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--- old/usr/src/uts/intel/io/acpica/changes.txt
+++ new/usr/src/uts/intel/io/acpica/changes.txt
1 1 ----------------------------------------
2 -27 May 2011. Summary of changes for version 20110527:
2 +12 February 2016. Summary of changes for version 20160212:
3 3
4 -This release is available at www.acpica.org/downloads
4 +This release is available at https://acpica.org/downloads
5 5
6 +1) ACPICA kernel-resident subsystem:
7 +
8 +Implemented full support for the ACPI 6.1 specification (released in
9 +January). This version of the specification is available at:
10 +http://www.uefi.org/specifications
11 +
12 +Only a relatively small number of changes were required in ACPICA to
13 +support ACPI 6.1, in these areas:
14 +- New predefined names
15 +- New _HID values
16 +- A new subtable for HEST
17 +- A few other header changes for new values
18 +
19 +Ensure \_SB_._INI is executed before any _REG methods are executed. There
20 +appears to be existing BIOS code that relies on this behavior. Lv Zheng.
21 +
22 +Reverted a change made in version 20151218 which enabled method
23 +invocations to be targets of various ASL operators (SuperName and Target
24 +grammar elements). While the new behavior is supported by the ACPI
25 +specification, other AML interpreters do not support this behavior and
26 +never will. The ACPI specification will be updated for ACPI 6.2 to remove
27 +this support. Therefore, the change was reverted to the original ACPICA
28 +behavior.
29 +
30 +ACPICA now supports the GCC 6 compiler.
31 +
32 +Current Release: (Note: build changes increased sizes)
33 + Non-Debug Version: 136.2K Code, 51.5K Data, 187.7K Total
34 + Debug Version: 200.4K Code, 82.0K Data, 282.4K Total
35 +Previous Release:
36 + Non-Debug Version: 102.7K Code, 28.4K Data, 131.1K Total
37 + Debug Version: 200.4K Code, 81.9K Data, 282.3K Total
38 +
39 +
40 +2) iASL Compiler/Disassembler and Tools:
41 +
42 +Completed full support for the ACPI 6.0 External() AML opcode. The
43 +compiler emits an external AML opcode for each ASL External statement.
44 +This opcode is used by the disassembler to assist with the disassembly of
45 +external control methods by specifying the required number of arguments
46 +for the method. AML interpreters do not use this opcode. To ensure that
47 +interpreters do not even see the opcode, a block of one or more external
48 +opcodes is surrounded by an "If(0)" construct. As this feature becomes
49 +commonly deployed in BIOS code, the ability of disassemblers to correctly
50 +disassemble AML code will be greatly improved. David Box.
51 +
52 +iASL: Implemented support for an optional cross-reference output file.
53 +The -lx option will create a the cross-reference file with the suffix
54 +"xrf". Three different types of cross-reference are created in this file:
55 +- List of object references made from within each control method
56 +- Invocation (caller) list for each user-defined control method
57 +- List of references to each non-method object in the namespace
58 +
59 +iASL: Method invocations as ASL Target operands are now disallowed and
60 +flagged as errors in preparation for ACPI 6.2 (see the description of the
61 +problem above).
62 +
63 +----------------------------------------
64 +8 January 2016. Summary of changes for version 20160108:
65 +
66 +1) ACPICA kernel-resident subsystem:
67 +
68 +Updated all ACPICA copyrights and signons to 2016: Added the 2016
69 +copyright to all source code module headers and utility/tool signons.
70 +This includes the standard Linux dual-license header. This affects
71 +virtually every file in the ACPICA core subsystem, iASL compiler, all
72 +ACPICA utilities, and the ACPICA test suite.
73 +
74 +Fixed a regression introduced in version 20151218 concerning the
75 +execution of so-called module-level ASL/AML code. Namespace objects
76 +created under a module-level If() construct were not properly/fully
77 +entered into the namespace and could cause an interpreter fault when
78 +accessed.
79 +
80 +Example Code and Data Size: These are the sizes for the OS-independent
81 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
82 +debug version of the code includes the debug output trace mechanism and
83 +has a much larger code and data size.
84 +
85 +Current Release:
86 + Non-Debug Version: 102.7K Code, 28.4K Data, 131.1K Total
87 + Debug Version: 200.4K Code, 81.9K Data, 282.4K Total
88 + Previous Release:
89 + Non-Debug Version: 102.6K Code, 28.4K Data, 131.0K Total
90 + Debug Version: 200.3K Code, 81.9K Data, 282.3K Total
91 +
92 +
93 +2) iASL Compiler/Disassembler and Tools:
94 +
95 +Fixed a problem with the compilation of the GpioIo and GpioInt resource
96 +descriptors. The _PIN field name was incorrectly defined to be an array
97 +of 32-bit values, but the _PIN values are in fact 16 bits each. This
98 +would cause incorrect bit width warnings when using Word (16-bit) fields
99 +to access the descriptors.
100 +
101 +
102 +----------------------------------------
103 +18 December 2015. Summary of changes for version 20151218:
104 +
105 +1) ACPICA kernel-resident subsystem:
106 +
107 +Implemented per-AML-table execution of "module-level code" as individual
108 +ACPI tables are loaded into the namespace during ACPICA initialization.
109 +In other words, any module-level code within an AML table is executed
110 +immediately after the table is loaded, instead of batched and executed
111 +after all of the tables have been loaded. This provides compatibility
112 +with other ACPI implementations. ACPICA BZ 1219. Bob Moore, Lv Zheng,
113 +David Box.
114 +
115 +To fully support the feature above, the default operation region handlers
116 +for the SystemMemory, SystemIO, and PCI_Config address spaces are now
117 +installed before any ACPI tables are loaded. This enables module-level
118 +code to access these address spaces during the table load and module-
119 +level code execution phase. ACPICA BZ 1220. Bob Moore, Lv Zheng, David
120 +Box.
121 +
122 +Implemented several changes to the internal _REG support in conjunction
123 +with the changes above. Also, changes to the AcpiExec/AcpiNames/Examples
124 +utilities for the changes above. Although these tools were changed, host
125 +operating systems that simply use the default handlers for SystemMemory,
126 +SystemIO, and PCI_Config spaces should not require any update. Lv Zheng.
127 +
128 +For example, in the code below, DEV1 is conditionally added to the
129 +namespace by the DSDT via module-level code that accesses an operation
130 +region. The SSDT references DEV1 via the Scope operator. DEV1 must be
131 +created immediately after the DSDT is loaded in order for the SSDT to
132 +successfully reference DEV1. Previously, this code would cause an
133 +AE_NOT_EXIST exception during the load of the SSDT. Now, this code is
134 +fully supported by ACPICA.
135 +
136 + DefinitionBlock ("", "DSDT", 2, "Intel", "DSDT1", 1)
137 + {
138 + OperationRegion (OPR1, SystemMemory, 0x400, 32)
139 + Field (OPR1, AnyAcc, NoLock, Preserve)
140 + {
141 + FLD1, 1
142 + }
143 + If (FLD1)
144 + {
145 + Device (\DEV1)
146 + {
147 + }
148 + }
149 + }
150 + DefinitionBlock ("", "SSDT", 2, "Intel", "SSDT1", 1)
151 + {
152 + External (\DEV1, DeviceObj)
153 + Scope (\DEV1)
154 + {
155 + }
156 + }
157 +
158 +Fixed an AML interpreter problem where control method invocations were
159 +not handled correctly when the invocation was itself a SuperName argument
160 +to another ASL operator. In these cases, the method was not invoked.
161 +ACPICA BZ 1002. Affects the following ASL operators that have a SuperName
162 +argument:
163 + Store
164 + Acquire, Wait
165 + CondRefOf, RefOf
166 + Decrement, Increment
167 + Load, Unload
168 + Notify
169 + Signal, Release, Reset
170 + SizeOf
171 +
172 +Implemented automatic String-to-ObjectReference conversion support for
173 +packages returned by predefined names (such as _DEP). A common BIOS error
174 +is to add double quotes around an ObjectReference namepath, which turns
175 +the reference into an unexpected string object. This support detects the
176 +problem and corrects it before the package is returned to the caller that
177 +invoked the method. Lv Zheng.
178 +
179 +Implemented extensions to the Concatenate operator. Concatenate now
180 +accepts any type of object, it is not restricted to simply
181 +Integer/String/Buffer. For objects other than these 3 basic data types,
182 +the argument is treated as a string containing the name of the object
183 +type. This expands the utility of Concatenate and the Printf/Fprintf
184 +macros. ACPICA BZ 1222.
185 +
186 +Cleaned up the output of the ASL Debug object. The timer() value is now
187 +optional and no longer emitted by default. Also, the basic data types of
188 +Integer/String/Buffer are simply emitted as their values, without a data
189 +type string -- since the data type is obvious from the output. ACPICA BZ
190 +1221.
191 +
192 +Example Code and Data Size: These are the sizes for the OS-independent
193 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
194 +debug version of the code includes the debug output trace mechanism and
195 +has a much larger code and data size.
196 +
197 + Current Release:
198 + Non-Debug Version: 102.6K Code, 28.4K Data, 131.0K Total
199 + Debug Version: 200.3K Code, 81.9K Data, 282.3K Total
200 + Previous Release:
201 + Non-Debug Version: 102.0K Code, 28.3K Data, 130.3K Total
202 + Debug Version: 199.6K Code, 81.8K Data, 281.4K Total
203 +
204 +
205 +2) iASL Compiler/Disassembler and Tools:
206 +
207 +iASL: Fixed some issues with the ASL Include() operator. This operator
208 +was incorrectly defined in the iASL parser rules, causing a new scope to
209 +be opened for the code within the include file. This could lead to
210 +several issues, including allowing ASL code that is technically illegal
211 +and not supported by AML interpreters. Note, this does not affect the
212 +related #include preprocessor operator. ACPICA BZ 1212.
213 +
214 +iASL/Disassembler: Implemented support for the ASL ElseIf operator. This
215 +operator is essentially an ASL macro since there is no AML opcode
216 +associated with it. The code emitted by the iASL compiler for ElseIf is
217 +an Else opcode followed immediately by an If opcode. The disassembler
218 +will now emit an ElseIf if it finds an Else immediately followed by an
219 +If. This simplifies the decoded ASL, especially for deeply nested
220 +If..Else and large Switch constructs. Thus, the disassembled code more
221 +closely follows the original source ASL. ACPICA BZ 1211. Example:
222 +
223 + Old disassembly:
224 + Else
225 + {
226 + If (Arg0 == 0x02)
227 + {
228 + Local0 = 0x05
229 + }
230 + }
231 +
232 + New disassembly:
233 + ElseIf (Arg0 == 0x02)
234 + {
235 + Local0 = 0x05
236 + }
237 +
238 +AcpiExec: Added support for the new module level code behavior and the
239 +early region installation. This required a small change to the
240 +initialization, since AcpiExec must install its own operation region
241 +handlers.
242 +
243 +AcpiExec: Added support to make the debug object timer optional. Default
244 +is timer disabled. This cleans up the debug object output -- the timer
245 +data is rarely used.
246 +
247 +AcpiExec: Multiple ACPI tables are now loaded in the order that they
248 +appear on the command line. This can be important when there are
249 +interdependencies/references between the tables.
250 +
251 +iASL/Templates. Add support to generate template files with multiple
252 +SSDTs within a single output file. Also added ommand line support to
253 +specify the number of SSDTs (in addition to a single DSDT). ACPICA BZ
254 +1223, 1225.
255 +
256 +
257 +----------------------------------------
258 +24 November 2015. Summary of changes for version 20151124:
259 +
260 +1) ACPICA kernel-resident subsystem:
261 +
262 +Fixed a possible regression for a previous update to FADT handling. The
263 +FADT no longer has a fixed table ID, causing some issues with code that
264 +was hardwired to a specific ID. Lv Zheng.
265 +
266 +Fixed a problem where the method auto-serialization could interfere with
267 +the current SyncLevel. This change makes the auto-serialization support
268 +transparent to the SyncLevel support and management.
269 +
270 +Removed support for the _SUB predefined name in AcpiGetObjectInfo. This
271 +interface is intended for early access to the namespace during the
272 +initial namespace device discovery walk. The _SUB method has been seen to
273 +access operation regions in some cases, causing errors because the
274 +operation regions are not fully initialized.
275 +
276 +AML Debugger: Fixed some issues with the terminate/quit/exit commands
277 +that can cause faults. Lv Zheng.
278 +
279 +AML Debugger: Add thread ID support so that single-step mode only applies
280 +to the AML Debugger thread. This prevents runtime errors within some
281 +kernels. Lv Zheng.
282 +
283 +Eliminated extraneous warnings from AcpiGetSleepTypeData. Since the _Sx
284 +methods that are invoked by this interface are optional, removed warnings
285 +emitted for the case where one or more of these methods do not exist.
286 +ACPICA BZ 1208, original change by Prarit Bhargava.
287 +
288 +Made a major pass through the entire ACPICA source code base to
289 +standardize formatting that has diverged a bit over time. There are no
290 +functional changes, but this will of course cause quite a few code
291 +differences from the previous ACPICA release.
292 +
293 +Example Code and Data Size: These are the sizes for the OS-independent
294 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
295 +debug version of the code includes the debug output trace mechanism and
296 +has a much larger code and data size.
297 +
298 + Current Release:
299 + Non-Debug Version: 102.0K Code, 28.3K Data, 130.3K Total
300 + Debug Version: 199.6K Code, 81.8K Data, 281.4K Total
301 + Previous Release:
302 + Non-Debug Version: 101.7K Code, 27.9K Data, 129.6K Total
303 + Debug Version: 199.3K Code, 81.4K Data, 280.7K Total
304 +
305 +
306 +2) iASL Compiler/Disassembler and Tools:
307 +
308 +iASL/acpiexec/acpixtract/disassembler: Added support to allow multiple
309 +definition blocks within a single ASL file and the resulting AML file.
310 +Support for this type of file was also added to the various tools that
311 +use binary AML files: acpiexec, acpixtract, and the AML disassembler. The
312 +example code below shows two definition blocks within the same file:
313 +
314 + DefinitionBlock ("dsdt.aml", "DSDT", 2, "Intel", "Template",
315 +0x12345678)
316 + {
317 + }
318 + DefinitionBlock ("", "SSDT", 2, "Intel", "Template", 0xABCDEF01)
319 + {
320 + }
321 +
322 +iASL: Enhanced typechecking for the Name() operator. All expressions for
323 +the value of the named object must be reduced/folded to a single constant
324 +at compile time, as per the ACPI specification (the AML definition of
325 +Name()).
326 +
327 +iASL: Fixed some code indentation issues for the -ic and -ia options (C
328 +and assembly headers). Now all emitted code correctly begins in column 1.
329 +
330 +iASL: Added an error message for an attempt to open a Scope() on an
331 +object defined in an SSDT. The DSDT is always loaded into the namespace
332 +first, so any attempt to open a Scope on an SSDT object will fail at
333 +runtime.
334 +
335 +
336 +----------------------------------------
337 +30 September 2015. Summary of changes for version 20150930:
338 +
339 +1) ACPICA kernel-resident subsystem:
340 +
341 +Debugger: Implemented several changes and bug fixes to assist support for
342 +the in-kernel version of the AML debugger. Lv Zheng.
343 +- Fix the "predefined" command for in-kernel debugger.
344 +- Do not enter debug command loop for the help and version commands.
345 +- Disallow "execute" command during execution/single-step of a method.
346 +
347 +Interpreter: Updated runtime typechecking for all operators that have
348 +target operands. The operand is resolved and validated that it is legal.
349 +For example, the target cannot be a non-data object such as a Device,
350 +Mutex, ThermalZone, etc., as per the ACPI specification.
351 +
352 +Debugger: Fixed the double-mutex user I/O handshake to work when local
353 +deadlock detection is enabled.
354 +
355 +Debugger: limited display of method locals and arguments (LocalX and
356 +ArgX) to only those that have actually been initialized. This prevents
357 +lines of extraneous output.
358 +
359 +Updated the definition of the NFIT table to correct the bit polarity of
360 +one flag: ACPI_NFIT_MEM_ARMED --> ACPI_NFIT_MEM_NOT_ARMED
361 +
362 +Example Code and Data Size: These are the sizes for the OS-independent
363 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
364 +debug version of the code includes the debug output trace mechanism and
365 +has a much larger code and data size.
366 +
367 + Current Release:
368 + Non-Debug Version: 101.7K Code, 27.9K Data, 129.6K Total
369 + Debug Version: 199.3K Code, 81.4K Data, 280.7K Total
370 + Previous Release:
371 + Non-Debug Version: 101.3K Code, 27.7K Data, 129.0K Total
372 + Debug Version: 198.6K Code, 80.9K Data, 279.5K Total
373 +
374 +
375 +2) iASL Compiler/Disassembler and Tools:
376 +
377 +iASL: Improved the compile-time typechecking for operands of many of the
378 +ASL operators:
379 +
380 +-- Added an option to disable compiler operand/operator typechecking (-
381 +ot).
382 +
383 +-- For the following operators, the TermArg operands are now validated
384 +when possible to be Integer data objects: BankField, OperationRegion,
385 +DataTableRegion, Buffer, and Package.
386 +
387 +-- Store (Source, Target): Both the source and target operands are
388 +resolved and checked that the operands are both legal. For example,
389 +neither operand can be a non-data object such as a Device, Mutex,
390 +ThermalZone, etc. Note, as per the ACPI specification, the CopyObject
391 +operator can be used to store an object to any type of target object.
392 +
393 +-- Store (Source, Target): If the source is a Package object, the target
394 +must be a Package object, LocalX, ArgX, or Debug. Likewise, if the target
395 +is a Package, the source must also be a Package.
396 +
397 +-- Store (Source, Target): A warning is issued if the source and target
398 +resolve to the identical named object.
399 +
400 +-- Store (Source, <method invocation>): An error is generated for the
401 +target method invocation, as this construct is not supported by the AML
402 +interpreter.
403 +
404 +-- For all ASL math and logic operators, the target operand must be a
405 +data object (Integer, String, Buffer, LocalX, ArgX, or Debug). This
406 +includes the function return value also.
407 +
408 +-- External declarations are also included in the typechecking where
409 +possible. External objects defined using the UnknownObj keyword cannot be
410 +typechecked, however.
411 +
412 +iASL and Disassembler: Added symbolic (ASL+) support for the ASL Index
413 +operator:
414 +- Legacy code: Index(PKG1, 3)
415 +- New ASL+ code: PKG1[3]
416 +This completes the ACPI 6.0 ASL+ support as it was the only operator not
417 +supported.
418 +
419 +iASL: Fixed the file suffix for the preprocessor output file (.i). Two
420 +spaces were inadvertently appended to the filename, causing file access
421 +and deletion problems on some systems.
422 +
423 +ASL Test Suite (ASLTS): Updated the master makefile to generate all
424 +possible compiler output files when building the test suite -- thus
425 +exercising these features of the compiler. These files are automatically
426 +deleted when the test suite exits.
427 +
428 +
429 +----------------------------------------
430 +18 August 2015. Summary of changes for version 20150818:
431 +
432 +1) ACPICA kernel-resident subsystem:
433 +
434 +Fix a regression for AcpiGetTableByIndex interface causing it to fail. Lv
435 +Zheng. ACPICA BZ 1186.
436 +
437 +Completed development to ensure that the ACPICA Disassembler and Debugger
438 +are fully standalone components of ACPICA. Removed cross-component
439 +dependences. Lv Zheng.
440 +
441 +The max-number-of-AML-loops is now runtime configurable (previously was
442 +compile-time only). This is essentially a loop timeout to force-abort
443 +infinite AML loops. ACPCIA BZ 1192.
444 +
445 +Debugger: Cleanup output to dump ACPI names and namepaths without any
446 +trailing underscores. Lv Zheng. ACPICA BZ 1135.
447 +
448 +Removed unnecessary conditional compilations across the Debugger and
449 +Disassembler components where entire modules could be left uncompiled.
450 +
451 +The aapits test is deprecated and has been removed from the ACPICA git
452 +tree. The test has never been completed and has not been maintained, thus
453 +becoming rather useless. ACPICA BZ 1015, 794.
454 +
455 +A batch of small changes to close bugzilla and other reports:
456 +- Remove duplicate code for _PLD processing. ACPICA BZ 1176.
457 +- Correctly cleanup after a ACPI table load failure. ACPICA BZ 1185.
458 +- iASL: Support POSIX yacc again in makefile. Jung-uk Kim.
459 +- ACPI table support: general cleanup and simplification. Lv Zheng, Bob
460 +Moore.
461 +- ACPI table support: fix for a buffer read overrun in AcpiTbFindTable.
462 +ACPICA BZ 1184.
463 +- Enhance parameter validation for DataTableRegion and LoadTable ASL/AML
464 +operators.
465 +- Debugger: Split debugger initialization/termination interfaces. Lv
466 +Zheng.
467 +- AcpiExec: Emit OemTableId for SSDTs during the load phase for table
468 +identification.
469 +- AcpiExec: Add debug message during _REG method phase during table
470 +load/init.
471 +- AcpiNames: Fix a regression where some output was missing and no longer
472 +emitted.
473 +- Debugger: General cleanup and simplification. Lv Zheng.
474 +- Disassembler: Cleanup use of several global option variables. Lv Zheng.
475 +
476 +Example Code and Data Size: These are the sizes for the OS-independent
477 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
478 +debug version of the code includes the debug output trace mechanism and
479 +has a much larger code and data size.
480 +
481 + Current Release:
482 + Non-Debug Version: 101.3K Code, 27.7K Data, 129.0K Total
483 + Debug Version: 198.6K Code, 80.9K Data, 279.5K Total
484 + Previous Release:
485 + Non-Debug Version: 100.9K Code, 24.5K Data, 125.4K Total
486 + Debug Version: 197.8K Code, 81.5K Data, 279.3K Total
487 +
488 +
489 +2) iASL Compiler/Disassembler and Tools:
490 +
491 +AcpiExec: Fixed a problem where any more than 32 ACPI tables in the XSDT
492 +were not handled properly and caused load errors. Now, properly invoke
493 +and use the ACPICA auto-reallocate mechanism for ACPI table data
494 +structures. ACPICA BZ 1188
495 +
496 +AcpiNames: Add command-line wildcard support for ACPI table files. ACPICA
497 +BZ 1190.
498 +
499 +AcpiExec and AcpiNames: Add -l option to load ACPI tables only. For
500 +AcpiExec, this means that no control methods (like _REG/_INI/_STA) are
501 +executed during initialization. ACPICA BZ 1187, 1189.
502 +
503 +iASL/Disassembler: Implemented a prototype "listing" mode that emits AML
504 +that corresponds to each disassembled ASL statement, to simplify
505 +debugging. ACPICA BZ 1191.
506 +
507 +Debugger: Add option to the "objects" command to display a summary of the
508 +current namespace objects (Object type and count). This is displayed if
509 +the command is entered with no arguments.
510 +
511 +AcpiNames: Add -x option to specify debug level, similar to AcpiExec.
512 +
513 +
514 +----------------------------------------
515 +17 July 2015. Summary of changes for version 20150717:
516 +
517 +1) ACPICA kernel-resident subsystem:
518 +
519 +Improved the partitioning between the Debugger and Disassembler
520 +components. This allows the Debugger to be used standalone within kernel
521 +code without the Disassembler (which is used for single stepping also).
522 +This renames and moves one file, dmobject.c to dbobject.c. Lv Zheng.
523 +
524 +Debugger: Implemented a new command to trace the execution of control
525 +methods (Trace). This is especially useful for the in-kernel version of
526 +the debugger when file I/O may not be available for method trace output.
527 +See the ACPICA reference for more information. Lv Zheng.
528 +
529 +Moved all C library prototypes (used for the local versions of these
530 +functions when requested) to a new header, acclib.h
531 +Cleaned up the use of non-ANSI C library functions. These functions are
532 +implemented locally in ACPICA. Moved all such functions to a common
533 +source file, utnonansi.c
534 +
535 +Debugger: Fixed a problem with the "!!" command (get last command
536 +executed) where the debugger could enter an infinite loop and eventually
537 +crash.
538 +
539 +Removed the use of local macros that were used for some of the standard C
540 +library functions to automatically cast input parameters. This mostly
541 +affected the is* functions where the input parameter is defined to be an
542 +int. This required a few modifications to the main ACPICA source code to
543 +provide casting for these functions and eliminate possible compiler
544 +warnings for these parameters.
545 +
546 +Across the source code, added additional status/error checking to resolve
547 +issues discovered by static source code analysis tools such as Coverity.
548 +
549 +Example Code and Data Size: These are the sizes for the OS-independent
550 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
551 +debug version of the code includes the debug output trace mechanism and
552 +has a much larger code and data size.
553 +
554 + Current Release:
555 + Non-Debug Version: 100.9K Code, 24.5K Data, 125.4K Total
556 + Debug Version: 197.8K Code, 81.5K Data, 279.3K Total
557 + Previous Release:
558 + Non-Debug Version: 100.6K Code, 27.6K Data, 128.2K Total
559 + Debug Version: 196.2K Code, 81.0K Data, 277.2K Total
560 +
561 +
562 +2) iASL Compiler/Disassembler and Tools:
563 +
564 +iASL: Fixed a regression where the device map file feature no longer
565 +worked properly when used in conjunction with the disassembler. It only
566 +worked properly with the compiler itself.
567 +
568 +iASL: Implemented a new warning for method LocalX variables that are set
569 +but never used (similar to a C compiler such as gcc). This also applies
570 +to ArgX variables that are not defined by the parent method, and are
571 +instead (legally) used as local variables.
572 +
573 +iASL/Preprocessor: Finished the pass-through of line numbers from the
574 +preprocessor to the compiler. This ensures that compiler errors/warnings
575 +have the correct original line numbers and filenames, regardless of any
576 +#include files.
577 +
578 +iASL/Preprocessor: Fixed a couple of issues with comment handling and the
579 +pass-through of comments to the preprocessor output file (which becomes
580 +the compiler input file). Also fixed a problem with // comments that
581 +appear after a math expression.
582 +
583 +iASL: Added support for the TCPA server table to the table compiler and
584 +template generator. (The client table was already previously supported)
585 +
586 +iASL/Preprocessor: Added a permanent #define of the symbol "__IASL__" to
587 +identify the iASL compiler.
588 +
589 +Cleaned up the use of the macros NEGATIVE and POSITIVE which were defined
590 +multiple times. The new names are ACPI_SIGN_NEGATIVE and
591 +ACPI_SIGN_POSITIVE.
592 +
593 +AcpiHelp: Update to expand help messages for the iASL preprocessor
594 +directives.
595 +
596 +
597 +----------------------------------------
598 +19 June 2015. Summary of changes for version 20150619:
599 +
600 +Two regressions in version 20150616 have been addressed:
601 +
602 +Fixes some problems/issues with the C library macro removal (ACPI_STRLEN,
603 +etc.) This update changes ACPICA to only use the standard headers for
604 +functions, or the prototypes for the local versions of the C library
605 +functions. Across the source code, this required some additional casts
606 +for some Clib invocations for portability. Moved all local prototypes to
607 +a new file, acclib.h
608 +
609 +Fixes several problems with recent changes to the handling of the FACS
610 +table that could cause some systems not to boot.
611 +
612 +
613 +----------------------------------------
614 +16 June 2015. Summary of changes for version 20150616:
615 +
616 +
617 +1) ACPICA kernel-resident subsystem:
618 +
619 +Across the entire ACPICA source code base, the various macros for the C
620 +library functions (such as ACPI_STRLEN, etc.) have been removed and
621 +replaced by the standard C library names (strlen, etc.) The original
622 +purpose for these macros is no longer applicable. This simplification
623 +reduces the number of macros used in the ACPICA source code
624 +significantly, improving readability and maintainability.
625 +
626 +Implemented support for a new ACPI table, the OSDT. This table, the
627 +"override" SDT, can be loaded directly by the host OS at boot time. It
628 +enables the replacement of existing namespace objects that were installed
629 +via the DSDT and/or SSDTs. The primary purpose for this is to replace
630 +buggy or incorrect ASL/AML code obtained via the BIOS. The OSDT is slated
631 +for inclusion in a future version of the ACPI Specification. Lv Zheng/Bob
632 +Moore.
633 +
634 +Added support for systems with (improperly) two FACS tables -- a "32-bit"
635 +table (via FADT 32-bit legacy field) and a "64-bit" table (via the 64-bit
636 +X field). This change will support both automatically. There continues to
637 +be systems found with this issue. This support requires a change to the
638 +AcpiSetFirmwareWakingVector interface. Also, a public global variable has
639 +been added to allow the host to select which FACS is desired
640 +(AcpiGbl_Use32BitFacsAddresses). See the ACPICA reference for more
641 +details Lv Zheng.
642 +
643 +Added a new feature to allow for systems that do not contain an FACS.
644 +Although this is already supported on hardware-reduced platforms, the
645 +feature has been extended for all platforms. The reasoning is that we do
646 +not want to abort the entire ACPICA initialization just because the
647 +system is seriously buggy and has no FACS.
648 +
649 +Fixed a problem where the GUID strings for NFIT tables (in acuuid.h) were
650 +not correctly transcribed from the ACPI specification in ACPICA version
651 +20150515.
652 +
653 +Implemented support for the _CLS object in the AcpiGetObjectInfo external
654 +interface.
655 +
656 +Updated the definitions of the TCPA and TPM2 ACPI tables to the more
657 +recent TCG ACPI Specification, December 14, 2014. Table disassembler and
658 +compiler also updated. Note: The TCPA "server" table is not supported by
659 +the disassembler/table-compiler at this time.
660 +
661 +ACPI 6.0: Added definitions for the new GIC version field in the MADT.
662 +
663 +Example Code and Data Size: These are the sizes for the OS-independent
664 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
665 +debug version of the code includes the debug output trace mechanism and
666 +has a much larger code and data size.
667 +
668 + Current Release:
669 + Non-Debug Version: 100.6K Code, 27.6K Data, 128.2K Total
670 + Debug Version: 196.2K Code, 81.0K Data, 277.2K Total
671 + Previous Release:
672 + Non-Debug Version: 99.9K Code, 27.5K Data, 127.4K Total
673 + Debug Version: 195.2K Code, 80.8K Data, 276.0K Total
674 +
675 +
676 +2) iASL Compiler/Disassembler and Tools:
677 +
678 +Disassembler: Fixed a problem with the new symbolic operator disassembler
679 +where incorrect ASL code could be emitted in some cases for the "non-
680 +commutative" operators -- Subtract, Divide, Modulo, ShiftLeft, and
681 +ShiftRight. The actual problem cases seem to be rather unusual in common
682 +ASL code, however. David Box.
683 +
684 +Modified the linux version of acpidump to obtain ACPI tables from not
685 +just /dev/mem (which may not exist) and /sys/firmware/acpi/tables. Lv
686 +Zheng.
687 +
688 +iASL: Fixed a problem where the user preprocessor output file (.i)
689 +contained extra data that was not expected. The compiler was using this
690 +file as a temporary file and passed through #line directives in order to
691 +keep compiler error messages in sync with the input file and line number
692 +across multiple include files. The (.i) is no longer a temporary file as
693 +the compiler uses a new, different file for the original purpose.
694 +
695 +iASL: Fixed a problem where comments within the original ASL source code
696 +file were not passed through to the preprocessor output file, nor any
697 +listing files.
698 +
699 +iASL: Fixed some issues for the handling of the "#include" preprocessor
700 +directive and the similar (but not the same) "Include" ASL operator.
701 +
702 +iASL: Add support for the new OSDT in both the disassembler and compiler.
703 +
704 +iASL: Fixed a problem with the constant folding support where a Buffer
705 +object could be incorrectly generated (incorrectly formed) during a
706 +conversion to a Store() operator.
707 +
708 +AcpiHelp: Updated for new NFIT GUIDs, "External" AML opcode, and new
709 +description text for the _REV predefined name. _REV now permanently
710 +returns 2, as per the ACPI 6.0 specification.
711 +
712 +Debugger: Enhanced the output of the Debug ASL object for references
713 +produced by the Index operator. For Buffers and strings, only output the
714 +actual byte pointed to by the index. For packages, only print the single
715 +package element decoded by the index. Previously, the entire
716 +buffer/string/package was emitted.
717 +
718 +iASL/Table-compiler: Fixed a regression where the "generic" data types
719 +were no longer recognized, causing errors.
720 +
721 +
722 +----------------------------------------
723 +15 May 2015. Summary of changes for version 20150515:
724 +
725 +This release implements most of ACPI 6.0 as described below.
726 +
727 +1) ACPICA kernel-resident subsystem:
728 +
729 +Implemented runtime argument checking and return value checking for all
730 +new ACPI 6.0 predefined names. This includes: _BTH, _CR3, _DSD, _LPI,
731 +_MTL, _PRR, _RDI, _RST, _TFP, _TSN.
732 +
733 +Example Code and Data Size: These are the sizes for the OS-independent
734 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
735 +debug version of the code includes the debug output trace mechanism and
736 +has a much larger code and data size.
737 +
738 + Current Release:
739 + Non-Debug Version: 99.9K Code, 27.5K Data, 127.4K Total
740 + Debug Version: 195.2K Code, 80.8K Data, 276.0K Total
741 + Previous Release:
742 + Non-Debug Version: 99.1K Code, 27.3K Data, 126.4K Total
743 + Debug Version: 192.8K Code, 79.9K Data, 272.7K Total
744 +
745 +
746 +2) iASL Compiler/Disassembler and Tools:
747 +
748 +iASL compiler: Added compile-time support for all new ACPI 6.0 predefined
749 +names (argument count validation and return value typechecking.)
750 +
751 +iASL disassembler and table compiler: implemented support for all new
752 +ACPI 6.0 tables. This includes: DRTM, IORT, LPIT, NFIT, STAO, WPBT, XENV.
753 +
754 +iASL disassembler and table compiler: Added ACPI 6.0 changes to existing
755 +tables: FADT, MADT.
756 +
757 +iASL preprocessor: Added a new directive to enable inclusion of binary
758 +blobs into ASL code. The new directive is #includebuffer. It takes a
759 +binary file as input and emits a named ascii buffer object into the ASL
760 +code.
761 +
762 +AcpiHelp: Added support for all new ACPI 6.0 predefined names.
763 +
764 +AcpiHelp: Added a new option, -d, to display all iASL preprocessor
765 +directives.
766 +
767 +AcpiHelp: Added a new option, -t, to display all known/supported ACPI
768 +tables.
769 +
770 +
771 +----------------------------------------
772 +10 April 2015. Summary of changes for version 20150410:
773 +
774 +Reverted a change introduced in version 20150408 that caused
775 +a regression in the disassembler where incorrect operator
776 +symbols could be emitted.
777 +
778 +
779 +----------------------------------------
780 +08 April 2015. Summary of changes for version 20150408:
781 +
782 +
783 +1) ACPICA kernel-resident subsystem:
784 +
785 +Permanently set the return value for the _REV predefined name. It now
786 +returns 2 (was 5). This matches other ACPI implementations. _REV will be
787 +deprecated in the future, and is now defined to be 1 for ACPI 1.0, and 2
788 +for ACPI 2.0 and later. It should never be used to differentiate or
789 +identify operating systems.
790 +
791 +Added the "Windows 2015" string to the _OSI support. ACPICA will now
792 +return TRUE to a query with this string.
793 +
794 +Fixed several issues with the local version of the printf function.
795 +
796 +Added the C99 compiler option (-std=c99) to the Unix makefiles.
797 +
798 + Current Release:
799 + Non-Debug Version: 99.9K Code, 27.4K Data, 127.3K Total
800 + Debug Version: 195.2K Code, 80.7K Data, 275.9K Total
801 + Previous Release:
802 + Non-Debug Version: 98.8K Code, 27.3K Data, 126.1K Total
803 + Debug Version: 192.1K Code, 79.8K Data, 271.9K Total
804 +
805 +
806 +2) iASL Compiler/Disassembler and Tools:
807 +
808 +iASL: Implemented an enhancement to the constant folding feature to
809 +transform the parse tree to a simple Store operation whenever possible:
810 + Add (2, 3, X) ==> is converted to: Store (5, X)
811 + X = 2 + 3 ==> is converted to: Store (5, X)
812 +
813 +Updated support for the SLIC table (Software Licensing Description Table)
814 +in both the Data Table compiler and the disassembler. The SLIC table
815 +support now conforms to "Microsoft Software Licensing Tables (SLIC and
816 +MSDM). November 29, 2011. Copyright 2011 Microsoft". Note: Any SLIC data
817 +following the ACPI header is now defined to be "Proprietary Data", and as
818 +such, can only be entered or displayed as a hex data block.
819 +
820 +Implemented full support for the MSDM table as described in the document
821 +above. Note: The format of MSDM is similar to SLIC. Any MSDM data
822 +following the ACPI header is defined to be "Proprietary Data", and can
823 +only be entered or displayed as a hex data block.
824 +
825 +Implemented the -Pn option for the iASL Table Compiler (was only
826 +implemented for the ASL compiler). This option disables the iASL
827 +preprocessor.
828 +
829 +Disassembler: For disassembly of Data Tables, added a comment field
830 +around the Ascii equivalent data that is emitted as part of the "Raw
831 +Table Data" block. This prevents the iASL Preprocessor from possible
832 +confusion if/when the table is compiled.
833 +
834 +Disassembler: Added an option (-df) to force the disassembler to assume
835 +that the table being disassembled contains valid AML. This feature is
836 +useful for disassembling AML files that contain ACPI signatures other
837 +than DSDT or SSDT (such as OEMx or other signatures).
838 +
839 +Changes for the EFI version of the tools:
840 +1) Fixed a build error/issue
841 +2) Fixed a cast warning
842 +
843 +iASL: Fixed a path issue with the __FILE__ operator by making the
844 +directory prefix optional within the internal SplitInputFilename
845 +function.
846 +
847 +Debugger: Removed some unused global variables.
848 +
849 +Tests: Updated the makefile for proper generation of the AAPITS suite.
850 +
851 +
852 +----------------------------------------
853 +04 February 2015. Summary of changes for version 20150204:
854 +
855 +ACPICA kernel-resident subsystem:
856 +
857 +Updated all ACPICA copyrights and signons to 2014. Added the 2014
858 +copyright to all module headers and signons, including the standard Linux
859 +header. This affects virtually every file in the ACPICA core subsystem,
860 +iASL compiler, all ACPICA utilities, and the test suites.
861 +
862 +Events: Introduce ACPI_GPE_DISPATCH_RAW_HANDLER to fix GPE storm issues.
863 +A raw gpe handling mechanism was created to allow better handling of GPE
864 +storms that aren't easily managed by the normal handler. The raw handler
865 +allows disabling/renabling of the the GPE so that interrupt storms can be
866 +avoided in cases where events cannot be timely serviced. In this
867 +scenario, handlers should use the AcpiSetGpe() API to disable/enable the
868 +GPE. This API will leave the reference counts undisturbed, thereby
869 +preventing unintentional clearing of the GPE when the intent in only to
870 +temporarily disable it. Raw handlers allow enabling and disabling of a
871 +GPE by removing GPE register locking. As such, raw handlers much provide
872 +their own locks while using GPE API's to protect access to GPE data
873 +structures.
874 +Lv Zheng
875 +
876 +Events: Always modify GPE registers under the GPE lock.
877 +Applies GPE lock around AcpiFinishGpe() to protect access to GPE register
878 +values. Reported as bug by joe.liu@apple.com.
879 +
880 +Unix makefiles: Separate option to disable optimizations and
881 +_FORTIFY_SOURCE. This change removes the _FORTIFY_SOURCE flag from the
882 +NOOPT disable option and creates a separate flag (NOFORTIFY) for this
883 +purpose. Some toolchains may define _FORTIFY_SOURCE which leads redefined
884 +errors when building ACPICA. This allows disabling the option without
885 +also having to disable optimazations.
886 +David Box
887 +
888 + Current Release:
889 + Non-Debug Version: 101.7K Code, 27.9K Data, 129.6K Total
890 + Debug Version: 199.2K Code, 82.4K Data, 281.6K Total
891 +
892 +--
893 +--------------------------------------
894 +07 November 2014. Summary of changes for version 20141107:
895 +
896 +This release is available at https://acpica.org/downloads
897 +
898 +This release introduces and implements language extensions to ASL that
899 +provide support for symbolic ("C-style") operators and expressions. These
900 +language extensions are known collectively as ASL+.
901 +
902 +
903 +1) iASL Compiler/Disassembler and Tools:
904 +
905 +Disassembler: Fixed a problem with disassembly of the UartSerialBus
906 +macro. Changed "StopBitsNone" to the correct "StopBitsZero". David E.
907 +Box.
908 +
909 +Disassembler: Fixed the Unicode macro support to add escape sequences.
910 +All non-printable ASCII values are emitted as escape sequences, as well
911 +as the standard escapes for quote and backslash. Ensures that the
912 +disassembled macro can be correctly recompiled.
913 +
914 +iASL: Added Printf/Fprintf macros for formatted output. These macros are
915 +translated to existing AML Concatenate and Store operations. Printf
916 +writes to the ASL Debug object. Fprintf allows the specification of an
917 +ASL name as the target. Only a single format specifier is required, %o,
918 +since the AML interpreter dynamically converts objects to the required
919 +type. David E. Box.
920 +
921 + (old) Store (Concatenate (Concatenate (Concatenate (Concatenate
922 + (Concatenate (Concatenate (Concatenate ("", Arg0),
923 + ": Unexpected value for "), Arg1), ", "), Arg2),
924 + " at line "), Arg3), Debug)
925 +
926 + (new) Printf ("%o: Unexpected value for %o, %o at line %o",
927 + Arg0, Arg1, Arg2, Arg3)
928 +
929 + (old) Store (Concatenate (Concatenate (Concatenate (Concatenate
930 + ("", Arg1), ": "), Arg0), " Successful"), STR1)
931 +
932 + (new) Fprintf (STR1, "%o: %o Successful", Arg1, Arg0)
933 +
934 +iASL: Added debug options (-bp, -bt) to dynamically prune levels of the
935 +ASL parse tree before the AML code is generated. This allows blocks of
936 +ASL code to be removed in order to help locate and identify problem
937 +devices and/or code. David E. Box.
938 +
939 +AcpiExec: Added support (-fi) for an optional namespace object
940 +initialization file. This file specifies initial values for namespace
941 +objects as necessary for debugging and testing different ASL code paths
942 +that may be taken as a result of BIOS options.
943 +
944 +
945 +2) Overview of symbolic operator support for ASL (ASL+)
946 +-------------------------------------------------------
947 +
948 +As an extension to the ASL language, iASL implements support for symbolic
949 +(C-style) operators for math and logical expressions. This can greatly
950 +simplify ASL code as well as improve both readability and
951 +maintainability. These language extensions can exist concurrently with
952 +all legacy ASL code and expressions.
953 +
954 +The symbolic extensions are 100% compatible with existing AML
955 +interpreters, since no new AML opcodes are created. To implement the
956 +extensions, the iASL compiler transforms the symbolic expressions into
957 +the legacy ASL/AML equivalents at compile time.
958 +
959 +Full symbolic expressions are supported, along with the standard C
960 +precedence and associativity rules.
961 +
962 +Full disassembler support for the symbolic expressions is provided, and
963 +creates an automatic migration path for existing ASL code to ASL+ code
964 +via the disassembly process. By default, the disassembler now emits ASL+
965 +code with symbolic expressions. An option (-dl) is provided to force the
966 +disassembler to emit legacy ASL code if desired.
967 +
968 +Below is the complete list of the currently supported symbolic operators
969 +with examples. See the iASL User Guide for additional information.
970 +
971 +
972 +ASL+ Syntax Legacy ASL Equivalent
973 +----------- ---------------------
974 +
975 + // Math operators
976 +
977 +Z = X + Y Add (X, Y, Z)
978 +Z = X - Y Subtract (X, Y, Z)
979 +Z = X * Y Multiply (X, Y, Z)
980 +Z = X / Y Divide (X, Y, , Z)
981 +Z = X % Y Mod (X, Y, Z)
982 +Z = X << Y ShiftLeft (X, Y, Z)
983 +Z = X >> Y ShiftRight (X, Y, Z)
984 +Z = X & Y And (X, Y, Z)
985 +Z = X | Y Or (X, Y, Z)
986 +Z = X ^ Y Xor (X, Y, Z)
987 +Z = ~X Not (X, Z)
988 +X++ Increment (X)
989 +X-- Decrement (X)
990 +
991 + // Logical operators
992 +
993 +(X == Y) LEqual (X, Y)
994 +(X != Y) LNotEqual (X, Y)
995 +(X < Y) LLess (X, Y)
996 +(X > Y) LGreater (X, Y)
997 +(X <= Y) LLessEqual (X, Y)
998 +(X >= Y) LGreaterEqual (X, Y)
999 +(X && Y) LAnd (X, Y)
1000 +(X || Y) LOr (X, Y)
1001 +(!X) LNot (X)
1002 +
1003 + // Assignment and compound assignment operations
1004 +
1005 +X = Y Store (Y, X)
1006 +X += Y Add (X, Y, X)
1007 +X -= Y Subtract (X, Y, X)
1008 +X *= Y Multiply (X, Y, X)
1009 +X /= Y Divide (X, Y, , X)
1010 +X %= Y Mod (X, Y, X)
1011 +X <<= Y ShiftLeft (X, Y, X)
1012 +X >>= Y ShiftRight (X, Y, X)
1013 +X &= Y And (X, Y, X)
1014 +X |= Y Or (X, Y, X)
1015 +X ^= Y Xor (X, Y, X)
1016 +
1017 +
1018 +3) ASL+ Examples:
1019 +-----------------
1020 +
1021 +Legacy ASL:
1022 + If (LOr (LOr (LEqual (And (R510, 0x03FB), 0x02E0), LEqual (
1023 + And (R520, 0x03FB), 0x02E0)), LOr (LEqual (And (R530,
1024 +0x03FB),
1025 + 0x02E0), LEqual (And (R540, 0x03FB), 0x02E0))))
1026 + {
1027 + And (MEMB, 0xFFFFFFF0, SRMB)
1028 + Store (MEMB, Local2)
1029 + Store (PDBM, Local1)
1030 + And (PDBM, 0xFFFFFFFFFFFFFFF9, PDBM)
1031 + Store (SRMB, MEMB)
1032 + Or (PDBM, 0x02, PDBM)
1033 + }
1034 +
1035 +ASL+ version:
1036 + If (((R510 & 0x03FB) == 0x02E0) ||
1037 + ((R520 & 0x03FB) == 0x02E0) ||
1038 + ((R530 & 0x03FB) == 0x02E0) ||
1039 + ((R540 & 0x03FB) == 0x02E0))
1040 + {
1041 + SRMB = (MEMB & 0xFFFFFFF0)
1042 + Local2 = MEMB
1043 + Local1 = PDBM
1044 + PDBM &= 0xFFFFFFFFFFFFFFF9
1045 + MEMB = SRMB
1046 + PDBM |= 0x02
1047 + }
1048 +
1049 +Legacy ASL:
1050 + Store (0x1234, Local1)
1051 + Multiply (Add (Add (Local1, TEST), 0x20), Local2, Local3)
1052 + Multiply (Local2, Add (Add (Local1, TEST), 0x20), Local3)
1053 + Add (Local1, Add (TEST, Multiply (0x20, Local2)), Local3)
1054 + Store (Index (PKG1, 0x03), Local6)
1055 + Store (Add (Local3, Local2), Debug)
1056 + Add (Local1, 0x0F, Local2)
1057 + Add (Local1, Multiply (Local2, Local3), Local2)
1058 + Multiply (Add (Add (Local1, TEST), 0x20), ToBCD (Local1), Local3)
1059 +
1060 +ASL+ version:
1061 + Local1 = 0x1234
1062 + Local3 = (((Local1 + TEST) + 0x20) * Local2)
1063 + Local3 = (Local2 * ((Local1 + TEST) + 0x20))
1064 + Local3 = (Local1 + (TEST + (0x20 * Local2)))
1065 + Local6 = Index (PKG1, 0x03)
1066 + Debug = (Local3 + Local2)
1067 + Local2 = (Local1 + 0x0F)
1068 + Local2 = (Local1 + (Local2 * Local3))
1069 + Local3 = (((Local1 + TEST) + 0x20) * ToBCD (Local1))
1070 +
1071 +
1072 +----------------------------------------
1073 +26 September 2014. Summary of changes for version 20140926:
1074 +
1075 +1) ACPICA kernel-resident subsystem:
1076 +
1077 +Updated the GPIO operation region handler interface (GeneralPurposeIo).
1078 +In order to support GPIO Connection objects with multiple pins, along
1079 +with the related Field objects, the following changes to the interface
1080 +have been made: The Address is now defined to be the offset in bits of
1081 +the field unit from the previous invocation of a Connection. It can be
1082 +viewed as a "Pin Number Index" into the connection resource descriptor.
1083 +The BitWidth is the exact bit width of the field. It is usually one bit,
1084 +but not always. See the ACPICA reference guide (section 8.8.6.2.1) for
1085 +additional information and examples.
1086 +
1087 +GPE support: During ACPICA/GPE initialization, ensure that all GPEs with
1088 +corresponding _Lxx/_Exx methods are disabled (they may have been enabled
1089 +by the firmware), so that they cannot fire until they are enabled via
1090 +AcpiUpdateAllGpes. Rafael J. Wysocki.
1091 +
1092 +Added a new return flag for the Event/GPE status interfaces --
1093 +AcpiGetEventStatus and AcpiGetGpeStatus. The new
1094 +ACPI_EVENT_FLAGS_HAS_HANDLER flag is used to indicate that the event or
1095 +GPE currently has a handler associated with it, and can thus actually
1096 +affect the system. Lv Zheng.
1097 +
1098 +Example Code and Data Size: These are the sizes for the OS-independent
1099 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1100 +debug version of the code includes the debug output trace mechanism and
1101 +has a much larger code and data size.
1102 +
1103 + Current Release:
1104 + Non-Debug Version: 99.1K Code, 27.3K Data, 126.4K Total
1105 + Debug Version: 192.8K Code, 79.9K Data, 272.7K Total
1106 + Previous Release:
1107 + Non-Debug Version: 98.8K Code, 27.3K Data, 126.1K Total
1108 + Debug Version: 192.1K Code, 79.8K Data, 271.9K Total
1109 +
1110 +2) iASL Compiler/Disassembler and Tools:
1111 +
1112 +iASL: Fixed a memory allocation/free regression introduced in 20140828
1113 +that could cause the compiler to crash. This was introduced inadvertently
1114 +during the effort to eliminate compiler memory leaks. ACPICA BZ 1111,
1115 +1113.
1116 +
1117 +iASL: Removed two error messages that have been found to create false
1118 +positives, until they can be fixed and fully validated (ACPICA BZ 1112):
1119 +1) Illegal forward reference within a method
1120 +2) Illegal reference across two methods
1121 +
1122 +iASL: Implemented a new option (-lm) to create a hardware mapping file
1123 +that summarizes all GPIO, I2C, SPI, and UART connections. This option
1124 +works for both the compiler and disassembler. See the iASL compiler user
1125 +guide for additional information and examples (section 6.4.6).
1126 +
1127 +AcpiDump: Added support for the version 1 (ACPI 1.0) RSDP in addition to
1128 +version 2. This corrects the AE_BAD_HEADER exception seen on systems with
1129 +a version 1 RSDP. Lv Zheng ACPICA BZ 1097.
1130 +
1131 +AcpiExec: For Unix versions, don't attempt to put STDIN into raw mode
1132 +unless STDIN is actually a terminal. Assists with batch-mode processing.
1133 +ACPICA BZ 1114.
1134 +
1135 +Disassembler/AcpiHelp: Added another large group of recognized _HID
1136 +values.
1137 +
1138 +
1139 +----------------------------------------
1140 +28 August 2014. Summary of changes for version 20140828:
1141 +
1142 +1) ACPICA kernel-resident subsystem:
1143 +
1144 +Fixed a problem related to the internal use of the Timer() operator where
1145 +a 64-bit divide could cause an attempted link to a double-precision math
1146 +library. This divide is not actually necessary, so the code was
1147 +restructured to eliminate it. Lv Zheng.
1148 +
1149 +ACPI 5.1: Added support for the runtime validation of the _DSD package
1150 +(similar to the iASL support).
1151 +
1152 +ACPI 5.1/Headers: Added support for the GICC affinity subtable to the
1153 +SRAT table. Hanjun Guo <hanjun.guo@linaro.org>.
1154 +
1155 +Example Code and Data Size: These are the sizes for the OS-independent
1156 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1157 +debug version of the code includes the debug output trace mechanism and
1158 +has a much larger code and data size.
1159 +
1160 + Current Release:
1161 + Non-Debug Version: 98.8K Code, 27.3K Data, 126.1K Total
1162 + Debug Version: 192.1K Code, 79.8K Data, 271.9K Total
1163 + Previous Release:
1164 + Non-Debug Version: 98.7K Code, 27.3K Data, 126.0K Total1
1165 + Debug Version: 192.0K Code, 79.7K Data, 271.7K Total
1166 +
1167 +2) iASL Compiler/Disassembler and Tools:
1168 +
1169 +AcpiExec: Fixed a problem on unix systems where the original terminal
1170 +state was not always properly restored upon exit. Seen when using the -v
1171 +option. ACPICA BZ 1104.
1172 +
1173 +iASL: Fixed a problem with the validation of the ranges/length within the
1174 +Memory24 resource descriptor. There was a boundary condition when the
1175 +range was equal to the (length -1) caused by the fact that these values
1176 +are defined in 256-byte blocks, not bytes. ACPICA BZ 1098
1177 +
1178 +Disassembler: Fixed a problem with the GpioInt descriptor interrupt
1179 +polarity
1180 +flags. The flags are actually 2 bits, not 1, and the "ActiveBoth" keyword
1181 +is
1182 +now supported properly.
1183 +
1184 +ACPI 5.1: Added the GICC affinity subtable to the SRAT table. Supported
1185 +in the disassembler, data table compiler, and table template generator.
1186 +
1187 +iASL: Added a requirement for Device() objects that one of either a _HID
1188 +or _ADR must exist within the scope of a Device, as per the ACPI
1189 +specification. Remove a similar requirement that was incorrectly in place
1190 +for the _DSD object.
1191 +
1192 +iASL: Added error detection for illegal named references within control
1193 +methods that would cause runtime failures. Now trapped as errors are: 1)
1194 +References to objects within a non-parent control method. 2) Forward
1195 +references (within a method) -- for control methods, AML interpreters use
1196 +a one-pass parse of control methods. ACPICA BZ 1008.
1197 +
1198 +iASL: Added error checking for dependencies related to the _PSx power
1199 +methods. ACPICA BZ 1029.
1200 +1) For _PS0, one of these must exist within the same scope: _PS1, _PS2,
1201 +_PS3.
1202 +2) For _PS1, _PS2, and PS3: A _PS0 object must exist within the same
1203 +scope.
1204 +
1205 +iASL and table compiler: Cleanup miscellaneous memory leaks by fully
1206 +deploying the existing object and string caches and adding new caches for
1207 +the table compiler.
1208 +
1209 +iASL: Split the huge parser source file into multiple subfiles to improve
1210 +manageability. Generation now requires the M4 macro preprocessor, which
1211 +is part of the Bison distribution on both unix and windows platforms.
1212 +
1213 +AcpiSrc: Fixed and removed all extraneous warnings generated during
1214 +entire ACPICA source code scan and/or conversion.
1215 +
1216 +
1217 +----------------------------------------
1218 +
1219 +24 July 2014. Summary of changes for version 20140724:
1220 +
1221 +The ACPI 5.1 specification has been released and is available at:
1222 +http://uefi.org/specs/access
1223 +
1224 +
1225 +0) ACPI 5.1 support in ACPICA:
1226 +
1227 +ACPI 5.1 is fully supported in ACPICA as of this release.
1228 +
1229 +New predefined names. Support includes iASL and runtime ACPICA
1230 +validation.
1231 + _CCA (Cache Coherency Attribute).
1232 + _DSD (Device-Specific Data). David Box.
1233 +
1234 +Modifications to existing ACPI tables. Support includes headers, iASL
1235 +Data Table compiler, disassembler, and the template generator.
1236 + FADT - New fields and flags. Graeme Gregory.
1237 + GTDT - One new subtable and new fields. Tomasz Nowicki.
1238 + MADT - Two new subtables. Tomasz Nowicki.
1239 + PCCT - One new subtable.
1240 +
1241 +Miscellaneous.
1242 + New notification type for System Resource Affinity change events.
1243 +
1244 +
1245 +1) ACPICA kernel-resident subsystem:
1246 +
1247 +Fixed a regression introduced in 20140627 where a fault can happen during
1248 +the deletion of Alias AML namespace objects. The problem affected both
1249 +the core ACPICA and the ACPICA tools including iASL and AcpiExec.
1250 +
1251 +Implemented a new GPE public interface, AcpiMarkGpeForWake. Provides a
1252 +simple mechanism to enable wake GPEs that have no associated handler or
1253 +control method. Rafael Wysocki.
1254 +
1255 +Updated the AcpiEnableGpe interface to disallow the enable if there is no
1256 +handler or control method associated with the particular GPE. This will
1257 +help avoid meaningless GPEs and even GPE floods. Rafael Wysocki.
1258 +
1259 +Updated GPE handling and dispatch by disabling the GPE before clearing
1260 +the status bit for edge-triggered GPEs. Lv Zheng.
1261 +
1262 +Added Timer() support to the AML Debug object. The current timer value is
1263 +now displayed with each invocation of (Store to) the debug object to
1264 +enable simple generation of execution times for AML code (method
1265 +execution for example.) ACPICA BZ 1093.
1266 +
1267 +Example Code and Data Size: These are the sizes for the OS-independent
1268 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1269 +debug version of the code includes the debug output trace mechanism and
1270 +has a much larger code and data size.
1271 +
1272 + Current Release:
1273 + Non-Debug Version: 98.7K Code, 27.3K Data, 126.0K Total
1274 + Debug Version: 192.0K Code, 79.7K Data, 271.7K Total
1275 + Previous Release:
1276 + Non-Debug Version: 98.7K Code, 27.2K Data, 125.9K Total
1277 + Debug Version: 191.7K Code, 79.6K Data, 271.3K Total
1278 +
1279 +
1280 +2) iASL Compiler/Disassembler and Tools:
1281 +
1282 +Fixed an issue with the recently added local printf implementation,
1283 +concerning width/precision specifiers that could cause incorrect output.
1284 +Lv Zheng. ACPICA BZ 1094.
1285 +
1286 +Disassembler: Added support to detect buffers that contain UUIDs and
1287 +disassemble them to an invocation of the ToUUID operator. Also emit
1288 +commented descriptions of known ACPI-related UUIDs.
1289 +
1290 +AcpiHelp: Added support to display known ACPI-related UUIDs. New option,
1291 +-u. Adds three new files.
1292 +
1293 +iASL: Update table compiler and disassembler for DMAR table changes that
1294 +were introduced in September 2013. With assistance by David Woodhouse.
1295 +
1296 +----------------------------------------
1297 +27 June 2014. Summary of changes for version 20140627:
1298 +
1299 +1) ACPICA kernel-resident subsystem:
1300 +
1301 +Formatted Output: Implemented local versions of standard formatted output
1302 +utilities such as printf, etc. Over time, it has been discovered that
1303 +there are in fact many portability issues with printf, and the addition
1304 +of this feature will fix/prevent these issues once and for all. Some
1305 +known issues are summarized below:
1306 +
1307 +1) Output of 64-bit values is not portable. For example, UINT64 is %ull
1308 +for the Linux kernel and is %uI64 for some MSVC versions.
1309 +2) Invoking printf consistently in a manner that is portable across both
1310 +32-bit and 64-bit platforms is difficult at best in many situations.
1311 +3) The output format for pointers varies from system to system (leading
1312 +zeros especially), and leads to inconsistent output from ACPICA across
1313 +platforms.
1314 +4) Certain platform-specific printf formats may conflict with ACPICA use.
1315 +5) If there is no local C library available, ACPICA now has local support
1316 +for printf.
1317 +
1318 +-- To address these printf issues in a complete manner, ACPICA now
1319 +directly implements a small subset of printf format specifiers, only
1320 +those that it requires. Adds a new file, utilities/utprint.c. Lv Zheng.
1321 +
1322 +Implemented support for ACPICA generation within the EFI environment.
1323 +Initially, the AcpiDump utility is supported in the UEFI shell
1324 +environment. Lv Zheng.
1325 +
1326 +Added a new external interface, AcpiLogError, to improve ACPICA
1327 +portability. This allows the host to redirect error messages from the
1328 +ACPICA utilities. Lv Zheng.
1329 +
1330 +Added and deployed new OSL file I/O interfaces to improve ACPICA
1331 +portability:
1332 + AcpiOsOpenFile
1333 + AcpiOsCloseFile
1334 + AcpiOsReadFile
1335 + AcpiOsWriteFile
1336 + AcpiOsGetFileOffset
1337 + AcpiOsSetFileOffset
1338 +There are C library implementations of these functions in the new file
1339 +service_layers/oslibcfs.c -- however, the functions can be implemented by
1340 +the local host in any way necessary. Lv Zheng.
1341 +
1342 +Implemented a mechanism to disable/enable ACPI table checksum validation
1343 +at runtime. This can be useful when loading tables very early during OS
1344 +initialization when it may not be possible to map the entire table in
1345 +order to compute the checksum. Lv Zheng.
1346 +
1347 +Fixed a buffer allocation issue for the Generic Serial Bus support.
1348 +Originally, a fixed buffer length was used. This change allows for
1349 +variable-length buffers based upon the protocol indicated by the field
1350 +access attributes. Reported by Lan Tianyu. Lv Zheng.
1351 +
1352 +Fixed a problem where an object detached from a namespace node was not
1353 +properly terminated/cleared and could cause a circular list problem if
1354 +reattached. ACPICA BZ 1063. David Box.
1355 +
1356 +Fixed a possible recursive lock acquisition in hwregs.c. Rakib Mullick.
1357 +
1358 +Fixed a possible memory leak in an error return path within the function
1359 +AcpiUtCopyIobjectToIobject. ACPICA BZ 1087. Colin Ian King.
1360 +
1361 +Example Code and Data Size: These are the sizes for the OS-independent
1362 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1363 +debug version of the code includes the debug output trace mechanism and
1364 +has a much larger code and data size.
1365 +
1366 + Current Release:
1367 + Non-Debug Version: 98.7K Code, 27.2K Data, 125.9K Total
1368 + Debug Version: 191.7K Code, 79.6K Data, 271.3K Total
1369 + Previous Release:
1370 + Non-Debug Version: 96.8K Code, 27.2K Data, 124.0K Total
1371 + Debug Version: 189.5K Code, 79.7K Data, 269.2K Total
1372 +
1373 +
1374 +2) iASL Compiler/Disassembler and Tools:
1375 +
1376 +Disassembler: Add dump of ASCII equivalent text within a comment at the
1377 +end of each line of the output for the Buffer() ASL operator.
1378 +
1379 +AcpiDump: Miscellaneous changes:
1380 + Fixed repetitive table dump in -n mode.
1381 + For older EFI platforms, use the ACPI 1.0 GUID during RSDP search if
1382 +the ACPI 2.0 GUID fails.
1383 +
1384 +iASL: Fixed a problem where the compiler could fault if incorrectly given
1385 +an acpidump output file as input. ACPICA BZ 1088. David Box.
1386 +
1387 +AcpiExec/AcpiNames: Fixed a problem where these utilities could fault if
1388 +they are invoked without any arguments.
1389 +
1390 +Debugger: Fixed a possible memory leak in an error return path. ACPICA BZ
1391 +1086. Colin Ian King.
1392 +
1393 +Disassembler: Cleaned up a block of code that extracts a parent Op
1394 +object. Added a comment that explains that the parent is guaranteed to be
1395 +valid in this case. ACPICA BZ 1069.
1396 +
1397 +
1398 +----------------------------------------
1399 +24 April 2014. Summary of changes for version 20140424:
1400 +
1401 +1) ACPICA kernel-resident subsystem:
1402 +
1403 +Implemented support to skip/ignore NULL address entries in the RSDT/XSDT.
1404 +Some of these tables are known to contain a trailing NULL entry. Lv
1405 +Zheng.
1406 +
1407 +Removed an extraneous error message for the case where there are a large
1408 +number of system GPEs (> 124). This was the "32-bit FADT register is too
1409 +long to convert to GAS struct" message, which is irrelevant for GPEs
1410 +since the GPEx_BLK_LEN fields of the FADT are always used instead of the
1411 +(limited capacity) GAS bit length. Also, several changes to ensure proper
1412 +support for GPE numbers > 255, where some "GPE number" fields were 8-bits
1413 +internally.
1414 +
1415 +Implemented and deployed additional configuration support for the public
1416 +ACPICA external interfaces. Entire classes of interfaces can now be
1417 +easily modified or configured out, replaced by stubbed inline functions
1418 +by default. Lv Zheng.
1419 +
1420 +Moved all public ACPICA runtime configuration globals to the public
1421 +ACPICA external interface file for convenience. Also, removed some
1422 +obsolete/unused globals. See the file acpixf.h. Lv Zheng.
1423 +
1424 +Documentation: Added a new section to the ACPICA reference describing the
1425 +maximum number of GPEs that can be supported by the FADT-defined GPEs in
1426 +block zero and one. About 1200 total. See section 4.4.1 of the ACPICA
1427 +reference.
1428 +
1429 +Example Code and Data Size: These are the sizes for the OS-independent
1430 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1431 +debug version of the code includes the debug output trace mechanism and
1432 +has a much larger code and data size.
1433 +
1434 + Current Release:
1435 + Non-Debug Version: 96.8K Code, 27.2K Data, 124.0K Total
1436 + Debug Version: 189.5K Code, 79.7K Data, 269.2K Total
1437 + Previous Release:
1438 + Non-Debug Version: 97.0K Code, 27.2K Data, 124.2K Total
1439 + Debug Version: 189.7K Code, 79.5K Data, 269.2K Total
1440 +
1441 +
1442 +2) iASL Compiler/Disassembler and Tools:
1443 +
1444 +iASL and disassembler: Add full support for the LPIT table (Low Power
1445 +Idle Table). Includes support in the disassembler, data table compiler,
1446 +and template generator.
1447 +
1448 +AcpiDump utility:
1449 +1) Add option to force the use of the RSDT (over the XSDT).
1450 +2) Improve validation of the RSDP signature (use 8 chars instead of 4).
1451 +
1452 +iASL: Add check for predefined packages that are too large. For
1453 +predefined names that contain subpackages, check if each subpackage is
1454 +too large. (Check for too small already exists.)
1455 +
1456 +Debugger: Updated the GPE command (which simulates a GPE by executing the
1457 +GPE code paths in ACPICA). The GPE device is now optional, and defaults
1458 +to the GPE 0/1 FADT-defined blocks.
1459 +
1460 +Unix application OSL: Update line-editing support. Add additional error
1461 +checking and take care not to reset terminal attributes on exit if they
1462 +were never set. This should help guarantee that the terminal is always
1463 +left in the previous state on program exit.
1464 +
1465 +
1466 +----------------------------------------
1467 +25 March 2014. Summary of changes for version 20140325:
1468 +
1469 +1) ACPICA kernel-resident subsystem:
1470 +
1471 +Updated the auto-serialize feature for control methods. This feature
1472 +automatically serializes all methods that create named objects in order
1473 +to prevent runtime errors. The update adds support to ignore the
1474 +currently executing AML SyncLevel when invoking such a method, in order
1475 +to prevent disruption of any existing SyncLevel priorities that may exist
1476 +in the AML code. Although the use of SyncLevels is relatively rare, this
1477 +change fixes a regression where an AE_AML_MUTEX_ORDER exception can
1478 +appear on some machines starting with the 20140214 release.
1479 +
1480 +Added a new external interface to allow the host to install ACPI tables
1481 +very early, before the namespace is even created. AcpiInstallTable gives
1482 +the host additional flexibility for ACPI table management. Tables can be
1483 +installed directly by the host as if they had originally appeared in the
1484 +XSDT/RSDT. Installed tables can be SSDTs or other ACPI data tables
1485 +(anything except the DSDT and FACS). Adds a new file, tbdata.c, along
1486 +with additional internal restructuring and cleanup. See the ACPICA
1487 +Reference for interface details. Lv Zheng.
1488 +
1489 +Added validation of the checksum for all incoming dynamically loaded
1490 +tables (via external interfaces or via AML Load/LoadTable operators). Lv
1491 +Zheng.
1492 +
1493 +Updated the use of the AcpiOsWaitEventsComplete interface during Notify
1494 +and GPE handler removal. Restructured calls to eliminate possible race
1495 +conditions. Lv Zheng.
1496 +
1497 +Added a warning for the use/execution of the ASL/AML Unload (table)
1498 +operator. This will help detect and identify machines that use this
1499 +operator if and when it is ever used. This operator has never been seen
1500 +in the field and the usage model and possible side-effects of the drastic
1501 +runtime action of a full table removal are unknown.
1502 +
1503 +Reverted the use of #pragma push/pop which was introduced in the 20140214
1504 +release. It appears that push and pop are not implemented by enough
1505 +compilers to make the use of this feature feasible for ACPICA at this
1506 +time. However, these operators may be deployed in a future ACPICA
1507 +release.
1508 +
1509 +Added the missing EXPORT_SYMBOL macros for the install and remove SCI
1510 +handler interfaces.
1511 +
1512 +Source code generation:
1513 +1) Disabled the use of the "strchr" macro for the gcc-specific
1514 +generation. For some versions of gcc, this macro can periodically expose
1515 +a compiler bug which in turn causes compile-time error(s).
1516 +2) Added support for PPC64 compilation. Colin Ian King.
1517 +
1518 +Example Code and Data Size: These are the sizes for the OS-independent
1519 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1520 +debug version of the code includes the debug output trace mechanism and
1521 +has a much larger code and data size.
1522 +
1523 + Current Release:
1524 + Non-Debug Version: 97.0K Code, 27.2K Data, 124.2K Total
1525 + Debug Version: 189.7K Code, 79.5K Data, 269.2K Total
1526 + Previous Release:
1527 + Non-Debug Version: 96.5K Code, 27.2K Data, 123.7K Total
1528 + Debug Version: 188.6K Code, 79.0K Data, 267.6K Total
1529 +
1530 +
1531 +2) iASL Compiler/Disassembler and Tools:
1532 +
1533 +Disassembler: Added several new features to improve the readability of
1534 +the resulting ASL code. Extra information is emitted within comment
1535 +fields in the ASL code:
1536 +1) Known _HID/_CID values are decoded to descriptive text.
1537 +2) Standard values for the Notify() operator are decoded to descriptive
1538 +text.
1539 +3) Target operands are expanded to full pathnames (in a comment) when
1540 +possible.
1541 +
1542 +Disassembler: Miscellaneous updates for extern() handling:
1543 +1) Abort compiler if file specified by -fe option does not exist.
1544 +2) Silence unnecessary warnings about argument count mismatches.
1545 +3) Update warning messages concerning unresolved method externals.
1546 +4) Emit "UnknownObj" keyword for externals whose type cannot be
1547 +determined.
1548 +
1549 +AcpiHelp utility:
1550 +1) Added the -a option to display both the ASL syntax and the AML
1551 +encoding for an input ASL operator. This effectively displays all known
1552 +information about an ASL operator with one AcpiHelp invocation.
1553 +2) Added substring match support (similar to a wildcard) for the -i
1554 +(_HID/PNP IDs) option.
1555 +
1556 +iASL/Disassembler: Since this tool does not yet support execution on big-
1557 +endian machines, added detection of endianness and an error message if
1558 +execution is attempted on big-endian. Support for big-endian within iASL
1559 +is a feature that is on the ACPICA to-be-done list.
1560 +
1561 +AcpiBin utility:
1562 +1) Remove option to extract binary files from an acpidump; this function
1563 +is made obsolete by the AcpiXtract utility.
1564 +2) General cleanup of open files and allocated buffers.
1565 +
1566 +
1567 +----------------------------------------
1568 +14 February 2014. Summary of changes for version 20140214:
1569 +
1570 +1) ACPICA kernel-resident subsystem:
1571 +
1572 +Implemented a new mechanism to proactively prevent problems with ill-
1573 +behaved reentrant control methods that create named ACPI objects. This
1574 +behavior is illegal as per the ACPI specification, but is nonetheless
1575 +frequently seen in the field. Previously, this could lead to an
1576 +AE_ALREADY_EXISTS exception if the method was actually entered by more
1577 +than one thread. This new mechanism detects such methods at table load
1578 +time and marks them "serialized" to prevent reentrancy. A new global
1579 +option, AcpiGbl_AutoSerializeMethods, has been added to disable this
1580 +feature if desired. This mechanism and global option obsoletes and
1581 +supersedes the previous AcpiGbl_SerializeAllMethods option.
1582 +
1583 +Added the "Windows 2013" string to the _OSI support. ACPICA will now
1584 +respond TRUE to _OSI queries with this string. It is the stated policy of
1585 +ACPICA to add new strings to the _OSI support as soon as possible after
1586 +they are defined. See the full ACPICA _OSI policy which has been added to
1587 +the utilities/utosi.c file.
1588 +
1589 +Hardened/updated the _PRT return value auto-repair code:
1590 +1) Do not abort the repair on a single subpackage failure, continue to
1591 +check all subpackages.
1592 +2) Add check for the minimum subpackage length (4).
1593 +3) Properly handle extraneous NULL package elements.
1594 +
1595 +Added support to avoid the possibility of infinite loops when traversing
1596 +object linked lists. Never allow an infinite loop, even in the face of
1597 +corrupted object lists.
1598 +
1599 +ACPICA headers: Deployed the use of #pragma pack(push) and #pragma
1600 +pack(pop) directives to ensure that the ACPICA headers are independent of
1601 +compiler settings or other host headers.
1602 +
1603 +Example Code and Data Size: These are the sizes for the OS-independent
1604 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1605 +debug version of the code includes the debug output trace mechanism and
1606 +has a much larger code and data size.
1607 +
1608 + Current Release:
1609 + Non-Debug Version: 96.5K Code, 27.2K Data, 123.7K Total
1610 + Debug Version: 188.6K Code, 79.0K Data, 267.6K Total
1611 + Previous Release:
1612 + Non-Debug Version: 96.2K Code, 27.0K Data, 123.2K Total
1613 + Debug Version: 187.5K Code, 78.3K Data, 265.8K Total
1614 +
1615 +
1616 +2) iASL Compiler/Disassembler and Tools:
1617 +
1618 +iASL/Table-compiler: Fixed a problem with support for the SPMI table. The
1619 +first reserved field was incorrectly forced to have a value of zero. This
1620 +change correctly forces the field to have a value of one. ACPICA BZ 1081.
1621 +
1622 +Debugger: Added missing support for the "Extra" and "Data" subobjects
1623 +when displaying object data.
1624 +
1625 +Debugger: Added support to display entire object linked lists when
1626 +displaying object data.
1627 +
1628 +iASL: Removed the obsolete -g option to obtain ACPI tables from the
1629 +Windows registry. This feature has been superseded by the acpidump
1630 +utility.
1631 +
1632 +
1633 +----------------------------------------
1634 +14 January 2014. Summary of changes for version 20140114:
1635 +
1636 +1) ACPICA kernel-resident subsystem:
1637 +
1638 +Updated all ACPICA copyrights and signons to 2014. Added the 2014
1639 +copyright to all module headers and signons, including the standard Linux
1640 +header. This affects virtually every file in the ACPICA core subsystem,
1641 +iASL compiler, all ACPICA utilities, and the test suites.
1642 +
1643 +Improved parameter validation for AcpiInstallGpeBlock. Added the
1644 +following checks:
1645 +1) The incoming device handle refers to type ACPI_TYPE_DEVICE.
1646 +2) There is not already a GPE block attached to the device.
1647 +Likewise, with AcpiRemoveGpeBlock, ensure that the incoming object is a
1648 +device.
1649 +
1650 +Correctly support "references" in the ACPI_OBJECT. This change fixes the
1651 +support to allow references (namespace nodes) to be passed as arguments
1652 +to control methods via the evaluate object interface. This is probably
1653 +most useful for testing purposes, however.
1654 +
1655 +Improved support for 32/64 bit physical addresses in printf()-like
1656 +output. This change improves the support for physical addresses in printf
1657 +debug statements and other output on both 32-bit and 64-bit hosts. It
1658 +consistently outputs the appropriate number of bytes for each host. The
1659 +%p specifier is unsatisfactory since it does not emit uniform output on
1660 +all hosts/clib implementations (on some, leading zeros are not supported,
1661 +leading to difficult-to-read output).
1662 +
1663 +Example Code and Data Size: These are the sizes for the OS-independent
1664 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1665 +debug version of the code includes the debug output trace mechanism and
1666 +has a much larger code and data size.
1667 +
1668 + Current Release:
1669 + Non-Debug Version: 96.2K Code, 27.0K Data, 123.2K Total
1670 + Debug Version: 187.5K Code, 78.3K Data, 265.8K Total
1671 + Previous Release:
1672 + Non-Debug Version: 96.1K Code, 27.0K Data, 123.1K Total
1673 + Debug Version: 185.6K Code, 77.3K Data, 262.9K Total
1674 +
1675 +
1676 +2) iASL Compiler/Disassembler and Tools:
1677 +
1678 +iASL: Fix a possible fault when using the Connection() operator. Fixes a
1679 +problem if the parent Field definition for the Connection operator refers
1680 +to an operation region that does not exist. ACPICA BZ 1064.
1681 +
1682 +AcpiExec: Load of local test tables is now optional. The utility has the
1683 +capability to load some various tables to test features of ACPICA.
1684 +However, there are enough of them that the output of the utility became
1685 +confusing. With this change, only the required local tables are displayed
1686 +(RSDP, XSDT, etc.) along with the actual tables loaded via the command
1687 +line specification. This makes the default output simler and easier to
1688 +understand. The -el command line option restores the original behavior
1689 +for testing purposes.
1690 +
1691 +AcpiExec: Added support for overlapping operation regions. This change
1692 +expands the simulation of operation regions by supporting regions that
1693 +overlap within the given address space. Supports SystemMemory and
1694 +SystemIO. ASLTS test suite updated also. David Box. ACPICA BZ 1031.
1695 +
1696 +AcpiExec: Added region handler support for PCI_Config and EC spaces. This
1697 +allows AcpiExec to simulate these address spaces, similar to the current
1698 +support for SystemMemory and SystemIO.
1699 +
1700 +Debugger: Added new command to read/write/compare all namespace objects.
1701 +The command "test objects" will exercise the entire namespace by writing
1702 +new values to each data object, and ensuring that the write was
1703 +successful. The original value is then restored and verified.
1704 +
1705 +Debugger: Added the "test predefined" command. This change makes this
1706 +test public and puts it under the new "test" command. The test executes
1707 +each and every predefined name within the current namespace.
1708 +
1709 +
1710 +----------------------------------------
1711 +18 December 2013. Summary of changes for version 20131218:
1712 +
1713 +Global note: The ACPI 5.0A specification was released this month. There
1714 +are no changes needed for ACPICA since this release of ACPI is an
1715 +errata/clarification release. The specification is available at
1716 +acpi.info.
1717 +
1718 +
1719 +1) ACPICA kernel-resident subsystem:
1720 +
1721 +Added validation of the XSDT root table if it is present. Some older
1722 +platforms contain an XSDT that is ill-formed or otherwise invalid (such
1723 +as containing some or all entries that are NULL pointers). This change
1724 +adds a new function to validate the XSDT before actually using it. If the
1725 +XSDT is found to be invalid, ACPICA will now automatically fall back to
1726 +using the RSDT instead. Original implementation by Zhao Yakui. Ported to
1727 +ACPICA and enhanced by Lv Zheng and Bob Moore.
1728 +
1729 +Added a runtime option to ignore the XSDT and force the use of the RSDT.
1730 +This change adds a runtime option that will force ACPICA to use the RSDT
1731 +instead of the XSDT (AcpiGbl_DoNotUseXsdt). Although the ACPI spec
1732 +requires that an XSDT be used instead of the RSDT, the XSDT has been
1733 +found to be corrupt or ill-formed on some machines. Lv Zheng.
1734 +
1735 +Added a runtime option to favor 32-bit FADT register addresses over the
1736 +64-bit addresses. This change adds an option to favor 32-bit FADT
1737 +addresses when there is a conflict between the 32-bit and 64-bit versions
1738 +of the same register. The default behavior is to use the 64-bit version
1739 +in accordance with the ACPI specification. This can now be overridden via
1740 +the AcpiGbl_Use32BitFadtAddresses flag. ACPICA BZ 885. Lv Zheng.
1741 +
1742 +During the change above, the internal "Convert FADT" and "Verify FADT"
1743 +functions have been merged to simplify the code, making it easier to
1744 +understand and maintain. ACPICA BZ 933.
1745 +
1746 +Improve exception reporting and handling for GPE block installation.
1747 +Return an actual status from AcpiEvGetGpeXruptBlock and don't clobber the
1748 +status when exiting AcpiEvInstallGpeBlock. ACPICA BZ 1019.
1749 +
1750 +Added helper macros to extract bus/segment numbers from the HEST table.
1751 +This change adds two macros to extract the encoded bus and segment
1752 +numbers from the HEST Bus field - ACPI_HEST_BUS and ACPI_HEST_SEGMENT.
1753 +Betty Dall <betty.dall@hp.com>
1754 +
1755 +Removed the unused ACPI_FREE_BUFFER macro. This macro is no longer used
1756 +by ACPICA. It is not a public macro, so it should have no effect on
1757 +existing OSV code. Lv Zheng.
1758 +
1759 +Example Code and Data Size: These are the sizes for the OS-independent
1760 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1761 +debug version of the code includes the debug output trace mechanism and
1762 +has a much larger code and data size.
1763 +
1764 + Current Release:
1765 + Non-Debug Version: 96.1K Code, 27.0K Data, 123.1K Total
1766 + Debug Version: 185.6K Code, 77.3K Data, 262.9K Total
1767 + Previous Release:
1768 + Non-Debug Version: 95.9K Code, 27.0K Data, 122.9K Total
1769 + Debug Version: 185.1K Code, 77.2K Data, 262.3K Total
1770 +
1771 +
1772 +2) iASL Compiler/Disassembler and Tools:
1773 +
1774 +Disassembler: Improved pathname support for emitted External()
1775 +statements. This change adds full pathname support for external names
1776 +that have been resolved internally by the inclusion of additional ACPI
1777 +tables (via the iASL -e option). Without this change, the disassembler
1778 +can emit multiple externals for the same object, or it become confused
1779 +when the Scope() operator is used on an external object. Overall, greatly
1780 +improves the ability to actually recompile the emitted ASL code when
1781 +objects a referenced across multiple ACPI tables. Reported by Michael
1782 +Tsirkin (mst@redhat.com).
1783 +
1784 +Tests/ASLTS: Updated functional control suite to execute with no errors.
1785 +David Box. Fixed several errors related to the testing of the interpreter
1786 +slack mode. Lv Zheng.
1787 +
1788 +iASL: Added support to detect names that are declared within a control
1789 +method, but are unused (these are temporary names that are only valid
1790 +during the time the method is executing). A remark is issued for these
1791 +cases. ACPICA BZ 1022.
1792 +
1793 +iASL: Added full support for the DBG2 table. Adds full disassembler,
1794 +table compiler, and template generator support for the DBG2 table (Debug
1795 +Port 2 table).
1796 +
1797 +iASL: Added full support for the PCCT table, update the table definition.
1798 +Updates the PCCT table definition in the actbl3.h header and adds table
1799 +compiler and template generator support.
1800 +
1801 +iASL: Added an option to emit only error messages (no warnings/remarks).
1802 +The -ve option will enable only error messages, warnings and remarks are
1803 +suppressed. This can simplify debugging when only the errors are
1804 +important, such as when an ACPI table is disassembled and there are many
1805 +warnings and remarks -- but only the actual errors are of real interest.
1806 +
1807 +Example ACPICA code (source/tools/examples): Updated the example code so
1808 +that it builds to an actual working program, not just example code. Added
1809 +ACPI tables and execution of an example control method in the DSDT. Added
1810 +makefile support for Unix generation.
1811 +
1812 +
1813 +----------------------------------------
1814 +15 November 2013. Summary of changes for version 20131115:
1815 +
1816 +This release is available at https://acpica.org/downloads
1817 +
1818 +
1819 +1) ACPICA kernel-resident subsystem:
1820 +
1821 +Resource Manager: Fixed loop termination for the "get AML length"
1822 +function. The loop previously had an error termination on a NULL resource
1823 +pointer, which can never happen since the loop simply increments a valid
1824 +resource pointer. This fix changes the loop to terminate with an error on
1825 +an invalid end-of-buffer condition. The problem can be seen as an
1826 +infinite loop by callers to AcpiSetCurrentResources with an invalid or
1827 +corrupted resource descriptor, or a resource descriptor that is missing
1828 +an END_TAG descriptor. Reported by Dan Carpenter
1829 +<dan.carpenter@oracle.com>. Lv Zheng, Bob Moore.
1830 +
1831 +Table unload and ACPICA termination: Delete all attached data objects
1832 +during namespace node deletion. This fix updates namespace node deletion
1833 +to delete the entire list of attached objects (attached via
1834 +AcpiAttachObject) instead of just one of the attached items. ACPICA BZ
1835 +1024. Tomasz Nowicki (tomasz.nowicki@linaro.org).
1836 +
1837 +ACPICA termination: Added support to delete all objects attached to the
1838 +root namespace node. This fix deletes any and all objects that have been
1839 +attached to the root node via AcpiAttachData. Previously, none of these
1840 +objects were deleted. Reported by Tomasz Nowicki. ACPICA BZ 1026.
1841 +
1842 +Debug output: Do not emit the function nesting level for the in-kernel
1843 +build. The nesting level is really only useful during a single-thread
1844 +execution. Therefore, only enable this output for the AcpiExec utility.
1845 +Also, only emit the thread ID when executing under AcpiExec (Context
1846 +switches are still always detected and a message is emitted). ACPICA BZ
1847 +972.
1848 +
1849 +Example Code and Data Size: These are the sizes for the OS-independent
1850 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1851 +debug version of the code includes the debug output trace mechanism and
1852 +has a much larger code and data size.
1853 +
1854 + Current Release:
1855 + Non-Debug Version: 95.9K Code, 27.0K Data, 122.9K Total
1856 + Debug Version: 185.1K Code, 77.2K Data, 262.3K Total
1857 + Previous Release:
1858 + Non-Debug Version: 95.8K Code, 27.0K Data, 122.8K Total
1859 + Debug Version: 185.2K Code, 77.2K Data, 262.4K Total
1860 +
1861 +
1862 +2) iASL Compiler/Disassembler and Tools:
1863 +
1864 +AcpiExec/Unix-OSL: Use <termios.h> instead of <termio.h>. This is the
1865 +correct portable POSIX header for terminal control functions.
1866 +
1867 +Disassembler: Fixed control method invocation issues related to the use
1868 +of the CondRefOf() operator. The problem is seen in the disassembly where
1869 +control method invocations may not be disassembled properly if the
1870 +control method name has been used previously as an argument to CondRefOf.
1871 +The solution is to not attempt to emit an external declaration for the
1872 +CondRefOf target (it is not necessary in the first place). This prevents
1873 +disassembler object type confusion. ACPICA BZ 988.
1874 +
1875 +Unix Makefiles: Added an option to disable compiler optimizations and the
1876 +_FORTIFY_SOURCE flag. Some older compilers have problems compiling ACPICA
1877 +with optimizations (reportedly, gcc 4.4 for example). This change adds a
1878 +command line option for make (NOOPT) that disables all compiler
1879 +optimizations and the _FORTIFY_SOURCE compiler flag. The default
1880 +optimization is -O2 with the _FORTIFY_SOURCE flag specified. ACPICA BZ
1881 +1034. Lv Zheng, Bob Moore.
1882 +
1883 +Tests/ASLTS: Added options to specify individual test cases and modes.
1884 +This allows testers running aslts.sh to optionally specify individual
1885 +test modes and test cases. Also added an option to disable the forced
1886 +generation of the ACPICA tools from source if desired. Lv Zheng.
1887 +
1888 +----------------------------------------
1889 +27 September 2013. Summary of changes for version 20130927:
1890 +
1891 +This release is available at https://acpica.org/downloads
1892 +
1893 +
1894 +1) ACPICA kernel-resident subsystem:
1895 +
1896 +Fixed a problem with store operations to reference objects. This change
1897 +fixes a problem where a Store operation to an ArgX object that contained
1898 +a
1899 +reference to a field object did not complete the automatic dereference
1900 +and
1901 +then write to the actual field object. Instead, the object type of the
1902 +field object was inadvertently changed to match the type of the source
1903 +operand. The new behavior will actually write to the field object (buffer
1904 +field or field unit), thus matching the correct ACPI-defined behavior.
1905 +
1906 +Implemented support to allow the host to redefine individual OSL
1907 +prototypes. This change enables the host to redefine OSL prototypes found
1908 +in the acpiosxf.h file. This allows the host to implement OSL interfaces
1909 +with a macro or inlined function. Further, it allows the host to add any
1910 +additional required modifiers such as __iomem, __init, __exit, etc., as
1911 +necessary on a per-interface basis. Enables maximum flexibility for the
1912 +OSL interfaces. Lv Zheng.
1913 +
1914 +Hardcoded the access width for the FADT-defined reset register. The ACPI
1915 +specification requires the reset register width to be 8 bits. ACPICA now
1916 +hardcodes the width to 8 and ignores the FADT width value. This provides
1917 +compatibility with other ACPI implementations that have allowed BIOS code
1918 +with bad register width values to go unnoticed. Matthew Garett, Bob
1919 +Moore,
1920 +Lv Zheng.
1921 +
1922 +Changed the position/use of the ACPI_PRINTF_LIKE macro. This macro is
1923 +used
1924 +in the OSL header (acpiosxf). The change modifies the position of this
1925 +macro in each instance where it is used (AcpiDebugPrint, etc.) to avoid
1926 +build issues if the OSL defines the implementation of the interface to be
1927 +an inline stub function. Lv Zheng.
1928 +
1929 +Deployed a new macro ACPI_EXPORT_SYMBOL_INIT for the main ACPICA
1930 +initialization interfaces. This change adds a new macro for the main init
1931 +and terminate external interfaces in order to support hosts that require
1932 +additional or different processing for these functions. Changed from
1933 +ACPI_EXPORT_SYMBOL to ACPI_EXPORT_SYMBOL_INIT for these functions. Lv
1934 +Zheng, Bob Moore.
1935 +
1936 +Cleaned up the memory allocation macros for configurability. In the
1937 +common
1938 +case, the ACPI_ALLOCATE and related macros now resolve directly to their
1939 +respective AcpiOs* OSL interfaces. Two options:
1940 +1) The ACPI_ALLOCATE_ZEROED macro uses a simple local implementation by
1941 +default, unless overridden by the USE_NATIVE_ALLOCATE_ZEROED define.
1942 +2) For AcpiExec (and for debugging), the macros can optionally be
1943 +resolved
1944 +to the local ACPICA interfaces that track each allocation (local tracking
1945 +is used to immediately detect memory leaks).
1946 +Lv Zheng.
1947 +
1948 +Simplified the configuration for ACPI_REDUCED_HARDWARE. Allows the kernel
1949 +to predefine this macro to either TRUE or FALSE during the system build.
1950 +
1951 +Replaced __FUNCTION_ with __func__ in the gcc-specific header.
1952 +
1953 +Example Code and Data Size: These are the sizes for the OS-independent
1954 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1955 +debug version of the code includes the debug output trace mechanism and
1956 +has a much larger code and data size.
1957 +
1958 + Current Release:
1959 + Non-Debug Version: 95.8K Code, 27.0K Data, 122.8K Total
1960 + Debug Version: 185.2K Code, 77.2K Data, 262.4K Total
1961 + Previous Release:
1962 + Non-Debug Version: 96.7K Code, 27.1K Data, 123.9K Total
1963 + Debug Version: 184.4K Code, 76.8K Data, 261.2K Total
1964 +
1965 +
1966 +2) iASL Compiler/Disassembler and Tools:
1967 +
1968 +iASL: Implemented wildcard support for the -e option. This simplifies use
1969 +when there are many SSDTs that must be included to resolve external
1970 +method
1971 +declarations. ACPICA BZ 1041. Example:
1972 + iasl -e ssdt*.dat -d dsdt.dat
1973 +
1974 +AcpiExec: Add history/line-editing for Unix/Linux systems. This change
1975 +adds a portable module that implements full history and limited line
1976 +editing for Unix and Linux systems. It does not use readline() due to
1977 +portability issues. Instead it uses the POSIX termio interface to put the
1978 +terminal in raw input mode so that the various special keys can be
1979 +trapped
1980 +(such as up/down-arrow for history support and left/right-arrow for line
1981 +editing). Uses the existing debugger history mechanism. ACPICA BZ 1036.
1982 +
1983 +AcpiXtract: Add support to handle (ignore) "empty" lines containing only
1984 +one or more spaces. This provides compatible with early or different
1985 +versions of the AcpiDump utility. ACPICA BZ 1044.
1986 +
1987 +AcpiDump: Do not ignore tables that contain only an ACPI table header.
1988 +Apparently, some BIOSs create SSDTs that contain an ACPI table header but
1989 +no other data. This change adds support to dump these tables. Any tables
1990 +shorter than the length of an ACPI table header remain in error (an error
1991 +message is emitted). Reported by Yi Li.
1992 +
1993 +Debugger: Echo actual command along with the "unknown command" message.
1994 +
1995 +----------------------------------------
1996 +23 August 2013. Summary of changes for version 20130823:
1997 +
1998 +1) ACPICA kernel-resident subsystem:
1999 +
2000 +Implemented support for host-installed System Control Interrupt (SCI)
2001 +handlers. Certain ACPI functionality requires the host to handle raw
2002 +SCIs. For example, the "SCI Doorbell" that is defined for memory power
2003 +state support requires the host device driver to handle SCIs to examine
2004 +if the doorbell has been activated. Multiple SCI handlers can be
2005 +installed to allow for future expansion. New external interfaces are
2006 +AcpiInstallSciHandler, AcpiRemoveSciHandler; see the ACPICA reference for
2007 +details. Lv Zheng, Bob Moore. ACPICA BZ 1032.
2008 +
2009 +Operation region support: Never locally free the handler "context"
2010 +pointer. This change removes some dangerous code that attempts to free
2011 +the handler context pointer in some (rare) circumstances. The owner of
2012 +the handler owns this pointer and the ACPICA code should never touch it.
2013 +Although not seen to be an issue in any kernel, it did show up as a
2014 +problem (fault) under AcpiExec. Also, set the internal storage field for
2015 +the context pointer to zero when the region is deactivated, simply for
2016 +sanity. David Box. ACPICA BZ 1039.
2017 +
2018 +AcpiRead: On error, do not modify the return value target location. If an
2019 +error happens in the middle of a split 32/32 64-bit I/O operation, do not
2020 +modify the target of the return value pointer. Makes the code consistent
2021 +with the rest of ACPICA. Bjorn Helgaas.
2022 +
2023 +Example Code and Data Size: These are the sizes for the OS-independent
2024 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2025 +debug version of the code includes the debug output trace mechanism and
2026 +has a much larger code and data size.
2027 +
2028 + Current Release:
2029 + Non-Debug Version: 96.7K Code, 27.1K Data, 123.9K Total
2030 + Debug Version: 184.4K Code, 76.8K Data, 261.2K Total
2031 + Previous Release:
2032 + Non-Debug Version: 96.2K Code, 27.1K Data, 123.3K Total
2033 + Debug Version: 185.4K Code, 77.1K Data, 262.5K Total
2034 +
2035 +
2036 +2) iASL Compiler/Disassembler and Tools:
2037 +
2038 +AcpiDump: Implemented several new features and fixed some problems:
2039 +1) Added support to dump the RSDP, RSDT, and XSDT tables.
2040 +2) Added support for multiple table instances (SSDT, UEFI).
2041 +3) Added option to dump "customized" (overridden) tables (-c).
2042 +4) Fixed a problem where some table filenames were improperly
2043 +constructed.
2044 +5) Improved some error messages, removed some unnecessary messages.
2045 +
2046 +iASL: Implemented additional support for disassembly of ACPI tables that
2047 +contain invocations of external control methods. The -fe<file> option
2048 +allows the import of a file that specifies the external methods along
2049 +with the required number of arguments for each -- allowing for the
2050 +correct disassembly of the table. This is a workaround for a limitation
2051 +of AML code where the disassembler often cannot determine the number of
2052 +arguments required for an external control method and generates incorrect
2053 +ASL code. See the iASL reference for details. ACPICA BZ 1030.
2054 +
2055 +Debugger: Implemented a new command (paths) that displays the full
2056 +pathnames (namepaths) and object types of all objects in the namespace.
2057 +This is an alternative to the namespace command.
2058 +
2059 +Debugger: Implemented a new command (sci) that invokes the SCI dispatch
2060 +mechanism and any installed handlers.
2061 +
2062 +iASL: Fixed a possible segfault for "too many parent prefixes" condition.
2063 +This can occur if there are too many parent prefixes in a namepath (for
2064 +example, ^^^^^^PCI0.ECRD). ACPICA BZ 1035.
2065 +
2066 +Application OSLs: Set the return value for the PCI read functions. These
2067 +functions simply return AE_OK, but should set the return value to zero
2068 +also. This change implements this. ACPICA BZ 1038.
2069 +
2070 +Debugger: Prevent possible command line buffer overflow. Increase the
2071 +size of a couple of the debugger line buffers, and ensure that overflow
2072 +cannot happen. ACPICA BZ 1037.
2073 +
2074 +iASL: Changed to abort immediately on serious errors during the parsing
2075 +phase. Due to the nature of ASL, there is no point in attempting to
2076 +compile these types of errors, and they typically end up causing a
2077 +cascade of hundreds of errors which obscure the original problem.
2078 +
2079 +----------------------------------------
2080 +25 July 2013. Summary of changes for version 20130725:
2081 +
2082 +1) ACPICA kernel-resident subsystem:
2083 +
2084 +Fixed a problem with the DerefOf operator where references to FieldUnits
2085 +and BufferFields incorrectly returned the parent object, not the actual
2086 +value of the object. After this change, a dereference of a FieldUnit
2087 +reference results in a read operation on the field to get the value, and
2088 +likewise, the appropriate BufferField value is extracted from the target
2089 +buffer.
2090 +
2091 +Fixed a problem where the _WAK method could cause a fault under these
2092 +circumstances: 1) Interpreter slack mode was not enabled, and 2) the _WAK
2093 +method returned no value. The problem is rarely seen because most kernels
2094 +run ACPICA in slack mode.
2095 +
2096 +For the DerefOf operator, a fatal error now results if an attempt is made
2097 +to dereference a reference (created by the Index operator) to a NULL
2098 +package element. Provides compatibility with other ACPI implementations,
2099 +and this behavior will be added to a future version of the ACPI
2100 +specification.
2101 +
2102 +The ACPI Power Management Timer (defined in the FADT) is now optional.
2103 +This provides compatibility with other ACPI implementations and will
2104 +appear in the next version of the ACPI specification. If there is no PM
2105 +Timer on the platform, AcpiGetTimer returns AE_SUPPORT. An address of
2106 +zero in the FADT indicates no PM timer.
2107 +
2108 +Implemented a new interface for _OSI support, AcpiUpdateInterfaces. This
2109 +allows the host to globally enable/disable all vendor strings, all
2110 +feature strings, or both. Intended to be primarily used for debugging
2111 +purposes only. Lv Zheng.
2112 +
2113 +Expose the collected _OSI data to the host via a global variable. This
2114 +data tracks the highest level vendor ID that has been invoked by the BIOS
2115 +so that the host (and potentially ACPICA itself) can change behaviors
2116 +based upon the age of the BIOS.
2117 +
2118 +Example Code and Data Size: These are the sizes for the OS-independent
2119 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2120 +debug version of the code includes the debug output trace mechanism and
2121 +has a much larger code and data size.
2122 +
2123 + Current Release:
2124 + Non-Debug Version: 96.2K Code, 27.1K Data, 123.3K Total
2125 + Debug Version: 184.4K Code, 76.8K Data, 261.2K Total
2126 + Previous Release:
2127 + Non-Debug Version: 95.9K Code, 26.9K Data, 122.8K Total
2128 + Debug Version: 184.1K Code, 76.7K Data, 260.8K Total
2129 +
2130 +
2131 +2) iASL Compiler/Disassembler and Tools:
2132 +
2133 +iASL: Created the following enhancements for the -so option (create
2134 +offset table):
2135 +1)Add offsets for the last nameseg in each namepath for every supported
2136 +object type
2137 +2)Add support for Processor, Device, Thermal Zone, and Scope objects
2138 +3)Add the actual AML opcode for the parent object of every supported
2139 +object type
2140 +4)Add support for the ZERO/ONE/ONES AML opcodes for integer objects
2141 +
2142 +Disassembler: Emit all unresolved external symbols in a single block.
2143 +These are external references to control methods that could not be
2144 +resolved, and thus, the disassembler had to make a guess at the number of
2145 +arguments to parse.
2146 +
2147 +iASL: The argument to the -T option (create table template) is now
2148 +optional. If not specified, the default table is a DSDT, typically the
2149 +most common case.
2150 +
2151 +----------------------------------------
2152 +26 June 2013. Summary of changes for version 20130626:
2153 +
2154 +1) ACPICA kernel-resident subsystem:
2155 +
2156 +Fixed an issue with runtime repair of the _CST object. Null or invalid
2157 +elements were not always removed properly. Lv Zheng.
2158 +
2159 +Removed an arbitrary restriction of 256 GPEs per GPE block (such as the
2160 +FADT-defined GPE0 and GPE1). For GPE0, GPE1, and each GPE Block Device,
2161 +the maximum number of GPEs is 1016. Use of multiple GPE block devices
2162 +makes the system-wide number of GPEs essentially unlimited.
2163 +
2164 +Example Code and Data Size: These are the sizes for the OS-independent
2165 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2166 +debug version of the code includes the debug output trace mechanism and
2167 +has a much larger code and data size.
2168 +
2169 + Current Release:
2170 + Non-Debug Version: 95.9K Code, 26.9K Data, 122.8K Total
2171 + Debug Version: 184.1K Code, 76.7K Data, 260.8K Total
2172 + Previous Release:
2173 + Non-Debug Version: 96.0K Code, 27.0K Data, 123.0K Total
2174 + Debug Version: 184.1K Code, 76.8K Data, 260.9K Total
2175 +
2176 +
2177 +2) iASL Compiler/Disassembler and Tools:
2178 +
2179 +Portable AcpiDump: Implemented full support for the Linux and FreeBSD
2180 +hosts. Now supports Linux, FreeBSD, and Windows.
2181 +
2182 +Disassembler: Added some missing types for the HEST and EINJ tables: "Set
2183 +Error Type With Address", "CMCI", "MCE", and "Flush Cacheline".
2184 +
2185 +iASL/Preprocessor: Implemented full support for nested
2186 +#if/#else/#elif/#endif blocks. Allows arbitrary depth of nested blocks.
2187 +
2188 +Disassembler: Expanded maximum output string length to 64K. Was 256 bytes
2189 +max. The original purpose of this constraint was to limit the amount of
2190 +debug output. However, the string function in question (UtPrintString) is
2191 +now used for the disassembler also, where 256 bytes is insufficient.
2192 +Reported by RehabMan@GitHub.
2193 +
2194 +iASL/DataTables: Fixed some problems and issues with compilation of DMAR
2195 +tables. ACPICA BZ 999. Lv Zheng.
2196 +
2197 +iASL: Fixed a couple of error exit issues that could result in a "Could
2198 +not delete <file>" message during ASL compilation.
2199 +
2200 +AcpiDump: Allow "FADT" and "MADT" as valid table signatures, even though
2201 +the actual signatures for these tables are "FACP" and "APIC",
2202 +respectively.
2203 +
2204 +AcpiDump: Added support for multiple UEFI tables. Only SSDT and UEFI
2205 +tables are allowed to have multiple instances.
2206 +
2207 +----------------------------------------
2208 +17 May 2013. Summary of changes for version 20130517:
2209 +
2210 +1) ACPICA kernel-resident subsystem:
2211 +
2212 +Fixed a regression introduced in version 20130328 for _INI methods. This
2213 +change fixes a problem introduced in 20130328 where _INI methods are no
2214 +longer executed properly because of a memory block that was not
2215 +initialized correctly. ACPICA BZ 1016. Tomasz Nowicki
2216 +<tomasz.nowicki@linaro.org>.
2217 +
2218 +Fixed a possible problem with the new extended sleep registers in the
2219 +ACPI
2220 +5.0 FADT. Do not use these registers (even if populated) unless the HW-
2221 +reduced bit is set in the FADT (as per the ACPI specification). ACPICA BZ
2222 +1020. Lv Zheng.
2223 +
2224 +Implemented return value repair code for _CST predefined objects: Sort
2225 +the
2226 +list and detect/remove invalid entries. ACPICA BZ 890. Lv Zheng.
2227 +
2228 +Implemented a debug-only option to disable loading of SSDTs from the
2229 +RSDT/XSDT during ACPICA initialization. This can be useful for debugging
2230 +ACPI problems on some machines. Set AcpiGbl_DisableSsdtTableLoad in
2231 +acglobal.h - ACPICA BZ 1005. Lv Zheng.
2232 +
2233 +Fixed some issues in the ACPICA initialization and termination code:
2234 +Tomasz Nowicki <tomasz.nowicki@linaro.org>
2235 +1) Clear events initialized flag upon event component termination. ACPICA
2236 +BZ 1013.
2237 +2) Fixed a possible memory leak in GPE init error path. ACPICA BZ 1018.
2238 +3) Delete global lock pending lock during termination. ACPICA BZ 1012.
2239 +4) Clear debug buffer global on termination to prevent possible multiple
2240 +delete. ACPICA BZ 1010.
2241 +
2242 +Standardized all switch() blocks across the entire source base. After
2243 +many
2244 +years, different formatting for switch() had crept in. This change makes
2245 +the formatting of every switch block identical. ACPICA BZ 997. Chao Guan.
2246 +
2247 +Split some files to enhance ACPICA modularity and configurability:
2248 +1) Split buffer dump routines into utilities/utbuffer.c
2249 +2) Split internal error message routines into utilities/uterror.c
2250 +3) Split table print utilities into tables/tbprint.c
2251 +4) Split iASL command-line option processing into asloptions.c
2252 +
2253 +Makefile enhancements:
2254 +1) Support for all new files above.
2255 +2) Abort make on errors from any subcomponent. Chao Guan.
2256 +3) Add build support for Apple Mac OS X. Liang Qi.
2257 +
2258 +Example Code and Data Size: These are the sizes for the OS-independent
2259 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2260 +debug version of the code includes the debug output trace mechanism and
2261 +has a much larger code and data size.
2262 +
2263 + Current Release:
2264 + Non-Debug Version: 96.0K Code, 27.0K Data, 123.0K Total
2265 + Debug Version: 184.1K Code, 76.8K Data, 260.9K Total
2266 + Previous Release:
2267 + Non-Debug Version: 95.6K Code, 26.8K Data, 122.4K Total
2268 + Debug Version: 183.5K Code, 76.6K Data, 260.1K Total
2269 +
2270 +
2271 +2) iASL Compiler/Disassembler and Tools:
2272 +
2273 +New utility: Implemented an easily portable version of the acpidump
2274 +utility to extract ACPI tables from the system (or a file) in an ASCII
2275 +hex
2276 +dump format. The top-level code implements the various command line
2277 +options, file I/O, and table dump routines. To port to a new host, only
2278 +three functions need to be implemented to get tables -- since this
2279 +functionality is OS-dependent. See the tools/acpidump/apmain.c module and
2280 +the ACPICA reference for porting instructions. ACPICA BZ 859. Notes:
2281 +1) The Windows version obtains the ACPI tables from the Registry.
2282 +2) The Linux version is under development.
2283 +3) Other hosts - If an OS-dependent module is submitted, it will be
2284 +distributed with ACPICA.
2285 +
2286 +iASL: Fixed a regression for -D preprocessor option (define symbol). A
2287 +restructuring/change to the initialization sequence caused this option to
2288 +no longer work properly.
2289 +
2290 +iASL: Implemented a mechanism to disable specific warnings and remarks.
2291 +Adds a new command line option, "-vw <messageid> as well as "#pragma
2292 +disable <messageid>". ACPICA BZ 989. Chao Guan, Bob Moore.
2293 +
2294 +iASL: Fix for too-strict package object validation. The package object
2295 +validation for return values from the predefined names is a bit too
2296 +strict, it does not allow names references within the package (which will
2297 +be resolved at runtime.) These types of references cannot be validated at
2298 +compile time. This change ignores named references within package objects
2299 +for names that return or define static packages.
2300 +
2301 +Debugger: Fixed the 80-character command line limitation for the History
2302 +command. Now allows lines of arbitrary length. ACPICA BZ 1000. Chao Guan.
2303 +
2304 +iASL: Added control method and package support for the -so option
2305 +(generates AML offset table for BIOS support.)
2306 +
2307 +iASL: issue a remark if a non-serialized method creates named objects. If
2308 +a thread blocks within the method for any reason, and another thread
2309 +enters the method, the method will fail because an attempt will be made
2310 +to
2311 +create the same (named) object twice. In this case, issue a remark that
2312 +the method should be marked serialized. NOTE: may become a warning later.
2313 +ACPICA BZ 909.
2314 +
2315 +----------------------------------------
2316 +18 April 2013. Summary of changes for version 20130418:
2317 +
2318 +1) ACPICA kernel-resident subsystem:
2319 +
2320 +Fixed a possible buffer overrun during some rare but specific field unit
2321 +read operations. This overrun can only happen if the DSDT version is 1 --
2322 +meaning that all AML integers are 32 bits -- and the field length is
2323 +between 33 and 55 bits long. During the read, an internal buffer object
2324 +is
2325 +created for the field unit because the field is larger than an integer
2326 +(32
2327 +bits). However, in this case, the buffer will be incorrectly written
2328 +beyond the end because the buffer length is less than the internal
2329 +minimum
2330 +of 64 bits (8 bytes) long. The buffer will be either 5, 6, or 7 bytes
2331 +long, but a full 8 bytes will be written.
2332 +
2333 +Updated the Embedded Controller "orphan" _REG method support. This refers
2334 +to _REG methods under the EC device that have no corresponding operation
2335 +region. This is allowed by the ACPI specification. This update removes a
2336 +dependency on the existence an ECDT table. It will execute an orphan _REG
2337 +method as long as the operation region handler for the EC is installed at
2338 +the EC device node and not the namespace root. Rui Zhang (original
2339 +update), Bob Moore (update/integrate).
2340 +
2341 +Implemented run-time argument typechecking for all predefined ACPI names
2342 +(_STA, _BIF, etc.) This change performs object typechecking on all
2343 +incoming arguments for all predefined names executed via
2344 +AcpiEvaluateObject. This ensures that ACPI-related device drivers are
2345 +passing correct object types as well as the correct number of arguments
2346 +(therefore identifying any issues immediately). Also, the ASL/namespace
2347 +definition of the predefined name is checked against the ACPI
2348 +specification for the proper argument count. Adds one new file,
2349 +nsarguments.c
2350 +
2351 +Changed an exception code for the ASL UnLoad() operator. Changed the
2352 +exception code for the case where the input DdbHandle is invalid, from
2353 +AE_BAD_PARAMETER to the more appropriate AE_AML_OPERAND_TYPE.
2354 +
2355 +Unix/Linux makefiles: Removed the use of the -O2 optimization flag in the
2356 +global makefile. The use of this flag causes compiler errors on earlier
2357 +versions of GCC, so it has been removed for compatibility.
2358 +
2359 +Miscellaneous cleanup:
2360 +1) Removed some unused/obsolete macros
2361 +2) Fixed a possible memory leak in the _OSI support
2362 +3) Removed an unused variable in the predefined name support
2363 +4) Windows OSL: remove obsolete reference to a memory list field
2364 +
2365 +Example Code and Data Size: These are the sizes for the OS-independent
2366 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2367 +debug version of the code includes the debug output trace mechanism and
2368 +has a much larger code and data size.
2369 +
2370 + Current Release:
2371 + Non-Debug Version: 95.2K Code, 26.4K Data, 121.6K Total
2372 + Debug Version: 183.0K Code, 76.0K Data, 259.0K Total
2373 + Previous Release:
2374 + Non-Debug Version: 95.6K Code, 26.8K Data, 122.4K Total
2375 + Debug Version: 183.5K Code, 76.6K Data, 260.1K Total
2376 +
2377 +
2378 +2) iASL Compiler/Disassembler and Tools:
2379 +
2380 +AcpiExec: Added installation of a handler for the SystemCMOS address
2381 +space. This prevents control method abort if a method accesses this
2382 +space.
2383 +
2384 +AcpiExec: Added support for multiple EC devices, and now install EC
2385 +operation region handler(s) at the actual EC device instead of the
2386 +namespace root. This reflects the typical behavior of host operating
2387 +systems.
2388 +
2389 +AcpiExec: Updated to ensure that all operation region handlers are
2390 +installed before the _REG methods are executed. This prevents a _REG
2391 +method from aborting if it accesses an address space has no handler.
2392 +AcpiExec installs a handler for every possible address space.
2393 +
2394 +Debugger: Enhanced the "handlers" command to display non-root handlers.
2395 +This change enhances the handlers command to display handlers associated
2396 +with individual devices throughout the namespace, in addition to the
2397 +currently supported display of handlers associated with the root
2398 +namespace
2399 +node.
2400 +
2401 +ASL Test Suite: Several test suite errors have been identified and
2402 +resolved, reducing the total error count during execution. Chao Guan.
2403 +
2404 +----------------------------------------
2405 +28 March 2013. Summary of changes for version 20130328:
2406 +
2407 +1) ACPICA kernel-resident subsystem:
2408 +
2409 +Fixed several possible race conditions with the internal object reference
2410 +counting mechanism. Some of the external ACPICA interfaces update object
2411 +reference counts without holding the interpreter or namespace lock. This
2412 +change adds a spinlock to protect reference count updates on the internal
2413 +ACPICA objects. Reported by and with assistance from Andriy Gapon
2414 +(avg@FreeBSD.org).
2415 +
2416 +FADT support: Removed an extraneous warning for very large GPE register
2417 +sets. This change removes a size mismatch warning if the legacy length
2418 +field for a GPE register set is larger than the 64-bit GAS structure can
2419 +accommodate. GPE register sets can be larger than the 255-bit width
2420 +limitation of the GAS structure. Linn Crosetto (linn@hp.com).
2421 +
2422 +_OSI Support: handle any errors from AcpiOsAcquireMutex. Check for error
2423 +return from this interface. Handles a possible timeout case if
2424 +ACPI_WAIT_FOREVER is modified by the host to be a value less than
2425 +"forever". Jung-uk Kim.
2426 +
2427 +Predefined name support: Add allowed/required argument type information
2428 +to
2429 +the master predefined info table. This change adds the infrastructure to
2430 +enable typechecking on incoming arguments for all predefined
2431 +methods/objects. It does not actually contain the code that will fully
2432 +utilize this information, this is still under development. Also condenses
2433 +some duplicate code for the predefined names into a new module,
2434 +utilities/utpredef.c
2435 +
2436 +Example Code and Data Size: These are the sizes for the OS-independent
2437 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2438 +debug version of the code includes the debug output trace mechanism and
2439 +has a much larger code and data size.
2440 +
2441 + Previous Release:
2442 + Non-Debug Version: 95.0K Code, 25.9K Data, 120.9K Total
2443 + Debug Version: 182.9K Code, 75.6K Data, 258.5K Total
2444 + Current Release:
2445 + Non-Debug Version: 95.2K Code, 26.4K Data, 121.6K Total
2446 + Debug Version: 183.0K Code, 76.0K Data, 259.0K Total
2447 +
2448 +
2449 +2) iASL Compiler/Disassembler and Tools:
2450 +
2451 +iASL: Implemented a new option to simplify the development of ACPI-
2452 +related
2453 +BIOS code. Adds support for a new "offset table" output file. The -so
2454 +option will create a C table containing the AML table offsets of various
2455 +named objects in the namespace so that BIOS code can modify them easily
2456 +at
2457 +boot time. This can simplify BIOS runtime code by eliminating expensive
2458 +searches for "magic values", enhancing boot times and adding greater
2459 +reliability. With assistance from Lee Hamel.
2460 +
2461 +iASL: Allow additional predefined names to return zero-length packages.
2462 +Now, all predefined names that are defined by the ACPI specification to
2463 +return a "variable-length package of packages" are allowed to return a
2464 +zero length top-level package. This allows the BIOS to tell the host that
2465 +the requested feature is not supported, and supports existing BIOS/ASL
2466 +code and practices.
2467 +
2468 +iASL: Changed the "result not used" warning to an error. This is the case
2469 +where an ASL operator is effectively a NOOP because the result of the
2470 +operation is not stored anywhere. For example:
2471 + Add (4, Local0)
2472 +There is no target (missing 3rd argument), nor is the function return
2473 +value used. This is potentially a very serious problem -- since the code
2474 +was probably intended to do something, but for whatever reason, the value
2475 +was not stored. Therefore, this issue has been upgraded from a warning to
2476 +an error.
2477 +
2478 +AcpiHelp: Added allowable/required argument types to the predefined names
2479 +info display. This feature utilizes the recent update to the predefined
2480 +names table (above).
2481 +
2482 +----------------------------------------
2483 +14 February 2013. Summary of changes for version 20130214:
2484 +
2485 +1) ACPICA Kernel-resident Subsystem:
2486 +
2487 +Fixed a possible regression on some hosts: Reinstated the safe return
2488 +macros (return_ACPI_STATUS, etc.) that ensure that the argument is
2489 +evaluated only once. Although these macros are not needed for the ACPICA
2490 +code itself, they are often used by ACPI-related host device drivers
2491 +where
2492 +the safe feature may be necessary.
2493 +
2494 +Fixed several issues related to the ACPI 5.0 reduced hardware support
2495 +(SOC): Now ensure that if the platform declares itself as hardware-
2496 +reduced
2497 +via the FADT, the following functions become NOOPs (and always return
2498 +AE_OK) because ACPI is always enabled by definition on these machines:
2499 + AcpiEnable
2500 + AcpiDisable
2501 + AcpiHwGetMode
2502 + AcpiHwSetMode
2503 +
2504 +Dynamic Object Repair: Implemented additional runtime repairs for
2505 +predefined name return values. Both of these repairs can simplify code in
2506 +the related device drivers that invoke these methods:
2507 +1) For the _STR and _MLS names, automatically repair/convert an ASCII
2508 +string to a Unicode buffer.
2509 +2) For the _CRS, _PRS, and _DMA names, return a resource descriptor with
2510 +a
2511 +lone end tag descriptor in the following cases: A Return(0) was executed,
2512 +a null buffer was returned, or no object at all was returned (non-slack
2513 +mode only). Adds a new file, nsconvert.c
2514 +ACPICA BZ 998. Bob Moore, Lv Zheng.
2515 +
2516 +Resource Manager: Added additional code to prevent possible infinite
2517 +loops
2518 +while traversing corrupted or ill-formed resource template buffers. Check
2519 +for zero-length resource descriptors in all code that loops through
2520 +resource templates (the length field is used to index through the
2521 +template). This change also hardens the external AcpiWalkResources and
2522 +AcpiWalkResourceBuffer interfaces.
2523 +
2524 +Local Cache Manager: Enhanced the main data structure to eliminate an
2525 +unnecessary mechanism to access the next object in the list. Actually
2526 +provides a small performance enhancement for hosts that use the local
2527 +ACPICA cache manager. Jung-uk Kim.
2528 +
2529 +Example Code and Data Size: These are the sizes for the OS-independent
2530 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2531 +debug version of the code includes the debug output trace mechanism and
2532 +has a much larger code and data size.
2533 +
2534 + Previous Release:
2535 + Non-Debug Version: 94.5K Code, 25.4K Data, 119.9K Total
2536 + Debug Version: 182.3K Code, 75.0K Data, 257.3K Total
2537 + Current Release:
2538 + Non-Debug Version: 95.0K Code, 25.9K Data, 120.9K Total
2539 + Debug Version: 182.9K Code, 75.6K Data, 258.5K Total
2540 +
2541 +
2542 +2) iASL Compiler/Disassembler and Tools:
2543 +
2544 +iASL/Disassembler: Fixed several issues with the definition of the ACPI
2545 +5.0 RASF table (RAS Feature Table). This change incorporates late changes
2546 +that were made to the ACPI 5.0 specification.
2547 +
2548 +iASL/Disassembler: Added full support for the following new ACPI tables:
2549 + 1) The MTMR table (MID Timer Table)
2550 + 2) The VRTC table (Virtual Real Time Clock Table).
2551 +Includes header file, disassembler, table compiler, and template support
2552 +for both tables.
2553 +
2554 +iASL: Implemented compile-time validation of package objects returned by
2555 +predefined names. This new feature validates static package objects
2556 +returned by the various predefined names defined to return packages. Both
2557 +object types and package lengths are validated, for both parent packages
2558 +and sub-packages, if any. The code is similar in structure and behavior
2559 +to
2560 +the runtime repair mechanism within the AML interpreter and uses the
2561 +existing predefined name information table. Adds a new file, aslprepkg.c.
2562 +ACPICA BZ 938.
2563 +
2564 +iASL: Implemented auto-detection of binary ACPI tables for disassembly.
2565 +This feature detects a binary file with a valid ACPI table header and
2566 +invokes the disassembler automatically. Eliminates the need to
2567 +specifically invoke the disassembler with the -d option. ACPICA BZ 862.
2568 +
2569 +iASL/Disassembler: Added several warnings for the case where there are
2570 +unresolved control methods during the disassembly. This can potentially
2571 +cause errors when the output file is compiled, because the disassembler
2572 +assumes zero method arguments in these cases (it cannot determine the
2573 +actual number of arguments without resolution/definition of the method).
2574 +
2575 +Debugger: Added support to display all resources with a single command.
2576 +Invocation of the resources command with no arguments will now display
2577 +all
2578 +resources within the current namespace.
2579 +
2580 +AcpiHelp: Added descriptive text for each ACPICA exception code displayed
2581 +via the -e option.
2582 +
2583 +----------------------------------------
2584 +17 January 2013. Summary of changes for version 20130117:
2585 +
2586 +1) ACPICA Kernel-resident Subsystem:
2587 +
2588 +Updated the AcpiGetSleepTypeData interface: Allow the \_Sx methods to
2589 +return either 1 or 2 integers. Although the ACPI spec defines the \_Sx
2590 +objects to return a package containing one integer, most BIOS code
2591 +returns
2592 +two integers and the previous code reflects that. However, we also need
2593 +to
2594 +support BIOS code that actually implements to the ACPI spec, and this
2595 +change reflects this.
2596 +
2597 +Fixed two issues with the ACPI_DEBUG_PRINT macros:
2598 +1) Added the ACPI_DO_WHILE macro to the main DEBUG_PRINT helper macro for
2599 +C compilers that require this support.
2600 +2) Renamed the internal ACPI_DEBUG macro to ACPI_DO_DEBUG_PRINT since
2601 +ACPI_DEBUG is already used by many of the various hosts.
2602 +
2603 +Updated all ACPICA copyrights and signons to 2013. Added the 2013
2604 +copyright to all module headers and signons, including the standard Linux
2605 +header. This affects virtually every file in the ACPICA core subsystem,
2606 +iASL compiler, all ACPICA utilities, and the test suites.
2607 +
2608 +Example Code and Data Size: These are the sizes for the OS-independent
2609 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2610 +debug version of the code includes the debug output trace mechanism and
2611 +has a much larger code and data size.
2612 +
2613 + Previous Release:
2614 + Non-Debug Version: 94.5K Code, 25.5K Data, 120.0K Total
2615 + Debug Version: 182.2K Code, 74.9K Data, 257.1K Total
2616 + Current Release:
2617 + Non-Debug Version: 94.5K Code, 25.4K Data, 119.9K Total
2618 + Debug Version: 182.3K Code, 75.0K Data, 257.3K Total
2619 +
2620 +
2621 +2) iASL Compiler/Disassembler and Tools:
2622 +
2623 +Generic Unix OSL: Use a buffer to eliminate multiple vfprintf()s and
2624 +prevent a possible fault on some hosts. Some C libraries modify the arg
2625 +pointer parameter to vfprintf making it difficult to call it twice in the
2626 +AcpiOsVprintf function. Use a local buffer to workaround this issue. This
2627 +does not affect the Windows OSL since the Win C library does not modify
2628 +the arg pointer. Chao Guan, Bob Moore.
2629 +
2630 +iASL: Fixed a possible infinite loop when the maximum error count is
2631 +reached. If an output file other than the .AML file is specified (such as
2632 +a listing file), and the maximum number of errors is reached, do not
2633 +attempt to flush data to the output file(s) as the compiler is aborting.
2634 +This can cause an infinite loop as the max error count code essentially
2635 +keeps calling itself.
2636 +
2637 +iASL/Disassembler: Added an option (-in) to ignore NOOP
2638 +opcodes/operators.
2639 +Implemented for both the compiler and the disassembler. Often, the NOOP
2640 +opcode is used as padding for packages that are changed dynamically by
2641 +the
2642 +BIOS. When disassembled and recompiled, these NOOPs will cause syntax
2643 +errors. This option causes the disassembler to ignore all NOOP opcodes
2644 +(0xA3), and it also causes the compiler to ignore all ASL source code
2645 +NOOP
2646 +statements as well.
2647 +
2648 +Debugger: Enhanced the Sleep command to execute all sleep states. This
2649 +change allows Sleep to be invoked with no arguments and causes the
2650 +debugger to execute all of the sleep states, 0-5, automatically.
2651 +
2652 +----------------------------------------
2653 +20 December 2012. Summary of changes for version 20121220:
2654 +
2655 +1) ACPICA Kernel-resident Subsystem:
2656 +
2657 +Implemented a new interface, AcpiWalkResourceBuffer. This interface is an
2658 +alternate entry point for AcpiWalkResources and improves the usability of
2659 +the resource manager by accepting as input a buffer containing the output
2660 +of either a _CRS, _PRS, or _AEI method. The key functionality is that the
2661 +input buffer is not deleted by this interface so that it can be used by
2662 +the host later. See the ACPICA reference for details.
2663 +
2664 +Interpreter: Add a warning if a 64-bit constant appears in a 32-bit table
2665 +(DSDT version < 2). The constant will be truncated and this warning
2666 +reflects that behavior.
2667 +
2668 +Resource Manager: Add support for the new ACPI 5.0 wake bit in the IRQ,
2669 +ExtendedInterrupt, and GpioInt descriptors. This change adds support to
2670 +both get and set the new wake bit in these descriptors, separately from
2671 +the existing share bit. Reported by Aaron Lu.
2672 +
2673 +Interpreter: Fix Store() when an implicit conversion is not possible. For
2674 +example, in the cases such as a store of a string to an existing package
2675 +object, implement the store as a CopyObject(). This is a small departure
2676 +from the ACPI specification which states that the control method should
2677 +be
2678 +aborted in this case. However, the ASLTS suite depends on this behavior.
2679 +
2680 +Performance improvement for the various FUNCTION_TRACE and DEBUG_PRINT
2681 +macros: check if debug output is currently enabled as soon as possible to
2682 +minimize performance impact if debug is in fact not enabled.
2683 +
2684 +Source code restructuring: Cleanup to improve modularity. The following
2685 +new files have been added: dbconvert.c, evhandler.c, nsprepkg.c,
2686 +psopinfo.c, psobject.c, rsdumpinfo.c, utstring.c, and utownerid.c.
2687 +Associated makefiles and project files have been updated.
2688 +
2689 +Changed an exception code for LoadTable operator. For the case where one
2690 +of the input strings is too long, change the returned exception code from
2691 +AE_BAD_PARAMETER to AE_AML_STRING_LIMIT.
2692 +
2693 +Fixed a possible memory leak in dispatcher error path. On error, delete
2694 +the mutex object created during method mutex creation. Reported by
2695 +tim.gardner@canonical.com.
2696 +
2697 +Example Code and Data Size: These are the sizes for the OS-independent
2698 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2699 +debug version of the code includes the debug output trace mechanism and
2700 +has a much larger code and data size.
2701 +
2702 + Previous Release:
2703 + Non-Debug Version: 94.3K Code, 25.3K Data, 119.6K Total
2704 + Debug Version: 175.5K Code, 74.5K Data, 250.0K Total
2705 + Current Release:
2706 + Non-Debug Version: 94.5K Code, 25.5K Data, 120.0K Total
2707 + Debug Version: 182.2K Code, 74.9K Data, 257.1K Total
2708 +
2709 +
2710 +2) iASL Compiler/Disassembler and Tools:
2711 +
2712 +iASL: Disallow a method call as argument to the ObjectType ASL operator.
2713 +This change tracks an errata to the ACPI 5.0 document. The AML grammar
2714 +will not allow the interpreter to differentiate between a method and a
2715 +method invocation when these are used as an argument to the ObjectType
2716 +operator. The ACPI specification change is to disallow a method
2717 +invocation
2718 +(UserTerm) for the ObjectType operator.
2719 +
2720 +Finish support for the TPM2 and CSRT tables in the headers, table
2721 +compiler, and disassembler.
2722 +
2723 +Unix user-space OSL: Fix a problem with WaitSemaphore where the timeout
2724 +always expires immediately if the semaphore is not available. The
2725 +original
2726 +code was using a relative-time timeout, but sem_timedwait requires the
2727 +use
2728 +of an absolute time.
2729 +
2730 +iASL: Added a remark if the Timer() operator is used within a 32-bit
2731 +table. This operator returns a 64-bit time value that will be truncated
2732 +within a 32-bit table.
2733 +
2734 +iASL Source code restructuring: Cleanup to improve modularity. The
2735 +following new files have been added: aslhex.c, aslxref.c, aslnamesp.c,
2736 +aslmethod.c, and aslfileio.c. Associated makefiles and project files have
2737 +been updated.
2738 +
2739 +
2740 +----------------------------------------
2741 +14 November 2012. Summary of changes for version 20121114:
2742 +
2743 +1) ACPICA Kernel-resident Subsystem:
2744 +
2745 +Implemented a performance enhancement for ACPI/AML Package objects. This
2746 +change greatly increases the performance of Package objects within the
2747 +interpreter. It changes the processing of reference counts for packages
2748 +by
2749 +optimizing for the most common case where the package sub-objects are
2750 +either Integers, Strings, or Buffers. Increases the overall performance
2751 +of
2752 +the ASLTS test suite by 1.5X (Increases the Slack Mode performance by
2753 +2X.)
2754 +Chao Guan. ACPICA BZ 943.
2755 +
2756 +Implemented and deployed common macros to extract flag bits from resource
2757 +descriptors. Improves readability and maintainability of the code. Fixes
2758 +a
2759 +problem with the UART serial bus descriptor for the number of data bits
2760 +flags (was incorrectly 2 bits, should be 3).
2761 +
2762 +Enhanced the ACPI_GETx and ACPI_SETx macros. Improved the implementation
2763 +of the macros and changed the SETx macros to the style of (destination,
2764 +source). Also added ACPI_CASTx companion macros. Lv Zheng.
2765 +
2766 +Example Code and Data Size: These are the sizes for the OS-independent
2767 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2768 +debug version of the code includes the debug output trace mechanism and
2769 +has a much larger code and data size.
2770 +
2771 + Previous Release:
2772 + Non-Debug Version: 93.9K Code, 25.2K Data, 119.1K Total
2773 + Debug Version: 175.5K Code, 74.5K Data, 250.0K Total
2774 + Current Release:
2775 + Non-Debug Version: 94.3K Code, 25.3K Data, 119.6K Total
2776 + Debug Version: 175.5K Code, 74.5K Data, 250.0K Total
2777 +
2778 +
2779 +2) iASL Compiler/Disassembler and Tools:
2780 +
2781 +Disassembler: Added the new ACPI 5.0 interrupt sharing flags. This change
2782 +adds the ShareAndWake and ExclusiveAndWake flags which were added to the
2783 +Irq, Interrupt, and Gpio resource descriptors in ACPI 5.0. ACPICA BZ 986.
2784 +
2785 +Disassembler: Fixed a problem with external declaration generation. Fixes
2786 +a problem where an incorrect pathname could be generated for an external
2787 +declaration if the original reference to the object includes leading
2788 +carats (^). ACPICA BZ 984.
2789 +
2790 +Debugger: Completed a major update for the Disassemble<method> command.
2791 +This command was out-of-date and did not properly disassemble control
2792 +methods that had any reasonable complexity. This fix brings the command
2793 +up
2794 +to the same level as the rest of the disassembler. Adds one new file,
2795 +dmdeferred.c, which is existing code that is now common with the main
2796 +disassembler and the debugger disassemble command. ACPICA MZ 978.
2797 +
2798 +iASL: Moved the parser entry prototype to avoid a duplicate declaration.
2799 +Newer versions of Bison emit this prototype, so moved the prototype out
2800 +of
2801 +the iASL header to where it is actually used in order to avoid a
2802 +duplicate
2803 +declaration.
2804 +
2805 +iASL/Tools: Standardized use of the stream I/O functions:
2806 + 1) Ensure check for I/O error after every fopen/fread/fwrite
2807 + 2) Ensure proper order of size/count arguments for fread/fwrite
2808 + 3) Use test of (Actual != Requested) after all fwrite, and most fread
2809 + 4) Standardize I/O error messages
2810 +Improves reliability and maintainability of the code. Bob Moore, Lv
2811 +Zheng.
2812 +ACPICA BZ 981.
2813 +
2814 +Disassembler: Prevent duplicate External() statements. During generation
2815 +of external statements, detect similar pathnames that are actually
2816 +duplicates such as these:
2817 + External (\ABCD)
2818 + External (ABCD)
2819 +Remove all leading '\' characters from pathnames during the external
2820 +statement generation so that duplicates will be detected and tossed.
2821 +ACPICA BZ 985.
2822 +
2823 +Tools: Replace low-level I/O with stream I/O functions. Replace
2824 +open/read/write/close with the stream I/O equivalents
2825 +fopen/fread/fwrite/fclose for portability and performance. Lv Zheng, Bob
2826 +Moore.
2827 +
2828 +AcpiBin: Fix for the dump-to-hex function. Now correctly output the table
2829 +name header so that AcpiXtract recognizes the output file/table.
2830 +
2831 +iASL: Remove obsolete -2 option flag. Originally intended to force the
2832 +compiler/disassembler into an ACPI 2.0 mode, this was never implemented
2833 +and the entire concept is now obsolete.
2834 +
2835 +----------------------------------------
2836 +18 October 2012. Summary of changes for version 20121018:
2837 +
2838 +
2839 +1) ACPICA Kernel-resident Subsystem:
2840 +
2841 +Updated support for the ACPI 5.0 MPST table. Fixes some problems
2842 +introduced by late changes to the table as it was added to the ACPI 5.0
2843 +specification. Includes header, disassembler, and data table compiler
2844 +support as well as a new version of the MPST template.
2845 +
2846 +AcpiGetObjectInfo: Enhanced the device object support to include the ACPI
2847 +5.0 _SUB method. Now calls _SUB in addition to the other PNP-related ID
2848 +methods: _HID, _CID, and _UID.
2849 +
2850 +Changed ACPI_DEVICE_ID to ACPI_PNP_DEVICE_ID. Also changed
2851 +ACPI_DEVICE_ID_LIST to ACPI_PNP_DEVICE_ID_LIST. These changes prevent
2852 +name collisions on hosts that reserve the *_DEVICE_ID (or *DeviceId)
2853 +names for their various drivers. Affects the AcpiGetObjectInfo external
2854 +interface, and other internal interfaces as well.
2855 +
2856 +Added and deployed a new macro for ACPI_NAME management: ACPI_MOVE_NAME.
2857 +This macro resolves to a simple 32-bit move of the 4-character ACPI_NAME
2858 +on machines that support non-aligned transfers. Optimizes for this case
2859 +rather than using a strncpy. With assistance from Zheng Lv.
2860 +
2861 +Resource Manager: Small fix for buffer size calculation. Fixed a one byte
2862 +error in the output buffer calculation. Feng Tang. ACPICA BZ 849.
2863 +
2864 +Added a new debug print message for AML mutex objects that are force-
2865 +released. At control method termination, any currently acquired mutex
2866 +objects are force-released. Adds a new debug-only message for each one
2867 +that is released.
2868 +
2869 +Audited/updated all ACPICA return macros and the function debug depth
2870 +counter: 1) Ensure that all functions that use the various TRACE macros
2871 +also use the appropriate ACPICA return macros. 2) Ensure that all normal
2872 +return statements surround the return expression (value) with parens to
2873 +ensure consistency across the ACPICA code base. Guan Chao, Tang Feng,
2874 +Zheng Lv, Bob Moore. ACPICA Bugzilla 972.
2875 +
2876 +Global source code changes/maintenance: All extra lines at the start and
2877 +end of each source file have been removed for consistency. Also, within
2878 +comments, all new sentences start with a single space instead of a double
2879 +space, again for consistency across the code base.
2880 +
2881 +Example Code and Data Size: These are the sizes for the OS-independent
2882 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2883 +debug version of the code includes the debug output trace mechanism and
2884 +has a much larger code and data size.
2885 +
2886 + Previous Release:
2887 + Non-Debug Version: 93.7K Code, 25.3K Data, 119.0K Total
2888 + Debug Version: 175.0K Code, 74.4K Data, 249.4K Total
2889 + Current Release:
2890 + Non-Debug Version: 93.9K Code, 25.2K Data, 119.1K Total
2891 + Debug Version: 175.5K Code, 74.5K Data, 250.0K Total
2892 +
2893 +
2894 +2) iASL Compiler/Disassembler and Tools:
2895 +
2896 +AcpiExec: Improved the algorithm used for memory leak/corruption
2897 +detection. Added some intelligence to the code that maintains the global
2898 +list of allocated memory. The list is now ordered by allocated memory
2899 +address, significantly improving performance. When running AcpiExec on
2900 +the ASLTS test suite, speed improvements of 3X to 5X are seen, depending
2901 +on the platform and/or the environment. Note, this performance
2902 +enhancement affects the AcpiExec utility only, not the kernel-resident
2903 +ACPICA code.
2904 +
2905 +Enhanced error reporting for invalid AML opcodes and bad ACPI_NAMEs. For
2906 +the disassembler, dump the 48 bytes surrounding the invalid opcode. Fix
2907 +incorrect table offset reported for invalid opcodes. Report the original
2908 +32-bit value for bad ACPI_NAMEs (as well as the repaired name.)
2909 +
2910 +Disassembler: Enhanced the -vt option to emit the binary table data in
2911 +hex format to assist with debugging.
2912 +
2913 +Fixed a potential filename buffer overflow in osunixdir.c. Increased the
2914 +size of file structure. Colin Ian King.
2915 +
2916 +----------------------------------------
2917 +13 September 2012. Summary of changes for version 20120913:
2918 +
2919 +
2920 +1) ACPICA Kernel-resident Subsystem:
2921 +
2922 +ACPI 5.0: Added two new notify types for the Hardware Error Notification
2923 +Structure within the Hardware Error Source Table (HEST) table -- CMCI(5)
2924 +and
2925 +MCE(6).
2926 +
2927 +Table Manager: Merged/removed duplicate code in the root table resize
2928 +functions. One function is external, the other is internal. Lv Zheng,
2929 +ACPICA
2930 +BZ 846.
2931 +
2932 +Makefiles: Completely removed the obsolete "Linux" makefiles under
2933 +acpica/generate/linux. These makefiles are obsolete and have been
2934 +replaced
2935 +by
2936 +the generic unix makefiles under acpica/generate/unix.
2937 +
2938 +Makefiles: Ensure that binary files always copied properly. Minor rule
2939 +change
2940 +to ensure that the final binary output files are always copied up to the
2941 +appropriate binary directory (bin32 or bin64.)
2942 +
2943 +Example Code and Data Size: These are the sizes for the OS-independent
2944 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2945 +debug
2946 +version of the code includes the debug output trace mechanism and has a
2947 +much
2948 +larger code and data size.
2949 +
2950 + Previous Release:
2951 + Non-Debug Version: 93.8K Code, 25.3K Data, 119.1K Total
2952 + Debug Version: 175.7K Code, 74.8K Data, 250.5K Total
2953 + Current Release:
2954 + Non-Debug Version: 93.7K Code, 25.3K Data, 119.0K Total
2955 + Debug Version: 175.0K Code, 74.4K Data, 249.4K Total
2956 +
2957 +
2958 +2) iASL Compiler/Disassembler and Tools:
2959 +
2960 +Disassembler: Fixed a possible fault during the disassembly of resource
2961 +descriptors when a second parse is required because of the invocation of
2962 +external control methods within the table. With assistance from
2963 +adq@lidskialf.net. ACPICA BZ 976.
2964 +
2965 +iASL: Fixed a namepath optimization problem. An error can occur if the
2966 +parse
2967 +node that contains the namepath to be optimized does not have a parent
2968 +node
2969 +that is a named object. This change fixes the problem.
2970 +
2971 +iASL: Fixed a regression where the AML file is not deleted on errors. The
2972 +AML
2973 +output file should be deleted if there are any errors during the
2974 +compiler.
2975 +The
2976 +only exception is if the -f (force output) option is used. ACPICA BZ 974.
2977 +
2978 +iASL: Added a feature to automatically increase internal line buffer
2979 +sizes.
2980 +Via realloc(), automatically increase the internal line buffer sizes as
2981 +necessary to support very long source code lines. The current version of
2982 +the
2983 +preprocessor requires a buffer long enough to contain full source code
2984 +lines.
2985 +This change increases the line buffer(s) if the input lines go beyond the
2986 +current buffer size. This eliminates errors that occurred when a source
2987 +code
2988 +line was longer than the buffer.
2989 +
2990 +iASL: Fixed a problem with constant folding in method declarations. The
2991 +SyncLevel term is a ByteConstExpr, and incorrect code would be generated
2992 +if a
2993 +Type3 opcode was used.
2994 +
2995 +Debugger: Improved command help support. For incorrect argument count,
2996 +display
2997 +full help for the command. For help command itself, allow an argument to
2998 +specify a command.
2999 +
3000 +Test Suites: Several bug fixes for the ASLTS suite reduces the number of
3001 +errors during execution of the suite. Guan Chao.
3002 +
3003 +----------------------------------------
3004 +16 August 2012. Summary of changes for version 20120816:
3005 +
3006 +
3007 +1) ACPICA Kernel-resident Subsystem:
3008 +
3009 +Removed all use of the deprecated _GTS and _BFS predefined methods. The
3010 +_GTS
3011 +(Going To Sleep) and _BFS (Back From Sleep) methods are essentially
3012 +deprecated and will probably be removed from the ACPI specification.
3013 +Windows
3014 +does not invoke them, and reportedly never will. The final nail in the
3015 +coffin
3016 +is that the ACPI specification states that these methods must be run with
3017 +interrupts off, which is not going to happen in a kernel interpreter.
3018 +Note:
3019 +Linux has removed all use of the methods also. It was discovered that
3020 +invoking these functions caused failures on some machines, probably
3021 +because
3022 +they were never tested since Windows does not call them. Affects two
3023 +external
3024 +interfaces, AcpiEnterSleepState and AcpiLeaveSleepStatePrep. Tang Feng.
3025 +ACPICA BZ 969.
3026 +
3027 +Implemented support for complex bit-packed buffers returned from the _PLD
3028 +(Physical Location of Device) predefined method. Adds a new external
3029 +interface, AcpiDecodePldBuffer that parses the buffer into a more usable
3030 +C
3031 +structure. Note: C Bitfields cannot be used for this type of predefined
3032 +structure since the memory layout of individual bitfields is not defined
3033 +by
3034 +the C language. In addition, there are endian concerns where a compiler
3035 +will
3036 +change the bitfield ordering based on the machine type. The new ACPICA
3037 +interface eliminates these issues, and should be called after _PLD is
3038 +executed. ACPICA BZ 954.
3039 +
3040 +Implemented a change to allow a scope change to root (via "Scope (\)")
3041 +during
3042 +execution of module-level ASL code (code that is executed at table load
3043 +time.) Lin Ming.
3044 +
3045 +Added the Windows8/Server2012 string for the _OSI method. This change
3046 +adds
3047 +a
3048 +new _OSI string, "Windows 2012" for both Windows 8 and Windows Server
3049 +2012.
3050 +
3051 +Added header support for the new ACPI tables DBG2 (Debug Port Table Type
3052 +2)
3053 +and CSRT (Core System Resource Table).
3054 +
3055 +Added struct header support for the _FDE, _GRT, _GTM, and _SRT predefined
3056 +names. This simplifies access to the buffers returned by these predefined
3057 +names. Adds a new file, include/acbuffer.h. ACPICA BZ 956.
3058 +
3059 +GPE support: Removed an extraneous parameter from the various low-level
3060 +internal GPE functions. Tang Feng.
3061 +
3062 +Removed the linux makefiles from the unix packages. The generate/linux
3063 +makefiles are obsolete and have been removed from the unix tarball
3064 +release
3065 +packages. The replacement makefiles are under generate/unix, and there is
3066 +a
3067 +top-level makefile under the main acpica directory. ACPICA BZ 967, 912.
3068 +
3069 +Updates for Unix makefiles:
3070 +1) Add -D_FORTIFY_SOURCE=2 for gcc generation. Arjan van de Ven.
3071 +2) Update linker flags (move to end of command line) for AcpiExec
3072 +utility.
3073 +Guan Chao.
3074 +
3075 +Split ACPICA initialization functions to new file, utxfinit.c. Split from
3076 +utxface.c to improve modularity and reduce file size.
3077 +
3078 +Example Code and Data Size: These are the sizes for the OS-independent
3079 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3080 +debug version of the code includes the debug output trace mechanism and
3081 +has a
3082 +much larger code and data size.
3083 +
3084 + Previous Release:
3085 + Non-Debug Version: 93.5K Code, 25.3K Data, 118.8K Total
3086 + Debug Version: 173.7K Code, 74.0K Data, 247.7K Total
3087 + Current Release:
3088 + Non-Debug Version: 93.8K Code, 25.3K Data, 119.1K Total
3089 + Debug Version: 175.7K Code, 74.8K Data, 250.5K Total
3090 +
3091 +
3092 +2) iASL Compiler/Disassembler and Tools:
3093 +
3094 +iASL: Fixed a problem with constant folding for fixed-length constant
3095 +expressions. The constant-folding code was not being invoked for constant
3096 +expressions that allow the use of type 3/4/5 opcodes to generate
3097 +constants
3098 +for expressions such as ByteConstExpr, WordConstExpr, etc. This could
3099 +result
3100 +in the generation of invalid AML bytecode. ACPICA BZ 970.
3101 +
3102 +iASL: Fixed a generation issue on newer versions of Bison. Newer versions
3103 +apparently automatically emit some of the necessary externals. This
3104 +change
3105 +handles these versions in order to eliminate generation warnings.
3106 +
3107 +Disassembler: Added support to decode the DBG2 and CSRT ACPI tables.
3108 +
3109 +Disassembler: Add support to decode _PLD buffers. The decoded buffer
3110 +appears
3111 +within comments in the output file.
3112 +
3113 +Debugger: Fixed a regression with the "Threads" command where
3114 +AE_BAD_PARAMETER was always returned.
3115 +
3116 +----------------------------------------
3117 +11 July 2012. Summary of changes for version 20120711:
3118 +
3119 +1) ACPICA Kernel-resident Subsystem:
3120 +
3121 +Fixed a possible fault in the return package object repair code. Fixes a
3122 +problem that can occur when a lone package object is wrapped with an
3123 +outer
3124 +package object in order to force conformance to the ACPI specification.
3125 +Can
3126 +affect these predefined names: _ALR, _MLS, _PSS, _TRT, _TSS, _PRT, _HPX,
3127 +_DLM,
3128 +_CSD, _PSD, _TSD.
3129 +
3130 +Removed code to disable/enable bus master arbitration (ARB_DIS bit in the
3131 +PM2_CNT register) in the ACPICA sleep/wake interfaces. Management of the
3132 +ARB_DIS bit must be implemented in the host-dependent C3 processor power
3133 +state
3134 +support. Note, ARB_DIS is obsolete and only applies to older chipsets,
3135 +both
3136 +Intel and other vendors. (for Intel: ICH4-M and earlier)
3137 +
3138 +This change removes the code to disable/enable bus master arbitration
3139 +during
3140 +suspend/resume. Use of the ARB_DIS bit in the optional PM2_CNT register
3141 +causes
3142 +resume problems on some machines. The change has been in use for over
3143 +seven
3144 +years within Linux.
3145 +
3146 +Implemented two new external interfaces to support host-directed dynamic
3147 +ACPI
3148 +table load and unload. They are intended to simplify the host
3149 +implementation
3150 +of hot-plug support:
3151 + AcpiLoadTable: Load an SSDT from a buffer into the namespace.
3152 + AcpiUnloadParentTable: Unload an SSDT via a named object owned by the
3153 +table.
3154 +See the ACPICA reference for additional details. Adds one new file,
3155 +components/tables/tbxfload.c
3156 +
3157 +Implemented and deployed two new interfaces for errors and warnings that
3158 +are
3159 +known to be caused by BIOS/firmware issues:
3160 + AcpiBiosError: Prints "ACPI Firmware Error" message.
3161 + AcpiBiosWarning: Prints "ACPI Firmware Warning" message.
3162 +Deployed these new interfaces in the ACPICA Table Manager code for ACPI
3163 +table
3164 +and FADT errors. Additional deployment to be completed as appropriate in
3165 +the
3166 +future. The associated conditional macros are ACPI_BIOS_ERROR and
3167 +ACPI_BIOS_WARNING. See the ACPICA reference for additional details.
3168 +ACPICA
3169 +BZ
3170 +843.
3171 +
3172 +Implicit notify support: ensure that no memory allocation occurs within a
3173 +critical region. This fix moves a memory allocation outside of the time
3174 +that a
3175 +spinlock is held. Fixes issues on systems that do not allow this
3176 +behavior.
3177 +Jung-uk Kim.
3178 +
3179 +Split exception code utilities and tables into a new file,
3180 +utilities/utexcep.c
3181 +
3182 +Example Code and Data Size: These are the sizes for the OS-independent
3183 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3184 +debug
3185 +version of the code includes the debug output trace mechanism and has a
3186 +much
3187 +larger code and data size.
3188 +
3189 + Previous Release:
3190 + Non-Debug Version: 93.1K Code, 25.1K Data, 118.2K Total
3191 + Debug Version: 172.9K Code, 73.6K Data, 246.5K Total
3192 + Current Release:
3193 + Non-Debug Version: 93.5K Code, 25.3K Data, 118.8K Total
3194 + Debug Version: 173.7K Code, 74.0K Data, 247.7K Total
3195 +
3196 +
3197 +2) iASL Compiler/Disassembler and Tools:
3198 +
3199 +iASL: Fixed a parser problem for hosts where EOF is defined as -1 instead
3200 +of
3201 +0. Jung-uk Kim.
3202 +
3203 +Debugger: Enhanced the "tables" command to emit additional information
3204 +about
3205 +the current set of ACPI tables, including the owner ID and flags decode.
3206 +
3207 +Debugger: Reimplemented the "unload" command to use the new
3208 +AcpiUnloadParentTable external interface. This command was disable
3209 +previously
3210 +due to need for an unload interface.
3211 +
3212 +AcpiHelp: Added a new option to decode ACPICA exception codes. The -e
3213 +option
3214 +will decode 16-bit hex status codes (ACPI_STATUS) to name strings.
3215 +
3216 +----------------------------------------
3217 +20 June 2012. Summary of changes for version 20120620:
3218 +
3219 +
3220 +1) ACPICA Kernel-resident Subsystem:
3221 +
3222 +Implemented support to expand the "implicit notify" feature to allow
3223 +multiple
3224 +devices to be notified by a single GPE. This feature automatically
3225 +generates a
3226 +runtime device notification in the absence of a BIOS-provided GPE control
3227 +method (_Lxx/_Exx) or a host-installed handler for the GPE. Implicit
3228 +notify is
3229 +provided by ACPICA for Windows compatibility, and is a workaround for
3230 +BIOS
3231 +AML
3232 +code errors. See the description of the AcpiSetupGpeForWake interface in
3233 +the
3234 +APCICA reference. Bob Moore, Rafael Wysocki. ACPICA BZ 918.
3235 +
3236 +Changed some comments and internal function names to simplify and ensure
3237 +correctness of the Linux code translation. No functional changes.
3238 +
3239 +Example Code and Data Size: These are the sizes for the OS-independent
3240 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3241 +debug
3242 +version of the code includes the debug output trace mechanism and has a
3243 +much
3244 +larger code and data size.
3245 +
3246 + Previous Release:
3247 + Non-Debug Version: 93.0K Code, 25.1K Data, 118.1K Total
3248 + Debug Version: 172.7K Code, 73.6K Data, 246.3K Total
3249 + Current Release:
3250 + Non-Debug Version: 93.1K Code, 25.1K Data, 118.2K Total
3251 + Debug Version: 172.9K Code, 73.6K Data, 246.5K Total
3252 +
3253 +
3254 +2) iASL Compiler/Disassembler and Tools:
3255 +
3256 +Disassembler: Added support to emit short, commented descriptions for the
3257 +ACPI
3258 +predefined names in order to improve the readability of the disassembled
3259 +output. ACPICA BZ 959. Changes include:
3260 + 1) Emit descriptions for all standard predefined names (_INI, _STA,
3261 +_PRW,
3262 +etc.)
3263 + 2) Emit generic descriptions for the special names (_Exx, _Qxx, etc.)
3264 + 3) Emit descriptions for the resource descriptor names (_MIN, _LEN,
3265 +etc.)
3266 +
3267 +AcpiSrc: Fixed several long-standing Linux code translation issues.
3268 +Argument
3269 +descriptions in function headers are now translated properly to lower
3270 +case
3271 +and
3272 +underscores. ACPICA BZ 961. Also fixes translation problems such as
3273 +these:
3274 +(old -> new)
3275 + i_aSL -> iASL
3276 + 00-7_f -> 00-7F
3277 + 16_k -> 16K
3278 + local_fADT -> local_FADT
3279 + execute_oSI -> execute_OSI
3280 +
3281 +iASL: Fixed a problem where null bytes were inadvertently emitted into
3282 +some
3283 +listing files.
3284 +
3285 +iASL: Added the existing debug options to the standard help screen. There
3286 +are
3287 +no longer two different help screens. ACPICA BZ 957.
3288 +
3289 +AcpiHelp: Fixed some typos in the various predefined name descriptions.
3290 +Also
3291 +expand some of the descriptions where appropriate.
3292 +
3293 +iASL: Fixed the -ot option (display compile times/statistics). Was not
3294 +working
3295 +properly for standard output; only worked for the debug file case.
3296 +
3297 +----------------------------------------
3298 +18 May 2012. Summary of changes for version 20120518:
3299 +
3300 +
3301 +1) ACPICA Core Subsystem:
3302 +
3303 +Added a new OSL interface, AcpiOsWaitEventsComplete. This interface is
3304 +defined
3305 +to block until asynchronous events such as notifies and GPEs have
3306 +completed.
3307 +Within ACPICA, it is only called before a notify or GPE handler is
3308 +removed/uninstalled. It also may be useful for the host OS within related
3309 +drivers such as the Embedded Controller driver. See the ACPICA reference
3310 +for
3311 +additional information. ACPICA BZ 868.
3312 +
3313 +ACPI Tables: Added a new error message for a possible overflow failure
3314 +during
3315 +the conversion of FADT 32-bit legacy register addresses to internal
3316 +common
3317 +64-
3318 +bit GAS structure representation. The GAS has a one-byte "bit length"
3319 +field,
3320 +thus limiting the register length to 255 bits. ACPICA BZ 953.
3321 +
3322 +Example Code and Data Size: These are the sizes for the OS-independent
3323 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3324 +debug
3325 +version of the code includes the debug output trace mechanism and has a
3326 +much
3327 +larger code and data size.
3328 +
3329 + Previous Release:
3330 + Non-Debug Version: 92.9K Code, 25.0K Data, 117.9K Total
3331 + Debug Version: 172.6K Code, 73.4K Data, 246.0K Total
3332 + Current Release:
3333 + Non-Debug Version: 93.0K Code, 25.1K Data, 118.1K Total
3334 + Debug Version: 172.7K Code, 73.6K Data, 246.3K Total
3335 +
3336 +
3337 +2) iASL Compiler/Disassembler and Tools:
3338 +
3339 +iASL: Added the ACPI 5.0 "PCC" keyword for use in the Register() ASL
3340 +macro.
3341 +This keyword was added late in the ACPI 5.0 release cycle and was not
3342 +implemented until now.
3343 +
3344 +Disassembler: Added support for Operation Region externals. Adds missing
3345 +support for operation regions that are defined in another table, and
3346 +referenced locally via a Field or BankField ASL operator. Now generates
3347 +the
3348 +correct External statement.
3349 +
3350 +Disassembler: Several additional fixes for the External() statement
3351 +generation
3352 +related to some ASL operators. Also, order the External() statements
3353 +alphabetically in the disassembler output. Fixes the External()
3354 +generation
3355 +for
3356 +the Create* field, Alias, and Scope operators:
3357 + 1) Create* buffer field operators - fix type mismatch warning on
3358 +disassembly
3359 + 2) Alias - implement missing External support
3360 + 3) Scope - fix to make sure all necessary externals are emitted.
3361 +
3362 +iASL: Improved pathname support. For include files, merge the prefix
3363 +pathname
3364 +with the file pathname and eliminate unnecessary components. Convert
3365 +backslashes in all pathnames to forward slashes, for readability. Include
3366 +file
3367 +pathname changes affect both #include and Include() type operators.
3368 +
3369 +iASL/DTC/Preprocessor: Gracefully handle early EOF. Handle an EOF at the
3370 +end
3371 +of a valid line by inserting a newline and then returning the EOF during
3372 +the
3373 +next call to GetNextLine. Prevents the line from being ignored due to EOF
3374 +condition.
3375 +
3376 +iASL: Implemented some changes to enhance the IDE support (-vi option.)
3377 +Error
3378 +and Warning messages are now correctly recognized for both the source
3379 +code
3380 +browser and the global error and warning counts.
3381 +
3382 +----------------------------------------
3383 +20 April 2012. Summary of changes for version 20120420:
3384 +
3385 +
3386 +1) ACPICA Core Subsystem:
3387 +
3388 +Implemented support for multiple notify handlers. This change adds
3389 +support
3390 +to
3391 +allow multiple system and device notify handlers on Device, Thermal Zone,
3392 +and
3393 +Processor objects. This can simplify the host OS notification
3394 +implementation.
3395 +Also re-worked and restructured the entire notify support code to
3396 +simplify
3397 +handler installation, handler removal, notify event queuing, and notify
3398 +dispatch to handler(s). Note: there can still only be two global notify
3399 +handlers - one for system notifies and one for device notifies. There are
3400 +no
3401 +changes to the existing handler install/remove interfaces. Lin Ming, Bob
3402 +Moore, Rafael Wysocki.
3403 +
3404 +Fixed a regression in the package repair code where the object reference
3405 +count was calculated incorrectly. Regression was introduced in the commit
3406 +"Support to add Package wrappers".
3407 +
3408 +Fixed a couple possible memory leaks in the AML parser, in the error
3409 +recovery
3410 +path. Jesper Juhl, Lin Ming.
3411 +
3412 +Example Code and Data Size: These are the sizes for the OS-independent
3413 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3414 +debug version of the code includes the debug output trace mechanism and
3415 +has a
3416 +much larger code and data size.
3417 +
3418 + Previous Release:
3419 + Non-Debug Version: 92.9K Code, 25.0K Data, 117.9K Total
3420 + Debug Version: 172.5K Code, 73.2K Data, 245.7K Total
3421 + Current Release:
3422 + Non-Debug Version: 92.9K Code, 25.0K Data, 117.9K Total
3423 + Debug Version: 172.6K Code, 73.4K Data, 246.0K Total
3424 +
3425 +
3426 +2) iASL Compiler/Disassembler and Tools:
3427 +
3428 +iASL: Fixed a problem with the resource descriptor support where the
3429 +length
3430 +of the StartDependentFn and StartDependentFnNoPrio descriptors were not
3431 +included in cumulative descriptor offset, resulting in incorrect values
3432 +for
3433 +resource tags within resource descriptors appearing after a
3434 +StartDependent*
3435 +descriptor. Reported by Petr Vandrovec. ACPICA BZ 949.
3436 +
3437 +iASL and Preprocessor: Implemented full support for the #line directive
3438 +to
3439 +correctly track original source file line numbers through the .i
3440 +preprocessor
3441 +output file - for error and warning messages.
3442 +
3443 +iASL: Expand the allowable byte constants for address space IDs.
3444 +Previously,
3445 +the allowable range was 0x80-0xFF (user-defined spaces), now the range is
3446 +0x0A-0xFF to allow for custom and new IDs without changing the compiler.
3447 +
3448 +iASL: Add option to treat all warnings as errors (-we). ACPICA BZ 948.
3449 +
3450 +iASL: Add option to completely disable the preprocessor (-Pn).
3451 +
3452 +iASL: Now emit all error/warning messages to standard error (stderr) by
3453 +default (instead of the previous stdout).
3454 +
3455 +ASL Test Suite (ASLTS): Reduce iASL warnings due to use of Switch().
3456 +Update
3457 +for resource descriptor offset fix above. Update/cleanup error output
3458 +routines. Enable and send iASL errors/warnings to an error logfile
3459 +(error.txt). Send all other iASL output to a logfile (compiler.txt).
3460 +Fixed
3461 +several extraneous "unrecognized operator" messages.
3462 +
3463 +----------------------------------------
3464 +20 March 2012. Summary of changes for version 20120320:
3465 +
3466 +
3467 +1) ACPICA Core Subsystem:
3468 +
3469 +Enhanced the sleep/wake interfaces to optionally execute the _GTS method
3470 +(Going To Sleep) and the _BFS method (Back From Sleep). Windows
3471 +apparently
3472 +does not execute these methods, and therefore these methods are often
3473 +untested. It has been seen on some systems where the execution of these
3474 +methods causes errors and also prevents the machine from entering S5. It
3475 +is
3476 +therefore suggested that host operating systems do not execute these
3477 +methods
3478 +by default. In the future, perhaps these methods can be optionally
3479 +executed
3480 +based on the age of the system and/or what is the newest version of
3481 +Windows
3482 +that the BIOS asks for via _OSI. Changed interfaces: AcpiEnterSleepState
3483 +and
3484 +AcpileaveSleepStatePrep. See the ACPICA reference and Linux BZ 13041. Lin
3485 +Ming.
3486 +
3487 +Fixed a problem where the length of the local/common FADT was set too
3488 +early.
3489 +The local FADT table length cannot be set to the common length until the
3490 +original length has been examined. There is code that checks the table
3491 +length
3492 +and sets various fields appropriately. This can affect older machines
3493 +with
3494 +early FADT versions. For example, this can cause inadvertent writes to
3495 +the
3496 +CST_CNT register. Julian Anastasov.
3497 +
3498 +Fixed a mapping issue related to a physical table override. Use the
3499 +deferred
3500 +mapping mechanism for tables loaded via the physical override OSL
3501 +interface.
3502 +This allows for early mapping before the virtual memory manager is
3503 +available.
3504 +Thomas Renninger, Bob Moore.
3505 +
3506 +Enhanced the automatic return-object repair code: Repair a common problem
3507 +with
3508 +predefined methods that are defined to return a variable-length Package
3509 +of
3510 +sub-objects. If there is only one sub-object, some BIOS ASL code
3511 +mistakenly
3512 +simply returns the single object instead of a Package with one sub-
3513 +object.
3514 +This new support will repair this error by wrapping a Package object
3515 +around
3516 +the original object, creating the correct and expected Package with one
3517 +sub-
3518 +object. Names that can be repaired in this manner include: _ALR, _CSD,
3519 +_HPX,
3520 +_MLS, _PLD, _PRT, _PSS, _TRT, _TSS, _BCL, _DOD, _FIX, and _Sx. ACPICA BZ
3521 +939.
3522 +
3523 +Changed the exception code returned for invalid ACPI paths passed as
3524 +parameters to external interfaces such as AcpiEvaluateObject. Was
3525 +AE_BAD_PARAMETER, now is the more sensible AE_BAD_PATHNAME.
3526 +
3527 +Example Code and Data Size: These are the sizes for the OS-independent
3528 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3529 +debug
3530 +version of the code includes the debug output trace mechanism and has a
3531 +much
3532 +larger code and data size.
3533 +
3534 + Previous Release:
3535 + Non-Debug Version: 93.0K Code, 25.0K Data, 118.0K Total
3536 + Debug Version: 172.5K Code, 73.2K Data, 245.7K Total
3537 + Current Release:
3538 + Non-Debug Version: 92.9K Code, 25.0K Data, 117.9K Total
3539 + Debug Version: 172.5K Code, 73.2K Data, 245.7K Total
3540 +
3541 +
3542 +2) iASL Compiler/Disassembler and Tools:
3543 +
3544 +iASL: Added the infrastructure and initial implementation of a integrated
3545 +C-
3546 +like preprocessor. This will simplify BIOS development process by
3547 +eliminating
3548 +the need for a separate preprocessing step during builds. On Windows, it
3549 +also
3550 +eliminates the need to install a separate C compiler. ACPICA BZ 761. Some
3551 +features including full #define() macro support are still under
3552 +development.
3553 +These preprocessor directives are supported:
3554 + #define
3555 + #elif
3556 + #else
3557 + #endif
3558 + #error
3559 + #if
3560 + #ifdef
3561 + #ifndef
3562 + #include
3563 + #pragma message
3564 + #undef
3565 + #warning
3566 +In addition, these new command line options are supported:
3567 + -D <symbol> Define symbol for preprocessor use
3568 + -li Create preprocessed output file (*.i)
3569 + -P Preprocess only and create preprocessor output file (*.i)
3570 +
3571 +Table Compiler: Fixed a problem where the equals operator within an
3572 +expression
3573 +did not work properly.
3574 +
3575 +Updated iASL to use the current versions of Bison/Flex. Updated the
3576 +Windows
3577 +project file to invoke these tools from the standard location. ACPICA BZ
3578 +904.
3579 +Versions supported:
3580 + Flex for Windows: V2.5.4
3581 + Bison for Windows: V2.4.1
3582 +
3583 +----------------------------------------
3584 +15 February 2012. Summary of changes for version 20120215:
3585 +
3586 +
3587 +1) ACPICA Core Subsystem:
3588 +
3589 +There have been some major changes to the sleep/wake support code, as
3590 +described below (a - e).
3591 +
3592 +a) The AcpiLeaveSleepState has been split into two interfaces, similar to
3593 +AcpiEnterSleepStatePrep and AcpiEnterSleepState. The new interface is
3594 +AcpiLeaveSleepStatePrep. This allows the host to perform actions between
3595 +the
3596 +time the _BFS method is called and the _WAK method is called. NOTE: all
3597 +hosts
3598 +must update their wake/resume code or else sleep/wake will not work
3599 +properly.
3600 +Rafael Wysocki.
3601 +
3602 +b) In AcpiLeaveSleepState, now enable all runtime GPEs before calling the
3603 +_WAK
3604 +method. Some machines require that the GPEs are enabled before the _WAK
3605 +method
3606 +is executed. Thomas Renninger.
3607 +
3608 +c) In AcpiLeaveSleepState, now always clear the WAK_STS (wake status)
3609 +bit.
3610 +Some BIOS code assumes that WAK_STS will be cleared on resume and use it
3611 +to
3612 +determine whether the system is rebooting or resuming. Matthew Garrett.
3613 +
3614 +d) Move the invocations of _GTS (Going To Sleep) and _BFS (Back From
3615 +Sleep) to
3616 +match the ACPI specification requirement. Rafael Wysocki.
3617 +
3618 +e) Implemented full support for the ACPI 5.0 SleepStatus and SleepControl
3619 +registers within the V5 FADT. This support adds two new files:
3620 +hardware/hwesleep.c implements the support for the new registers. Moved
3621 +all
3622 +sleep/wake external interfaces to hardware/hwxfsleep.c.
3623 +
3624 +
3625 +Added a new OSL interface for ACPI table overrides,
3626 +AcpiOsPhysicalTableOverride. This interface allows the host to override a
3627 +table via a physical address, instead of the logical address required by
3628 +AcpiOsTableOverride. This simplifies the host implementation. Initial
3629 +implementation by Thomas Renninger. The ACPICA implementation creates a
3630 +single
3631 +shared function for table overrides that attempts both a logical and a
3632 +physical override.
3633 +
3634 +Expanded the OSL memory read/write interfaces to 64-bit data
3635 +(AcpiOsReadMemory, AcpiOsWriteMemory.) This enables full 64-bit memory
3636 +transfer support for GAS register structures passed to AcpiRead and
3637 +AcpiWrite.
3638 +
3639 +Implemented the ACPI_REDUCED_HARDWARE option to allow the creation of a
3640 +custom
3641 +build of ACPICA that supports only the ACPI 5.0 reduced hardware (SoC)
3642 +model.
3643 +See the ACPICA reference for details. ACPICA BZ 942. This option removes
3644 +about
3645 +10% of the code and 5% of the static data, and the following hardware
3646 +ACPI
3647 +features become unavailable:
3648 + PM Event and Control registers
3649 + SCI interrupt (and handler)
3650 + Fixed Events
3651 + General Purpose Events (GPEs)
3652 + Global Lock
3653 + ACPI PM timer
3654 + FACS table (Waking vectors and Global Lock)
3655 +
3656 +Updated the unix tarball directory structure to match the ACPICA git
3657 +source
3658 +tree. This ensures that the generic unix makefiles work properly (in
3659 +generate/unix). Also updated the Linux makefiles to match. ACPICA BZ
3660 +867.
3661 +
3662 +Updated the return value of the _REV predefined method to integer value 5
3663 +to
3664 +reflect ACPI 5.0 support.
3665 +
3666 +Moved the external ACPI PM timer interface prototypes to the public
3667 +acpixf.h
3668 +file where they belong.
3669 +
3670 +Example Code and Data Size: These are the sizes for the OS-independent
3671 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3672 +debug
3673 +version of the code includes the debug output trace mechanism and has a
3674 +much
3675 +larger code and data size.
3676 +
3677 + Previous Release:
3678 + Non-Debug Version: 92.8K Code, 24.9K Data, 117.7K Total
3679 + Debug Version: 171.7K Code, 72.9K Data, 244.5K Total
3680 + Current Release:
3681 + Non-Debug Version: 93.0K Code, 25.0K Data, 118.0K Total
3682 + Debug Version: 172.5K Code, 73.2K Data, 245.7K Total
3683 +
3684 +
3685 +2) iASL Compiler/Disassembler and Tools:
3686 +
3687 +Disassembler: Fixed a problem with the new ACPI 5.0 serial resource
3688 +descriptors (I2C, SPI, UART) where the resource produce/consumer bit was
3689 +incorrectly displayed.
3690 +
3691 +AcpiHelp: Add display of ACPI/PNP device IDs that are defined in the ACPI
3692 +specification.
3693 +
3694 +----------------------------------------
3695 +11 January 2012. Summary of changes for version 20120111:
3696 +
3697 +
3698 +1) ACPICA Core Subsystem:
3699 +
3700 +Implemented a new mechanism to allow host device drivers to check for
3701 +address
3702 +range conflicts with ACPI Operation Regions. Both SystemMemory and
3703 +SystemIO
3704 +address spaces are supported. A new external interface,
3705 +AcpiCheckAddressRange,
3706 +allows drivers to check an address range against the ACPI namespace. See
3707 +the
3708 +ACPICA reference for additional details. Adds one new file,
3709 +utilities/utaddress.c. Lin Ming, Bob Moore.
3710 +
3711 +Fixed several issues with the ACPI 5.0 FADT support: Add the sleep
3712 +Control
3713 +and
3714 +Status registers, update the ACPI 5.0 flags, and update internal data
3715 +structures to handle an FADT larger than 256 bytes. The size of the ACPI
3716 +5.0
3717 +FADT is 268 bytes.
3718 +
3719 +Updated all ACPICA copyrights and signons to 2012. Added the 2012
3720 +copyright to
3721 +all module headers and signons, including the standard Linux header. This
3722 +affects virtually every file in the ACPICA core subsystem, iASL compiler,
3723 +and
3724 +all ACPICA utilities.
3725 +
3726 +Example Code and Data Size: These are the sizes for the OS-independent
3727 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3728 +debug
3729 +version of the code includes the debug output trace mechanism and has a
3730 +much
3731 +larger code and data size.
3732 +
3733 + Previous Release:
3734 + Non-Debug Version: 92.3K Code, 24.9K Data, 117.2K Total
3735 + Debug Version: 170.8K Code, 72.6K Data, 243.4K Total
3736 + Current Release:
3737 + Non-Debug Version: 92.8K Code, 24.9K Data, 117.7K Total
3738 + Debug Version: 171.7K Code, 72.9K Data, 244.5K Total
3739 +
3740 +
3741 +2) iASL Compiler/Disassembler and Tools:
3742 +
3743 +Disassembler: fixed a problem with the automatic resource tag generation
3744 +support. Fixes a problem where the resource tags are inadvertently not
3745 +constructed if the table being disassembled contains external references
3746 +to
3747 +control methods. Moved the actual construction of the tags to after the
3748 +final
3749 +namespace is constructed (after 2nd parse is invoked due to external
3750 +control
3751 +method references.) ACPICA BZ 941.
3752 +
3753 +Table Compiler: Make all "generic" operators caseless. These are the
3754 +operators
3755 +like UINT8, String, etc. Making these caseless improves ease-of-use.
3756 +ACPICA BZ
3757 +934.
3758 +
3759 +----------------------------------------
3760 +23 November 2011. Summary of changes for version 20111123:
3761 +
3762 +0) ACPI 5.0 Support:
3763 +
3764 +This release contains full support for the ACPI 5.0 specification, as
3765 +summarized below.
3766 +
3767 +Reduced Hardware Support:
3768 +-------------------------
3769 +
3770 +This support allows for ACPI systems without the usual ACPI hardware.
3771 +This
3772 +support is enabled by a flag in the revision 5 FADT. If it is set, ACPICA
3773 +will
3774 +not attempt to initialize or use any of the usual ACPI hardware. Note,
3775 +when
3776 +this flag is set, all of the following ACPI hardware is assumed to be not
3777 +present and is not initialized or accessed:
3778 +
3779 + General Purpose Events (GPEs)
3780 + Fixed Events (PM1a/PM1b and PM Control)
3781 + Power Management Timer and Console Buttons (power/sleep)
3782 + Real-time Clock Alarm
3783 + Global Lock
3784 + System Control Interrupt (SCI)
3785 + The FACS is assumed to be non-existent
3786 +
3787 +ACPI Tables:
3788 +------------
3789 +
3790 +All new tables and updates to existing tables are fully supported in the
3791 +ACPICA headers (for use by device drivers), the disassembler, and the
3792 +iASL
3793 +Data Table Compiler. ACPI 5.0 defines these new tables:
3794 +
3795 + BGRT /* Boot Graphics Resource Table */
3796 + DRTM /* Dynamic Root of Trust for Measurement table */
3797 + FPDT /* Firmware Performance Data Table */
3798 + GTDT /* Generic Timer Description Table */
3799 + MPST /* Memory Power State Table */
3800 + PCCT /* Platform Communications Channel Table */
3801 + PMTT /* Platform Memory Topology Table */
3802 + RASF /* RAS Feature table */
3803 +
3804 +Operation Regions/SpaceIDs:
3805 +---------------------------
3806 +
3807 +All new operation regions are fully supported by the iASL compiler, the
3808 +disassembler, and the ACPICA runtime code (for dispatch to region
3809 +handlers.)
3810 +The new operation region Space IDs are:
3811 +
3812 + GeneralPurposeIo
3813 + GenericSerialBus
3814 +
3815 +Resource Descriptors:
3816 +---------------------
3817 +
3818 +All new ASL resource descriptors are fully supported by the iASL
3819 +compiler,
3820 +the
3821 +ASL/AML disassembler, and the ACPICA runtime Resource Manager code
3822 +(including
3823 +all new predefined resource tags). New descriptors are:
3824 +
3825 + FixedDma
3826 + GpioIo
3827 + GpioInt
3828 + I2cSerialBus
3829 + SpiSerialBus
3830 + UartSerialBus
3831 +
3832 +ASL/AML Operators, New and Modified:
3833 +------------------------------------
3834 +
3835 +One new operator is added, the Connection operator, which is used to
3836 +associate
3837 +a GeneralPurposeIo or GenericSerialBus resource descriptor with
3838 +individual
3839 +field objects within an operation region. Several new protocols are
3840 +associated
3841 +with the AccessAs operator. All are fully supported by the iASL compiler,
3842 +disassembler, and runtime ACPICA AML interpreter:
3843 +
3844 + Connection // Declare Field Connection
3845 +attributes
3846 + AccessAs: AttribBytes (n) // Read/Write N-Bytes Protocol
3847 + AccessAs: AttribRawBytes (n) // Raw Read/Write N-Bytes
3848 +Protocol
3849 + AccessAs: AttribRawProcessBytes (n) // Raw Process Call Protocol
3850 + RawDataBuffer // Data type for Vendor Data
3851 +fields
3852 +
3853 +Predefined ASL/AML Objects:
3854 +---------------------------
3855 +
3856 +All new predefined objects/control-methods are supported by the iASL
3857 +compiler
3858 +and the ACPICA runtime validation/repair (arguments and return values.)
3859 +New
3860 +predefined names include the following:
3861 +
3862 +Standard Predefined Names (Objects or Control Methods):
3863 + _AEI, _CLS, _CPC, _CWS, _DEP,
3864 + _DLM, _EVT, _GCP, _CRT, _GWS,
3865 + _HRV, _PRE, _PSE, _SRT, _SUB.
3866 +
3867 +Resource Tags (Names used to access individual fields within resource
3868 +descriptors):
3869 + _DBT, _DPL, _DRS, _END, _FLC,
3870 + _IOR, _LIN, _MOD, _PAR, _PHA,
3871 + _PIN, _PPI, _POL, _RXL, _SLV,
3872 + _SPE, _STB, _TXL, _VEN.
3873 +
3874 +ACPICA External Interfaces:
3875 +---------------------------
3876 +
3877 +Several new interfaces have been defined for use by ACPI-related device
3878 +drivers and other host OS services:
3879 +
3880 +AcpiAcquireMutex and AcpiReleaseMutex: These interfaces allow the host OS
3881 +to
3882 +acquire and release AML mutexes that are defined in the DSDT/SSDT tables
3883 +provided by the BIOS. They are intended to be used in conjunction with
3884 +the
3885 +ACPI 5.0 _DLM (Device Lock Method) in order to provide transaction-level
3886 +mutual exclusion with the AML code/interpreter.
3887 +
3888 +AcpiGetEventResources: Returns the (formatted) resource descriptors as
3889 +defined
3890 +by the ACPI 5.0 _AEI object (ACPI Event Information). This object
3891 +provides
3892 +resource descriptors associated with hardware-reduced platform events,
3893 +similar
3894 +to the AcpiGetCurrentResources interface.
3895 +
3896 +Operation Region Handlers: For General Purpose IO and Generic Serial Bus
3897 +operation regions, information about the Connection() object and any
3898 +optional
3899 +length information is passed to the region handler within the Context
3900 +parameter.
3901 +
3902 +AcpiBufferToResource: This interface converts a raw AML buffer containing
3903 +a
3904 +resource template or resource descriptor to the ACPI_RESOURCE internal
3905 +format
3906 +suitable for use by device drivers. Can be used by an operation region
3907 +handler
3908 +to convert the Connection() buffer object into a ACPI_RESOURCE.
3909 +
3910 +Miscellaneous/Tools/TestSuites:
3911 +-------------------------------
3912 +
3913 +Support for extended _HID names (Four alpha characters instead of three).
3914 +Support for ACPI 5.0 features in the AcpiExec and AcpiHelp utilities.
3915 +Support for ACPI 5.0 features in the ASLTS test suite.
3916 +Fully updated documentation (ACPICA and iASL reference documents.)
3917 +
3918 +ACPI Table Definition Language:
3919 +-------------------------------
3920 +
3921 +Support for this language was implemented and released as a subsystem of
3922 +the
3923 +iASL compiler in 2010. (See the iASL compiler User Guide.)
3924 +
3925 +
3926 +Non-ACPI 5.0 changes for this release:
3927 +--------------------------------------
3928 +
3929 +1) ACPICA Core Subsystem:
3930 +
3931 +Fix a problem with operation region declarations where a failure can
3932 +occur
3933 +if
3934 +the region name and an argument that evaluates to an object (such as the
3935 +region address) are in different namespace scopes. Lin Ming, ACPICA BZ
3936 +937.
3937 +
3938 +Do not abort an ACPI table load if an invalid space ID is found within.
3939 +This
3940 +will be caught later if the offending method is executed. ACPICA BZ 925.
3941 +
3942 +Fixed an issue with the FFixedHW space ID where the ID was not always
3943 +recognized properly (Both ACPICA and iASL). ACPICA BZ 926.
3944 +
3945 +Fixed a problem with the 32-bit generation of the unix-specific OSL
3946 +(osunixxf.c). Lin Ming, ACPICA BZ 936.
3947 +
3948 +Several changes made to enable generation with the GCC 4.6 compiler.
3949 +ACPICA BZ
3950 +935.
3951 +
3952 +New error messages: Unsupported I/O requests (not 8/16/32 bit), and
3953 +Index/Bank
3954 +field registers out-of-range.
3955 +
3956 +2) iASL Compiler/Disassembler and Tools:
3957 +
3958 +iASL: Implemented the __PATH__ operator, which returns the full pathname
3959 +of
3960 +the current source file.
3961 +
3962 +AcpiHelp: Automatically display expanded keyword information for all ASL
3963 +operators.
3964 +
3965 +Debugger: Add "Template" command to disassemble/dump resource template
3966 +buffers.
3967 +
3968 +Added a new master script to generate and execute the ASLTS test suite.
3969 +Automatically handles 32- and 64-bit generation. See tests/aslts.sh
3970 +
3971 +iASL: Fix problem with listing generation during processing of the
3972 +Switch()
3973 +operator where AML listing was disabled until the entire Switch block was
3974 +completed.
3975 +
3976 +iASL: Improve support for semicolon statement terminators. Fix "invalid
3977 +character" message for some cases when the semicolon is used. Semicolons
3978 +are
3979 +now allowed after every <Term> grammar element. ACPICA BZ 927.
3980 +
3981 +iASL: Fixed some possible aliasing warnings during generation. ACPICA BZ
3982 +923.
3983 +
3984 +Disassembler: Fix problem with disassembly of the DataTableRegion
3985 +operator
3986 +where an inadvertent "Unhandled deferred opcode" message could be
3987 +generated.
3988 +
3989 +3) Example Code and Data Size
3990 +
3991 +These are the sizes for the OS-independent acpica.lib produced by the
3992 +Microsoft Visual C++ 9.0 32-bit compiler. The debug version of the code
3993 +includes the debug output trace mechanism and has a much larger code and
3994 +data
3995 +size.
3996 +
3997 + Previous Release:
3998 + Non-Debug Version: 90.2K Code, 23.9K Data, 114.1K Total
3999 + Debug Version: 165.6K Code, 68.4K Data, 234.0K Total
4000 + Current Release:
4001 + Non-Debug Version: 92.3K Code, 24.9K Data, 117.2K Total
4002 + Debug Version: 170.8K Code, 72.6K Data, 243.4K Total
4003 +
4004 +----------------------------------------
4005 +22 September 2011. Summary of changes for version 20110922:
4006 +
4007 +0) ACPI 5.0 News:
4008 +
4009 +Support for ACPI 5.0 in ACPICA has been underway for several months and
4010 +will
4011 +be released at the same time that ACPI 5.0 is officially released.
4012 +
4013 +The ACPI 5.0 specification is on track for release in the next few
4014 +months.
4015 +
4016 +1) ACPICA Core Subsystem:
4017 +
4018 +Fixed a problem where the maximum sleep time for the Sleep() operator was
4019 +intended to be limited to two seconds, but was inadvertently limited to
4020 +20
4021 +seconds instead.
4022 +
4023 +Linux and Unix makefiles: Added header file dependencies to ensure
4024 +correct
4025 +generation of ACPICA core code and utilities. Also simplified the
4026 +makefiles
4027 +considerably through the use of the vpath variable to specify search
4028 +paths.
4029 +ACPICA BZ 924.
4030 +
4031 +2) iASL Compiler/Disassembler and Tools:
4032 +
4033 +iASL: Implemented support to check the access length for all fields
4034 +created to
4035 +access named Resource Descriptor fields. For example, if a resource field
4036 +is
4037 +defined to be two bits, a warning is issued if a CreateXxxxField() is
4038 +used
4039 +with an incorrect bit length. This is implemented for all current
4040 +resource
4041 +descriptor names. ACPICA BZ 930.
4042 +
4043 +Disassembler: Fixed a byte ordering problem with the output of 24-bit and
4044 +56-
4045 +bit integers.
4046 +
4047 +iASL: Fixed a couple of issues associated with variable-length package
4048 +objects. 1) properly handle constants like One, Ones, Zero -- do not make
4049 +a
4050 +VAR_PACKAGE when these are used as a package length. 2) Allow the
4051 +VAR_PACKAGE
4052 +opcode (in addition to PACKAGE) when validating object types for
4053 +predefined
4054 +names.
4055 +
4056 +iASL: Emit statistics for all output files (instead of just the ASL input
4057 +and
4058 +AML output). Includes listings, hex files, etc.
4059 +
4060 +iASL: Added -G option to the table compiler to allow the compilation of
4061 +custom
4062 +ACPI tables. The only part of a table that is required is the standard
4063 +36-
4064 +byte
4065 +ACPI header.
4066 +
4067 +AcpiXtract: Ported to the standard ACPICA environment (with ACPICA
4068 +headers),
4069 +which also adds correct 64-bit support. Also, now all output filenames
4070 +are
4071 +completely lower case.
4072 +
4073 +AcpiExec: Ignore any non-AML tables (tables other than DSDT or SSDT) when
4074 +loading table files. A warning is issued for any such tables. The only
4075 +exception is an FADT. This also fixes a possible fault when attempting to
4076 +load
4077 +non-AML tables. ACPICA BZ 932.
4078 +
4079 +AcpiHelp: Added the AccessAs and Offset operators. Fixed a problem where
4080 +a
4081 +missing table terminator could cause a fault when using the -p option.
4082 +
4083 +AcpiSrc: Fixed a possible divide-by-zero fault when generating file
4084 +statistics.
4085 +
4086 +3) Example Code and Data Size
4087 +
4088 +These are the sizes for the OS-independent acpica.lib produced by the
4089 +Microsoft Visual C++ 9.0 32-bit compiler. The debug version of the code
4090 +includes the debug output trace mechanism and has a much larger code and
4091 +data
4092 +size.
4093 +
4094 + Previous Release (VC 9.0):
4095 + Non-Debug Version: 90.2K Code, 23.9K Data, 114.1K Total
4096 + Debug Version: 165.6K Code, 68.4K Data, 234.0K Total
4097 + Current Release (VC 9.0):
4098 + Non-Debug Version: 90.2K Code, 23.9K Data, 114.1K Total
4099 + Debug Version: 165.6K Code, 68.4K Data, 234.0K Total
4100 +
4101 +
4102 +----------------------------------------
4103 +23 June 2011. Summary of changes for version 20110623:
4104 +
6 4105 1) ACPI CA Core Subsystem:
7 4106
8 -ASL Load() operator: Reinstate most restrictions on the incoming ACPI table
4107 +Updated the predefined name repair mechanism to not attempt repair of a
4108 +_TSS
4109 +return object if a _PSS object is present. We can only sort the _TSS
4110 +return
4111 +package if there is no _PSS within the same scope. This is because if
4112 +_PSS
4113 +is
4114 +present, the ACPI specification dictates that the _TSS Power Dissipation
4115 +field
4116 +is to be ignored, and therefore some BIOSs leave garbage values in the
4117 +_TSS
4118 +Power field(s). In this case, it is best to just return the _TSS package
4119 +as-
4120 +is. Reported by, and fixed with assistance from Fenghua Yu.
4121 +
4122 +Added an option to globally disable the control method return value
4123 +validation
4124 +and repair. This runtime option can be used to disable return value
4125 +repair
4126 +if
4127 +this is causing a problem on a particular machine. Also added an option
4128 +to
4129 +AcpiExec (-dr) to set this disable flag.
4130 +
4131 +All makefiles and project files: Major changes to improve generation of
4132 +ACPICA
4133 +tools. ACPICA BZ 912:
4134 + Reduce default optimization levels to improve compatibility
4135 + For Linux, add strict-aliasing=0 for gcc 4
4136 + Cleanup and simplify use of command line defines
4137 + Cleanup multithread library support
4138 + Improve usage messages
4139 +
4140 +Linux-specific header: update handling of THREAD_ID and pthread. For the
4141 +32-
4142 +bit case, improve casting to eliminate possible warnings, especially with
4143 +the
4144 +acpica tools.
4145 +
4146 +Example Code and Data Size: These are the sizes for the OS-independent
4147 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
4148 +debug
4149 +version of the code includes the debug output trace mechanism and has a
4150 +much
4151 +larger code and data size.
4152 +
4153 + Previous Release (VC 9.0):
4154 + Non-Debug Version: 90.1K Code, 23.9K Data, 114.0K Total
4155 + Debug Version: 165.6K Code, 68.4K Data, 234.0K Total
4156 + Current Release (VC 9.0):
4157 + Non-Debug Version: 90.2K Code, 23.9K Data, 114.1K Total
4158 + Debug Version: 165.6K Code, 68.4K Data, 234.0K Total
4159 +
4160 +2) iASL Compiler/Disassembler and Tools:
4161 +
4162 +With this release, a new utility named "acpihelp" has been added to the
4163 +ACPICA
4164 +package. This utility summarizes the ACPI specification chapters for the
4165 +ASL
4166 +and AML languages. It generates under Linux/Unix as well as Windows, and
4167 +provides the following functionality:
4168 + Find/display ASL operator(s) -- with description and syntax.
4169 + Find/display ASL keyword(s) -- with exact spelling and descriptions.
4170 + Find/display ACPI predefined name(s) -- with description, number
4171 + of arguments, and the return value data type.
4172 + Find/display AML opcode name(s) -- with opcode, arguments, and
4173 +grammar.
4174 + Decode/display AML opcode -- with opcode name, arguments, and
4175 +grammar.
4176 +
4177 +Service Layers: Make multi-thread support configurable. Conditionally
4178 +compile
4179 +the multi-thread support so that threading libraries will not be linked
4180 +if
4181 +not
4182 +necessary. The only tool that requires multi-thread support is AcpiExec.
4183 +
4184 +iASL: Update yyerrror/AslCompilerError for "const" errors. Newer versions
4185 +of
4186 +Bison appear to want the interface to yyerror to be a const char * (or at
4187 +least this is a problem when generating iASL on some systems.) ACPICA BZ
4188 +923
4189 +Pierre Lejeune.
4190 +
4191 +Tools: Fix for systems where O_BINARY is not defined. Only used for
4192 +Windows
4193 +versions of the tools.
4194 +
4195 +----------------------------------------
4196 +27 May 2011. Summary of changes for version 20110527:
4197 +
4198 +1) ACPI CA Core Subsystem:
4199 +
4200 +ASL Load() operator: Reinstate most restrictions on the incoming ACPI
4201 +table
9 4202 signature. Now, only allow SSDT, OEMx, and a null signature. History:
10 4203 1) Originally, we checked the table signature for "SSDT" or "PSDT".
11 4204 (PSDT is now obsolete.)
12 4205 2) We added support for OEMx tables, signature "OEM" plus a fourth
13 4206 "don't care" character.
14 4207 3) Valid tables were encountered with a null signature, so we just
15 4208 gave up on validating the signature, (05/2008).
16 4209 4) We encountered non-AML tables such as the MADT, which caused
17 4210 interpreter errors and kernel faults. So now, we once again allow
18 4211 only SSDT, OEMx, and now, also a null signature. (05/2011).
19 4212
20 -Added the missing _TDL predefined name to the global name list in order to
21 -enable validation. Affects both the core ACPICA code and the iASL compiler.
4213 +Added the missing _TDL predefined name to the global name list in order
4214 +to
4215 +enable validation. Affects both the core ACPICA code and the iASL
4216 +compiler.
22 4217
23 4218 Example Code and Data Size: These are the sizes for the OS-independent
24 -acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug
25 -version of the code includes the debug output trace mechanism and has a much
4219 +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
4220 +debug
4221 +version of the code includes the debug output trace mechanism and has a
4222 +much
26 4223 larger code and data size.
27 4224
28 4225 Previous Release (VC 9.0):
29 4226 Non-Debug Version: 90.0K Code, 23.8K Data, 113.8K Total
30 4227 Debug Version: 164.5K Code, 68.0K Data, 232.5K Total
31 4228 Current Release (VC 9.0):
32 4229 Non-Debug Version: 90.1K Code, 23.9K Data, 114.0K Total
33 4230 Debug Version: 165.6K Code, 68.4K Data, 234.0K Total
34 4231
35 4232 2) iASL Compiler/Disassembler and Tools:
36 4233
37 -Debugger/AcpiExec: Implemented support for "complex" method arguments on the
38 -debugger command line. This adds support beyond simple integers -- including
4234 +Debugger/AcpiExec: Implemented support for "complex" method arguments on
4235 +the
4236 +debugger command line. This adds support beyond simple integers --
4237 +including
39 4238 Strings, Buffers, and Packages. Includes support for nested packages.
40 -Increased the default command line buffer size to accommodate these arguments.
4239 +Increased the default command line buffer size to accommodate these
4240 +arguments.
41 4241 See the ACPICA reference for details and syntax. ACPICA BZ 917.
42 4242
43 -Debugger/AcpiExec: Implemented support for "default" method arguments for the
44 -Execute/Debug command. Now, the debugger will always invoke a control method
45 -with the required number of arguments -- even if the command line specifies
46 -none or insufficient arguments. It uses default integer values for any missing
4243 +Debugger/AcpiExec: Implemented support for "default" method arguments for
4244 +the
4245 +Execute/Debug command. Now, the debugger will always invoke a control
4246 +method
4247 +with the required number of arguments -- even if the command line
4248 +specifies
4249 +none or insufficient arguments. It uses default integer values for any
4250 +missing
47 4251 arguments. Also fixes a bug where only six method arguments maximum were
48 4252 supported instead of the required seven.
49 4253
50 -Debugger/AcpiExec: Add a maximum buffer length parameter to AcpiOsGetLine and
4254 +Debugger/AcpiExec: Add a maximum buffer length parameter to AcpiOsGetLine
4255 +and
51 4256 also return status in order to prevent buffer overruns. See the ACPICA
52 4257 reference for details and syntax. ACPICA BZ 921
53 4258
54 4259 iASL: Cleaned up support for Berkeley yacc. A general cleanup of code and
55 4260 makefiles to simplify support for the two different but similar parser
56 4261 generators, bison and yacc.
57 4262
58 -Updated the generic unix makefile for gcc 4. The default gcc version is now
4263 +Updated the generic unix makefile for gcc 4. The default gcc version is
4264 +now
59 4265 expected to be 4 or greater, since options specific to gcc 4 are used.
60 4266
61 4267 ----------------------------------------
62 4268 13 April 2011. Summary of changes for version 20110413:
63 4269
64 4270 1) ACPI CA Core Subsystem:
65 4271
66 -Implemented support to execute a so-called "orphan" _REG method under the EC
67 -device. This change will force the execution of a _REG method underneath the
4272 +Implemented support to execute a so-called "orphan" _REG method under the
68 4273 EC
4274 +device. This change will force the execution of a _REG method underneath
4275 +the
4276 +EC
69 4277 device even if there is no corresponding operation region of type
70 4278 EmbeddedControl. Fixes a problem seen on some machines and apparently is
71 4279 compatible with Windows behavior. ACPICA BZ 875.
72 4280
73 -Added more predefined methods that are eligible for automatic NULL package
74 -element removal. This change adds another group of predefined names to the
4281 +Added more predefined methods that are eligible for automatic NULL
4282 +package
4283 +element removal. This change adds another group of predefined names to
4284 +the
75 4285 list
76 4286 of names that can be repaired by having NULL package elements dynamically
77 -removed. This group are those methods that return a single variable-length
78 -package containing simple data types such as integers, buffers, strings. This
79 -includes: _ALx, _BCL, _CID,_ DOD, _EDL, _FIX, _PCL, _PLD, _PMD, _PRx, _PSL,
4287 +removed. This group are those methods that return a single variable-
4288 +length
4289 +package containing simple data types such as integers, buffers, strings.
4290 +This
4291 +includes: _ALx, _BCL, _CID,_ DOD, _EDL, _FIX, _PCL, _PLD, _PMD, _PRx,
4292 +_PSL,
80 4293 _Sx,
81 4294 and _TZD. ACPICA BZ 914.
82 4295
83 4296 Split and segregated all internal global lock functions to a new file,
84 4297 evglock.c.
85 4298
86 -Updated internal address SpaceID for DataTable regions. Moved this internal
4299 +Updated internal address SpaceID for DataTable regions. Moved this
4300 +internal
87 4301 space
88 -id in preparation for ACPI 5.0 changes that will include some new space IDs.
4302 +id in preparation for ACPI 5.0 changes that will include some new space
4303 +IDs.
89 4304 This
90 4305 change should not affect user/host code.
91 4306
92 4307 Example Code and Data Size: These are the sizes for the OS-independent
93 4308 acpica.lib
94 -produced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug version of
95 -the code includes the debug output trace mechanism and has a much larger code
4309 +produced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug
4310 +version of
4311 +the code includes the debug output trace mechanism and has a much larger
4312 +code
96 4313 and
97 4314 data size.
98 4315
99 4316 Previous Release (VC 9.0):
100 4317 Non-Debug Version: 89.8K Code, 23.8K Data, 113.6K Total
101 4318 Debug Version: 164.2K Code, 67.9K Data, 232.1K Total
102 4319 Current Release (VC 9.0):
103 4320 Non-Debug Version: 90.0K Code, 23.8K Data, 113.8K Total
104 4321 Debug Version: 164.5K Code, 68.0K Data, 232.5K Total
105 4322
106 4323 2) iASL Compiler/Disassembler and Tools:
107 4324
108 -iASL/DTC: Major update for new grammar features. Allow generic data types in
109 -custom ACPI tables. Field names are now optional. Any line can be split to
110 -multiple lines using the continuation char (\). Large buffers now use line-
4325 +iASL/DTC: Major update for new grammar features. Allow generic data types
4326 +in
4327 +custom ACPI tables. Field names are now optional. Any line can be split
4328 +to
4329 +multiple lines using the continuation char (\). Large buffers now use
4330 +line-
111 4331 continuation character(s) and no colon on the continuation lines. See the
112 4332 grammar
113 -update in the iASL compiler reference. ACPI BZ 910,911. Lin Ming, Bob Moore.
4333 +update in the iASL compiler reference. ACPI BZ 910,911. Lin Ming, Bob
4334 +Moore.
114 4335
115 -iASL: Mark ASL "Return()" and the simple "Return" as "Null" return statements.
116 -Since the parser stuffs a "zero" as the return value for these statements (due
4336 +iASL: Mark ASL "Return()" and the simple "Return" as "Null" return
4337 +statements.
4338 +Since the parser stuffs a "zero" as the return value for these statements
4339 +(due
117 4340 to
118 -the underlying AML grammar), they were seen as "return with value" by the iASL
119 -semantic checking. They are now seen correctly as "null" return statements.
4341 +the underlying AML grammar), they were seen as "return with value" by the
4342 +iASL
4343 +semantic checking. They are now seen correctly as "null" return
4344 +statements.
120 4345
121 -iASL: Check if a_REG declaration has a corresponding Operation Region. Adds a
122 -check for each _REG to ensure that there is in fact a corresponding operation
4346 +iASL: Check if a_REG declaration has a corresponding Operation Region.
4347 +Adds a
4348 +check for each _REG to ensure that there is in fact a corresponding
4349 +operation
123 4350 region declaration in the same scope. If not, the _REG method is not very
124 4351 useful
125 4352 since it probably won't be executed. ACPICA BZ 915.
126 4353
127 -iASL/DTC: Finish support for expression evaluation. Added a new expression
4354 +iASL/DTC: Finish support for expression evaluation. Added a new
4355 +expression
128 4356 parser
129 4357 that implements c-style operator precedence and parenthesization. ACPICA
130 4358 bugzilla
131 4359 908.
132 4360
133 -Disassembler/DTC: Remove support for () and <> style comments in data tables.
4361 +Disassembler/DTC: Remove support for () and <> style comments in data
4362 +tables.
134 4363 Now
135 -that DTC has full expression support, we don't want to have comment strings
4364 +that DTC has full expression support, we don't want to have comment
4365 +strings
136 4366 that
137 -start with a parentheses or a less-than symbol. Now, only the standard /* and
4367 +start with a parentheses or a less-than symbol. Now, only the standard /*
4368 +and
138 4369 //
139 4370 comments are supported, as well as the bracket [] comments.
140 4371
141 4372 AcpiXtract: Fix for RSDP and dynamic SSDT extraction. These tables have
142 4373 "unusual"
143 -headers in the acpidump file. Update the header validation to support these
144 -tables. Problem introduced in previous AcpiXtract version in the change to
4374 +headers in the acpidump file. Update the header validation to support
4375 +these
4376 +tables. Problem introduced in previous AcpiXtract version in the change
4377 +to
145 4378 support "wrong checksum" error messages emitted by acpidump utility.
146 4379
147 -iASL: Add a * option to generate all template files (as a synonym for ALL) as
4380 +iASL: Add a * option to generate all template files (as a synonym for
4381 +ALL)
4382 +as
148 4383 in
149 4384 "iasl -T *" or "iasl -T ALL".
150 4385
151 -iASL/DTC: Do not abort compiler on fatal errors. We do not want to completely
152 -abort the compiler on "fatal" errors, simply should abort the current compile.
4386 +iASL/DTC: Do not abort compiler on fatal errors. We do not want to
4387 +completely
4388 +abort the compiler on "fatal" errors, simply should abort the current
4389 +compile.
153 4390 This allows multiple compiles with a single (possibly wildcard) compiler
154 4391 invocation.
155 4392
156 4393 ----------------------------------------
157 4394 16 March 2011. Summary of changes for version 20110316:
158 4395
159 4396 1) ACPI CA Core Subsystem:
160 4397
161 -Fixed a problem caused by a _PRW method appearing at the namespace root scope
162 -during the setup of wake GPEs. A fault could occur if a _PRW directly under
4398 +Fixed a problem caused by a _PRW method appearing at the namespace root
4399 +scope
4400 +during the setup of wake GPEs. A fault could occur if a _PRW directly
4401 +under
163 4402 the
164 4403 root object was passed to the AcpiSetupGpeForWake interface. Lin Ming.
165 4404
166 -Implemented support for "spurious" Global Lock interrupts. On some systems, a
167 -global lock interrupt can occur without the pending flag being set. Upon a GL
168 -interrupt, we now ensure that a thread is actually waiting for the lock before
4405 +Implemented support for "spurious" Global Lock interrupts. On some
4406 +systems, a
4407 +global lock interrupt can occur without the pending flag being set. Upon
4408 +a
4409 +GL
4410 +interrupt, we now ensure that a thread is actually waiting for the lock
4411 +before
169 4412 signaling GL availability. Rafael Wysocki, Bob Moore.
170 4413
171 4414 Example Code and Data Size: These are the sizes for the OS-independent
172 4415 acpica.lib
173 -produced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug version of
174 -the code includes the debug output trace mechanism and has a much larger code
4416 +produced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug
4417 +version of
4418 +the code includes the debug output trace mechanism and has a much larger
4419 +code
175 4420 and
176 4421 data size.
177 4422
178 4423 Previous Release (VC 9.0):
179 4424 Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total
180 4425 Debug Version: 163.9K Code, 67.5K Data, 231.4K Total
181 4426 Current Release (VC 9.0):
182 4427 Non-Debug Version: 89.8K Code, 23.8K Data, 113.6K Total
183 4428 Debug Version: 164.2K Code, 67.9K Data, 232.1K Total
184 4429
185 4430 2) iASL Compiler/Disassembler and Tools:
186 4431
187 -Implemented full support for the "SLIC" ACPI table. Includes support in the
188 -header files, disassembler, table compiler, and template generator. Bob Moore,
4432 +Implemented full support for the "SLIC" ACPI table. Includes support in
4433 +the
4434 +header files, disassembler, table compiler, and template generator. Bob
4435 +Moore,
189 4436 Lin Ming.
190 4437
191 -AcpiXtract: Correctly handle embedded comments and messages from AcpiDump.
192 -Apparently some or all versions of acpidump will occasionally emit a comment
4438 +AcpiXtract: Correctly handle embedded comments and messages from
4439 +AcpiDump.
4440 +Apparently some or all versions of acpidump will occasionally emit a
4441 +comment
193 4442 like
194 4443 "Wrong checksum", etc., into the dump file. This was causing problems for
195 4444 AcpiXtract. ACPICA BZ 905.
196 4445
197 -iASL: Fix the Linux makefile by removing an inadvertent double file inclusion.
4446 +iASL: Fix the Linux makefile by removing an inadvertent double file
4447 +inclusion.
198 4448 ACPICA BZ 913.
199 4449
200 4450 AcpiExec: Update installation of operation region handlers. Install one
201 4451 handler
202 -for a user-defined address space. This is used by the ASL test suite (ASLTS).
4452 +for a user-defined address space. This is used by the ASL test suite
4453 +(ASLTS).
203 4454
204 4455 ----------------------------------------
205 4456 11 February 2011. Summary of changes for version 20110211:
206 4457
207 4458 1) ACPI CA Core Subsystem:
208 4459
209 -Added a mechanism to defer _REG methods for some early-installed handlers.
210 -Most user handlers should be installed before call to AcpiEnableSubsystem.
4460 +Added a mechanism to defer _REG methods for some early-installed
4461 +handlers.
4462 +Most user handlers should be installed before call to
4463 +AcpiEnableSubsystem.
211 4464 However, Event handlers and region handlers should be installed after
212 -AcpiInitializeObjects. Override handlers for the "default" regions should be
4465 +AcpiInitializeObjects. Override handlers for the "default" regions should
4466 +be
213 4467 installed early, however. This change executes all _REG methods for the
214 4468 default regions (Memory/IO/PCI/DataTable) simultaneously to prevent any
215 4469 chicken/egg issues between them. ACPICA BZ 848.
216 4470
217 -Implemented an optimization for GPE detection. This optimization will simply
4471 +Implemented an optimization for GPE detection. This optimization will
4472 +simply
218 4473 ignore GPE registers that contain no enabled GPEs -- there is no need to
219 4474 read the register since this information is available internally. This
220 -becomes more important on machines with a large GPE space. ACPICA bugzilla
4475 +becomes more important on machines with a large GPE space. ACPICA
4476 +bugzilla
221 4477 884. Lin Ming. Suggestion from Joe Liu.
222 4478
223 -Removed all use of the highly unreliable FADT revision field. The revision
224 -number in the FADT has been found to be completely unreliable and cannot be
225 -trusted. Only the actual table length can be used to infer the version. This
226 -change updates the ACPICA core and the disassembler so that both no longer
4479 +Removed all use of the highly unreliable FADT revision field. The
4480 +revision
4481 +number in the FADT has been found to be completely unreliable and cannot
4482 +be
4483 +trusted. Only the actual table length can be used to infer the version.
4484 +This
4485 +change updates the ACPICA core and the disassembler so that both no
4486 +longer
227 4487 even look at the FADT version and instead depend solely upon the FADT
228 4488 length.
229 4489
230 4490 Fix an unresolved name issue for the no-debug and no-error-message source
231 -generation cases. The _AcpiModuleName was left undefined in these cases, but
4491 +generation cases. The _AcpiModuleName was left undefined in these cases,
4492 +but
232 4493 it is actually needed as a parameter to some interfaces. Define
233 4494 _AcpiModuleName as a null string in these cases. ACPICA Bugzilla 888.
234 4495
235 4496 Split several large files (makefiles and project files updated)
236 4497 utglobal.c -> utdecode.c
237 4498 dbcomds.c -> dbmethod.c dbnames.c
238 4499 dsopcode.c -> dsargs.c dscontrol.c
239 4500 dsload.c -> dsload2.c
240 4501 aslanalyze.c -> aslbtypes.c aslwalks.c
241 4502
242 4503 Example Code and Data Size: These are the sizes for the OS-independent
243 4504 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
244 -debug version of the code includes the debug output trace mechanism and has
4505 +debug version of the code includes the debug output trace mechanism and
4506 +has
245 4507 a much larger code and data size.
246 4508
247 4509 Previous Release (VC 9.0):
248 4510 Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total
249 4511 Debug Version: 163.9K Code, 67.5K Data, 231.4K Total
250 4512 Current Release (VC 9.0):
251 4513 Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total
252 4514 Debug Version: 163.9K Code, 67.5K Data, 231.4K Total
253 4515
254 4516 2) iASL Compiler/Disassembler and Tools:
255 4517
256 4518 iASL: Implemented the predefined macros __LINE__, __FILE__, and __DATE__.
257 4519 These are useful C-style macros with the standard definitions. ACPICA
258 4520 bugzilla 898.
259 4521
260 -iASL/DTC: Added support for integer expressions and labels. Support for full
261 -expressions for all integer fields in all ACPI tables. Support for labels in
4522 +iASL/DTC: Added support for integer expressions and labels. Support for
4523 +full
4524 +expressions for all integer fields in all ACPI tables. Support for labels
4525 +in
262 4526 "generic" portions of tables such as UEFI. See the iASL reference manual.
263 4527
264 4528 Debugger: Added a command to display the status of global handlers. The
265 4529 "handlers" command will display op region, fixed event, and miscellaneous
266 -global handlers. installation status -- and for op regions, whether default
4530 +global handlers. installation status -- and for op regions, whether
4531 +default
267 4532 or user-installed handler will be used.
268 4533
269 -iASL: Warn if reserved method incorrectly returns a value. Many predefined
270 -names are defined such that they do not return a value. If implemented as a
4534 +iASL: Warn if reserved method incorrectly returns a value. Many
4535 +predefined
4536 +names are defined such that they do not return a value. If implemented as
4537 +a
271 4538 method, issue a warning if such a name explicitly returns a value. ACPICA
272 4539 Bugzilla 855.
273 4540
274 -iASL: Added detection of GPE method name conflicts. Detects a conflict where
275 -there are two GPE methods of the form _Lxy and _Exy in the same scope. (For
4541 +iASL: Added detection of GPE method name conflicts. Detects a conflict
4542 +where
4543 +there are two GPE methods of the form _Lxy and _Exy in the same scope.
4544 +(For
276 4545 example, _L1D and _E1D in the same scope.) ACPICA bugzilla 848.
277 4546
278 4547 iASL/DTC: Fixed a couple input scanner issues with comments and line
279 -numbers. Comment remover could get confused and miss a comment ending. Fixed
4548 +numbers. Comment remover could get confused and miss a comment ending.
4549 +Fixed
280 4550 a problem with line counter maintenance.
281 4551
282 -iASL/DTC: Reduced the severity of some errors from fatal to error. There is
4552 +iASL/DTC: Reduced the severity of some errors from fatal to error. There
4553 +is
283 4554 no need to abort on simple errors within a field definition.
284 4555
285 -Debugger: Simplified the output of the help command. All help output now in
4556 +Debugger: Simplified the output of the help command. All help output now
4557 +in
286 4558 a single screen, instead of help subcommands. ACPICA Bugzilla 897.
287 4559
288 4560 ----------------------------------------
289 4561 12 January 2011. Summary of changes for version 20110112:
290 4562
291 4563 1) ACPI CA Core Subsystem:
292 4564
293 -Fixed a race condition between method execution and namespace walks that can
4565 +Fixed a race condition between method execution and namespace walks that
4566 +can
294 4567 possibly cause a fault. The problem was apparently introduced in version
295 -20100528 as a result of a performance optimization that reduces the number of
4568 +20100528 as a result of a performance optimization that reduces the
4569 +number
4570 +of
296 4571 namespace walks upon method exit by using the delete_namespace_subtree
297 -function instead of the delete_namespace_by_owner function used previously.
4572 +function instead of the delete_namespace_by_owner function used
4573 +previously.
298 4574 Bug is a missing namespace lock in the delete_namespace_subtree function.
299 4575 dana.myers@oracle.com
300 4576
301 4577 Fixed several issues and a possible fault with the automatic "serialized"
302 -method support. History: This support changes a method to "serialized" on the
4578 +method support. History: This support changes a method to "serialized" on
4579 +the
303 4580 fly if the method generates an AE_ALREADY_EXISTS error, indicating the
304 -possibility that it cannot handle reentrancy. This fix repairs a couple of
4581 +possibility that it cannot handle reentrancy. This fix repairs a couple
4582 +of
305 4583 issues seen in the field, especially on machines with many cores:
306 4584
307 4585 1) Delete method children only upon the exit of the last thread,
308 4586 so as to not delete objects out from under other running threads
309 4587 (and possibly causing a fault.)
310 4588 2) Set the "serialized" bit for the method only upon the exit of the
311 4589 Last thread, so as to not cause deadlock when running threads
312 4590 attempt to exit.
313 4591 3) Cleanup the use of the AML "MethodFlags" and internal method flags
314 4592 so that there is no longer any confusion between the two.
315 4593
316 4594 Lin Ming, Bob Moore. Reported by dana.myers@oracle.com.
317 4595
318 -Debugger: Now lock the namespace for duration of a namespace dump. Prevents
4596 +Debugger: Now lock the namespace for duration of a namespace dump.
4597 +Prevents
319 4598 issues if the namespace is changing dynamically underneath the debugger.
320 4599 Especially affects temporary namespace nodes, since the debugger displays
321 4600 these also.
322 4601
323 4602 Updated the ordering of include files. The ACPICA headers should appear
324 -before any compiler-specific headers (stdio.h, etc.) so that acenv.h can set
325 -any necessary compiler-specific defines, etc. Affects the ACPI-related tools
4603 +before any compiler-specific headers (stdio.h, etc.) so that acenv.h can
4604 +set
4605 +any necessary compiler-specific defines, etc. Affects the ACPI-related
4606 +tools
326 4607 and utilities.
327 4608
328 -Updated all ACPICA copyrights and signons to 2011. Added the 2011 copyright
329 -to all module headers and signons, including the Linux header. This affects
4609 +Updated all ACPICA copyrights and signons to 2011. Added the 2011
4610 +copyright
4611 +to all module headers and signons, including the Linux header. This
4612 +affects
330 4613 virtually every file in the ACPICA core subsystem, iASL compiler, and all
331 4614 utilities.
332 4615
333 4616 Added project files for MS Visual Studio 2008 (VC++ 9.0). The original
334 -project files for VC++ 6.0 are now obsolete. New project files can be found
4617 +project files for VC++ 6.0 are now obsolete. New project files can be
4618 +found
335 4619 under acpica/generate/msvc9. See acpica/generate/msvc9/readme.txt for
336 4620 details.
337 4621
338 4622 Example Code and Data Size: These are the sizes for the OS-independent
339 4623 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
340 -debug version of the code includes the debug output trace mechanism and has a
4624 +debug version of the code includes the debug output trace mechanism and
4625 +has a
341 4626 much larger code and data size.
342 4627
343 4628 Previous Release (VC 6.0):
344 4629 Non-Debug Version: 89.8K Code, 18.9K Data, 108.7K Total
345 4630 Debug Version: 166.6K Code, 52.1K Data, 218.7K Total
346 4631 Current Release (VC 9.0):
347 4632 Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total
348 4633 Debug Version: 163.9K Code, 67.5K Data, 231.4K Total
349 4634
350 4635 2) iASL Compiler/Disassembler and Tools:
351 4636
352 -iASL: Added generic data types to the Data Table compiler. Add "generic" data
353 -types such as UINT32, String, Unicode, etc., to simplify the generation of
4637 +iASL: Added generic data types to the Data Table compiler. Add "generic"
4638 +data
4639 +types such as UINT32, String, Unicode, etc., to simplify the generation
4640 +of
354 4641 platform-defined tables such as UEFI. Lin Ming.
355 4642
356 -iASL: Added listing support for the Data Table Compiler. Adds listing support
4643 +iASL: Added listing support for the Data Table Compiler. Adds listing
4644 +support
357 4645 (-l) to display actual binary output for each line of input code.
358 4646
359 4647 ----------------------------------------
360 4648 09 December 2010. Summary of changes for version 20101209:
361 4649
362 4650 1) ACPI CA Core Subsystem:
363 4651
364 -Completed the major overhaul of the GPE support code that was begun in July
4652 +Completed the major overhaul of the GPE support code that was begun in
4653 +July
365 4654 2010. Major features include: removal of _PRW execution in ACPICA (host
366 4655 executes _PRWs anyway), cleanup of "wake" GPE interfaces and processing,
367 -changes to existing interfaces, simplification of GPE handler operation, and
4656 +changes to existing interfaces, simplification of GPE handler operation,
4657 +and
368 4658 a handful of new interfaces:
369 4659
370 4660 AcpiUpdateAllGpes
371 4661 AcpiFinishGpe
372 4662 AcpiSetupGpeForWake
373 4663 AcpiSetGpeWakeMask
374 4664 One new file, evxfgpe.c to consolidate all external GPE interfaces.
375 4665
376 4666 See the ACPICA Programmer Reference for full details and programming
377 -information. See the new section 4.4 "General Purpose Event (GPE) Support"
378 -for a full overview, and section 8.7 "ACPI General Purpose Event Management"
379 -for programming details. ACPICA BZ 858,870,877. Matthew Garrett, Lin Ming,
4667 +information. See the new section 4.4 "General Purpose Event (GPE)
4668 +Support"
4669 +for a full overview, and section 8.7 "ACPI General Purpose Event
4670 +Management"
4671 +for programming details. ACPICA BZ 858,870,877. Matthew Garrett, Lin
4672 +Ming,
380 4673 Bob Moore, Rafael Wysocki.
381 4674
382 -Implemented a new GPE feature for Windows compatibility, the "Implicit Wake
383 -GPE Notify". This feature will automatically issue a Notify(2) on a device
4675 +Implemented a new GPE feature for Windows compatibility, the "Implicit
4676 +Wake
4677 +GPE Notify". This feature will automatically issue a Notify(2) on a
4678 +device
384 4679 when a Wake GPE is received if there is no corresponding GPE method or
385 4680 handler. ACPICA BZ 870.
386 4681
387 -Fixed a problem with the Scope() operator during table parse and load phase.
388 -During load phase (table load or method execution), the scope operator should
389 -not enter the target into the namespace. Instead, it should open a new scope
4682 +Fixed a problem with the Scope() operator during table parse and load
4683 +phase.
4684 +During load phase (table load or method execution), the scope operator
4685 +should
4686 +not enter the target into the namespace. Instead, it should open a new
4687 +scope
390 4688 at the target location. Linux BZ 19462, ACPICA BZ 882.
391 4689
392 4690 Example Code and Data Size: These are the sizes for the OS-independent
393 4691 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
394 -debug version of the code includes the debug output trace mechanism and has a
4692 +debug version of the code includes the debug output trace mechanism and
4693 +has a
395 4694 much larger code and data size.
396 4695
397 4696 Previous Release:
398 4697 Non-Debug Version: 89.8K Code, 18.9K Data, 108.7K Total
399 4698 Debug Version: 166.6K Code, 52.1K Data, 218.7K Total
400 4699 Current Release:
401 4700 Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total
402 4701 Debug Version: 166.3K Code, 52.1K Data, 218.4K Total
403 4702
404 4703 2) iASL Compiler/Disassembler and Tools:
405 4704
406 -iASL: Relax the alphanumeric restriction on _CID strings. These strings are
407 -"bus-specific" per the ACPI specification, and therefore any characters are
408 -acceptable. The only checks that can be performed are for a null string and
4705 +iASL: Relax the alphanumeric restriction on _CID strings. These strings
4706 +are
4707 +"bus-specific" per the ACPI specification, and therefore any characters
4708 +are
4709 +acceptable. The only checks that can be performed are for a null string
4710 +and
409 4711 perhaps for a leading asterisk. ACPICA BZ 886.
410 4712
411 4713 iASL: Fixed a problem where a syntax error that caused a premature EOF
412 4714 condition on the source file emitted a very confusing error message. The
413 4715 premature EOF is now detected correctly. ACPICA BZ 891.
414 4716
415 -Disassembler: Decode the AccessSize within a Generic Address Structure (byte
4717 +Disassembler: Decode the AccessSize within a Generic Address Structure
4718 +(byte
416 4719 access, word access, etc.) Note, this field does not allow arbitrary bit
417 4720 access, the size is encoded as 1=byte, 2=word, 3=dword, and 4=qword.
418 4721
419 -New: AcpiNames utility - Example namespace dump utility. Shows an example of
4722 +New: AcpiNames utility - Example namespace dump utility. Shows an example
4723 +of
420 4724 ACPICA configuration for a minimal namespace dump utility. Uses table and
421 -namespace managers, but no AML interpreter. Does not add any functionality
4725 +namespace managers, but no AML interpreter. Does not add any
4726 +functionality
422 4727 over AcpiExec, it is a subset of AcpiExec. The purpose is to show how to
423 4728 partition and configure ACPICA. ACPICA BZ 883.
424 4729
425 -AML Debugger: Increased the debugger buffer size for method return objects.
426 -Was 4K, increased to 16K. Also enhanced error messages for debugger method
4730 +AML Debugger: Increased the debugger buffer size for method return
4731 +objects.
4732 +Was 4K, increased to 16K. Also enhanced error messages for debugger
4733 +method
427 4734 execution, including the buffer overflow case.
428 4735
429 4736 ----------------------------------------
430 4737 13 October 2010. Summary of changes for version 20101013:
431 4738
432 4739 1) ACPI CA Core Subsystem:
433 4740
434 -Added support to clear the PCIEXP_WAKE event. When clearing ACPI events, now
4741 +Added support to clear the PCIEXP_WAKE event. When clearing ACPI events,
4742 +now
435 4743 clear the PCIEXP_WAKE_STS bit in the ACPI PM1 Status Register, via
436 4744 HwClearAcpiStatus. Original change from Colin King. ACPICA BZ 880.
437 4745
438 -Changed the type of the predefined namespace object _TZ from ThermalZone to
439 -Device. This was found to be confusing to the host software that processes
440 -the various thermal zones, since _TZ is not really a ThermalZone. However, a
4746 +Changed the type of the predefined namespace object _TZ from ThermalZone
4747 +to
4748 +Device. This was found to be confusing to the host software that
4749 +processes
4750 +the various thermal zones, since _TZ is not really a ThermalZone.
4751 +However,
4752 +a
441 4753 Notify() can still be performed on it. ACPICA BZ 876. Suggestion from Rui
442 4754 Zhang.
443 4755
444 4756 Added Windows Vista SP2 to the list of supported _OSI strings. The actual
445 4757 string is "Windows 2006 SP2".
446 4758
447 -Eliminated duplicate code in AcpiUtExecute* functions. Now that the nsrepair
4759 +Eliminated duplicate code in AcpiUtExecute* functions. Now that the
4760 +nsrepair
448 4761 code automatically repairs _HID-related strings, this type of code is no
449 -longer needed in Execute_HID, Execute_CID, and Execute_UID. ACPICA BZ 878.
4762 +longer needed in Execute_HID, Execute_CID, and Execute_UID. ACPICA BZ
4763 +878.
450 4764
451 4765 Example Code and Data Size: These are the sizes for the OS-independent
452 4766 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
453 -debug version of the code includes the debug output trace mechanism and has a
4767 +debug version of the code includes the debug output trace mechanism and
4768 +has a
454 4769 much larger code and data size.
455 4770
456 4771 Previous Release:
457 4772 Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total
458 4773 Debug Version: 166.3K Code, 52.1K Data, 218.4K Total
459 4774 Current Release:
460 4775 Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total
461 4776 Debug Version: 166.3K Code, 52.1K Data, 218.4K Total
462 4777
463 4778 2) iASL Compiler/Disassembler and Tools:
464 4779
465 -iASL: Implemented additional compile-time validation for _HID strings. The
466 -non-hex prefix (such as "PNP" or "ACPI") must be uppercase, and the length of
467 -the string must be exactly seven or eight characters. For both _HID and _CID
4780 +iASL: Implemented additional compile-time validation for _HID strings.
4781 +The
4782 +non-hex prefix (such as "PNP" or "ACPI") must be uppercase, and the
4783 +length
4784 +of
4785 +the string must be exactly seven or eight characters. For both _HID and
4786 +_CID
468 4787 strings, all characters must be alphanumeric. ACPICA BZ 874.
469 4788
470 4789 iASL: Allow certain "null" resource descriptors. Some BIOS code creates
471 -descriptors that are mostly or all zeros, with the expectation that they will
472 -be filled in at runtime. iASL now allows this as long as there is a "resource
4790 +descriptors that are mostly or all zeros, with the expectation that they
4791 +will
4792 +be filled in at runtime. iASL now allows this as long as there is a
4793 +"resource
473 4794 tag" (name) associated with the descriptor, which gives the ASL a handle
474 4795 needed to modify the descriptor. ACPICA BZ 873.
475 4796
476 -Added single-thread support to the generic Unix application OSL. Primarily
477 -for iASL support, this change removes the use of semaphores in the single-
4797 +Added single-thread support to the generic Unix application OSL.
4798 +Primarily
4799 +for iASL support, this change removes the use of semaphores in the
4800 +single-
478 4801 threaded ACPICA tools/applications - increasing performance. The
479 4802 _MULTI_THREADED option was replaced by the (reverse) ACPI_SINGLE_THREADED
480 4803 option. ACPICA BZ 879.
481 4804
482 -AcpiExec: several fixes for the 64-bit version. Adds XSDT support and support
4805 +AcpiExec: several fixes for the 64-bit version. Adds XSDT support and
4806 +support
483 4807 for 64-bit DSDT/FACS addresses in the FADT. Lin Ming.
484 4808
485 4809 iASL: Moved all compiler messages to a new file, aslmessages.h.
486 4810
487 4811 ----------------------------------------
488 4812 15 September 2010. Summary of changes for version 20100915:
489 4813
490 4814 1) ACPI CA Core Subsystem:
491 4815
492 -Removed the AcpiOsDerivePciId OSL interface. The various host implementations
4816 +Removed the AcpiOsDerivePciId OSL interface. The various host
4817 +implementations
493 4818 of this function were not OS-dependent and are now obsolete and can be
494 4819 removed from all host OSLs. This function has been replaced by
495 4820 AcpiHwDerivePciId, which is now part of the ACPICA core code.
496 4821 AcpiHwDerivePciId has been implemented without recursion. Adds one new
497 4822 module, hwpci.c. ACPICA BZ 857.
498 4823
499 4824 Implemented a dynamic repair for _HID and _CID strings. The following
500 4825 problems are now repaired at runtime: 1) Remove a leading asterisk in the
501 4826 string, and 2) the entire string is uppercased. Both repairs are in
502 -accordance with the ACPI specification and will simplify host driver code.
4827 +accordance with the ACPI specification and will simplify host driver
4828 +code.
503 4829 ACPICA BZ 871.
504 4830
505 4831 The ACPI_THREAD_ID type is no longer configurable, internally it is now
506 -always UINT64. This simplifies the ACPICA code, especially any printf output.
4832 +always UINT64. This simplifies the ACPICA code, especially any printf
4833 +output.
507 4834 UINT64 is the only common data type for all thread_id types across all
508 -operating systems. It is now up to the host OSL to cast the native thread_id
509 -type to UINT64 before returning the value to ACPICA (via AcpiOsGetThreadId).
4835 +operating systems. It is now up to the host OSL to cast the native
4836 +thread_id
4837 +type to UINT64 before returning the value to ACPICA (via
4838 +AcpiOsGetThreadId).
510 4839 Lin Ming, Bob Moore.
511 4840
512 -Added the ACPI_INLINE type to enhance the ACPICA configuration. The "inline"
513 -keyword is not standard across compilers, and this type allows inline to be
4841 +Added the ACPI_INLINE type to enhance the ACPICA configuration. The
4842 +"inline"
4843 +keyword is not standard across compilers, and this type allows inline to
4844 +be
514 4845 configured on a per-compiler basis. Lin Ming.
515 4846
516 -Made the system global AcpiGbl_SystemAwakeAndRunning publically available.
517 -Added an extern for this boolean in acpixf.h. Some hosts utilize this value
4847 +Made the system global AcpiGbl_SystemAwakeAndRunning publically
4848 +available.
4849 +Added an extern for this boolean in acpixf.h. Some hosts utilize this
4850 +value
518 4851 during suspend/restore operations. ACPICA BZ 869.
519 4852
520 -All code that implements error/warning messages with the "ACPI:" prefix has
4853 +All code that implements error/warning messages with the "ACPI:" prefix
4854 +has
521 4855 been moved to a new module, utxferror.c.
522 4856
523 -The UINT64_OVERLAY was moved to utmath.c, which is the only module where it
4857 +The UINT64_OVERLAY was moved to utmath.c, which is the only module where
4858 +it
524 4859 is used. ACPICA BZ 829. Lin Ming, Bob Moore.
525 4860
526 4861 Example Code and Data Size: These are the sizes for the OS-independent
527 4862 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
528 -debug version of the code includes the debug output trace mechanism and has a
4863 +debug version of the code includes the debug output trace mechanism and
4864 +has a
529 4865 much larger code and data size.
530 4866
531 4867 Previous Release:
532 4868 Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total
533 4869 Debug Version: 165.1K Code, 51.9K Data, 217.0K Total
534 4870 Current Release:
535 4871 Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total
536 4872 Debug Version: 166.3K Code, 52.1K Data, 218.4K Total
537 4873
538 4874 2) iASL Compiler/Disassembler and Tools:
539 4875
540 -iASL/Disassembler: Write ACPI errors to stderr instead of the output file.
541 -This keeps the output files free of random error messages that may originate
542 -from within the namespace/interpreter code. Used this opportunity to merge
4876 +iASL/Disassembler: Write ACPI errors to stderr instead of the output
4877 +file.
4878 +This keeps the output files free of random error messages that may
4879 +originate
4880 +from within the namespace/interpreter code. Used this opportunity to
4881 +merge
543 4882 all ACPI:-style messages into a single new module, utxferror.c. ACPICA BZ
544 4883 866. Lin Ming, Bob Moore.
545 4884
546 -Tools: update some printfs for ansi warnings on size_t. Handle width change
4885 +Tools: update some printfs for ansi warnings on size_t. Handle width
4886 +change
547 4887 of size_t on 32-bit versus 64-bit generations. Lin Ming.
548 4888
549 4889 ----------------------------------------
550 4890 06 August 2010. Summary of changes for version 20100806:
551 4891
552 4892 1) ACPI CA Core Subsystem:
553 4893
554 -Designed and implemented a new host interface to the _OSI support code. This
555 -will allow the host to dynamically add or remove multiple _OSI strings, as
556 -well as install an optional handler that is called for each _OSI invocation.
557 -Also added a new AML debugger command, 'osi' to display and modify the global
558 -_OSI string table, and test support in the AcpiExec utility. See the ACPICA
4894 +Designed and implemented a new host interface to the _OSI support code.
4895 +This
4896 +will allow the host to dynamically add or remove multiple _OSI strings,
4897 +as
4898 +well as install an optional handler that is called for each _OSI
4899 +invocation.
4900 +Also added a new AML debugger command, 'osi' to display and modify the
4901 +global
4902 +_OSI string table, and test support in the AcpiExec utility. See the
4903 +ACPICA
559 4904 reference manual for full details. Lin Ming, Bob Moore. ACPICA BZ 836.
560 4905 New Functions:
561 4906 AcpiInstallInterface - Add an _OSI string.
562 4907 AcpiRemoveInterface - Delete an _OSI string.
563 4908 AcpiInstallInterfaceHandler - Install optional _OSI handler.
564 4909 Obsolete Functions:
565 4910 AcpiOsValidateInterface - no longer used.
566 4911 New Files:
567 4912 source/components/utilities/utosi.c
568 4913
569 4914 Re-introduced the support to enable multi-byte transfers for Embedded
570 -Controller (EC) operation regions. A reported problem was found to be a bug
571 -in the host OS, not in the multi-byte support. Previously, the maximum data
572 -size passed to the EC operation region handler was a single byte. There are
573 -often EC Fields larger than one byte that need to be transferred, and it is
574 -useful for the EC driver to lock these as a single transaction. This change
4915 +Controller (EC) operation regions. A reported problem was found to be a
4916 +bug
4917 +in the host OS, not in the multi-byte support. Previously, the maximum
4918 +data
4919 +size passed to the EC operation region handler was a single byte. There
4920 +are
4921 +often EC Fields larger than one byte that need to be transferred, and it
4922 +is
4923 +useful for the EC driver to lock these as a single transaction. This
4924 +change
575 4925 enables single transfers larger than 8 bits. This effectively changes the
576 4926 access to the EC space from ByteAcc to AnyAcc, and will probably require
577 -changes to the host OS Embedded Controller driver to enable 16/32/64/256-bit
4927 +changes to the host OS Embedded Controller driver to enable 16/32/64/256-
4928 +bit
578 4929 transfers in addition to 8-bit transfers. Alexey Starikovskiy, Lin Ming.
579 4930
580 4931 Fixed a problem with the prototype for AcpiOsReadPciConfiguration. The
581 4932 prototype in acpiosxf.h had the output value pointer as a (void *).
582 4933 It should be a (UINT64 *). This may affect some host OSL code.
583 4934
584 -Fixed a couple problems with the recently modified Linux makefiles for iASL
4935 +Fixed a couple problems with the recently modified Linux makefiles for
4936 +iASL
585 4937 and AcpiExec. These new makefiles place the generated object files in the
586 -local directory so that there can be no collisions between the files that are
4938 +local directory so that there can be no collisions between the files that
4939 +are
587 4940 shared between them that are compiled with different options.
588 4941
589 4942 Example Code and Data Size: These are the sizes for the OS-independent
590 4943 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
591 -debug version of the code includes the debug output trace mechanism and has a
4944 +debug version of the code includes the debug output trace mechanism and
4945 +has a
592 4946 much larger code and data size.
593 4947
594 4948 Previous Release:
595 4949 Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total
596 4950 Debug Version: 164.0K Code, 51.5K Data, 215.5K Total
597 4951 Current Release:
598 4952 Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total
599 4953 Debug Version: 165.1K Code, 51.9K Data, 217.0K Total
600 4954
601 4955 2) iASL Compiler/Disassembler and Tools:
602 4956
603 -iASL/Disassembler: Added a new option (-da, "disassemble all") to load the
4957 +iASL/Disassembler: Added a new option (-da, "disassemble all") to load
4958 +the
604 4959 namespace from and disassemble an entire group of AML files. Useful for
605 -loading all of the AML tables for a given machine (DSDT, SSDT1...SSDTn) and
4960 +loading all of the AML tables for a given machine (DSDT, SSDT1...SSDTn)
4961 +and
606 4962 disassembling with one simple command. ACPICA BZ 865. Lin Ming.
607 4963
608 -iASL: Allow multiple invocations of -e option. This change allows multiple
609 -uses of -e on the command line: "-e ssdt1.dat -e ssdt2.dat". ACPICA BZ 834.
4964 +iASL: Allow multiple invocations of -e option. This change allows
4965 +multiple
4966 +uses of -e on the command line: "-e ssdt1.dat -e ssdt2.dat". ACPICA BZ
4967 +834.
610 4968 Lin Ming.
611 4969
612 4970 ----------------------------------------
613 4971 02 July 2010. Summary of changes for version 20100702:
614 4972
615 4973 1) ACPI CA Core Subsystem:
616 4974
617 4975 Implemented several updates to the recently added GPE reference count
618 -support. The model for "wake" GPEs is changing to give the host OS complete
619 -control of these GPEs. Eventually, the ACPICA core will not execute any _PRW
620 -methods, since the host already must execute them. Also, additional changes
4976 +support. The model for "wake" GPEs is changing to give the host OS
4977 +complete
4978 +control of these GPEs. Eventually, the ACPICA core will not execute any
4979 +_PRW
4980 +methods, since the host already must execute them. Also, additional
4981 +changes
621 4982 were made to help ensure that the reference counts are kept in proper
622 4983 synchronization with reality. Rafael J. Wysocki.
623 4984
624 4985 1) Ensure that GPEs are not enabled twice during initialization.
625 4986 2) Ensure that GPE enable masks stay in sync with the reference count.
626 4987 3) Do not inadvertently enable GPEs when writing GPE registers.
627 4988 4) Remove the internal wake reference counter and add new AcpiGpeWakeup
628 4989 interface. This interface will set or clear individual GPEs for wakeup.
629 -5) Remove GpeType argument from AcpiEnable and AcpiDisable. These interfaces
4990 +5) Remove GpeType argument from AcpiEnable and AcpiDisable. These
4991 +interfaces
630 4992 are now used for "runtime" GPEs only.
631 4993
632 -Changed the behavior of the GPE install/remove handler interfaces. The GPE is
633 -no longer disabled during this process, as it was found to cause problems on
4994 +Changed the behavior of the GPE install/remove handler interfaces. The
4995 +GPE
4996 +is
4997 +no longer disabled during this process, as it was found to cause problems
4998 +on
634 4999 some machines. Rafael J. Wysocki.
635 5000
636 5001 Reverted a change introduced in version 20100528 to enable Embedded
637 -Controller multi-byte transfers. This change was found to cause problems with
5002 +Controller multi-byte transfers. This change was found to cause problems
5003 +with
638 5004 Index Fields and possibly Bank Fields. It will be reintroduced when these
639 5005 problems have been resolved.
640 5006
641 -Fixed a problem with references to Alias objects within Package Objects. A
5007 +Fixed a problem with references to Alias objects within Package Objects.
5008 +A
642 5009 reference to an Alias within the definition of a Package was not always
643 -resolved properly. Aliases to objects like Processors, Thermal zones, etc.
644 -were resolved to the actual object instead of a reference to the object as it
5010 +resolved properly. Aliases to objects like Processors, Thermal zones,
5011 +etc.
5012 +were resolved to the actual object instead of a reference to the object
5013 +as
5014 +it
645 5015 should be. Package objects are only allowed to contain integer, string,
646 5016 buffer, package, and reference objects. Redhat bugzilla 608648.
647 5017
648 5018 Example Code and Data Size: These are the sizes for the OS-independent
649 5019 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
650 -debug version of the code includes the debug output trace mechanism and has a
5020 +debug version of the code includes the debug output trace mechanism and
5021 +has a
651 5022 much larger code and data size.
652 5023
653 5024 Previous Release:
654 5025 Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total
655 5026 Debug Version: 164.1K Code, 51.5K Data, 215.6K Total
656 5027 Current Release:
657 5028 Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total
658 5029 Debug Version: 164.0K Code, 51.5K Data, 215.5K Total
659 5030
660 5031 2) iASL Compiler/Disassembler and Tools:
661 5032
662 5033 iASL: Implemented a new compiler subsystem to allow definition and
663 -compilation of the non-AML ACPI tables such as FADT, MADT, SRAT, etc. These
5034 +compilation of the non-AML ACPI tables such as FADT, MADT, SRAT, etc.
5035 +These
664 5036 are called "ACPI Data Tables", and the new compiler is the "Data Table
665 5037 Compiler". This compiler is intended to simplify the existing error-prone
666 5038 process of creating these tables for the BIOS, as well as allowing the
667 -disassembly, modification, recompilation, and override of existing ACPI data
5039 +disassembly, modification, recompilation, and override of existing ACPI
5040 +data
668 5041 tables. See the iASL User Guide for detailed information.
669 5042
670 -iASL: Implemented a new Template Generator option in support of the new Data
5043 +iASL: Implemented a new Template Generator option in support of the new
5044 +Data
671 5045 Table Compiler. This option will create examples of all known ACPI tables
672 5046 that can be used as the basis for table development. See the iASL
673 5047 documentation and the -T option.
674 5048
675 5049 Disassembler and headers: Added support for the WDDT ACPI table (Watchdog
676 5050 Descriptor Table).
677 5051
678 5052 Updated the Linux makefiles for iASL and AcpiExec to place the generated
679 5053 object files in the local directory so that there can be no collisions
680 5054 between the shared files between them that are generated with different
681 5055 options.
682 5056
683 -Added support for Mac OS X in the Unix OSL used for iASL and AcpiExec. Use
5057 +Added support for Mac OS X in the Unix OSL used for iASL and AcpiExec.
5058 +Use
684 5059 the #define __APPLE__ to enable this support.
685 5060
686 5061 ----------------------------------------
687 5062 28 May 2010. Summary of changes for version 20100528:
688 5063
689 5064 Note: The ACPI 4.0a specification was released on April 5, 2010 and is
690 5065 available at www.acpi.info. This is primarily an errata release.
691 5066
692 5067 1) ACPI CA Core Subsystem:
693 5068
694 -Undefined ACPI tables: We are looking for the definitions for the following
5069 +Undefined ACPI tables: We are looking for the definitions for the
5070 +following
695 5071 ACPI tables that have been seen in the field: ATKG, IEIT, GSCI.
696 5072
697 -Implemented support to enable multi-byte transfers for Embedded Controller
698 -(EC) operation regions. Previously, the maximum data size passed to the EC
699 -operation region handler was a single byte. There are often EC Fields larger
700 -than one byte that need to be transferred, and it is useful for the EC driver
701 -to lock these as a single transaction. This change enables single transfers
702 -larger than 8 bits. This effectively changes the access to the EC space from
703 -ByteAcc to AnyAcc, and will probably require changes to the host OS Embedded
704 -Controller driver to enable 16/32/64/256-bit transfers in addition to 8-bit
5073 +Implemented support to enable multi-byte transfers for Embedded
5074 +Controller
5075 +(EC) operation regions. Previously, the maximum data size passed to the
5076 +EC
5077 +operation region handler was a single byte. There are often EC Fields
5078 +larger
5079 +than one byte that need to be transferred, and it is useful for the EC
5080 +driver
5081 +to lock these as a single transaction. This change enables single
5082 +transfers
5083 +larger than 8 bits. This effectively changes the access to the EC space
5084 +from
5085 +ByteAcc to AnyAcc, and will probably require changes to the host OS
5086 +Embedded
5087 +Controller driver to enable 16/32/64/256-bit transfers in addition to 8-
5088 +bit
705 5089 transfers. Alexey Starikovskiy, Lin Ming
706 5090
707 -Implemented a performance enhancement for namespace search and access. This
708 -change enhances the performance of namespace searches and walks by adding a
709 -backpointer to the parent in each namespace node. On large namespaces, this
710 -change can improve overall ACPI performance by up to 9X. Adding a pointer to
711 -each namespace node increases the overall size of the internal namespace by
5091 +Implemented a performance enhancement for namespace search and access.
5092 +This
5093 +change enhances the performance of namespace searches and walks by adding
5094 +a
5095 +backpointer to the parent in each namespace node. On large namespaces,
5096 +this
5097 +change can improve overall ACPI performance by up to 9X. Adding a pointer
5098 +to
5099 +each namespace node increases the overall size of the internal namespace
5100 +by
712 5101 about 5%, since each namespace entry usually consists of both a namespace
713 5102 node and an ACPI operand object. However, this is the first growth of the
714 5103 namespace in ten years. ACPICA bugzilla 817. Alexey Starikovskiy.
715 5104
716 -Implemented a performance optimization that reduces the number of namespace
717 -walks. On control method exit, only walk the namespace if the method is known
718 -to have created namespace objects outside of its local scope. Previously, the
719 -entire namespace was traversed on each control method exit. This change can
720 -improve overall ACPI performance by up to 3X. Alexey Starikovskiy, Bob Moore.
5105 +Implemented a performance optimization that reduces the number of
5106 +namespace
5107 +walks. On control method exit, only walk the namespace if the method is
5108 +known
5109 +to have created namespace objects outside of its local scope. Previously,
5110 +the
5111 +entire namespace was traversed on each control method exit. This change
5112 +can
5113 +improve overall ACPI performance by up to 3X. Alexey Starikovskiy, Bob
5114 +Moore.
721 5115
722 -Added support to truncate I/O addresses to 16 bits for Windows compatibility.
5116 +Added support to truncate I/O addresses to 16 bits for Windows
5117 +compatibility.
723 5118 Some ASL code has been seen in the field that inadvertently has bits set
724 -above bit 15. This feature is optional and is enabled if the BIOS requests
5119 +above bit 15. This feature is optional and is enabled if the BIOS
5120 +requests
725 5121 any Windows OSI strings. It can also be enabled by the host OS. Matthew
726 5122 Garrett, Bob Moore.
727 5123
728 5124 Added support to limit the maximum time for the ASL Sleep() operator. To
729 5125 prevent accidental deep sleeps, limit the maximum time that Sleep() will
730 5126 actually sleep. Configurable, the default maximum is two seconds. ACPICA
731 5127 bugzilla 854.
732 5128
733 -Added run-time validation support for the _WDG and_WED Microsoft predefined
734 -methods. These objects are defined by "Windows Instrumentation", and are not
5129 +Added run-time validation support for the _WDG and_WED Microsoft
5130 +predefined
5131 +methods. These objects are defined by "Windows Instrumentation", and are
5132 +not
735 5133 part of the ACPI spec. ACPICA BZ 860.
736 5134
737 5135 Expanded all statistic counters used during namespace and device
738 -initialization from 16 to 32 bits in order to support very large namespaces.
5136 +initialization from 16 to 32 bits in order to support very large
5137 +namespaces.
739 5138
740 -Replaced all instances of %d in printf format specifiers with %u since nearly
5139 +Replaced all instances of %d in printf format specifiers with %u since
5140 +nearly
741 5141 all integers in ACPICA are unsigned.
742 5142
743 -Fixed the exception namestring for AE_WAKE_ONLY_GPE. Was incorrectly returned
5143 +Fixed the exception namestring for AE_WAKE_ONLY_GPE. Was incorrectly
5144 +returned
744 5145 as AE_NO_HANDLER.
745 5146
746 5147 Example Code and Data Size: These are the sizes for the OS-independent
747 5148 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
748 -debug version of the code includes the debug output trace mechanism and has a
5149 +debug version of the code includes the debug output trace mechanism and
5150 +has a
749 5151 much larger code and data size.
750 5152
751 5153 Previous Release:
752 5154 Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total
753 5155 Debug Version: 164.2K Code, 51.5K Data, 215.7K Total
754 5156 Current Release:
755 5157 Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total
756 5158 Debug Version: 164.1K Code, 51.5K Data, 215.6K Total
757 5159
758 5160 2) iASL Compiler/Disassembler and Tools:
759 5161
760 5162 iASL: Added compiler support for the _WDG and_WED Microsoft predefined
761 -methods. These objects are defined by "Windows Instrumentation", and are not
5163 +methods. These objects are defined by "Windows Instrumentation", and are
5164 +not
762 5165 part of the ACPI spec. ACPICA BZ 860.
763 5166
764 5167 AcpiExec: added option to disable the memory tracking mechanism. The -dt
765 5168 option will disable the tracking mechanism, which improves performance
766 5169 considerably.
767 5170
768 5171 AcpiExec: Restructured the command line options into -d (disable) and -e
769 5172 (enable) options.
770 5173
771 5174 ----------------------------------------
772 5175 28 April 2010. Summary of changes for version 20100428:
773 5176
774 5177 1) ACPI CA Core Subsystem:
775 5178
776 5179 Implemented GPE support for dynamically loaded ACPI tables. For all GPEs,
777 -including FADT-based and GPE Block Devices, execute any _PRW methods in the
5180 +including FADT-based and GPE Block Devices, execute any _PRW methods in
5181 +the
778 5182 new table, and process any _Lxx/_Exx GPE methods in the new table. Any
779 5183 runtime GPE that is referenced by an _Lxx/_Exx method in the new table is
780 5184 immediately enabled. Handles the FADT-defined GPEs as well as GPE Block
781 5185 Devices. Provides compatibility with other ACPI implementations. Two new
782 -files added, evgpeinit.c and evgpeutil.c. ACPICA BZ 833. Lin Ming, Bob Moore.
5186 +files added, evgpeinit.c and evgpeutil.c. ACPICA BZ 833. Lin Ming, Bob
5187 +Moore.
783 5188
784 -Fixed a regression introduced in version 20100331 within the table manager
785 -where initial table loading could fail. This was introduced in the fix for
786 -AcpiReallocateRootTable. Also, renamed some of fields in the table manager
5189 +Fixed a regression introduced in version 20100331 within the table
5190 +manager
5191 +where initial table loading could fail. This was introduced in the fix
5192 +for
5193 +AcpiReallocateRootTable. Also, renamed some of fields in the table
5194 +manager
787 5195 data structures to clarify their meaning and use.
788 5196
789 5197 Fixed a possible allocation overrun during internal object copy in
790 -AcpiUtCopySimpleObject. The original code did not correctly handle the case
791 -where the object to be copied was a namespace node. Lin Ming. ACPICA BZ 847.
5198 +AcpiUtCopySimpleObject. The original code did not correctly handle the
5199 +case
5200 +where the object to be copied was a namespace node. Lin Ming. ACPICA BZ
5201 +847.
792 5202
793 5203 Updated the allocation dump routine, AcpiUtDumpAllocation and fixed a
794 -possible access beyond end-of-allocation. Also, now fully validate descriptor
5204 +possible access beyond end-of-allocation. Also, now fully validate
5205 +descriptor
795 5206 (size and type) before output. Lin Ming, Bob Moore. ACPICA BZ 847
796 5207
797 5208 Example Code and Data Size: These are the sizes for the OS-independent
798 5209 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
799 -debug version of the code includes the debug output trace mechanism and has a
5210 +debug version of the code includes the debug output trace mechanism and
5211 +has a
800 5212 much larger code and data size.
801 5213
802 5214 Previous Release:
803 5215 Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total
804 5216 Debug Version: 163.5K Code, 51.3K Data, 214.8K Total
805 5217 Current Release:
806 5218 Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total
807 5219 Debug Version: 164.2K Code, 51.5K Data, 215.7K Total
808 5220
809 5221 2) iASL Compiler/Disassembler and Tools:
810 5222
811 5223 iASL: Implemented Min/Max/Len/Gran validation for address resource
812 -descriptors. This change implements validation for the address fields that
5224 +descriptors. This change implements validation for the address fields
5225 +that
813 5226 are common to all address-type resource descriptors. These checks are
814 5227 implemented: Checks for valid Min/Max, length within the Min/Max window,
815 -valid granularity, Min/Max a multiple of granularity, and _MIF/_MAF as per
816 -table 6-40 in the ACPI 4.0a specification. Also split the large aslrestype1.c
5228 +valid granularity, Min/Max a multiple of granularity, and _MIF/_MAF as
5229 +per
5230 +table 6-40 in the ACPI 4.0a specification. Also split the large
5231 +aslrestype1.c
817 5232 and aslrestype2.c files into five new files. ACPICA BZ 840.
818 5233
819 -iASL: Added support for the _Wxx predefined names. This support was missing
5234 +iASL: Added support for the _Wxx predefined names. This support was
5235 +missing
820 5236 and these names were not recognized by the compiler as valid predefined
821 5237 names. ACPICA BZ 851.
822 5238
823 -iASL: Added an error for all predefined names that are defined to return no
824 -value and thus must be implemented as Control Methods. These include all of
5239 +iASL: Added an error for all predefined names that are defined to return
5240 +no
5241 +value and thus must be implemented as Control Methods. These include all
5242 +of
825 5243 the _Lxx, _Exx, _Wxx, and _Qxx names, as well as some other miscellaneous
826 5244 names such as _DIS, _INI, _IRC, _OFF, _ON, and _PSx. ACPICA BZ 850, 856.
827 5245
828 -iASL: Implemented the -ts option to emit hex AML data in ASL format, as an
829 -ASL Buffer. Allows ACPI tables to be easily included within ASL files, to be
830 -dynamically loaded via the Load() operator. Also cleaned up output for the -
5246 +iASL: Implemented the -ts option to emit hex AML data in ASL format, as
5247 +an
5248 +ASL Buffer. Allows ACPI tables to be easily included within ASL files, to
5249 +be
5250 +dynamically loaded via the Load() operator. Also cleaned up output for
5251 +the
5252 +-
831 5253 ta and -tc options. ACPICA BZ 853.
832 5254
833 5255 Tests: Added a new file with examples of extended iASL error checking.
834 5256 Demonstrates the advanced error checking ability of the iASL compiler.
835 5257 Available at tests/misc/badcode.asl.
836 5258
837 5259 ----------------------------------------
838 5260 31 March 2010. Summary of changes for version 20100331:
839 5261
840 5262 1) ACPI CA Core Subsystem:
841 5263
842 -Completed a major update for the GPE support in order to improve support for
843 -shared GPEs and to simplify both host OS and ACPICA code. Added a reference
844 -count mechanism to support shared GPEs that require multiple device drivers.
5264 +Completed a major update for the GPE support in order to improve support
5265 +for
5266 +shared GPEs and to simplify both host OS and ACPICA code. Added a
5267 +reference
5268 +count mechanism to support shared GPEs that require multiple device
5269 +drivers.
845 5270 Several external interfaces have changed. One external interface has been
846 5271 removed. One new external interface was added. Most of the GPE external
847 5272 interfaces now use the GPE spinlock instead of the events mutex (and the
848 -Flags parameter for many GPE interfaces has been removed.) See the updated
849 -ACPICA Programmer Reference for details. Matthew Garrett, Bob Moore, Rafael
5273 +Flags parameter for many GPE interfaces has been removed.) See the
5274 +updated
5275 +ACPICA Programmer Reference for details. Matthew Garrett, Bob Moore,
5276 +Rafael
850 5277 Wysocki. ACPICA BZ 831.
851 5278
852 5279 Changed:
853 5280 AcpiEnableGpe, AcpiDisableGpe, AcpiClearGpe, AcpiGetGpeStatus
854 5281 Removed:
855 5282 AcpiSetGpeType
856 5283 New:
857 5284 AcpiSetGpe
858 5285
859 -Implemented write support for DataTable operation regions. These regions are
860 -defined via the DataTableRegion() operator. Previously, only read support was
861 -implemented. The ACPI specification allows DataTableRegions to be read/write,
5286 +Implemented write support for DataTable operation regions. These regions
5287 +are
5288 +defined via the DataTableRegion() operator. Previously, only read support
5289 +was
5290 +implemented. The ACPI specification allows DataTableRegions to be
5291 +read/write,
862 5292 however.
863 5293
864 5294 Implemented a new subsystem option to force a copy of the DSDT to local
865 -memory. Optionally copy the entire DSDT to local memory (instead of simply
866 -mapping it.) There are some (albeit very rare) BIOSs that corrupt or replace
867 -the original DSDT, creating the need for this option. Default is FALSE, do
5295 +memory. Optionally copy the entire DSDT to local memory (instead of
5296 +simply
5297 +mapping it.) There are some (albeit very rare) BIOSs that corrupt or
5298 +replace
5299 +the original DSDT, creating the need for this option. Default is FALSE,
5300 +do
868 5301 not copy the DSDT.
869 5302
870 5303 Implemented detection of a corrupted or replaced DSDT. This change adds
871 -support to detect a DSDT that has been corrupted and/or replaced from outside
872 -the OS (by firmware). This is typically catastrophic for the system, but has
5304 +support to detect a DSDT that has been corrupted and/or replaced from
5305 +outside
5306 +the OS (by firmware). This is typically catastrophic for the system, but
5307 +has
873 5308 been seen on some machines. Once this problem has been detected, the DSDT
874 5309 copy option can be enabled via system configuration. Lin Ming, Bob Moore.
875 5310
876 -Fixed two problems with AcpiReallocateRootTable during the root table copy.
5311 +Fixed two problems with AcpiReallocateRootTable during the root table
5312 +copy.
877 5313 When copying the root table to the new allocation, the length used was
878 -incorrect. The new size was used instead of the current table size, meaning
879 -too much data was copied. Also, the count of available slots for ACPI tables
5314 +incorrect. The new size was used instead of the current table size,
5315 +meaning
5316 +too much data was copied. Also, the count of available slots for ACPI
5317 +tables
880 5318 was not set correctly. Alexey Starikovskiy, Bob Moore.
881 5319
882 5320 Example Code and Data Size: These are the sizes for the OS-independent
883 5321 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
884 -debug version of the code includes the debug output trace mechanism and has a
5322 +debug version of the code includes the debug output trace mechanism and
5323 +has a
885 5324 much larger code and data size.
886 5325
887 5326 Previous Release:
888 5327 Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total
889 5328 Debug Version: 163.4K Code, 51.1K Data, 214.5K Total
890 5329 Current Release:
891 5330 Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total
892 5331 Debug Version: 163.5K Code, 51.3K Data, 214.8K Total
893 5332
894 5333 2) iASL Compiler/Disassembler and Tools:
895 5334
896 5335 iASL: Implement limited typechecking for values returned from predefined
897 5336 control methods. The type of any returned static (unnamed) object is now
898 5337 validated. For example, Return(1). ACPICA BZ 786.
899 5338
900 -iASL: Fixed a predefined name object verification regression. Fixes a problem
5339 +iASL: Fixed a predefined name object verification regression. Fixes a
5340 +problem
901 5341 introduced in version 20100304. An error is incorrectly generated if a
902 5342 predefined name is declared as a static named object with a value defined
903 5343 using the keywords "Zero", "One", or "Ones". Lin Ming.
904 5344
905 -iASL: Added Windows 7 support for the -g option (get local ACPI tables) by
5345 +iASL: Added Windows 7 support for the -g option (get local ACPI tables)
5346 +by
906 5347 reducing the requested registry access rights. ACPICA BZ 842.
907 5348
908 -Disassembler: fixed a possible fault when generating External() statements.
909 -Introduced in commit ae7d6fd: Properly handle externals with parent-prefix
5349 +Disassembler: fixed a possible fault when generating External()
5350 +statements.
5351 +Introduced in commit ae7d6fd: Properly handle externals with parent-
5352 +prefix
910 5353 (carat). Fixes a string length allocation calculation. Lin Ming.
911 5354
912 5355 ----------------------------------------
913 5356 04 March 2010. Summary of changes for version 20100304:
914 5357
915 5358 1) ACPI CA Core Subsystem:
916 5359
917 5360 Fixed a possible problem with the AML Mutex handling function
918 5361 AcpiExReleaseMutex where the function could fault under the very rare
919 -condition when the interpreter has blocked, the interpreter lock is released,
5362 +condition when the interpreter has blocked, the interpreter lock is
5363 +released,
920 5364 the interpreter is then reentered via the same thread, and attempts to
921 -acquire an AML mutex that was previously acquired. FreeBSD report 140979. Lin
5365 +acquire an AML mutex that was previously acquired. FreeBSD report 140979.
5366 +Lin
922 5367 Ming.
923 5368
924 5369 Implemented additional configuration support for the AML "Debug Object".
925 5370 Output from the debug object can now be enabled via a global variable,
926 -AcpiGbl_EnableAmlDebugObject. This will assist with remote machine debugging.
927 -This debug output is now available in the release version of ACPICA instead
928 -of just the debug version. Also, the entire debug output module can now be
5371 +AcpiGbl_EnableAmlDebugObject. This will assist with remote machine
5372 +debugging.
5373 +This debug output is now available in the release version of ACPICA
5374 +instead
5375 +of just the debug version. Also, the entire debug output module can now
5376 +be
929 5377 configured out of the ACPICA build if desired. One new file added,
930 5378 executer/exdebug.c. Lin Ming, Bob Moore.
931 5379
932 5380 Added header support for the ACPI MCHI table (Management Controller Host
933 -Interface Table). This table was added in ACPI 4.0, but the defining document
5381 +Interface Table). This table was added in ACPI 4.0, but the defining
5382 +document
934 5383 has only recently become available.
935 5384
936 -Standardized output of integer values for ACPICA warnings/errors. Always use
937 -0x prefix for hex output, always use %u for unsigned integer decimal output.
938 -Affects ACPI_INFO, ACPI_ERROR, ACPI_EXCEPTION, and ACPI_WARNING (about 400
5385 +Standardized output of integer values for ACPICA warnings/errors. Always
5386 +use
5387 +0x prefix for hex output, always use %u for unsigned integer decimal
5388 +output.
5389 +Affects ACPI_INFO, ACPI_ERROR, ACPI_EXCEPTION, and ACPI_WARNING (about
5390 +400
939 5391 invocations.) These invocations were converted from the original
940 5392 ACPI_DEBUG_PRINT invocations and were not consistent. ACPICA BZ 835.
941 5393
942 5394 Example Code and Data Size: These are the sizes for the OS-independent
943 5395 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
944 -debug version of the code includes the debug output trace mechanism and has a
5396 +debug version of the code includes the debug output trace mechanism and
5397 +has a
945 5398 much larger code and data size.
946 5399
947 5400 Previous Release:
948 5401 Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total
949 5402 Debug Version: 163.5K Code, 50.9K Data, 214.4K Total
950 5403 Current Release:
951 5404 Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total
952 5405 Debug Version: 163.4K Code, 51.1K Data, 214.5K Total
953 5406
954 5407 2) iASL Compiler/Disassembler and Tools:
955 5408
956 5409 iASL: Implemented typechecking support for static (non-control method)
957 5410 predefined named objects that are declared with the Name() operator. For
958 5411 example, the type of this object is now validated to be of type Integer:
959 -Name(_BBN, 1). This change migrates the compiler to using the core predefined
5412 +Name(_BBN, 1). This change migrates the compiler to using the core
5413 +predefined
960 5414 name table instead of maintaining a local version. Added a new file,
961 5415 aslpredef.c. ACPICA BZ 832.
962 5416
963 5417 Disassembler: Added support for the ACPI 4.0 MCHI table.
964 5418
965 5419 ----------------------------------------
966 5420 21 January 2010. Summary of changes for version 20100121:
967 5421
968 5422 1) ACPI CA Core Subsystem:
969 5423
970 5424 Added the 2010 copyright to all module headers and signons. This affects
971 5425 virtually every file in the ACPICA core subsystem, the iASL compiler, the
972 5426 tools/utilities, and the test suites.
973 5427
974 -Implemented a change to the AcpiGetDevices interface to eliminate unnecessary
5428 +Implemented a change to the AcpiGetDevices interface to eliminate
5429 +unnecessary
975 5430 invocations of the _STA method. In the case where a specific _HID is
976 5431 requested, do not run _STA until a _HID match is found. This eliminates
977 -potentially dozens of _STA calls during a search for a particular device/HID,
5432 +potentially dozens of _STA calls during a search for a particular
5433 +device/HID,
978 5434 which in turn can improve boot times. ACPICA BZ 828. Lin Ming.
979 5435
980 -Implemented an additional repair for predefined method return values. Attempt
981 -to repair unexpected NULL elements within returned Package objects. Create an
982 -Integer of value zero, a NULL String, or a zero-length Buffer as appropriate.
5436 +Implemented an additional repair for predefined method return values.
5437 +Attempt
5438 +to repair unexpected NULL elements within returned Package objects.
5439 +Create
5440 +an
5441 +Integer of value zero, a NULL String, or a zero-length Buffer as
5442 +appropriate.
983 5443 ACPICA BZ 818. Lin Ming, Bob Moore.
984 5444
985 -Removed the obsolete ACPI_INTEGER data type. This type was introduced as the
986 -code was migrated from ACPI 1.0 (with 32-bit AML integers) to ACPI 2.0 (with
987 -64-bit AML integers). It is now obsolete and this change removes it from the
988 -ACPICA code base, replaced by UINT64. The original typedef has been retained
989 -for now for compatibility with existing device driver code. ACPICA BZ 824.
5445 +Removed the obsolete ACPI_INTEGER data type. This type was introduced as
5446 +the
5447 +code was migrated from ACPI 1.0 (with 32-bit AML integers) to ACPI 2.0
5448 +(with
5449 +64-bit AML integers). It is now obsolete and this change removes it from
5450 +the
5451 +ACPICA code base, replaced by UINT64. The original typedef has been
5452 +retained
5453 +for now for compatibility with existing device driver code. ACPICA BZ
5454 +824.
990 5455
991 -Removed the unused UINT32_STRUCT type, and the obsolete Integer64 field in
5456 +Removed the unused UINT32_STRUCT type, and the obsolete Integer64 field
5457 +in
992 5458 the parse tree object.
993 5459
994 -Added additional warning options for the gcc-4 generation. Updated the source
995 -accordingly. This includes some code restructuring to eliminate unreachable
996 -code, elimination of some gotos, elimination of unused return values, some
5460 +Added additional warning options for the gcc-4 generation. Updated the
5461 +source
5462 +accordingly. This includes some code restructuring to eliminate
5463 +unreachable
5464 +code, elimination of some gotos, elimination of unused return values,
5465 +some
997 5466 additional casting, and removal of redundant declarations.
998 5467
999 5468 Example Code and Data Size: These are the sizes for the OS-independent
1000 5469 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1001 -debug version of the code includes the debug output trace mechanism and has a
5470 +debug version of the code includes the debug output trace mechanism and
5471 +has a
1002 5472 much larger code and data size.
1003 5473
1004 5474 Previous Release:
1005 5475 Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total
1006 5476 Debug Version: 163.4K Code, 50.8K Data, 214.2K Total
1007 5477 Current Release:
1008 5478 Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total
1009 5479 Debug Version: 163.5K Code, 50.9K Data, 214.4K Total
1010 5480
1011 5481 2) iASL Compiler/Disassembler and Tools:
1012 5482
1013 5483 No functional changes for this release.
1014 5484
1015 5485 ----------------------------------------
1016 5486 14 December 2009. Summary of changes for version 20091214:
1017 5487
1018 5488 1) ACPI CA Core Subsystem:
1019 5489
1020 -Enhanced automatic data type conversions for predefined name repairs. This
1021 -change expands the automatic repairs/conversions for predefined name return
1022 -values to make Integers, Strings, and Buffers fully interchangeable. Also, a
1023 -Buffer can be converted to a Package of Integers if necessary. The nsrepair.c
5490 +Enhanced automatic data type conversions for predefined name repairs.
5491 +This
5492 +change expands the automatic repairs/conversions for predefined name
5493 +return
5494 +values to make Integers, Strings, and Buffers fully interchangeable.
5495 +Also,
5496 +a
5497 +Buffer can be converted to a Package of Integers if necessary. The
5498 +nsrepair.c
1024 5499 module was completely restructured. Lin Ming, Bob Moore.
1025 5500
1026 -Implemented automatic removal of null package elements during predefined name
5501 +Implemented automatic removal of null package elements during predefined
5502 +name
1027 5503 repairs. This change will automatically remove embedded and trailing NULL
1028 -package elements from returned package objects that are defined to contain a
1029 -variable number of sub-packages. The driver is then presented with a package
5504 +package elements from returned package objects that are defined to
5505 +contain
5506 +a
5507 +variable number of sub-packages. The driver is then presented with a
5508 +package
1030 5509 with no null elements to deal with. ACPICA BZ 819.
1031 5510
1032 5511 Implemented a repair for the predefined _FDE and _GTM names. The expected
1033 -return value for both names is a Buffer of 5 DWORDs. This repair fixes two
1034 -possible problems (both seen in the field), where a package of integers is
1035 -returned, or a buffer of BYTEs is returned. With assistance from Jung-uk Kim.
5512 +return value for both names is a Buffer of 5 DWORDs. This repair fixes
5513 +two
5514 +possible problems (both seen in the field), where a package of integers
5515 +is
5516 +returned, or a buffer of BYTEs is returned. With assistance from Jung-uk
5517 +Kim.
1036 5518
1037 -Implemented additional module-level code support. This change will properly
1038 -execute module-level code that is not at the root of the namespace (under a
1039 -Device object, etc.). Now executes the code within the current scope instead
5519 +Implemented additional module-level code support. This change will
5520 +properly
5521 +execute module-level code that is not at the root of the namespace (under
5522 +a
5523 +Device object, etc.). Now executes the code within the current scope
5524 +instead
1040 5525 of the root. ACPICA BZ 762. Lin Ming.
1041 5526
1042 -Fixed possible mutex acquisition errors when running _REG methods. Fixes a
1043 -problem where mutex errors can occur when running a _REG method that is in
1044 -the same scope as a method-defined operation region or an operation region
1045 -under a module-level IF block. This type of code is rare, so the problem has
5527 +Fixed possible mutex acquisition errors when running _REG methods. Fixes
5528 +a
5529 +problem where mutex errors can occur when running a _REG method that is
5530 +in
5531 +the same scope as a method-defined operation region or an operation
5532 +region
5533 +under a module-level IF block. This type of code is rare, so the problem
5534 +has
1046 5535 not been seen before. ACPICA BZ 826. Lin Ming, Bob Moore.
1047 5536
1048 -Fixed a possible memory leak during module-level code execution. An object
5537 +Fixed a possible memory leak during module-level code execution. An
5538 +object
1049 5539 could be leaked for each block of executed module-level code if the
1050 -interpreter slack mode is enabled This change deletes any implicitly returned
5540 +interpreter slack mode is enabled This change deletes any implicitly
5541 +returned
1051 5542 object from the module-level code block. Lin Ming.
1052 5543
1053 -Removed messages for successful predefined repair(s). The repair mechanism
1054 -was considered too wordy. Now, messages are only unconditionally emitted if
5544 +Removed messages for successful predefined repair(s). The repair
5545 +mechanism
5546 +was considered too wordy. Now, messages are only unconditionally emitted
5547 +if
1055 5548 the return object cannot be repaired. Existing messages for successful
1056 -repairs were converted to ACPI_DEBUG_PRINT messages for now. ACPICA BZ 827.
5549 +repairs were converted to ACPI_DEBUG_PRINT messages for now. ACPICA BZ
5550 +827.
1057 5551
1058 5552 Example Code and Data Size: These are the sizes for the OS-independent
1059 5553 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1060 -debug version of the code includes the debug output trace mechanism and has a
5554 +debug version of the code includes the debug output trace mechanism and
5555 +has a
1061 5556 much larger code and data size.
1062 5557
1063 5558 Previous Release:
1064 5559 Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total
1065 5560 Debug Version: 162.7K Code, 50.8K Data, 213.5K Total
1066 5561 Current Release:
1067 5562 Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total
1068 5563 Debug Version: 163.4K Code, 50.8K Data, 214.2K Total
1069 5564
1070 5565 2) iASL Compiler/Disassembler and Tools:
1071 5566
1072 -iASL: Fixed a regression introduced in 20091112 where intermediate .SRC files
5567 +iASL: Fixed a regression introduced in 20091112 where intermediate .SRC
5568 +files
1073 5569 were no longer automatically removed at the termination of the compile.
1074 5570
1075 5571 acpiexec: Implemented the -f option to specify default region fill value.
1076 5572 This option specifies the value used to initialize buffers that simulate
1077 -operation regions. Default value is zero. Useful for debugging problems that
5573 +operation regions. Default value is zero. Useful for debugging problems
5574 +that
1078 5575 depend on a specific initial value for a region or field.
1079 5576
1080 5577 ----------------------------------------
1081 5578 12 November 2009. Summary of changes for version 20091112:
1082 5579
1083 5580 1) ACPI CA Core Subsystem:
1084 5581
1085 5582 Implemented a post-order callback to AcpiWalkNamespace. The existing
1086 5583 interface only has a pre-order callback. This change adds an additional
1087 -parameter for a post-order callback which will be more useful for bus scans.
5584 +parameter for a post-order callback which will be more useful for bus
5585 +scans.
1088 5586 ACPICA BZ 779. Lin Ming. Updated the ACPICA Programmer Reference.
1089 5587
1090 5588 Modified the behavior of the operation region memory mapping cache for
1091 -SystemMemory. Ensure that the memory mappings created for operation regions
5589 +SystemMemory. Ensure that the memory mappings created for operation
5590 +regions
1092 5591 do not cross 4K page boundaries. Crossing a page boundary while mapping
1093 -regions can cause kernel warnings on some hosts if the pages have different
1094 -attributes. Such regions are probably BIOS bugs, and this is the workaround.
5592 +regions can cause kernel warnings on some hosts if the pages have
5593 +different
5594 +attributes. Such regions are probably BIOS bugs, and this is the
5595 +workaround.
1095 5596 Linux BZ 14445. Lin Ming.
1096 5597
1097 5598 Implemented an automatic repair for predefined methods that must return
1098 -sorted lists. This change will repair (by sorting) packages returned by _ALR,
1099 -_PSS, and _TSS. Drivers can now assume that the packages are correctly sorted
5599 +sorted lists. This change will repair (by sorting) packages returned by
5600 +_ALR,
5601 +_PSS, and _TSS. Drivers can now assume that the packages are correctly
5602 +sorted
1100 5603 and do not contain NULL package elements. Adds one new file,
1101 5604 namespace/nsrepair2.c. ACPICA BZ 784. Lin Ming, Bob Moore.
1102 5605
1103 -Fixed a possible fault during predefined name validation if a return Package
5606 +Fixed a possible fault during predefined name validation if a return
5607 +Package
1104 5608 object contains NULL elements. Also adds a warning if a NULL element is
1105 -followed by any non-null elements. ACPICA BZ 813, 814. Future enhancement may
5609 +followed by any non-null elements. ACPICA BZ 813, 814. Future enhancement
5610 +may
1106 5611 include repair or removal of all such NULL elements where possible.
1107 5612
1108 -Implemented additional module-level executable AML code support. This change
5613 +Implemented additional module-level executable AML code support. This
5614 +change
1109 5615 will execute module-level code that is not at the root of the namespace
1110 -(under a Device object, etc.) at table load time. Module-level executable AML
5616 +(under a Device object, etc.) at table load time. Module-level executable
5617 +AML
1111 5618 code has been illegal since ACPI 2.0. ACPICA BZ 762. Lin Ming.
1112 5619
1113 -Implemented a new internal function to create Integer objects. This function
5620 +Implemented a new internal function to create Integer objects. This
5621 +function
1114 5622 simplifies miscellaneous object creation code. ACPICA BZ 823.
1115 5623
1116 -Reduced the severity of predefined repair messages, Warning to Info. Since
1117 -the object was successfully repaired, a warning is too severe. Reduced to an
1118 -info message for now. These messages may eventually be changed to debug-only.
5624 +Reduced the severity of predefined repair messages, Warning to Info.
5625 +Since
5626 +the object was successfully repaired, a warning is too severe. Reduced to
5627 +an
5628 +info message for now. These messages may eventually be changed to debug-
5629 +only.
1119 5630 ACPICA BZ 812.
1120 5631
1121 5632 Example Code and Data Size: These are the sizes for the OS-independent
1122 5633 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1123 -debug version of the code includes the debug output trace mechanism and has a
5634 +debug version of the code includes the debug output trace mechanism and
5635 +has a
1124 5636 much larger code and data size.
1125 5637
1126 5638 Previous Release:
1127 5639 Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total
1128 5640 Debug Version: 161.8K Code, 50.6K Data, 212.4K Total
1129 5641 Current Release:
1130 5642 Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total
1131 5643 Debug Version: 162.7K Code, 50.8K Data, 213.5K Total
1132 5644
1133 5645 2) iASL Compiler/Disassembler and Tools:
1134 5646
1135 -iASL: Implemented Switch() with While(1) so that Break works correctly. This
1136 -change correctly implements the Switch operator with a surrounding While(1)
5647 +iASL: Implemented Switch() with While(1) so that Break works correctly.
5648 +This
5649 +change correctly implements the Switch operator with a surrounding
5650 +While(1)
1137 5651 so that the Break operator works as expected. ACPICA BZ 461. Lin Ming.
1138 5652
1139 -iASL: Added a message if a package initializer list is shorter than package
1140 -length. Adds a new remark for a Package() declaration if an initializer list
5653 +iASL: Added a message if a package initializer list is shorter than
5654 +package
5655 +length. Adds a new remark for a Package() declaration if an initializer
5656 +list
1141 5657 exists, but is shorter than the declared length of the package. Although
1142 5658 technically legal, this is probably a coding error and it is seen in the
1143 5659 field. ACPICA BZ 815. Lin Ming, Bob Moore.
1144 5660
1145 -iASL: Fixed a problem where the compiler could fault after the maximum number
5661 +iASL: Fixed a problem where the compiler could fault after the maximum
5662 +number
1146 5663 of errors was reached (200).
1147 5664
1148 -acpixtract: Fixed a possible warning for pointer cast if the compiler warning
5665 +acpixtract: Fixed a possible warning for pointer cast if the compiler
5666 +warning
1149 5667 level set very high.
1150 5668
1151 5669 ----------------------------------------
1152 5670 13 October 2009. Summary of changes for version 20091013:
1153 5671
1154 5672 1) ACPI CA Core Subsystem:
1155 5673
1156 -Fixed a problem where an Operation Region _REG method could be executed more
1157 -than once. If a custom address space handler is installed by the host before
1158 -the "initialize operation regions" phase of the ACPICA initialization, any
5674 +Fixed a problem where an Operation Region _REG method could be executed
5675 +more
5676 +than once. If a custom address space handler is installed by the host
5677 +before
5678 +the "initialize operation regions" phase of the ACPICA initialization,
5679 +any
1159 5680 _REG methods for that address space could be executed twice. This change
1160 5681 fixes the problem. ACPICA BZ 427. Lin Ming.
1161 5682
1162 5683 Fixed a possible memory leak for the Scope() ASL operator. When the exact
1163 5684 invocation of "Scope(\)" is executed (change scope to root), one internal
1164 5685 operand object was leaked. Lin Ming.
1165 5686
1166 5687 Implemented a run-time repair for the _MAT predefined method. If the _MAT
1167 5688 return value is defined as a Field object in the AML, and the field
1168 -size is less than or equal to the default width of an integer (32 or 64),_MAT
5689 +size is less than or equal to the default width of an integer (32 or
5690 +64),_MAT
1169 5691 can incorrectly return an Integer instead of a Buffer. ACPICA now
1170 5692 automatically repairs this problem. ACPICA BZ 810.
1171 5693
1172 -Implemented a run-time repair for the _BIF and _BIX predefined methods. The
5694 +Implemented a run-time repair for the _BIF and _BIX predefined methods.
5695 +The
1173 5696 "OEM Information" field is often incorrectly returned as an Integer with
1174 -value zero if the field is not supported by the platform. This is due to an
5697 +value zero if the field is not supported by the platform. This is due to
5698 +an
1175 5699 ambiguity in the ACPI specification. The field should always be a string.
1176 5700 ACPICA now automatically repairs this problem by returning a NULL string
1177 5701 within the returned Package. ACPICA BZ 807.
1178 5702
1179 5703 Example Code and Data Size: These are the sizes for the OS-independent
1180 5704 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1181 -debug version of the code includes the debug output trace mechanism and has a
5705 +debug version of the code includes the debug output trace mechanism and
5706 +has a
1182 5707 much larger code and data size.
1183 5708
1184 5709 Previous Release:
1185 5710 Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total
1186 5711 Debug Version: 161.7K Code, 50.9K Data, 212.6K Total
1187 5712 Current Release:
1188 5713 Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total
1189 5714 Debug Version: 161.8K Code, 50.6K Data, 212.4K Total
1190 5715
1191 5716 2) iASL Compiler/Disassembler and Tools:
1192 5717
1193 5718 Disassembler: Fixed a problem where references to external symbols that
1194 -contained one or more parent-prefixes (carats) were not handled correctly,
5719 +contained one or more parent-prefixes (carats) were not handled
5720 +correctly,
1195 5721 possibly causing a fault. ACPICA BZ 806. Lin Ming.
1196 5722
1197 5723 Disassembler: Restructured the code so that all functions that handle
1198 5724 external symbols are in a single module. One new file is added,
1199 5725 common/dmextern.c.
1200 5726
1201 5727 AML Debugger: Added a max count argument for the Batch command (which
1202 5728 executes multiple predefined methods within the namespace.)
1203 5729
1204 5730 iASL: Updated the compiler documentation (User Reference.) Available at
1205 5731 http://www.acpica.org/documentation/. ACPICA BZ 750.
1206 5732
|
↓ open down ↓ |
2 lines elided |
↑ open up ↑ |
1207 5733 AcpiXtract: Updated for Lint and other formatting changes. Close all open
1208 5734 files.
1209 5735
1210 5736 ----------------------------------------
1211 5737 03 September 2009. Summary of changes for version 20090903:
1212 5738
1213 5739 1) ACPI CA Core Subsystem:
1214 5740
1215 5741 For Windows Vista compatibility, added the automatic execution of an _INI
1216 5742 method located at the namespace root (\_INI). This method is executed at
1217 -table load time. This support is in addition to the automatic execution of
5743 +table load time. This support is in addition to the automatic execution
5744 +of
1218 5745 \_SB._INI. Lin Ming.
1219 5746
1220 -Fixed a possible memory leak in the interpreter for AML package objects if
1221 -the package initializer list is longer than the defined size of the package.
1222 -This apparently can only happen if the BIOS changes the package size on the
5747 +Fixed a possible memory leak in the interpreter for AML package objects
5748 +if
5749 +the package initializer list is longer than the defined size of the
5750 +package.
5751 +This apparently can only happen if the BIOS changes the package size on
5752 +the
1223 5753 fly (seen in a _PSS object), as ASL compilers do not allow this. The
1224 -interpreter will truncate the package to the defined size (and issue an error
1225 -message), but previously could leave the extra objects undeleted if they were
1226 -pre-created during the argument processing (such is the case if the package
5754 +interpreter will truncate the package to the defined size (and issue an
5755 +error
5756 +message), but previously could leave the extra objects undeleted if they
5757 +were
5758 +pre-created during the argument processing (such is the case if the
5759 +package
1227 5760 consists of a number of sub-packages as in the _PSS.) ACPICA BZ 805.
1228 5761
1229 5762 Fixed a problem seen when a Buffer or String is stored to itself via ASL.
1230 -This has been reported in the field. Previously, ACPICA would zero out the
5763 +This has been reported in the field. Previously, ACPICA would zero out
5764 +the
1231 5765 buffer/string. Now, the operation is treated as a noop. Provides Windows
1232 5766 compatibility. ACPICA BZ 803. Lin Ming.
1233 5767
1234 5768 Removed an extraneous error message for ASL constructs of the form
1235 -Store(LocalX,LocalX) when LocalX is uninitialized. These curious statements
1236 -are seen in many BIOSs and are once again treated as NOOPs and no error is
5769 +Store(LocalX,LocalX) when LocalX is uninitialized. These curious
5770 +statements
5771 +are seen in many BIOSs and are once again treated as NOOPs and no error
5772 +is
1237 5773 emitted when they are encountered. ACPICA BZ 785.
1238 5774
1239 5775 Fixed an extraneous warning message if a _DSM reserved method returns a
1240 5776 Package object. _DSM can return any type of object, so validation on the
1241 5777 return type cannot be performed. ACPICA BZ 802.
1242 5778
1243 5779 Example Code and Data Size: These are the sizes for the OS-independent
1244 5780 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1245 -debug version of the code includes the debug output trace mechanism and has a
5781 +debug version of the code includes the debug output trace mechanism and
5782 +has a
1246 5783 much larger code and data size.
1247 5784
1248 5785 Previous Release:
1249 5786 Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total
1250 5787 Debug Version: 161.6K Code, 50.9K Data, 212.5K Total
1251 5788 Current Release:
1252 5789 Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total
1253 5790 Debug Version: 161.7K Code, 50.9K Data, 212.6K Total
1254 5791
1255 5792 2) iASL Compiler/Disassembler and Tools:
1256 5793
1257 5794 iASL: Fixed a problem with the use of the Alias operator and Resource
1258 5795 Templates. The correct alias is now constructed and no error is emitted.
1259 5796 ACPICA BZ 738.
1260 5797
1261 -iASL: Implemented the -I option to specify additional search directories for
5798 +iASL: Implemented the -I option to specify additional search directories
5799 +for
1262 5800 include files. Allows multiple additional search paths for include files.
1263 -Directories are searched in the order specified on the command line (after
5801 +Directories are searched in the order specified on the command line
5802 +(after
1264 5803 the local directory is searched.) ACPICA BZ 800.
1265 5804
1266 5805 iASL: Fixed a problem where the full pathname for include files was not
1267 5806 emitted for warnings/errors. This caused the IDE support to not work
1268 5807 properly. ACPICA BZ 765.
1269 5808
1270 5809 iASL: Implemented the -@ option to specify a Windows-style response file
1271 5810 containing additional command line options. ACPICA BZ 801.
1272 5811
1273 -AcpiExec: Added support to load multiple AML files simultaneously (such as a
5812 +AcpiExec: Added support to load multiple AML files simultaneously (such
5813 +as
5814 +a
1274 5815 DSDT and multiple SSDTs). Also added support for wildcards within the AML
1275 5816 pathname. These features allow all machine tables to be easily loaded and
1276 5817 debugged together. ACPICA BZ 804.
1277 5818
1278 -Disassembler: Added missing support for disassembly of HEST table Error Bank
5819 +Disassembler: Added missing support for disassembly of HEST table Error
5820 +Bank
1279 5821 subtables.
1280 5822
1281 5823 ----------------------------------------
1282 5824 30 July 2009. Summary of changes for version 20090730:
1283 5825
1284 5826 The ACPI 4.0 implementation for ACPICA is complete with this release.
1285 5827
1286 5828 1) ACPI CA Core Subsystem:
1287 5829
1288 5830 ACPI 4.0: Added header file support for all new and changed ACPI tables.
1289 -Completely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are new
1290 -for ACPI 4.0, but have previously been supported in ACPICA are: CPEP, BERT,
1291 -EINJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT. There
5831 +Completely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are
5832 +new
5833 +for ACPI 4.0, but have previously been supported in ACPICA are: CPEP,
5834 +BERT,
5835 +EINJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT.
5836 +There
1292 5837 have been some ACPI 4.0 changes to other existing tables. Split the large
1293 5838 actbl1.h header into the existing actbl2.h header. ACPICA BZ 774.
1294 5839
1295 -ACPI 4.0: Implemented predefined name validation for all new names. There are
1296 -31 new names in ACPI 4.0. The predefined validation module was split into two
5840 +ACPI 4.0: Implemented predefined name validation for all new names. There
5841 +are
5842 +31 new names in ACPI 4.0. The predefined validation module was split into
5843 +two
1297 5844 files. The new file is namespace/nsrepair.c. ACPICA BZ 770.
1298 5845
1299 5846 Implemented support for so-called "module-level executable code". This is
1300 -executable AML code that exists outside of any control method and is intended
1301 -to be executed at table load time. Although illegal since ACPI 2.0, this type
1302 -of code still exists and is apparently still being created. Blocks of this
1303 -code are now detected and executed as intended. Currently, the code blocks
5847 +executable AML code that exists outside of any control method and is
5848 +intended
5849 +to be executed at table load time. Although illegal since ACPI 2.0, this
5850 +type
5851 +of code still exists and is apparently still being created. Blocks of
5852 +this
5853 +code are now detected and executed as intended. Currently, the code
5854 +blocks
1304 5855 must exist under either an If, Else, or While construct; these are the
1305 5856 typical cases seen in the field. ACPICA BZ 762. Lin Ming.
1306 5857
1307 5858 Implemented an automatic dynamic repair for predefined names that return
1308 -nested Package objects. This applies to predefined names that are defined to
5859 +nested Package objects. This applies to predefined names that are defined
5860 +to
1309 5861 return a variable-length Package of sub-packages. If the number of sub-
1310 -packages is one, BIOS code is occasionally seen that creates a simple single
5862 +packages is one, BIOS code is occasionally seen that creates a simple
5863 +single
1311 5864 package with no sub-packages. This code attempts to fix the problem by
1312 -wrapping a new package object around the existing package. These methods can
1313 -be repaired: _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, and _TSS. ACPICA BZ
5865 +wrapping a new package object around the existing package. These methods
5866 +can
5867 +be repaired: _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, and _TSS. ACPICA
5868 +BZ
1314 5869 790.
1315 5870
1316 -Fixed a regression introduced in 20090625 for the AcpiGetDevices interface.
1317 -The _HID/_CID matching was broken and no longer matched IDs correctly. ACPICA
5871 +Fixed a regression introduced in 20090625 for the AcpiGetDevices
5872 +interface.
5873 +The _HID/_CID matching was broken and no longer matched IDs correctly.
5874 +ACPICA
1318 5875 BZ 793.
1319 5876
1320 5877 Fixed a problem with AcpiReset where the reset would silently fail if the
1321 -register was one of the protected I/O ports. AcpiReset now bypasses the port
1322 -validation mechanism. This may eventually be driven into the AcpiRead/Write
5878 +register was one of the protected I/O ports. AcpiReset now bypasses the
5879 +port
5880 +validation mechanism. This may eventually be driven into the
5881 +AcpiRead/Write
1323 5882 interfaces.
1324 5883
1325 5884 Fixed a regression related to the recent update of the AcpiRead/Write
1326 -interfaces. A sleep/suspend could fail if the optional PM2 Control register
5885 +interfaces. A sleep/suspend could fail if the optional PM2 Control
5886 +register
1327 5887 does not exist during an attempt to write the Bus Master Arbitration bit.
1328 -(However, some hosts already delete the code that writes this bit, and the
5888 +(However, some hosts already delete the code that writes this bit, and
5889 +the
1329 5890 code may in fact be obsolete at this date.) ACPICA BZ 799.
1330 5891
1331 -Fixed a problem where AcpiTerminate could fault if inadvertently called twice
5892 +Fixed a problem where AcpiTerminate could fault if inadvertently called
5893 +twice
1332 5894 in succession. ACPICA BZ 795.
1333 5895
1334 5896 Example Code and Data Size: These are the sizes for the OS-independent
1335 5897 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1336 -debug version of the code includes the debug output trace mechanism and has a
5898 +debug version of the code includes the debug output trace mechanism and
5899 +has a
1337 5900 much larger code and data size.
1338 5901
1339 5902 Previous Release:
1340 5903 Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total
1341 5904 Debug Version: 160.5K Code, 50.6K Data, 211.1K Total
1342 5905 Current Release:
1343 5906 Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total
1344 5907 Debug Version: 161.6K Code, 50.9K Data, 212.5K Total
1345 5908
1346 5909 2) iASL Compiler/Disassembler and Tools:
1347 5910
1348 5911 ACPI 4.0: Implemented disassembler support for all new ACPI tables and
1349 5912 changes to existing tables. ACPICA BZ 775.
1350 5913
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1351 5914 ----------------------------------------
1352 5915 25 June 2009. Summary of changes for version 20090625:
1353 5916
1354 5917 The ACPI 4.0 Specification was released on June 16 and is available at
1355 5918 www.acpi.info. ACPICA implementation of ACPI 4.0 is underway and will
1356 5919 continue for the next few releases.
1357 5920
1358 5921 1) ACPI CA Core Subsystem:
1359 5922
1360 5923 ACPI 4.0: Implemented interpreter support for the IPMI operation region
1361 -address space. Includes support for bi-directional data buffers and an IPMI
1362 -address space handler (to be installed by an IPMI device driver.) ACPICA BZ
5924 +address space. Includes support for bi-directional data buffers and an
5925 +IPMI
5926 +address space handler (to be installed by an IPMI device driver.) ACPICA
5927 +BZ
1363 5928 773. Lin Ming.
1364 5929
1365 -ACPI 4.0: Added changes for existing ACPI tables - FACS and SRAT. Includes
5930 +ACPI 4.0: Added changes for existing ACPI tables - FACS and SRAT.
5931 +Includes
1366 5932 support in both the header files and the disassembler.
1367 5933
1368 5934 Completed a major update for the AcpiGetObjectInfo external interface.
1369 5935 Changes include:
1370 5936 - Support for variable, unlimited length HID, UID, and CID strings.
1371 - - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.)
5937 + - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA,
5938 +etc.)
1372 5939 - Call the _SxW power methods on behalf of a device object.
1373 5940 - Determine if a device is a PCI root bridge.
1374 5941 - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO.
1375 -These changes will require an update to all callers of this interface. See
1376 -the updated ACPICA Programmer Reference for details. One new source file has
5942 +These changes will require an update to all callers of this interface.
5943 +See
5944 +the updated ACPICA Programmer Reference for details. One new source file
5945 +has
1377 5946 been added - utilities/utids.c. ACPICA BZ 368, 780.
1378 5947
1379 5948 Updated the AcpiRead and AcpiWrite external interfaces to support 64-bit
1380 -transfers. The Value parameter has been extended from 32 bits to 64 bits in
1381 -order to support new ACPI 4.0 tables. These changes will require an update to
5949 +transfers. The Value parameter has been extended from 32 bits to 64 bits
5950 +in
5951 +order to support new ACPI 4.0 tables. These changes will require an
5952 +update
5953 +to
1382 5954 all callers of these interfaces. See the ACPICA Programmer Reference for
1383 5955 details. ACPICA BZ 768.
1384 5956
1385 -Fixed several problems with AcpiAttachData. The handler was not invoked when
1386 -the host node was deleted. The data sub-object was not automatically deleted
1387 -when the host node was deleted. The interface to the handler had an unused
5957 +Fixed several problems with AcpiAttachData. The handler was not invoked
5958 +when
5959 +the host node was deleted. The data sub-object was not automatically
5960 +deleted
5961 +when the host node was deleted. The interface to the handler had an
5962 +unused
1388 5963 parameter, this was removed. ACPICA BZ 778.
1389 5964
1390 5965 Enhanced the function that dumps ACPI table headers. All non-printable
1391 -characters in the string fields are now replaced with '?' (Signature, OemId,
5966 +characters in the string fields are now replaced with '?' (Signature,
5967 +OemId,
1392 5968 OemTableId, and CompilerId.) ACPI tables with non-printable characters in
1393 5969 these fields are occasionally seen in the field. ACPICA BZ 788.
1394 5970
1395 5971 Fixed a problem with predefined method repair code where the code that
1396 -attempts to repair/convert an object of incorrect type is only executed on
1397 -the first time the predefined method is called. The mechanism that disables
5972 +attempts to repair/convert an object of incorrect type is only executed
5973 +on
5974 +the first time the predefined method is called. The mechanism that
5975 +disables
1398 5976 warnings on subsequent calls was interfering with the repair mechanism.
1399 5977 ACPICA BZ 781.
1400 5978
1401 -Fixed a possible memory leak in the predefined validation/repair code when a
5979 +Fixed a possible memory leak in the predefined validation/repair code
5980 +when
5981 +a
1402 5982 buffer is automatically converted to an expected string object.
1403 5983
1404 -Removed obsolete 16-bit files from the distribution and from the current git
5984 +Removed obsolete 16-bit files from the distribution and from the current
5985 +git
1405 5986 tree head. ACPICA BZ 776.
1406 5987
1407 5988 Example Code and Data Size: These are the sizes for the OS-independent
1408 5989 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1409 -debug version of the code includes the debug output trace mechanism and has a
5990 +debug version of the code includes the debug output trace mechanism and
5991 +has a
1410 5992 much larger code and data size.
1411 5993
1412 5994 Previous Release:
1413 5995 Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total
1414 5996 Debug Version: 158.9K Code, 50.0K Data, 208.9K Total
1415 5997 Current Release:
1416 5998 Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total
1417 5999 Debug Version: 160.5K Code, 50.6K Data, 211.1K Total
1418 6000
1419 6001 2) iASL Compiler/Disassembler and Tools:
1420 6002
1421 6003 ACPI 4.0: iASL and Disassembler - implemented support for the new IPMI
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1422 6004 operation region keyword. ACPICA BZ 771, 772. Lin Ming.
1423 6005
1424 6006 ACPI 4.0: iASL - implemented compile-time validation support for all new
1425 6007 predefined names and control methods (31 total). ACPICA BZ 769.
1426 6008
1427 6009 ----------------------------------------
1428 6010 21 May 2009. Summary of changes for version 20090521:
1429 6011
1430 6012 1) ACPI CA Core Subsystem:
1431 6013
1432 -Disabled the preservation of the SCI enable bit in the PM1 control register.
1433 -The SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification to be
6014 +Disabled the preservation of the SCI enable bit in the PM1 control
6015 +register.
6016 +The SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification
6017 +to
6018 +be
1434 6019 a "preserved" bit - "OSPM always preserves this bit position", section
1435 6020 4.7.3.2.1. However, some machines fail if this bit is in fact preserved
1436 6021 because the bit needs to be explicitly set by the OS as a workaround. No
1437 6022 machines fail if the bit is not preserved. Therefore, ACPICA no longer
1438 6023 attempts to preserve this bit.
1439 6024
1440 6025 Fixed a problem in AcpiRsGetPciRoutingTableLength where an invalid or
1441 6026 incorrectly formed _PRT package could cause a fault. Added validation to
1442 6027 ensure that each package element is actually a sub-package.
1443 6028
1444 -Implemented a new interface to install or override a single control method,
1445 -AcpiInstallMethod. This interface is useful when debugging in order to repair
1446 -an existing method or to install a missing method without having to override
6029 +Implemented a new interface to install or override a single control
6030 +method,
6031 +AcpiInstallMethod. This interface is useful when debugging in order to
6032 +repair
6033 +an existing method or to install a missing method without having to
6034 +override
1447 6035 the entire ACPI table. See the ACPICA Programmer Reference for use and
1448 6036 examples. Lin Ming, Bob Moore.
1449 6037
1450 6038 Fixed several reference count issues with the DdbHandle object that is
1451 -created from a Load or LoadTable operator. Prevent premature deletion of the
1452 -object. Also, mark the object as invalid once the table has been unloaded.
1453 -This is needed because the handle itself may not be deleted after the table
6039 +created from a Load or LoadTable operator. Prevent premature deletion of
6040 +the
6041 +object. Also, mark the object as invalid once the table has been
6042 +unloaded.
6043 +This is needed because the handle itself may not be deleted after the
6044 +table
1454 6045 unload, depending on whether it has been stored in a named object by the
1455 6046 caller. Lin Ming.
1456 6047
1457 6048 Fixed a problem with Mutex Sync Levels. Fixed a problem where if multiple
1458 -mutexes of the same sync level are acquired but then not released in strict
1459 -opposite order, the internally maintained Current Sync Level becomes confused
6049 +mutexes of the same sync level are acquired but then not released in
6050 +strict
6051 +opposite order, the internally maintained Current Sync Level becomes
6052 +confused
1460 6053 and can cause subsequent execution errors. ACPICA BZ 471.
1461 6054
1462 6055 Changed the allowable release order for ASL mutex objects. The ACPI 4.0
1463 -specification has been changed to make the SyncLevel for mutex objects more
1464 -useful. When releasing a mutex, the SyncLevel of the mutex must now be the
1465 -same as the current sync level. This makes more sense than the previous rule
6056 +specification has been changed to make the SyncLevel for mutex objects
6057 +more
6058 +useful. When releasing a mutex, the SyncLevel of the mutex must now be
6059 +the
6060 +same as the current sync level. This makes more sense than the previous
6061 +rule
1466 6062 (SyncLevel less than or equal). This change updates the code to match the
1467 6063 specification.
1468 6064
1469 -Fixed a problem with the local version of the AcpiOsPurgeCache function. The
6065 +Fixed a problem with the local version of the AcpiOsPurgeCache function.
6066 +The
1470 6067 (local) cache must be locked during all cache object deletions. Andrew
1471 6068 Baumann.
1472 6069
1473 -Updated the Load operator to use operation region interfaces. This replaces
1474 -direct memory mapping with region access calls. Now, all region accesses go
6070 +Updated the Load operator to use operation region interfaces. This
6071 +replaces
6072 +direct memory mapping with region access calls. Now, all region accesses
6073 +go
1475 6074 through the installed region handler as they should.
1476 6075
1477 -Simplified and optimized the NsGetNextNode function. Reduced parameter count
6076 +Simplified and optimized the NsGetNextNode function. Reduced parameter
6077 +count
1478 6078 and reduced code for this frequently used function.
1479 6079
1480 6080 Example Code and Data Size: These are the sizes for the OS-independent
1481 6081 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1482 -debug version of the code includes the debug output trace mechanism and has a
6082 +debug version of the code includes the debug output trace mechanism and
6083 +has a
1483 6084 much larger code and data size.
1484 6085
1485 6086 Previous Release:
1486 6087 Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total
1487 6088 Debug Version: 158.0K Code, 49.9K Data, 207.9K Total
1488 6089 Current Release:
1489 6090 Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total
1490 6091 Debug Version: 158.9K Code, 50.0K Data, 208.9K Total
1491 6092
1492 6093 2) iASL Compiler/Disassembler and Tools:
1493 6094
1494 -Disassembler: Fixed some issues with DMAR, HEST, MADT tables. Some problems
1495 -with sub-table disassembly and handling invalid sub-tables. Attempt recovery
6095 +Disassembler: Fixed some issues with DMAR, HEST, MADT tables. Some
6096 +problems
6097 +with sub-table disassembly and handling invalid sub-tables. Attempt
6098 +recovery
1496 6099 after an invalid sub-table ID.
1497 6100
1498 6101 ----------------------------------------
1499 6102 22 April 2009. Summary of changes for version 20090422:
1500 6103
1501 6104 1) ACPI CA Core Subsystem:
1502 6105
1503 -Fixed a compatibility issue with the recently released I/O port protection
6106 +Fixed a compatibility issue with the recently released I/O port
6107 +protection
1504 6108 mechanism. For windows compatibility, 1) On a port protection violation,
1505 -simply ignore the request and do not return an exception (allow the control
6109 +simply ignore the request and do not return an exception (allow the
6110 +control
1506 6111 method to continue execution.) 2) If only part of the request overlaps a
1507 -protected port, read/write the individual ports that are not protected. Linux
6112 +protected port, read/write the individual ports that are not protected.
6113 +Linux
1508 6114 BZ 13036. Lin Ming
1509 6115
1510 -Enhanced the execution of the ASL/AML BreakPoint operator so that it actually
6116 +Enhanced the execution of the ASL/AML BreakPoint operator so that it
6117 +actually
1511 6118 breaks into the AML debugger if the debugger is present. This matches the
1512 6119 ACPI-defined behavior.
1513 6120
1514 6121 Fixed several possible warnings related to the use of the configurable
1515 6122 ACPI_THREAD_ID. This type can now be configured as either an integer or a
1516 6123 pointer with no warnings. Also fixes several warnings in printf-like
1517 6124 statements for the 64-bit build when the type is configured as a pointer.
1518 6125 ACPICA BZ 766, 767.
1519 6126
1520 -Fixed a number of possible warnings when compiling with gcc 4+ (depending on
1521 -warning options.) Examples include printf formats, aliasing, unused globals,
6127 +Fixed a number of possible warnings when compiling with gcc 4+ (depending
6128 +on
6129 +warning options.) Examples include printf formats, aliasing, unused
6130 +globals,
1522 6131 missing prototypes, missing switch default statements, use of non-ANSI
1523 -library functions, use of non-ANSI constructs. See generate/unix/Makefile for
6132 +library functions, use of non-ANSI constructs. See generate/unix/Makefile
6133 +for
1524 6134 a list of warning options used with gcc 3 and 4. ACPICA BZ 735.
1525 6135
1526 6136 Example Code and Data Size: These are the sizes for the OS-independent
1527 6137 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1528 -debug version of the code includes the debug output trace mechanism and has a
6138 +debug version of the code includes the debug output trace mechanism and
6139 +has a
1529 6140 much larger code and data size.
1530 6141
1531 6142 Previous Release:
1532 6143 Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total
1533 6144 Debug Version: 157.7K Code, 49.9K Data, 207.6K Total
1534 6145 Current Release:
1535 6146 Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total
1536 6147 Debug Version: 158.0K Code, 49.9K Data, 207.9K Total
1537 6148
1538 6149 2) iASL Compiler/Disassembler and Tools:
1539 6150
1540 -iASL: Fixed a generation warning from Bison 2.3 and fixed several warnings on
6151 +iASL: Fixed a generation warning from Bison 2.3 and fixed several
6152 +warnings
6153 +on
1541 6154 the 64-bit build.
1542 6155
1543 -iASL: Fixed a problem where the Unix/Linux versions of the compiler could not
6156 +iASL: Fixed a problem where the Unix/Linux versions of the compiler could
6157 +not
1544 6158 correctly digest Windows/DOS formatted files (with CR/LF).
1545 6159
1546 6160 iASL: Added a new option for "quiet mode" (-va) that produces only the
1547 6161 compilation summary, not individual errors and warnings. Useful for large
1548 6162 batch compilations.
1549 6163
1550 -AcpiExec: Implemented a new option (-z) to enable a forced semaphore/mutex
1551 -timeout that can be used to detect hang conditions during execution of AML
1552 -code (includes both internal semaphores and AML-defined mutexes and events.)
6164 +AcpiExec: Implemented a new option (-z) to enable a forced
6165 +semaphore/mutex
6166 +timeout that can be used to detect hang conditions during execution of
6167 +AML
6168 +code (includes both internal semaphores and AML-defined mutexes and
6169 +events.)
1553 6170
1554 6171 Added new makefiles for the generation of acpica in a generic unix-like
1555 -environment. These makefiles are intended to generate the acpica tools and
6172 +environment. These makefiles are intended to generate the acpica tools
6173 +and
1556 6174 utilities from the original acpica git source tree structure.
1557 6175
1558 6176 Test Suites: Updated and cleaned up the documentation files. Updated the
1559 -copyrights to 2009, affecting all source files. Use the new version of iASL
1560 -with quiet mode. Increased the number of available semaphores in the Windows
1561 -OSL, allowing the aslts to execute fully on Windows. For the Unix OSL, added
6177 +copyrights to 2009, affecting all source files. Use the new version of
6178 +iASL
6179 +with quiet mode. Increased the number of available semaphores in the
6180 +Windows
6181 +OSL, allowing the aslts to execute fully on Windows. For the Unix OSL,
6182 +added
1562 6183 an alternate implementation of the semaphore timeout to allow aslts to
1563 6184 execute fully on Cygwin.
1564 6185
1565 6186 ----------------------------------------
1566 6187 20 March 2009. Summary of changes for version 20090320:
1567 6188
1568 6189 1) ACPI CA Core Subsystem:
1569 6190
1570 -Fixed a possible race condition between AcpiWalkNamespace and dynamic table
1571 -unloads. Added a reader/writer locking mechanism to allow multiple concurrent
1572 -namespace walks (readers), but block a dynamic table unload until it can gain
1573 -exclusive write access to the namespace. This fixes a problem where a table
1574 -unload could (possibly catastrophically) delete the portion of the namespace
1575 -that is currently being examined by a walk. Adds a new file, utlock.c, that
6191 +Fixed a possible race condition between AcpiWalkNamespace and dynamic
6192 +table
6193 +unloads. Added a reader/writer locking mechanism to allow multiple
6194 +concurrent
6195 +namespace walks (readers), but block a dynamic table unload until it can
6196 +gain
6197 +exclusive write access to the namespace. This fixes a problem where a
6198 +table
6199 +unload could (possibly catastrophically) delete the portion of the
6200 +namespace
6201 +that is currently being examined by a walk. Adds a new file, utlock.c,
6202 +that
1576 6203 implements the reader/writer lock mechanism. ACPICA BZ 749.
1577 6204
1578 -Fixed a regression introduced in version 20090220 where a change to the FADT
1579 -handling could cause the ACPICA subsystem to access non-existent I/O ports.
6205 +Fixed a regression introduced in version 20090220 where a change to the
6206 +FADT
6207 +handling could cause the ACPICA subsystem to access non-existent I/O
6208 +ports.
1580 6209
1581 -Modified the handling of FADT register and table (FACS/DSDT) addresses. The
6210 +Modified the handling of FADT register and table (FACS/DSDT) addresses.
6211 +The
1582 6212 FADT can contain both 32-bit and 64-bit versions of these addresses.
1583 -Previously, the 64-bit versions were favored, meaning that if both 32 and 64
6213 +Previously, the 64-bit versions were favored, meaning that if both 32 and
6214 +64
1584 6215 versions were valid, but not equal, the 64-bit version was used. This was
1585 -found to cause some machines to fail. Now, in this case, the 32-bit version
6216 +found to cause some machines to fail. Now, in this case, the 32-bit
6217 +version
1586 6218 is used instead. This now matches the Windows behavior.
1587 6219
1588 -Implemented a new mechanism to protect certain I/O ports. Provides Microsoft
6220 +Implemented a new mechanism to protect certain I/O ports. Provides
6221 +Microsoft
1589 6222 compatibility and protects the standard PC I/O ports from access via AML
1590 6223 code. Adds a new file, hwvalid.c
1591 6224
1592 6225 Fixed a possible extraneous warning message from the FADT support. The
1593 6226 message warns of a 32/64 length mismatch between the legacy and GAS
1594 6227 definitions for a register.
1595 6228
1596 -Removed the obsolete AcpiOsValidateAddress OSL interface. This interface is
1597 -made obsolete by the port protection mechanism above. It was previously used
1598 -to validate the entire address range of an operation region, which could be
6229 +Removed the obsolete AcpiOsValidateAddress OSL interface. This interface
6230 +is
6231 +made obsolete by the port protection mechanism above. It was previously
6232 +used
6233 +to validate the entire address range of an operation region, which could
6234 +be
1599 6235 incorrect if the range included illegal ports, but fields within the
1600 6236 operation region did not actually access those ports. Validation is now
1601 6237 performed on a per-field basis instead of the entire region.
1602 6238
1603 6239 Modified the handling of the PM1 Status Register ignored bit (bit 11.)
1604 -Ignored bits must be "preserved" according to the ACPI spec. Usually, this
1605 -means a read/modify/write when writing to the register. However, for status
1606 -registers, writing a one means clear the event. Writing a zero means preserve
1607 -the event (do not clear.) This behavior is clarified in the ACPI 4.0 spec,
6240 +Ignored bits must be "preserved" according to the ACPI spec. Usually,
6241 +this
6242 +means a read/modify/write when writing to the register. However, for
6243 +status
6244 +registers, writing a one means clear the event. Writing a zero means
6245 +preserve
6246 +the event (do not clear.) This behavior is clarified in the ACPI 4.0
6247 +spec,
1608 6248 and the ACPICA code now simply always writes a zero to the ignored bit.
1609 6249
1610 -Modified the handling of ignored bits for the PM1 A/B Control Registers. As
6250 +Modified the handling of ignored bits for the PM1 A/B Control Registers.
6251 +As
1611 6252 per the ACPI specification, for the control registers, preserve
1612 -(read/modify/write) all bits that are defined as either reserved or ignored.
6253 +(read/modify/write) all bits that are defined as either reserved or
6254 +ignored.
1613 6255
1614 6256 Updated the handling of write-only bits in the PM1 A/B Control Registers.
1615 6257 When reading the register, zero the write-only bits as per the ACPI spec.
1616 6258 ACPICA BZ 443. Lin Ming.
1617 6259
1618 6260 Removed "Linux" from the list of supported _OSI strings. Linux no longer
1619 -wants to reply true to this request. The Windows strings are the only paths
6261 +wants to reply true to this request. The Windows strings are the only
6262 +paths
1620 6263 through the AML that are tested and known to work properly.
1621 6264
1622 6265 Previous Release:
1623 6266 Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total
1624 6267 Debug Version: 156.9K Code, 49.8K Data, 206.7K Total
1625 6268 Current Release:
1626 6269 Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total
1627 6270 Debug Version: 157.7K Code, 49.9K Data, 207.6K Total
1628 6271
1629 6272 2) iASL Compiler/Disassembler and Tools:
1630 6273
1631 -Acpiexec: Split the large aeexec.c file into two new files, aehandlers.c and
6274 +Acpiexec: Split the large aeexec.c file into two new files, aehandlers.c
6275 +and
1632 6276 aetables.c
1633 6277
1634 6278 ----------------------------------------
1635 6279 20 February 2009. Summary of changes for version 20090220:
1636 6280
1637 6281 1) ACPI CA Core Subsystem:
1638 6282
1639 -Optimized the ACPI register locking. Removed locking for reads from the ACPI
1640 -bit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is
6283 +Optimized the ACPI register locking. Removed locking for reads from the
6284 +ACPI
6285 +bit registers in PM1 Status, Enable, Control, and PM2 Control. The lock
6286 +is
1641 6287 not required when reading the single-bit registers. The
1642 -AcpiGetRegisterUnlocked function is no longer needed and has been removed.
1643 -This will improve performance for reads on these registers. ACPICA BZ 760.
6288 +AcpiGetRegisterUnlocked function is no longer needed and has been
6289 +removed.
6290 +This will improve performance for reads on these registers. ACPICA BZ
6291 +760.
1644 6292
1645 6293 Fixed the parameter validation for AcpiRead/Write. Now return
1646 -AE_BAD_PARAMETER if the input register pointer is null, and AE_BAD_ADDRESS if
1647 -the register has an address of zero. Previously, these cases simply returned
1648 -AE_OK. For optional registers such as PM1B status/enable/control, the caller
6294 +AE_BAD_PARAMETER if the input register pointer is null, and
6295 +AE_BAD_ADDRESS
6296 +if
6297 +the register has an address of zero. Previously, these cases simply
6298 +returned
6299 +AE_OK. For optional registers such as PM1B status/enable/control, the
6300 +caller
1649 6301 should check for a valid register address before calling. ACPICA BZ 748.
1650 6302
1651 6303 Renamed the external ACPI bit register access functions. Renamed
1652 6304 AcpiGetRegister and AcpiSetRegister to clarify the purpose of these
1653 -functions. The new names are AcpiReadBitRegister and AcpiWriteBitRegister.
1654 -Also, restructured the code for these functions by simplifying the code path
6305 +functions. The new names are AcpiReadBitRegister and
6306 +AcpiWriteBitRegister.
6307 +Also, restructured the code for these functions by simplifying the code
6308 +path
1655 6309 and condensing duplicate code to reduce code size.
1656 6310
1657 6311 Added new functions to transparently handle the possibly split PM1 A/B
1658 -registers. AcpiHwReadMultiple and AcpiHwWriteMultiple. These two functions
1659 -now handle the split registers for PM1 Status, Enable, and Control. ACPICA BZ
6312 +registers. AcpiHwReadMultiple and AcpiHwWriteMultiple. These two
6313 +functions
6314 +now handle the split registers for PM1 Status, Enable, and Control.
6315 +ACPICA
6316 +BZ
1660 6317 746.
1661 6318
1662 -Added a function to handle the PM1 control registers, AcpiHwWritePm1Control.
1663 -This function writes both of the PM1 control registers (A/B). These registers
1664 -are different than the PM1 A/B status and enable registers in that different
1665 -values can be written to the A/B registers. Most notably, the SLP_TYP bits
1666 -can be different, as per the values returned from the _Sx predefined methods.
6319 +Added a function to handle the PM1 control registers,
6320 +AcpiHwWritePm1Control.
6321 +This function writes both of the PM1 control registers (A/B). These
6322 +registers
6323 +are different than the PM1 A/B status and enable registers in that
6324 +different
6325 +values can be written to the A/B registers. Most notably, the SLP_TYP
6326 +bits
6327 +can be different, as per the values returned from the _Sx predefined
6328 +methods.
1667 6329
1668 -Removed an extra register write within AcpiHwClearAcpiStatus. This function
1669 -was writing an optional PM1B status register twice. The existing call to the
1670 -low-level AcpiHwRegisterWrite automatically handles a possibly split PM1 A/B
6330 +Removed an extra register write within AcpiHwClearAcpiStatus. This
6331 +function
6332 +was writing an optional PM1B status register twice. The existing call to
6333 +the
6334 +low-level AcpiHwRegisterWrite automatically handles a possibly split PM1
6335 +A/B
1671 6336 register. ACPICA BZ 751.
1672 6337
1673 -Split out the PM1 Status registers from the FADT. Added new globals for these
6338 +Split out the PM1 Status registers from the FADT. Added new globals for
6339 +these
1674 6340 registers (A/B), similar to the way the PM1 Enable registers are handled.
1675 -Instead of overloading the FADT Event Register blocks. This makes the code
6341 +Instead of overloading the FADT Event Register blocks. This makes the
6342 +code
1676 6343 clearer and less prone to error.
1677 6344
1678 -Fixed the warning message for when the platform contains too many ACPI tables
1679 -for the default size of the global root table data structure. The calculation
6345 +Fixed the warning message for when the platform contains too many ACPI
6346 +tables
6347 +for the default size of the global root table data structure. The
6348 +calculation
1680 6349 for the truncation value was incorrect.
1681 6350
1682 6351 Removed the ACPI_GET_OBJECT_TYPE macro. Removed all instances of this
1683 -obsolete macro, since it is now a simple reference to ->common.type. There
6352 +obsolete macro, since it is now a simple reference to ->common.type.
6353 +There
1684 6354 were about 150 invocations of the macro across 41 files. ACPICA BZ 755.
1685 6355
1686 6356 Removed the redundant ACPI_BITREG_SLEEP_TYPE_B. This type is the same as
1687 6357 TYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to
1688 6358 simply SLEEP_TYPE. ACPICA BZ 754.
1689 6359
1690 6360 Conditionally compile the AcpiSetFirmwareWakingVector64 function. This
1691 6361 function is only needed on 64-bit host operating systems and is thus not
1692 6362 included for 32-bit hosts.
1693 6363
1694 -Debug output: print the input and result for invocations of the _OSI reserved
1695 -control method via the ACPI_LV_INFO debug level. Also, reduced some of the
6364 +Debug output: print the input and result for invocations of the _OSI
6365 +reserved
6366 +control method via the ACPI_LV_INFO debug level. Also, reduced some of
6367 +the
1696 6368 verbosity of this debug level. Len Brown.
1697 6369
1698 6370 Example Code and Data Size: These are the sizes for the OS-independent
1699 6371 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1700 -debug version of the code includes the debug output trace mechanism and has a
6372 +debug version of the code includes the debug output trace mechanism and
6373 +has a
1701 6374 much larger code and data size.
1702 6375
1703 6376 Previous Release:
1704 6377 Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total
1705 6378 Debug Version: 157.3K Code, 49.8K Data, 207.1K Total
1706 6379 Current Release:
1707 6380 Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total
1708 6381 Debug Version: 156.9K Code, 49.8K Data, 206.7K Total
1709 6382
1710 6383 2) iASL Compiler/Disassembler and Tools:
1711 6384
1712 6385 Disassembler: Decode the FADT PM_Profile field. Emit ascii names for the
1713 6386 various legal performance profiles.
|
↓ open down ↓ |
3 lines elided |
↑ open up ↑ |
1714 6387
1715 6388 ----------------------------------------
1716 6389 23 January 2009. Summary of changes for version 20090123:
1717 6390
1718 6391 1) ACPI CA Core Subsystem:
1719 6392
1720 6393 Added the 2009 copyright to all module headers and signons. This affects
1721 6394 virtually every file in the ACPICA core subsystem, the iASL compiler, and
1722 6395 the tools/utilities.
1723 6396
1724 -Implemented a change to allow the host to override any ACPI table, including
1725 -dynamically loaded tables. Previously, only the DSDT could be replaced by the
1726 -host. With this change, the AcpiOsTableOverride interface is called for each
1727 -table found in the RSDT/XSDT during ACPICA initialization, and also whenever
6397 +Implemented a change to allow the host to override any ACPI table,
6398 +including
6399 +dynamically loaded tables. Previously, only the DSDT could be replaced by
6400 +the
6401 +host. With this change, the AcpiOsTableOverride interface is called for
6402 +each
6403 +table found in the RSDT/XSDT during ACPICA initialization, and also
6404 +whenever
1728 6405 a table is dynamically loaded via the AML Load operator.
1729 6406
1730 6407 Updated FADT flag definitions, especially the Boot Architecture flags.
1731 6408
1732 -Debugger: For the Find command, automatically pad the input ACPI name with
1733 -underscores if the name is shorter than 4 characters. This enables a match
6409 +Debugger: For the Find command, automatically pad the input ACPI name
6410 +with
6411 +underscores if the name is shorter than 4 characters. This enables a
6412 +match
1734 6413 with the actual namespace entry which is itself padded with underscores.
1735 6414
1736 6415 Example Code and Data Size: These are the sizes for the OS-independent
1737 6416 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1738 -debug version of the code includes the debug output trace mechanism and has a
6417 +debug version of the code includes the debug output trace mechanism and
6418 +has a
1739 6419 much larger code and data size.
1740 6420
1741 6421 Previous Release:
1742 6422 Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total
1743 6423 Debug Version: 157.1K Code, 49.7K Data, 206.8K Total
1744 6424 Current Release:
1745 6425 Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total
1746 6426 Debug Version: 157.3K Code, 49.8K Data, 207.1K Total
1747 6427
1748 6428 2) iASL Compiler/Disassembler and Tools:
1749 6429
1750 6430 Fix build error under Bison-2.4.
1751 6431
1752 -Dissasembler: Enhanced FADT support. Added decoding of the Boot Architecture
6432 +Dissasembler: Enhanced FADT support. Added decoding of the Boot
6433 +Architecture
1753 6434 flags. Now decode all flags, regardless of the FADT version. Flag output
1754 6435 includes the FADT version which first defined each flag.
1755 6436
1756 -The iASL -g option now dumps the RSDT to a file (in addition to the FADT and
6437 +The iASL -g option now dumps the RSDT to a file (in addition to the FADT
6438 +and
1757 6439 DSDT). Windows only.
1758 6440
1759 6441 ----------------------------------------
1760 6442 04 December 2008. Summary of changes for version 20081204:
1761 6443
1762 6444 1) ACPI CA Core Subsystem:
1763 6445
1764 -The ACPICA Programmer Reference has been completely updated and revamped for
6446 +The ACPICA Programmer Reference has been completely updated and revamped
6447 +for
1765 6448 this release. This includes updates to the external interfaces, OSL
1766 6449 interfaces, the overview sections, and the debugger reference.
1767 6450
1768 6451 Several new ACPICA interfaces have been implemented and documented in the
1769 6452 programmer reference:
1770 6453 AcpiReset - Writes the reset value to the FADT-defined reset register.
1771 6454 AcpiDisableAllGpes - Disable all available GPEs.
1772 6455 AcpiEnableAllRuntimeGpes - Enable all available runtime GPEs.
1773 6456 AcpiGetGpeDevice - Get the GPE block device associated with a GPE.
1774 6457 AcpiGbl_CurrentGpeCount - Tracks the current number of available GPEs.
1775 6458 AcpiRead - Low-level read ACPI register (was HwLowLevelRead.)
1776 6459 AcpiWrite - Low-level write ACPI register (was HwLowLevelWrite.)
1777 6460
1778 -Most of the public ACPI hardware-related interfaces have been moved to a new
6461 +Most of the public ACPI hardware-related interfaces have been moved to a
6462 +new
1779 6463 file, components/hardware/hwxface.c
1780 6464
1781 6465 Enhanced the FADT parsing and low-level ACPI register access: The ACPI
1782 6466 register lengths within the FADT are now used, and the low level ACPI
1783 6467 register access no longer hardcodes the ACPI register lengths. Given that
1784 -there may be some risk in actually trusting the FADT register lengths, a run-
1785 -time option was added to fall back to the default hardcoded lengths if the
6468 +there may be some risk in actually trusting the FADT register lengths, a
6469 +run-
6470 +time option was added to fall back to the default hardcoded lengths if
6471 +the
1786 6472 FADT proves to contain incorrect values - UseDefaultRegisterWidths. This
1787 -option is set to true for now, and a warning is issued if a suspicious FADT
6473 +option is set to true for now, and a warning is issued if a suspicious
6474 +FADT
1788 6475 register length is overridden with the default value.
1789 6476
1790 -Fixed a reference count issue in NsRepairObject. This problem was introduced
6477 +Fixed a reference count issue in NsRepairObject. This problem was
6478 +introduced
1791 6479 in version 20081031 as part of a fix to repair Buffer objects within
1792 6480 Packages. Lin Ming.
1793 6481
1794 6482 Added semaphore support to the Linux/Unix application OS-services layer
1795 6483 (OSL). ACPICA BZ 448. Lin Ming.
1796 6484
1797 -Added the ACPI_MUTEX_TYPE configuration option to select whether mutexes will
6485 +Added the ACPI_MUTEX_TYPE configuration option to select whether mutexes
6486 +will
1798 6487 be implemented in the OSL, or will binary semaphores be used instead.
1799 6488
1800 6489 Example Code and Data Size: These are the sizes for the OS-independent
1801 6490 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1802 -debug version of the code includes the debug output trace mechanism and has a
6491 +debug version of the code includes the debug output trace mechanism and
6492 +has a
1803 6493 much larger code and data size.
1804 6494
1805 6495 Previous Release:
1806 6496 Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total
1807 6497 Debug Version: 156.4K Code, 49.4K Data, 205.8K Total
1808 6498 Current Release:
1809 6499 Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total
1810 6500 Debug Version: 157.1K Code, 49.7K Data, 206.8K Total
1811 6501
1812 6502 2) iASL Compiler/Disassembler and Tools:
1813 6503
1814 -iASL: Completed the '-e' option to include additional ACPI tables in order to
1815 -aid with disassembly and External statement generation. ACPICA BZ 742. Lin
6504 +iASL: Completed the '-e' option to include additional ACPI tables in
6505 +order
6506 +to
6507 +aid with disassembly and External statement generation. ACPICA BZ 742.
6508 +Lin
1816 6509 Ming.
1817 6510
1818 6511 iASL: Removed the "named object in while loop" error. The compiler cannot
1819 6512 determine how many times a loop will execute. ACPICA BZ 730.
1820 6513
1821 -Disassembler: Implemented support for FADT revision 2 (MS extension). ACPICA
6514 +Disassembler: Implemented support for FADT revision 2 (MS extension).
6515 +ACPICA
1822 6516 BZ 743.
1823 6517
1824 -Disassembler: Updates for several ACPI data tables (HEST, EINJ, and MCFG).
6518 +Disassembler: Updates for several ACPI data tables (HEST, EINJ, and
6519 +MCFG).
1825 6520
1826 6521 ----------------------------------------
1827 6522 31 October 2008. Summary of changes for version 20081031:
1828 6523
1829 6524 1) ACPI CA Core Subsystem:
1830 6525
1831 -Restructured the ACPICA header files into public/private. acpi.h now includes
1832 -only the "public" acpica headers. All other acpica headers are "private" and
1833 -should not be included by acpica users. One new file, accommon.h is used to
1834 -include the commonly used private headers for acpica code generation. Future
6526 +Restructured the ACPICA header files into public/private. acpi.h now
6527 +includes
6528 +only the "public" acpica headers. All other acpica headers are "private"
6529 +and
6530 +should not be included by acpica users. One new file, accommon.h is used
6531 +to
6532 +include the commonly used private headers for acpica code generation.
6533 +Future
1835 6534 plans include moving all private headers to a new subdirectory.
1836 6535
1837 6536 Implemented an automatic Buffer->String return value conversion for
1838 -predefined ACPI methods. For these methods (such as _BIF), added automatic
1839 -conversion for return objects that are required to be a String, but a Buffer
1840 -was found instead. This can happen when reading string battery data from an
1841 -operation region, because it used to be difficult to convert the data from
1842 -buffer to string from within the ASL. Ensures that the host OS is provided
6537 +predefined ACPI methods. For these methods (such as _BIF), added
6538 +automatic
6539 +conversion for return objects that are required to be a String, but a
6540 +Buffer
6541 +was found instead. This can happen when reading string battery data from
6542 +an
6543 +operation region, because it used to be difficult to convert the data
6544 +from
6545 +buffer to string from within the ASL. Ensures that the host OS is
6546 +provided
1843 6547 with a valid null-terminated string. Linux BZ 11822.
1844 6548
1845 -Updated the FACS waking vector interfaces. Split AcpiSetFirmwareWakingVector
1846 -into two: one for the 32-bit vector, another for the 64-bit vector. This is
1847 -required because the host OS must setup the wake much differently for each
1848 -vector (real vs. protected mode, etc.) and the interface itself should not be
1849 -deciding which vector to use. Also, eliminated the GetFirmwareWakingVector
1850 -interface, as it served no purpose (only the firmware reads the vector, OS
6549 +Updated the FACS waking vector interfaces. Split
6550 +AcpiSetFirmwareWakingVector
6551 +into two: one for the 32-bit vector, another for the 64-bit vector. This
6552 +is
6553 +required because the host OS must setup the wake much differently for
6554 +each
6555 +vector (real vs. protected mode, etc.) and the interface itself should
6556 +not
6557 +be
6558 +deciding which vector to use. Also, eliminated the
6559 +GetFirmwareWakingVector
6560 +interface, as it served no purpose (only the firmware reads the vector,
6561 +OS
1851 6562 only writes the vector.) ACPICA BZ 731.
1852 6563
1853 -Implemented a mechanism to escape infinite AML While() loops. Added a loop
1854 -counter to force exit from AML While loops if the count becomes too large.
6564 +Implemented a mechanism to escape infinite AML While() loops. Added a
6565 +loop
6566 +counter to force exit from AML While loops if the count becomes too
6567 +large.
1855 6568 This can occur in poorly written AML when the hardware does not respond
1856 -within a while loop and the loop does not implement a timeout. The maximum
1857 -loop count is configurable. A new exception code is returned when a loop is
6569 +within a while loop and the loop does not implement a timeout. The
6570 +maximum
6571 +loop count is configurable. A new exception code is returned when a loop
6572 +is
1858 6573 broken, AE_AML_INFINITE_LOOP. Alexey Starikovskiy, Bob Moore.
1859 6574
1860 6575 Optimized the execution of AML While loops. Previously, a control state
1861 6576 object was allocated and freed for each execution of the loop. The
1862 -optimization is to simply reuse the control state for each iteration. This
6577 +optimization is to simply reuse the control state for each iteration.
6578 +This
1863 6579 speeds up the raw loop execution time by about 5%.
1864 6580
1865 -Enhanced the implicit return mechanism. For Windows compatibility, return an
1866 -implicit integer of value zero for methods that contain no executable code.
6581 +Enhanced the implicit return mechanism. For Windows compatibility, return
6582 +an
6583 +implicit integer of value zero for methods that contain no executable
6584 +code.
1867 6585 Such methods are seen in the field as stubs (presumably), and can cause
1868 6586 drivers to fail if they expect a return value. Lin Ming.
1869 6587
1870 6588 Allow multiple backslashes as root prefixes in namepaths. In a fully
1871 -qualified namepath, allow multiple backslash prefixes. This can happen (and
6589 +qualified namepath, allow multiple backslash prefixes. This can happen
6590 +(and
1872 6591 is seen in the field) because of the use of a double-backslash in strings
1873 -(since backslash is the escape character) causing confusion. ACPICA BZ 739
6592 +(since backslash is the escape character) causing confusion. ACPICA BZ
6593 +739
1874 6594 Lin Ming.
1875 6595
1876 6596 Emit a warning if two different FACS or DSDT tables are discovered in the
1877 -FADT. Checks if there are two valid but different addresses for the FACS and
6597 +FADT. Checks if there are two valid but different addresses for the FACS
6598 +and
1878 6599 DSDT within the FADT (mismatch between the 32-bit and 64-bit fields.)
1879 6600
1880 -Consolidated the method argument count validation code. Merged the code that
6601 +Consolidated the method argument count validation code. Merged the code
6602 +that
1881 6603 validates control method argument counts into the predefined validation
1882 -module. Eliminates possible multiple warnings for incorrect argument counts.
6604 +module. Eliminates possible multiple warnings for incorrect argument
6605 +counts.
1883 6606
1884 6607 Implemented ACPICA example code. Includes code for ACPICA initialization,
1885 6608 handler installation, and calling a control method. Available at
1886 6609 source/tools/examples.
1887 6610
1888 -Added a global pointer for FACS table to simplify internal FACS access. Use
1889 -the global pointer instead of using AcpiGetTableByIndex for each FACS access.
6611 +Added a global pointer for FACS table to simplify internal FACS access.
6612 +Use
6613 +the global pointer instead of using AcpiGetTableByIndex for each FACS
6614 +access.
1890 6615 This simplifies the code for the Global Lock and the Firmware Waking
1891 6616 Vector(s).
1892 6617
1893 6618 Example Code and Data Size: These are the sizes for the OS-independent
1894 6619 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1895 -debug version of the code includes the debug output trace mechanism and has a
6620 +debug version of the code includes the debug output trace mechanism and
6621 +has a
1896 6622 much larger code and data size.
1897 6623
1898 6624 Previous Release:
1899 6625 Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total
1900 6626 Debug Version: 155.8K Code, 49.1K Data, 204.9K Total
1901 6627 Current Release:
1902 6628 Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total
1903 6629 Debug Version: 156.4K Code, 49.4K Data, 205.8K Total
1904 6630
1905 6631 2) iASL Compiler/Disassembler and Tools:
1906 6632
1907 -iASL: Improved disassembly of external method calls. Added the -e option to
1908 -allow the inclusion of additional ACPI tables to help with the disassembly of
6633 +iASL: Improved disassembly of external method calls. Added the -e option
6634 +to
6635 +allow the inclusion of additional ACPI tables to help with the
6636 +disassembly
6637 +of
1909 6638 method invocations and the generation of external declarations during the
1910 6639 disassembly. Certain external method invocations cannot be disassembled
1911 -properly without the actual declaration of the method. Use the -e option to
1912 -include the table where the external method(s) are actually declared. Most
6640 +properly without the actual declaration of the method. Use the -e option
6641 +to
6642 +include the table where the external method(s) are actually declared.
6643 +Most
1913 6644 useful for disassembling SSDTs that make method calls back to the master
1914 -DSDT. Lin Ming. Example: To disassemble an SSDT with calls to DSDT: iasl -d
6645 +DSDT. Lin Ming. Example: To disassemble an SSDT with calls to DSDT: iasl
6646 +-d
1915 6647 -e dsdt.aml ssdt1.aml
1916 6648
1917 6649 iASL: Fix to allow references to aliases within ASL namepaths. Fixes a
1918 6650 problem where the use of an alias within a namepath would result in a not
1919 6651 found error or cause the compiler to fault. Also now allows forward
1920 6652 references from the Alias operator itself. ACPICA BZ 738.
1921 6653
1922 6654 ----------------------------------------
1923 6655 26 September 2008. Summary of changes for version 20080926:
1924 6656
1925 6657 1) ACPI CA Core Subsystem:
1926 6658
1927 -Designed and implemented a mechanism to validate predefined ACPI methods and
1928 -objects. This code validates the predefined ACPI objects (objects whose names
6659 +Designed and implemented a mechanism to validate predefined ACPI methods
6660 +and
6661 +objects. This code validates the predefined ACPI objects (objects whose
6662 +names
1929 6663 start with underscore) that appear in the namespace, at the time they are
1930 6664 evaluated. The argument count and the type of the returned object are
1931 -validated against the ACPI specification. The purpose of this validation is
1932 -to detect problems with the BIOS-implemented predefined ACPI objects before
1933 -the results are returned to the ACPI-related drivers. Future enhancements may
6665 +validated against the ACPI specification. The purpose of this validation
6666 +is
6667 +to detect problems with the BIOS-implemented predefined ACPI objects
6668 +before
6669 +the results are returned to the ACPI-related drivers. Future enhancements
6670 +may
1934 6671 include actual repair of incorrect return objects where possible. Two new
1935 6672 files are nspredef.c and acpredef.h.
1936 6673
1937 -Fixed a fault in the AML parser if a memory allocation fails during the Op
6674 +Fixed a fault in the AML parser if a memory allocation fails during the
6675 +Op
1938 6676 completion routine AcpiPsCompleteThisOp. Lin Ming. ACPICA BZ 492.
1939 6677
1940 -Fixed an issue with implicit return compatibility. This change improves the
1941 -implicit return mechanism to be more compatible with the MS interpreter. Lin
6678 +Fixed an issue with implicit return compatibility. This change improves
6679 +the
6680 +implicit return mechanism to be more compatible with the MS interpreter.
6681 +Lin
1942 6682 Ming, ACPICA BZ 349.
1943 6683
1944 -Implemented support for zero-length buffer-to-string conversions. Allow zero
1945 -length strings during interpreter buffer-to-string conversions. For example,
6684 +Implemented support for zero-length buffer-to-string conversions. Allow
6685 +zero
6686 +length strings during interpreter buffer-to-string conversions. For
6687 +example,
1946 6688 during the ToDecimalString and ToHexString operators, as well as implicit
1947 6689 conversions. Fiodor Suietov, ACPICA BZ 585.
1948 6690
1949 6691 Fixed two possible memory leaks in the error exit paths of
1950 -AcpiUtUpdateObjectReference and AcpiUtWalkPackageTree. These functions are
6692 +AcpiUtUpdateObjectReference and AcpiUtWalkPackageTree. These functions
6693 +are
1951 6694 similar in that they use a stack of state objects in order to eliminate
1952 6695 recursion. The stack must be fully unwound and deallocated if an error
1953 6696 occurs. Lin Ming. ACPICA BZ 383.
1954 6697
1955 -Removed the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the global
6698 +Removed the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the
6699 +global
1956 6700 ACPI register table. This bit does not exist and is unused. Lin Ming, Bob
1957 6701 Moore ACPICA BZ 442.
1958 6702
1959 6703 Removed the obsolete version number in module headers. Removed the
1960 -"$Revision" number that appeared in each module header. This version number
1961 -was useful under SourceSafe and CVS, but has no meaning under git. It is not
6704 +"$Revision" number that appeared in each module header. This version
6705 +number
6706 +was useful under SourceSafe and CVS, but has no meaning under git. It is
6707 +not
1962 6708 only incorrect, it could also be misleading.
1963 6709
1964 6710 Example Code and Data Size: These are the sizes for the OS-independent
1965 6711 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
1966 -debug version of the code includes the debug output trace mechanism and has a
6712 +debug version of the code includes the debug output trace mechanism and
6713 +has a
1967 6714 much larger code and data size.
1968 6715
1969 6716 Previous Release:
1970 6717 Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total
1971 6718 Debug Version: 153.7K Code, 48.2K Data, 201.9K Total
1972 6719 Current Release:
1973 6720 Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total
1974 6721 Debug Version: 155.8K Code, 49.1K Data, 204.9K Total
1975 6722
1976 6723 ----------------------------------------
1977 6724 29 August 2008. Summary of changes for version 20080829:
1978 6725
1979 6726 1) ACPI CA Core Subsystem:
1980 6727
1981 6728 Completed a major cleanup of the internal ACPI_OPERAND_OBJECT of type
1982 -Reference. Changes include the elimination of cheating on the Object field
6729 +Reference. Changes include the elimination of cheating on the Object
6730 +field
1983 6731 for the DdbHandle subtype, addition of a reference class field to
1984 -differentiate the various reference types (instead of an AML opcode), and the
6732 +differentiate the various reference types (instead of an AML opcode), and
6733 +the
1985 6734 cleanup of debug output for this object. Lin Ming, Bob Moore. BZ 723
1986 6735
1987 6736 Reduce an error to a warning for an incorrect method argument count.
1988 6737 Previously aborted with an error if too few arguments were passed to a
1989 -control method via the external ACPICA interface. Now issue a warning instead
1990 -and continue. Handles the case where the method inadvertently declares too
1991 -many arguments, but does not actually use the extra ones. Applies mainly to
6738 +control method via the external ACPICA interface. Now issue a warning
6739 +instead
6740 +and continue. Handles the case where the method inadvertently declares
6741 +too
6742 +many arguments, but does not actually use the extra ones. Applies mainly
6743 +to
1992 6744 the predefined methods. Lin Ming. Linux BZ 11032.
1993 6745
1994 -Disallow the evaluation of named object types with no intrinsic value. Return
1995 -AE_TYPE for objects that have no value and therefore evaluation is undefined:
1996 -Device, Event, Mutex, Region, Thermal, and Scope. Previously, evaluation of
1997 -these types were allowed, but an exception would be generated at some point
6746 +Disallow the evaluation of named object types with no intrinsic value.
6747 +Return
6748 +AE_TYPE for objects that have no value and therefore evaluation is
6749 +undefined:
6750 +Device, Event, Mutex, Region, Thermal, and Scope. Previously, evaluation
6751 +of
6752 +these types were allowed, but an exception would be generated at some
6753 +point
1998 6754 during the evaluation. Now, the error is generated up front.
1999 6755
2000 6756 Fixed a possible memory leak in the AcpiNsGetExternalPathname function
2001 6757 (nsnames.c). Fixes a leak in the error exit path.
2002 6758
2003 -Removed the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These debug
2004 -levels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and ACPI_EXCEPTION
6759 +Removed the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These
6760 +debug
6761 +levels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and
6762 +ACPI_EXCEPTION
2005 6763 interfaces. Also added ACPI_DB_EVENTS to correspond with the existing
2006 6764 ACPI_LV_EVENTS.
2007 6765
2008 6766 Removed obsolete and/or unused exception codes from the acexcep.h header.
2009 -There is the possibility that certain device drivers may be affected if they
6767 +There is the possibility that certain device drivers may be affected if
6768 +they
2010 6769 use any of these exceptions.
2011 6770
2012 -The ACPICA documentation has been added to the public git source tree, under
6771 +The ACPICA documentation has been added to the public git source tree,
6772 +under
2013 6773 acpica/documents. Included are the ACPICA programmer reference, the iASL
2014 6774 compiler reference, and the changes.txt release logfile.
2015 6775
2016 6776 Example Code and Data Size: These are the sizes for the OS-independent
2017 6777 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2018 -debug version of the code includes the debug output trace mechanism and has a
6778 +debug version of the code includes the debug output trace mechanism and
6779 +has a
2019 6780 much larger code and data size.
2020 6781
2021 6782 Previous Release:
2022 6783 Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total
2023 6784 Debug Version: 153.9K Code, 48.4K Data, 202.3K Total
2024 6785 Current Release:
2025 6786 Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total
2026 6787 Debug Version: 153.7K Code, 48.2K Data, 201.9K Total
2027 6788
2028 6789 2) iASL Compiler/Disassembler and Tools:
2029 6790
2030 6791 Allow multiple argument counts for the predefined _SCP method. ACPI 3.0
2031 6792 defines _SCP with 3 arguments. Previous versions defined it with only 1
2032 6793 argument. iASL now allows both definitions.
2033 6794
2034 -iASL/disassembler: avoid infinite loop on bad ACPI tables. Check for zero-
6795 +iASL/disassembler: avoid infinite loop on bad ACPI tables. Check for
6796 +zero-
2035 6797 length subtables when disassembling ACPI tables. Also fixed a couple of
2036 -errors where a full 16-bit table type field was not extracted from the input
6798 +errors where a full 16-bit table type field was not extracted from the
6799 +input
2037 6800 properly.
2038 6801
2039 6802 acpisrc: Improve comment counting mechanism for generating source code
2040 -statistics. Count first and last lines of multi-line comments as whitespace,
2041 -not comment lines. Handle Linux legal header in addition to standard acpica
6803 +statistics. Count first and last lines of multi-line comments as
6804 +whitespace,
6805 +not comment lines. Handle Linux legal header in addition to standard
6806 +acpica
2042 6807 header.
2043 6808
2044 6809 ----------------------------------------
2045 6810
2046 6811 29 July 2008. Summary of changes for version 20080729:
2047 6812
2048 6813 1) ACPI CA Core Subsystem:
2049 6814
2050 6815 Fix a possible deadlock in the GPE dispatch. Remove call to
2051 -AcpiHwDisableAllGpes during wake in AcpiEvGpeDispatch. This call will attempt
2052 -to acquire the GPE lock but can deadlock since the GPE lock is already held
2053 -at dispatch time. This code was introduced in version 20060831 as a response
6816 +AcpiHwDisableAllGpes during wake in AcpiEvGpeDispatch. This call will
6817 +attempt
6818 +to acquire the GPE lock but can deadlock since the GPE lock is already
6819 +held
6820 +at dispatch time. This code was introduced in version 20060831 as a
6821 +response
2054 6822 to Linux BZ 6881 and has since been removed from Linux.
2055 6823
2056 -Add a function to dereference returned reference objects. Examines the return
2057 -object from a call to AcpiEvaluateObject. Any Index or RefOf references are
2058 -automatically dereferenced in an attempt to return something useful (these
2059 -reference types cannot be converted into an external ACPI_OBJECT.) Provides
6824 +Add a function to dereference returned reference objects. Examines the
6825 +return
6826 +object from a call to AcpiEvaluateObject. Any Index or RefOf references
6827 +are
6828 +automatically dereferenced in an attempt to return something useful
6829 +(these
6830 +reference types cannot be converted into an external ACPI_OBJECT.)
6831 +Provides
2060 6832 MS compatibility. Lin Ming, Bob Moore. Linux BZ 11105
2061 6833
2062 6834 x2APIC support: changes for MADT and SRAT ACPI tables. There are 2 new
2063 6835 subtables for the MADT and one new subtable for the SRAT. Includes
2064 -disassembler and AcpiSrc support. Data from the Intel 64 Architecture x2APIC
6836 +disassembler and AcpiSrc support. Data from the Intel 64 Architecture
6837 +x2APIC
2065 6838 Specification, June 2008.
2066 6839
2067 -Additional error checking for pathname utilities. Add error check after all
6840 +Additional error checking for pathname utilities. Add error check after
6841 +all
2068 6842 calls to AcpiNsGetPathnameLength. Add status return from
2069 -AcpiNsBuildExternalPath and check after all calls. Add parameter validation
6843 +AcpiNsBuildExternalPath and check after all calls. Add parameter
6844 +validation
2070 6845 to AcpiUtInitializeBuffer. Reported by and initial patch by Ingo Molnar.
2071 6846
2072 -Return status from the global init function AcpiUtGlobalInitialize. This is
2073 -used by both the kernel subsystem and the utilities such as iASL compiler.
2074 -The function could possibly fail when the caches are initialized. Yang Yi.
6847 +Return status from the global init function AcpiUtGlobalInitialize. This
6848 +is
6849 +used by both the kernel subsystem and the utilities such as iASL
6850 +compiler.
6851 +The function could possibly fail when the caches are initialized. Yang
6852 +Yi.
2075 6853
2076 6854 Add a function to decode reference object types to strings. Created for
2077 6855 improved error messages.
2078 6856
2079 -Improve object conversion error messages. Better error messages during object
2080 -conversion from internal to the external ACPI_OBJECT. Used for external calls
6857 +Improve object conversion error messages. Better error messages during
6858 +object
6859 +conversion from internal to the external ACPI_OBJECT. Used for external
6860 +calls
2081 6861 to AcpiEvaluateObject.
2082 6862
2083 6863 Example Code and Data Size: These are the sizes for the OS-independent
2084 6864 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2085 -debug version of the code includes the debug output trace mechanism and has a
6865 +debug version of the code includes the debug output trace mechanism and
6866 +has a
2086 6867 much larger code and data size.
2087 6868
2088 6869 Previous Release:
2089 6870 Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total
2090 6871 Debug Version: 153.5K Code, 48.2K Data, 201.7K Total
2091 6872 Current Release:
2092 6873 Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total
2093 6874 Debug Version: 153.9K Code, 48.4K Data, 202.3K Total
2094 6875
2095 6876 2) iASL Compiler/Disassembler and Tools:
2096 6877
2097 -Debugger: fix a possible hang when evaluating non-methods. Fixes a problem
2098 -introduced in version 20080701. If the object being evaluated (via execute
2099 -command) is not a method, the debugger can hang while trying to obtain non-
6878 +Debugger: fix a possible hang when evaluating non-methods. Fixes a
6879 +problem
6880 +introduced in version 20080701. If the object being evaluated (via
6881 +execute
6882 +command) is not a method, the debugger can hang while trying to obtain
6883 +non-
2100 6884 existent parameters.
2101 6885
2102 6886 iASL: relax error for using reserved "_T_x" identifiers. These names can
2103 6887 appear in a disassembled ASL file if they were emitted by the original
2104 6888 compiler. Instead of issuing an error or warning and forcing the user to
2105 6889 manually change these names, issue a remark instead.
2106 6890
2107 -iASL: error if named object created in while loop. Emit an error if any named
2108 -object is created within a While loop. If allowed, this code will generate a
2109 -run-time error on the second iteration of the loop when an attempt is made to
6891 +iASL: error if named object created in while loop. Emit an error if any
6892 +named
6893 +object is created within a While loop. If allowed, this code will
6894 +generate
6895 +a
6896 +run-time error on the second iteration of the loop when an attempt is
6897 +made
6898 +to
2110 6899 create the same named object twice. ACPICA bugzilla 730.
2111 6900
2112 -iASL: Support absolute pathnames for include files. Add support for absolute
2113 -pathnames within the Include operator. previously, only relative pathnames
6901 +iASL: Support absolute pathnames for include files. Add support for
6902 +absolute
6903 +pathnames within the Include operator. previously, only relative
6904 +pathnames
2114 6905 were supported.
2115 6906
2116 -iASL: Enforce minimum 1 interrupt in interrupt macro and Resource Descriptor.
6907 +iASL: Enforce minimum 1 interrupt in interrupt macro and Resource
6908 +Descriptor.
2117 6909 The ACPI spec requires one interrupt minimum. BZ 423
2118 6910
2119 6911 iASL: Handle a missing ResourceSource arg, with a present SourceIndex.
2120 6912 Handles the case for the Interrupt Resource Descriptor where
2121 6913 the ResourceSource argument is omitted but ResourceSourceIndex
2122 6914 is present. Now leave room for the Index. BZ 426
2123 6915
2124 -iASL: Prevent error message if CondRefOf target does not exist. Fixes cases
6916 +iASL: Prevent error message if CondRefOf target does not exist. Fixes
6917 +cases
2125 6918 where an error message is emitted if the target does not exist. BZ 516
2126 6919
2127 6920 iASL: Fix broken -g option (get Windows ACPI tables). Fixes the -g option
2128 -(get ACPI tables on Windows). This was apparently broken in version 20070919.
6921 +(get ACPI tables on Windows). This was apparently broken in version
6922 +20070919.
2129 6923
2130 -AcpiXtract: Handle EOF while extracting data. Correctly handle the case where
6924 +AcpiXtract: Handle EOF while extracting data. Correctly handle the case
6925 +where
2131 6926 the EOF happens immediately after the last table in the input file. Print
2132 6927 completion message. Previously, no message was displayed in this case.
2133 6928
2134 6929 ----------------------------------------
2135 6930 01 July 2008. Summary of changes for version 20080701:
2136 6931
2137 6932 0) Git source tree / acpica.org
2138 6933
2139 6934 Fixed a problem where a git-clone from http would not transfer the entire
2140 6935 source tree.
2141 6936
2142 6937 1) ACPI CA Core Subsystem:
2143 6938
2144 6939 Implemented a "careful" GPE disable in AcpiEvDisableGpe, only modify one
2145 -enable bit. Now performs a read-change-write of the enable register instead
2146 -of simply writing out the cached enable mask. This will prevent inadvertent
2147 -enabling of GPEs if a rogue GPE is received during initialization (before GPE
6940 +enable bit. Now performs a read-change-write of the enable register
6941 +instead
6942 +of simply writing out the cached enable mask. This will prevent
6943 +inadvertent
6944 +enabling of GPEs if a rogue GPE is received during initialization (before
6945 +GPE
2148 6946 handlers are installed.)
2149 6947
2150 6948 Implemented a copy for dynamically loaded tables. Previously, dynamically
2151 6949 loaded tables were simply mapped - but on some machines this memory is
2152 6950 corrupted after suspend. Now copy the table to a local buffer. For the
2153 6951 OpRegion case, added checksum verify. Use the table length from the table
2154 6952 header, not the region length. For the Buffer case, use the table length
2155 6953 also. Dennis Noordsij, Bob Moore. BZ 10734
2156 6954
2157 -Fixed a problem where the same ACPI table could not be dynamically loaded and
2158 -unloaded more than once. Without this change, a table cannot be loaded again
6955 +Fixed a problem where the same ACPI table could not be dynamically loaded
6956 +and
6957 +unloaded more than once. Without this change, a table cannot be loaded
6958 +again
2159 6959 once it has been loaded/unloaded one time. The current mechanism does not
2160 -unregister a table upon an unload. During a load, if the same table is found,
6960 +unregister a table upon an unload. During a load, if the same table is
6961 +found,
2161 6962 this no longer returns an exception. BZ 722
2162 6963
2163 6964 Fixed a problem where the wrong descriptor length was calculated for the
2164 -EndTag descriptor in 64-bit mode. The "minimal" descriptors such as EndTag
6965 +EndTag descriptor in 64-bit mode. The "minimal" descriptors such as
6966 +EndTag
2165 6967 are calculated as 12 bytes long, but the actual length in the internal
2166 -descriptor is 16 because of the round-up to 8 on the 64-bit build. Reported
6968 +descriptor is 16 because of the round-up to 8 on the 64-bit build.
6969 +Reported
2167 6970 by Linn Crosetto. BZ 728
2168 6971
2169 -Fixed a possible memory leak in the Unload operator. The DdbHandle returned
2170 -by Load() did not have its reference count decremented during unload, leading
6972 +Fixed a possible memory leak in the Unload operator. The DdbHandle
6973 +returned
6974 +by Load() did not have its reference count decremented during unload,
6975 +leading
2171 6976 to a memory leak. Lin Ming. BZ 727
2172 6977
2173 6978 Fixed a possible memory leak when deleting thermal/processor objects. Any
2174 6979 associated notify handlers (and objects) were not being deleted. Fiodor
2175 6980 Suietov. BZ 506
2176 6981
2177 -Fixed the ordering of the ASCII names in the global mutex table to match the
2178 -actual mutex IDs. Used by AcpiUtGetMutexName, a function used for debug only.
6982 +Fixed the ordering of the ASCII names in the global mutex table to match
6983 +the
6984 +actual mutex IDs. Used by AcpiUtGetMutexName, a function used for debug
6985 +only.
2179 6986 Vegard Nossum. BZ 726
2180 6987
2181 6988 Enhanced the AcpiGetObjectInfo interface to return the number of required
2182 -arguments if the object is a control method. Added this call to the debugger
6989 +arguments if the object is a control method. Added this call to the
6990 +debugger
2183 6991 so the proper number of default arguments are passed to a method. This
2184 6992 prevents a warning when executing methods from AcpiExec.
2185 6993
2186 6994 Added a check for an invalid handle in AcpiGetObjectInfo. Return
2187 6995 AE_BAD_PARAMETER if input handle is invalid. BZ 474
2188 6996
2189 6997 Fixed an extraneous warning from exconfig.c on the 64-bit build.
2190 6998
2191 6999 Example Code and Data Size: These are the sizes for the OS-independent
2192 7000 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2193 -debug version of the code includes the debug output trace mechanism and has a
7001 +debug version of the code includes the debug output trace mechanism and
7002 +has a
2194 7003 much larger code and data size.
2195 7004
2196 7005 Previous Release:
2197 7006 Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total
2198 7007 Debug Version: 153.0K Code, 48.2K Data, 201.2K Total
2199 7008 Current Release:
2200 7009 Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total
2201 7010 Debug Version: 153.5K Code, 48.2K Data, 201.7K Total
2202 7011
2203 7012 2) iASL Compiler/Disassembler and Tools:
2204 7013
2205 7014 iASL: Added two missing ACPI reserved names. Added _MTP and _ASZ, both
2206 7015 resource descriptor names.
2207 7016
2208 -iASL: Detect invalid ASCII characters in input (windows version). Removed the
7017 +iASL: Detect invalid ASCII characters in input (windows version). Removed
7018 +the
2209 7019 "-CF" flag from the flex compile, enables correct detection of non-ASCII
2210 7020 characters in the input. BZ 441
2211 7021
2212 -iASL: Eliminate warning when result of LoadTable is not used. Eliminate the
7022 +iASL: Eliminate warning when result of LoadTable is not used. Eliminate
7023 +the
2213 7024 "result of operation not used" warning when the DDB handle returned from
2214 7025 LoadTable is not used. The warning is not needed. BZ 590
2215 7026
2216 -AcpiExec: Add support for dynamic table load/unload. Now calls _CFG method to
2217 -pass address of table to the AML. Added option to disable OpRegion simulation
2218 -to allow creation of an OpRegion with a real address that was passed to _CFG.
2219 -All of this allows testing of the Load and Unload operators from AcpiExec.
7027 +AcpiExec: Add support for dynamic table load/unload. Now calls _CFG
7028 +method
7029 +to
7030 +pass address of table to the AML. Added option to disable OpRegion
7031 +simulation
7032 +to allow creation of an OpRegion with a real address that was passed to
7033 +_CFG.
7034 +All of this allows testing of the Load and Unload operators from
7035 +AcpiExec.
2220 7036
2221 -Debugger: update tables command for unloaded tables. Handle unloaded tables
7037 +Debugger: update tables command for unloaded tables. Handle unloaded
7038 +tables
2222 7039 and use the standard table header output routine.
2223 7040
2224 7041 ----------------------------------------
2225 7042 09 June 2008. Summary of changes for version 20080609:
2226 7043
2227 7044 1) ACPI CA Core Subsystem:
2228 7045
2229 -Implemented a workaround for reversed _PRT entries. A significant number of
7046 +Implemented a workaround for reversed _PRT entries. A significant number
7047 +of
2230 7048 BIOSs erroneously reverse the _PRT SourceName and the SourceIndex. This
2231 -change dynamically detects and repairs this problem. Provides compatibility
7049 +change dynamically detects and repairs this problem. Provides
7050 +compatibility
2232 7051 with MS ACPI. BZ 6859
2233 7052
2234 7053 Simplified the internal ACPI hardware interfaces to eliminate the locking
2235 7054 flag parameter from Register Read/Write. Added a new external interface,
2236 7055 AcpiGetRegisterUnlocked.
2237 7056
2238 -Fixed a problem where the invocation of a GPE control method could hang. This
7057 +Fixed a problem where the invocation of a GPE control method could hang.
7058 +This
2239 7059 was a regression introduced in 20080514. The new method argument count
2240 7060 validation mechanism can enter an infinite loop when a GPE method is
2241 -dispatched. Problem fixed by removing the obsolete code that passed GPE block
2242 -information to the notify handler via the control method parameter pointer.
7061 +dispatched. Problem fixed by removing the obsolete code that passed GPE
7062 +block
7063 +information to the notify handler via the control method parameter
7064 +pointer.
2243 7065
2244 -Fixed a problem where the _SST execution status was incorrectly returned to
2245 -the caller of AcpiEnterSleepStatePrep. This was a regression introduced in
7066 +Fixed a problem where the _SST execution status was incorrectly returned
7067 +to
7068 +the caller of AcpiEnterSleepStatePrep. This was a regression introduced
7069 +in
2246 7070 20080514. _SST is optional and a NOT_FOUND exception should never be
2247 7071 returned. BZ 716
2248 7072
2249 -Fixed a problem where a deleted object could be accessed from within the AML
2250 -parser. This was a regression introduced in version 20080123 as a fix for the
7073 +Fixed a problem where a deleted object could be accessed from within the
7074 +AML
7075 +parser. This was a regression introduced in version 20080123 as a fix for
7076 +the
2251 7077 Unload operator. Lin Ming. BZ 10669
2252 7078
2253 -Cleaned up the debug operand dump mechanism. Eliminated unnecessary operands
7079 +Cleaned up the debug operand dump mechanism. Eliminated unnecessary
7080 +operands
2254 7081 and eliminated the use of a negative index in a loop. Operands are now
2255 -displayed in the correct order, not backwards. This also fixes a regression
7082 +displayed in the correct order, not backwards. This also fixes a
7083 +regression
2256 7084 introduced in 20080514 on 64-bit systems where the elimination of
2257 -ACPI_NATIVE_UINT caused the negative index to go large and positive. BZ 715
7085 +ACPI_NATIVE_UINT caused the negative index to go large and positive. BZ
7086 +715
2258 7087
2259 -Fixed a possible memory leak in EvPciConfigRegionSetup where the error exit
7088 +Fixed a possible memory leak in EvPciConfigRegionSetup where the error
7089 +exit
2260 7090 path did not delete a locally allocated structure.
2261 7091
2262 7092 Updated definitions for the DMAR and SRAT tables to synchronize with the
2263 7093 current specifications. Includes disassembler support.
2264 7094
2265 7095 Fixed a problem in the mutex debug code (in utmutex.c) where an incorrect
2266 -loop termination value was used. Loop terminated on iteration early, missing
7096 +loop termination value was used. Loop terminated on iteration early,
7097 +missing
2267 7098 one mutex. Linn Crosetto
2268 7099
2269 7100 Example Code and Data Size: These are the sizes for the OS-independent
2270 7101 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2271 -debug version of the code includes the debug output trace mechanism and has a
7102 +debug version of the code includes the debug output trace mechanism and
7103 +has a
2272 7104 much larger code and data size.
2273 7105
2274 7106 Previous Release:
2275 7107 Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total
2276 7108 Debug Version: 153.3K Code, 48.3K Data, 201.6K Total
2277 7109 Current Release:
2278 7110 Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total
2279 7111 Debug Version: 153.0K Code, 48.2K Data, 201.2K Total
2280 7112
2281 7113 2) iASL Compiler/Disassembler and Tools:
2282 7114
2283 7115 Disassembler: Implemented support for EisaId() within _CID objects. Now
2284 7116 disassemble integer _CID objects back to EisaId invocations, including
2285 7117 multiple integers within _CID packages. Includes single-step support for
2286 7118 debugger also.
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2287 7119
2288 7120 Disassembler: Added support for DMAR and SRAT table definition changes.
2289 7121
2290 7122 ----------------------------------------
2291 7123 14 May 2008. Summary of changes for version 20080514:
2292 7124
2293 7125 1) ACPI CA Core Subsystem:
2294 7126
2295 7127 Fixed a problem where GPEs were enabled too early during the ACPICA
2296 7128 initialization. This could lead to "handler not installed" errors on some
2297 -machines. Moved GPE enable until after _REG/_STA/_INI methods are run. This
2298 -ensures that all operation regions and devices throughout the namespace have
7129 +machines. Moved GPE enable until after _REG/_STA/_INI methods are run.
7130 +This
7131 +ensures that all operation regions and devices throughout the namespace
7132 +have
2299 7133 been initialized before GPEs are enabled. Alexey Starikovskiy, BZ 9916.
2300 7134
2301 7135 Implemented a change to the enter sleep code. Moved execution of the _GTS
2302 -method to just before setting sleep enable bit. The execution was moved from
7136 +method to just before setting sleep enable bit. The execution was moved
7137 +from
2303 7138 AcpiEnterSleepStatePrep to AcpiEnterSleepState. _GTS is now executed
2304 7139 immediately before the SLP_EN bit is set, as per the ACPI specification.
2305 7140 Luming Yu, BZ 1653.
2306 7141
2307 -Implemented a fix to disable unknown GPEs (2nd version). Now always disable
7142 +Implemented a fix to disable unknown GPEs (2nd version). Now always
7143 +disable
2308 7144 the GPE, even if ACPICA thinks that that it is already disabled. It is
2309 -possible that the AML or some other code has enabled the GPE unbeknownst to
7145 +possible that the AML or some other code has enabled the GPE unbeknownst
7146 +to
2310 7147 the ACPICA code.
2311 7148
2312 -Fixed a problem with the Field operator where zero-length fields would return
2313 -an AE_AML_NO_OPERAND exception during table load. Fix enables zero-length ASL
7149 +Fixed a problem with the Field operator where zero-length fields would
7150 +return
7151 +an AE_AML_NO_OPERAND exception during table load. Fix enables zero-length
7152 +ASL
2314 7153 field declarations in Field(), BankField(), and IndexField(). BZ 10606.
2315 7154
2316 -Implemented a fix for the Load operator, now load the table at the namespace
2317 -root. This reverts a change introduced in version 20071019. The table is now
7155 +Implemented a fix for the Load operator, now load the table at the
7156 +namespace
7157 +root. This reverts a change introduced in version 20071019. The table is
7158 +now
2318 7159 loaded at the namespace root even though this goes against the ACPI
2319 -specification. This provides compatibility with other ACPI implementations.
2320 -The ACPI specification will be updated to reflect this in ACPI 4.0. Lin Ming.
7160 +specification. This provides compatibility with other ACPI
7161 +implementations.
7162 +The ACPI specification will be updated to reflect this in ACPI 4.0. Lin
7163 +Ming.
2321 7164
2322 -Fixed a problem where ACPICA would not Load() tables with unusual signatures.
7165 +Fixed a problem where ACPICA would not Load() tables with unusual
7166 +signatures.
2323 7167 Now ignore ACPI table signature for Load() operator. Only "SSDT" is
2324 7168 acceptable to the ACPI spec, but tables are seen with OEMx and null sigs.
2325 -Therefore, signature validation is worthless. Apparently MS ACPI accepts such
7169 +Therefore, signature validation is worthless. Apparently MS ACPI accepts
7170 +such
2326 7171 signatures, ACPICA must be compatible. BZ 10454.
2327 7172
2328 -Fixed a possible negative array index in AcpiUtValidateException. Added NULL
2329 -fields to the exception string arrays to eliminate a -1 subtraction on the
7173 +Fixed a possible negative array index in AcpiUtValidateException. Added
7174 +NULL
7175 +fields to the exception string arrays to eliminate a -1 subtraction on
7176 +the
2330 7177 SubStatus field.
2331 7178
2332 7179 Updated the debug tracking macros to reduce overall code and data size.
2333 7180 Changed ACPI_MODULE_NAME and ACPI_FUNCTION_NAME to use arrays of strings
2334 7181 instead of pointers to static strings. Jan Beulich and Bob Moore.
2335 7182
2336 7183 Implemented argument count checking in control method invocation via
2337 -AcpiEvaluateObject. Now emit an error if too few arguments, warning if too
2338 -many. This applies only to extern programmatic control method execution, not
7184 +AcpiEvaluateObject. Now emit an error if too few arguments, warning if
7185 +too
7186 +many. This applies only to extern programmatic control method execution,
7187 +not
2339 7188 method-to-method calls within the AML. Lin Ming.
2340 7189
2341 -Eliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is no
2342 -longer needed, especially with the removal of 16-bit support. It was replaced
2343 -mostly with UINT32, but also ACPI_SIZE where a type that changes 32/64 bit on
7190 +Eliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is
7191 +no
7192 +longer needed, especially with the removal of 16-bit support. It was
7193 +replaced
7194 +mostly with UINT32, but also ACPI_SIZE where a type that changes 32/64
7195 +bit
7196 +on
2344 7197 32/64-bit platforms is required.
2345 7198
2346 7199 Added the C const qualifier for appropriate string constants -- mostly
2347 7200 MODULE_NAME and printf format strings. Jan Beulich.
2348 7201
2349 7202 Example Code and Data Size: These are the sizes for the OS-independent
2350 7203 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2351 -debug version of the code includes the debug output trace mechanism and has a
7204 +debug version of the code includes the debug output trace mechanism and
7205 +has a
2352 7206 much larger code and data size.
2353 7207
2354 7208 Previous Release:
2355 7209 Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total
2356 7210 Debug Version: 159.4K Code, 64.4K Data, 223.8K Total
2357 7211 Current Release:
2358 7212 Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total
2359 7213 Debug Version: 153.3K Code, 48.3K Data, 201.6K Total
2360 7214
2361 7215 2) iASL Compiler/Disassembler and Tools:
2362 7216
2363 -Implemented ACPI table revision ID validation in the disassembler. Zero is
2364 -always invalid. For DSDTs, the ID controls the interpreter integer width. 1
7217 +Implemented ACPI table revision ID validation in the disassembler. Zero
7218 +is
7219 +always invalid. For DSDTs, the ID controls the interpreter integer width.
7220 +1
2365 7221 means 32-bit and this is unusual. 2 or greater is 64-bit.
2366 7222
2367 7223 ----------------------------------------
2368 7224 21 March 2008. Summary of changes for version 20080321:
2369 7225
2370 7226 1) ACPI CA Core Subsystem:
2371 7227
2372 7228 Implemented an additional change to the GPE support in order to suppress
2373 -spurious or stray GPEs. The AcpiEvDisableGpe function will now permanently
2374 -disable incoming GPEs that are neither enabled nor disabled -- meaning that
2375 -the GPE is unknown to the system. This should prevent future interrupt floods
7229 +spurious or stray GPEs. The AcpiEvDisableGpe function will now
7230 +permanently
7231 +disable incoming GPEs that are neither enabled nor disabled -- meaning
7232 +that
7233 +the GPE is unknown to the system. This should prevent future interrupt
7234 +floods
2376 7235 from that GPE. BZ 6217 (Zhang Rui)
2377 7236
2378 7237 Fixed a problem where NULL package elements were not returned to the
2379 7238 AcpiEvaluateObject interface correctly. The element was simply ignored
2380 -instead of returning a NULL ACPI_OBJECT package element, potentially causing
2381 -a buffer overflow and/or confusing the caller who expected a fixed number of
7239 +instead of returning a NULL ACPI_OBJECT package element, potentially
7240 +causing
7241 +a buffer overflow and/or confusing the caller who expected a fixed number
7242 +of
2382 7243 elements. BZ 10132 (Lin Ming, Bob Moore)
2383 7244
2384 -Fixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word, Dword,
2385 -Qword), Field, BankField, and IndexField operators when invoked from inside
2386 -an executing control method. In this case, these operators created namespace
7245 +Fixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word,
7246 +Dword,
7247 +Qword), Field, BankField, and IndexField operators when invoked from
7248 +inside
7249 +an executing control method. In this case, these operators created
7250 +namespace
2387 7251 nodes that were incorrectly left marked as permanent nodes instead of
2388 7252 temporary nodes. This could cause a problem if there is race condition
2389 -between an exiting control method and a running namespace walk. (Reported by
7253 +between an exiting control method and a running namespace walk. (Reported
7254 +by
2390 7255 Linn Crosetto)
2391 7256
2392 7257 Fixed a problem where the CreateField and CreateXXXField operators would
2393 -incorrectly allow duplicate names (the name of the field) with no exception
7258 +incorrectly allow duplicate names (the name of the field) with no
7259 +exception
2394 7260 generated.
2395 7261
2396 -Implemented several changes for Notify handling. Added support for new Notify
7262 +Implemented several changes for Notify handling. Added support for new
7263 +Notify
2397 7264 values (ACPI 2.0+) and improved the Notify debug output. Notify on
2398 -PowerResource objects is no longer allowed, as per the ACPI specification.
7265 +PowerResource objects is no longer allowed, as per the ACPI
7266 +specification.
2399 7267 (Bob Moore, Zhang Rui)
2400 7268
2401 -All Reference Objects returned via the AcpiEvaluateObject interface are now
2402 -marked as type "REFERENCE" instead of "ANY". The type ANY is now reserved for
2403 -NULL objects - either NULL package elements or unresolved named references.
7269 +All Reference Objects returned via the AcpiEvaluateObject interface are
7270 +now
7271 +marked as type "REFERENCE" instead of "ANY". The type ANY is now reserved
7272 +for
7273 +NULL objects - either NULL package elements or unresolved named
7274 +references.
2404 7275
2405 -Fixed a problem where an extraneous debug message was produced for package
7276 +Fixed a problem where an extraneous debug message was produced for
7277 +package
2406 7278 objects (when debugging enabled). The message "Package List length larger
2407 -than NumElements count" is now produced in the correct case, and is now an
7279 +than NumElements count" is now produced in the correct case, and is now
7280 +an
2408 7281 error message rather than a debug message. Added a debug message for the
2409 -opposite case, where NumElements is larger than the Package List (the package
7282 +opposite case, where NumElements is larger than the Package List (the
7283 +package
2410 7284 will be padded out with NULL elements as per the ACPI spec.)
2411 7285
2412 -Implemented several improvements for the output of the ASL "Debug" object to
7286 +Implemented several improvements for the output of the ASL "Debug" object
7287 +to
2413 7288 clarify and keep all data for a given object on one output line.
2414 7289
2415 -Fixed two size calculation issues with the variable-length Start Dependent
7290 +Fixed two size calculation issues with the variable-length Start
7291 +Dependent
2416 7292 resource descriptor.
2417 7293
2418 7294 Example Code and Data Size: These are the sizes for the OS-independent
2419 7295 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2420 -debug version of the code includes the debug output trace mechanism and has
7296 +debug version of the code includes the debug output trace mechanism and
7297 +has
2421 7298 a much larger code and data size.
2422 7299
2423 7300 Previous Release:
2424 7301 Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total
2425 7302 Debug Version: 158.9K Code, 64.0K Data, 222.9K Total
2426 7303 Current Release:
2427 7304 Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total
2428 7305 Debug Version: 159.4K Code, 64.4K Data, 223.8K Total
2429 7306
2430 7307 2) iASL Compiler/Disassembler and Tools:
2431 7308
2432 -Fixed a problem with the use of the Switch operator where execution of the
7309 +Fixed a problem with the use of the Switch operator where execution of
7310 +the
2433 7311 containing method by multiple concurrent threads could cause an
2434 7312 AE_ALREADY_EXISTS exception. This is caused by the fact that there is no
2435 7313 actual Switch opcode, it must be simulated with local named temporary
2436 -variables and if/else pairs. The solution chosen was to mark any method that
2437 -uses Switch as Serialized, thus preventing multiple thread entries. BZ 469.
7314 +variables and if/else pairs. The solution chosen was to mark any method
7315 +that
7316 +uses Switch as Serialized, thus preventing multiple thread entries. BZ
7317 +469.
2438 7318
2439 7319 ----------------------------------------
2440 7320 13 February 2008. Summary of changes for version 20080213:
2441 7321
2442 7322 1) ACPI CA Core Subsystem:
2443 7323
2444 -Implemented another MS compatibility design change for GPE/Notify handling.
2445 -GPEs are now cleared/enabled asynchronously to allow all pending notifies to
7324 +Implemented another MS compatibility design change for GPE/Notify
7325 +handling.
7326 +GPEs are now cleared/enabled asynchronously to allow all pending notifies
7327 +to
2446 7328 complete first. It is expected that the OSL will queue the enable request
2447 -behind all pending notify requests (may require changes to the local host OSL
7329 +behind all pending notify requests (may require changes to the local host
7330 +OSL
2448 7331 in AcpiOsExecute). Alexey Starikovskiy.
2449 7332
2450 7333 Fixed a problem where buffer and package objects passed as arguments to a
2451 -control method via the external AcpiEvaluateObject interface could cause an
7334 +control method via the external AcpiEvaluateObject interface could cause
7335 +an
2452 7336 AE_AML_INTERNAL exception depending on the order and type of operators
2453 7337 executed by the target control method.
2454 7338
2455 7339 Fixed a problem where resource descriptor size optimization could cause a
2456 -problem when a _CRS resource template is passed to a _SRS method. The _SRS
7340 +problem when a _CRS resource template is passed to a _SRS method. The
7341 +_SRS
2457 7342 resource template must use the same descriptors (with the same size) as
2458 -returned from _CRS. This change affects the following resource descriptors:
2459 -IRQ / IRQNoFlags and StartDependendentFn / StartDependentFnNoPri. (BZ 9487)
7343 +returned from _CRS. This change affects the following resource
7344 +descriptors:
7345 +IRQ / IRQNoFlags and StartDependendentFn / StartDependentFnNoPri. (BZ
7346 +9487)
2460 7347
2461 -Fixed a problem where a CopyObject to RegionField, BankField, and IndexField
2462 -objects did not perform an implicit conversion as it should. These types must
2463 -retain their initial type permanently as per the ACPI specification. However,
7348 +Fixed a problem where a CopyObject to RegionField, BankField, and
7349 +IndexField
7350 +objects did not perform an implicit conversion as it should. These types
7351 +must
7352 +retain their initial type permanently as per the ACPI specification.
7353 +However,
2464 7354 a CopyObject to all other object types should not perform an implicit
2465 7355 conversion, as per the ACPI specification. (Lin Ming, Bob Moore) BZ 388
2466 7356
2467 7357 Fixed a problem with the AcpiGetDevices interface where the mechanism to
2468 7358 match device CIDs did not examine the entire list of available CIDs, but
2469 7359 instead aborted on the first non-matching CID. Andrew Patterson.
2470 7360
2471 -Fixed a regression introduced in version 20071114. The ACPI_HIDWORD macro was
7361 +Fixed a regression introduced in version 20071114. The ACPI_HIDWORD macro
7362 +was
2472 7363 inadvertently changed to return a 16-bit value instead of a 32-bit value,
2473 7364 truncating the upper dword of a 64-bit value. This macro is only used to
2474 7365 display debug output, so no incorrect calculations were made. Also,
2475 7366 reimplemented the macro so that a 64-bit shift is not performed by
2476 7367 inefficient compilers.
2477 7368
2478 7369 Added missing va_end statements that should correspond with each va_start
2479 7370 statement.
2480 7371
2481 7372 Example Code and Data Size: These are the sizes for the OS-independent
2482 7373 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2483 -debug version of the code includes the debug output trace mechanism and has
7374 +debug version of the code includes the debug output trace mechanism and
7375 +has
2484 7376 a much larger code and data size.
2485 7377
2486 7378 Previous Release:
2487 7379 Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total
2488 7380 Debug Version: 159.0K Code, 63.8K Data, 222.8K Total
2489 7381 Current Release:
2490 7382 Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total
2491 7383 Debug Version: 158.9K Code, 64.0K Data, 222.9K Total
2492 7384
2493 7385 2) iASL Compiler/Disassembler and Tools:
2494 7386
2495 7387 Implemented full disassembler support for the following new ACPI tables:
2496 7388 BERT, EINJ, and ERST. Implemented partial disassembler support for the
2497 7389 complicated HEST table. These tables support the Windows Hardware Error
2498 7390 Architecture (WHEA).
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2499 7391
2500 7392 ----------------------------------------
2501 7393 23 January 2008. Summary of changes for version 20080123:
2502 7394
2503 7395 1) ACPI CA Core Subsystem:
2504 7396
2505 7397 Added the 2008 copyright to all module headers and signons. This affects
2506 7398 virtually every file in the ACPICA core subsystem, the iASL compiler, and
2507 7399 the tools/utilities.
2508 7400
2509 -Fixed a problem with the SizeOf operator when used with Package and Buffer
2510 -objects. These objects have deferred execution for some arguments, and the
2511 -execution is now completed before the SizeOf is executed. This problem caused
2512 -unexpected AE_PACKAGE_LIMIT errors on some systems (Lin Ming, Bob Moore) BZ
7401 +Fixed a problem with the SizeOf operator when used with Package and
7402 +Buffer
7403 +objects. These objects have deferred execution for some arguments, and
7404 +the
7405 +execution is now completed before the SizeOf is executed. This problem
7406 +caused
7407 +unexpected AE_PACKAGE_LIMIT errors on some systems (Lin Ming, Bob Moore)
7408 +BZ
2513 7409 9558
2514 7410
2515 -Implemented an enhancement to the interpreter "slack mode". In the absence of
2516 -an explicit return or an implicitly returned object from the last executed
2517 -opcode, a control method will now implicitly return an integer of value 0 for
7411 +Implemented an enhancement to the interpreter "slack mode". In the
7412 +absence
7413 +of
7414 +an explicit return or an implicitly returned object from the last
7415 +executed
7416 +opcode, a control method will now implicitly return an integer of value 0
7417 +for
2518 7418 Microsoft compatibility. (Lin Ming) BZ 392
2519 7419
2520 -Fixed a problem with the Load operator where an exception was not returned in
7420 +Fixed a problem with the Load operator where an exception was not
7421 +returned
7422 +in
2521 7423 the case where the table is already loaded. (Lin Ming) BZ 463
2522 7424
2523 -Implemented support for the use of DDBHandles as an Indexed Reference, as per
7425 +Implemented support for the use of DDBHandles as an Indexed Reference, as
7426 +per
2524 7427 the ACPI spec. (Lin Ming) BZ 486
2525 7428
2526 -Implemented support for UserTerm (Method invocation) for the Unload operator
7429 +Implemented support for UserTerm (Method invocation) for the Unload
7430 +operator
2527 7431 as per the ACPI spec. (Lin Ming) BZ 580
2528 7432
2529 -Fixed a problem with the LoadTable operator where the OemId and OemTableId
2530 -input strings could cause unexpected failures if they were shorter than the
7433 +Fixed a problem with the LoadTable operator where the OemId and
7434 +OemTableId
7435 +input strings could cause unexpected failures if they were shorter than
7436 +the
2531 7437 maximum lengths allowed. (Lin Ming, Bob Moore) BZ 576
2532 7438
2533 -Implemented support for UserTerm (Method invocation) for the Unload operator
7439 +Implemented support for UserTerm (Method invocation) for the Unload
7440 +operator
2534 7441 as per the ACPI spec. (Lin Ming) BZ 580
2535 7442
2536 -Implemented header file support for new ACPI tables - BERT, ERST, EINJ, HEST,
7443 +Implemented header file support for new ACPI tables - BERT, ERST, EINJ,
7444 +HEST,
2537 7445 IBFT, UEFI, WDAT. Disassembler support is forthcoming.
2538 7446
2539 7447 Example Code and Data Size: These are the sizes for the OS-independent
2540 7448 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2541 -debug version of the code includes the debug output trace mechanism and has
7449 +debug version of the code includes the debug output trace mechanism and
7450 +has
2542 7451 a much larger code and data size.
2543 7452
2544 7453 Previous Release:
2545 7454 Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total
2546 7455 Debug Version: 158.6K Code, 63.8K Data, 222.4K Total
2547 7456 Current Release:
2548 7457 Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total
2549 7458 Debug Version: 159.0K Code, 63.8K Data, 222.8K Total
2550 7459
2551 7460 2) iASL Compiler/Disassembler and Tools:
2552 7461
2553 -Implemented support in the disassembler for checksum validation on incoming
2554 -binary DSDTs and SSDTs. If incorrect, a message is displayed within the table
7462 +Implemented support in the disassembler for checksum validation on
7463 +incoming
7464 +binary DSDTs and SSDTs. If incorrect, a message is displayed within the
7465 +table
2555 7466 header dump at the start of the disassembly.
2556 7467
2557 -Implemented additional debugging information in the namespace listing file
2558 -created during compilation. In addition to the namespace hierarchy, the full
7468 +Implemented additional debugging information in the namespace listing
7469 +file
7470 +created during compilation. In addition to the namespace hierarchy, the
7471 +full
2559 7472 pathname to each namespace object is displayed.
2560 7473
2561 -Fixed a problem with the disassembler where invalid ACPI tables could cause
7474 +Fixed a problem with the disassembler where invalid ACPI tables could
7475 +cause
2562 7476 faults or infinite loops.
2563 7477
2564 7478 Fixed an unexpected parse error when using the optional "parameter types"
2565 7479 list in a control method declaration. (Lin Ming) BZ 397
2566 7480
2567 -Fixed a problem where two External declarations with the same name did not
7481 +Fixed a problem where two External declarations with the same name did
7482 +not
2568 7483 cause an error (Lin Ming) BZ 509
2569 7484
2570 7485 Implemented support for full TermArgs (adding Argx, Localx and method
2571 -invocation) for the ParameterData parameter to the LoadTable operator. (Lin
7486 +invocation) for the ParameterData parameter to the LoadTable operator.
7487 +(Lin
2572 7488 Ming) BZ 583,587
2573 7489
2574 7490 ----------------------------------------
2575 7491 19 December 2007. Summary of changes for version 20071219:
2576 7492
2577 7493 1) ACPI CA Core Subsystem:
2578 7494
2579 7495 Implemented full support for deferred execution for the TermArg string
2580 7496 arguments for DataTableRegion. This enables forward references and full
2581 -operand resolution for the three string arguments. Similar to OperationRegion
7497 +operand resolution for the three string arguments. Similar to
7498 +OperationRegion
2582 7499 deferred argument execution.) Lin Ming. BZ 430
2583 7500
2584 -Implemented full argument resolution support for the BankValue argument to
2585 -BankField. Previously, only constants were supported, now any TermArg may be
7501 +Implemented full argument resolution support for the BankValue argument
7502 +to
7503 +BankField. Previously, only constants were supported, now any TermArg may
7504 +be
2586 7505 used. Lin Ming BZ 387, 393
2587 7506
2588 7507 Fixed a problem with AcpiGetDevices where the search of a branch of the
2589 7508 device tree could be terminated prematurely. In accordance with the ACPI
2590 -specification, the search down the current branch is terminated if a device
2591 -is both not present and not functional (instead of just not present.) Yakui
7509 +specification, the search down the current branch is terminated if a
7510 +device
7511 +is both not present and not functional (instead of just not present.)
7512 +Yakui
2592 7513 Zhao.
2593 7514
2594 -Fixed a problem where "unknown" GPEs could be allowed to fire repeatedly if
2595 -the underlying AML code changed the GPE enable registers. Now, any unknown
2596 -incoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately disabled
7515 +Fixed a problem where "unknown" GPEs could be allowed to fire repeatedly
7516 +if
7517 +the underlying AML code changed the GPE enable registers. Now, any
7518 +unknown
7519 +incoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately
7520 +disabled
2597 7521 instead of simply ignored. Rui Zhang.
2598 7522
2599 -Fixed a problem with Index Fields where the Index register was incorrectly
7523 +Fixed a problem with Index Fields where the Index register was
7524 +incorrectly
2600 7525 limited to a maximum of 32 bits. Now any size may be used.
2601 7526
2602 -Fixed a couple memory leaks associated with "implicit return" objects when
7527 +Fixed a couple memory leaks associated with "implicit return" objects
7528 +when
2603 7529 the AML Interpreter slack mode is enabled. Lin Ming BZ 349
2604 7530
2605 7531 Example Code and Data Size: These are the sizes for the OS-independent
2606 7532 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2607 -debug version of the code includes the debug output trace mechanism and has
7533 +debug version of the code includes the debug output trace mechanism and
7534 +has
2608 7535 a much larger code and data size.
2609 7536
2610 7537 Previous Release:
2611 7538 Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total
2612 7539 Debug Version: 157.9K Code, 63.6K Data, 221.5K Total
2613 7540 Current Release:
2614 7541 Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total
2615 7542 Debug Version: 158.6K Code, 63.8K Data, 222.4K Total
2616 7543
2617 7544 ----------------------------------------
2618 7545 14 November 2007. Summary of changes for version 20071114:
2619 7546
2620 7547 1) ACPI CA Core Subsystem:
2621 7548
2622 7549 Implemented event counters for each of the Fixed Events, the ACPI SCI
2623 7550 (interrupt) itself, and control methods executed. Named
2624 -AcpiFixedEventCount[], AcpiSciCount, and AcpiMethodCount respectively. These
7551 +AcpiFixedEventCount[], AcpiSciCount, and AcpiMethodCount respectively.
7552 +These
2625 7553 should be useful for debugging and statistics.
2626 7554
2627 7555 Implemented a new external interface, AcpiGetStatistics, to retrieve the
2628 7556 contents of the various event counters. Returns the current values for
2629 7557 AcpiSciCount, AcpiGpeCount, the AcpiFixedEventCount array, and
2630 -AcpiMethodCount. The interface can be expanded in the future if new counters
2631 -are added. Device drivers should use this interface rather than access the
7558 +AcpiMethodCount. The interface can be expanded in the future if new
7559 +counters
7560 +are added. Device drivers should use this interface rather than access
7561 +the
2632 7562 counters directly.
2633 7563
2634 -Fixed a problem with the FromBCD and ToBCD operators. With some compilers,
2635 -the ShortDivide function worked incorrectly, causing problems with the BCD
7564 +Fixed a problem with the FromBCD and ToBCD operators. With some
7565 +compilers,
7566 +the ShortDivide function worked incorrectly, causing problems with the
7567 +BCD
2636 7568 functions with large input values. A truncation from 64-bit to 32-bit
2637 7569 inadvertently occurred. Internal BZ 435. Lin Ming
2638 7570
2639 -Fixed a problem with Index references passed as method arguments. References
2640 -passed as arguments to control methods were dereferenced immediately (before
2641 -control was passed to the called method). The references are now correctly
7571 +Fixed a problem with Index references passed as method arguments.
7572 +References
7573 +passed as arguments to control methods were dereferenced immediately
7574 +(before
7575 +control was passed to the called method). The references are now
7576 +correctly
2642 7577 passed directly to the called method. BZ 5389. Lin Ming
2643 7578
2644 -Fixed a problem with CopyObject used in conjunction with the Index operator.
2645 -The reference was incorrectly dereferenced before the copy. The reference is
7579 +Fixed a problem with CopyObject used in conjunction with the Index
7580 +operator.
7581 +The reference was incorrectly dereferenced before the copy. The reference
7582 +is
2646 7583 now correctly copied. BZ 5391. Lin Ming
2647 7584
2648 -Fixed a problem with Control Method references within Package objects. These
7585 +Fixed a problem with Control Method references within Package objects.
7586 +These
2649 7587 references are now correctly generated. This completes the package
2650 7588 construction overhaul that began in version 20071019.
2651 7589
2652 7590 Example Code and Data Size: These are the sizes for the OS-independent
2653 7591 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2654 -debug version of the code includes the debug output trace mechanism and has
7592 +debug version of the code includes the debug output trace mechanism and
7593 +has
2655 7594 a much larger code and data size.
2656 7595
2657 7596 Previous Release:
2658 7597 Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total
2659 7598 Debug Version: 157.2K Code, 63.4K Data, 220.6K Total
2660 7599 Current Release:
2661 7600 Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total
2662 7601 Debug Version: 157.9K Code, 63.6K Data, 221.5K Total
2663 7602
2664 7603
2665 7604 2) iASL Compiler/Disassembler and Tools:
2666 7605
2667 7606 The AcpiExec utility now installs handlers for all of the predefined
2668 7607 Operation Region types. New types supported are: PCI_Config, CMOS, and
2669 7608 PCIBARTarget.
2670 7609
2671 -Fixed a problem with the 64-bit version of AcpiExec where the extended (64-
7610 +Fixed a problem with the 64-bit version of AcpiExec where the extended
7611 +(64-
2672 7612 bit) address fields for the DSDT and FACS within the FADT were not being
2673 -used, causing truncation of the upper 32-bits of these addresses. Lin Ming
7613 +used, causing truncation of the upper 32-bits of these addresses. Lin
7614 +Ming
2674 7615 and Bob Moore
2675 7616
2676 7617 ----------------------------------------
2677 7618 19 October 2007. Summary of changes for version 20071019:
2678 7619
2679 7620 1) ACPI CA Core Subsystem:
2680 7621
2681 7622 Fixed a problem with the Alias operator when the target of the alias is a
2682 -named ASL operator that opens a new scope -- Scope, Device, PowerResource,
7623 +named ASL operator that opens a new scope -- Scope, Device,
7624 +PowerResource,
2683 7625 Processor, and ThermalZone. In these cases, any children of the original
2684 -operator could not be accessed via the alias, potentially causing unexpected
7626 +operator could not be accessed via the alias, potentially causing
7627 +unexpected
2685 7628 AE_NOT_FOUND exceptions. (BZ 9067)
2686 7629
2687 7630 Fixed a problem with the Package operator where all named references were
2688 -created as object references and left otherwise unresolved. According to the
2689 -ACPI specification, a Package can only contain Data Objects or references to
7631 +created as object references and left otherwise unresolved. According to
7632 +the
7633 +ACPI specification, a Package can only contain Data Objects or references
7634 +to
2690 7635 control methods. The implication is that named references to Data Objects
2691 7636 (Integer, Buffer, String, Package, BufferField, Field) should be resolved
2692 7637 immediately upon package creation. This is the approach taken with this
2693 7638 change. References to all other named objects (Methods, Devices, Scopes,
2694 7639 etc.) are all now properly created as reference objects. (BZ 5328)
2695 7640
2696 7641 Reverted a change to Notify handling that was introduced in version
2697 7642 20070508. This version changed the Notify handling from asynchronous to
2698 -fully synchronous (Device driver Notify handling with respect to the Notify
7643 +fully synchronous (Device driver Notify handling with respect to the
7644 +Notify
2699 7645 ASL operator). It was found that this change caused more problems than it
2700 7646 solved and was removed by most users.
2701 7647
2702 -Fixed a problem with the Increment and Decrement operators where the type of
7648 +Fixed a problem with the Increment and Decrement operators where the type
7649 +of
2703 7650 the target object could be unexpectedly and incorrectly changed. (BZ 353)
2704 7651 Lin Ming.
2705 7652
2706 7653 Fixed a problem with the Load and LoadTable operators where the table
2707 7654 location within the namespace was ignored. Instead, the table was always
2708 7655 loaded into the root or current scope. Lin Ming.
2709 7656
2710 7657 Fixed a problem with the Load operator when loading a table from a buffer
2711 7658 object. The input buffer was prematurely zeroed and/or deleted. (BZ 577)
2712 7659
2713 -Fixed a problem with the Debug object where a store of a DdbHandle reference
7660 +Fixed a problem with the Debug object where a store of a DdbHandle
7661 +reference
2714 7662 object to the Debug object could cause a fault.
2715 7663
2716 -Added a table checksum verification for the Load operator, in the case where
7664 +Added a table checksum verification for the Load operator, in the case
7665 +where
2717 7666 the load is from a buffer. (BZ 578).
2718 7667
2719 -Implemented additional parameter validation for the LoadTable operator. The
2720 -length of the input strings SignatureString, OemIdString, and OemTableId are
7668 +Implemented additional parameter validation for the LoadTable operator.
7669 +The
7670 +length of the input strings SignatureString, OemIdString, and OemTableId
7671 +are
2721 7672 now checked for maximum lengths. (BZ 582) Lin Ming.
2722 7673
2723 7674 Example Code and Data Size: These are the sizes for the OS-independent
2724 7675 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2725 -debug version of the code includes the debug output trace mechanism and has
7676 +debug version of the code includes the debug output trace mechanism and
7677 +has
2726 7678 a much larger code and data size.
2727 7679
2728 7680 Previous Release:
2729 7681 Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total
2730 7682 Debug Version: 156.7K Code, 63.2K Data, 219.9K Total
2731 7683 Current Release:
2732 7684 Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total
2733 7685 Debug Version: 157.2K Code, 63.4K Data, 220.6K Total
2734 7686
2735 7687
2736 7688 2) iASL Compiler/Disassembler:
2737 7689
|
↓ open down ↓ |
2 lines elided |
↑ open up ↑ |
2738 7690 Fixed a problem where if a single file was specified and the file did not
2739 7691 exist, no error message was emitted. (Introduced with wildcard support in
2740 7692 version 20070917.)
2741 7693
2742 7694 ----------------------------------------
2743 7695 19 September 2007. Summary of changes for version 20070919:
2744 7696
2745 7697 1) ACPI CA Core Subsystem:
2746 7698
2747 7699 Designed and implemented new external interfaces to install and remove
2748 -handlers for ACPI table-related events. Current events that are defined are
7700 +handlers for ACPI table-related events. Current events that are defined
7701 +are
2749 7702 LOAD and UNLOAD. These interfaces allow the host to track ACPI tables as
2750 7703 they are dynamically loaded and unloaded. See AcpiInstallTableHandler and
2751 7704 AcpiRemoveTableHandler. (Lin Ming and Bob Moore)
2752 7705
2753 7706 Fixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag
2754 7707 (acpi_serialized option on Linux) could cause some systems to hang during
2755 7708 initialization. (Bob Moore) BZ 8171
2756 7709
2757 7710 Fixed a problem where objects of certain types (Device, ThermalZone,
2758 7711 Processor, PowerResource) can be not found if they are declared and
2759 7712 referenced from within the same control method (Lin Ming) BZ 341
2760 7713
2761 7714 Example Code and Data Size: These are the sizes for the OS-independent
2762 7715 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2763 -debug version of the code includes the debug output trace mechanism and has
7716 +debug version of the code includes the debug output trace mechanism and
7717 +has
2764 7718 a much larger code and data size.
2765 7719
2766 7720 Previous Release:
2767 7721 Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total
2768 7722 Debug Version: 156.3K Code, 63.1K Data, 219.4K Total
2769 7723 Current Release:
2770 7724 Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total
2771 7725 Debug Version: 156.7K Code, 63.2K Data, 219.9K Total
2772 7726
2773 7727
2774 7728 2) iASL Compiler/Disassembler:
2775 7729
2776 -Implemented support to allow multiple files to be compiled/disassembled in a
2777 -single invocation. This includes command line wildcard support for both the
7730 +Implemented support to allow multiple files to be compiled/disassembled
7731 +in
7732 +a
7733 +single invocation. This includes command line wildcard support for both
7734 +the
2778 7735 Windows and Unix versions of the compiler. This feature simplifies the
2779 -disassembly and compilation of multiple ACPI tables in a single directory.
7736 +disassembly and compilation of multiple ACPI tables in a single
7737 +directory.
2780 7738
2781 7739 ----------------------------------------
2782 7740 08 May 2007. Summary of changes for version 20070508:
2783 7741
2784 7742 1) ACPI CA Core Subsystem:
2785 7743
2786 -Implemented a Microsoft compatibility design change for the handling of the
7744 +Implemented a Microsoft compatibility design change for the handling of
7745 +the
2787 7746 Notify AML operator. Previously, notify handlers were dispatched and
2788 7747 executed completely asynchronously in a deferred thread. The new design
2789 -still executes the notify handlers in a different thread, but the original
2790 -thread that executed the Notify() now waits at a synchronization point for
2791 -the notify handler to complete. Some machines depend on a synchronous Notify
7748 +still executes the notify handlers in a different thread, but the
7749 +original
7750 +thread that executed the Notify() now waits at a synchronization point
7751 +for
7752 +the notify handler to complete. Some machines depend on a synchronous
7753 +Notify
2792 7754 operator in order to operate correctly.
2793 7755
2794 7756 Implemented support to allow Package objects to be passed as method
2795 7757 arguments to the external AcpiEvaluateObject interface. Previously, this
2796 7758 would return the AE_NOT_IMPLEMENTED exception. This feature had not been
2797 7759 implemented since there were no reserved control methods that required it
2798 7760 until recently.
2799 7761
2800 -Fixed a problem with the internal FADT conversion where ACPI 1.0 FADTs that
7762 +Fixed a problem with the internal FADT conversion where ACPI 1.0 FADTs
7763 +that
2801 7764 contained invalid non-zero values in reserved fields could cause later
2802 -failures because these fields have meaning in later revisions of the FADT.
2803 -For incoming ACPI 1.0 FADTs, these fields are now always zeroed. (The fields
7765 +failures because these fields have meaning in later revisions of the
7766 +FADT.
7767 +For incoming ACPI 1.0 FADTs, these fields are now always zeroed. (The
7768 +fields
2804 7769 are: Preferred_PM_Profile, PSTATE_CNT, CST_CNT, and IAPC_BOOT_FLAGS.)
2805 7770
2806 -Fixed a problem where the Global Lock handle was not properly updated if a
2807 -thread that acquired the Global Lock via executing AML code then attempted
2808 -to acquire the lock via the AcpiAcquireGlobalLock interface. Reported by Joe
7771 +Fixed a problem where the Global Lock handle was not properly updated if
7772 +a
7773 +thread that acquired the Global Lock via executing AML code then
7774 +attempted
7775 +to acquire the lock via the AcpiAcquireGlobalLock interface. Reported by
7776 +Joe
2809 7777 Liu.
2810 7778
2811 7779 Fixed a problem in AcpiEvDeleteGpeXrupt where the global interrupt list
2812 7780 could be corrupted if the interrupt being removed was at the head of the
2813 7781 list. Reported by Linn Crosetto.
2814 7782
2815 7783 Example Code and Data Size: These are the sizes for the OS-independent
2816 7784 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2817 -debug version of the code includes the debug output trace mechanism and has
7785 +debug version of the code includes the debug output trace mechanism and
7786 +has
2818 7787 a much larger code and data size.
2819 7788
2820 7789 Previous Release:
2821 7790 Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total
2822 7791 Debug Version: 155.9K Code, 63.1K Data, 219.0K Total
2823 7792 Current Release:
2824 7793 Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total
2825 7794 Debug Version: 156.3K Code, 63.1K Data, 219.4K Total
2826 7795
2827 7796 ----------------------------------------
2828 7797 20 March 2007. Summary of changes for version 20070320:
2829 7798
2830 7799 1) ACPI CA Core Subsystem:
2831 7800
2832 7801 Implemented a change to the order of interpretation and evaluation of AML
2833 7802 operand objects within the AML interpreter. The interpreter now evaluates
2834 7803 operands in the order that they appear in the AML stream (and the
2835 -corresponding ASL code), instead of in the reverse order (after the entire
2836 -operand list has been parsed). The previous behavior caused several subtle
7804 +corresponding ASL code), instead of in the reverse order (after the
7805 +entire
7806 +operand list has been parsed). The previous behavior caused several
7807 +subtle
2837 7808 incompatibilities with the Microsoft AML interpreter as well as being
2838 7809 somewhat non-intuitive. BZ 7871, local BZ 263. Valery Podrezov.
2839 7810
2840 -Implemented a change to the ACPI Global Lock support. All interfaces to the
7811 +Implemented a change to the ACPI Global Lock support. All interfaces to
7812 +the
2841 7813 global lock now allow the same thread to acquire the lock multiple times.
2842 -This affects the AcpiAcquireGlobalLock external interface to the global lock
7814 +This affects the AcpiAcquireGlobalLock external interface to the global
7815 +lock
2843 7816 as well as the internal use of the global lock to support AML fields -- a
2844 -control method that is holding the global lock can now simultaneously access
2845 -AML fields that require global lock protection. Previously, in both cases,
2846 -this would have resulted in an AE_ALREADY_ACQUIRED exception. The change to
7817 +control method that is holding the global lock can now simultaneously
7818 +access
7819 +AML fields that require global lock protection. Previously, in both
7820 +cases,
7821 +this would have resulted in an AE_ALREADY_ACQUIRED exception. The change
7822 +to
2847 7823 AcpiAcquireGlobalLock is of special interest to drivers for the Embedded
2848 -Controller. There is no change to the behavior of the AML Acquire operator,
7824 +Controller. There is no change to the behavior of the AML Acquire
7825 +operator,
2849 7826 as this can already be used to acquire a mutex multiple times by the same
2850 7827 thread. BZ 8066. With assistance from Alexey Starikovskiy.
2851 7828
2852 7829 Fixed a problem where invalid objects could be referenced in the AML
2853 -Interpreter after error conditions. During operand evaluation, ensure that
7830 +Interpreter after error conditions. During operand evaluation, ensure
7831 +that
2854 7832 the internal "Return Object" field is cleared on error and only valid
2855 -pointers are stored there. Caused occasional access to deleted objects that
7833 +pointers are stored there. Caused occasional access to deleted objects
7834 +that
2856 7835 resulted in "large reference count" warning messages. Valery Podrezov.
2857 7836
2858 -Fixed a problem where an AE_STACK_OVERFLOW internal exception could occur on
7837 +Fixed a problem where an AE_STACK_OVERFLOW internal exception could occur
7838 +on
2859 7839 deeply nested control method invocations. BZ 7873, local BZ 487. Valery
2860 7840 Podrezov.
2861 7841
2862 7842 Fixed an internal problem with the handling of result objects on the
2863 7843 interpreter result stack. BZ 7872. Valery Podrezov.
2864 7844
2865 -Removed obsolete code that handled the case where AML_NAME_OP is the target
7845 +Removed obsolete code that handled the case where AML_NAME_OP is the
7846 +target
2866 7847 of a reference (Reference.Opcode). This code was no longer necessary. BZ
2867 7848 7874. Valery Podrezov.
2868 7849
2869 -Removed obsolete ACPI_NO_INTEGER64_SUPPORT from two header files. This was a
7850 +Removed obsolete ACPI_NO_INTEGER64_SUPPORT from two header files. This
7851 +was
7852 +a
2870 7853 remnant from the previously discontinued 16-bit support.
2871 7854
2872 7855 Example Code and Data Size: These are the sizes for the OS-independent
2873 7856 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2874 -debug version of the code includes the debug output trace mechanism and has
7857 +debug version of the code includes the debug output trace mechanism and
7858 +has
2875 7859 a much larger code and data size.
2876 7860
2877 7861 Previous Release:
2878 7862 Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total
2879 7863 Debug Version: 155.8K Code, 63.3K Data, 219.1K Total
2880 7864 Current Release:
2881 7865 Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total
2882 7866 Debug Version: 155.9K Code, 63.1K Data, 219.0K Total
2883 7867
2884 7868 ----------------------------------------
2885 7869 26 January 2007. Summary of changes for version 20070126:
2886 7870
2887 7871 1) ACPI CA Core Subsystem:
2888 7872
2889 7873 Added the 2007 copyright to all module headers and signons. This affects
2890 7874 virtually every file in the ACPICA core subsystem, the iASL compiler, and
2891 7875 the utilities.
2892 7876
2893 7877 Implemented a fix for an incorrect parameter passed to AcpiTbDeleteTable
2894 -during a table load. A bad pointer was passed in the case where the DSDT is
7878 +during a table load. A bad pointer was passed in the case where the DSDT
7879 +is
2895 7880 overridden, causing a fault in this case.
2896 7881
2897 7882 Example Code and Data Size: These are the sizes for the OS-independent
2898 7883 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2899 -debug version of the code includes the debug output trace mechanism and has
7884 +debug version of the code includes the debug output trace mechanism and
7885 +has
2900 7886 a much larger code and data size.
2901 7887
2902 7888 Previous Release:
2903 7889 Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total
2904 7890 Debug Version: 155.8K Code, 63.3K Data, 219.1K Total
2905 7891 Current Release:
2906 7892 Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total
2907 7893 Debug Version: 155.8K Code, 63.3K Data, 219.1K Total
2908 7894
2909 7895 ----------------------------------------
2910 7896 15 December 2006. Summary of changes for version 20061215:
2911 7897
2912 7898 1) ACPI CA Core Subsystem:
2913 7899
2914 -Support for 16-bit ACPICA has been completely removed since it is no longer
7900 +Support for 16-bit ACPICA has been completely removed since it is no
7901 +longer
2915 7902 necessary and it clutters the code. All 16-bit macros, types, and
2916 -conditional compiles have been removed, cleaning up and simplifying the code
7903 +conditional compiles have been removed, cleaning up and simplifying the
7904 +code
2917 7905 across the entire subsystem. DOS support is no longer needed since the
2918 7906 bootable Linux firmware kit is now available.
2919 7907
2920 7908 The handler for the Global Lock is now removed during AcpiTerminate to
2921 7909 enable a clean subsystem restart, via the implementation of the
2922 7910 AcpiEvRemoveGlobalLockHandler function. (With assistance from Joel Bretz,
2923 7911 HP)
2924 7912
2925 -Implemented enhancements to the multithreading support within the debugger
2926 -to enable improved multithreading debugging and evaluation of the subsystem.
7913 +Implemented enhancements to the multithreading support within the
7914 +debugger
7915 +to enable improved multithreading debugging and evaluation of the
7916 +subsystem.
2927 7917 (Valery Podrezov)
2928 7918
2929 -Debugger: Enhanced the Statistics/Memory command to emit the total (maximum)
2930 -memory used during the execution, as well as the maximum memory consumed by
7919 +Debugger: Enhanced the Statistics/Memory command to emit the total
7920 +(maximum)
7921 +memory used during the execution, as well as the maximum memory consumed
7922 +by
2931 7923 each of the various object types. (Valery Podrezov)
2932 7924
2933 7925 Example Code and Data Size: These are the sizes for the OS-independent
2934 7926 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2935 -debug version of the code includes the debug output trace mechanism and has
7927 +debug version of the code includes the debug output trace mechanism and
7928 +has
2936 7929 a much larger code and data size.
2937 7930
2938 7931 Previous Release:
2939 7932 Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total
2940 7933 Debug Version: 155.2K Code, 63.1K Data, 218.3K Total
2941 7934 Current Release:
2942 7935 Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total
2943 7936 Debug Version: 155.8K Code, 63.3K Data, 219.1K Total
2944 7937
2945 7938
2946 7939 2) iASL Compiler/Disassembler and Tools:
2947 7940
2948 7941 AcpiExec: Implemented a new option (-m) to display full memory use
2949 7942 statistics upon subsystem/program termination. (Valery Podrezov)
2950 7943
2951 7944 ----------------------------------------
2952 7945 09 November 2006. Summary of changes for version 20061109:
2953 7946
2954 7947 1) ACPI CA Core Subsystem:
2955 7948
2956 -Optimized the Load ASL operator in the case where the source operand is an
7949 +Optimized the Load ASL operator in the case where the source operand is
7950 +an
2957 7951 operation region. Simply map the operation region memory, instead of
2958 7952 performing a bytewise read. (Region must be of type SystemMemory, see
2959 7953 below.)
2960 7954
2961 7955 Fixed the Load ASL operator for the case where the source operand is a
2962 -region field. A buffer object is also allowed as the source operand. BZ 480
7956 +region field. A buffer object is also allowed as the source operand. BZ
7957 +480
2963 7958
2964 -Fixed a problem where the Load ASL operator allowed the source operand to be
7959 +Fixed a problem where the Load ASL operator allowed the source operand to
7960 +be
2965 7961 an operation region of any type. It is now restricted to regions of type
2966 7962 SystemMemory, as per the ACPI specification. BZ 481
2967 7963
2968 7964 Additional cleanup and optimizations for the new Table Manager code.
2969 7965
2970 -AcpiEnable will now fail if all of the required ACPI tables are not loaded
7966 +AcpiEnable will now fail if all of the required ACPI tables are not
7967 +loaded
2971 7968 (FADT, FACS, DSDT). BZ 477
2972 7969
2973 -Added #pragma pack(8/4) to acobject.h to ensure that the structures in this
7970 +Added #pragma pack(8/4) to acobject.h to ensure that the structures in
7971 +this
2974 7972 header are always compiled as aligned. The ACPI_OPERAND_OBJECT has been
2975 7973 manually optimized to be aligned and will not work if it is byte-packed.
2976 7974
2977 7975 Example Code and Data Size: These are the sizes for the OS-independent
2978 7976 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
2979 -debug version of the code includes the debug output trace mechanism and has
7977 +debug version of the code includes the debug output trace mechanism and
7978 +has
2980 7979 a much larger code and data size.
2981 7980
2982 7981 Previous Release:
2983 7982 Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total
2984 7983 Debug Version: 155.4K Code, 63.1K Data, 218.5K Total
2985 7984 Current Release:
2986 7985 Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total
2987 7986 Debug Version: 155.2K Code, 63.1K Data, 218.3K Total
2988 7987
2989 7988
2990 7989 2) iASL Compiler/Disassembler and Tools:
2991 7990
2992 7991 Fixed a problem where the presence of the _OSI predefined control method
2993 7992 within complex expressions could cause an internal compiler error.
2994 7993
2995 7994 AcpiExec: Implemented full region support for multiple address spaces.
2996 7995 SpaceId is now part of the REGION object. BZ 429
2997 7996
2998 7997 ----------------------------------------
2999 7998 11 October 2006. Summary of changes for version 20061011:
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3000 7999
3001 8000 1) ACPI CA Core Subsystem:
3002 8001
3003 8002 Completed an AML interpreter performance enhancement for control method
3004 8003 execution. Previously a 2-pass parse/execution, control methods are now
3005 8004 completely parsed and executed in a single pass. This improves overall
3006 8005 interpreter performance by ~25%, reduces code size, and reduces CPU stack
3007 8006 use. (Valery Podrezov + interpreter changes in version 20051202 that
3008 8007 eliminated namespace loading during the pass one parse.)
3009 8008
3010 -Implemented _CID support for PCI Root Bridge detection. If the _HID does not
3011 -match the predefined PCI Root Bridge IDs, the _CID list (if present) is now
8009 +Implemented _CID support for PCI Root Bridge detection. If the _HID does
8010 +not
8011 +match the predefined PCI Root Bridge IDs, the _CID list (if present) is
8012 +now
3012 8013 obtained and also checked for an ID match.
3013 8014
3014 -Implemented additional support for the PCI _ADR execution: upsearch until a
8015 +Implemented additional support for the PCI _ADR execution: upsearch until
8016 +a
3015 8017 device scope is found before executing _ADR. This allows PCI_Config
3016 -operation regions to be declared locally within control methods underneath
8018 +operation regions to be declared locally within control methods
8019 +underneath
3017 8020 PCI device objects.
3018 8021
3019 8022 Fixed a problem with a possible race condition between threads executing
3020 8023 AcpiWalkNamespace and the AML interpreter. This condition was removed by
3021 -modifying AcpiWalkNamespace to (by default) ignore all temporary namespace
8024 +modifying AcpiWalkNamespace to (by default) ignore all temporary
8025 +namespace
3022 8026 entries created during any concurrent control method execution. An
3023 8027 additional namespace race condition is known to exist between
3024 8028 AcpiWalkNamespace and the Load/Unload ASL operators and is still under
3025 8029 investigation.
3026 8030
3027 8031 Restructured the AML ParseLoop function, breaking it into several
3028 -subfunctions in order to reduce CPU stack use and improve maintainability.
8032 +subfunctions in order to reduce CPU stack use and improve
8033 +maintainability.
3029 8034 (Mikhail Kouzmich)
3030 8035
3031 -AcpiGetHandle: Fix for parameter validation to detect invalid combinations
8036 +AcpiGetHandle: Fix for parameter validation to detect invalid
8037 +combinations
3032 8038 of prefix handle and pathname. BZ 478
3033 8039
3034 8040 Example Code and Data Size: These are the sizes for the OS-independent
3035 8041 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3036 -debug version of the code includes the debug output trace mechanism and has
8042 +debug version of the code includes the debug output trace mechanism and
8043 +has
3037 8044 a much larger code and data size.
3038 8045
3039 8046 Previous Release:
3040 8047 Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total
3041 8048 Debug Version: 154.6K Code, 63.0K Data, 217.6K Total
3042 8049 Current Release:
3043 8050 Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total
3044 8051 Debug Version: 155.4K Code, 63.1K Data, 218.5K Total
3045 8052
3046 8053 2) iASL Compiler/Disassembler and Tools:
3047 8054
3048 -Ported the -g option (get local ACPI tables) to the new ACPICA Table Manager
8055 +Ported the -g option (get local ACPI tables) to the new ACPICA Table
8056 +Manager
3049 8057 to restore original behavior.
3050 8058
3051 8059 ----------------------------------------
3052 8060 27 September 2006. Summary of changes for version 20060927:
3053 8061
3054 8062 1) ACPI CA Core Subsystem:
3055 8063
3056 8064 Removed the "Flags" parameter from AcpiGetRegister and AcpiSetRegister.
3057 8065 These functions now use a spinlock for mutual exclusion and the interrupt
3058 8066 level indication flag is not needed.
3059 8067
3060 8068 Fixed a problem with the Global Lock where the lock could appear to be
3061 8069 obtained before it is actually obtained. The global lock semaphore was
3062 -inadvertently created with one unit instead of zero units. (BZ 464) Fiodor
8070 +inadvertently created with one unit instead of zero units. (BZ 464)
8071 +Fiodor
3063 8072 Suietov.
3064 8073
3065 -Fixed a possible memory leak and fault in AcpiExResolveObjectToValue during
8074 +Fixed a possible memory leak and fault in AcpiExResolveObjectToValue
8075 +during
3066 8076 a read from a buffer or region field. (BZ 458) Fiodor Suietov.
3067 8077
3068 8078 Example Code and Data Size: These are the sizes for the OS-independent
3069 8079 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3070 -debug version of the code includes the debug output trace mechanism and has
8080 +debug version of the code includes the debug output trace mechanism and
8081 +has
3071 8082 a much larger code and data size.
3072 8083
3073 8084 Previous Release:
3074 8085 Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total
3075 8086 Debug Version: 154.7K Code, 63.0K Data, 217.7K Total
3076 8087 Current Release:
3077 8088 Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total
3078 8089 Debug Version: 154.6K Code, 63.0K Data, 217.6K Total
3079 8090
3080 8091
3081 8092 2) iASL Compiler/Disassembler and Tools:
3082 8093
3083 -Fixed a compilation problem with the pre-defined Resource Descriptor field
3084 -names where an "object does not exist" error could be incorrectly generated
8094 +Fixed a compilation problem with the pre-defined Resource Descriptor
8095 +field
8096 +names where an "object does not exist" error could be incorrectly
8097 +generated
3085 8098 if the parent ResourceTemplate pathname places the template within a
3086 8099 different namespace scope than the current scope. (BZ 7212)
3087 8100
3088 -Fixed a problem where the compiler could hang after syntax errors detected
8101 +Fixed a problem where the compiler could hang after syntax errors
8102 +detected
3089 8103 in an ElseIf construct. (BZ 453)
3090 8104
3091 8105 Fixed a problem with the AmlFilename parameter to the DefinitionBlock()
3092 -operator. An incorrect output filename was produced when this parameter was
8106 +operator. An incorrect output filename was produced when this parameter
8107 +was
3093 8108 a null string (""). Now, the original input filename is used as the AML
3094 8109 output filename, with an ".aml" extension.
3095 8110
3096 -Implemented a generic batch command mode for the AcpiExec utility (execute
8111 +Implemented a generic batch command mode for the AcpiExec utility
8112 +(execute
3097 8113 any AML debugger command) (Valery Podrezov).
3098 8114
3099 8115 ----------------------------------------
3100 8116 12 September 2006. Summary of changes for version 20060912:
3101 8117
3102 8118 1) ACPI CA Core Subsystem:
3103 8119
3104 8120 Enhanced the implementation of the "serialized mode" of the interpreter
3105 8121 (enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is
3106 -specified, instead of creating a serialization semaphore per control method,
8122 +specified, instead of creating a serialization semaphore per control
8123 +method,
3107 8124 the interpreter lock is simply no longer released before a blocking
3108 8125 operation during control method execution. This effectively makes the AML
3109 8126 Interpreter single-threaded. The overhead of a semaphore per-method is
3110 8127 eliminated.
3111 8128
3112 -Fixed a regression where an error was no longer emitted if a control method
8129 +Fixed a regression where an error was no longer emitted if a control
8130 +method
3113 8131 attempts to create 2 objects of the same name. This once again returns
3114 -AE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism that
8132 +AE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism
8133 +that
3115 8134 will dynamically serialize the control method to possible prevent future
3116 8135 errors. (BZ 440)
3117 8136
3118 8137 Integrated a fix for a problem with PCI Express HID detection in the PCI
3119 8138 Config Space setup procedure. (BZ 7145)
3120 8139
3121 8140 Moved all FADT-related functions to a new file, tbfadt.c. Eliminated the
3122 8141 AcpiHwInitialize function - the FADT registers are now validated when the
3123 8142 table is loaded.
3124 8143
3125 -Added two new warnings during FADT verification - 1) if the FADT is larger
3126 -than the largest known FADT version, and 2) if there is a mismatch between a
3127 -32-bit block address and the 64-bit X counterpart (when both are non-zero.)
8144 +Added two new warnings during FADT verification - 1) if the FADT is
8145 +larger
8146 +than the largest known FADT version, and 2) if there is a mismatch
8147 +between
8148 +a
8149 +32-bit block address and the 64-bit X counterpart (when both are non-
8150 +zero.)
3128 8151
3129 8152 Example Code and Data Size: These are the sizes for the OS-independent
3130 8153 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3131 -debug version of the code includes the debug output trace mechanism and has
8154 +debug version of the code includes the debug output trace mechanism and
8155 +has
3132 8156 a much larger code and data size.
3133 8157
3134 8158 Previous Release:
3135 8159 Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total
3136 8160 Debug Version: 154.9K Code, 62.6K Data, 217.5K Total
3137 8161 Current Release:
3138 8162 Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total
3139 8163 Debug Version: 154.7K Code, 63.0K Data, 217.7K Total
3140 8164
3141 8165
3142 8166 2) iASL Compiler/Disassembler and Tools:
3143 8167
3144 -Fixed a problem with the implementation of the Switch() operator where the
3145 -temporary variable was declared too close to the actual Switch, instead of
8168 +Fixed a problem with the implementation of the Switch() operator where
8169 +the
8170 +temporary variable was declared too close to the actual Switch, instead
8171 +of
3146 8172 at method level. This could cause a problem if the Switch() operator is
3147 8173 within a while loop, causing an error on the second iteration. (BZ 460)
3148 8174
3149 8175 Disassembler - fix for error emitted for unknown type for target of scope
3150 8176 operator. Now, ignore it and continue.
3151 8177
3152 8178 Disassembly of an FADT now verifies the input FADT and reports any errors
3153 8179 found. Fix for proper disassembly of full-sized (ACPI 2.0) FADTs.
3154 8180
3155 -Disassembly of raw data buffers with byte initialization data now prefixes
8181 +Disassembly of raw data buffers with byte initialization data now
8182 +prefixes
3156 8183 each output line with the current buffer offset.
3157 8184
3158 8185 Disassembly of ASF! table now includes all variable-length data fields at
3159 8186 the end of some of the subtables.
3160 8187
3161 8188 The disassembler now emits a comment if a buffer appears to be a
3162 -ResourceTemplate, but cannot be disassembled as such because the EndTag does
8189 +ResourceTemplate, but cannot be disassembled as such because the EndTag
8190 +does
3163 8191 not appear at the very end of the buffer.
3164 8192
3165 -AcpiExec - Added the "-t" command line option to enable the serialized mode
8193 +AcpiExec - Added the "-t" command line option to enable the serialized
8194 +mode
3166 8195 of the AML interpreter.
3167 8196
3168 8197 ----------------------------------------
3169 8198 31 August 2006. Summary of changes for version 20060831:
3170 8199
3171 8200 1) ACPI CA Core Subsystem:
3172 8201
3173 8202 Miscellaneous fixes for the Table Manager:
3174 8203 - Correctly initialize internal common FADT for all 64-bit "X" fields
3175 8204 - Fixed a couple table mapping issues during table load
3176 8205 - Fixed a couple alignment issues for IA64
3177 8206 - Initialize input array to zero in AcpiInitializeTables
3178 8207 - Additional parameter validation for AcpiGetTable, AcpiGetTableHeader,
3179 8208 AcpiGetTableByIndex
3180 8209
3181 -Change for GPE support: when a "wake" GPE is received, all wake GPEs are now
8210 +Change for GPE support: when a "wake" GPE is received, all wake GPEs are
8211 +now
3182 8212 immediately disabled to prevent the waking GPE from firing again and to
3183 8213 prevent other wake GPEs from interrupting the wake process.
3184 8214
3185 -Added the AcpiGpeCount global that tracks the number of processed GPEs, to
8215 +Added the AcpiGpeCount global that tracks the number of processed GPEs,
8216 +to
3186 8217 be used for debugging systems with a large number of ACPI interrupts.
3187 8218
3188 8219 Implemented support for the "DMAR" ACPI table (DMA Redirection Table) in
3189 8220 both the ACPICA headers and the disassembler.
3190 8221
3191 8222 Example Code and Data Size: These are the sizes for the OS-independent
3192 8223 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3193 -debug version of the code includes the debug output trace mechanism and has
8224 +debug version of the code includes the debug output trace mechanism and
8225 +has
3194 8226 a much larger code and data size.
3195 8227
3196 8228 Previous Release:
3197 8229 Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total
3198 8230 Debug Version: 154.6K Code, 62.3K Data, 216.9K Total
3199 8231 Current Release:
3200 8232 Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total
3201 8233 Debug Version: 154.9K Code, 62.6K Data, 217.5K Total
3202 8234
3203 8235
3204 8236 2) iASL Compiler/Disassembler and Tools:
3205 8237
3206 8238 Disassembler support for the DMAR ACPI table.
3207 8239
3208 8240 ----------------------------------------
3209 8241 23 August 2006. Summary of changes for version 20060823:
3210 8242
3211 8243 1) ACPI CA Core Subsystem:
3212 8244
3213 8245 The Table Manager component has been completely redesigned and
3214 -reimplemented. The new design is much simpler, and reduces the overall code
3215 -and data size of the kernel-resident ACPICA by approximately 5%. Also, it is
8246 +reimplemented. The new design is much simpler, and reduces the overall
8247 +code
8248 +and data size of the kernel-resident ACPICA by approximately 5%. Also, it
8249 +is
3216 8250 now possible to obtain the ACPI tables very early during kernel
3217 8251 initialization, even before dynamic memory management is initialized.
3218 8252 (Alexey Starikovskiy, Fiodor Suietov, Bob Moore)
3219 8253
3220 8254 Obsolete ACPICA interfaces:
3221 8255
3222 -- AcpiGetFirmwareTable: Use AcpiGetTable instead (works at early kernel init
8256 +- AcpiGetFirmwareTable: Use AcpiGetTable instead (works at early kernel
8257 +init
3223 8258 time).
3224 8259 - AcpiLoadTable: Not needed.
3225 8260 - AcpiUnloadTable: Not needed.
3226 8261
3227 8262 New ACPICA interfaces:
3228 8263
3229 -- AcpiInitializeTables: Must be called before the table manager can be used.
8264 +- AcpiInitializeTables: Must be called before the table manager can be
8265 +used.
3230 8266 - AcpiReallocateRootTable: Used to transfer the root table to dynamically
3231 8267 allocated memory after it becomes available.
3232 -- AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI tables
8268 +- AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI
8269 +tables
3233 8270 in the RSDT/XSDT.
3234 8271
3235 8272 Other ACPICA changes:
3236 8273
3237 -- AcpiGetTableHeader returns the actual mapped table header, not a copy. Use
8274 +- AcpiGetTableHeader returns the actual mapped table header, not a copy.
8275 +Use
3238 8276 AcpiOsUnmapMemory to free this mapping.
3239 8277 - AcpiGetTable returns the actual mapped table. The mapping is managed
3240 8278 internally and must not be deleted by the caller. Use of this interface
3241 8279 causes no additional dynamic memory allocation.
3242 -- AcpiFindRootPointer: Support for physical addressing has been eliminated,
8280 +- AcpiFindRootPointer: Support for physical addressing has been
8281 +eliminated,
3243 8282 it appeared to be unused.
3244 8283 - The interface to AcpiOsMapMemory has changed to be consistent with the
3245 8284 other allocation interfaces.
3246 -- The interface to AcpiOsGetRootPointer has changed to eliminate unnecessary
8285 +- The interface to AcpiOsGetRootPointer has changed to eliminate
8286 +unnecessary
3247 8287 parameters.
3248 -- ACPI_PHYSICAL_ADDRESS is now 32 bits on 32-bit platforms, 64 bits on 64-
8288 +- ACPI_PHYSICAL_ADDRESS is now 32 bits on 32-bit platforms, 64 bits on
8289 +64-
3249 8290 bit platforms. Was previously 64 bits on all platforms.
3250 -- The interface to the ACPI Global Lock acquire/release macros have changed
8291 +- The interface to the ACPI Global Lock acquire/release macros have
8292 +changed
3251 8293 slightly since ACPICA no longer keeps a local copy of the FACS with a
3252 8294 constructed pointer to the actual global lock.
3253 8295
3254 8296 Porting to the new table manager:
3255 8297
3256 8298 - AcpiInitializeTables: Must be called once, and can be called anytime
3257 -during the OS initialization process. It allows the host to specify an area
8299 +during the OS initialization process. It allows the host to specify an
8300 +area
3258 8301 of memory to be used to store the internal version of the RSDT/XSDT (root
3259 -table). This allows the host to access ACPI tables before memory management
8302 +table). This allows the host to access ACPI tables before memory
8303 +management
3260 8304 is initialized and running.
3261 -- AcpiReallocateRootTable: Can be called after memory management is running
8305 +- AcpiReallocateRootTable: Can be called after memory management is
8306 +running
3262 8307 to copy the root table to a dynamically allocated array, freeing up the
3263 8308 scratch memory specified in the call to AcpiInitializeTables.
3264 8309 - AcpiSubsystemInitialize: This existing interface is independent of the
3265 -Table Manager, and does not have to be called before the Table Manager can
8310 +Table Manager, and does not have to be called before the Table Manager
8311 +can
3266 8312 be used, it only must be called before the rest of ACPICA can be used.
3267 -- ACPI Tables: Some changes have been made to the names and structure of the
3268 -actbl.h and actbl1.h header files and may require changes to existing code.
3269 -For example, bitfields have been completely removed because of their lack of
8313 +- ACPI Tables: Some changes have been made to the names and structure of
8314 +the
8315 +actbl.h and actbl1.h header files and may require changes to existing
8316 +code.
8317 +For example, bitfields have been completely removed because of their lack
8318 +of
3270 8319 portability across C compilers.
3271 8320 - Update interfaces to the Global Lock acquire/release macros if local
3272 8321 versions are used. (see acwin.h)
3273 8322
3274 8323 Obsolete files: tbconvrt.c, tbget.c, tbgetall.c, tbrsdt.c
3275 8324
3276 8325 New files: tbfind.c
3277 8326
3278 8327 Example Code and Data Size: These are the sizes for the OS-independent
3279 8328 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3280 -debug version of the code includes the debug output trace mechanism and has
8329 +debug version of the code includes the debug output trace mechanism and
8330 +has
3281 8331 a much larger code and data size.
3282 8332
3283 8333 Previous Release:
3284 8334 Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total
3285 8335 Debug Version: 161.0K Code, 65.1K Data, 226.1K Total
3286 8336 Current Release:
3287 8337 Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total
3288 8338 Debug Version: 154.6K Code, 62.3K Data, 216.9K Total
3289 8339
3290 8340
3291 8341 2) iASL Compiler/Disassembler and Tools:
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3292 8342
3293 8343 No changes for this release.
3294 8344
3295 8345 ----------------------------------------
3296 8346 21 July 2006. Summary of changes for version 20060721:
3297 8347
3298 8348 1) ACPI CA Core Subsystem:
3299 8349
3300 8350 The full source code for the ASL test suite used to validate the iASL
3301 8351 compiler and the ACPICA core subsystem is being released with the ACPICA
3302 -source for the first time. The source is contained in a separate package and
3303 -consists of over 1100 files that exercise all ASL/AML operators. The package
3304 -should appear on the Intel/ACPI web site shortly. (Valery Podrezov, Fiodor
8352 +source for the first time. The source is contained in a separate package
8353 +and
8354 +consists of over 1100 files that exercise all ASL/AML operators. The
8355 +package
8356 +should appear on the Intel/ACPI web site shortly. (Valery Podrezov,
8357 +Fiodor
3305 8358 Suietov)
3306 8359
3307 8360 Completed a new design and implementation for support of the ACPI Global
3308 8361 Lock. On the OS side, the global lock is now treated as a standard AML
3309 8362 mutex. Previously, multiple OS threads could "acquire" the global lock
3310 -simultaneously. However, this could cause the BIOS to be starved out of the
8363 +simultaneously. However, this could cause the BIOS to be starved out of
8364 +the
3311 8365 lock - especially in cases such as the Embedded Controller driver where
3312 8366 there is a tight coupling between the OS and the BIOS.
3313 8367
3314 8368 Implemented an optimization for the ACPI Global Lock interrupt mechanism.
3315 8369 The Global Lock interrupt handler no longer queues the execution of a
3316 -separate thread to signal the global lock semaphore. Instead, the semaphore
8370 +separate thread to signal the global lock semaphore. Instead, the
8371 +semaphore
3317 8372 is signaled directly from the interrupt handler.
3318 8373
3319 8374 Implemented support within the AML interpreter for package objects that
3320 -contain a larger AML length (package list length) than the package element
8375 +contain a larger AML length (package list length) than the package
8376 +element
3321 8377 count. In this case, the length of the package is truncated to match the
3322 -package element count. Some BIOS code apparently modifies the package length
3323 -on the fly, and this change supports this behavior. Provides compatibility
8378 +package element count. Some BIOS code apparently modifies the package
8379 +length
8380 +on the fly, and this change supports this behavior. Provides
8381 +compatibility
3324 8382 with the MS AML interpreter. (With assistance from Fiodor Suietov)
3325 8383
3326 -Implemented a temporary fix for the BankValue parameter of a Bank Field to
8384 +Implemented a temporary fix for the BankValue parameter of a Bank Field
8385 +to
3327 8386 support all constant values, now including the Zero and One opcodes.
3328 -Evaluation of this parameter must eventually be converted to a full TermArg
3329 -evaluation. A not-implemented error is now returned (temporarily) for non-
8387 +Evaluation of this parameter must eventually be converted to a full
8388 +TermArg
8389 +evaluation. A not-implemented error is now returned (temporarily) for
8390 +non-
3330 8391 constant values for this parameter.
3331 8392
3332 8393 Fixed problem reports (Fiodor Suietov) integrated:
3333 -- Fix for premature object deletion after CopyObject on Operation Region (BZ
8394 +- Fix for premature object deletion after CopyObject on Operation Region
8395 +(BZ
3334 8396 350)
3335 8397
3336 8398 Example Code and Data Size: These are the sizes for the OS-independent
3337 8399 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3338 -debug version of the code includes the debug output trace mechanism and has
8400 +debug version of the code includes the debug output trace mechanism and
8401 +has
3339 8402 a much larger code and data size.
3340 8403
3341 8404 Previous Release:
3342 8405 Non-Debug Version: 80.7K Code, 18.0K Data, 98.7K Total
3343 8406 Debug Version: 160.9K Code, 65.1K Data, 226.0K Total
3344 8407 Current Release:
3345 8408 Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total
3346 8409 Debug Version: 161.0K Code, 65.1K Data, 226.1K Total
3347 8410
3348 8411
3349 8412 2) iASL Compiler/Disassembler and Tools:
3350 8413
3351 8414 No changes for this release.
3352 8415
3353 8416 ----------------------------------------
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3354 8417 07 July 2006. Summary of changes for version 20060707:
3355 8418
3356 8419 1) ACPI CA Core Subsystem:
3357 8420
3358 8421 Added the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers
3359 8422 that do not allow the initialization of address pointers within packed
3360 8423 structures - even though the hardware itself may support misaligned
3361 8424 transfers. Some of the debug data structures are packed by default to
3362 8425 minimize size.
3363 8426
3364 -Added an error message for the case where AcpiOsGetThreadId() returns zero.
8427 +Added an error message for the case where AcpiOsGetThreadId() returns
8428 +zero.
3365 8429 A non-zero value is required by the core ACPICA code to ensure the proper
3366 8430 operation of AML mutexes and recursive control methods.
3367 8431
3368 8432 The DSDT is now the only ACPI table that determines whether the AML
3369 -interpreter is in 32-bit or 64-bit mode. Not really a functional change, but
3370 -the hooks for per-table 32/64 switching have been removed from the code. A
8433 +interpreter is in 32-bit or 64-bit mode. Not really a functional change,
8434 +but
8435 +the hooks for per-table 32/64 switching have been removed from the code.
8436 +A
3371 8437 clarification to the ACPI specification is forthcoming in ACPI 3.0B.
3372 8438
3373 8439 Fixed a possible leak of an OwnerID in the error path of
3374 8440 AcpiTbInitTableDescriptor (tbinstal.c), and migrated all table OwnerID
3375 -deletion to a single place in AcpiTbUninstallTable to correct possible leaks
8441 +deletion to a single place in AcpiTbUninstallTable to correct possible
8442 +leaks
3376 8443 when using the AcpiTbDeleteTablesByType interface (with assistance from
3377 8444 Lance Ortiz.)
3378 8445
3379 8446 Fixed a problem with Serialized control methods where the semaphore
3380 8447 associated with the method could be over-signaled after multiple method
3381 8448 invocations.
3382 8449
3383 -Fixed two issues with the locking of the internal namespace data structure.
8450 +Fixed two issues with the locking of the internal namespace data
8451 +structure.
3384 8452 Both the Unload() operator and AcpiUnloadTable interface now lock the
3385 8453 namespace during the namespace deletion associated with the table unload
3386 8454 (with assistance from Linn Crosetto.)
3387 8455
3388 8456 Fixed problem reports (Valery Podrezov) integrated:
3389 8457 - Eliminate unnecessary memory allocation for CreateXxxxField (BZ 5426)
3390 8458
3391 8459 Fixed problem reports (Fiodor Suietov) integrated:
3392 8460 - Incomplete cleanup branches in AcpiTbGetTableRsdt (BZ 369)
3393 8461 - On Address Space handler deletion, needless deactivation call (BZ 374)
3394 -- AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ 375)
3395 -- Possible memory leak, Notify sub-objects of Processor, Power, ThermalZone
8462 +- AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ
8463 +375)
8464 +- Possible memory leak, Notify sub-objects of Processor, Power,
8465 +ThermalZone
3396 8466 (BZ 376)
3397 8467 - AcpiRemoveAddressSpaceHandler: validate Handler parameter (BZ 378)
3398 8468 - Minimum Length of RSDT should be validated (BZ 379)
3399 8469 - AcpiRemoveNotifyHandler: return AE_NOT_EXIST if Processor Obj has no
3400 8470 Handler (BZ (380)
3401 -- AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type loaded
8471 +- AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type
8472 +loaded
3402 8473 (BZ 381)
3403 8474
3404 8475 Example Code and Data Size: These are the sizes for the OS-independent
3405 8476 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3406 -debug version of the code includes the debug output trace mechanism and has
8477 +debug version of the code includes the debug output trace mechanism and
8478 +has
3407 8479 a much larger code and data size.
3408 8480
3409 8481 Previous Release:
3410 8482 Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total
3411 8483 Debug Version: 160.8K Code, 64.8K Data, 225.6K Total
3412 8484 Current Release:
3413 8485 Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total
3414 8486 Debug Version: 161.0K Code, 65.1K Data, 226.1K Total
3415 8487
3416 8488
3417 8489 2) iASL Compiler/Disassembler and Tools:
3418 8490
3419 8491 Fixed problem reports:
3420 8492 Compiler segfault when ASL contains a long (>1024) String declaration (BZ
3421 8493 436)
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3422 8494
3423 8495 ----------------------------------------
3424 8496 23 June 2006. Summary of changes for version 20060623:
3425 8497
3426 8498 1) ACPI CA Core Subsystem:
3427 8499
3428 8500 Implemented a new ACPI_SPINLOCK type for the OSL lock interfaces. This
3429 8501 allows the type to be customized to the host OS for improved efficiency
3430 8502 (since a spinlock is usually a very small object.)
3431 8503
3432 -Implemented support for "ignored" bits in the ACPI registers. According to
8504 +Implemented support for "ignored" bits in the ACPI registers. According
8505 +to
3433 8506 the ACPI specification, these bits should be preserved when writing the
3434 -registers via a read/modify/write cycle. There are 3 bits preserved in this
8507 +registers via a read/modify/write cycle. There are 3 bits preserved in
8508 +this
3435 8509 manner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9], and PM1_STATUS[11].
3436 8510
3437 -Implemented the initial deployment of new OSL mutex interfaces. Since some
8511 +Implemented the initial deployment of new OSL mutex interfaces. Since
8512 +some
3438 8513 host operating systems have separate mutex and semaphore objects, this
3439 8514 feature was requested. The base code now uses mutexes (and the new mutex
3440 8515 interfaces) wherever a binary semaphore was used previously. However, for
3441 -the current release, the mutex interfaces are defined as macros to map them
3442 -to the existing semaphore interfaces. Therefore, no OSL changes are required
8516 +the current release, the mutex interfaces are defined as macros to map
8517 +them
8518 +to the existing semaphore interfaces. Therefore, no OSL changes are
8519 +required
3443 8520 at this time. (See acpiosxf.h)
3444 8521
3445 8522 Fixed several problems with the support for the control method SyncLevel
3446 -parameter. The SyncLevel now works according to the ACPI specification and
3447 -in concert with the Mutex SyncLevel parameter, since the current SyncLevel
3448 -is a property of the executing thread. Mutual exclusion for control methods
8523 +parameter. The SyncLevel now works according to the ACPI specification
8524 +and
8525 +in concert with the Mutex SyncLevel parameter, since the current
8526 +SyncLevel
8527 +is a property of the executing thread. Mutual exclusion for control
8528 +methods
3449 8529 is now implemented with a mutex instead of a semaphore.
3450 8530
3451 8531 Fixed three instances of the use of the C shift operator in the bitfield
3452 -support code (exfldio.c) to avoid the use of a shift value larger than the
3453 -target data width. The behavior of C compilers is undefined in this case and
3454 -can cause unpredictable results, and therefore the case must be detected and
8532 +support code (exfldio.c) to avoid the use of a shift value larger than
8533 +the
8534 +target data width. The behavior of C compilers is undefined in this case
8535 +and
8536 +can cause unpredictable results, and therefore the case must be detected
8537 +and
3455 8538 avoided. (Fiodor Suietov)
3456 8539
3457 8540 Added an info message whenever an SSDT or OEM table is loaded dynamically
3458 -via the Load() or LoadTable() ASL operators. This should improve debugging
3459 -capability since it will show exactly what tables have been loaded (beyond
8541 +via the Load() or LoadTable() ASL operators. This should improve
8542 +debugging
8543 +capability since it will show exactly what tables have been loaded
8544 +(beyond
3460 8545 the tables present in the RSDT/XSDT.)
3461 8546
3462 8547 Example Code and Data Size: These are the sizes for the OS-independent
3463 8548 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3464 -debug version of the code includes the debug output trace mechanism and has
8549 +debug version of the code includes the debug output trace mechanism and
8550 +has
3465 8551 a much larger code and data size.
3466 8552
3467 8553 Previous Release:
3468 8554 Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total
3469 8555 Debug Version: 160.2K Code, 64.7K Data, 224.9K Total
3470 8556 Current Release:
3471 8557 Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total
3472 8558 Debug Version: 160.8K Code, 64.8K Data, 225.6K Total
3473 8559
3474 8560
3475 8561 2) iASL Compiler/Disassembler and Tools:
3476 8562
3477 8563 No changes for this release.
3478 8564
3479 8565 ----------------------------------------
3480 8566 08 June 2006. Summary of changes for version 20060608:
3481 8567
3482 8568 1) ACPI CA Core Subsystem:
3483 8569
3484 -Converted the locking mutex used for the ACPI hardware to a spinlock. This
8570 +Converted the locking mutex used for the ACPI hardware to a spinlock.
8571 +This
3485 8572 change should eliminate all problems caused by attempting to acquire a
3486 8573 semaphore at interrupt level, and it means that all ACPICA external
3487 -interfaces that directly access the ACPI hardware can be safely called from
3488 -interrupt level. OSL code that implements the semaphore interfaces should be
8574 +interfaces that directly access the ACPI hardware can be safely called
8575 +from
8576 +interrupt level. OSL code that implements the semaphore interfaces should
8577 +be
3489 8578 able to eliminate any workarounds for being called at interrupt level.
3490 8579
3491 8580 Fixed a regression introduced in 20060526 where the ACPI device
3492 -initialization could be prematurely aborted with an AE_NOT_FOUND if a device
8581 +initialization could be prematurely aborted with an AE_NOT_FOUND if a
8582 +device
3493 8583 did not have an optional _INI method.
3494 8584
3495 8585 Fixed an IndexField issue where a write to the Data Register should be
3496 -limited in size to the AccessSize (width) of the IndexField itself. (BZ 433,
8586 +limited in size to the AccessSize (width) of the IndexField itself. (BZ
8587 +433,
3497 8588 Fiodor Suietov)
3498 8589
3499 8590 Fixed problem reports (Valery Podrezov) integrated:
3500 8591 - Allow store of ThermalZone objects to Debug object (BZ 5369/5370)
3501 8592
3502 8593 Fixed problem reports (Fiodor Suietov) integrated:
3503 8594 - AcpiGetTableHeader doesn't handle multiple instances correctly (BZ 364)
3504 8595
3505 8596 Removed four global mutexes that were obsolete and were no longer being
3506 8597 used.
3507 8598
3508 8599 Example Code and Data Size: These are the sizes for the OS-independent
3509 8600 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3510 -debug version of the code includes the debug output trace mechanism and has
8601 +debug version of the code includes the debug output trace mechanism and
8602 +has
3511 8603 a much larger code and data size.
3512 8604
3513 8605 Previous Release:
3514 8606 Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total
3515 8607 Debug Version: 160.3K Code, 64.9K Data, 225.2K Total
3516 8608 Current Release:
3517 8609 Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total
3518 8610 Debug Version: 160.2K Code, 64.7K Data, 224.9K Total
3519 8611
3520 8612
3521 8613 2) iASL Compiler/Disassembler and Tools:
3522 8614
3523 8615 Fixed a fault when using -g option (get tables from registry) on Windows
3524 8616 machines.
3525 8617
3526 8618 Fixed problem reports integrated:
3527 8619 - Generate error if CreateField NumBits parameter is zero. (BZ 405)
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3528 8620 - Fault if Offset/Length in Field unit is very large (BZ 432, Fiodor
3529 8621 Suietov)
3530 8622 - Global table revision override (-r) is ignored (BZ 413)
3531 8623
3532 8624 ----------------------------------------
3533 8625 26 May 2006. Summary of changes for version 20060526:
3534 8626
3535 8627 1) ACPI CA Core Subsystem:
3536 8628
3537 8629 Restructured, flattened, and simplified the internal interfaces for
3538 -namespace object evaluation - resulting in smaller code, less CPU stack use,
8630 +namespace object evaluation - resulting in smaller code, less CPU stack
8631 +use,
3539 8632 and fewer interfaces. (With assistance from Mikhail Kouzmich)
3540 8633
3541 -Fixed a problem with the CopyObject operator where the first parameter was
3542 -not typed correctly for the parser, interpreter, compiler, and disassembler.
8634 +Fixed a problem with the CopyObject operator where the first parameter
8635 +was
8636 +not typed correctly for the parser, interpreter, compiler, and
8637 +disassembler.
3543 8638 Caused various errors and unexpected behavior.
3544 8639
3545 8640 Fixed a problem where a ShiftLeft or ShiftRight of more than 64 bits
3546 8641 produced incorrect results with some C compilers. Since the behavior of C
3547 8642 compilers when the shift value is larger than the datatype width is
3548 -apparently not well defined, the interpreter now detects this condition and
8643 +apparently not well defined, the interpreter now detects this condition
8644 +and
3549 8645 simply returns zero as expected in all such cases. (BZ 395)
3550 8646
3551 8647 Fixed problem reports (Valery Podrezov) integrated:
3552 8648 - Update String-to-Integer conversion to match ACPI 3.0A spec (BZ 5329)
3553 8649 - Allow interpreter to handle nested method declarations (BZ 5361)
3554 8650
3555 8651 Fixed problem reports (Fiodor Suietov) integrated:
3556 -- AcpiTerminate doesn't free debug memory allocation list objects (BZ 355)
3557 -- After Core Subsystem shutdown, AcpiSubsystemStatus returns AE_OK (BZ 356)
8652 +- AcpiTerminate doesn't free debug memory allocation list objects (BZ
8653 +355)
8654 +- After Core Subsystem shutdown, AcpiSubsystemStatus returns AE_OK (BZ
8655 +356)
3558 8656 - AcpiOsUnmapMemory for RSDP can be invoked inconsistently (BZ 357)
3559 8657 - Resource Manager should return AE_TYPE for non-device objects (BZ 358)
3560 8658 - Incomplete cleanup branch in AcpiNsEvaluateRelative (BZ 359)
3561 8659 - Use AcpiOsFree instead of ACPI_FREE in AcpiRsSetSrsMethodData (BZ 360)
3562 8660 - Incomplete cleanup branch in AcpiPsParseAml (BZ 361)
3563 8661 - Incomplete cleanup branch in AcpiDsDeleteWalkState (BZ 362)
3564 -- AcpiGetTableHeader returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ 365)
8662 +- AcpiGetTableHeader returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ
8663 +365)
3565 8664 - Status of the Global Initialization Handler call not used (BZ 366)
3566 8665 - Incorrect object parameter to Global Initialization Handler (BZ 367)
3567 8666
3568 8667 Example Code and Data Size: These are the sizes for the OS-independent
3569 8668 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3570 -debug version of the code includes the debug output trace mechanism and has
8669 +debug version of the code includes the debug output trace mechanism and
8670 +has
3571 8671 a much larger code and data size.
3572 8672
3573 8673 Previous Release:
3574 8674 Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total
3575 8675 Debug Version: 160.5K Code, 65.1K Data, 225.6K Total
3576 8676 Current Release:
3577 8677 Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total
3578 8678 Debug Version: 160.3K Code, 64.9K Data, 225.2K Total
3579 8679
3580 8680
3581 8681 2) iASL Compiler/Disassembler and Tools:
3582 8682
3583 8683 Modified the parser to allow the names IO, DMA, and IRQ to be used as
3584 8684 namespace identifiers with no collision with existing resource descriptor
3585 8685 macro names. This provides compatibility with other ASL compilers and is
3586 -most useful for disassembly/recompilation of existing tables without parse
8686 +most useful for disassembly/recompilation of existing tables without
8687 +parse
3587 8688 errors. (With assistance from Thomas Renninger)
3588 8689
3589 8690 Disassembler: fixed an incorrect disassembly problem with the
3590 8691 DataTableRegion and CopyObject operators. Fixed a possible fault during
3591 8692 disassembly of some Alias operators.
3592 8693
3593 8694 ----------------------------------------
3594 8695 12 May 2006. Summary of changes for version 20060512:
3595 8696
3596 8697 1) ACPI CA Core Subsystem:
3597 8698
3598 8699 Replaced the AcpiOsQueueForExecution interface with a new interface named
3599 -AcpiOsExecute. The major difference is that the new interface does not have
3600 -a Priority parameter, this appeared to be useless and has been replaced by a
8700 +AcpiOsExecute. The major difference is that the new interface does not
8701 +have
8702 +a Priority parameter, this appeared to be useless and has been replaced
8703 +by
8704 +a
3601 8705 Type parameter. The Type tells the host what type of execution is being
3602 8706 requested, such as global lock handler, notify handler, GPE handler, etc.
3603 -This allows the host to queue and execute the request as appropriate for the
3604 -request type, possibly using different work queues and different priorities
8707 +This allows the host to queue and execute the request as appropriate for
8708 +the
8709 +request type, possibly using different work queues and different
8710 +priorities
3605 8711 for the various request types. This enables fixes for multithreading
3606 -deadlock problems such as BZ #5534, and will require changes to all existing
8712 +deadlock problems such as BZ #5534, and will require changes to all
8713 +existing
3607 8714 OS interface layers. (Alexey Starikovskiy and Bob Moore)
3608 8715
3609 -Fixed a possible memory leak associated with the support for the so-called
8716 +Fixed a possible memory leak associated with the support for the so-
8717 +called
3610 8718 "implicit return" ACPI extension. Reported by FreeBSD, BZ #6514. (Fiodor
3611 8719 Suietov)
3612 8720
3613 8721 Fixed a problem with the Load() operator where a table load from an
3614 -operation region could overwrite an internal table buffer by up to 7 bytes
3615 -and cause alignment faults on IPF systems. (With assistance from Luming Yu)
8722 +operation region could overwrite an internal table buffer by up to 7
8723 +bytes
8724 +and cause alignment faults on IPF systems. (With assistance from Luming
8725 +Yu)
3616 8726
3617 8727 Example Code and Data Size: These are the sizes for the OS-independent
3618 8728 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3619 -debug version of the code includes the debug output trace mechanism and has
8729 +debug version of the code includes the debug output trace mechanism and
8730 +has
3620 8731 a much larger code and data size.
3621 8732
3622 8733 Previous Release:
3623 8734 Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total
3624 8735 Debug Version: 160.1K Code, 65.2K Data, 225.3K Total
3625 8736 Current Release:
3626 8737 Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total
3627 8738 Debug Version: 160.5K Code, 65.1K Data, 225.6K Total
3628 8739
3629 8740
3630 8741
3631 8742 2) iASL Compiler/Disassembler and Tools:
3632 8743
3633 -Disassembler: Implemented support to cross reference the internal namespace
3634 -and automatically generate ASL External() statements for symbols not defined
8744 +Disassembler: Implemented support to cross reference the internal
8745 +namespace
8746 +and automatically generate ASL External() statements for symbols not
8747 +defined
3635 8748 within the current table being disassembled. This will simplify the
3636 -disassembly and recompilation of interdependent tables such as SSDTs since
8749 +disassembly and recompilation of interdependent tables such as SSDTs
8750 +since
3637 8751 these statements will no longer have to be added manually.
3638 8752
3639 8753 Disassembler: Implemented experimental support to automatically detect
3640 -invocations of external control methods and generate appropriate External()
3641 -statements. This is problematic because the AML cannot be correctly parsed
3642 -until the number of arguments for each control method is known. Currently,
8754 +invocations of external control methods and generate appropriate
8755 +External()
8756 +statements. This is problematic because the AML cannot be correctly
8757 +parsed
8758 +until the number of arguments for each control method is known.
8759 +Currently,
3643 8760 standalone method invocations and invocations as the source operand of a
3644 8761 Store() statement are supported.
3645 8762
3646 8763 Disassembler: Implemented support for the ASL pseudo-operators LNotEqual,
3647 8764 LLessEqual, and LGreaterEqual. Previously disassembled as LNot(LEqual()),
3648 8765 LNot(LGreater()), and LNot(LLess()), this makes the disassembled ASL code
3649 8766 more readable and likely closer to the original ASL source.
3650 8767
3651 8768 ----------------------------------------
3652 8769 21 April 2006. Summary of changes for version 20060421:
3653 8770
3654 8771 1) ACPI CA Core Subsystem:
3655 8772
3656 8773 Removed a device initialization optimization introduced in 20051216 where
3657 8774 the _STA method was not run unless an _INI was also present for the same
3658 -device. This optimization could cause problems because it could allow _INI
8775 +device. This optimization could cause problems because it could allow
8776 +_INI
3659 8777 methods to be run within a not-present device subtree. (If a not-present
3660 -device had no _INI, _STA would not be run, the not-present status would not
8778 +device had no _INI, _STA would not be run, the not-present status would
8779 +not
3661 8780 be discovered, and the children of the device would be incorrectly
3662 8781 traversed.)
3663 8782
3664 8783 Implemented a new _STA optimization where namespace subtrees that do not
3665 8784 contain _INI are identified and ignored during device initialization.
3666 8785 Selectively running _STA can significantly improve boot time on large
3667 8786 machines (with assistance from Len Brown.)
3668 8787
3669 8788 Implemented support for the device initialization case where the returned
3670 -_STA flags indicate a device not-present but functioning. In this case, _INI
8789 +_STA flags indicate a device not-present but functioning. In this case,
8790 +_INI
3671 8791 is not run, but the device children are examined for presence, as per the
3672 8792 ACPI specification.
3673 8793
3674 8794 Implemented an additional change to the IndexField support in order to
3675 8795 conform to MS behavior. The value written to the Index Register is not
3676 8796 simply a byte offset, it is a byte offset in units of the access width of
3677 8797 the parent Index Field. (Fiodor Suietov)
3678 8798
3679 8799 Defined and deployed a new OSL interface, AcpiOsValidateAddress. This
3680 8800 interface is called during the creation of all AML operation regions, and
3681 8801 allows the host OS to exert control over what addresses it will allow the
3682 8802 AML code to access. Operation Regions whose addresses are disallowed will
3683 -cause a runtime exception when they are actually accessed (will not affect
8803 +cause a runtime exception when they are actually accessed (will not
8804 +affect
3684 8805 or abort table loading.) See oswinxf or osunixxf for an example
3685 8806 implementation.
3686 8807
3687 8808 Defined and deployed a new OSL interface, AcpiOsValidateInterface. This
3688 8809 interface allows the host OS to match the various "optional"
3689 8810 interface/behavior strings for the _OSI predefined control method as
3690 8811 appropriate (with assistance from Bjorn Helgaas.) See oswinxf or osunixxf
3691 8812 for an example implementation.
3692 8813
3693 -Restructured and corrected various problems in the exception handling code
8814 +Restructured and corrected various problems in the exception handling
8815 +code
3694 8816 paths within DsCallControlMethod and DsTerminateControlMethod in dsmethod
3695 8817 (with assistance from Takayoshi Kochi.)
3696 8818
3697 -Modified the Linux source converter to ignore quoted string literals while
3698 -converting identifiers from mixed to lower case. This will correct problems
8819 +Modified the Linux source converter to ignore quoted string literals
8820 +while
8821 +converting identifiers from mixed to lower case. This will correct
8822 +problems
3699 8823 with the disassembler and other areas where such strings must not be
3700 8824 modified.
3701 8825
3702 8826 The ACPI_FUNCTION_* macros no longer require quotes around the function
3703 -name. This allows the Linux source converter to convert the names, now that
8827 +name. This allows the Linux source converter to convert the names, now
8828 +that
3704 8829 the converter ignores quoted strings.
3705 8830
3706 8831 Example Code and Data Size: These are the sizes for the OS-independent
3707 8832 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3708 -debug version of the code includes the debug output trace mechanism and has
8833 +debug version of the code includes the debug output trace mechanism and
8834 +has
3709 8835 a much larger code and data size.
3710 8836
3711 8837 Previous Release:
3712 8838
3713 8839 Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total
3714 8840 Debug Version: 158.9K Code, 64.9K Data, 223.8K Total
3715 8841 Current Release:
3716 8842 Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total
3717 8843 Debug Version: 160.1K Code, 65.2K Data, 225.3K Total
3718 8844
3719 8845
3720 8846 2) iASL Compiler/Disassembler and Tools:
3721 8847
3722 -Implemented 3 new warnings for iASL, and implemented multiple warning levels
8848 +Implemented 3 new warnings for iASL, and implemented multiple warning
8849 +levels
3723 8850 (w2 flag).
3724 8851
3725 -1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is not
8852 +1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is
8853 +not
3726 8854 WAIT_FOREVER (0xFFFF) and the code does not examine the return value to
3727 8855 check for the possible timeout, a warning is issued.
3728 8856
3729 -2) Useless operators: If an ASL operator does not specify an optional target
8857 +2) Useless operators: If an ASL operator does not specify an optional
8858 +target
3730 8859 operand and it also does not use the function return value from the
3731 -operator, a warning is issued since the operator effectively does nothing.
8860 +operator, a warning is issued since the operator effectively does
8861 +nothing.
3732 8862
3733 8863 3) Unreferenced objects: If a namespace object is created, but never
3734 -referenced, a warning is issued. This is a warning level 2 since there are
3735 -cases where this is ok, such as when a secondary table is loaded that uses
3736 -the unreferenced objects. Even so, care is taken to only flag objects that
8864 +referenced, a warning is issued. This is a warning level 2 since there
8865 +are
8866 +cases where this is ok, such as when a secondary table is loaded that
8867 +uses
8868 +the unreferenced objects. Even so, care is taken to only flag objects
8869 +that
3737 8870 don't look like they will ever be used. For example, the reserved methods
3738 8871 (starting with an underscore) are usually not referenced because it is
3739 8872 expected that the OS will invoke them.
3740 8873
3741 8874 ----------------------------------------
3742 8875 31 March 2006. Summary of changes for version 20060331:
3743 8876
3744 8877 1) ACPI CA Core Subsystem:
3745 8878
3746 8879 Implemented header file support for the following additional ACPI tables:
3747 -ASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this support,
3748 -all current and known ACPI tables are now defined in the ACPICA headers and
8880 +ASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this
8881 +support,
8882 +all current and known ACPI tables are now defined in the ACPICA headers
8883 +and
3749 8884 are available for use by device drivers and other software.
3750 8885
3751 8886 Implemented support to allow tables that contain ACPI names with invalid
3752 8887 characters to be loaded. Previously, this would cause the table load to
3753 8888 fail, but since there are several known cases of such tables on existing
3754 -machines, this change was made to enable ACPI support for them. Also, this
8889 +machines, this change was made to enable ACPI support for them. Also,
8890 +this
3755 8891 matches the behavior of the Microsoft ACPI implementation.
3756 8892
3757 -Fixed a couple regressions introduced during the memory optimization in the
8893 +Fixed a couple regressions introduced during the memory optimization in
8894 +the
3758 8895 20060317 release. The namespace node definition required additional
3759 -reorganization and an internal datatype that had been changed to 8-bit was
8896 +reorganization and an internal datatype that had been changed to 8-bit
8897 +was
3760 8898 restored to 32-bit. (Valery Podrezov)
3761 8899
3762 8900 Fixed a problem where a null pointer passed to AcpiUtDeleteGenericState
3763 8901 could be passed through to AcpiOsReleaseObject which is unexpected. Such
3764 8902 null pointers are now trapped and ignored, matching the behavior of the
3765 8903 previous implementation before the deployment of AcpiOsReleaseObject.
3766 8904 (Valery Podrezov, Fiodor Suietov)
3767 8905
3768 -Fixed a memory mapping leak during the deletion of a SystemMemory operation
8906 +Fixed a memory mapping leak during the deletion of a SystemMemory
8907 +operation
3769 8908 region where a cached memory mapping was not deleted. This became a
3770 -noticeable problem for operation regions that are defined within frequently
8909 +noticeable problem for operation regions that are defined within
8910 +frequently
3771 8911 used control methods. (Dana Meyers)
3772 8912
3773 8913 Reorganized the ACPI table header files into two main files: one for the
3774 -ACPI tables consumed by the ACPICA core, and another for the miscellaneous
3775 -ACPI tables that are consumed by the drivers and other software. The various
8914 +ACPI tables consumed by the ACPICA core, and another for the
8915 +miscellaneous
8916 +ACPI tables that are consumed by the drivers and other software. The
8917 +various
3776 8918 FADT definitions were merged into one common section and three different
3777 8919 tables (ACPI 1.0, 1.0+, and 2.0)
3778 8920
3779 8921 Example Code and Data Size: These are the sizes for the OS-independent
3780 8922 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
3781 -debug version of the code includes the debug output trace mechanism and has
8923 +debug version of the code includes the debug output trace mechanism and
8924 +has
3782 8925 a much larger code and data size.
3783 8926
3784 8927 Previous Release:
3785 8928 Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total
3786 8929 Debug Version: 158.7K Code, 64.8K Data, 223.5K Total
3787 8930 Current Release:
3788 8931 Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total
3789 8932 Debug Version: 158.9K Code, 64.9K Data, 223.8K Total
3790 8933
3791 8934
3792 8935 2) iASL Compiler/Disassembler and Tools:
3793 8936
3794 8937 Disassembler: Implemented support to decode and format all non-AML ACPI
3795 8938 tables (tables other than DSDTs and SSDTs.) This includes the new tables
3796 -added to the ACPICA headers, therefore all current and known ACPI tables are
8939 +added to the ACPICA headers, therefore all current and known ACPI tables
8940 +are
3797 8941 supported.
3798 8942
3799 8943 Disassembler: The change to allow ACPI names with invalid characters also
3800 -enables the disassembly of such tables. Invalid characters within names are
8944 +enables the disassembly of such tables. Invalid characters within names
8945 +are
3801 8946 changed to '*' to make the name printable; the iASL compiler will still
3802 8947 generate an error for such names, however, since this is an invalid ACPI
3803 8948 character.
3804 8949
3805 -Implemented an option for AcpiXtract (-a) to extract all tables found in the
8950 +Implemented an option for AcpiXtract (-a) to extract all tables found in
8951 +the
3806 8952 input file. The default invocation extracts only the DSDTs and SSDTs.
3807 8953
3808 8954 Fixed a couple of gcc generation issues for iASL and AcpiExec and added a
3809 8955 makefile for the AcpiXtract utility.
3810 8956
3811 8957 ----------------------------------------
3812 8958 17 March 2006. Summary of changes for version 20060317:
3813 8959
3814 8960 1) ACPI CA Core Subsystem:
3815 8961
3816 8962 Implemented the use of a cache object for all internal namespace nodes.
3817 8963 Since there are about 1000 static nodes in a typical system, this will
3818 -decrease memory use for cache implementations that minimize per-allocation
8964 +decrease memory use for cache implementations that minimize per-
8965 +allocation
3819 8966 overhead (such as a slab allocator.)
3820 8967
3821 -Removed the reference count mechanism for internal namespace nodes, since it
8968 +Removed the reference count mechanism for internal namespace nodes, since
8969 +it
3822 8970 was deemed unnecessary. This reduces the size of each namespace node by
3823 -about 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case,
8971 +about 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit
8972 +case,
3824 8973 and 32 bytes for the 64-bit case.
3825 8974
3826 -Optimized several internal data structures to reduce object size on 64-bit
8975 +Optimized several internal data structures to reduce object size on 64-
8976 +bit
3827 8977 platforms by packing data within the 64-bit alignment. This includes the
3828 8978 frequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static
3829 8979 instances corresponding to the namespace objects.
3830 8980
3831 -Added two new strings for the predefined _OSI method: "Windows 2001.1 SP1"
8981 +Added two new strings for the predefined _OSI method: "Windows 2001.1
8982 +SP1"
3832 8983 and "Windows 2006".
3833 8984
3834 8985 Split the allocation tracking mechanism out to a separate file, from
3835 8986 utalloc.c to uttrack.c. This mechanism appears to be only useful for
3836 8987 application-level code. Kernels may wish to not include uttrack.c in
3837 8988 distributions.
3838 8989
3839 -Removed all remnants of the obsolete ACPI_REPORT_* macros and the associated
8990 +Removed all remnants of the obsolete ACPI_REPORT_* macros and the
8991 +associated
3840 8992 code. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING
3841 8993 macros.)
3842 8994
3843 -Code and Data Size: These are the sizes for the acpica.lib produced by the
3844 -Microsoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI
3845 -driver or OSPM code. The debug version of the code includes the debug output
8995 +Code and Data Size: These are the sizes for the acpica.lib produced by
8996 +the
8997 +Microsoft Visual C++ 6.0 32-bit compiler. The values do not include any
8998 +ACPI
8999 +driver or OSPM code. The debug version of the code includes the debug
9000 +output
3846 9001 trace mechanism and has a much larger code and data size. Note that these
3847 9002 values will vary depending on the efficiency of the compiler and the
3848 9003 compiler options used during generation.
3849 9004
3850 9005 Previous Release:
3851 9006 Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total
3852 9007 Debug Version: 161.6K Code, 65.7K Data, 227.3K Total
3853 9008 Current Release:
3854 9009 Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total
3855 9010 Debug Version: 158.7K Code, 64.8K Data, 223.5K Total
3856 9011
3857 9012
3858 9013 2) iASL Compiler/Disassembler and Tools:
3859 9014
3860 -Implemented an ANSI C version of the acpixtract utility. This version will
9015 +Implemented an ANSI C version of the acpixtract utility. This version
9016 +will
3861 9017 automatically extract the DSDT and all SSDTs from the input acpidump text
3862 9018 file and dump the binary output to separate files. It can also display a
3863 9019 summary of the input file including the headers for each table found and
3864 9020 will extract any single ACPI table, with any signature. (See
3865 9021 source/tools/acpixtract)
3866 9022
3867 9023 ----------------------------------------
3868 9024 10 March 2006. Summary of changes for version 20060310:
3869 9025
3870 9026 1) ACPI CA Core Subsystem:
3871 9027
3872 9028 Tagged all external interfaces to the subsystem with the new
3873 -ACPI_EXPORT_SYMBOL macro. This macro can be defined as necessary to assist
9029 +ACPI_EXPORT_SYMBOL macro. This macro can be defined as necessary to
9030 +assist
3874 9031 kernel integration. For Linux, the macro resolves to the EXPORT_SYMBOL
3875 9032 macro. The default definition is NULL.
3876 9033
3877 -Added the ACPI_THREAD_ID type for the return value from AcpiOsGetThreadId.
9034 +Added the ACPI_THREAD_ID type for the return value from
9035 +AcpiOsGetThreadId.
3878 9036 This allows the host to define this as necessary to simplify kernel
3879 9037 integration. The default definition is ACPI_NATIVE_UINT.
3880 9038
3881 -Fixed two interpreter problems related to error processing, the deletion of
9039 +Fixed two interpreter problems related to error processing, the deletion
9040 +of
3882 9041 objects, and placing invalid pointers onto the internal operator result
3883 9042 stack. BZ 6028, 6151 (Valery Podrezov)
3884 9043
3885 -Increased the reference count threshold where a warning is emitted for large
3886 -reference counts in order to eliminate unnecessary warnings on systems with
9044 +Increased the reference count threshold where a warning is emitted for
9045 +large
9046 +reference counts in order to eliminate unnecessary warnings on systems
9047 +with
3887 9048 large namespaces (especially 64-bit.) Increased the value from 0x400 to
3888 9049 0x800.
3889 9050
3890 -Due to universal disagreement as to the meaning of the 'c' in the calloc()
9051 +Due to universal disagreement as to the meaning of the 'c' in the
9052 +calloc()
3891 9053 function, the ACPI_MEM_CALLOCATE macro has been renamed to
3892 9054 ACPI_ALLOCATE_ZEROED so that the purpose of the interface is 'clear'.
3893 9055 ACPI_MEM_ALLOCATE and ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and
3894 9056 ACPI_FREE.
3895 9057
3896 -Code and Data Size: These are the sizes for the acpica.lib produced by the
3897 -Microsoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI
3898 -driver or OSPM code. The debug version of the code includes the debug output
9058 +Code and Data Size: These are the sizes for the acpica.lib produced by
9059 +the
9060 +Microsoft Visual C++ 6.0 32-bit compiler. The values do not include any
9061 +ACPI
9062 +driver or OSPM code. The debug version of the code includes the debug
9063 +output
3899 9064 trace mechanism and has a much larger code and data size. Note that these
3900 9065 values will vary depending on the efficiency of the compiler and the
3901 9066 compiler options used during generation.
3902 9067
3903 9068 Previous Release:
3904 9069 Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total
3905 9070 Debug Version: 161.4K Code, 65.7K Data, 227.1K Total
3906 9071 Current Release:
3907 9072 Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total
3908 9073 Debug Version: 161.6K Code, 65.7K Data, 227.3K Total
3909 9074
3910 9075
3911 9076 2) iASL Compiler/Disassembler:
3912 9077
3913 9078 Disassembler: implemented support for symbolic resource descriptor
3914 -references. If a CreateXxxxField operator references a fixed offset within a
3915 -resource descriptor, a name is assigned to the descriptor and the offset is
9079 +references. If a CreateXxxxField operator references a fixed offset
9080 +within
9081 +a
9082 +resource descriptor, a name is assigned to the descriptor and the offset
9083 +is
3916 9084 translated to the appropriate resource tag and pathname. The addition of
3917 9085 this support brings the disassembled code very close to the original ASL
3918 -source code and helps eliminate run-time errors when the disassembled code
9086 +source code and helps eliminate run-time errors when the disassembled
9087 +code
3919 9088 is modified (and recompiled) in such a way as to invalidate the original
3920 9089 fixed offsets.
3921 9090
3922 -Implemented support for a Descriptor Name as the last parameter to the ASL
9091 +Implemented support for a Descriptor Name as the last parameter to the
9092 +ASL
3923 9093 Register() macro. This parameter was inadvertently left out of the ACPI
3924 9094 specification, and will be added for ACPI 3.0b.
3925 9095
3926 9096 Fixed a problem where the use of the "_OSI" string (versus the full path
3927 9097 "\_OSI") caused an internal compiler error. ("No back ptr to op")
3928 9098
3929 -Fixed a problem with the error message that occurs when an invalid string is
3930 -used for a _HID object (such as one with an embedded asterisk: "*PNP010A".)
9099 +Fixed a problem with the error message that occurs when an invalid string
9100 +is
9101 +used for a _HID object (such as one with an embedded asterisk:
9102 +"*PNP010A".)
3931 9103 The correct message is now displayed.
3932 9104
3933 9105 ----------------------------------------
3934 9106 17 February 2006. Summary of changes for version 20060217:
3935 9107
3936 9108 1) ACPI CA Core Subsystem:
3937 9109
3938 -Implemented a change to the IndexField support to match the behavior of the
3939 -Microsoft AML interpreter. The value written to the Index register is now a
3940 -byte offset, no longer an index based upon the width of the Data register.
9110 +Implemented a change to the IndexField support to match the behavior of
9111 +the
9112 +Microsoft AML interpreter. The value written to the Index register is now
9113 +a
9114 +byte offset, no longer an index based upon the width of the Data
9115 +register.
3941 9116 This should fix IndexField problems seen on some machines where the Data
3942 9117 register is not exactly one byte wide. The ACPI specification will be
3943 9118 clarified on this point.
3944 9119
3945 9120 Fixed a problem where several resource descriptor types could overrun the
3946 9121 internal descriptor buffer due to size miscalculation: VendorShort,
3947 9122 VendorLong, and Interrupt. This was noticed on IA64 machines, but could
3948 9123 affect all platforms.
3949 9124
3950 -Fixed a problem where individual resource descriptors were misaligned within
9125 +Fixed a problem where individual resource descriptors were misaligned
9126 +within
3951 9127 the internal buffer, causing alignment faults on IA64 platforms.
3952 9128
3953 -Code and Data Size: These are the sizes for the acpica.lib produced by the
3954 -Microsoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI
3955 -driver or OSPM code. The debug version of the code includes the debug output
9129 +Code and Data Size: These are the sizes for the acpica.lib produced by
9130 +the
9131 +Microsoft Visual C++ 6.0 32-bit compiler. The values do not include any
9132 +ACPI
9133 +driver or OSPM code. The debug version of the code includes the debug
9134 +output
3956 9135 trace mechanism and has a much larger code and data size. Note that these
3957 9136 values will vary depending on the efficiency of the compiler and the
3958 9137 compiler options used during generation.
3959 9138
3960 9139 Previous Release:
3961 9140 Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total
3962 9141 Debug Version: 161.3K Code, 65.6K Data, 226.9K Total
3963 9142 Current Release:
3964 9143 Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total
3965 9144 Debug Version: 161.4K Code, 65.7K Data, 227.1K Total
3966 9145
3967 9146
3968 9147 2) iASL Compiler/Disassembler:
3969 9148
3970 9149 Implemented support for new reserved names: _WDG and _WED are Microsoft
3971 9150 extensions for Windows Instrumentation Management, _TDL is a new ACPI-
3972 9151 defined method (Throttling Depth Limit.)
3973 9152
3974 9153 Fixed a problem where a zero-length VendorShort or VendorLong resource
3975 9154 descriptor was incorrectly emitted as a descriptor of length one.
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3976 9155
3977 9156 ----------------------------------------
3978 9157 10 February 2006. Summary of changes for version 20060210:
3979 9158
3980 9159 1) ACPI CA Core Subsystem:
3981 9160
3982 9161 Removed a couple of extraneous ACPI_ERROR messages that appeared during
3983 9162 normal execution. These became apparent after the conversion from
3984 9163 ACPI_DEBUG_PRINT.
3985 9164
3986 -Fixed a problem where the CreateField operator could hang if the BitIndex or
9165 +Fixed a problem where the CreateField operator could hang if the BitIndex
9166 +or
3987 9167 NumBits parameter referred to a named object. (Valery Podrezov, BZ 5359)
3988 9168
3989 9169 Fixed a problem where a DeRefOf operation on a buffer object incorrectly
3990 9170 failed with an exception. This also fixes a couple of related RefOf and
3991 9171 DeRefOf issues. (Valery Podrezov, BZ 5360/5392/5387)
3992 9172
3993 -Fixed a problem where the AE_BUFFER_LIMIT exception was returned instead of
3994 -AE_STRING_LIMIT on an out-of-bounds Index() operation. (Valery Podrezov, BZ
9173 +Fixed a problem where the AE_BUFFER_LIMIT exception was returned instead
9174 +of
9175 +AE_STRING_LIMIT on an out-of-bounds Index() operation. (Valery Podrezov,
9176 +BZ
3995 9177 5480)
3996 9178
3997 -Implemented a memory cleanup at the end of the execution of each iteration
3998 -of an AML While() loop, preventing the accumulation of outstanding objects.
9179 +Implemented a memory cleanup at the end of the execution of each
9180 +iteration
9181 +of an AML While() loop, preventing the accumulation of outstanding
9182 +objects.
3999 9183 (Valery Podrezov, BZ 5427)
4000 9184
4001 -Eliminated a chunk of duplicate code in the object resolution code. (Valery
9185 +Eliminated a chunk of duplicate code in the object resolution code.
9186 +(Valery
4002 9187 Podrezov, BZ 5336)
4003 9188
4004 9189 Fixed several warnings during the 64-bit code generation.
4005 9190
4006 -The AcpiSrc source code conversion tool now inserts one line of whitespace
4007 -after an if() statement that is followed immediately by a comment, improving
9191 +The AcpiSrc source code conversion tool now inserts one line of
9192 +whitespace
9193 +after an if() statement that is followed immediately by a comment,
9194 +improving
4008 9195 readability of the Linux code.
4009 9196
4010 9197 Code and Data Size: The current and previous library sizes for the core
4011 9198 subsystem are shown below. These are the code and data sizes for the
4012 -acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
4013 -values do not include any ACPI driver or OSPM code. The debug version of the
9199 +acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9200 +These
9201 +values do not include any ACPI driver or OSPM code. The debug version of
9202 +the
4014 9203 code includes the debug output trace mechanism and has a much larger code
4015 -and data size. Note that these values will vary depending on the efficiency
9204 +and data size. Note that these values will vary depending on the
9205 +efficiency
4016 9206 of the compiler and the compiler options used during generation.
4017 9207
4018 9208 Previous Release:
4019 9209 Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total
4020 9210 Debug Version: 161.3K Code, 65.7K Data, 227.0K Total
4021 9211 Current Release:
4022 9212 Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total
4023 9213 Debug Version: 161.3K Code, 65.6K Data, 226.9K Total
4024 9214
4025 9215
4026 9216 2) iASL Compiler/Disassembler:
4027 9217
4028 -Fixed a problem with the disassembly of a BankField operator with a complex
9218 +Fixed a problem with the disassembly of a BankField operator with a
9219 +complex
4029 9220 expression for the BankValue parameter.
4030 9221
4031 9222 ----------------------------------------
4032 9223 27 January 2006. Summary of changes for version 20060127:
4033 9224
4034 9225 1) ACPI CA Core Subsystem:
4035 9226
4036 -Implemented support in the Resource Manager to allow unresolved namestring
4037 -references within resource package objects for the _PRT method. This support
9227 +Implemented support in the Resource Manager to allow unresolved
9228 +namestring
9229 +references within resource package objects for the _PRT method. This
9230 +support
4038 9231 is in addition to the previously implemented unresolved reference support
4039 9232 within the AML parser. If the interpreter slack mode is enabled, these
4040 -unresolved references will be passed through to the caller as a NULL package
9233 +unresolved references will be passed through to the caller as a NULL
9234 +package
4041 9235 entry.
4042 9236
4043 9237 Implemented and deployed new macros and functions for error and warning
4044 9238 messages across the subsystem. These macros are simpler and generate less
4045 9239 code than their predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION,
4046 9240 ACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. The older
4047 9241 macros remain defined to allow ACPI drivers time to migrate to the new
4048 9242 macros.
4049 9243
4050 -Implemented the ACPI_CPU_FLAGS type to simplify host OS integration of the
9244 +Implemented the ACPI_CPU_FLAGS type to simplify host OS integration of
9245 +the
4051 9246 Acquire/Release Lock OSL interfaces.
4052 9247
4053 9248 Fixed a problem where Alias ASL operators are sometimes not correctly
4054 9249 resolved, in both the interpreter and the iASL compiler.
4055 9250
4056 -Fixed several problems with the implementation of the ConcatenateResTemplate
9251 +Fixed several problems with the implementation of the
9252 +ConcatenateResTemplate
4057 9253 ASL operator. As per the ACPI specification, zero length buffers are now
4058 9254 treated as a single EndTag. One-length buffers always cause a fatal
4059 -exception. Non-zero length buffers that do not end with a full 2-byte EndTag
9255 +exception. Non-zero length buffers that do not end with a full 2-byte
9256 +EndTag
4060 9257 cause a fatal exception.
4061 9258
4062 9259 Fixed a possible structure overwrite in the AcpiGetObjectInfo external
4063 9260 interface. (With assistance from Thomas Renninger)
4064 9261
4065 9262 Code and Data Size: The current and previous library sizes for the core
4066 9263 subsystem are shown below. These are the code and data sizes for the
4067 -acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
4068 -values do not include any ACPI driver or OSPM code. The debug version of the
9264 +acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9265 +These
9266 +values do not include any ACPI driver or OSPM code. The debug version of
9267 +the
4069 9268 code includes the debug output trace mechanism and has a much larger code
4070 -and data size. Note that these values will vary depending on the efficiency
9269 +and data size. Note that these values will vary depending on the
9270 +efficiency
4071 9271 of the compiler and the compiler options used during generation.
4072 9272
4073 9273 Previous Release:
4074 9274 Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total
4075 9275 Debug Version: 163.2K Code, 66.2K Data, 229.4K Total
4076 9276 Current Release:
4077 9277 Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total
4078 9278 Debug Version: 161.3K Code, 65.7K Data, 227.0K Total
4079 9279
4080 9280
4081 9281 2) iASL Compiler/Disassembler:
4082 9282
4083 -Fixed an internal error that was generated for any forward references to ASL
9283 +Fixed an internal error that was generated for any forward references to
9284 +ASL
4084 9285 Alias objects.
4085 9286
4086 9287 ----------------------------------------
4087 9288 13 January 2006. Summary of changes for version 20060113:
4088 9289
4089 9290 1) ACPI CA Core Subsystem:
4090 9291
4091 9292 Added 2006 copyright to all module headers and signons. This affects
4092 9293 virtually every file in the ACPICA core subsystem, iASL compiler, and the
4093 9294 utilities.
4094 9295
4095 -Enhanced the ACPICA error reporting in order to simplify user migration to
9296 +Enhanced the ACPICA error reporting in order to simplify user migration
9297 +to
4096 9298 the non-debug version of ACPICA. Replaced all instances of the
4097 -ACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN debug
9299 +ACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN
9300 +debug
4098 9301 levels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros,
4099 -respectively. This preserves all error and warning messages in the non-debug
9302 +respectively. This preserves all error and warning messages in the non-
9303 +debug
4100 9304 version of the ACPICA code (this has been referred to as the "debug lite"
4101 9305 option.) Over 200 cases were converted to create a total of over 380
4102 -error/warning messages across the ACPICA code. This increases the code and
4103 -data size of the default non-debug version of the code somewhat (about 13K),
9306 +error/warning messages across the ACPICA code. This increases the code
9307 +and
9308 +data size of the default non-debug version of the code somewhat (about
9309 +13K),
4104 9310 but all error/warning reporting may be disabled if desired (and code
4105 9311 eliminated) by specifying the ACPI_NO_ERROR_MESSAGES compile-time
4106 -configuration option. The size of the debug version of ACPICA remains about
9312 +configuration option. The size of the debug version of ACPICA remains
9313 +about
4107 9314 the same.
4108 9315
4109 9316 Fixed a memory leak within the AML Debugger "Set" command. One object was
4110 9317 not properly deleted for every successful invocation of the command.
4111 9318
4112 9319 Code and Data Size: The current and previous library sizes for the core
4113 9320 subsystem are shown below. These are the code and data sizes for the
4114 -acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
4115 -values do not include any ACPI driver or OSPM code. The debug version of the
9321 +acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9322 +These
9323 +values do not include any ACPI driver or OSPM code. The debug version of
9324 +the
4116 9325 code includes the debug output trace mechanism and has a much larger code
4117 -and data size. Note that these values will vary depending on the efficiency
9326 +and data size. Note that these values will vary depending on the
9327 +efficiency
4118 9328 of the compiler and the compiler options used during generation.
4119 9329
4120 9330 Previous Release:
4121 9331 Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total
4122 9332 Debug Version: 163.7K Code, 67.5K Data, 231.2K Total
4123 9333 Current Release:
4124 9334 Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total
4125 9335 Debug Version: 163.2K Code, 66.2K Data, 229.4K Total
4126 9336
4127 9337
4128 9338 2) iASL Compiler/Disassembler:
4129 9339
4130 9340 The compiler now officially supports the ACPI 3.0a specification that was
4131 -released on December 30, 2005. (Specification is available at www.acpi.info)
9341 +released on December 30, 2005. (Specification is available at
9342 +www.acpi.info)
4132 9343
4133 9344 ----------------------------------------
4134 9345 16 December 2005. Summary of changes for version 20051216:
4135 9346
4136 9347 1) ACPI CA Core Subsystem:
4137 9348
4138 9349 Implemented optional support to allow unresolved names within ASL Package
4139 9350 objects. A null object is inserted in the package when a named reference
4140 9351 cannot be located in the current namespace. Enabled via the interpreter
4141 -slack flag, this should eliminate AE_NOT_FOUND exceptions seen on machines
9352 +slack flag, this should eliminate AE_NOT_FOUND exceptions seen on
9353 +machines
4142 9354 that contain such code.
4143 9355
4144 -Implemented an optimization to the initialization sequence that can improve
4145 -boot time. During ACPI device initialization, the _STA method is now run if
4146 -and only if the _INI method exists. The _STA method is used to determine if
4147 -the device is present; An _INI can only be run if _STA returns present, but
9356 +Implemented an optimization to the initialization sequence that can
9357 +improve
9358 +boot time. During ACPI device initialization, the _STA method is now run
9359 +if
9360 +and only if the _INI method exists. The _STA method is used to determine
9361 +if
9362 +the device is present; An _INI can only be run if _STA returns present,
9363 +but
4148 9364 it is a waste of time to run the _STA method if the _INI does not exist.
4149 9365 (Prototype and assistance from Dong Wei)
4150 9366
4151 -Implemented use of the C99 uintptr_t for the pointer casting macros if it is
4152 -available in the current compiler. Otherwise, the default (void *) cast is
9367 +Implemented use of the C99 uintptr_t for the pointer casting macros if it
9368 +is
9369 +available in the current compiler. Otherwise, the default (void *) cast
9370 +is
4153 9371 used as before.
4154 9372
4155 9373 Fixed some possible memory leaks found within the execution path of the
4156 9374 Break, Continue, If, and CreateField operators. (Valery Podrezov)
4157 9375
4158 9376 Fixed a problem introduced in the 20051202 release where an exception is
4159 9377 generated during method execution if a control method attempts to declare
4160 9378 another method.
4161 9379
4162 9380 Moved resource descriptor string constants that are used by both the AML
4163 9381 disassembler and AML debugger to the common utilities directory so that
4164 9382 these components are independent.
4165 9383
4166 -Implemented support in the AcpiExec utility (-e switch) to globally ignore
9384 +Implemented support in the AcpiExec utility (-e switch) to globally
9385 +ignore
4167 9386 exceptions during control method execution (method is not aborted.)
4168 9387
4169 9388 Added the rsinfo.c source file to the AcpiExec makefile for Linux/Unix
4170 9389 generation.
4171 9390
4172 9391 Code and Data Size: The current and previous library sizes for the core
4173 9392 subsystem are shown below. These are the code and data sizes for the
4174 -acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
4175 -values do not include any ACPI driver or OSPM code. The debug version of the
9393 +acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9394 +These
9395 +values do not include any ACPI driver or OSPM code. The debug version of
9396 +the
4176 9397 code includes the debug output trace mechanism and has a much larger code
4177 -and data size. Note that these values will vary depending on the efficiency
9398 +and data size. Note that these values will vary depending on the
9399 +efficiency
4178 9400 of the compiler and the compiler options used during generation.
4179 9401
4180 9402 Previous Release:
4181 9403 Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total
4182 9404 Debug Version: 163.2K Code, 67.4K Data, 230.6K Total
4183 9405 Current Release:
4184 9406 Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total
4185 9407 Debug Version: 163.7K Code, 67.5K Data, 231.2K Total
4186 9408
4187 9409
4188 9410 2) iASL Compiler/Disassembler:
4189 9411
4190 -Fixed a problem where a CPU stack overflow fault could occur if a recursive
9412 +Fixed a problem where a CPU stack overflow fault could occur if a
9413 +recursive
4191 9414 method call was made from within a Return statement.
4192 9415
4193 9416 ----------------------------------------
4194 9417 02 December 2005. Summary of changes for version 20051202:
4195 9418
4196 9419 1) ACPI CA Core Subsystem:
4197 9420
4198 9421 Modified the parsing of control methods to no longer create namespace
4199 9422 objects during the first pass of the parse. Objects are now created only
4200 -during the execute phase, at the moment the namespace creation operator is
4201 -encountered in the AML (Name, OperationRegion, CreateByteField, etc.) This
9423 +during the execute phase, at the moment the namespace creation operator
9424 +is
9425 +encountered in the AML (Name, OperationRegion, CreateByteField, etc.)
9426 +This
4202 9427 should eliminate ALREADY_EXISTS exceptions seen on some machines where
4203 -reentrant control methods are protected by an AML mutex. The mutex will now
4204 -correctly block multiple threads from attempting to create the same object
9428 +reentrant control methods are protected by an AML mutex. The mutex will
9429 +now
9430 +correctly block multiple threads from attempting to create the same
9431 +object
4205 9432 more than once.
4206 9433
4207 9434 Increased the number of available Owner Ids for namespace object tracking
4208 -from 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen on
4209 -some machines with a large number of ACPI tables (either static or dynamic).
9435 +from 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen
9436 +on
9437 +some machines with a large number of ACPI tables (either static or
9438 +dynamic).
4210 9439
4211 -Fixed a problem with the AcpiExec utility where a fault could occur when the
9440 +Fixed a problem with the AcpiExec utility where a fault could occur when
9441 +the
4212 9442 -b switch (batch mode) is used.
4213 9443
4214 9444 Enhanced the namespace dump routine to output the owner ID for each
4215 9445 namespace object.
4216 9446
4217 9447 Code and Data Size: The current and previous library sizes for the core
4218 9448 subsystem are shown below. These are the code and data sizes for the
4219 -acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
4220 -values do not include any ACPI driver or OSPM code. The debug version of the
9449 +acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9450 +These
9451 +values do not include any ACPI driver or OSPM code. The debug version of
9452 +the
4221 9453 code includes the debug output trace mechanism and has a much larger code
4222 -and data size. Note that these values will vary depending on the efficiency
9454 +and data size. Note that these values will vary depending on the
9455 +efficiency
4223 9456 of the compiler and the compiler options used during generation.
4224 9457
4225 9458 Previous Release:
4226 9459 Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total
4227 9460 Debug Version: 163.0K Code, 67.4K Data, 230.4K Total
4228 9461 Current Release:
4229 9462 Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total
4230 9463 Debug Version: 163.2K Code, 67.4K Data, 230.6K Total
4231 9464
4232 9465
4233 9466 2) iASL Compiler/Disassembler:
4234 9467
4235 -Fixed a parse error during compilation of certain Switch/Case constructs. To
4236 -simplify the parse, the grammar now allows for multiple Default statements
9468 +Fixed a parse error during compilation of certain Switch/Case constructs.
9469 +To
9470 +simplify the parse, the grammar now allows for multiple Default
9471 +statements
4237 9472 and this error is now detected and flagged during the analysis phase.
4238 9473
4239 9474 Disassembler: The disassembly now includes the contents of the original
4240 9475 table header within a comment at the start of the file. This includes the
4241 9476 name and version of the original ASL compiler.
4242 9477
4243 9478 ----------------------------------------
4244 9479 17 November 2005. Summary of changes for version 20051117:
4245 9480
4246 9481 1) ACPI CA Core Subsystem:
4247 9482
4248 9483 Fixed a problem in the AML parser where the method thread count could be
4249 -decremented below zero if any errors occurred during the method parse phase.
4250 -This should eliminate AE_AML_METHOD_LIMIT exceptions seen on some machines.
9484 +decremented below zero if any errors occurred during the method parse
9485 +phase.
9486 +This should eliminate AE_AML_METHOD_LIMIT exceptions seen on some
9487 +machines.
4251 9488 This also fixed a related regression with the mechanism that detects and
4252 9489 corrects methods that cannot properly handle reentrancy (related to the
4253 9490 deployment of the new OwnerId mechanism.)
4254 9491
4255 9492 Eliminated the pre-parsing of control methods (to detect errors) during
4256 -table load. Related to the problem above, this was causing unwind issues if
4257 -any errors occurred during the parse, and it seemed to be overkill. A table
9493 +table load. Related to the problem above, this was causing unwind issues
9494 +if
9495 +any errors occurred during the parse, and it seemed to be overkill. A
9496 +table
4258 9497 load should not be aborted if there are problems with any single control
4259 9498 method, thus rendering this feature rather pointless.
4260 9499
4261 -Fixed a problem with the new table-driven resource manager where an internal
9500 +Fixed a problem with the new table-driven resource manager where an
9501 +internal
4262 9502 buffer overflow could occur for small resource templates.
4263 9503
4264 -Implemented a new external interface, AcpiGetVendorResource. This interface
4265 -will find and return a vendor-defined resource descriptor within a _CRS or
4266 -_PRS method via an ACPI 3.0 UUID match. With assistance from Bjorn Helgaas.
9504 +Implemented a new external interface, AcpiGetVendorResource. This
9505 +interface
9506 +will find and return a vendor-defined resource descriptor within a _CRS
9507 +or
9508 +_PRS method via an ACPI 3.0 UUID match. With assistance from Bjorn
9509 +Helgaas.
4267 9510
4268 9511 Removed the length limit (200) on string objects as per the upcoming ACPI
4269 -3.0A specification. This affects the following areas of the interpreter: 1)
4270 -any implicit conversion of a Buffer to a String, 2) a String object result
9512 +3.0A specification. This affects the following areas of the interpreter:
9513 +1)
9514 +any implicit conversion of a Buffer to a String, 2) a String object
9515 +result
4271 9516 of the ASL Concatentate operator, 3) the String object result of the ASL
4272 9517 ToString operator.
4273 9518
4274 -Fixed a problem in the Windows OS interface layer (OSL) where a WAIT_FOREVER
9519 +Fixed a problem in the Windows OS interface layer (OSL) where a
9520 +WAIT_FOREVER
4275 9521 on a semaphore object would incorrectly timeout. This allows the
4276 9522 multithreading features of the AcpiExec utility to work properly under
4277 9523 Windows.
4278 9524
4279 9525 Updated the Linux makefiles for the iASL compiler and AcpiExec to include
4280 9526 the recently added file named "utresrc.c".
4281 9527
4282 9528 Code and Data Size: The current and previous library sizes for the core
4283 9529 subsystem are shown below. These are the code and data sizes for the
4284 -acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
4285 -values do not include any ACPI driver or OSPM code. The debug version of the
9530 +acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9531 +These
9532 +values do not include any ACPI driver or OSPM code. The debug version of
9533 +the
4286 9534 code includes the debug output trace mechanism and has a much larger code
4287 -and data size. Note that these values will vary depending on the efficiency
9535 +and data size. Note that these values will vary depending on the
9536 +efficiency
4288 9537 of the compiler and the compiler options used during generation.
4289 9538
4290 9539 Previous Release:
4291 9540 Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total
4292 9541 Debug Version: 163.0K Code, 67.4K Data, 230.4K Total
4293 9542 Current Release:
4294 9543 Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total
4295 9544 Debug Version: 163.0K Code, 67.4K Data, 230.4K Total
4296 9545
4297 9546
4298 9547 2) iASL Compiler/Disassembler:
4299 9548
4300 9549 Removed the limit (200) on string objects as per the upcoming ACPI 3.0A
4301 -specification. For the iASL compiler, this means that string literals within
9550 +specification. For the iASL compiler, this means that string literals
9551 +within
4302 9552 the source ASL can be of any length.
4303 9553
4304 9554 Enhanced the listing output to dump the AML code for resource descriptors
4305 -immediately after the ASL code for each descriptor, instead of in a block at
9555 +immediately after the ASL code for each descriptor, instead of in a block
9556 +at
4306 9557 the end of the entire resource template.
4307 9558
4308 9559 Enhanced the compiler debug output to dump the entire original parse tree
4309 -constructed during the parse phase, before any transforms are applied to the
9560 +constructed during the parse phase, before any transforms are applied to
9561 +the
4310 9562 tree. The transformed tree is dumped also.
4311 9563
4312 9564 ----------------------------------------
4313 9565 02 November 2005. Summary of changes for version 20051102:
4314 9566
4315 9567 1) ACPI CA Core Subsystem:
4316 9568
4317 -Modified the subsystem initialization sequence to improve GPE support. The
4318 -GPE initialization has been split into two parts in order to defer execution
4319 -of the _PRW methods (Power Resources for Wake) until after the hardware is
9569 +Modified the subsystem initialization sequence to improve GPE support.
9570 +The
9571 +GPE initialization has been split into two parts in order to defer
9572 +execution
9573 +of the _PRW methods (Power Resources for Wake) until after the hardware
9574 +is
4320 9575 fully initialized and the SCI handler is installed. This allows the _PRW
4321 -methods to access fields protected by the Global Lock. This will fix systems
9576 +methods to access fields protected by the Global Lock. This will fix
9577 +systems
4322 9578 where a NO_GLOBAL_LOCK exception has been seen during initialization.
4323 9579
4324 -Converted the ACPI internal object disassemble and display code within the
9580 +Converted the ACPI internal object disassemble and display code within
9581 +the
4325 9582 AML debugger to fully table-driven operation, reducing code size and
4326 9583 increasing maintainability.
4327 9584
4328 -Fixed a regression with the ConcatenateResTemplate() ASL operator introduced
9585 +Fixed a regression with the ConcatenateResTemplate() ASL operator
9586 +introduced
4329 9587 in the 20051021 release.
4330 9588
4331 9589 Implemented support for "local" internal ACPI object types within the
4332 9590 debugger "Object" command and the AcpiWalkNamespace external interfaces.
4333 -These local types include RegionFields, BankFields, IndexFields, Alias, and
9591 +These local types include RegionFields, BankFields, IndexFields, Alias,
9592 +and
4334 9593 reference objects.
4335 9594
4336 -Moved common AML resource handling code into a new file, "utresrc.c". This
9595 +Moved common AML resource handling code into a new file, "utresrc.c".
9596 +This
4337 9597 code is shared by both the Resource Manager and the AML Debugger.
4338 9598
4339 9599 Code and Data Size: The current and previous library sizes for the core
4340 9600 subsystem are shown below. These are the code and data sizes for the
4341 -acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
4342 -values do not include any ACPI driver or OSPM code. The debug version of the
9601 +acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9602 +These
9603 +values do not include any ACPI driver or OSPM code. The debug version of
9604 +the
4343 9605 code includes the debug output trace mechanism and has a much larger code
4344 -and data size. Note that these values will vary depending on the efficiency
9606 +and data size. Note that these values will vary depending on the
9607 +efficiency
4345 9608 of the compiler and the compiler options used during generation.
4346 9609
4347 9610 Previous Release:
4348 9611 Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total
4349 9612 Debug Version: 163.5K Code, 67.0K Data, 230.5K Total
4350 9613 Current Release:
4351 9614 Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total
4352 9615 Debug Version: 163.0K Code, 67.4K Data, 230.4K Total
4353 9616
4354 9617
4355 9618 2) iASL Compiler/Disassembler:
4356 9619
4357 -Fixed a problem with very large initializer lists (more than 4000 elements)
9620 +Fixed a problem with very large initializer lists (more than 4000
9621 +elements)
4358 9622 for both Buffer and Package objects where the parse stack could overflow.
4359 9623
4360 -Enhanced the pre-compile source code scan for non-ASCII characters to ignore
4361 -characters within comment fields. The scan is now always performed and is no
9624 +Enhanced the pre-compile source code scan for non-ASCII characters to
9625 +ignore
9626 +characters within comment fields. The scan is now always performed and is
9627 +no
4362 9628 longer optional, detecting invalid characters within a source file
4363 9629 immediately rather than during the parse phase or later.
4364 9630
4365 -Enhanced the ASL grammar definition to force early reductions on all list-
9631 +Enhanced the ASL grammar definition to force early reductions on all
9632 +list-
4366 9633 style grammar elements so that the overall parse stack usage is greatly
4367 -reduced. This should improve performance and reduce the possibility of parse
9634 +reduced. This should improve performance and reduce the possibility of
9635 +parse
4368 9636 stack overflow.
4369 9637
4370 -Eliminated all reduce/reduce conflicts in the iASL parser generation. Also,
9638 +Eliminated all reduce/reduce conflicts in the iASL parser generation.
9639 +Also,
4371 9640 with the addition of a %expected statement, the compiler generates from
4372 9641 source with no warnings.
4373 9642
4374 9643 Fixed a possible segment fault in the disassembler if the input filename
4375 9644 does not contain a "dot" extension (Thomas Renninger).
4376 9645
4377 9646 ----------------------------------------
4378 9647 21 October 2005. Summary of changes for version 20051021:
4379 9648
4380 9649 1) ACPI CA Core Subsystem:
4381 9650
4382 9651 Implemented support for the EM64T and other x86-64 processors. This
4383 9652 essentially entails recognizing that these processors support non-aligned
4384 9653 memory transfers. Previously, all 64-bit processors were assumed to lack
4385 9654 hardware support for non-aligned transfers.
4386 9655
4387 9656 Completed conversion of the Resource Manager to nearly full table-driven
4388 9657 operation. Specifically, the resource conversion code (convert AML to
4389 9658 internal format and the reverse) and the debug code to dump internal
4390 -resource descriptors are fully table-driven, reducing code and data size and
9659 +resource descriptors are fully table-driven, reducing code and data size
9660 +and
4391 9661 improving maintainability.
4392 9662
4393 -The OSL interfaces for Acquire and Release Lock now use a 64-bit flag word
4394 -on 64-bit processors instead of a fixed 32-bit word. (With assistance from
9663 +The OSL interfaces for Acquire and Release Lock now use a 64-bit flag
9664 +word
9665 +on 64-bit processors instead of a fixed 32-bit word. (With assistance
9666 +from
4395 9667 Alexey Starikovskiy)
4396 9668
4397 9669 Implemented support within the resource conversion code for the Type-
4398 9670 Specific byte within the various ACPI 3.0 *WordSpace macros.
4399 9671
4400 -Fixed some issues within the resource conversion code for the type-specific
9672 +Fixed some issues within the resource conversion code for the type-
9673 +specific
4401 9674 flags for both Memory and I/O address resource descriptors. For Memory,
4402 9675 implemented support for the MTP and TTP flags. For I/O, split the TRS and
4403 9676 TTP flags into two separate fields.
4404 9677
4405 9678 Code and Data Size: The current and previous library sizes for the core
4406 9679 subsystem are shown below. These are the code and data sizes for the
4407 -acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
4408 -values do not include any ACPI driver or OSPM code. The debug version of the
9680 +acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9681 +These
9682 +values do not include any ACPI driver or OSPM code. The debug version of
9683 +the
4409 9684 code includes the debug output trace mechanism and has a much larger code
4410 -and data size. Note that these values will vary depending on the efficiency
9685 +and data size. Note that these values will vary depending on the
9686 +efficiency
4411 9687 of the compiler and the compiler options used during generation.
4412 9688
4413 9689 Previous Release:
4414 9690 Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total
4415 9691 Debug Version: 168.0K Code, 68.3K Data, 236.3K Total
4416 9692 Current Release:
4417 9693 Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total
4418 9694 Debug Version: 163.5K Code, 67.0K Data, 230.5K Total
4419 9695
4420 9696
4421 9697
4422 9698 2) iASL Compiler/Disassembler:
4423 9699
4424 -Relaxed a compiler restriction that disallowed a ResourceIndex byte if the
9700 +Relaxed a compiler restriction that disallowed a ResourceIndex byte if
9701 +the
4425 9702 corresponding ResourceSource string was not also present in a resource
4426 9703 descriptor declaration. This restriction caused problems with existing
4427 -AML/ASL code that includes the Index byte without the string. When such AML
9704 +AML/ASL code that includes the Index byte without the string. When such
9705 +AML
4428 9706 was disassembled, it could not be compiled without modification. Further,
4429 -the modified code created a resource template with a different size than the
4430 -original, breaking code that used fixed offsets into the resource template
9707 +the modified code created a resource template with a different size than
9708 +the
9709 +original, breaking code that used fixed offsets into the resource
9710 +template
4431 9711 buffer.
4432 9712
4433 -Removed a recent feature of the disassembler to ignore a lone ResourceIndex
9713 +Removed a recent feature of the disassembler to ignore a lone
9714 +ResourceIndex
4434 9715 byte. This byte is now emitted if present so that the exact AML can be
4435 9716 reproduced when the disassembled code is recompiled.
4436 9717
4437 9718 Improved comments and text alignment for the resource descriptor code
4438 9719 emitted by the disassembler.
4439 9720
4440 -Implemented disassembler support for the ACPI 3.0 AccessSize field within a
9721 +Implemented disassembler support for the ACPI 3.0 AccessSize field within
9722 +a
4441 9723 Register() resource descriptor.
4442 9724
4443 9725 ----------------------------------------
4444 9726 30 September 2005. Summary of changes for version 20050930:
4445 9727
4446 9728 1) ACPI CA Core Subsystem:
4447 9729
4448 9730 Completed a major overhaul of the Resource Manager code - specifically,
4449 -optimizations in the area of the AML/internal resource conversion code. The
4450 -code has been optimized to simplify and eliminate duplicated code, CPU stack
9731 +optimizations in the area of the AML/internal resource conversion code.
9732 +The
9733 +code has been optimized to simplify and eliminate duplicated code, CPU
9734 +stack
4451 9735 use has been decreased by optimizing function parameters and local
4452 -variables, and naming conventions across the manager have been standardized
9736 +variables, and naming conventions across the manager have been
9737 +standardized
4453 9738 for clarity and ease of maintenance (this includes function, parameter,
4454 9739 variable, and struct/typedef names.) The update may force changes in some
4455 9740 driver code, depending on how resources are handled by the host OS.
4456 9741
4457 9742 All Resource Manager dispatch and information tables have been moved to a
4458 9743 single location for clarity and ease of maintenance. One new file was
4459 9744 created, named "rsinfo.c".
4460 9745
4461 9746 The ACPI return macros (return_ACPI_STATUS, etc.) have been modified to
4462 -guarantee that the argument is not evaluated twice, making them less prone
9747 +guarantee that the argument is not evaluated twice, making them less
9748 +prone
4463 9749 to macro side-effects. However, since there exists the possibility of
4464 -additional stack use if a particular compiler cannot optimize them (such as
4465 -in the debug generation case), the original macros are optionally available.
9750 +additional stack use if a particular compiler cannot optimize them (such
9751 +as
9752 +in the debug generation case), the original macros are optionally
9753 +available.
4466 9754 Note that some invocations of the return_VALUE macro may now cause size
4467 -mismatch warnings; the return_UINT8 and return_UINT32 macros are provided to
9755 +mismatch warnings; the return_UINT8 and return_UINT32 macros are provided
9756 +to
4468 9757 eliminate these. (From Randy Dunlap)
4469 9758
4470 -Implemented a new mechanism to enable debug tracing for individual control
9759 +Implemented a new mechanism to enable debug tracing for individual
9760 +control
4471 9761 methods. A new external interface, AcpiDebugTrace, is provided to enable
4472 9762 this mechanism. The intent is to allow the host OS to easily enable and
4473 9763 disable tracing for problematic control methods. This interface can be
4474 9764 easily exposed to a user or debugger interface if desired. See the file
4475 9765 psxface.c for details.
4476 9766
4477 9767 AcpiUtCallocate will now return a valid pointer if a length of zero is
4478 9768 specified - a length of one is used and a warning is issued. This matches
4479 9769 the behavior of AcpiUtAllocate.
4480 9770
4481 9771 Code and Data Size: The current and previous library sizes for the core
4482 9772 subsystem are shown below. These are the code and data sizes for the
4483 -acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
4484 -values do not include any ACPI driver or OSPM code. The debug version of the
9773 +acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9774 +These
9775 +values do not include any ACPI driver or OSPM code. The debug version of
9776 +the
4485 9777 code includes the debug output trace mechanism and has a much larger code
4486 -and data size. Note that these values will vary depending on the efficiency
9778 +and data size. Note that these values will vary depending on the
9779 +efficiency
4487 9780 of the compiler and the compiler options used during generation.
4488 9781
4489 9782 Previous Release:
4490 9783 Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total
4491 9784 Debug Version: 168.1K Code, 68.4K Data, 236.5K Total
4492 9785 Current Release:
4493 9786 Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total
4494 9787 Debug Version: 168.0K Code, 68.3K Data, 236.3K Total
4495 9788
4496 9789
4497 9790 2) iASL Compiler/Disassembler:
|
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4498 9791
4499 9792 A remark is issued if the effective compile-time length of a package or
4500 9793 buffer is zero. Previously, this was a warning.
4501 9794
4502 9795 ----------------------------------------
4503 9796 16 September 2005. Summary of changes for version 20050916:
4504 9797
4505 9798 1) ACPI CA Core Subsystem:
4506 9799
4507 9800 Fixed a problem within the Resource Manager where support for the Generic
4508 -Register descriptor was not fully implemented. This descriptor is now fully
9801 +Register descriptor was not fully implemented. This descriptor is now
9802 +fully
4509 9803 recognized, parsed, disassembled, and displayed.
4510 9804
4511 9805 Completely restructured the Resource Manager code to utilize table-driven
4512 -dispatch and lookup, eliminating many of the large switch() statements. This
9806 +dispatch and lookup, eliminating many of the large switch() statements.
9807 +This
4513 9808 reduces overall subsystem code size and code complexity. Affects the
4514 9809 resource parsing and construction, disassembly, and debug dump output.
4515 9810
4516 9811 Cleaned up and restructured the debug dump output for all resource
4517 9812 descriptors. Improved readability of the output and reduced code size.
4518 9813
4519 9814 Fixed a problem where changes to internal data structures caused the
4520 9815 optional ACPI_MUTEX_DEBUG code to fail compilation if specified.
4521 9816
4522 9817 Code and Data Size: The current and previous library sizes for the core
4523 9818 subsystem are shown below. These are the code and data sizes for the
4524 -acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
4525 -values do not include any ACPI driver or OSPM code. The debug version of the
9819 +acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9820 +These
9821 +values do not include any ACPI driver or OSPM code. The debug version of
9822 +the
4526 9823 code includes the debug output trace mechanism and has a much larger code
4527 -and data size. Note that these values will vary depending on the efficiency
9824 +and data size. Note that these values will vary depending on the
9825 +efficiency
4528 9826 of the compiler and the compiler options used during generation.
4529 9827
4530 9828 Previous Release:
4531 9829 Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total
4532 9830 Debug Version: 169.6K Code, 69.9K Data, 239.5K Total
4533 9831 Current Release:
4534 9832 Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total
4535 9833 Debug Version: 168.1K Code, 68.4K Data, 236.5K Total
4536 9834
4537 9835
4538 9836 2) iASL Compiler/Disassembler:
4539 9837
4540 -Updated the disassembler to automatically insert an EndDependentFn() macro
9838 +Updated the disassembler to automatically insert an EndDependentFn()
9839 +macro
4541 9840 into the ASL stream if this macro is missing in the original AML code,
4542 9841 simplifying compilation of the resulting ASL module.
4543 9842
4544 9843 Fixed a problem in the disassembler where a disassembled ResourceSource
4545 -string (within a large resource descriptor) was not surrounded by quotes and
9844 +string (within a large resource descriptor) was not surrounded by quotes
9845 +and
4546 9846 not followed by a comma, causing errors when the resulting ASL module was
4547 9847 compiled. Also, escape sequences within a ResourceSource string are now
4548 9848 handled correctly (especially "\\")
4549 9849
4550 9850 ----------------------------------------
4551 9851 02 September 2005. Summary of changes for version 20050902:
4552 9852
4553 9853 1) ACPI CA Core Subsystem:
4554 9854
4555 9855 Fixed a problem with the internal Owner ID allocation and deallocation
4556 9856 mechanisms for control method execution and recursive method invocation.
4557 9857 This should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId"
4558 9858 messages seen on some systems. Recursive method invocation depth is
4559 9859 currently limited to 255. (Alexey Starikovskiy)
4560 9860
4561 9861 Completely eliminated all vestiges of support for the "module-level
4562 -executable code" until this support is fully implemented and debugged. This
9862 +executable code" until this support is fully implemented and debugged.
9863 +This
4563 9864 should eliminate the NO_RETURN_VALUE exceptions seen during table load on
4564 9865 some systems that invoke this support.
4565 9866
4566 -Fixed a problem within the resource manager code where the transaction flags
9867 +Fixed a problem within the resource manager code where the transaction
9868 +flags
4567 9869 for a 64-bit address descriptor were handled incorrectly in the type-
4568 9870 specific flag byte.
4569 9871
4570 -Consolidated duplicate code within the address descriptor resource manager
9872 +Consolidated duplicate code within the address descriptor resource
9873 +manager
4571 9874 code, reducing overall subsystem code size.
4572 9875
4573 9876 Fixed a fault when using the AML debugger "disassemble" command to
4574 9877 disassemble individual control methods.
4575 9878
4576 9879 Removed references to the "release_current" directory within the Unix
4577 9880 release package.
4578 9881
4579 9882 Code and Data Size: The current and previous core subsystem library sizes
4580 9883 are shown below. These are the code and data sizes for the acpica.lib
4581 9884 produced by the Microsoft Visual C++ 6.0 compiler. These values do not
4582 -include any ACPI driver or OSPM code. The debug version of the code includes
4583 -the debug output trace mechanism and has a much larger code and data size.
4584 -Note that these values will vary depending on the efficiency of the compiler
9885 +include any ACPI driver or OSPM code. The debug version of the code
9886 +includes
9887 +the debug output trace mechanism and has a much larger code and data
9888 +size.
9889 +Note that these values will vary depending on the efficiency of the
9890 +compiler
4585 9891 and the compiler options used during generation.
4586 9892
4587 9893 Previous Release:
4588 9894 Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total
4589 9895 Debug Version: 170.0K Code, 69.9K Data, 239.9K Total
4590 9896 Current Release:
4591 9897 Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total
4592 9898 Debug Version: 169.6K Code, 69.9K Data, 239.5K Total
4593 9899
4594 9900
4595 9901 2) iASL Compiler/Disassembler:
4596 9902
4597 -Implemented an error check for illegal duplicate values in the interrupt and
9903 +Implemented an error check for illegal duplicate values in the interrupt
9904 +and
4598 9905 dma lists for the following ASL macros: Dma(), Irq(), IrqNoFlags(), and
4599 9906 Interrupt().
4600 9907
4601 -Implemented error checking for the Irq() and IrqNoFlags() macros to detect
9908 +Implemented error checking for the Irq() and IrqNoFlags() macros to
9909 +detect
4602 9910 too many values in the interrupt list (16 max) and invalid values in the
4603 9911 list (range 0 - 15)
4604 9912
4605 9913 The maximum length string literal within an ASL file is now restricted to
4606 9914 200 characters as per the ACPI specification.
4607 9915
4608 9916 Fixed a fault when using the -ln option (generate namespace listing).
4609 9917
4610 9918 Implemented an error check to determine if a DescriptorName within a
4611 9919 resource descriptor has already been used within the current scope.
4612 9920
4613 9921 ----------------------------------------
4614 9922 15 August 2005. Summary of changes for version 20050815:
4615 9923
4616 9924 1) ACPI CA Core Subsystem:
4617 9925
4618 -Implemented a full bytewise compare to determine if a table load request is
4619 -attempting to load a duplicate table. The compare is performed if the table
9926 +Implemented a full bytewise compare to determine if a table load request
9927 +is
9928 +attempting to load a duplicate table. The compare is performed if the
9929 +table
4620 9930 signatures and table lengths match. This will allow different tables with
4621 -the same OEM Table ID and revision to be loaded - probably against the ACPI
9931 +the same OEM Table ID and revision to be loaded - probably against the
9932 +ACPI
4622 9933 specification, but discovered in the field nonetheless.
4623 9934
4624 9935 Added the changes.txt logfile to each of the zipped release packages.
4625 9936
4626 9937 Code and Data Size: Current and previous core subsystem library sizes are
4627 -shown below. These are the code and data sizes for the acpica.lib produced
9938 +shown below. These are the code and data sizes for the acpica.lib
9939 +produced
4628 9940 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
4629 9941 any ACPI driver or OSPM code. The debug version of the code includes the
4630 -debug output trace mechanism and has a much larger code and data size. Note
4631 -that these values will vary depending on the efficiency of the compiler and
9942 +debug output trace mechanism and has a much larger code and data size.
9943 +Note
9944 +that these values will vary depending on the efficiency of the compiler
9945 +and
4632 9946 the compiler options used during generation.
4633 9947
4634 9948 Previous Release:
4635 9949 Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total
4636 9950 Debug Version: 167.0K Code, 69.9K Data, 236.9K Total
4637 9951 Current Release:
4638 9952 Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total
4639 9953 Debug Version: 170.0K Code, 69.9K Data, 239.9K Total
4640 9954
4641 9955
4642 9956 2) iASL Compiler/Disassembler:
4643 9957
4644 9958 Fixed a problem where incorrect AML code could be generated for Package
4645 9959 objects if optimization is disabled (via the -oa switch).
4646 9960
4647 9961 Fixed a problem with where incorrect AML code is generated for variable-
4648 -length packages when the package length is not specified and the number of
9962 +length packages when the package length is not specified and the number
9963 +of
4649 9964 initializer values is greater than 255.
4650 9965
4651 9966
4652 9967 ----------------------------------------
4653 9968 29 July 2005. Summary of changes for version 20050729:
4654 9969
4655 9970 1) ACPI CA Core Subsystem:
4656 9971
4657 -Implemented support to ignore an attempt to install/load a particular ACPI
9972 +Implemented support to ignore an attempt to install/load a particular
9973 +ACPI
4658 9974 table more than once. Apparently there exists BIOS code that repeatedly
4659 9975 attempts to load the same SSDT upon certain events. With assistance from
4660 9976 Venkatesh Pallipadi.
4661 9977
4662 9978 Restructured the main interface to the AML parser in order to correctly
4663 -handle all exceptional conditions. This will prevent leakage of the OwnerId
4664 -resource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some
9979 +handle all exceptional conditions. This will prevent leakage of the
9980 +OwnerId
9981 +resource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on
9982 +some
4665 9983 machines. With assistance from Alexey Starikovskiy.
4666 9984
4667 -Support for "module level code" has been disabled in this version due to a
4668 -number of issues that have appeared on various machines. The support can be
9985 +Support for "module level code" has been disabled in this version due to
9986 +a
9987 +number of issues that have appeared on various machines. The support can
9988 +be
4669 9989 enabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem
4670 -compilation. When the issues are fully resolved, the code will be enabled by
9990 +compilation. When the issues are fully resolved, the code will be enabled
9991 +by
4671 9992 default again.
4672 9993
4673 9994 Modified the internal functions for debug print support to define the
4674 -FunctionName parameter as a (const char *) for compatibility with compiler
9995 +FunctionName parameter as a (const char *) for compatibility with
9996 +compiler
4675 9997 built-in macros such as __FUNCTION__, etc.
4676 9998
4677 9999 Linted the entire ACPICA source tree for both 32-bit and 64-bit.
4678 10000
4679 -Implemented support to display an object count summary for the AML Debugger
10001 +Implemented support to display an object count summary for the AML
10002 +Debugger
4680 10003 commands Object and Methods.
4681 10004
4682 10005 Code and Data Size: Current and previous core subsystem library sizes are
4683 -shown below. These are the code and data sizes for the acpica.lib produced
10006 +shown below. These are the code and data sizes for the acpica.lib
10007 +produced
4684 10008 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
4685 10009 any ACPI driver or OSPM code. The debug version of the code includes the
4686 -debug output trace mechanism and has a much larger code and data size. Note
4687 -that these values will vary depending on the efficiency of the compiler and
10010 +debug output trace mechanism and has a much larger code and data size.
10011 +Note
10012 +that these values will vary depending on the efficiency of the compiler
10013 +and
4688 10014 the compiler options used during generation.
4689 10015
4690 10016 Previous Release:
4691 10017 Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total
4692 10018 Debug Version: 170.0K Code, 69.7K Data, 239.7K Total
4693 10019 Current Release:
4694 10020 Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total
4695 10021 Debug Version: 167.0K Code, 69.9K Data, 236.9K Total
4696 10022
4697 10023
4698 10024 2) iASL Compiler/Disassembler:
4699 10025
4700 10026 Fixed a regression that appeared in the 20050708 version of the compiler
4701 -where an error message was inadvertently emitted for invocations of the _OSI
10027 +where an error message was inadvertently emitted for invocations of the
10028 +_OSI
4702 10029 reserved control method.
4703 10030
4704 10031 ----------------------------------------
4705 10032 08 July 2005. Summary of changes for version 20050708:
4706 10033
4707 10034 1) ACPI CA Core Subsystem:
4708 10035
4709 10036 The use of the CPU stack in the debug version of the subsystem has been
4710 10037 considerably reduced. Previously, a debug structure was declared in every
4711 10038 function that used the debug macros. This structure has been removed in
4712 10039 favor of declaring the individual elements as parameters to the debug
4713 -functions. This reduces the cumulative stack use during nested execution of
4714 -ACPI function calls at the cost of a small increase in the code size of the
4715 -debug version of the subsystem. With assistance from Alexey Starikovskiy and
10040 +functions. This reduces the cumulative stack use during nested execution
10041 +of
10042 +ACPI function calls at the cost of a small increase in the code size of
10043 +the
10044 +debug version of the subsystem. With assistance from Alexey Starikovskiy
10045 +and
4716 10046 Len Brown.
4717 10047
4718 10048 Added the ACPI_GET_FUNCTION_NAME macro to enable the compiler-dependent
4719 10049 headers to define a macro that will return the current function name at
4720 -runtime (such as __FUNCTION__ or _func_, etc.) The function name is used by
10050 +runtime (such as __FUNCTION__ or _func_, etc.) The function name is used
10051 +by
4721 10052 the debug trace output. If ACPI_GET_FUNCTION_NAME is not defined in the
4722 -compiler-dependent header, the function name is saved on the CPU stack (one
10053 +compiler-dependent header, the function name is saved on the CPU stack
10054 +(one
4723 10055 pointer per function.) This mechanism is used because apparently there
4724 -exists no standard ANSI-C defined macro that that returns the function name.
10056 +exists no standard ANSI-C defined macro that that returns the function
10057 +name.
4725 10058
4726 10059 Redesigned and reimplemented the "Owner ID" mechanism used to track
4727 10060 namespace objects created/deleted by ACPI tables and control method
4728 -execution. A bitmap is now used to allocate and free the IDs, thus solving
4729 -the wraparound problem present in the previous implementation. The size of
10061 +execution. A bitmap is now used to allocate and free the IDs, thus
10062 +solving
10063 +the wraparound problem present in the previous implementation. The size
10064 +of
4730 10065 the namespace node descriptor was reduced by 2 bytes as a result (Alexey
4731 10066 Starikovskiy).
4732 10067
4733 -Removed the UINT32_BIT and UINT16_BIT types that were used for the bitfield
10068 +Removed the UINT32_BIT and UINT16_BIT types that were used for the
10069 +bitfield
4734 10070 flag definitions within the headers for the predefined ACPI tables. These
4735 -have been replaced by UINT8_BIT in order to increase the code portability of
10071 +have been replaced by UINT8_BIT in order to increase the code portability
10072 +of
4736 10073 the subsystem. If the use of UINT8 remains a problem, we may be forced to
4737 10074 eliminate bitfields entirely because of a lack of portability.
4738 10075
4739 -Enhanced the performance of the AcpiUtUpdateObjectReference procedure. This
4740 -is a frequently used function and this improvement increases the performance
10076 +Enhanced the performance of the AcpiUtUpdateObjectReference procedure.
10077 +This
10078 +is a frequently used function and this improvement increases the
10079 +performance
4741 10080 of the entire subsystem (Alexey Starikovskiy).
4742 10081
4743 10082 Fixed several possible memory leaks and the inverse - premature object
4744 10083 deletion (Alexey Starikovskiy).
4745 10084
4746 10085 Code and Data Size: Current and previous core subsystem library sizes are
4747 -shown below. These are the code and data sizes for the acpica.lib produced
10086 +shown below. These are the code and data sizes for the acpica.lib
10087 +produced
4748 10088 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
4749 10089 any ACPI driver or OSPM code. The debug version of the code includes the
4750 -debug output trace mechanism and has a much larger code and data size. Note
4751 -that these values will vary depending on the efficiency of the compiler and
10090 +debug output trace mechanism and has a much larger code and data size.
10091 +Note
10092 +that these values will vary depending on the efficiency of the compiler
10093 +and
4752 10094 the compiler options used during generation.
4753 10095
4754 10096 Previous Release:
4755 10097 Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total
4756 10098 Debug Version: 165.2K Code, 69.6K Data, 234.8K Total
4757 10099 Current Release:
4758 10100 Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total
4759 10101 Debug Version: 170.0K Code, 69.7K Data, 239.7K Total
4760 10102
4761 10103 ----------------------------------------
4762 10104 24 June 2005. Summary of changes for version 20050624:
4763 10105
4764 10106 1) ACPI CA Core Subsystem:
4765 10107
4766 10108 Modified the new OSL cache interfaces to use ACPI_CACHE_T as the type for
4767 -the host-defined cache object. This allows the OSL implementation to define
10109 +the host-defined cache object. This allows the OSL implementation to
10110 +define
4768 10111 and type this object in any manner desired, simplifying the OSL
4769 10112 implementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for
4770 10113 Linux, and should be defined in the OS-specific header file for other
4771 10114 operating systems as required.
4772 10115
4773 10116 Changed the interface to AcpiOsAcquireObject to directly return the
4774 10117 requested object as the function return (instead of ACPI_STATUS.) This
4775 10118 change was made for performance reasons, since this is the purpose of the
4776 10119 interface in the first place. AcpiOsAcquireObject is now similar to the
4777 10120 AcpiOsAllocate interface.
4778 10121
4779 -Implemented a new AML debugger command named Businfo. This command displays
4780 -information about all devices that have an associate _PRT object. The _ADR,
10122 +Implemented a new AML debugger command named Businfo. This command
10123 +displays
10124 +information about all devices that have an associate _PRT object. The
10125 +_ADR,
4781 10126 _HID, _UID, and _CID are displayed for these devices.
4782 10127
4783 -Modified the initialization sequence in AcpiInitializeSubsystem to call the
4784 -OSL interface AcpiOslInitialize first, before any local initialization. This
10128 +Modified the initialization sequence in AcpiInitializeSubsystem to call
10129 +the
10130 +OSL interface AcpiOslInitialize first, before any local initialization.
10131 +This
4785 10132 change was required because the global initialization now calls OSL
4786 10133 interfaces.
4787 10134
4788 -Enhanced the Dump command to display the entire contents of Package objects
10135 +Enhanced the Dump command to display the entire contents of Package
10136 +objects
4789 10137 (including all sub-objects and their values.)
4790 10138
4791 10139 Restructured the code base to split some files because of size and/or
4792 -because the code logically belonged in a separate file. New files are listed
4793 -below. All makefiles and project files included in the ACPI CA release have
10140 +because the code logically belonged in a separate file. New files are
10141 +listed
10142 +below. All makefiles and project files included in the ACPI CA release
10143 +have
4794 10144 been updated.
4795 10145 utilities/utcache.c /* Local cache interfaces */
4796 10146 utilities/utmutex.c /* Local mutex support */
4797 10147 utilities/utstate.c /* State object support */
4798 10148 interpreter/parser/psloop.c /* Main AML parse loop */
4799 10149
4800 10150 Code and Data Size: Current and previous core subsystem library sizes are
4801 -shown below. These are the code and data sizes for the acpica.lib produced
10151 +shown below. These are the code and data sizes for the acpica.lib
10152 +produced
4802 10153 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
4803 10154 any ACPI driver or OSPM code. The debug version of the code includes the
4804 -debug output trace mechanism and has a much larger code and data size. Note
4805 -that these values will vary depending on the efficiency of the compiler and
10155 +debug output trace mechanism and has a much larger code and data size.
10156 +Note
10157 +that these values will vary depending on the efficiency of the compiler
10158 +and
4806 10159 the compiler options used during generation.
4807 10160
4808 10161 Previous Release:
4809 10162 Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total
4810 10163 Debug Version: 164.0K Code, 69.1K Data, 233.1K Total
4811 10164 Current Release:
4812 10165 Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total
4813 10166 Debug Version: 165.2K Code, 69.6K Data, 234.8K Total
4814 10167
4815 10168
4816 10169 2) iASL Compiler/Disassembler:
4817 10170
4818 -Fixed a regression introduced in version 20050513 where the use of a Package
10171 +Fixed a regression introduced in version 20050513 where the use of a
10172 +Package
4819 10173 object within a Case() statement caused a compile time exception. The
4820 10174 original behavior has been restored (a Match() operator is emitted.)
4821 10175
4822 10176 ----------------------------------------
4823 10177 17 June 2005. Summary of changes for version 20050617:
4824 10178
4825 10179 1) ACPI CA Core Subsystem:
4826 10180
4827 -Moved the object cache operations into the OS interface layer (OSL) to allow
10181 +Moved the object cache operations into the OS interface layer (OSL) to
10182 +allow
4828 10183 the host OS to handle these operations if desired (for example, the Linux
4829 -OSL will invoke the slab allocator). This support is optional; the compile
4830 -time define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache
10184 +OSL will invoke the slab allocator). This support is optional; the
10185 +compile
10186 +time define ACPI_USE_LOCAL_CACHE may be used to utilize the original
10187 +cache
4831 10188 code in the ACPI CA core. The new OSL interfaces are shown below. See
4832 10189 utalloc.c for an example implementation, and acpiosxf.h for the exact
4833 10190 interface definitions. With assistance from Alexey Starikovskiy.
4834 10191 AcpiOsCreateCache
4835 10192 AcpiOsDeleteCache
4836 10193 AcpiOsPurgeCache
4837 10194 AcpiOsAcquireObject
4838 10195 AcpiOsReleaseObject
4839 10196
4840 -Modified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to return
10197 +Modified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to
10198 +return
4841 10199 and restore a flags parameter. This fits better with many OS lock models.
4842 10200 Note: the current execution state (interrupt handler or not) is no longer
4843 -passed to these interfaces. If necessary, the OSL must determine this state
10201 +passed to these interfaces. If necessary, the OSL must determine this
10202 +state
4844 10203 by itself, a simple and fast operation. With assistance from Alexey
4845 10204 Starikovskiy.
4846 10205
4847 10206 Fixed a problem in the ACPI table handling where a valid XSDT was assumed
4848 -present if the revision of the RSDP was 2 or greater. According to the ACPI
10207 +present if the revision of the RSDP was 2 or greater. According to the
10208 +ACPI
4849 10209 specification, the XSDT is optional in all cases, and the table manager
4850 10210 therefore now checks for both an RSDP >=2 and a valid XSDT pointer.
4851 -Otherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain
10211 +Otherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs
10212 +contain
4852 10213 only the RSDT.
4853 10214
4854 -Fixed an interpreter problem with the Mid() operator in the case of an input
4855 -string where the resulting output string is of zero length. It now correctly
10215 +Fixed an interpreter problem with the Mid() operator in the case of an
10216 +input
10217 +string where the resulting output string is of zero length. It now
10218 +correctly
4856 10219 returns a valid, null terminated string object instead of a string object
4857 10220 with a null pointer.
4858 10221
4859 -Fixed a problem with the control method argument handling to allow a store
4860 -to an Arg object that already contains an object of type Device. The Device
10222 +Fixed a problem with the control method argument handling to allow a
10223 +store
10224 +to an Arg object that already contains an object of type Device. The
10225 +Device
4861 10226 object is now correctly overwritten. Previously, an error was returned.
4862 10227
4863 10228
4864 -Enhanced the debugger Find command to emit object values in addition to the
4865 -found object pathnames. The output format is the same as the dump namespace
10229 +Enhanced the debugger Find command to emit object values in addition to
10230 +the
10231 +found object pathnames. The output format is the same as the dump
10232 +namespace
4866 10233 command.
4867 10234
4868 -Enhanced the debugger Set command. It now has the ability to set the value
4869 -of any Named integer object in the namespace (Previously, only method locals
10235 +Enhanced the debugger Set command. It now has the ability to set the
10236 +value
10237 +of any Named integer object in the namespace (Previously, only method
10238 +locals
4870 10239 and args could be set.)
4871 10240
4872 10241 Code and Data Size: Current and previous core subsystem library sizes are
4873 -shown below. These are the code and data sizes for the acpica.lib produced
10242 +shown below. These are the code and data sizes for the acpica.lib
10243 +produced
4874 10244 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
4875 10245 any ACPI driver or OSPM code. The debug version of the code includes the
4876 -debug output trace mechanism and has a much larger code and data size. Note
4877 -that these values will vary depending on the efficiency of the compiler and
10246 +debug output trace mechanism and has a much larger code and data size.
10247 +Note
10248 +that these values will vary depending on the efficiency of the compiler
10249 +and
4878 10250 the compiler options used during generation.
4879 10251
4880 10252 Previous Release:
4881 10253 Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total
4882 10254 Debug Version: 164.0K Code, 69.3K Data, 233.3K Total
4883 10255 Current Release:
4884 10256 Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total
4885 10257 Debug Version: 164.0K Code, 69.1K Data, 233.1K Total
4886 10258
4887 10259
4888 10260 2) iASL Compiler/Disassembler:
4889 10261
4890 -Fixed a regression in the disassembler where if/else/while constructs were
10262 +Fixed a regression in the disassembler where if/else/while constructs
10263 +were
4891 10264 output incorrectly. This problem was introduced in the previous release
4892 10265 (20050526). This problem also affected the single-step disassembly in the
4893 10266 debugger.
4894 10267
4895 -Fixed a problem where compiling the reserved _OSI method would randomly (but
10268 +Fixed a problem where compiling the reserved _OSI method would randomly
10269 +(but
4896 10270 rarely) produce compile errors.
4897 10271
4898 -Enhanced the disassembler to emit compilable code in the face of incorrect
10272 +Enhanced the disassembler to emit compilable code in the face of
10273 +incorrect
4899 10274 AML resource descriptors. If the optional ResourceSourceIndex is present,
4900 10275 but the ResourceSource is not, do not emit the ResourceSourceIndex in the
4901 10276 disassembly. Otherwise, the resulting code cannot be compiled without
4902 10277 errors.
4903 10278
4904 10279 ----------------------------------------
4905 10280 26 May 2005. Summary of changes for version 20050526:
4906 10281
4907 10282 1) ACPI CA Core Subsystem:
4908 10283
4909 10284 Implemented support to execute Type 1 and Type 2 AML opcodes appearing at
4910 -the module level (not within a control method.) These opcodes are executed
4911 -exactly once at the time the table is loaded. This type of code was legal up
4912 -until the release of ACPI 2.0B (2002) and is now supported within ACPI CA in
4913 -order to provide backwards compatibility with earlier BIOS implementations.
10285 +the module level (not within a control method.) These opcodes are
10286 +executed
10287 +exactly once at the time the table is loaded. This type of code was legal
10288 +up
10289 +until the release of ACPI 2.0B (2002) and is now supported within ACPI CA
10290 +in
10291 +order to provide backwards compatibility with earlier BIOS
10292 +implementations.
4914 10293 This eliminates the "Encountered executable code at module level" warning
4915 10294 that was previously generated upon detection of such code.
4916 10295
4917 10296 Fixed a problem in the interpreter where an AE_NOT_FOUND exception could
4918 10297 inadvertently be generated during the lookup of namespace objects in the
4919 -second pass parse of ACPI tables and control methods. It appears that this
4920 -problem could occur during the resolution of forward references to namespace
10298 +second pass parse of ACPI tables and control methods. It appears that
10299 +this
10300 +problem could occur during the resolution of forward references to
10301 +namespace
4921 10302 objects.
4922 10303
4923 10304 Added the ACPI_MUTEX_DEBUG #ifdef to the AcpiUtReleaseMutex function,
4924 10305 corresponding to the same #ifdef in the AcpiUtAcquireMutex function. This
4925 10306 allows the deadlock detection debug code to be compiled out in the normal
4926 10307 case, improving mutex performance (and overall subsystem performance)
4927 10308 considerably.
4928 10309
4929 10310 Implemented a handful of miscellaneous fixes for possible memory leaks on
4930 10311 error conditions and error handling control paths. These fixes were
4931 10312 suggested by FreeBSD and the Coverity Prevent source code analysis tool.
4932 10313
4933 -Added a check for a null RSDT pointer in AcpiGetFirmwareTable (tbxfroot.c)
10314 +Added a check for a null RSDT pointer in AcpiGetFirmwareTable
10315 +(tbxfroot.c)
4934 10316 to prevent a fault in this error case.
4935 10317
4936 10318 Code and Data Size: Current and previous core subsystem library sizes are
4937 -shown below. These are the code and data sizes for the acpica.lib produced
10319 +shown below. These are the code and data sizes for the acpica.lib
10320 +produced
4938 10321 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
4939 10322 any ACPI driver or OSPM code. The debug version of the code includes the
4940 -debug output trace mechanism and has a much larger code and data size. Note
4941 -that these values will vary depending on the efficiency of the compiler and
10323 +debug output trace mechanism and has a much larger code and data size.
10324 +Note
10325 +that these values will vary depending on the efficiency of the compiler
10326 +and
4942 10327 the compiler options used during generation.
4943 10328
4944 10329 Previous Release:
4945 10330 Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total
4946 10331 Debug Version: 163.7K Code, 69.3K Data, 233.0K Total
4947 10332 Current Release:
4948 10333 Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total
4949 10334 Debug Version: 164.0K Code, 69.3K Data, 233.3K Total
4950 10335
4951 10336
4952 10337 2) iASL Compiler/Disassembler:
4953 10338
4954 10339 Implemented support to allow Type 1 and Type 2 ASL operators to appear at
4955 10340 the module level (not within a control method.) These operators will be
4956 -executed once at the time the table is loaded. This type of code was legal
10341 +executed once at the time the table is loaded. This type of code was
10342 +legal
4957 10343 up until the release of ACPI 2.0B (2002) and is now supported by the iASL
4958 -compiler in order to provide backwards compatibility with earlier BIOS ASL
10344 +compiler in order to provide backwards compatibility with earlier BIOS
10345 +ASL
4959 10346 code.
4960 10347
4961 10348 The ACPI integer width (specified via the table revision ID or the -r
4962 -override, 32 or 64 bits) is now used internally during compile-time constant
10349 +override, 32 or 64 bits) is now used internally during compile-time
10350 +constant
4963 10351 folding to ensure that constants are truncated to 32 bits if necessary.
4964 -Previously, the revision ID value was only emitted in the AML table header.
10352 +Previously, the revision ID value was only emitted in the AML table
10353 +header.
4965 10354
4966 -An error message is now generated for the Mutex and Method operators if the
10355 +An error message is now generated for the Mutex and Method operators if
10356 +the
4967 10357 SyncLevel parameter is outside the legal range of 0 through 15.
4968 10358
4969 -Fixed a problem with the Method operator ParameterTypes list handling (ACPI
4970 -3.0). Previously, more than 2 types or 2 arguments generated a syntax error.
10359 +Fixed a problem with the Method operator ParameterTypes list handling
10360 +(ACPI
10361 +3.0). Previously, more than 2 types or 2 arguments generated a syntax
10362 +error.
4971 10363 The actual underlying implementation of method argument typechecking is
4972 10364 still under development, however.
4973 10365
4974 10366 ----------------------------------------
4975 10367 13 May 2005. Summary of changes for version 20050513:
4976 10368
4977 10369 1) ACPI CA Core Subsystem:
4978 10370
4979 -Implemented support for PCI Express root bridges -- added support for device
10371 +Implemented support for PCI Express root bridges -- added support for
10372 +device
4980 10373 PNP0A08 in the root bridge search within AcpiEvPciConfigRegionSetup.
4981 10374
4982 -The interpreter now automatically truncates incoming 64-bit constants to 32
4983 -bits if currently executing out of a 32-bit ACPI table (Revision < 2). This
10375 +The interpreter now automatically truncates incoming 64-bit constants to
10376 +32
10377 +bits if currently executing out of a 32-bit ACPI table (Revision < 2).
10378 +This
4984 10379 also affects the iASL compiler constant folding. (Note: as per below, the
4985 10380 iASL compiler no longer allows 64-bit constants within 32-bit tables.)
4986 10381
4987 10382 Fixed a problem where string and buffer objects with "static" pointers
4988 10383 (pointers to initialization data within an ACPI table) were not handled
4989 -consistently. The internal object copy operation now always copies the data
10384 +consistently. The internal object copy operation now always copies the
10385 +data
4990 10386 to a newly allocated buffer, regardless of whether the source object is
4991 10387 static or not.
4992 10388
4993 10389 Fixed a problem with the FromBCD operator where an implicit result
4994 -conversion was improperly performed while storing the result to the target
10390 +conversion was improperly performed while storing the result to the
10391 +target
4995 10392 operand. Since this is an "explicit conversion" operator, the implicit
4996 10393 conversion should never be performed on the output.
4997 10394
4998 10395 Fixed a problem with the CopyObject operator where a copy to an existing
4999 -named object did not always completely overwrite the existing object stored
5000 -at name. Specifically, a buffer-to-buffer copy did not delete the existing
10396 +named object did not always completely overwrite the existing object
10397 +stored
10398 +at name. Specifically, a buffer-to-buffer copy did not delete the
10399 +existing
5001 10400 buffer.
5002 10401
5003 -Replaced "InterruptLevel" with "InterruptNumber" in all GPE interfaces and
10402 +Replaced "InterruptLevel" with "InterruptNumber" in all GPE interfaces
10403 +and
5004 10404 structs for consistency.
5005 10405
5006 10406 Code and Data Size: Current and previous core subsystem library sizes are
5007 -shown below. These are the code and data sizes for the acpica.lib produced
10407 +shown below. These are the code and data sizes for the acpica.lib
10408 +produced
5008 10409 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5009 10410 any ACPI driver or OSPM code. The debug version of the code includes the
5010 -debug output trace mechanism and has a much larger code and data size. Note
5011 -that these values will vary depending on the efficiency of the compiler and
10411 +debug output trace mechanism and has a much larger code and data size.
10412 +Note
10413 +that these values will vary depending on the efficiency of the compiler
10414 +and
5012 10415 the compiler options used during generation.
5013 10416
5014 10417 Previous Release:
5015 10418 Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total
5016 10419 Debug Version: 163.7K Code, 69.3K Data, 233.0K Total
5017 10420 Current Release: (Same sizes)
5018 10421 Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total
5019 10422 Debug Version: 163.7K Code, 69.3K Data, 233.0K Total
5020 10423
5021 10424
5022 10425 2) iASL Compiler/Disassembler:
5023 10426
5024 -The compiler now emits a warning if an attempt is made to generate a 64-bit
5025 -integer constant from within a 32-bit ACPI table (Revision < 2). The integer
10427 +The compiler now emits a warning if an attempt is made to generate a 64-
10428 +bit
10429 +integer constant from within a 32-bit ACPI table (Revision < 2). The
10430 +integer
5026 10431 is truncated to 32 bits.
5027 10432
5028 10433 Fixed a problem with large package objects: if the static length of the
5029 10434 package is greater than 255, the "variable length package" opcode is
5030 10435 emitted. Previously, this caused an error. This requires an update to the
5031 -ACPI spec, since it currently (incorrectly) states that packages larger than
10436 +ACPI spec, since it currently (incorrectly) states that packages larger
10437 +than
5032 10438 255 elements are not allowed.
5033 10439
5034 -The disassembler now correctly handles variable length packages and packages
10440 +The disassembler now correctly handles variable length packages and
10441 +packages
5035 10442 larger than 255 elements.
5036 10443
5037 10444 ----------------------------------------
5038 10445 08 April 2005. Summary of changes for version 20050408:
5039 10446
5040 10447 1) ACPI CA Core Subsystem:
5041 10448
5042 10449 Fixed three cases in the interpreter where an "index" argument to an ASL
5043 10450 function was still (internally) 32 bits instead of the required 64 bits.
5044 10451 This was the Index argument to the Index, Mid, and Match operators.
5045 10452
5046 -The "strupr" function is now permanently local (AcpiUtStrupr), since this is
10453 +The "strupr" function is now permanently local (AcpiUtStrupr), since this
10454 +is
5047 10455 not a POSIX-defined function and not present in most kernel-level C
5048 -libraries. All references to the C library strupr function have been removed
10456 +libraries. All references to the C library strupr function have been
10457 +removed
5049 10458 from the headers.
5050 10459
5051 -Completed the deployment of static functions/prototypes. All prototypes with
5052 -the static attribute have been moved from the headers to the owning C file.
10460 +Completed the deployment of static functions/prototypes. All prototypes
10461 +with
10462 +the static attribute have been moved from the headers to the owning C
10463 +file.
5053 10464
5054 10465 Implemented an extract option (-e) for the AcpiBin utility (AML binary
5055 -utility). This option allows the utility to extract individual ACPI tables
10466 +utility). This option allows the utility to extract individual ACPI
10467 +tables
5056 10468 from the output of AcpiDmp. It provides the same functionality of the
5057 10469 acpixtract.pl perl script without the worry of setting the correct perl
5058 -options. AcpiBin runs on Windows and has not yet been generated/validated in
10470 +options. AcpiBin runs on Windows and has not yet been generated/validated
10471 +in
5059 10472 the Linux/Unix environment (but should be soon).
5060 10473
5061 10474 Updated and fixed the table dump option for AcpiBin (-d). This option
5062 -converts a single ACPI table to a hex/ascii file, similar to the output of
10475 +converts a single ACPI table to a hex/ascii file, similar to the output
10476 +of
5063 10477 AcpiDmp.
5064 10478
5065 10479 Code and Data Size: Current and previous core subsystem library sizes are
5066 -shown below. These are the code and data sizes for the acpica.lib produced
10480 +shown below. These are the code and data sizes for the acpica.lib
10481 +produced
5067 10482 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5068 10483 any ACPI driver or OSPM code. The debug version of the code includes the
5069 -debug output trace mechanism and has a much larger code and data size. Note
5070 -that these values will vary depending on the efficiency of the compiler and
10484 +debug output trace mechanism and has a much larger code and data size.
10485 +Note
10486 +that these values will vary depending on the efficiency of the compiler
10487 +and
5071 10488 the compiler options used during generation.
5072 10489
5073 10490 Previous Release:
5074 10491 Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total
5075 10492 Debug Version: 163.5K Code, 69.3K Data, 232.8K Total
5076 10493 Current Release:
5077 10494 Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total
5078 10495 Debug Version: 163.7K Code, 69.3K Data, 233.0K Total
5079 10496
5080 10497
5081 10498 2) iASL Compiler/Disassembler:
5082 10499
5083 -Disassembler fix: Added a check to ensure that the table length found in the
5084 -ACPI table header within the input file is not longer than the actual input
10500 +Disassembler fix: Added a check to ensure that the table length found in
10501 +the
10502 +ACPI table header within the input file is not longer than the actual
10503 +input
5085 10504 file size. This indicates some kind of file or table corruption.
5086 10505
5087 10506 ----------------------------------------
5088 10507 29 March 2005. Summary of changes for version 20050329:
5089 10508
5090 10509 1) ACPI CA Core Subsystem:
5091 10510
5092 -An error is now generated if an attempt is made to create a Buffer Field of
10511 +An error is now generated if an attempt is made to create a Buffer Field
10512 +of
5093 10513 length zero (A CreateField with a length operand of zero.)
5094 10514
5095 -The interpreter now issues a warning whenever executable code at the module
10515 +The interpreter now issues a warning whenever executable code at the
10516 +module
5096 10517 level is detected during ACPI table load. This will give some idea of the
5097 10518 prevalence of this type of code.
5098 10519
5099 10520 Implemented support for references to named objects (other than control
5100 10521 methods) within package objects.
5101 10522
5102 -Enhanced package object output for the debug object. Package objects are now
10523 +Enhanced package object output for the debug object. Package objects are
10524 +now
5103 10525 completely dumped, showing all elements.
5104 10526
5105 10527 Enhanced miscellaneous object output for the debug object. Any object can
5106 10528 now be written to the debug object (for example, a device object can be
5107 10529 written, and the type of the object will be displayed.)
5108 10530
5109 -The "static" qualifier has been added to all local functions across both the
10531 +The "static" qualifier has been added to all local functions across both
10532 +the
5110 10533 core subsystem and the iASL compiler.
5111 10534
5112 10535 The number of "long" lines (> 80 chars) within the source has been
5113 10536 significantly reduced, by about 1/3.
5114 10537
5115 10538 Cleaned up all header files to ensure that all CA/iASL functions are
5116 10539 prototyped (even static functions) and the formatting is consistent.
5117 10540
5118 10541 Two new header files have been added, acopcode.h and acnames.h.
5119 10542
5120 10543 Removed several obsolete functions that were no longer used.
5121 10544
5122 10545 Code and Data Size: Current and previous core subsystem library sizes are
5123 -shown below. These are the code and data sizes for the acpica.lib produced
10546 +shown below. These are the code and data sizes for the acpica.lib
10547 +produced
5124 10548 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5125 10549 any ACPI driver or OSPM code. The debug version of the code includes the
5126 -debug output trace mechanism and has a much larger code and data size. Note
5127 -that these values will vary depending on the efficiency of the compiler and
10550 +debug output trace mechanism and has a much larger code and data size.
10551 +Note
10552 +that these values will vary depending on the efficiency of the compiler
10553 +and
5128 10554 the compiler options used during generation.
5129 10555
5130 10556 Previous Release:
5131 10557 Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
5132 10558 Debug Version: 165.4K Code, 69.7K Data, 236.1K Total
5133 10559 Current Release:
5134 10560 Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total
5135 10561 Debug Version: 163.5K Code, 69.3K Data, 232.8K Total
5136 10562
5137 10563
5138 10564
5139 10565 2) iASL Compiler/Disassembler:
5140 10566
5141 10567 Fixed a problem with the resource descriptor generation/support. For the
5142 -ResourceSourceIndex and the ResourceSource fields, both must be present, or
10568 +ResourceSourceIndex and the ResourceSource fields, both must be present,
10569 +or
5143 10570 both must be not present - can't have one without the other.
5144 10571
5145 -The compiler now returns non-zero from the main procedure if any errors have
10572 +The compiler now returns non-zero from the main procedure if any errors
10573 +have
5146 10574 occurred during the compilation.
5147 10575
5148 10576
5149 10577 ----------------------------------------
5150 10578 09 March 2005. Summary of changes for version 20050309:
5151 10579
5152 10580 1) ACPI CA Core Subsystem:
5153 10581
5154 -The string-to-buffer implicit conversion code has been modified again after
5155 -a change to the ACPI specification. In order to match the behavior of the
5156 -other major ACPI implementation, the target buffer is no longer truncated if
10582 +The string-to-buffer implicit conversion code has been modified again
10583 +after
10584 +a change to the ACPI specification. In order to match the behavior of
10585 +the
10586 +other major ACPI implementation, the target buffer is no longer truncated
10587 +if
5157 10588 the source string is smaller than an existing target buffer. This change
5158 10589 requires an update to the ACPI spec, and should eliminate the recent
5159 10590 AE_AML_BUFFER_LIMIT issues.
5160 10591
5161 -The "implicit return" support was rewritten to a new algorithm that solves
5162 -the general case. Rather than attempt to determine when a method is about to
5163 -exit, the result of every ASL operator is saved momentarily until the very
10592 +The "implicit return" support was rewritten to a new algorithm that
10593 +solves
10594 +the general case. Rather than attempt to determine when a method is about
10595 +to
10596 +exit, the result of every ASL operator is saved momentarily until the
10597 +very
5164 10598 next ASL operator is executed. Therefore, no matter how the method exits,
5165 10599 there will always be a saved implicit return value. This feature is only
5166 -enabled with the AcpiGbl_EnableInterpreterSlack flag, and should eliminate
10600 +enabled with the AcpiGbl_EnableInterpreterSlack flag, and should
10601 +eliminate
5167 10602 AE_AML_NO_RETURN_VALUE errors when enabled.
5168 10603
5169 -Implemented implicit conversion support for the predicate (operand) of the
5170 -If, Else, and While operators. String and Buffer arguments are automatically
10604 +Implemented implicit conversion support for the predicate (operand) of
10605 +the
10606 +If, Else, and While operators. String and Buffer arguments are
10607 +automatically
5171 10608 converted to Integers.
5172 10609
5173 10610 Changed the string-to-integer conversion behavior to match the new ACPI
5174 10611 errata: "If no integer object exists, a new integer is created. The ASCII
5175 10612 string is interpreted as a hexadecimal constant. Each string character is
5176 10613 interpreted as a hexadecimal value ('0'-'9', 'A'-'F', 'a', 'f'), starting
5177 -with the first character as the most significant digit, and ending with the
5178 -first non-hexadecimal character or end-of-string." This means that the first
10614 +with the first character as the most significant digit, and ending with
10615 +the
10616 +first non-hexadecimal character or end-of-string." This means that the
10617 +first
5179 10618 non-hex character terminates the conversion and this is the code that was
5180 10619 changed.
5181 10620
5182 -Fixed a problem where the ObjectType operator would fail (fault) when used
10621 +Fixed a problem where the ObjectType operator would fail (fault) when
10622 +used
5183 10623 on an Index of a Package which pointed to a null package element. The
5184 10624 operator now properly returns zero (Uninitialized) in this case.
5185 10625
5186 10626 Fixed a problem where the While operator used excessive memory by not
5187 -properly popping the result stack during execution. There was no memory leak
10627 +properly popping the result stack during execution. There was no memory
10628 +leak
5188 10629 after execution, however. (Code provided by Valery Podrezov.)
5189 10630
5190 -Fixed a problem where references to control methods within Package objects
10631 +Fixed a problem where references to control methods within Package
10632 +objects
5191 10633 caused the method to be invoked, instead of producing a reference object
5192 10634 pointing to the method.
5193 10635
5194 -Restructured and simplified the pswalk.c module (AcpiPsDeleteParseTree) to
10636 +Restructured and simplified the pswalk.c module (AcpiPsDeleteParseTree)
10637 +to
5195 10638 improve performance and reduce code size. (Code provided by Alexey
5196 10639 Starikovskiy.)
5197 10640
5198 10641 Code and Data Size: Current and previous core subsystem library sizes are
5199 -shown below. These are the code and data sizes for the acpica.lib produced
10642 +shown below. These are the code and data sizes for the acpica.lib
10643 +produced
5200 10644 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5201 10645 any ACPI driver or OSPM code. The debug version of the code includes the
5202 -debug output trace mechanism and has a much larger code and data size. Note
5203 -that these values will vary depending on the efficiency of the compiler and
10646 +debug output trace mechanism and has a much larger code and data size.
10647 +Note
10648 +that these values will vary depending on the efficiency of the compiler
10649 +and
5204 10650 the compiler options used during generation.
5205 10651
5206 10652 Previous Release:
5207 10653 Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
5208 10654 Debug Version: 165.4K Code, 69.6K Data, 236.0K Total
5209 10655 Current Release:
5210 10656 Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
5211 10657 Debug Version: 165.4K Code, 69.7K Data, 236.1K Total
5212 10658
5213 10659
5214 10660 2) iASL Compiler/Disassembler:
5215 10661
5216 10662 Fixed a problem with the Return operator with no arguments. Since the AML
5217 -grammar for the byte encoding requires an operand for the Return opcode, the
10663 +grammar for the byte encoding requires an operand for the Return opcode,
10664 +the
5218 10665 compiler now emits a Return(Zero) for this case. An ACPI specification
5219 10666 update has been written for this case.
5220 10667
5221 10668 For tables other than the DSDT, namepath optimization is automatically
5222 -disabled. This is because SSDTs can be loaded anywhere in the namespace, the
10669 +disabled. This is because SSDTs can be loaded anywhere in the namespace,
10670 +the
5223 10671 compiler has no knowledge of where, and thus cannot optimize namepaths.
5224 10672
5225 10673 Added "ProcessorObj" to the ObjectTypeKeyword list. This object type was
5226 10674 inadvertently omitted from the ACPI specification, and will require an
5227 10675 update to the spec.
5228 10676
5229 -The source file scan for ASCII characters is now optional (-a). This change
10677 +The source file scan for ASCII characters is now optional (-a). This
10678 +change
5230 10679 was made because some vendors place non-ascii characters within comments.
5231 10680 However, the scan is simply a brute-force byte compare to ensure all
5232 10681 characters in the file are in the range 0x00 to 0x7F.
5233 10682
5234 10683 Fixed a problem with the CondRefOf operator where the compiler was
5235 -inappropriately checking for the existence of the target. Since the point of
10684 +inappropriately checking for the existence of the target. Since the point
10685 +of
5236 10686 the operator is to check for the existence of the target at run-time, the
5237 10687 compiler no longer checks for the target existence.
5238 10688
5239 10689 Fixed a problem where errors generated from the internal AML interpreter
5240 10690 during constant folding were not handled properly, causing a fault.
5241 10691
5242 10692 Fixed a problem with overly aggressive range checking for the Stall
5243 -operator. The valid range (max 255) is now only checked if the operand is of
10693 +operator. The valid range (max 255) is now only checked if the operand is
10694 +of
5244 10695 type Integer. All other operand types cannot be statically checked.
5245 10696
5246 -Fixed a problem where control method references within the RefOf, DeRefOf,
5247 -and ObjectType operators were not treated properly. They are now treated as
10697 +Fixed a problem where control method references within the RefOf,
10698 +DeRefOf,
10699 +and ObjectType operators were not treated properly. They are now treated
10700 +as
5248 10701 actual references, not method invocations.
5249 10702
5250 -Fixed and enhanced the "list namespace" option (-ln). This option was broken
10703 +Fixed and enhanced the "list namespace" option (-ln). This option was
10704 +broken
5251 10705 a number of releases ago.
5252 10706
5253 -Improved error handling for the Field, IndexField, and BankField operators.
10707 +Improved error handling for the Field, IndexField, and BankField
10708 +operators.
5254 10709 The compiler now cleanly reports and recovers from errors in the field
5255 10710 component (FieldUnit) list.
5256 10711
5257 10712 Fixed a disassembler problem where the optional ResourceDescriptor fields
5258 10713 TRS and TTP were not always handled correctly.
5259 10714
5260 10715 Disassembler - Comments in output now use "//" instead of "/*"
5261 10716
5262 10717 ----------------------------------------
5263 10718 28 February 2005. Summary of changes for version 20050228:
5264 10719
5265 10720 1) ACPI CA Core Subsystem:
5266 10721
5267 10722 Fixed a problem where the result of an Index() operator (an object
5268 -reference) must increment the reference count on the target object for the
10723 +reference) must increment the reference count on the target object for
10724 +the
5269 10725 life of the object reference.
5270 10726
5271 10727 Implemented AML Interpreter and Debugger support for the new ACPI 3.0
5272 -Extended Address (IO, Memory, Space), QwordSpace, DwordSpace, and WordSpace
10728 +Extended Address (IO, Memory, Space), QwordSpace, DwordSpace, and
10729 +WordSpace
5273 10730 resource descriptors.
5274 10731
5275 10732 Implemented support in the _OSI method for the ACPI 3.0 "Extended Address
5276 -Space Descriptor" string, indicating interpreter support for the descriptors
10733 +Space Descriptor" string, indicating interpreter support for the
10734 +descriptors
5277 10735 above.
5278 10736
5279 10737 Implemented header support for the new ACPI 3.0 FADT flag bits.
5280 10738
5281 -Implemented header support for the new ACPI 3.0 PCI Express bits for the PM1
10739 +Implemented header support for the new ACPI 3.0 PCI Express bits for the
10740 +PM1
5282 10741 status/enable registers.
5283 10742
5284 10743 Updated header support for the MADT processor local Apic struct and MADT
5285 10744 platform interrupt source struct for new ACPI 3.0 fields.
5286 10745
5287 10746 Implemented header support for the SRAT and SLIT ACPI tables.
5288 10747
5289 -Implemented the -s switch in AcpiExec to enable the "InterpreterSlack" flag
10748 +Implemented the -s switch in AcpiExec to enable the "InterpreterSlack"
10749 +flag
5290 10750 at runtime.
5291 10751
5292 10752 Code and Data Size: Current and previous core subsystem library sizes are
5293 -shown below. These are the code and data sizes for the acpica.lib produced
10753 +shown below. These are the code and data sizes for the acpica.lib
10754 +produced
5294 10755 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5295 10756 any ACPI driver or OSPM code. The debug version of the code includes the
5296 -debug output trace mechanism and has a much larger code and data size. Note
5297 -that these values will vary depending on the efficiency of the compiler and
10757 +debug output trace mechanism and has a much larger code and data size.
10758 +Note
10759 +that these values will vary depending on the efficiency of the compiler
10760 +and
5298 10761 the compiler options used during generation.
5299 10762
5300 10763 Previous Release:
5301 10764 Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total
5302 10765 Debug Version: 164.9K Code, 69.2K Data, 234.1K Total
5303 10766 Current Release:
5304 10767 Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
5305 10768 Debug Version: 165.4K Code, 69.6K Data, 236.0K Total
5306 10769
5307 10770
5308 10771 2) iASL Compiler/Disassembler:
5309 10772
5310 -Fixed a problem with the internal 64-bit String-to-integer conversion with
10773 +Fixed a problem with the internal 64-bit String-to-integer conversion
10774 +with
5311 10775 strings less than two characters long.
5312 10776
5313 10777 Fixed a problem with constant folding where the result of the Index()
5314 -operator can not be considered a constant. This means that Index() cannot be
10778 +operator can not be considered a constant. This means that Index() cannot
10779 +be
5315 10780 a type3 opcode and this will require an update to the ACPI specification.
5316 10781
5317 10782 Disassembler: Implemented support for the TTP, MTP, and TRS resource
5318 -descriptor fields. These fields were inadvertently ignored and not output in
10783 +descriptor fields. These fields were inadvertently ignored and not output
10784 +in
5319 10785 the disassembly of the resource descriptor.
5320 10786
5321 10787
5322 10788 ----------------------------------------
5323 10789 11 February 2005. Summary of changes for version 20050211:
5324 10790
5325 10791 1) ACPI CA Core Subsystem:
5326 10792
5327 10793 Implemented ACPI 3.0 support for implicit conversion within the Match()
5328 -operator. MatchObjects can now be of type integer, buffer, or string instead
5329 -of just type integer. Package elements are implicitly converted to the type
10794 +operator. MatchObjects can now be of type integer, buffer, or string
10795 +instead
10796 +of just type integer. Package elements are implicitly converted to the
10797 +type
5330 10798 of the MatchObject. This change aligns the behavior of Match() with the
5331 -behavior of the other logical operators (LLess(), etc.) It also requires an
10799 +behavior of the other logical operators (LLess(), etc.) It also requires
10800 +an
5332 10801 errata change to the ACPI specification as this support was intended for
5333 10802 ACPI 3.0, but was inadvertently omitted.
5334 10803
5335 -Fixed a problem with the internal implicit "to buffer" conversion. Strings
5336 -that are converted to buffers will cause buffer truncation if the string is
5337 -smaller than the target buffer. Integers that are converted to buffers will
10804 +Fixed a problem with the internal implicit "to buffer" conversion.
10805 +Strings
10806 +that are converted to buffers will cause buffer truncation if the string
10807 +is
10808 +smaller than the target buffer. Integers that are converted to buffers
10809 +will
5338 10810 not cause buffer truncation, only zero extension (both as per the ACPI
5339 10811 spec.) The problem was introduced when code was added to truncate the
5340 -buffer, but this should not be performed in all cases, only the string case.
10812 +buffer, but this should not be performed in all cases, only the string
10813 +case.
5341 10814
5342 -Fixed a problem with the Buffer and Package operators where the interpreter
10815 +Fixed a problem with the Buffer and Package operators where the
10816 +interpreter
5343 10817 would get confused if two such operators were used as operands to an ASL
5344 10818 operator (such as LLess(Buffer(1){0},Buffer(1){1}). The internal result
5345 -stack was not being popped after the execution of these operators, resulting
10819 +stack was not being popped after the execution of these operators,
10820 +resulting
5346 10821 in an AE_NO_RETURN_VALUE exception.
5347 10822
5348 10823 Fixed a problem with constructs of the form Store(Index(...),...). The
5349 -reference object returned from Index was inadvertently resolved to an actual
5350 -value. This problem was introduced in version 20050114 when the behavior of
10824 +reference object returned from Index was inadvertently resolved to an
10825 +actual
10826 +value. This problem was introduced in version 20050114 when the behavior
10827 +of
5351 10828 Store() was modified to restrict the object types that can be used as the
5352 10829 source operand (to match the ACPI specification.)
5353 10830
5354 10831 Reduced excessive stack use within the AcpiGetObjectInfo procedure.
5355 10832
5356 10833 Added a fix to aclinux.h to allow generation of AcpiExec on Linux.
5357 10834
5358 10835 Updated the AcpiSrc utility to add the FADT_DESCRIPTOR_REV2_MINUS struct.
5359 10836
5360 10837 Code and Data Size: Current and previous core subsystem library sizes are
5361 -shown below. These are the code and data sizes for the acpica.lib produced
10838 +shown below. These are the code and data sizes for the acpica.lib
10839 +produced
5362 10840 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5363 10841 any ACPI driver or OSPM code. The debug version of the code includes the
5364 -debug output trace mechanism and has a much larger code and data size. Note
5365 -that these values will vary depending on the efficiency of the compiler and
10842 +debug output trace mechanism and has a much larger code and data size.
10843 +Note
10844 +that these values will vary depending on the efficiency of the compiler
10845 +and
5366 10846 the compiler options used during generation.
5367 10847
5368 10848 Previous Release:
5369 10849 Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total
5370 10850 Debug Version: 164.8K Code, 69.2K Data, 234.0K Total
5371 10851 Current Release:
5372 10852 Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total
5373 10853 Debug Version: 164.9K Code, 69.2K Data, 234.1K Total
5374 10854
5375 10855
5376 10856 2) iASL Compiler/Disassembler:
5377 10857
5378 10858 Fixed a code generation problem in the constant folding optimization code
5379 10859 where incorrect code was generated if a constant was reduced to a buffer
5380 10860 object (i.e., a reduced type 5 opcode.)
5381 10861
5382 10862 Fixed a typechecking problem for the ToBuffer operator. Caused by an
5383 10863 incorrect return type in the internal opcode information table.
5384 10864
5385 10865 ----------------------------------------
5386 10866 25 January 2005. Summary of changes for version 20050125:
|
↓ open down ↓ |
11 lines elided |
↑ open up ↑ |
5387 10867
5388 10868 1) ACPI CA Core Subsystem:
5389 10869
5390 10870 Fixed a recently introduced problem with the Global Lock where the
5391 10871 underlying semaphore was not created. This problem was introduced in
5392 10872 version 20050114, and caused an AE_AML_NO_OPERAND exception during an
5393 10873 Acquire() operation on _GL.
5394 10874
5395 10875 The local object cache is now optional, and is disabled by default. Both
5396 10876 AcpiExec and the iASL compiler enable the cache because they run in user
5397 -mode and this enhances their performance. #define ACPI_ENABLE_OBJECT_CACHE
10877 +mode and this enhances their performance. #define
10878 +ACPI_ENABLE_OBJECT_CACHE
5398 10879 to enable the local cache.
5399 10880
5400 -Fixed an issue in the internal function AcpiUtEvaluateObject concerning the
5401 -optional "implicit return" support where an error was returned if no return
5402 -object was expected, but one was implicitly returned. AE_OK is now returned
10881 +Fixed an issue in the internal function AcpiUtEvaluateObject concerning
10882 +the
10883 +optional "implicit return" support where an error was returned if no
10884 +return
10885 +object was expected, but one was implicitly returned. AE_OK is now
10886 +returned
5403 10887 in this case and the implicitly returned object is deleted.
5404 -AcpiUtEvaluateObject is only occasionally used, and only to execute reserved
10888 +AcpiUtEvaluateObject is only occasionally used, and only to execute
10889 +reserved
5405 10890 methods such as _STA and _INI where the return type is known up front.
5406 10891
5407 -Fixed a few issues with the internal convert-to-integer code. It now returns
10892 +Fixed a few issues with the internal convert-to-integer code. It now
10893 +returns
5408 10894 an error if an attempt is made to convert a null string, a string of only
5409 -blanks/tabs, or a zero-length buffer. This affects both implicit conversion
10895 +blanks/tabs, or a zero-length buffer. This affects both implicit
10896 +conversion
5410 10897 and explicit conversion via the ToInteger() operator.
5411 10898
5412 -The internal debug code in AcpiUtAcquireMutex has been commented out. It is
5413 -not needed for normal operation and should increase the performance of the
5414 -entire subsystem. The code remains in case it is needed for debug purposes
10899 +The internal debug code in AcpiUtAcquireMutex has been commented out. It
10900 +is
10901 +not needed for normal operation and should increase the performance of
10902 +the
10903 +entire subsystem. The code remains in case it is needed for debug
10904 +purposes
5415 10905 again.
5416 10906
5417 -The AcpiExec source and makefile are included in the Unix/Linux package for
10907 +The AcpiExec source and makefile are included in the Unix/Linux package
10908 +for
5418 10909 the first time.
5419 10910
5420 10911 Code and Data Size: Current and previous core subsystem library sizes are
5421 -shown below. These are the code and data sizes for the acpica.lib produced
10912 +shown below. These are the code and data sizes for the acpica.lib
10913 +produced
5422 10914 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5423 10915 any ACPI driver or OSPM code. The debug version of the code includes the
5424 -debug output trace mechanism and has a much larger code and data size. Note
5425 -that these values will vary depending on the efficiency of the compiler and
10916 +debug output trace mechanism and has a much larger code and data size.
10917 +Note
10918 +that these values will vary depending on the efficiency of the compiler
10919 +and
5426 10920 the compiler options used during generation.
5427 10921
5428 10922 Previous Release:
5429 10923 Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total
5430 10924 Debug Version: 165.4K Code, 69.4K Data, 234.8K Total
5431 10925 Current Release:
5432 10926 Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total
5433 10927 Debug Version: 164.8K Code, 69.2K Data, 234.0K Total
5434 10928
5435 10929 2) iASL Compiler/Disassembler:
5436 10930
5437 -Switch/Case support: A warning is now issued if the type of the Switch value
10931 +Switch/Case support: A warning is now issued if the type of the Switch
10932 +value
5438 10933 cannot be determined at compile time. For example, Switch(Arg0) will
5439 -generate the warning, and the type is assumed to be an integer. As per the
5440 -ACPI spec, use a construct such as Switch(ToInteger(Arg0)) to eliminate the
10934 +generate the warning, and the type is assumed to be an integer. As per
10935 +the
10936 +ACPI spec, use a construct such as Switch(ToInteger(Arg0)) to eliminate
10937 +the
5441 10938 warning.
5442 10939
5443 10940 Switch/Case support: Implemented support for buffer and string objects as
5444 10941 the switch value. This is an ACPI 3.0 feature, now that LEqual supports
5445 10942 buffers and strings.
5446 10943
5447 -Switch/Case support: The emitted code for the LEqual() comparisons now uses
5448 -the switch value as the first operand, not the second. The case value is now
10944 +Switch/Case support: The emitted code for the LEqual() comparisons now
10945 +uses
10946 +the switch value as the first operand, not the second. The case value is
10947 +now
5449 10948 the second operand, and this allows the case value to be implicitly
5450 10949 converted to the type of the switch value, not the other way around.
5451 10950
5452 -Switch/Case support: Temporary variables are now emitted immediately within
5453 -the control method, not at the global level. This means that there are now
5454 -36 temps available per-method, not 36 temps per-module as was the case with
10951 +Switch/Case support: Temporary variables are now emitted immediately
10952 +within
10953 +the control method, not at the global level. This means that there are
10954 +now
10955 +36 temps available per-method, not 36 temps per-module as was the case
10956 +with
5455 10957 the earlier implementation (_T_0 through _T_9 and _T_A through _T_Z.)
5456 10958
5457 10959 ----------------------------------------
5458 10960 14 January 2005. Summary of changes for version 20050114:
5459 10961
5460 10962 Added 2005 copyright to all module headers. This affects every module in
5461 10963 the core subsystem, iASL compiler, and the utilities.
5462 10964
5463 10965 1) ACPI CA Core Subsystem:
5464 10966
5465 10967 Fixed an issue with the String-to-Buffer conversion code where the string
5466 -null terminator was not included in the buffer after conversion, but there
5467 -is existing ASL that assumes the string null terminator is included. This is
10968 +null terminator was not included in the buffer after conversion, but
10969 +there
10970 +is existing ASL that assumes the string null terminator is included. This
10971 +is
5468 10972 the root of the ACPI_AML_BUFFER_LIMIT regression. This problem was
5469 10973 introduced in the previous version when the code was updated to correctly
5470 -set the converted buffer size as per the ACPI specification. The ACPI spec
5471 -is ambiguous and will be updated to specify that the null terminator must be
10974 +set the converted buffer size as per the ACPI specification. The ACPI
10975 +spec
10976 +is ambiguous and will be updated to specify that the null terminator must
10977 +be
5472 10978 included in the converted buffer. This also affects the ToBuffer() ASL
5473 10979 operator.
5474 10980
5475 10981 Fixed a problem with the Mid() ASL/AML operator where it did not work
5476 -correctly on Buffer objects. Newly created sub-buffers were not being marked
10982 +correctly on Buffer objects. Newly created sub-buffers were not being
10983 +marked
5477 10984 as initialized.
5478 10985
5479 10986
5480 10987 Fixed a problem in AcpiTbFindTable where incorrect string compares were
5481 -performed on the OemId and OemTableId table header fields. These fields are
10988 +performed on the OemId and OemTableId table header fields. These fields
10989 +are
5482 10990 not null terminated, so strncmp is now used instead of strcmp.
5483 10991
5484 10992 Implemented a restriction on the Store() ASL/AML operator to align the
5485 -behavior with the ACPI specification. Previously, any object could be used
5486 -as the source operand. Now, the only objects that may be used are Integers,
10993 +behavior with the ACPI specification. Previously, any object could be
10994 +used
10995 +as the source operand. Now, the only objects that may be used are
10996 +Integers,
5487 10997 Buffers, Strings, Packages, Object References, and DDB Handles. If
5488 10998 necessary, the original behavior can be restored by enabling the
5489 10999 EnableInterpreterSlack flag.
5490 11000
5491 -Enhanced the optional "implicit return" support to allow an implicit return
11001 +Enhanced the optional "implicit return" support to allow an implicit
11002 +return
5492 11003 value from methods that are invoked externally via the AcpiEvaluateObject
5493 11004 interface. This enables implicit returns from the _STA and _INI methods,
5494 11005 for example.
5495 11006
5496 -Changed the Revision() ASL/AML operator to return the current version of the
5497 -AML interpreter, in the YYYYMMDD format. Previously, it incorrectly returned
11007 +Changed the Revision() ASL/AML operator to return the current version of
11008 +the
11009 +AML interpreter, in the YYYYMMDD format. Previously, it incorrectly
11010 +returned
5498 11011 the supported ACPI version (This is the function of the _REV method).
5499 11012
5500 -Updated the _REV predefined method to return the currently supported version
11013 +Updated the _REV predefined method to return the currently supported
11014 +version
5501 11015 of ACPI, now 3.
5502 11016
5503 11017 Implemented batch mode option for the AcpiExec utility (-b).
5504 11018
5505 11019 Code and Data Size: Current and previous core subsystem library sizes are
5506 -shown below. These are the code and data sizes for the acpica.lib produced
11020 +shown below. These are the code and data sizes for the acpica.lib
11021 +produced
5507 11022 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5508 11023 any ACPI driver or OSPM code. The debug version of the code includes the
5509 -debug output trace mechanism and has a much larger code and data size. Note
5510 -that these values will vary depending on the efficiency of the compiler and
11024 +debug output trace mechanism and has a much larger code and data size.
11025 +Note
11026 +that these values will vary depending on the efficiency of the compiler
11027 +and
5511 11028 the compiler options used during generation.
5512 11029
5513 11030 Previous Release:
5514 11031 Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
5515 11032 Debug Version: 165.3K Code, 69.4K Data, 234.7K Total
5516 11033 Current Release:
5517 11034 Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total
5518 11035 Debug Version: 165.4K Code, 69.4K Data, 234.8K Total
5519 11036
5520 11037 ----------------------------------------
5521 11038 10 December 2004. Summary of changes for version 20041210:
5522 11039
5523 11040 ACPI 3.0 support is nearing completion in both the iASL compiler and the
5524 11041 ACPI CA core subsystem.
5525 11042
5526 11043 1) ACPI CA Core Subsystem:
5527 11044
5528 -Fixed a problem in the ToDecimalString operator where the resulting string
11045 +Fixed a problem in the ToDecimalString operator where the resulting
11046 +string
5529 11047 length was incorrectly calculated. The length is now calculated exactly,
5530 11048 eliminating incorrect AE_STRING_LIMIT exceptions.
5531 11049
5532 -Fixed a problem in the ToHexString operator to allow a maximum 200 character
11050 +Fixed a problem in the ToHexString operator to allow a maximum 200
11051 +character
5533 11052 string to be produced.
5534 11053
5535 -Fixed a problem in the internal string-to-buffer and buffer-to-buffer copy
11054 +Fixed a problem in the internal string-to-buffer and buffer-to-buffer
11055 +copy
5536 11056 routine where the length of the resulting buffer was not truncated to the
5537 11057 new size (if the target buffer already existed).
5538 11058
5539 11059 Code and Data Size: Current and previous core subsystem library sizes are
5540 -shown below. These are the code and data sizes for the acpica.lib produced
11060 +shown below. These are the code and data sizes for the acpica.lib
11061 +produced
5541 11062 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5542 11063 any ACPI driver or OSPM code. The debug version of the code includes the
5543 -debug output trace mechanism and has a much larger code and data size. Note
5544 -that these values will vary depending on the efficiency of the compiler and
11064 +debug output trace mechanism and has a much larger code and data size.
11065 +Note
11066 +that these values will vary depending on the efficiency of the compiler
11067 +and
5545 11068 the compiler options used during generation.
5546 11069
5547 11070 Previous Release:
5548 11071 Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
5549 11072 Debug Version: 164.7K Code, 68.5K Data, 233.2K Total
5550 11073 Current Release:
5551 11074 Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
5552 11075 Debug Version: 165.3K Code, 69.4K Data, 234.7K Total
5553 11076
5554 11077
5555 11078 2) iASL Compiler/Disassembler:
5556 11079
5557 11080 Implemented the new ACPI 3.0 resource template macros - DWordSpace,
5558 11081 ExtendedIO, ExtendedMemory, ExtendedSpace, QWordSpace, and WordSpace.
5559 11082 Includes support in the disassembler.
5560 11083
5561 -Implemented support for the new (ACPI 3.0) parameter to the Register macro,
11084 +Implemented support for the new (ACPI 3.0) parameter to the Register
11085 +macro,
5562 11086 AccessSize.
5563 11087
5564 11088 Fixed a problem where the _HE resource name for the Interrupt macro was
5565 11089 referencing bit 0 instead of bit 1.
5566 11090
5567 11091 Implemented check for maximum 255 interrupts in the Interrupt macro.
5568 11092
5569 11093 Fixed a problem with the predefined resource descriptor names where
5570 11094 incorrect AML code was generated if the offset within the resource buffer
5571 11095 was 0 or 1. The optimizer shortened the AML code to a single byte opcode
5572 11096 but did not update the surrounding package lengths.
5573 11097
5574 -Changes to the Dma macro: All channels within the channel list must be in
11098 +Changes to the Dma macro: All channels within the channel list must be
11099 +in
5575 11100 the range 0-7. Maximum 8 channels can be specified. BusMaster operand is
5576 11101 optional (default is BusMaster).
5577 11102
5578 11103 Implemented check for maximum 7 data bytes for the VendorShort macro.
5579 11104
5580 -The ReadWrite parameter is now optional for the Memory32 and similar macros.
11105 +The ReadWrite parameter is now optional for the Memory32 and similar
11106 +macros.
5581 11107
5582 11108 ----------------------------------------
5583 11109 03 December 2004. Summary of changes for version 20041203:
5584 11110
5585 11111 1) ACPI CA Core Subsystem:
5586 11112
5587 -The low-level field insertion/extraction code (exfldio) has been completely
11113 +The low-level field insertion/extraction code (exfldio) has been
11114 +completely
5588 11115 rewritten to eliminate unnecessary complexity, bugs, and boundary
5589 11116 conditions.
5590 11117
5591 -Fixed a problem in the ToInteger, ToBuffer, ToHexString, and ToDecimalString
11118 +Fixed a problem in the ToInteger, ToBuffer, ToHexString, and
11119 +ToDecimalString
5592 11120 operators where the input operand could be inadvertently deleted if no
5593 11121 conversion was necessary (e.g., if the input to ToInteger was an Integer
5594 11122 object.)
5595 11123
5596 -Fixed a problem with the ToDecimalString and ToHexString where an incorrect
11124 +Fixed a problem with the ToDecimalString and ToHexString where an
11125 +incorrect
5597 11126 exception code was returned if the resulting string would be > 200 chars.
5598 11127 AE_STRING_LIMIT is now returned.
5599 11128
5600 11129 Fixed a problem with the Concatenate operator where AE_OK was always
5601 11130 returned, even if the operation failed.
5602 11131
5603 11132 Fixed a problem in oswinxf (used by AcpiExec and iASL) to allow > 128
5604 11133 semaphores to be allocated.
5605 11134
5606 11135 Code and Data Size: Current and previous core subsystem library sizes are
5607 -shown below. These are the code and data sizes for the acpica.lib produced
11136 +shown below. These are the code and data sizes for the acpica.lib
11137 +produced
5608 11138 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5609 11139 any ACPI driver or OSPM code. The debug version of the code includes the
5610 -debug output trace mechanism and has a much larger code and data size. Note
5611 -that these values will vary depending on the efficiency of the compiler and
11140 +debug output trace mechanism and has a much larger code and data size.
11141 +Note
11142 +that these values will vary depending on the efficiency of the compiler
11143 +and
5612 11144 the compiler options used during generation.
5613 11145
5614 11146 Previous Release:
5615 11147 Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total
5616 11148 Debug Version: 165.2K Code, 68.6K Data, 233.8K Total
5617 11149 Current Release:
5618 11150 Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
5619 11151 Debug Version: 164.7K Code, 68.5K Data, 233.2K Total
5620 11152
5621 11153
5622 11154 2) iASL Compiler/Disassembler:
5623 11155
5624 11156 Fixed typechecking for the ObjectType and SizeOf operators. Problem was
5625 11157 recently introduced in 20041119.
5626 11158
5627 -Fixed a problem with the ToUUID macro where the upper nybble of each buffer
11159 +Fixed a problem with the ToUUID macro where the upper nybble of each
11160 +buffer
5628 11161 byte was inadvertently set to zero.
5629 11162
5630 11163 ----------------------------------------
5631 11164 19 November 2004. Summary of changes for version 20041119:
5632 11165
5633 11166 1) ACPI CA Core Subsystem:
5634 11167
5635 -Fixed a problem in the internal ConvertToInteger routine where new integers
5636 -were not truncated to 32 bits for 32-bit ACPI tables. This routine converts
11168 +Fixed a problem in the internal ConvertToInteger routine where new
11169 +integers
11170 +were not truncated to 32 bits for 32-bit ACPI tables. This routine
11171 +converts
5637 11172 buffers and strings to integers.
5638 11173
5639 -Implemented support to store a value to an Index() on a String object. This
11174 +Implemented support to store a value to an Index() on a String object.
11175 +This
5640 11176 is an ACPI 2.0 feature that had not yet been implemented.
5641 11177
5642 -Implemented new behavior for storing objects to individual package elements
5643 -(via the Index() operator). The previous behavior was to invoke the implicit
11178 +Implemented new behavior for storing objects to individual package
11179 +elements
11180 +(via the Index() operator). The previous behavior was to invoke the
11181 +implicit
5644 11182 conversion rules if an object was already present at the index. The new
5645 -behavior is to simply delete any existing object and directly store the new
5646 -object. Although the ACPI specification seems unclear on this subject, other
11183 +behavior is to simply delete any existing object and directly store the
11184 +new
11185 +object. Although the ACPI specification seems unclear on this subject,
11186 +other
5647 11187 ACPI implementations behave in this manner. (This is the root of the
5648 11188 AE_BAD_HEX_CONSTANT issue.)
5649 11189
5650 -Modified the RSDP memory scan mechanism to support the extended checksum for
11190 +Modified the RSDP memory scan mechanism to support the extended checksum
11191 +for
5651 11192 ACPI 2.0 (and above) RSDPs. Note that the search continues until a valid
5652 11193 RSDP signature is found with a valid checksum.
5653 11194
5654 11195 Code and Data Size: Current and previous core subsystem library sizes are
5655 -shown below. These are the code and data sizes for the acpica.lib produced
11196 +shown below. These are the code and data sizes for the acpica.lib
11197 +produced
5656 11198 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5657 11199 any ACPI driver or OSPM code. The debug version of the code includes the
5658 -debug output trace mechanism and has a much larger code and data size. Note
5659 -that these values will vary depending on the efficiency of the compiler and
11200 +debug output trace mechanism and has a much larger code and data size.
11201 +Note
11202 +that these values will vary depending on the efficiency of the compiler
11203 +and
5660 11204 the compiler options used during generation.
5661 11205
5662 11206 Previous Release:
5663 11207 Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total
5664 11208 Debug Version: 165.2K Code, 68.6K Data, 233.8K Total
5665 11209 Current Release:
5666 11210 Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total
5667 11211 Debug Version: 165.2K Code, 68.6K Data, 233.8K Total
5668 11212
5669 11213
5670 11214 2) iASL Compiler/Disassembler:
5671 11215
5672 11216 Fixed a missing semicolon in the aslcompiler.y file.
5673 11217
5674 11218 ----------------------------------------
5675 11219 05 November 2004. Summary of changes for version 20041105:
5676 11220
5677 11221 1) ACPI CA Core Subsystem:
5678 11222
5679 -Implemented support for FADT revision 2. This was an interim table (between
11223 +Implemented support for FADT revision 2. This was an interim table
11224 +(between
5680 11225 ACPI 1.0 and ACPI 2.0) that adds support for the FADT reset register.
5681 11226
5682 11227 Implemented optional support to allow uninitialized LocalX and ArgX
5683 -variables in a control method. The variables are initialized to an Integer
11228 +variables in a control method. The variables are initialized to an
11229 +Integer
5684 11230 object with a value of zero. This support is enabled by setting the
5685 11231 AcpiGbl_EnableInterpreterSlack flag to TRUE.
5686 11232
5687 -Implemented support for Integer objects for the SizeOf operator. Either 4
5688 -or 8 is returned, depending on the current integer size (32-bit or 64-bit,
11233 +Implemented support for Integer objects for the SizeOf operator. Either
11234 +4
11235 +or 8 is returned, depending on the current integer size (32-bit or 64-
11236 +bit,
5689 11237 depending on the parent table revision).
5690 11238
5691 -Fixed a problem in the implementation of the SizeOf and ObjectType operators
11239 +Fixed a problem in the implementation of the SizeOf and ObjectType
11240 +operators
5692 11241 where the operand was resolved to a value too early, causing incorrect
5693 11242 return values for some objects.
5694 11243
5695 11244 Fixed some possible memory leaks during exceptional conditions.
5696 11245
5697 11246 Code and Data Size: Current and previous core subsystem library sizes are
5698 -shown below. These are the code and data sizes for the acpica.lib produced
11247 +shown below. These are the code and data sizes for the acpica.lib
11248 +produced
5699 11249 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5700 11250 any ACPI driver or OSPM code. The debug version of the code includes the
5701 -debug output trace mechanism and has a much larger code and data size. Note
5702 -that these values will vary depending on the efficiency of the compiler and
11251 +debug output trace mechanism and has a much larger code and data size.
11252 +Note
11253 +that these values will vary depending on the efficiency of the compiler
11254 +and
5703 11255 the compiler options used during generation.
5704 11256
5705 11257 Previous Release:
5706 11258 Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total
5707 11259 Debug Version: 164.8K Code, 68.6K Data, 233.4K Total
5708 11260 Current Release:
5709 11261 Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total
5710 11262 Debug Version: 165.2K Code, 68.6K Data, 233.8K Total
5711 11263
5712 11264
5713 11265 2) iASL Compiler/Disassembler:
5714 11266
5715 11267 Implemented support for all ACPI 3.0 reserved names and methods.
5716 11268
5717 11269 Implemented all ACPI 3.0 grammar elements in the front-end, including
5718 11270 support for semicolons.
5719 11271
5720 11272 Implemented the ACPI 3.0 Function() and ToUUID() macros
5721 11273
5722 11274 Fixed a problem in the disassembler where a Scope() operator would not be
5723 11275 emitted properly if the target of the scope was in another table.
5724 11276
5725 11277 ----------------------------------------
5726 11278 15 October 2004. Summary of changes for version 20041015:
5727 11279
5728 11280 Note: ACPI CA is currently undergoing an in-depth and complete formal
5729 11281 evaluation to test/verify the following areas. Other suggestions are
5730 11282 welcome. This will result in an increase in the frequency of releases and
5731 11283 the number of bug fixes in the next few months.
5732 11284 - Functional tests for all ASL/AML operators
5733 11285 - All implicit/explicit type conversions
|
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5734 11286 - Bit fields and operation regions
5735 11287 - 64-bit math support and 32-bit-only "truncated" math support
5736 11288 - Exceptional conditions, both compiler and interpreter
5737 11289 - Dynamic object deletion and memory leaks
5738 11290 - ACPI 3.0 support when implemented
5739 11291 - External interfaces to the ACPI subsystem
5740 11292
5741 11293
5742 11294 1) ACPI CA Core Subsystem:
5743 11295
5744 -Fixed two alignment issues on 64-bit platforms - within debug statements in
5745 -AcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the Address
11296 +Fixed two alignment issues on 64-bit platforms - within debug statements
11297 +in
11298 +AcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the
11299 +Address
5746 11300 field within the non-aligned ACPI generic address structure.
5747 11301
5748 11302 Fixed a problem in the Increment and Decrement operators where incorrect
5749 11303 operand resolution could result in the inadvertent modification of the
5750 11304 original integer when the integer is passed into another method as an
5751 11305 argument and the arg is then incremented/decremented.
5752 11306
5753 -Fixed a problem in the FromBCD operator where the upper 32-bits of a 64-bit
11307 +Fixed a problem in the FromBCD operator where the upper 32-bits of a 64-
11308 +bit
5754 11309 BCD number were truncated during conversion.
5755 11310
5756 -Fixed a problem in the ToDecimal operator where the length of the resulting
5757 -string could be set incorrectly too long if the input operand was a Buffer
11311 +Fixed a problem in the ToDecimal operator where the length of the
11312 +resulting
11313 +string could be set incorrectly too long if the input operand was a
11314 +Buffer
5758 11315 object.
5759 11316
5760 -Fixed a problem in the Logical operators (LLess, etc.) where a NULL byte (0)
11317 +Fixed a problem in the Logical operators (LLess, etc.) where a NULL byte
11318 +(0)
5761 11319 within a buffer would prematurely terminate a compare between buffer
5762 11320 objects.
5763 11321
5764 11322 Added a check for string overflow (>200 characters as per the ACPI
5765 11323 specification) during the Concatenate operator with two string operands.
5766 11324
5767 11325 Code and Data Size: Current and previous core subsystem library sizes are
5768 -shown below. These are the code and data sizes for the acpica.lib produced
11326 +shown below. These are the code and data sizes for the acpica.lib
11327 +produced
5769 11328 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5770 11329 any ACPI driver or OSPM code. The debug version of the code includes the
5771 -debug output trace mechanism and has a much larger code and data size. Note
5772 -that these values will vary depending on the efficiency of the compiler and
11330 +debug output trace mechanism and has a much larger code and data size.
11331 +Note
11332 +that these values will vary depending on the efficiency of the compiler
11333 +and
5773 11334 the compiler options used during generation.
5774 11335
5775 11336 Previous Release:
5776 11337 Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total
5777 11338 Debug Version: 164.6K Code, 68.5K Data, 233.1K Total
5778 11339 Current Release:
5779 11340 Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total
5780 11341 Debug Version: 164.8K Code, 68.6K Data, 233.4K Total
5781 11342
5782 11343
5783 11344
5784 11345 2) iASL Compiler/Disassembler:
5785 11346
5786 11347 Allow the use of the ObjectType operator on uninitialized Locals and Args
5787 11348 (returns 0 as per the ACPI specification).
5788 11349
5789 -Fixed a problem where the compiler would fault if there was a syntax error
11350 +Fixed a problem where the compiler would fault if there was a syntax
11351 +error
5790 11352 in the FieldName of all of the various CreateXXXField operators.
5791 11353
5792 -Disallow the use of lower case letters within the EISAID macro, as per the
5793 -ACPI specification. All EISAID strings must be of the form "UUUNNNN" Where
11354 +Disallow the use of lower case letters within the EISAID macro, as per
11355 +the
11356 +ACPI specification. All EISAID strings must be of the form "UUUNNNN"
11357 +Where
5794 11358 U is an uppercase letter and N is a hex digit.
5795 11359
5796 11360
5797 11361 ----------------------------------------
5798 11362 06 October 2004. Summary of changes for version 20041006:
5799 11363
5800 11364 1) ACPI CA Core Subsystem:
5801 11365
5802 11366 Implemented support for the ACPI 3.0 Timer operator. This ASL function
5803 11367 implements a 64-bit timer with 100 nanosecond granularity.
5804 11368
5805 11369 Defined a new OSL interface, AcpiOsGetTimer. This interface is used to
5806 -implement the ACPI 3.0 Timer operator. This allows the host OS to implement
5807 -the timer with the best clock available. Also, it keeps the core subsystem
11370 +implement the ACPI 3.0 Timer operator. This allows the host OS to
11371 +implement
11372 +the timer with the best clock available. Also, it keeps the core
11373 +subsystem
5808 11374 out of the clock handling business, since the host OS (usually) performs
5809 11375 this function.
5810 11376
5811 11377 Fixed an alignment issue on 64-bit platforms. The HwLowLevelRead(Write)
5812 11378 functions use a 64-bit address which is part of the packed ACPI Generic
5813 -Address Structure. Since the structure is non-aligned, the alignment macros
11379 +Address Structure. Since the structure is non-aligned, the alignment
11380 +macros
5814 11381 are now used to extract the address to a local variable before use.
5815 11382
5816 -Fixed a problem where the ToInteger operator assumed all input strings were
5817 -hexadecimal. The operator now handles both decimal strings and hex strings
11383 +Fixed a problem where the ToInteger operator assumed all input strings
11384 +were
11385 +hexadecimal. The operator now handles both decimal strings and hex
11386 +strings
5818 11387 (prefixed with "0x").
5819 11388
5820 11389 Fixed a problem where the string length in the string object created as a
5821 11390 result of the internal ConvertToString procedure could be incorrect. This
5822 -potentially affected all implicit conversions and also the ToDecimalString
11391 +potentially affected all implicit conversions and also the
11392 +ToDecimalString
5823 11393 and ToHexString operators.
5824 11394
5825 11395 Fixed two problems in the ToString operator. If the length parameter was
5826 11396 zero, an incorrect string object was created and the value of the input
5827 11397 length parameter was inadvertently changed from zero to Ones.
5828 11398
5829 -Fixed a problem where the optional ResourceSource string in the ExtendedIRQ
11399 +Fixed a problem where the optional ResourceSource string in the
11400 +ExtendedIRQ
5830 11401 resource macro was ignored.
5831 11402
5832 -Simplified the interfaces to the internal division functions, reducing code
11403 +Simplified the interfaces to the internal division functions, reducing
11404 +code
5833 11405 size and complexity.
5834 11406
5835 11407 Code and Data Size: Current and previous core subsystem library sizes are
5836 -shown below. These are the code and data sizes for the acpica.lib produced
11408 +shown below. These are the code and data sizes for the acpica.lib
11409 +produced
5837 11410 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5838 11411 any ACPI driver or OSPM code. The debug version of the code includes the
5839 -debug output trace mechanism and has a much larger code and data size. Note
5840 -that these values will vary depending on the efficiency of the compiler and
11412 +debug output trace mechanism and has a much larger code and data size.
11413 +Note
11414 +that these values will vary depending on the efficiency of the compiler
11415 +and
5841 11416 the compiler options used during generation.
5842 11417
5843 11418 Previous Release:
5844 11419 Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total
5845 11420 Debug Version: 164.5K Code, 68.3K Data, 232.8K Total
5846 11421 Current Release:
5847 11422 Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total
5848 11423 Debug Version: 164.6K Code, 68.5K Data, 233.1K Total
5849 11424
5850 11425
5851 11426 2) iASL Compiler/Disassembler:
5852 11427
5853 11428 Implemented support for the ACPI 3.0 Timer operator.
5854 11429
5855 -Fixed a problem where the Default() operator was inadvertently ignored in a
11430 +Fixed a problem where the Default() operator was inadvertently ignored in
11431 +a
5856 11432 Switch/Case block. This was a problem in the translation of the Switch
5857 11433 statement to If...Else pairs.
5858 11434
5859 -Added support to allow a standalone Return operator, with no parentheses (or
11435 +Added support to allow a standalone Return operator, with no parentheses
11436 +(or
5860 11437 operands).
5861 11438
5862 11439 Fixed a problem with code generation for the ElseIf operator where the
5863 11440 translated Else...If parse tree was improperly constructed leading to the
5864 11441 loss of some code.
5865 11442
5866 11443 ----------------------------------------
5867 11444 22 September 2004. Summary of changes for version 20040922:
5868 11445
5869 11446 1) ACPI CA Core Subsystem:
5870 11447
5871 -Fixed a problem with the implementation of the LNot() operator where "Ones"
5872 -was not returned for the TRUE case. Changed the code to return Ones instead
5873 -of (!Arg) which was usually 1. This change affects iASL constant folding for
11448 +Fixed a problem with the implementation of the LNot() operator where
11449 +"Ones"
11450 +was not returned for the TRUE case. Changed the code to return Ones
11451 +instead
11452 +of (!Arg) which was usually 1. This change affects iASL constant folding
11453 +for
5874 11454 this operator also.
5875 11455
5876 -Fixed a problem in AcpiUtInitializeBuffer where an existing buffer was not
11456 +Fixed a problem in AcpiUtInitializeBuffer where an existing buffer was
11457 +not
5877 11458 initialized properly -- Now zero the entire buffer in this case where the
5878 11459 buffer already exists.
5879 11460
5880 11461 Changed the interface to AcpiOsSleep from (UINT32 Seconds, UINT32
5881 11462 Milliseconds) to simply (ACPI_INTEGER Milliseconds). This simplifies all
5882 11463 related code considerably. This will require changes/updates to all OS
5883 11464 interface layers (OSLs.)
5884 11465
5885 -Implemented a new external interface, AcpiInstallExceptionHandler, to allow
5886 -a system exception handler to be installed. This handler is invoked upon any
11466 +Implemented a new external interface, AcpiInstallExceptionHandler, to
11467 +allow
11468 +a system exception handler to be installed. This handler is invoked upon
11469 +any
5887 11470 run-time exception that occurs during control method execution.
5888 11471
5889 11472 Added support for the DSDT in AcpiTbFindTable. This allows the
5890 11473 DataTableRegion() operator to access the local copy of the DSDT.
5891 11474
5892 11475 Code and Data Size: Current and previous core subsystem library sizes are
5893 -shown below. These are the code and data sizes for the acpica.lib produced
11476 +shown below. These are the code and data sizes for the acpica.lib
11477 +produced
5894 11478 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5895 11479 any ACPI driver or OSPM code. The debug version of the code includes the
5896 -debug output trace mechanism and has a much larger code and data size. Note
5897 -that these values will vary depending on the efficiency of the compiler and
11480 +debug output trace mechanism and has a much larger code and data size.
11481 +Note
11482 +that these values will vary depending on the efficiency of the compiler
11483 +and
5898 11484 the compiler options used during generation.
5899 11485
5900 11486 Previous Release:
5901 11487 Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total
5902 11488 Debug Version: 164.2K Code, 68.2K Data, 232.4K Total
5903 11489 Current Release:
5904 11490 Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total
5905 11491 Debug Version: 164.5K Code, 68.3K Data, 232.8K Total
5906 11492
5907 11493
5908 11494 2) iASL Compiler/Disassembler:
5909 11495
5910 11496 Fixed a problem with constant folding and the LNot operator. LNot was
5911 -returning 1 in the TRUE case, not Ones as per the ACPI specification. This
11497 +returning 1 in the TRUE case, not Ones as per the ACPI specification.
11498 +This
5912 11499 could result in the generation of an incorrect folded/reduced constant.
5913 11500
5914 11501 End-Of-File is now allowed within a "//"-style comment. A parse error no
5915 -longer occurs if such a comment is at the very end of the input ASL source
11502 +longer occurs if such a comment is at the very end of the input ASL
11503 +source
5916 11504 file.
5917 11505
5918 11506 Implemented the "-r" option to override the Revision in the table header.
5919 -The initial use of this option will be to simplify the evaluation of the AML
5920 -interpreter by allowing a single ASL source module to be compiled for either
11507 +The initial use of this option will be to simplify the evaluation of the
11508 +AML
11509 +interpreter by allowing a single ASL source module to be compiled for
11510 +either
5921 11511 32-bit or 64-bit integers.
5922 11512
5923 11513
5924 11514 ----------------------------------------
5925 11515 27 August 2004. Summary of changes for version 20040827:
5926 11516
5927 11517 1) ACPI CA Core Subsystem:
5928 11518
5929 11519 - Implemented support for implicit object conversion in the non-numeric
5930 -logical operators (LEqual, LGreater, LGreaterEqual, LLess, LLessEqual, and
11520 +logical operators (LEqual, LGreater, LGreaterEqual, LLess, LLessEqual,
11521 +and
5931 11522 LNotEqual.) Any combination of Integers/Strings/Buffers may now be used;
5932 -the second operand is implicitly converted on the fly to match the type of
11523 +the second operand is implicitly converted on the fly to match the type
11524 +of
5933 11525 the first operand. For example:
5934 11526
5935 11527 LEqual (Source1, Source2)
5936 11528
5937 -Source1 and Source2 must each evaluate to an integer, a string, or a buffer.
5938 -The data type of Source1 dictates the required type of Source2. Source2 is
11529 +Source1 and Source2 must each evaluate to an integer, a string, or a
11530 +buffer.
11531 +The data type of Source1 dictates the required type of Source2. Source2
11532 +is
5939 11533 implicitly converted if necessary to match the type of Source1.
5940 11534
5941 -- Updated and corrected the behavior of the string conversion support. The
11535 +- Updated and corrected the behavior of the string conversion support.
11536 +The
5942 11537 rules concerning conversion of buffers to strings (according to the ACPI
5943 11538 specification) are as follows:
5944 11539
5945 11540 ToDecimalString - explicit byte-wise conversion of buffer to string of
5946 -decimal values (0-255) separated by commas. ToHexString - explicit byte-wise
11541 +decimal values (0-255) separated by commas. ToHexString - explicit byte-
11542 +wise
5947 11543 conversion of buffer to string of hex values (0-FF) separated by commas.
5948 -ToString - explicit byte-wise conversion of buffer to string. Byte-by-byte
5949 -copy with no transform except NULL terminated. Any other implicit buffer-to-
5950 -string conversion - byte-wise conversion of buffer to string of hex values
11544 +ToString - explicit byte-wise conversion of buffer to string. Byte-by-
11545 +byte
11546 +copy with no transform except NULL terminated. Any other implicit buffer-
11547 +to-
11548 +string conversion - byte-wise conversion of buffer to string of hex
11549 +values
5951 11550 (0-FF) separated by spaces.
5952 11551
5953 11552 - Fixed typo in definition of AcpiGbl_EnableInterpreterSlack.
5954 11553
5955 -- Fixed a problem in AcpiNsGetPathnameLength where the returned length was
11554 +- Fixed a problem in AcpiNsGetPathnameLength where the returned length
11555 +was
5956 11556 one byte too short in the case of a node in the root scope. This could
5957 11557 cause a fault during debug output.
5958 11558
5959 -- Code and Data Size: Current and previous core subsystem library sizes are
5960 -shown below. These are the code and data sizes for the acpica.lib produced
11559 +- Code and Data Size: Current and previous core subsystem library sizes
11560 +are
11561 +shown below. These are the code and data sizes for the acpica.lib
11562 +produced
5961 11563 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
5962 11564 any ACPI driver or OSPM code. The debug version of the code includes the
5963 -debug output trace mechanism and has a much larger code and data size. Note
5964 -that these values will vary depending on the efficiency of the compiler and
11565 +debug output trace mechanism and has a much larger code and data size.
11566 +Note
11567 +that these values will vary depending on the efficiency of the compiler
11568 +and
5965 11569 the compiler options used during generation.
5966 11570
5967 11571 Previous Release:
5968 11572 Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total
5969 11573 Debug Version: 164.1K Code, 68.3K Data, 232.4K Total
5970 11574 Current Release:
5971 11575 Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total
5972 11576 Debug Version: 164.2K Code, 68.2K Data, 232.4K Total
5973 11577
5974 11578
5975 11579 2) iASL Compiler/Disassembler:
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5976 11580
5977 11581 - Fixed a Linux generation error.
5978 11582
5979 11583
5980 11584 ----------------------------------------
5981 11585 16 August 2004. Summary of changes for version 20040816:
5982 11586
5983 11587 1) ACPI CA Core Subsystem:
5984 11588
5985 11589 Designed and implemented support within the AML interpreter for the so-
5986 -called "implicit return". This support returns the result of the last ASL
11590 +called "implicit return". This support returns the result of the last
11591 +ASL
5987 11592 operation within a control method, in the absence of an explicit Return()
5988 11593 operator. A few machines depend on this behavior, even though it is not
5989 -explicitly supported by the ASL language. It is optional support that can
11594 +explicitly supported by the ASL language. It is optional support that
11595 +can
5990 11596 be enabled at runtime via the AcpiGbl_EnableInterpreterSlack flag.
5991 11597
5992 -Removed support for the PCI_Config address space from the internal low level
11598 +Removed support for the PCI_Config address space from the internal low
11599 +level
5993 11600 hardware interfaces (AcpiHwLowLevelRead and AcpiHwLowLevelWrite). This
5994 -support was not used internally, and would not work correctly anyway because
11601 +support was not used internally, and would not work correctly anyway
11602 +because
5995 11603 the PCI bus number and segment number were not supported. There are
5996 -separate interfaces for PCI configuration space access because of the unique
11604 +separate interfaces for PCI configuration space access because of the
11605 +unique
5997 11606 interface.
5998 11607
5999 11608 Code and Data Size: Current and previous core subsystem library sizes are
6000 -shown below. These are the code and data sizes for the acpica.lib produced
11609 +shown below. These are the code and data sizes for the acpica.lib
11610 +produced
6001 11611 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
6002 11612 any ACPI driver or OSPM code. The debug version of the code includes the
6003 -debug output trace mechanism and has a much larger code and data size. Note
6004 -that these values will vary depending on the efficiency of the compiler and
11613 +debug output trace mechanism and has a much larger code and data size.
11614 +Note
11615 +that these values will vary depending on the efficiency of the compiler
11616 +and
6005 11617 the compiler options used during generation.
6006 11618
6007 11619 Previous Release:
6008 11620 Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total
6009 11621 Debug Version: 164.1K Code, 68.2K Data, 232.3K Total
6010 11622 Current Release:
6011 11623 Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total
6012 11624 Debug Version: 164.1K Code, 68.3K Data, 232.4K Total
6013 11625
6014 11626
6015 11627 2) iASL Compiler/Disassembler:
6016 11628
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6017 11629 Fixed a problem where constants in ASL expressions at the root level (not
6018 11630 within a control method) could be inadvertently truncated during code
6019 11631 generation. This problem was introduced in the 20040715 release.
6020 11632
6021 11633
6022 11634 ----------------------------------------
6023 11635 15 July 2004. Summary of changes for version 20040715:
6024 11636
6025 11637 1) ACPI CA Core Subsystem:
6026 11638
6027 -Restructured the internal HW GPE interfaces to pass/track the current state
11639 +Restructured the internal HW GPE interfaces to pass/track the current
11640 +state
6028 11641 of interrupts (enabled/disabled) in order to avoid possible deadlock and
6029 11642 increase flexibility of the interfaces.
6030 11643
6031 -Implemented a "lexicographical compare" for String and Buffer objects within
6032 -the logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual --
6033 -as per further clarification to the ACPI specification. Behavior is similar
11644 +Implemented a "lexicographical compare" for String and Buffer objects
11645 +within
11646 +the logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual -
11647 +-
11648 +as per further clarification to the ACPI specification. Behavior is
11649 +similar
6034 11650 to C library "strcmp".
6035 11651
6036 11652 Completed a major reduction in CPU stack use for the AcpiGetFirmwareTable
6037 11653 external function. In the 32-bit non-debug case, the stack use has been
6038 11654 reduced from 168 bytes to 32 bytes.
6039 11655
6040 -Deployed a new run-time configuration flag, AcpiGbl_EnableInterpreterSlack,
11656 +Deployed a new run-time configuration flag,
11657 +AcpiGbl_EnableInterpreterSlack,
6041 11658 whose purpose is to allow the AML interpreter to forgive certain bad AML
6042 11659 constructs. Default setting is FALSE.
6043 11660
6044 -Implemented the first use of AcpiGbl_EnableInterpreterSlack in the Field IO
6045 -support code. If enabled, it allows field access to go beyond the end of a
6046 -region definition if the field is within the region length rounded up to the
11661 +Implemented the first use of AcpiGbl_EnableInterpreterSlack in the Field
11662 +IO
11663 +support code. If enabled, it allows field access to go beyond the end of
11664 +a
11665 +region definition if the field is within the region length rounded up to
11666 +the
6047 11667 next access width boundary (a common coding error.)
6048 11668
6049 11669 Renamed OSD_HANDLER to ACPI_OSD_HANDLER, and OSD_EXECUTION_CALLBACK to
6050 -ACPI_OSD_EXEC_CALLBACK for consistency with other ACPI symbols. Also, these
11670 +ACPI_OSD_EXEC_CALLBACK for consistency with other ACPI symbols. Also,
11671 +these
6051 11672 symbols are lowercased by the latest version of the AcpiSrc tool.
6052 11673
6053 11674 The prototypes for the PCI interfaces in acpiosxf.h have been updated to
6054 11675 rename "Register" to simply "Reg" to prevent certain compilers from
6055 11676 complaining.
6056 11677
6057 11678 Code and Data Size: Current and previous core subsystem library sizes are
6058 -shown below. These are the code and data sizes for the acpica.lib produced
11679 +shown below. These are the code and data sizes for the acpica.lib
11680 +produced
6059 11681 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
6060 11682 any ACPI driver or OSPM code. The debug version of the code includes the
6061 -debug output trace mechanism and has a much larger code and data size. Note
6062 -that these values will vary depending on the efficiency of the compiler and
11683 +debug output trace mechanism and has a much larger code and data size.
11684 +Note
11685 +that these values will vary depending on the efficiency of the compiler
11686 +and
6063 11687 the compiler options used during generation.
6064 11688
6065 11689 Previous Release:
6066 11690 Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total
6067 11691 Debug Version: 163.8K Code, 68.2K Data, 232.0K Total
6068 11692 Current Release:
6069 11693 Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total
6070 11694 Debug Version: 164.1K Code, 68.2K Data, 232.3K Total
6071 11695
6072 11696
6073 11697 2) iASL Compiler/Disassembler:
6074 11698
6075 11699 Implemented full support for Package objects within the Case() operator.
6076 11700 Note: The Break() operator is currently not supported within Case blocks
6077 -(TermLists) as there is some question about backward compatibility with ACPI
11701 +(TermLists) as there is some question about backward compatibility with
11702 +ACPI
6078 11703 1.0 interpreters.
6079 11704
6080 11705
6081 -Fixed a problem where complex terms were not supported properly within the
11706 +Fixed a problem where complex terms were not supported properly within
11707 +the
6082 11708 Switch() operator.
6083 11709
6084 11710 Eliminated extraneous warning for compiler-emitted reserved names of the
6085 11711 form "_T_x". (Used in Switch/Case operators.)
6086 11712
6087 11713 Eliminated optimization messages for "_T_x" objects and small constants
6088 11714 within the DefinitionBlock operator.
6089 11715
6090 11716
6091 11717 ----------------------------------------
6092 11718 15 June 2004. Summary of changes for version 20040615:
6093 11719
6094 11720 1) ACPI CA Core Subsystem:
6095 11721
6096 -Implemented support for Buffer and String objects (as per ACPI 2.0) for the
11722 +Implemented support for Buffer and String objects (as per ACPI 2.0) for
11723 +the
6097 11724 following ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and
6098 11725 LLessEqual.
6099 11726
6100 11727 All directory names in the entire source package are lower case, as they
6101 11728 were in earlier releases.
6102 11729
6103 -Implemented "Disassemble" command in the AML debugger that will disassemble
11730 +Implemented "Disassemble" command in the AML debugger that will
11731 +disassemble
6104 11732 a single control method.
6105 11733
6106 11734 Code and Data Size: Current and previous core subsystem library sizes are
6107 -shown below. These are the code and data sizes for the acpica.lib produced
11735 +shown below. These are the code and data sizes for the acpica.lib
11736 +produced
6108 11737 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
6109 11738 any ACPI driver or OSPM code. The debug version of the code includes the
6110 -debug output trace mechanism and has a much larger code and data size. Note
6111 -that these values will vary depending on the efficiency of the compiler and
11739 +debug output trace mechanism and has a much larger code and data size.
11740 +Note
11741 +that these values will vary depending on the efficiency of the compiler
11742 +and
6112 11743 the compiler options used during generation.
6113 11744
6114 11745 Previous Release:
6115 11746 Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total
6116 11747 Debug Version: 163.3K Code, 67.2K Data, 230.5K Total
6117 11748
6118 11749 Current Release:
6119 11750 Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total
6120 11751 Debug Version: 163.8K Code, 68.2K Data, 232.0K Total
6121 11752
6122 11753
6123 11754 2) iASL Compiler/Disassembler:
6124 11755
6125 -Implemented support for Buffer and String objects (as per ACPI 2.0) for the
11756 +Implemented support for Buffer and String objects (as per ACPI 2.0) for
11757 +the
6126 11758 following ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and
6127 11759 LLessEqual.
6128 11760
6129 11761 All directory names in the entire source package are lower case, as they
6130 11762 were in earlier releases.
6131 11763
6132 11764 Fixed a fault when using the -g or -d<nofilename> options if the FADT was
6133 11765 not found.
6134 11766
6135 -Fixed an issue with the Windows version of the compiler where later versions
11767 +Fixed an issue with the Windows version of the compiler where later
11768 +versions
6136 11769 of Windows place the FADT in the registry under the name "FADT" and not
6137 11770 "FACP" as earlier versions did. This applies when using the -g or -
6138 11771 d<nofilename> options. The compiler now looks for both strings as
6139 11772 necessary.
6140 11773
6141 -Fixed a problem with compiler namepath optimization where a namepath within
6142 -the Scope() operator could not be optimized if the namepath was a subpath of
11774 +Fixed a problem with compiler namepath optimization where a namepath
11775 +within
11776 +the Scope() operator could not be optimized if the namepath was a subpath
11777 +of
6143 11778 the current scope path.
6144 11779
6145 11780 ----------------------------------------
6146 11781 27 May 2004. Summary of changes for version 20040527:
6147 11782
6148 11783 1) ACPI CA Core Subsystem:
6149 11784
6150 -Completed a new design and implementation for EBDA (Extended BIOS Data Area)
6151 -support in the RSDP scan code. The original code improperly scanned for the
6152 -EBDA by simply scanning from memory location 0 to 0x400. The correct method
11785 +Completed a new design and implementation for EBDA (Extended BIOS Data
11786 +Area)
11787 +support in the RSDP scan code. The original code improperly scanned for
11788 +the
11789 +EBDA by simply scanning from memory location 0 to 0x400. The correct
11790 +method
6153 11791 is to first obtain the EBDA pointer from within the BIOS data area, then
6154 -scan 1K of memory starting at the EBDA pointer. There appear to be few if
11792 +scan 1K of memory starting at the EBDA pointer. There appear to be few
11793 +if
6155 11794 any machines that place the RSDP in the EBDA, however.
6156 11795
6157 11796 Integrated a fix for a possible fault during evaluation of BufferField
6158 11797 arguments. Obsolete code that was causing the problem was removed.
6159 11798
6160 11799 Found and fixed a problem in the Field Support Code where data could be
6161 11800 corrupted on a bit field read that starts on an aligned boundary but does
6162 11801 not end on an aligned boundary. Merged the read/write "datum length"
6163 11802 calculation code into a common procedure.
6164 11803
6165 11804 Rolled in a couple of changes to the FreeBSD-specific header.
6166 11805
6167 11806
6168 11807 Code and Data Size: Current and previous core subsystem library sizes are
6169 -shown below. These are the code and data sizes for the acpica.lib produced
11808 +shown below. These are the code and data sizes for the acpica.lib
11809 +produced
6170 11810 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
6171 11811 any ACPI driver or OSPM code. The debug version of the code includes the
6172 -debug output trace mechanism and has a much larger code and data size. Note
6173 -that these values will vary depending on the efficiency of the compiler and
11812 +debug output trace mechanism and has a much larger code and data size.
11813 +Note
11814 +that these values will vary depending on the efficiency of the compiler
11815 +and
6174 11816 the compiler options used during generation.
6175 11817
6176 11818 Previous Release:
6177 11819 Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total
6178 11820 Debug Version: 163.2K Code, 67.2K Data, 230.4K Total
6179 11821 Current Release:
6180 11822 Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total
6181 11823 Debug Version: 163.3K Code, 67.2K Data, 230.5K Total
6182 11824
6183 11825
6184 11826 2) iASL Compiler/Disassembler:
6185 11827
6186 -Fixed a generation warning produced by some overly-verbose compilers for a
11828 +Fixed a generation warning produced by some overly-verbose compilers for
11829 +a
6187 11830 64-bit constant.
6188 11831
6189 11832 ----------------------------------------
6190 11833 14 May 2004. Summary of changes for version 20040514:
6191 11834
6192 11835 1) ACPI CA Core Subsystem:
6193 11836
6194 11837 Fixed a problem where hardware GPE enable bits sometimes not set properly
6195 11838 during and after GPE method execution. Result of 04/27 changes.
6196 11839
6197 11840 Removed extra "clear all GPEs" when sleeping/waking.
6198 11841
6199 11842 Removed AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the single
6200 -AcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above to
11843 +AcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above
11844 +to
6201 11845 the new AcpiEv* calls as appropriate.
6202 11846
6203 -ACPI_OS_NAME was removed from the OS-specific headers. The default name is
6204 -now "Microsoft Windows NT" for maximum compatibility. However this can be
11847 +ACPI_OS_NAME was removed from the OS-specific headers. The default name
11848 +is
11849 +now "Microsoft Windows NT" for maximum compatibility. However this can
11850 +be
6205 11851 changed by modifying the acconfig.h file.
6206 11852
6207 11853 Allow a single invocation of AcpiInstallNotifyHandler for a handler that
6208 11854 traps both types of notifies (System, Device). Use ACPI_ALL_NOTIFY flag.
6209 11855
6210 11856 Run _INI methods on ThermalZone objects. This is against the ACPI
6211 -specification, but there is apparently ASL code in the field that has these
11857 +specification, but there is apparently ASL code in the field that has
11858 +these
6212 11859 _INI methods, and apparently "other" AML interpreters execute them.
6213 11860
6214 11861 Performed a full 16/32/64 bit lint that resulted in some small changes.
6215 11862
6216 11863 Added a sleep simulation command to the AML debugger to test sleep code.
6217 11864
6218 11865 Code and Data Size: Current and previous core subsystem library sizes are
6219 -shown below. These are the code and data sizes for the acpica.lib produced
11866 +shown below. These are the code and data sizes for the acpica.lib
11867 +produced
6220 11868 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
6221 11869 any ACPI driver or OSPM code. The debug version of the code includes the
6222 -debug output trace mechanism and has a much larger code and data size. Note
6223 -that these values will vary depending on the efficiency of the compiler and
11870 +debug output trace mechanism and has a much larger code and data size.
11871 +Note
11872 +that these values will vary depending on the efficiency of the compiler
11873 +and
6224 11874 the compiler options used during generation.
6225 11875
6226 11876 Previous Release:
6227 11877 Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total
6228 11878 Debug Version: 162.9K Code, 67.0K Data, 229.9K Total
6229 11879 Current Release:
6230 11880 Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total
6231 11881 Debug Version: 163.2K Code, 67.2K Data, 230.4K Total
6232 11882
6233 11883 ----------------------------------------
6234 11884 27 April 2004. Summary of changes for version 20040427:
6235 11885
6236 11886 1) ACPI CA Core Subsystem:
6237 11887
6238 11888 Completed a major overhaul of the GPE handling within ACPI CA. There are
6239 -now three types of GPEs: wake-only, runtime-only, and combination wake/run.
11889 +now three types of GPEs: wake-only, runtime-only, and combination
11890 +wake/run.
6240 11891 The only GPEs allowed to be combination wake/run are for button-style
6241 -devices such as a control-method power button, control-method sleep button,
6242 -or a notebook lid switch. GPEs that have an _Lxx or _Exx method and are not
11892 +devices such as a control-method power button, control-method sleep
11893 +button,
11894 +or a notebook lid switch. GPEs that have an _Lxx or _Exx method and are
11895 +not
6243 11896 referenced by any _PRW methods are marked for "runtime" and hardware
6244 -enabled. Any GPE that is referenced by a _PRW method is marked for "wake"
11897 +enabled. Any GPE that is referenced by a _PRW method is marked for
11898 +"wake"
6245 11899 (and disabled at runtime). However, at sleep time, only those GPEs that
6246 -have been specifically enabled for wake via the AcpiEnableGpe interface will
11900 +have been specifically enabled for wake via the AcpiEnableGpe interface
11901 +will
6247 11902 actually be hardware enabled.
6248 11903
6249 -A new external interface has been added, AcpiSetGpeType(), that is meant to
6250 -be used by device drivers to force a GPE to a particular type. It will be
11904 +A new external interface has been added, AcpiSetGpeType(), that is meant
11905 +to
11906 +be used by device drivers to force a GPE to a particular type. It will
11907 +be
6251 11908 especially useful for the drivers for the button devices mentioned above.
6252 11909
6253 11910 Completed restructuring of the ACPI CA initialization sequence so that
6254 -default operation region handlers are installed before GPEs are initialized
6255 -and the _PRW methods are executed. This will prevent errors when the _PRW
11911 +default operation region handlers are installed before GPEs are
11912 +initialized
11913 +and the _PRW methods are executed. This will prevent errors when the
11914 +_PRW
6256 11915 methods attempt to access system memory or I/O space.
6257 11916
6258 -GPE enable/disable no longer reads the GPE enable register. We now keep the
11917 +GPE enable/disable no longer reads the GPE enable register. We now keep
11918 +the
6259 11919 enable info for runtime and wake separate and in the GPE_EVENT_INFO. We
6260 11920 thus no longer depend on the hardware to maintain these bits.
6261 11921
6262 11922 Always clear the wake status and fixed/GPE status bits before sleep, even
6263 11923 for state S5.
6264 11924
6265 11925 Improved the AML debugger output for displaying the GPE blocks and their
6266 11926 current status.
6267 11927
6268 -Added new strings for the _OSI method, of the form "Windows 2001 SPx" where
11928 +Added new strings for the _OSI method, of the form "Windows 2001 SPx"
11929 +where
6269 11930 x = 0,1,2,3,4.
6270 11931
6271 -Fixed a problem where the physical address was incorrectly calculated when
6272 -the Load() operator was used to directly load from an Operation Region (vs.
6273 -loading from a Field object.) Also added check for minimum table length for
11932 +Fixed a problem where the physical address was incorrectly calculated
11933 +when
11934 +the Load() operator was used to directly load from an Operation Region
11935 +(vs.
11936 +loading from a Field object.) Also added check for minimum table length
11937 +for
6274 11938 this case.
6275 11939
6276 11940 Fix for multiple mutex acquisition. Restore original thread SyncLevel on
6277 11941 mutex release.
6278 11942
6279 11943 Added ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for
6280 11944 consistency with the other fields returned.
6281 11945
6282 11946 Shrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one such
6283 11947 structure for each GPE in the system, so the size of this structure is
6284 11948 important.
6285 11949
6286 -CPU stack requirement reduction: Cleaned up the method execution and object
11950 +CPU stack requirement reduction: Cleaned up the method execution and
11951 +object
6287 11952 evaluation paths so that now a parameter structure is passed, instead of
6288 11953 copying the various method parameters over and over again.
6289 11954
6290 11955 In evregion.c: Correctly exit and reenter the interpreter region if and
6291 -only if dispatching an operation region request to a user-installed handler.
11956 +only if dispatching an operation region request to a user-installed
11957 +handler.
6292 11958 Do not exit/reenter when dispatching to a default handler (e.g., default
6293 11959 system memory or I/O handlers)
6294 11960
6295 11961
6296 -Notes for updating drivers for the new GPE support. The following changes
6297 -must be made to ACPI-related device drivers that are attached to one or more
6298 -GPEs: (This information will be added to the ACPI CA Programmer Reference.)
11962 +Notes for updating drivers for the new GPE support. The following
11963 +changes
11964 +must be made to ACPI-related device drivers that are attached to one or
11965 +more
11966 +GPEs: (This information will be added to the ACPI CA Programmer
11967 +Reference.)
6299 11968
6300 -1) AcpiInstallGpeHandler no longer automatically enables the GPE, you must
11969 +1) AcpiInstallGpeHandler no longer automatically enables the GPE, you
11970 +must
6301 11971 explicitly call AcpiEnableGpe.
6302 11972 2) There is a new interface called AcpiSetGpeType. This should be called
6303 11973 before enabling the GPE. Also, this interface will automatically disable
6304 11974 the GPE if it is currently enabled.
6305 11975 3) AcpiEnableGpe no longer supports a GPE type flag.
6306 11976
6307 11977 Specific drivers that must be changed:
6308 11978 1) EC driver:
6309 11979 AcpiInstallGpeHandler (NULL, GpeNum, ACPI_GPE_EDGE_TRIGGERED,
6310 11980 AeGpeHandler, NULL);
6311 11981 AcpiSetGpeType (NULL, GpeNum, ACPI_GPE_TYPE_RUNTIME);
6312 11982 AcpiEnableGpe (NULL, GpeNum, ACPI_NOT_ISR);
6313 11983
6314 11984 2) Button Drivers (Power, Lid, Sleep):
6315 11985 Run _PRW method under parent device
6316 11986 If _PRW exists: /* This is a control-method button */
6317 11987 Extract GPE number and possibly GpeDevice
6318 11988 AcpiSetGpeType (GpeDevice, GpeNum, ACPI_GPE_TYPE_WAKE_RUN);
6319 11989 AcpiEnableGpe (GpeDevice, GpeNum, ACPI_NOT_ISR);
6320 11990
6321 -For all other devices that have _PRWs, we automatically set the GPE type to
6322 -ACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled. This
6323 -must be done on a selective basis, usually requiring some kind of user app
11991 +For all other devices that have _PRWs, we automatically set the GPE type
11992 +to
11993 +ACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled.
11994 +This
11995 +must be done on a selective basis, usually requiring some kind of user
11996 +app
6324 11997 to allow the user to pick the wake devices.
6325 11998
6326 11999
6327 12000 Code and Data Size: Current and previous core subsystem library sizes are
6328 -shown below. These are the code and data sizes for the acpica.lib produced
12001 +shown below. These are the code and data sizes for the acpica.lib
12002 +produced
6329 12003 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
6330 12004 any ACPI driver or OSPM code. The debug version of the code includes the
6331 -debug output trace mechanism and has a much larger code and data size. Note
6332 -that these values will vary depending on the efficiency of the compiler and
12005 +debug output trace mechanism and has a much larger code and data size.
12006 +Note
12007 +that these values will vary depending on the efficiency of the compiler
12008 +and
6333 12009 the compiler options used during generation.
6334 12010
6335 12011 Previous Release:
6336 12012 Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total
6337 12013 Debug Version: 161.0K Code, 66.3K Data, 227.3K Total
6338 12014 Current Release:
6339 12015
6340 12016 Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total
6341 12017 Debug Version: 162.9K Code, 67.0K Data, 229.9K Total
6342 12018
6343 12019
6344 12020
6345 12021 ----------------------------------------
6346 12022 02 April 2004. Summary of changes for version 20040402:
6347 12023
6348 12024 1) ACPI CA Core Subsystem:
6349 12025
6350 12026 Fixed an interpreter problem where an indirect store through an ArgX
6351 12027 parameter was incorrectly applying the "implicit conversion rules" during
6352 -the store. From the ACPI specification: "If the target is a method local or
12028 +the store. From the ACPI specification: "If the target is a method local
12029 +or
6353 12030 argument (LocalX or ArgX), no conversion is performed and the result is
6354 12031 stored directly to the target". The new behavior is to disable implicit
6355 12032 conversion during ALL stores to an ArgX.
6356 12033
6357 12034 Changed the behavior of the _PRW method scan to ignore any and all errors
6358 12035 returned by a given _PRW. This prevents the scan from aborting from the
6359 12036 failure of any single _PRW.
6360 12037
6361 -Moved the runtime configuration parameters from the global init procedure to
12038 +Moved the runtime configuration parameters from the global init procedure
12039 +to
6362 12040 static variables in acglobal.h. This will allow the host to override the
6363 12041 default values easily.
6364 12042
6365 12043 Code and Data Size: Current and previous core subsystem library sizes are
6366 -shown below. These are the code and data sizes for the acpica.lib produced
12044 +shown below. These are the code and data sizes for the acpica.lib
12045 +produced
6367 12046 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
6368 12047 any ACPI driver or OSPM code. The debug version of the code includes the
6369 -debug output trace mechanism and has a much larger code and data size. Note
6370 -that these values will vary depending on the efficiency of the compiler and
12048 +debug output trace mechanism and has a much larger code and data size.
12049 +Note
12050 +that these values will vary depending on the efficiency of the compiler
12051 +and
6371 12052 the compiler options used during generation.
6372 12053
6373 12054 Previous Release:
6374 12055 Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total
6375 12056 Debug Version: 160.8K Code, 66.1K Data, 226.9K Total
6376 12057 Current Release:
6377 12058 Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total
6378 12059 Debug Version: 161.0K Code, 66.3K Data, 227.3K Total
6379 12060
6380 12061
6381 12062 2) iASL Compiler/Disassembler:
6382 12063
6383 -iASL now fully disassembles SSDTs. However, External() statements are not
12064 +iASL now fully disassembles SSDTs. However, External() statements are
12065 +not
6384 12066 generated automatically for unresolved symbols at this time. This is a
6385 12067 planned feature for future implementation.
6386 12068
6387 -Fixed a scoping problem in the disassembler that occurs when the type of the
12069 +Fixed a scoping problem in the disassembler that occurs when the type of
12070 +the
6388 12071 target of a Scope() operator is overridden. This problem caused an
6389 12072 incorrectly nested internal namespace to be constructed.
6390 12073
6391 -Any warnings or errors that are emitted during disassembly are now commented
6392 -out automatically so that the resulting file can be recompiled without any
12074 +Any warnings or errors that are emitted during disassembly are now
12075 +commented
12076 +out automatically so that the resulting file can be recompiled without
12077 +any
6393 12078 hand editing.
6394 12079
6395 12080 ----------------------------------------
6396 12081 26 March 2004. Summary of changes for version 20040326:
6397 12082
6398 12083 1) ACPI CA Core Subsystem:
6399 12084
6400 12085 Implemented support for "wake" GPEs via interaction between GPEs and the
6401 12086 _PRW methods. Every GPE that is pointed to by one or more _PRWs is
6402 12087 identified as a WAKE GPE and by default will no longer be enabled at
6403 -runtime. Previously, we were blindly enabling all GPEs with a corresponding
6404 -_Lxx or _Exx method - but most of these turn out to be WAKE GPEs anyway. We
12088 +runtime. Previously, we were blindly enabling all GPEs with a
12089 +corresponding
12090 +_Lxx or _Exx method - but most of these turn out to be WAKE GPEs anyway.
12091 +We
6405 12092 believe this has been the cause of thousands of "spurious" GPEs on some
6406 12093 systems.
6407 12094
6408 12095 This new GPE behavior is can be reverted to the original behavior (enable
6409 12096 ALL GPEs at runtime) via a runtime flag.
6410 12097
6411 12098 Fixed a problem where aliased control methods could not access objects
6412 12099 properly. The proper scope within the namespace was not initialized
6413 12100 (transferred to the target of the aliased method) before executing the
6414 12101 target method.
6415 12102
6416 -Fixed a potential race condition on internal object deletion on the return
12103 +Fixed a potential race condition on internal object deletion on the
12104 +return
6417 12105 object in AcpiEvaluateObject.
6418 12106
6419 12107 Integrated a fix for resource descriptors where both _MEM and _MTP were
6420 12108 being extracted instead of just _MEM. (i.e. bitmask was incorrectly too
6421 12109 wide, 0x0F instead of 0x03.)
6422 12110
6423 -Added a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName, preventing a
12111 +Added a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName,
12112 +preventing
12113 +a
6424 12114 fault in some cases.
6425 12115
6426 12116 Updated Notify() values for debug statements in evmisc.c
6427 12117
6428 12118 Return proper status from AcpiUtMutexInitialize, not just simply AE_OK.
6429 12119
6430 12120 Code and Data Size: Current and previous core subsystem library sizes are
6431 -shown below. These are the code and data sizes for the acpica.lib produced
12121 +shown below. These are the code and data sizes for the acpica.lib
12122 +produced
6432 12123 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
6433 12124 any ACPI driver or OSPM code. The debug version of the code includes the
6434 -debug output trace mechanism and has a much larger code and data size. Note
6435 -that these values will vary depending on the efficiency of the compiler and
12125 +debug output trace mechanism and has a much larger code and data size.
12126 +Note
12127 +that these values will vary depending on the efficiency of the compiler
12128 +and
6436 12129 the compiler options used during generation.
6437 12130
6438 12131 Previous Release:
6439 12132
6440 12133 Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total
6441 12134 Debug Version: 160.3K Code, 66.0K Data, 226.3K Total
6442 12135 Current Release:
6443 12136 Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total
6444 12137 Debug Version: 160.8K Code, 66.1K Data, 226.9K Total
6445 12138
6446 12139 ----------------------------------------
6447 12140 11 March 2004. Summary of changes for version 20040311:
6448 12141
6449 12142 1) ACPI CA Core Subsystem:
6450 12143
6451 12144 Fixed a problem where errors occurring during the parse phase of control
6452 12145 method execution did not abort cleanly. For example, objects created and
6453 12146 installed in the namespace were not deleted. This caused all subsequent
6454 12147 invocations of the method to return the AE_ALREADY_EXISTS exception.
6455 12148
6456 -Implemented a mechanism to force a control method to "Serialized" execution
12149 +Implemented a mechanism to force a control method to "Serialized"
12150 +execution
6457 12151 if the method attempts to create namespace objects. (The root of the
6458 12152 AE_ALREADY_EXISTS problem.)
6459 12153
6460 12154 Implemented support for the predefined _OSI "internal" control method.
6461 -Initial supported strings are "Linux", "Windows 2000", "Windows 2001", and
6462 -"Windows 2001.1", and can be easily upgraded for new strings as necessary.
12155 +Initial supported strings are "Linux", "Windows 2000", "Windows 2001",
12156 +and
12157 +"Windows 2001.1", and can be easily upgraded for new strings as
12158 +necessary.
6463 12159 This feature will allow "other" operating systems to execute the fully
6464 12160 tested, "Windows" code path through the ASL code
6465 12161
6466 12162 Global Lock Support: Now allows multiple acquires and releases with any
6467 -internal thread. Removed concept of "owning thread" for this special mutex.
12163 +internal thread. Removed concept of "owning thread" for this special
12164 +mutex.
6468 12165
6469 -Fixed two functions that were inappropriately declaring large objects on the
6470 -CPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage during
12166 +Fixed two functions that were inappropriately declaring large objects on
12167 +the
12168 +CPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage
12169 +during
6471 12170 method execution considerably.
6472 12171
6473 12172 Fixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where the
6474 12173 S4Bios_f field was incorrectly defined as UINT32 instead of UINT32_BIT.
6475 12174
6476 12175 Fixed a problem where AcpiEvGpeDetect would fault if there were no GPEs
6477 12176 defined on the machine.
6478 12177
6479 -Implemented two runtime options: One to force all control method execution
6480 -to "Serialized" to mimic Windows behavior, another to disable _OSI support
12178 +Implemented two runtime options: One to force all control method
12179 +execution
12180 +to "Serialized" to mimic Windows behavior, another to disable _OSI
12181 +support
6481 12182 if it causes problems on a given machine.
6482 12183
6483 12184 Code and Data Size: Current and previous core subsystem library sizes are
6484 -shown below. These are the code and data sizes for the acpica.lib produced
12185 +shown below. These are the code and data sizes for the acpica.lib
12186 +produced
6485 12187 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
6486 12188 any ACPI driver or OSPM code. The debug version of the code includes the
6487 -debug output trace mechanism and has a much larger code and data size. Note
6488 -that these values will vary depending on the efficiency of the compiler and
12189 +debug output trace mechanism and has a much larger code and data size.
12190 +Note
12191 +that these values will vary depending on the efficiency of the compiler
12192 +and
6489 12193 the compiler options used during generation.
6490 12194
6491 12195 Previous Release:
6492 12196 Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total
6493 12197 Debug Version: 158.7K Code, 65.1K Data, 223.8K Total
6494 12198 Current Release:
6495 12199 Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total
6496 12200 Debug Version: 160.3K Code, 66.0K Data, 226.3K Total
6497 12201
6498 12202 2) iASL Compiler/Disassembler:
6499 12203
6500 12204 Fixed an array size problem for FreeBSD that would cause the compiler to
6501 12205 fault.
6502 12206
6503 12207 ----------------------------------------
6504 12208 20 February 2004. Summary of changes for version 20040220:
6505 12209
6506 12210
6507 12211 1) ACPI CA Core Subsystem:
6508 12212
6509 12213 Implemented execution of _SxD methods for Device objects in the
6510 12214 GetObjectInfo interface.
6511 12215
6512 12216 Fixed calls to _SST method to pass the correct arguments.
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6513 12217
6514 12218 Added a call to _SST on wake to restore to "working" state.
6515 12219
6516 12220 Check for End-Of-Buffer failure case in the WalkResources interface.
6517 12221
6518 12222 Integrated fix for 64-bit alignment issue in acglobal.h by moving two
6519 12223 structures to the beginning of the file.
6520 12224
6521 12225 After wake, clear GPE status register(s) before enabling GPEs.
6522 12226
6523 -After wake, clear/enable power button. (Perhaps we should clear/enable all
12227 +After wake, clear/enable power button. (Perhaps we should clear/enable
12228 +all
6524 12229 fixed events upon wake.)
6525 12230
6526 12231 Fixed a couple of possible memory leaks in the Namespace manager.
6527 12232
6528 12233 Integrated latest acnetbsd.h file.
6529 12234
6530 12235 ----------------------------------------
6531 12236 11 February 2004. Summary of changes for version 20040211:
6532 12237
6533 12238
6534 12239 1) ACPI CA Core Subsystem:
6535 12240
6536 12241 Completed investigation and implementation of the call-by-reference
6537 12242 mechanism for control method arguments.
6538 12243
6539 12244 Fixed a problem where a store of an object into an indexed package could
6540 12245 fail if the store occurs within a different method than the method that
6541 12246 created the package.
6542 12247
6543 -Fixed a problem where the ToDecimal operator could return incorrect results.
12248 +Fixed a problem where the ToDecimal operator could return incorrect
12249 +results.
6544 12250
6545 -Fixed a problem where the CopyObject operator could fail on some of the more
12251 +Fixed a problem where the CopyObject operator could fail on some of the
12252 +more
6546 12253 obscure objects (e.g., Reference objects.)
6547 12254
6548 12255 Improved the output of the Debug object to display buffer, package, and
6549 12256 index objects.
6550 12257
6551 -Fixed a problem where constructs of the form "RefOf (ArgX)" did not return
12258 +Fixed a problem where constructs of the form "RefOf (ArgX)" did not
12259 +return
6552 12260 the expected result.
6553 12261
6554 12262 Added permanent ACPI_REPORT_ERROR macros for all instances of the
6555 12263 ACPI_AML_INTERNAL exception.
6556 12264
6557 12265 Integrated latest version of acfreebsd.h
6558 12266
6559 12267 ----------------------------------------
6560 12268 16 January 2004. Summary of changes for version 20040116:
6561 12269
6562 12270 The purpose of this release is primarily to update the copyright years in
6563 12271 each module, thus causing a huge number of diffs. There are a few small
6564 12272 functional changes, however.
6565 12273
6566 12274 1) ACPI CA Core Subsystem:
6567 12275
6568 -Improved error messages when there is a problem finding one or more of the
12276 +Improved error messages when there is a problem finding one or more of
12277 +the
6569 12278 required base ACPI tables
6570 12279
6571 12280 Reintroduced the definition of APIC_HEADER in actbl.h
6572 12281
6573 12282 Changed definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h)
6574 12283
6575 12284 Removed extraneous reference to NewObj in dsmthdat.c
6576 12285
6577 12286 2) iASL compiler
6578 12287
6579 -Fixed a problem introduced in December that disabled the correct disassembly
12288 +Fixed a problem introduced in December that disabled the correct
12289 +disassembly
6580 12290 of Resource Templates
6581 12291
6582 12292
6583 12293 ----------------------------------------
6584 12294 03 December 2003. Summary of changes for version 20031203:
6585 12295
6586 12296 1) ACPI CA Core Subsystem:
6587 12297
6588 12298 Changed the initialization of Operation Regions during subsystem
6589 12299 init to perform two entire walks of the ACPI namespace; The first
6590 12300 to initialize the regions themselves, the second to execute the
6591 12301 _REG methods. This fixed some interdependencies across _REG
6592 12302 methods found on some machines.
6593 12303
6594 12304 Fixed a problem where a Store(Local0, Local1) could simply update
6595 12305 the object reference count, and not create a new copy of the
6596 12306 object if the Local1 is uninitialized.
6597 12307
6598 12308 Implemented support for the _SST reserved method during sleep
6599 12309 transitions.
6600 12310
6601 12311 Implemented support to clear the SLP_TYP and SLP_EN bits when
6602 12312 waking up, this is apparently required by some machines.
6603 12313
6604 12314 When sleeping, clear the wake status only if SleepState is not S5.
6605 12315
6606 12316 Fixed a problem in AcpiRsExtendedIrqResource() where an incorrect
6607 12317 pointer arithmetic advanced a string pointer too far.
6608 12318
6609 12319 Fixed a problem in AcpiTbGetTablePtr() where a garbage pointer
6610 12320 could be returned if the requested table has not been loaded.
6611 12321
6612 12322 Within the support for IRQ resources, restructured the handling of
6613 12323 the active and edge/level bits.
6614 12324
6615 12325 Fixed a few problems in AcpiPsxExecute() where memory could be
6616 12326 leaked under certain error conditions.
6617 12327
6618 12328 Improved error messages for the cases where the ACPI mode could
6619 12329 not be entered.
6620 12330
6621 12331 Code and Data Size: Current and previous core subsystem library
6622 12332 sizes are shown below. These are the code and data sizes for the
6623 12333 acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
6624 12334 these values do not include any ACPI driver or OSPM code. The
6625 12335 debug version of the code includes the debug output trace
6626 12336 mechanism and has a much larger code and data size. Note that
6627 12337 these values will vary depending on the efficiency of the compiler
6628 12338 and the compiler options used during generation.
6629 12339
6630 12340 Previous Release (20031029):
6631 12341 Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total
6632 12342 Debug Version: 158.3K Code, 65.0K Data, 223.3K Total
6633 12343 Current Release:
6634 12344 Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total
6635 12345 Debug Version: 158.7K Code, 65.1K Data, 223.8K Total
6636 12346
6637 12347 2) iASL Compiler/Disassembler:
6638 12348
6639 12349 Implemented a fix for the iASL disassembler where a bad index was
6640 12350 generated. This was most noticeable on 64-bit platforms
6641 12351
6642 12352
6643 12353 ----------------------------------------
6644 12354 29 October 2003. Summary of changes for version 20031029:
6645 12355
6646 12356 1) ACPI CA Core Subsystem:
6647 12357
6648 12358
6649 12359 Fixed a problem where a level-triggered GPE with an associated
6650 12360 _Lxx control method was incorrectly cleared twice.
6651 12361
6652 12362 Fixed a problem with the Field support code where an access can
6653 12363 occur beyond the end-of-region if the field is non-aligned but
6654 12364 extends to the very end of the parent region (resulted in an
6655 12365 AE_AML_REGION_LIMIT exception.)
6656 12366
6657 12367 Fixed a problem with ACPI Fixed Events where an RT Clock handler
6658 12368 would not get invoked on an RTC event. The RTC event bitmasks for
6659 12369 the PM1 registers were not being initialized properly.
6660 12370
6661 12371 Implemented support for executing _STA and _INI methods for
6662 12372 Processor objects. Although this is currently not part of the
6663 12373 ACPI specification, there is existing ASL code that depends on the
6664 12374 init-time execution of these methods.
6665 12375
6666 12376 Implemented and deployed a GetDescriptorName function to decode
6667 12377 the various types of internal descriptors. Guards against null
6668 12378 descriptors during debug output also.
6669 12379
6670 12380 Implemented and deployed a GetNodeName function to extract the 4-
6671 12381 character namespace node name. This function simplifies the debug
6672 12382 and error output, as well as guarding against null pointers during
6673 12383 output.
6674 12384
6675 12385 Implemented and deployed the ACPI_FORMAT_UINT64 helper macro to
6676 12386 simplify the debug and error output of 64-bit integers. This
6677 12387 macro replaces the HIDWORD and LODWORD macros for dumping these
6678 12388 integers.
6679 12389
6680 12390 Updated the implementation of the Stall() operator to only call
6681 12391 AcpiOsStall(), and also return an error if the operand is larger
6682 12392 than 255. This preserves the required behavior of not
6683 12393 relinquishing the processor, as would happen if AcpiOsSleep() was
6684 12394 called for "long stalls".
6685 12395
6686 12396 Constructs of the form "Store(LocalX,LocalX)" where LocalX is not
6687 12397 initialized are now treated as NOOPs.
6688 12398
6689 12399 Cleaned up a handful of warnings during 64-bit generation.
6690 12400
6691 12401 Fixed a reported error where and incorrect GPE number was passed
6692 12402 to the GPE dispatch handler. This value is only used for error
6693 12403 output, however. Used this opportunity to clean up and streamline
6694 12404 the GPE dispatch code.
6695 12405
6696 12406 Code and Data Size: Current and previous core subsystem library
6697 12407 sizes are shown below. These are the code and data sizes for the
6698 12408 acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
6699 12409 these values do not include any ACPI driver or OSPM code. The
6700 12410
6701 12411 debug version of the code includes the debug output trace
6702 12412 mechanism and has a much larger code and data size. Note that
6703 12413 these values will vary depending on the efficiency of the compiler
6704 12414 and the compiler options used during generation.
6705 12415
6706 12416 Previous Release (20031002):
6707 12417 Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total
6708 12418 Debug Version: 157.9K Code, 64.8K Data, 222.7K Total
6709 12419 Current Release:
6710 12420 Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total
6711 12421 Debug Version: 158.3K Code, 65.0K Data, 223.3K Total
6712 12422
6713 12423
6714 12424 2) iASL Compiler/Disassembler:
6715 12425
6716 12426 Updated the iASL compiler to return an error if the operand to the
6717 12427 Stall() operator is larger than 255.
6718 12428
6719 12429
6720 12430 ----------------------------------------
6721 12431 02 October 2003. Summary of changes for version 20031002:
6722 12432
6723 12433
6724 12434 1) ACPI CA Core Subsystem:
6725 12435
6726 12436 Fixed a problem with Index Fields where the index was not
6727 12437 incremented for fields that require multiple writes to the
6728 12438 index/data registers (Fields that are wider than the data
6729 12439 register.)
6730 12440
6731 12441 Fixed a problem with all Field objects where a write could go
6732 12442 beyond the end-of-field if the field was larger than the access
6733 12443 granularity and therefore required multiple writes to complete the
6734 12444 request. An extra write beyond the end of the field could happen
6735 12445 inadvertently.
6736 12446
6737 12447 Fixed a problem with Index Fields where a BUFFER_OVERFLOW error
6738 12448 would incorrectly be returned if the width of the Data Register
6739 12449 was larger than the specified field access width.
6740 12450
6741 12451 Completed fixes for LoadTable() and Unload() and verified their
6742 12452 operation. Implemented full support for the "DdbHandle" object
6743 12453 throughout the ACPI CA subsystem.
6744 12454
6745 12455 Implemented full support for the MADT and ECDT tables in the ACPI
6746 12456 CA header files. Even though these tables are not directly
6747 12457 consumed by ACPI CA, the header definitions are useful for ACPI
6748 12458 device drivers.
6749 12459
6750 12460 Integrated resource descriptor fixes posted to the Linux ACPI
6751 12461 list. This included checks for minimum descriptor length, and
6752 12462 support for trailing NULL strings within descriptors that have
6753 12463 optional string elements.
6754 12464
6755 12465 Code and Data Size: Current and previous core subsystem library
6756 12466 sizes are shown below. These are the code and data sizes for the
6757 12467 acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
6758 12468 these values do not include any ACPI driver or OSPM code. The
6759 12469 debug version of the code includes the debug output trace
6760 12470 mechanism and has a much larger code and data size. Note that
6761 12471 these values will vary depending on the efficiency of the compiler
6762 12472 and the compiler options used during generation.
6763 12473
6764 12474 Previous Release (20030918):
6765 12475 Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total
6766 12476 Debug Version: 157.3K Code, 64.5K Data, 221.8K Total
6767 12477 Current Release:
6768 12478 Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total
6769 12479 Debug Version: 157.9K Code, 64.8K Data, 222.7K Total
6770 12480
6771 12481
6772 12482 2) iASL Compiler:
6773 12483
6774 12484 Implemented detection of non-ASCII characters within the input
6775 12485 source ASL file. This catches attempts to compile binary (AML)
6776 12486 files early in the compile, with an informative error message.
6777 12487
6778 12488 Fixed a problem where the disassembler would fault if the output
6779 12489 filename could not be generated or if the output file could not be
6780 12490 opened.
6781 12491
6782 12492 ----------------------------------------
6783 12493 18 September 2003. Summary of changes for version 20030918:
6784 12494
6785 12495
6786 12496 1) ACPI CA Core Subsystem:
6787 12497
6788 12498 Found and fixed a longstanding problem with the late execution of
6789 12499 the various deferred AML opcodes (such as Operation Regions,
6790 12500 Buffer Fields, Buffers, and Packages). If the name string
6791 12501 specified for the name of the new object placed the object in a
6792 12502 scope other than the current scope, the initialization/execution
6793 12503 of the opcode failed. The solution to this problem was to
6794 12504 implement a mechanism where the late execution of such opcodes
6795 12505 does not attempt to lookup/create the name a second time in an
6796 12506 incorrect scope. This fixes the "region size computed
6797 12507 incorrectly" problem.
6798 12508
6799 12509 Fixed a call to AcpiHwRegisterWrite in hwregs.c that was causing a
6800 12510 Global Lock AE_BAD_PARAMETER error.
6801 12511
6802 12512 Fixed several 64-bit issues with prototypes, casting and data
6803 12513 types.
6804 12514
6805 12515 Removed duplicate prototype from acdisasm.h
6806 12516
6807 12517 Fixed an issue involving EC Operation Region Detach (Shaohua Li)
6808 12518
6809 12519 Code and Data Size: Current and previous core subsystem library
6810 12520 sizes are shown below. These are the code and data sizes for the
6811 12521 acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
6812 12522 these values do not include any ACPI driver or OSPM code. The
6813 12523 debug version of the code includes the debug output trace
6814 12524 mechanism and has a much larger code and data size. Note that
6815 12525 these values will vary depending on the efficiency of the compiler
6816 12526 and the compiler options used during generation.
6817 12527
6818 12528 Previous Release:
6819 12529
6820 12530 Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total
6821 12531 Debug Version: 156.9K Code, 64.2K Data, 221.1K Total
6822 12532 Current Release:
6823 12533 Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total
6824 12534 Debug Version: 157.3K Code, 64.5K Data, 221.8K Total
6825 12535
6826 12536
6827 12537 2) Linux:
6828 12538
6829 12539 Fixed the AcpiOsSleep implementation in osunixxf.c to pass the
6830 12540 correct sleep time in seconds.
6831 12541
6832 12542 ----------------------------------------
6833 12543 14 July 2003. Summary of changes for version 20030619:
6834 12544
6835 12545 1) ACPI CA Core Subsystem:
6836 12546
6837 12547 Parse SSDTs in order discovered, as opposed to reverse order
6838 12548 (Hrvoje Habjanic)
6839 12549
6840 12550 Fixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas
6841 12551 Klausner,
6842 12552 Nate Lawson)
6843 12553
6844 12554
6845 12555 2) Linux:
6846 12556
6847 12557 Dynamically allocate SDT list (suggested by Andi Kleen)
6848 12558
6849 12559 proc function return value cleanups (Andi Kleen)
6850 12560
6851 12561 Correctly handle NMI watchdog during long stalls (Andrew Morton)
6852 12562
6853 12563 Make it so acpismp=force works (reported by Andrew Morton)
6854 12564
6855 12565
6856 12566 ----------------------------------------
6857 12567 19 June 2003. Summary of changes for version 20030619:
6858 12568
6859 12569 1) ACPI CA Core Subsystem:
6860 12570
6861 12571 Fix To/FromBCD, eliminating the need for an arch-specific #define.
6862 12572
6863 12573 Do not acquire a semaphore in the S5 shutdown path.
6864 12574
6865 12575 Fix ex_digits_needed for 0. (Takayoshi Kochi)
6866 12576
6867 12577 Fix sleep/stall code reversal. (Andi Kleen)
6868 12578
6869 12579 Revert a change having to do with control method calling
6870 12580 semantics.
6871 12581
6872 12582 2) Linux:
6873 12583
6874 12584 acpiphp update (Takayoshi Kochi)
6875 12585
6876 12586 Export acpi_disabled for sonypi (Stelian Pop)
6877 12587
6878 12588 Mention acpismp=force in config help
6879 12589
6880 12590 Re-add acpitable.c and acpismp=force. This improves backwards
6881 12591
6882 12592 compatibility and also cleans up the code to a significant degree.
6883 12593
6884 12594 Add ASUS Value-add driver (Karol Kozimor and Julien Lerouge)
6885 12595
6886 12596 ----------------------------------------
6887 12597 22 May 2003. Summary of changes for version 20030522:
6888 12598
6889 12599 1) ACPI CA Core Subsystem:
6890 12600
6891 12601 Found and fixed a reported problem where an AE_NOT_FOUND error
6892 12602 occurred occasionally during _BST evaluation. This turned out to
6893 12603 be an Owner ID allocation issue where a called method did not get
6894 12604 a new ID assigned to it. Eventually, (after 64k calls), the Owner
6895 12605 ID UINT16 would wraparound so that the ID would be the same as the
6896 12606 caller's and the called method would delete the caller's
6897 12607 namespace.
6898 12608
6899 12609 Implemented extended error reporting for control methods that are
6900 12610 aborted due to a run-time exception. Output includes the exact
6901 12611 AML instruction that caused the method abort, a dump of the method
6902 12612 locals and arguments at the time of the abort, and a trace of all
6903 12613 nested control method calls.
6904 12614
6905 12615 Modified the interpreter to allow the creation of buffers of zero
6906 12616 length from the AML code. Implemented new code to ensure that no
6907 12617 attempt is made to actually allocate a memory buffer (of length
6908 12618 zero) - instead, a simple buffer object with a NULL buffer pointer
6909 12619 and length zero is created. A warning is no longer issued when
6910 12620 the AML attempts to create a zero-length buffer.
6911 12621
6912 12622 Implemented a workaround for the "leading asterisk issue" in
6913 12623 _HIDs, _UIDs, and _CIDs in the AML interpreter. One leading
6914 12624 asterisk is automatically removed if present in any HID, UID, or
6915 12625 CID strings. The iASL compiler will still flag this asterisk as
6916 12626 an error, however.
6917 12627
6918 12628 Implemented full support for _CID methods that return a package of
6919 12629 multiple CIDs (Compatible IDs). The AcpiGetObjectInfo() interface
6920 12630 now additionally returns a device _CID list if present. This
6921 12631 required a change to the external interface in order to pass an
6922 12632 ACPI_BUFFER object as a parameter since the _CID list is of
6923 12633 variable length.
6924 12634
6925 12635 Fixed a problem with the new AE_SAME_HANDLER exception where
6926 12636 handler initialization code did not know about this exception.
6927 12637
6928 12638 Code and Data Size: Current and previous core subsystem library
6929 12639 sizes are shown below. These are the code and data sizes for the
6930 12640 acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
6931 12641 these values do not include any ACPI driver or OSPM code. The
6932 12642 debug version of the code includes the debug output trace
6933 12643 mechanism and has a much larger code and data size. Note that
6934 12644 these values will vary depending on the efficiency of the compiler
6935 12645 and the compiler options used during generation.
6936 12646
6937 12647 Previous Release (20030509):
6938 12648 Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total
6939 12649 Debug Version: 156.1K Code, 63.9K Data, 220.0K Total
6940 12650 Current Release:
6941 12651 Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total
6942 12652 Debug Version: 156.9K Code, 64.2K Data, 221.1K Total
6943 12653
6944 12654
6945 12655 2) Linux:
6946 12656
6947 12657 Fixed a bug in which we would reinitialize the ACPI interrupt
6948 12658 after it was already working, thus disabling all ACPI and the IRQs
6949 12659 for any other device sharing the interrupt. (Thanks to Stian
6950 12660 Jordet)
6951 12661
6952 12662 Toshiba driver update (John Belmonte)
6953 12663
6954 12664 Return only 0 or 1 for our interrupt handler status (Andrew
6955 12665 Morton)
6956 12666
6957 12667
6958 12668 3) iASL Compiler:
6959 12669
6960 12670 Fixed a reported problem where multiple (nested) ElseIf()
6961 12671 statements were not handled correctly by the compiler, resulting
6962 12672 in incorrect warnings and incorrect AML code. This was a problem
6963 12673 in both the ASL parser and the code generator.
6964 12674
6965 12675
6966 12676 4) Documentation:
6967 12677
6968 12678 Added changes to existing interfaces, new exception codes, and new
6969 12679 text concerning reference count object management versus garbage
6970 12680 collection.
6971 12681
6972 12682 ----------------------------------------
6973 12683 09 May 2003. Summary of changes for version 20030509.
6974 12684
6975 12685
6976 12686 1) ACPI CA Core Subsystem:
6977 12687
6978 12688 Changed the subsystem initialization sequence to hold off
6979 12689 installation of address space handlers until the hardware has been
6980 12690 initialized and the system has entered ACPI mode. This is because
6981 12691 the installation of space handlers can cause _REG methods to be
6982 12692 run. Previously, the _REG methods could potentially be run before
6983 12693 ACPI mode was enabled.
6984 12694
6985 12695 Fixed some memory leak issues related to address space handler and
6986 12696 notify handler installation. There were some problems with the
6987 12697 reference count mechanism caused by the fact that the handler
6988 12698 objects are shared across several namespace objects.
6989 12699
6990 12700 Fixed a reported problem where reference counts within the
6991 12701 namespace were not properly updated when named objects created by
6992 12702 method execution were deleted.
6993 12703
6994 12704 Fixed a reported problem where multiple SSDTs caused a deletion
6995 12705 issue during subsystem termination. Restructured the table data
6996 12706 structures to simplify the linked lists and the related code.
6997 12707
6998 12708 Fixed a problem where the table ID associated with secondary
6999 12709 tables (SSDTs) was not being propagated into the namespace objects
7000 12710 created by those tables. This would only present a problem for
7001 12711 tables that are unloaded at run-time, however.
7002 12712
7003 12713 Updated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE
7004 12714 type as the length parameter (instead of UINT32).
7005 12715
7006 12716 Solved a long-standing problem where an ALREADY_EXISTS error
7007 12717 appears on various systems. This problem could happen when there
7008 12718 are multiple PCI_Config operation regions under a single PCI root
7009 12719 bus. This doesn't happen very frequently, but there are some
7010 12720 systems that do this in the ASL.
7011 12721
7012 12722 Fixed a reported problem where the internal DeleteNode function
7013 12723 was incorrectly handling the case where a namespace node was the
7014 12724 first in the parent's child list, and had additional peers (not
7015 12725 the only child, but first in the list of children.)
7016 12726
7017 12727 Code and Data Size: Current core subsystem library sizes are shown
7018 12728 below. These are the code and data sizes for the acpica.lib
7019 12729 produced by the Microsoft Visual C++ 6.0 compiler, and these
7020 12730 values do not include any ACPI driver or OSPM code. The debug
7021 12731 version of the code includes the debug output trace mechanism and
7022 12732 has a much larger code and data size. Note that these values will
7023 12733 vary depending on the efficiency of the compiler and the compiler
7024 12734 options used during generation.
7025 12735
7026 12736 Previous Release
7027 12737 Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total
7028 12738 Debug Version: 156.1K Code, 63.6K Data, 219.7K Total
7029 12739 Current Release:
7030 12740 Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total
7031 12741 Debug Version: 156.1K Code, 63.9K Data, 220.0K Total
7032 12742
7033 12743
7034 12744 2) Linux:
7035 12745
7036 12746 Allow ":" in OS override string (Ducrot Bruno)
7037 12747
7038 12748 Kobject fix (Greg KH)
7039 12749
7040 12750
7041 12751 3 iASL Compiler/Disassembler:
7042 12752
7043 12753 Fixed a problem in the generation of the C source code files (AML
7044 12754 is emitted in C source statements for BIOS inclusion) where the
7045 12755 Ascii dump that appears within a C comment at the end of each line
7046 12756 could cause a compile time error if the AML sequence happens to
7047 12757 have an open comment or close comment sequence embedded.
7048 12758
7049 12759
7050 12760 ----------------------------------------
7051 12761 24 April 2003. Summary of changes for version 20030424.
7052 12762
7053 12763
7054 12764 1) ACPI CA Core Subsystem:
7055 12765
7056 12766 Support for big-endian systems has been implemented. Most of the
7057 12767 support has been invisibly added behind big-endian versions of the
7058 12768 ACPI_MOVE_* macros.
7059 12769
7060 12770 Fixed a problem in AcpiHwDisableGpeBlock() and
7061 12771 AcpiHwClearGpeBlock() where an incorrect offset was passed to the
7062 12772 low level hardware write routine. The offset parameter was
7063 12773 actually eliminated from the low level read/write routines because
7064 12774 they had become obsolete.
7065 12775
7066 12776 Fixed a problem where a handler object was deleted twice during
7067 12777 the removal of a fixed event handler.
7068 12778
7069 12779
7070 12780 2) Linux:
7071 12781
7072 12782 A fix for SMP systems with link devices was contributed by
7073 12783
7074 12784 Compaq's Dan Zink.
7075 12785
7076 12786 (2.5) Return whether we handled the interrupt in our IRQ handler.
7077 12787 (Linux ISRs no longer return void, so we can propagate the handler
7078 12788 return value from the ACPI CA core back to the OS.)
7079 12789
7080 12790
7081 12791
7082 12792 3) Documentation:
7083 12793
7084 12794 The ACPI CA Programmer Reference has been updated to reflect new
7085 12795 interfaces and changes to existing interfaces.
7086 12796
7087 12797 ----------------------------------------
7088 12798 28 March 2003. Summary of changes for version 20030328.
7089 12799
7090 12800 1) ACPI CA Core Subsystem:
7091 12801
7092 12802 The GPE Block Device support has been completed. New interfaces
7093 12803 are AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event
7094 12804 interfaces (enable, disable, clear, getstatus) have been split
7095 12805 into separate interfaces for Fixed Events and General Purpose
7096 12806 Events (GPEs) in order to support GPE Block Devices properly.
7097 12807
7098 12808 Fixed a problem where the error message "Failed to acquire
7099 12809 semaphore" would appear during operations on the embedded
7100 12810 controller (EC).
7101 12811
7102 12812 Code and Data Size: Current core subsystem library sizes are shown
7103 12813 below. These are the code and data sizes for the acpica.lib
7104 12814 produced by the Microsoft Visual C++ 6.0 compiler, and these
7105 12815 values do not include any ACPI driver or OSPM code. The debug
7106 12816 version of the code includes the debug output trace mechanism and
7107 12817 has a much larger code and data size. Note that these values will
7108 12818 vary depending on the efficiency of the compiler and the compiler
7109 12819 options used during generation.
7110 12820
7111 12821 Previous Release
7112 12822 Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total
7113 12823 Debug Version: 154.0K Code, 63.4K Data, 217.4K Total
7114 12824 Current Release:
7115 12825 Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total
7116 12826 Debug Version: 156.1K Code, 63.6K Data, 219.7K Total
7117 12827
7118 12828
7119 12829 ----------------------------------------
7120 12830 28 February 2003. Summary of changes for version 20030228.
7121 12831
7122 12832
7123 12833 1) ACPI CA Core Subsystem:
7124 12834
7125 12835 The GPE handling and dispatch code has been completely overhauled
7126 12836 in preparation for support of GPE Block Devices (ID ACPI0006).
7127 12837 This affects internal data structures and code only; there should
7128 12838 be no differences visible externally. One new file has been
7129 12839 added, evgpeblk.c
7130 12840
7131 12841 The FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only
7132 12842 fields that are used to determine the GPE block lengths. The
7133 12843 REGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address
7134 12844 structures are ignored. This is per the ACPI specification but it
7135 12845 isn't very clear. The full 256 Block 0/1 GPEs are now supported
7136 12846 (the use of REGISTER_BIT_WIDTH limited the number of GPEs to 128).
7137 12847
7138 12848 In the SCI interrupt handler, removed the read of the PM1_CONTROL
7139 12849 register to look at the SCI_EN bit. On some machines, this read
7140 12850 causes an SMI event and greatly slows down SCI events. (This may
7141 12851 in fact be the cause of slow battery status response on some
7142 12852 systems.)
7143 12853
7144 12854 Fixed a problem where a store of a NULL string to a package object
7145 12855 could cause the premature deletion of the object. This was seen
7146 12856 during execution of the battery _BIF method on some systems,
7147 12857 resulting in no battery data being returned.
7148 12858
7149 12859 Added AcpiWalkResources interface to simplify parsing of resource
7150 12860 lists.
7151 12861
7152 12862 Code and Data Size: Current core subsystem library sizes are shown
7153 12863 below. These are the code and data sizes for the acpica.lib
7154 12864 produced by the Microsoft Visual C++ 6.0 compiler, and these
7155 12865 values do not include any ACPI driver or OSPM code. The debug
7156 12866 version of the code includes the debug output trace mechanism and
7157 12867 has a much larger code and data size. Note that these values will
7158 12868 vary depending on the efficiency of the compiler and the compiler
7159 12869 options used during generation.
7160 12870
7161 12871 Previous Release
7162 12872 Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total
7163 12873 Debug Version: 153.0K Code, 62.9K Data, 215.9K Total
7164 12874 Current Release:
7165 12875 Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total
7166 12876 Debug Version: 154.0K Code, 63.4K Data, 217.4K Total
7167 12877
7168 12878
7169 12879 2) Linux
7170 12880
7171 12881 S3 fixes (Ole Rohne)
7172 12882
7173 12883 Update ACPI PHP driver with to use new acpi_walk_resource API
7174 12884 (Bjorn Helgaas)
7175 12885
7176 12886 Add S4BIOS support (Pavel Machek)
7177 12887
7178 12888 Map in entire table before performing checksum (John Stultz)
7179 12889
7180 12890 Expand the mem= cmdline to allow the specification of reserved and
7181 12891 ACPI DATA blocks (Pavel Machek)
7182 12892
7183 12893 Never use ACPI on VISWS
7184 12894
7185 12895 Fix derive_pci_id (Ducrot Bruno, Alvaro Lopez)
7186 12896
7187 12897 Revert a change that allowed P_BLK lengths to be 4 or 5. This is
7188 12898 causing us to think that some systems support C2 when they really
7189 12899 don't.
7190 12900
7191 12901 Do not count processor objects for non-present CPUs (Thanks to
7192 12902 Dominik Brodowski)
7193 12903
7194 12904
7195 12905 3) iASL Compiler:
7196 12906
7197 12907 Fixed a problem where ASL include files could not be found and
7198 12908 opened.
7199 12909
7200 12910 Added support for the _PDC reserved name.
7201 12911
7202 12912
7203 12913 ----------------------------------------
7204 12914 22 January 2003. Summary of changes for version 20030122.
7205 12915
7206 12916
7207 12917 1) ACPI CA Core Subsystem:
7208 12918
7209 12919 Added a check for constructs of the form: Store (Local0, Local0)
7210 12920 where Local0 is not initialized. Apparently, some BIOS
7211 12921 programmers believe that this is a NOOP. Since this store doesn't
7212 12922 do anything anyway, the new prototype behavior will ignore this
7213 12923 error. This is a case where we can relax the strict checking in
7214 12924 the interpreter in the name of compatibility.
7215 12925
7216 12926
7217 12927 2) Linux
7218 12928
7219 12929 The AcpiSrc Source Conversion Utility has been released with the
7220 12930 Linux package for the first time. This is the utility that is
7221 12931 used to convert the ACPI CA base source code to the Linux version.
7222 12932
7223 12933 (Both) Handle P_BLK lengths shorter than 6 more gracefully
7224 12934
7225 12935 (Both) Move more headers to include/acpi, and delete an unused
7226 12936 header.
7227 12937
7228 12938 (Both) Move drivers/acpi/include directory to include/acpi
7229 12939
7230 12940 (Both) Boot functions don't use cmdline, so don't pass it around
7231 12941
7232 12942 (Both) Remove include of unused header (Adrian Bunk)
7233 12943
7234 12944 (Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since
7235 12945 the
7236 12946 former now also includes the latter, acpiphp.h only needs the one,
7237 12947 now.
7238 12948
7239 12949 (2.5) Make it possible to select method of bios restoring after S3
7240 12950 resume. [=> no more ugly ifdefs] (Pavel Machek)
7241 12951
7242 12952 (2.5) Make proc write interfaces work (Pavel Machek)
7243 12953
7244 12954 (2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski)
7245 12955
7246 12956 (2.5) Break out ACPI Perf code into its own module, under cpufreq
7247 12957 (Dominik Brodowski)
7248 12958
7249 12959 (2.4) S4BIOS support (Ducrot Bruno)
7250 12960
7251 12961 (2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio
7252 12962 Visinoni)
7253 12963
7254 12964
7255 12965 3) iASL Compiler:
7256 12966
7257 12967 Added support to disassemble SSDT and PSDTs.
7258 12968
7259 12969 Implemented support to obtain SSDTs from the Windows registry if
7260 12970 available.
7261 12971
7262 12972
7263 12973 ----------------------------------------
7264 12974 09 January 2003. Summary of changes for version 20030109.
7265 12975
7266 12976 1) ACPI CA Core Subsystem:
7267 12977
7268 12978 Changed the behavior of the internal Buffer-to-String conversion
7269 12979 function. The current ACPI specification states that the contents
7270 12980 of the buffer are "converted to a string of two-character
7271 12981 hexadecimal numbers, each separated by a space". Unfortunately,
7272 12982 this definition is not backwards compatible with existing ACPI 1.0
7273 12983 implementations (although the behavior was not defined in the ACPI
7274 12984 1.0 specification). The new behavior simply copies data from the
7275 12985 buffer to the string until a null character is found or the end of
7276 12986 the buffer is reached. The new String object is always null
7277 12987 terminated. This problem was seen during the generation of _BIF
7278 12988 battery data where incorrect strings were returned for battery
7279 12989 type, etc. This will also require an errata to the ACPI
7280 12990 specification.
7281 12991
7282 12992 Renamed all instances of NATIVE_UINT and NATIVE_INT to
7283 12993 ACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively.
7284 12994
7285 12995 Copyright in all module headers (both Linux and non-Linux) has be
7286 12996 updated to 2003.
7287 12997
7288 12998 Code and Data Size: Current core subsystem library sizes are shown
7289 12999 below. These are the code and data sizes for the acpica.lib
7290 13000 produced by the Microsoft Visual C++ 6.0 compiler, and these
7291 13001 values do not include any ACPI driver or OSPM code. The debug
7292 13002 version of the code includes the debug output trace mechanism and
7293 13003 has a much larger code and data size. Note that these values will
7294 13004 vary depending on the efficiency of the compiler and the compiler
7295 13005 options used during generation.
7296 13006
7297 13007 Previous Release
7298 13008 Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total
7299 13009 Debug Version: 153.0K Code, 62.9K Data, 215.9K Total
7300 13010 Current Release:
7301 13011 Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total
7302 13012 Debug Version: 153.0K Code, 62.9K Data, 215.9K Total
7303 13013
7304 13014
7305 13015 2) Linux
7306 13016
7307 13017 Fixed an oops on module insertion/removal (Matthew Tippett)
7308 13018
7309 13019 (2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante)
7310 13020
7311 13021 (2.5) Replace pr_debug (Randy Dunlap)
7312 13022
7313 13023 (2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski)
7314 13024
7315 13025 (Both) Eliminate spawning of thread from timer callback, in favor
7316 13026 of schedule_work()
7317 13027
7318 13028 (Both) Show Lid status in /proc (Zdenek OGAR Skalak)
7319 13029
7320 13030 (Both) Added define for Fixed Function HW region (Matthew Wilcox)
7321 13031
7322 13032 (Both) Add missing statics to button.c (Pavel Machek)
7323 13033
7324 13034 Several changes have been made to the source code translation
7325 13035 utility that generates the Linux Code in order to make the code
7326 13036 more "Linux-like":
7327 13037
7328 13038 All typedefs on structs and unions have been removed in keeping
7329 13039 with the Linux coding style.
7330 13040
7331 13041 Removed the non-Linux SourceSafe module revision number from each
7332 13042 module header.
7333 13043
7334 13044 Completed major overhaul of symbols to be lowercased for linux.
7335 13045 Doubled the number of symbols that are lowercased.
7336 13046
7337 13047 Fixed a problem where identifiers within procedure headers and
7338 13048 within quotes were not fully lower cased (they were left with a
7339 13049 starting capital.)
7340 13050
7341 13051 Some C macros whose only purpose is to allow the generation of 16-
7342 13052 bit code are now completely removed in the Linux code, increasing
7343 13053 readability and maintainability.
7344 13054
7345 13055 ----------------------------------------
7346 13056
7347 13057 12 December 2002. Summary of changes for version 20021212.
7348 13058
7349 13059
7350 13060 1) ACPI CA Core Subsystem:
7351 13061
7352 13062 Fixed a problem where the creation of a zero-length AML Buffer
7353 13063 would cause a fault.
7354 13064
7355 13065 Fixed a problem where a Buffer object that pointed to a static AML
7356 13066 buffer (in an ACPI table) could inadvertently be deleted, causing
7357 13067 memory corruption.
7358 13068
7359 13069 Fixed a problem where a user buffer (passed in to the external
7360 13070 ACPI CA interfaces) could be overwritten if the buffer was too
7361 13071 small to complete the operation, causing memory corruption.
7362 13072
7363 13073 Fixed a problem in the Buffer-to-String conversion code where a
7364 13074 string of length one was always returned, regardless of the size
7365 13075 of the input Buffer object.
7366 13076
7367 13077 Removed the NATIVE_CHAR data type across the entire source due to
7368 13078 lack of need and lack of consistent use.
7369 13079
7370 13080 Code and Data Size: Current core subsystem library sizes are shown
7371 13081 below. These are the code and data sizes for the acpica.lib
7372 13082 produced by the Microsoft Visual C++ 6.0 compiler, and these
7373 13083 values do not include any ACPI driver or OSPM code. The debug
7374 13084 version of the code includes the debug output trace mechanism and
7375 13085 has a much larger code and data size. Note that these values will
7376 13086 vary depending on the efficiency of the compiler and the compiler
7377 13087 options used during generation.
7378 13088
7379 13089 Previous Release
7380 13090 Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total
7381 13091 Debug Version: 152.7K Code, 62.7K Data, 215.4K Total
7382 13092 Current Release:
7383 13093 Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total
7384 13094 Debug Version: 153.0K Code, 62.9K Data, 215.9K Total
7385 13095
7386 13096
7387 13097 ----------------------------------------
7388 13098 05 December 2002. Summary of changes for version 20021205.
7389 13099
7390 13100 1) ACPI CA Core Subsystem:
7391 13101
7392 13102 Fixed a problem where a store to a String or Buffer object could
7393 13103 cause corruption of the DSDT if the object type being stored was
7394 13104 the same as the target object type and the length of the object
7395 13105 being stored was equal to or smaller than the original (existing)
7396 13106 target object. This was seen to cause corruption of battery _BIF
7397 13107 buffers if the _BIF method modified the buffer on the fly.
7398 13108
7399 13109 Fixed a problem where an internal error was generated if a control
7400 13110 method invocation was used in an OperationRegion, Buffer, or
7401 13111 Package declaration. This was caused by the deferred parsing of
7402 13112 the control method and thus the deferred creation of the internal
7403 13113 method object. The solution to this problem was to create the
7404 13114 internal method object at the moment the method is encountered in
7405 13115 the first pass - so that subsequent references to the method will
7406 13116 able to obtain the required parameter count and thus properly
7407 13117 parse the method invocation. This problem presented itself as an
7408 13118 AE_AML_INTERNAL during the pass 1 parse phase during table load.
7409 13119
7410 13120 Fixed a problem where the internal String object copy routine did
7411 13121 not always allocate sufficient memory for the target String object
7412 13122 and caused memory corruption. This problem was seen to cause
7413 13123 "Allocation already present in list!" errors as memory allocation
7414 13124 became corrupted.
7415 13125
7416 13126 Implemented a new function for the evaluation of namespace objects
7417 13127 that allows the specification of the allowable return object
7418 13128 types. This simplifies a lot of code that checks for a return
7419 13129 object of one or more specific objects returned from the
7420 13130 evaluation (such as _STA, etc.) This may become and external
7421 13131 function if it would be useful to ACPI-related drivers.
7422 13132
7423 13133 Completed another round of prefixing #defines with "ACPI_" for
7424 13134 clarity.
7425 13135
7426 13136 Completed additional code restructuring to allow more modular
7427 13137 linking for iASL compiler and AcpiExec. Several files were split
7428 13138 creating new files. New files: nsparse.c dsinit.c evgpe.c
7429 13139
7430 13140 Implemented an abort mechanism to terminate an executing control
7431 13141 method via the AML debugger. This feature is useful for debugging
7432 13142 control methods that depend (wait) for specific hardware
7433 13143 responses.
7434 13144
7435 13145 Code and Data Size: Current core subsystem library sizes are shown
7436 13146 below. These are the code and data sizes for the acpica.lib
7437 13147 produced by the Microsoft Visual C++ 6.0 compiler, and these
7438 13148 values do not include any ACPI driver or OSPM code. The debug
7439 13149 version of the code includes the debug output trace mechanism and
7440 13150 has a much larger code and data size. Note that these values will
7441 13151 vary depending on the efficiency of the compiler and the compiler
7442 13152 options used during generation.
7443 13153
7444 13154 Previous Release
7445 13155 Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total
7446 13156 Debug Version: 152.9K Code, 63.3K Data, 216.2K Total
7447 13157 Current Release:
7448 13158 Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total
7449 13159 Debug Version: 152.7K Code, 62.7K Data, 215.4K Total
7450 13160
7451 13161
7452 13162 2) iASL Compiler/Disassembler
7453 13163
7454 13164 Fixed a compiler code generation problem for "Interrupt" Resource
7455 13165 Descriptors. If specified in the ASL, the optional "Resource
7456 13166 Source Index" and "Resource Source" fields were not inserted into
7457 13167 the correct location within the AML resource descriptor, creating
7458 13168 an invalid descriptor.
7459 13169
7460 13170 Fixed a disassembler problem for "Interrupt" resource descriptors.
7461 13171 The optional "Resource Source Index" and "Resource Source" fields
7462 13172 were ignored.
7463 13173
7464 13174
7465 13175 ----------------------------------------
7466 13176 22 November 2002. Summary of changes for version 20021122.
7467 13177
7468 13178
7469 13179 1) ACPI CA Core Subsystem:
7470 13180
7471 13181 Fixed a reported problem where an object stored to a Method Local
7472 13182 or Arg was not copied to a new object during the store - the
7473 13183 object pointer was simply copied to the Local/Arg. This caused
7474 13184 all subsequent operations on the Local/Arg to also affect the
7475 13185 original source of the store operation.
7476 13186
7477 13187 Fixed a problem where a store operation to a Method Local or Arg
7478 13188 was not completed properly if the Local/Arg contained a reference
7479 13189 (from RefOf) to a named field. The general-purpose store-to-
7480 13190 namespace-node code is now used so that this case is handled
7481 13191 automatically.
7482 13192
7483 13193 Fixed a problem where the internal object copy routine would cause
7484 13194 a protection fault if the object being copied was a Package and
7485 13195 contained either 1) a NULL package element or 2) a nested sub-
7486 13196 package.
7487 13197
7488 13198 Fixed a problem with the GPE initialization that resulted from an
7489 13199 ambiguity in the ACPI specification. One section of the
7490 13200 specification states that both the address and length of the GPE
7491 13201 block must be zero if the block is not supported. Another section
7492 13202 implies that only the address need be zero if the block is not
7493 13203 supported. The code has been changed so that both the address and
7494 13204 the length must be non-zero to indicate a valid GPE block (i.e.,
7495 13205 if either the address or the length is zero, the GPE block is
7496 13206 invalid.)
7497 13207
7498 13208 Code and Data Size: Current core subsystem library sizes are shown
7499 13209 below. These are the code and data sizes for the acpica.lib
7500 13210 produced by the Microsoft Visual C++ 6.0 compiler, and these
7501 13211 values do not include any ACPI driver or OSPM code. The debug
7502 13212 version of the code includes the debug output trace mechanism and
7503 13213 has a much larger code and data size. Note that these values will
7504 13214 vary depending on the efficiency of the compiler and the compiler
7505 13215 options used during generation.
7506 13216
7507 13217 Previous Release
7508 13218 Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total
7509 13219 Debug Version: 152.7K Code, 63.2K Data, 215.5K Total
7510 13220 Current Release:
7511 13221 Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total
7512 13222 Debug Version: 152.9K Code, 63.3K Data, 216.2K Total
7513 13223
7514 13224
7515 13225 2) Linux
7516 13226
7517 13227 Cleaned up EC driver. Exported an external EC read/write
7518 13228 interface. By going through this, other drivers (most notably
7519 13229 sonypi) will be able to serialize access to the EC.
7520 13230
7521 13231
7522 13232 3) iASL Compiler/Disassembler
7523 13233
7524 13234 Implemented support to optionally generate include files for both
7525 13235 ASM and C (the -i switch). This simplifies BIOS development by
7526 13236 automatically creating include files that contain external
7527 13237 declarations for the symbols that are created within the
7528 13238
7529 13239 (optionally generated) ASM and C AML source files.
7530 13240
7531 13241
7532 13242 ----------------------------------------
7533 13243 15 November 2002. Summary of changes for version 20021115.
7534 13244
7535 13245 1) ACPI CA Core Subsystem:
7536 13246
7537 13247 Fixed a memory leak problem where an error during resolution of
7538 13248
7539 13249 method arguments during a method invocation from another method
7540 13250 failed to cleanup properly by deleting all successfully resolved
7541 13251 argument objects.
7542 13252
7543 13253 Fixed a problem where the target of the Index() operator was not
7544 13254 correctly constructed if the source object was a package. This
7545 13255 problem has not been detected because the use of a target operand
7546 13256 with Index() is very rare.
7547 13257
7548 13258 Fixed a problem with the Index() operator where an attempt was
7549 13259 made to delete the operand objects twice.
7550 13260
7551 13261 Fixed a problem where an attempt was made to delete an operand
7552 13262 twice during execution of the CondRefOf() operator if the target
7553 13263 did not exist.
7554 13264
7555 13265 Implemented the first of perhaps several internal create object
7556 13266 functions that create and initialize a specific object type. This
7557 13267 consolidates duplicated code wherever the object is created, thus
7558 13268 shrinking the size of the subsystem.
7559 13269
7560 13270 Implemented improved debug/error messages for errors that occur
7561 13271 during nested method invocations. All executing method pathnames
7562 13272 are displayed (with the error) as the call stack is unwound - thus
7563 13273 simplifying debug.
7564 13274
7565 13275 Fixed a problem introduced in the 10/02 release that caused
7566 13276 premature deletion of a buffer object if a buffer was used as an
7567 13277 ASL operand where an integer operand is required (Thus causing an
7568 13278 implicit object conversion from Buffer to Integer.) The change in
7569 13279 the 10/02 release was attempting to fix a memory leak (albeit
7570 13280 incorrectly.)
7571 13281
7572 13282 Code and Data Size: Current core subsystem library sizes are shown
7573 13283 below. These are the code and data sizes for the acpica.lib
7574 13284 produced by the Microsoft Visual C++ 6.0 compiler, and these
7575 13285 values do not include any ACPI driver or OSPM code. The debug
7576 13286 version of the code includes the debug output trace mechanism and
7577 13287 has a much larger code and data size. Note that these values will
7578 13288 vary depending on the efficiency of the compiler and the compiler
7579 13289 options used during generation.
7580 13290
7581 13291 Previous Release
7582 13292 Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total
7583 13293 Debug Version: 153.1K Code, 63.3K Data, 216.4K Total
7584 13294 Current Release:
7585 13295 Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total
7586 13296 Debug Version: 152.7K Code, 63.2K Data, 215.5K Total
7587 13297
7588 13298
7589 13299 2) Linux
7590 13300
7591 13301 Changed the implementation of the ACPI semaphores to use down()
7592 13302 instead of down_interruptable(). It is important that the
7593 13303 execution of ACPI control methods not be interrupted by signals.
7594 13304 Methods must run to completion, or the system may be left in an
7595 13305 unknown/unstable state.
7596 13306
7597 13307 Fixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not set.
7598 13308 (Shawn Starr)
7599 13309
7600 13310
7601 13311 3) iASL Compiler/Disassembler
7602 13312
7603 13313
7604 13314 Changed the default location of output files. All output files
7605 13315 are now placed in the current directory by default instead of in
7606 13316 the directory of the source file. This change may affect some
7607 13317 existing makefiles, but it brings the behavior of the compiler in
7608 13318 line with other similar tools. The location of the output files
7609 13319 can be overridden with the -p command line switch.
7610 13320
7611 13321
7612 13322 ----------------------------------------
7613 13323 11 November 2002. Summary of changes for version 20021111.
7614 13324
7615 13325
7616 13326 0) ACPI Specification 2.0B is released and is now available at:
7617 13327 http://www.acpi.info/index.html
7618 13328
7619 13329
7620 13330 1) ACPI CA Core Subsystem:
7621 13331
7622 13332 Implemented support for the ACPI 2.0 SMBus Operation Regions.
7623 13333 This includes the early detection and handoff of the request to
7624 13334 the SMBus region handler (avoiding all of the complex field
7625 13335 support code), and support for the bidirectional return packet
7626 13336 from an SMBus write operation. This paves the way for the
7627 13337 development of SMBus drivers in each host operating system.
7628 13338
7629 13339 Fixed a problem where the semaphore WAIT_FOREVER constant was
7630 13340 defined as 32 bits, but must be 16 bits according to the ACPI
7631 13341 specification. This had the side effect of causing ASL
7632 13342 Mutex/Event timeouts even though the ASL code requested a wait
7633 13343 forever. Changed all internal references to the ACPI timeout
7634 13344 parameter to 16 bits to prevent future problems. Changed the name
7635 13345 of WAIT_FOREVER to ACPI_WAIT_FOREVER.
7636 13346
7637 13347 Code and Data Size: Current core subsystem library sizes are shown
7638 13348 below. These are the code and data sizes for the acpica.lib
7639 13349 produced by the Microsoft Visual C++ 6.0 compiler, and these
7640 13350 values do not include any ACPI driver or OSPM code. The debug
7641 13351 version of the code includes the debug output trace mechanism and
7642 13352 has a much larger code and data size. Note that these values will
7643 13353 vary depending on the efficiency of the compiler and the compiler
7644 13354 options used during generation.
7645 13355
7646 13356 Previous Release
7647 13357 Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total
7648 13358 Debug Version: 152.3K Code, 63.0K Data, 215.3K Total
7649 13359 Current Release:
7650 13360 Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total
7651 13361 Debug Version: 153.1K Code, 63.3K Data, 216.4K Total
7652 13362
7653 13363
7654 13364 2) Linux
7655 13365
7656 13366 Module loading/unloading fixes (John Cagle)
7657 13367
7658 13368
7659 13369 3) iASL Compiler/Disassembler
7660 13370
7661 13371 Added support for the SMBBlockProcessCall keyword (ACPI 2.0)
7662 13372
7663 13373 Implemented support for the disassembly of all SMBus protocol
7664 13374 keywords (SMBQuick, SMBWord, etc.)
7665 13375
7666 13376 ----------------------------------------
7667 13377 01 November 2002. Summary of changes for version 20021101.
7668 13378
7669 13379
7670 13380 1) ACPI CA Core Subsystem:
7671 13381
7672 13382 Fixed a problem where platforms that have a GPE1 block but no GPE0
7673 13383 block were not handled correctly. This resulted in a "GPE
7674 13384 overlap" error message. GPE0 is no longer required.
7675 13385
7676 13386 Removed code added in the previous release that inserted nodes
7677 13387 into the namespace in alphabetical order. This caused some side-
7678 13388 effects on various machines. The root cause of the problem is
7679 13389 still under investigation since in theory, the internal ordering
7680 13390 of the namespace nodes should not matter.
7681 13391
7682 13392
7683 13393 Enhanced error reporting for the case where a named object is not
7684 13394 found during control method execution. The full ACPI namepath
7685 13395 (name reference) of the object that was not found is displayed in
7686 13396 this case.
7687 13397
7688 13398 Note: as a result of the overhaul of the namespace object types in
7689 13399 the previous release, the namespace nodes for the predefined
7690 13400 scopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE
7691 13401 instead of ACPI_TYPE_ANY. This simplifies the namespace
7692 13402 management code but may affect code that walks the namespace tree
7693 13403 looking for specific object types.
7694 13404
7695 13405 Code and Data Size: Current core subsystem library sizes are shown
7696 13406 below. These are the code and data sizes for the acpica.lib
7697 13407 produced by the Microsoft Visual C++ 6.0 compiler, and these
7698 13408 values do not include any ACPI driver or OSPM code. The debug
7699 13409 version of the code includes the debug output trace mechanism and
7700 13410 has a much larger code and data size. Note that these values will
7701 13411 vary depending on the efficiency of the compiler and the compiler
7702 13412 options used during generation.
7703 13413
7704 13414 Previous Release
7705 13415 Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total
7706 13416 Debug Version: 151.7K Code, 62.4K Data, 214.1K Total
7707 13417 Current Release:
7708 13418 Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total
7709 13419 Debug Version: 152.3K Code, 63.0K Data, 215.3K Total
7710 13420
7711 13421
7712 13422 2) Linux
7713 13423
7714 13424 Fixed a problem introduced in the previous release where the
7715 13425 Processor and Thermal objects were not recognized and installed in
7716 13426 /proc. This was related to the scope type change described above.
7717 13427
7718 13428
7719 13429 3) iASL Compiler/Disassembler
7720 13430
7721 13431 Implemented the -g option to get all of the required ACPI tables
7722 13432 from the registry and save them to files (Windows version of the
7723 13433 compiler only.) The required tables are the FADT, FACS, and DSDT.
7724 13434
7725 13435 Added ACPI table checksum validation during table disassembly in
7726 13436 order to catch corrupted tables.
7727 13437
7728 13438
7729 13439 ----------------------------------------
7730 13440 22 October 2002. Summary of changes for version 20021022.
7731 13441
7732 13442 1) ACPI CA Core Subsystem:
7733 13443
7734 13444 Implemented a restriction on the Scope operator that the target
7735 13445 must already exist in the namespace at the time the operator is
7736 13446 encountered (during table load or method execution). In other
7737 13447 words, forward references are not allowed and Scope() cannot
7738 13448 create a new object. This changes the previous behavior where the
7739 13449 interpreter would create the name if not found. This new behavior
7740 13450 correctly enables the search-to-root algorithm during namespace
7741 13451 lookup of the target name. Because of this upsearch, this fixes
7742 13452 the known Compaq _SB_.OKEC problem and makes both the AML
7743 13453 interpreter and iASL compiler compatible with other ACPI
7744 13454 implementations.
7745 13455
7746 13456 Completed a major overhaul of the internal ACPI object types for
7747 13457 the ACPI Namespace and the associated operand objects. Many of
7748 13458 these types had become obsolete with the introduction of the two-
7749 13459 pass namespace load. This cleanup simplifies the code and makes
7750 13460 the entire namespace load mechanism much clearer and easier to
7751 13461 understand.
7752 13462
7753 13463 Improved debug output for tracking scope opening/closing to help
7754 13464 diagnose scoping issues. The old scope name as well as the new
7755 13465 scope name are displayed. Also improved error messages for
7756 13466 problems with ASL Mutex objects and error messages for GPE
7757 13467 problems.
7758 13468
7759 13469 Cleaned up the namespace dump code, removed obsolete code.
7760 13470
7761 13471 All string output (for all namespace/object dumps) now uses the
7762 13472 common ACPI string output procedure which handles escapes properly
7763 13473 and does not emit non-printable characters.
7764 13474
7765 13475 Fixed some issues with constants in the 64-bit version of the
7766 13476 local C library (utclib.c)
7767 13477
7768 13478
7769 13479 2) Linux
7770 13480
7771 13481 EC Driver: No longer attempts to acquire the Global Lock at
7772 13482 interrupt level.
7773 13483
7774 13484
7775 13485 3) iASL Compiler/Disassembler
7776 13486
7777 13487 Implemented ACPI 2.0B grammar change that disallows all Type 1 and
7778 13488 2 opcodes outside of a control method. This means that the
7779 13489 "executable" operators (versus the "namespace" operators) cannot
7780 13490 be used at the table level; they can only be used within a control
7781 13491 method.
7782 13492
7783 13493 Implemented the restriction on the Scope() operator where the
7784 13494 target must already exist in the namespace at the time the
7785 13495 operator is encountered (during ASL compilation). In other words,
7786 13496 forward references are not allowed and Scope() cannot create a new
7787 13497 object. This makes the iASL compiler compatible with other ACPI
7788 13498 implementations and makes the Scope() implementation adhere to the
7789 13499 ACPI specification.
7790 13500
7791 13501 Fixed a problem where namepath optimization for the Alias operator
7792 13502 was optimizing the wrong path (of the two namepaths.) This caused
7793 13503 a "Missing alias link" error message.
7794 13504
7795 13505 Fixed a problem where an "unknown reserved name" warning could be
7796 13506 incorrectly generated for names like "_SB" when the trailing
7797 13507 underscore is not used in the original ASL.
7798 13508
7799 13509 Fixed a problem where the reserved name check did not handle
7800 13510 NamePaths with multiple NameSegs correctly. The first nameseg of
7801 13511 the NamePath was examined instead of the last NameSeg.
7802 13512
7803 13513
7804 13514 ----------------------------------------
7805 13515
7806 13516 02 October 2002. Summary of changes for this release.
7807 13517
7808 13518
7809 13519 1) ACPI CA Core Subsystem version 20021002:
7810 13520
7811 13521 Fixed a problem where a store/copy of a string to an existing
7812 13522 string did not always set the string length properly in the String
7813 13523 object.
7814 13524
7815 13525 Fixed a reported problem with the ToString operator where the
7816 13526 behavior was identical to the ToHexString operator instead of just
7817 13527 simply converting a raw buffer to a string data type.
7818 13528
7819 13529 Fixed a problem where CopyObject and the other "explicit"
7820 13530 conversion operators were not updating the internal namespace node
7821 13531 type as part of the store operation.
7822 13532
7823 13533 Fixed a memory leak during implicit source operand conversion
7824 13534 where the original object was not deleted if it was converted to a
7825 13535 new object of a different type.
7826 13536
7827 13537 Enhanced error messages for all problems associated with namespace
7828 13538 lookups. Common procedure generates and prints the lookup name as
7829 13539 well as the formatted status.
7830 13540
7831 13541 Completed implementation of a new design for the Alias support
7832 13542 within the namespace. The existing design did not handle the case
7833 13543 where a new object was assigned to one of the two names due to the
7834 13544 use of an explicit conversion operator, resulting in the two names
7835 13545 pointing to two different objects. The new design simply points
7836 13546 the Alias name to the original name node - not to the object.
7837 13547 This results in a level of indirection that must be handled in the
7838 13548 name resolution mechanism.
7839 13549
7840 13550 Code and Data Size: Current core subsystem library sizes are shown
7841 13551 below. These are the code and data sizes for the acpica.lib
7842 13552 produced by the Microsoft Visual C++ 6.0 compiler, and these
7843 13553 values do not include any ACPI driver or OSPM code. The debug
7844 13554 version of the code includes the debug output trace mechanism and
7845 13555 has a larger code and data size. Note that these values will vary
7846 13556 depending on the efficiency of the compiler and the compiler
7847 13557 options used during generation.
7848 13558
7849 13559 Previous Release
7850 13560 Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total
7851 13561 Debug Version: 150.0K Code, 61.7K Data, 211.7K Total
7852 13562 Current Release:
7853 13563 Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total
7854 13564 Debug Version: 151.7K Code, 62.4K Data, 214.1K Total
7855 13565
7856 13566
7857 13567 2) Linux
7858 13568
7859 13569 Initialize thermal driver's timer before it is used. (Knut
7860 13570 Neumann)
7861 13571
7862 13572 Allow handling negative celsius values. (Kochi Takayoshi)
7863 13573
7864 13574 Fix thermal management and make trip points. R/W (Pavel Machek)
7865 13575
7866 13576 Fix /proc/acpi/sleep. (P. Christeas)
7867 13577
7868 13578 IA64 fixes. (David Mosberger)
7869 13579
7870 13580 Fix reversed logic in blacklist code. (Sergio Monteiro Basto)
7871 13581
7872 13582 Replace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik
7873 13583 Brodowski)
7874 13584
7875 13585
7876 13586 3) iASL Compiler/Disassembler
7877 13587
7878 13588 Clarified some warning/error messages.
7879 13589
7880 13590
7881 13591 ----------------------------------------
7882 13592 18 September 2002. Summary of changes for this release.
7883 13593
7884 13594
7885 13595 1) ACPI CA Core Subsystem version 20020918:
7886 13596
7887 13597 Fixed a reported problem with reference chaining (via the Index()
7888 13598 and RefOf() operators) in the ObjectType() and SizeOf() operators.
7889 13599 The definition of these operators includes the dereferencing of
7890 13600 all chained references to return information on the base object.
7891 13601
7892 13602 Fixed a problem with stores to indexed package elements - the
7893 13603 existing code would not complete the store if an "implicit
7894 13604 conversion" was not performed. In other words, if the existing
7895 13605 object (package element) was to be replaced completely, the code
7896 13606 didn't handle this case.
7897 13607
7898 13608 Relaxed typechecking on the ASL "Scope" operator to allow the
7899 13609 target name to refer to an object of type Integer, String, or
7900 13610 Buffer, in addition to the scoping object types (Device,
7901 13611 predefined Scopes, Processor, PowerResource, and ThermalZone.)
7902 13612 This allows existing AML code that has workarounds for a bug in
7903 13613 Windows to function properly. A warning is issued, however. This
7904 13614 affects both the AML interpreter and the iASL compiler. Below is
7905 13615 an example of this type of ASL code:
7906 13616
7907 13617 Name(DEB,0x00)
7908 13618 Scope(DEB)
7909 13619 {
7910 13620
7911 13621 Fixed some reported problems with 64-bit integer support in the
7912 13622 local implementation of C library functions (clib.c)
7913 13623
7914 13624
7915 13625 2) Linux
7916 13626
7917 13627 Use ACPI fix map region instead of IOAPIC region, since it is
7918 13628 undefined in non-SMP.
7919 13629
7920 13630 Ensure that the SCI has the proper polarity and trigger, even on
7921 13631 systems that do not have an interrupt override entry in the MADT.
7922 13632
7923 13633 2.5 big driver reorganization (Pat Mochel)
7924 13634
7925 13635 Use early table mapping code from acpitable.c (Andi Kleen)
7926 13636
7927 13637 New blacklist entries (Andi Kleen)
7928 13638
7929 13639 Blacklist improvements. Split blacklist code out into a separate
7930 13640 file. Move checking the blacklist to very early. Previously, we
7931 13641 would use ACPI tables, and then halfway through init, check the
7932 13642 blacklist -- too late. Now, it's early enough to completely fall-
7933 13643 back to non-ACPI.
7934 13644
7935 13645
7936 13646 3) iASL Compiler/Disassembler version 20020918:
7937 13647
7938 13648 Fixed a problem where the typechecking code didn't know that an
7939 13649 alias could point to a method. In other words, aliases were not
7940 13650 being dereferenced during typechecking.
7941 13651
7942 13652
7943 13653 ----------------------------------------
7944 13654 29 August 2002. Summary of changes for this release.
7945 13655
7946 13656 1) ACPI CA Core Subsystem Version 20020829:
7947 13657
7948 13658 If the target of a Scope() operator already exists, it must be an
7949 13659 object type that actually opens a scope -- such as a Device,
7950 13660 Method, Scope, etc. This is a fatal runtime error. Similar error
7951 13661 check has been added to the iASL compiler also.
7952 13662
7953 13663 Tightened up the namespace load to disallow multiple names in the
7954 13664 same scope. This previously was allowed if both objects were of
7955 13665 the same type. (i.e., a lookup was the same as entering a new
7956 13666 name).
7957 13667
7958 13668
7959 13669 2) Linux
7960 13670
7961 13671 Ensure that the ACPI interrupt has the proper trigger and
7962 13672 polarity.
7963 13673
7964 13674 local_irq_disable is extraneous. (Matthew Wilcox)
7965 13675
7966 13676 Make "acpi=off" actually do what it says, and not use the ACPI
7967 13677 interpreter *or* the tables.
7968 13678
7969 13679 Added arch-neutral support for parsing SLIT and SRAT tables (Kochi
7970 13680 Takayoshi)
7971 13681
7972 13682
7973 13683 3) iASL Compiler/Disassembler Version 20020829:
7974 13684
7975 13685 Implemented namepath optimization for name declarations. For
7976 13686 example, a declaration like "Method (\_SB_.ABCD)" would get
7977 13687 optimized to "Method (ABCD)" if the declaration is within the
7978 13688 \_SB_ scope. This optimization is in addition to the named
7979 13689 reference path optimization first released in the previous
7980 13690 version. This would seem to complete all possible optimizations
7981 13691 for namepaths within the ASL/AML.
7982 13692
7983 13693 If the target of a Scope() operator already exists, it must be an
7984 13694 object type that actually opens a scope -- such as a Device,
7985 13695 Method, Scope, etc.
7986 13696
7987 13697 Implemented a check and warning for unreachable code in the same
7988 13698 block below a Return() statement.
7989 13699
7990 13700 Fixed a problem where the listing file was not generated if the
7991 13701 compiler aborted if the maximum error count was exceeded (200).
7992 13702
7993 13703 Fixed a problem where the typechecking of method return values was
7994 13704 broken. This includes the check for a return value when the
7995 13705 method is invoked as a TermArg (a return value is expected.)
7996 13706
7997 13707 Fixed a reported problem where EOF conditions during a quoted
7998 13708 string or comment caused a fault.
7999 13709
8000 13710
8001 13711 ----------------------------------------
8002 13712 15 August 2002. Summary of changes for this release.
8003 13713
8004 13714 1) ACPI CA Core Subsystem Version 20020815:
8005 13715
8006 13716 Fixed a reported problem where a Store to a method argument that
8007 13717 contains a reference did not perform the indirect store correctly.
8008 13718 This problem was created during the conversion to the new
8009 13719 reference object model - the indirect store to a method argument
8010 13720 code was not updated to reflect the new model.
8011 13721
8012 13722 Reworked the ACPI mode change code to better conform to ACPI 2.0,
8013 13723 handle corner cases, and improve code legibility (Kochi Takayoshi)
8014 13724
8015 13725 Fixed a problem with the pathname parsing for the carat (^)
8016 13726 prefix. The heavy use of the carat operator by the new namepath
8017 13727 optimization in the iASL compiler uncovered a problem with the AML
8018 13728 interpreter handling of this prefix. In the case where one or
8019 13729 more carats precede a single nameseg, the nameseg was treated as
8020 13730 standalone and the search rule (to root) was inadvertently
8021 13731 applied. This could cause both the iASL compiler and the
8022 13732 interpreter to find the wrong object or to miss the error that
8023 13733 should occur if the object does not exist at that exact pathname.
8024 13734
8025 13735 Found and fixed the problem where the HP Pavilion DSDT would not
8026 13736 load. This was a relatively minor tweak to the table loading code
8027 13737 (a problem caused by the unexpected encounter with a method
8028 13738 invocation not within a control method), but it does not solve the
8029 13739 overall issue of the execution of AML code at the table level.
8030 13740 This investigation is still ongoing.
8031 13741
8032 13742 Code and Data Size: Current core subsystem library sizes are shown
8033 13743 below. These are the code and data sizes for the acpica.lib
8034 13744 produced by the Microsoft Visual C++ 6.0 compiler, and these
8035 13745 values do not include any ACPI driver or OSPM code. The debug
8036 13746 version of the code includes the debug output trace mechanism and
8037 13747 has a larger code and data size. Note that these values will vary
8038 13748 depending on the efficiency of the compiler and the compiler
8039 13749 options used during generation.
8040 13750
8041 13751 Previous Release
8042 13752 Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total
8043 13753 Debug Version: 149.4K Code, 61.6K Data, 211.0K Total
8044 13754 Current Release:
8045 13755 Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total
8046 13756 Debug Version: 150.0K Code, 61.7K Data, 211.7K Total
8047 13757
8048 13758
8049 13759 2) Linux
8050 13760
8051 13761 Remove redundant slab.h include (Brad Hards)
8052 13762
8053 13763 Fix several bugs in thermal.c (Herbert Nachtnebel)
8054 13764
8055 13765 Make CONFIG_ACPI_BOOT work properly (Pavel Machek)
8056 13766
8057 13767 Change acpi_system_suspend to use updated irq functions (Pavel
8058 13768 Machek)
8059 13769
8060 13770 Export acpi_get_firmware_table (Matthew Wilcox)
8061 13771
8062 13772 Use proper root proc entry for ACPI (Kochi Takayoshi)
8063 13773
8064 13774 Fix early-boot table parsing (Bjorn Helgaas)
8065 13775
8066 13776
8067 13777 3) iASL Compiler/Disassembler
8068 13778
8069 13779 Reworked the compiler options to make them more consistent and to
8070 13780 use two-letter options where appropriate. We were running out of
8071 13781 sensible letters. This may break some makefiles, so check the
8072 13782 current options list by invoking the compiler with no parameters.
8073 13783
8074 13784 Completed the design and implementation of the ASL namepath
8075 13785 optimization option for the compiler. This option optimizes all
8076 13786 references to named objects to the shortest possible path. The
8077 13787 first attempt tries to utilize a single nameseg (4 characters) and
8078 13788 the "search-to-root" algorithm used by the interpreter. If that
8079 13789 cannot be used (because either the name is not in the search path
8080 13790 or there is a conflict with another object with the same name),
8081 13791 the pathname is optimized using the carat prefix (usually a
8082 13792 shorter string than specifying the entire path from the root.)
8083 13793
8084 13794 Implemented support to obtain the DSDT from the Windows registry
8085 13795 (when the disassembly option is specified with no input file).
8086 13796 Added this code as the implementation for AcpiOsTableOverride in
8087 13797 the Windows OSL. Migrated the 16-bit code (used in the AcpiDump
8088 13798 utility) to scan memory for the DSDT to the AcpiOsTableOverride
8089 13799 function in the DOS OSL to make the disassembler truly OS
8090 13800 independent.
8091 13801
8092 13802 Implemented a new option to disassemble and compile in one step.
8093 13803 When used without an input filename, this option will grab the
8094 13804 DSDT from the local machine, disassemble it, and compile it in one
8095 13805 step.
8096 13806
8097 13807 Added a warning message for invalid escapes (a backslash followed
8098 13808 by any character other than the allowable escapes). This catches
8099 13809 the quoted string error "\_SB_" (which should be "\\_SB_" ).
8100 13810
8101 13811 Also, there are numerous instances in the ACPI specification where
8102 13812 this error occurs.
8103 13813
8104 13814 Added a compiler option to disable all optimizations. This is
8105 13815 basically the "compatibility mode" because by using this option,
8106 13816 the AML code will come out exactly the same as other ASL
8107 13817 compilers.
8108 13818
8109 13819 Added error messages for incorrectly ordered dependent resource
8110 13820 functions. This includes: missing EndDependentFn macro at end of
8111 13821 dependent resource list, nested dependent function macros (both
8112 13822 start and end), and missing StartDependentFn macro. These are
8113 13823 common errors that should be caught at compile time.
8114 13824
8115 13825 Implemented _OSI support for the disassembler and compiler. _OSI
8116 13826 must be included in the namespace for proper disassembly (because
8117 13827 the disassembler must know the number of arguments.)
8118 13828
8119 13829 Added an "optimization" message type that is optional (off by
8120 13830 default). This message is used for all optimizations - including
8121 13831 constant folding, integer optimization, and namepath optimization.
8122 13832
8123 13833 ----------------------------------------
8124 13834 25 July 2002. Summary of changes for this release.
8125 13835
8126 13836
8127 13837 1) ACPI CA Core Subsystem Version 20020725:
8128 13838
8129 13839 The AML Disassembler has been enhanced to produce compilable ASL
8130 13840 code and has been integrated into the iASL compiler (see below) as
8131 13841 well as the single-step disassembly for the AML debugger and the
8132 13842 disassembler for the AcpiDump utility. All ACPI 2.0A opcodes,
8133 13843 resource templates and macros are fully supported. The
8134 13844 disassembler has been tested on over 30 different AML files,
8135 13845 producing identical AML when the resulting disassembled ASL file
8136 13846 is recompiled with the same ASL compiler.
8137 13847
8138 13848 Modified the Resource Manager to allow zero interrupts and zero
8139 13849 dma channels during the GetCurrentResources call. This was
8140 13850 causing problems on some platforms.
8141 13851
8142 13852 Added the AcpiOsRedirectOutput interface to the OSL to simplify
8143 13853 output redirection for the AcpiOsPrintf and AcpiOsVprintf
8144 13854 interfaces.
8145 13855
8146 13856 Code and Data Size: Current core subsystem library sizes are shown
8147 13857 below. These are the code and data sizes for the acpica.lib
8148 13858 produced by the Microsoft Visual C++ 6.0 compiler, and these
8149 13859 values do not include any ACPI driver or OSPM code. The debug
8150 13860 version of the code includes the debug output trace mechanism and
8151 13861 has a larger code and data size. Note that these values will vary
8152 13862 depending on the efficiency of the compiler and the compiler
8153 13863 options used during generation.
8154 13864
8155 13865 Previous Release
8156 13866 Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total
8157 13867 Debug Version: 142.9K Code, 58.7K Data, 201.6K Total
8158 13868 Current Release:
8159 13869 Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total
8160 13870 Debug Version: 149.4K Code, 61.6K Data, 211.0K Total
8161 13871
8162 13872
8163 13873 2) Linux
8164 13874
8165 13875 Fixed a panic in the EC driver (Dominik Brodowski)
8166 13876
8167 13877 Implemented checksum of the R/XSDT itself during Linux table scan
8168 13878 (Richard Schaal)
8169 13879
8170 13880
8171 13881 3) iASL compiler
8172 13882
8173 13883 The AML disassembler is integrated into the compiler. The "-d"
8174 13884 option invokes the disassembler to completely disassemble an
8175 13885 input AML file, producing as output a text ASL file with the
8176 13886 extension ".dsl" (to avoid name collisions with existing .asl
8177 13887 source files.) A future enhancement will allow the disassembler
8178 13888 to obtain the BIOS DSDT from the registry under Windows.
8179 13889
8180 13890 Fixed a problem with the VendorShort and VendorLong resource
8181 13891 descriptors where an invalid AML sequence was created.
8182 13892
8183 13893 Implemented a fix for BufferData term in the ASL parser. It was
8184 13894 inadvertently defined twice, allowing invalid syntax to pass and
8185 13895 causing reduction conflicts.
8186 13896
8187 13897 Fixed a problem where the Ones opcode could get converted to a
8188 13898 value of zero if "Ones" was used where a byte, word or dword value
8189 13899 was expected. The 64-bit value is now truncated to the correct
8190 13900 size with the correct value.
8191 13901
8192 13902
8193 13903
8194 13904 ----------------------------------------
8195 13905 02 July 2002. Summary of changes for this release.
8196 13906
8197 13907
8198 13908 1) ACPI CA Core Subsystem Version 20020702:
8199 13909
8200 13910 The Table Manager code has been restructured to add several new
8201 13911 features. Tables that are not required by the core subsystem
8202 13912 (other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer
8203 13913 validated in any way and are returned from AcpiGetFirmwareTable if
8204 13914 requested. The AcpiOsTableOverride interface is now called for
8205 13915 each table that is loaded by the subsystem in order to allow the
8206 13916 host to override any table it chooses. Previously, only the DSDT
8207 13917 could be overridden. Added one new files, tbrsdt.c and
8208 13918 tbgetall.c.
8209 13919
8210 13920 Fixed a problem with the conversion of internal package objects to
8211 13921 external objects (when a package is returned from a control
8212 13922 method.) The return buffer length was set to zero instead of the
8213 13923 proper length of the package object.
8214 13924
8215 13925 Fixed a reported problem with the use of the RefOf and DeRefOf
8216 13926 operators when passing reference arguments to control methods. A
8217 13927 new type of Reference object is used internally for references
8218 13928 produced by the RefOf operator.
8219 13929
8220 13930 Added additional error messages in the Resource Manager to explain
8221 13931 AE_BAD_DATA errors when they occur during resource parsing.
8222 13932
8223 13933 Split the AcpiEnableSubsystem into two primitives to enable a
8224 13934 finer granularity initialization sequence. These two calls should
8225 13935 be called in this order: AcpiEnableSubsystem (flags),
8226 13936 AcpiInitializeObjects (flags). The flags parameter remains the
8227 13937 same.
8228 13938
8229 13939
8230 13940 2) Linux
8231 13941
8232 13942 Updated the ACPI utilities module to understand the new style of
8233 13943 fully resolved package objects that are now returned from the core
8234 13944 subsystem. This eliminates errors of the form:
8235 13945
8236 13946 ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT]
8237 13947 acpi_utils-0430 [145] acpi_evaluate_reference:
8238 13948 Invalid element in package (not a device reference)
8239 13949
8240 13950 The method evaluation utility uses the new buffer allocation
8241 13951 scheme instead of calling AcpiEvaluate Object twice.
8242 13952
8243 13953 Added support for ECDT. This allows the use of the Embedded
8244 13954
8245 13955 Controller before the namespace has been fully initialized, which
8246 13956 is necessary for ACPI 2.0 support, and for some laptops to
8247 13957 initialize properly. (Laptops using ECDT are still rare, so only
8248 13958 limited testing was performed of the added functionality.)
8249 13959
8250 13960 Fixed memory leaks in the EC driver.
8251 13961
8252 13962 Eliminated a brittle code structure in acpi_bus_init().
8253 13963
8254 13964 Eliminated the acpi_evaluate() helper function in utils.c. It is
8255 13965 no longer needed since acpi_evaluate_object can optionally
8256 13966 allocate memory for the return object.
8257 13967
8258 13968 Implemented fix for keyboard hang when getting battery readings on
8259 13969 some systems (Stephen White)
8260 13970
8261 13971 PCI IRQ routing update (Dominik Brodowski)
8262 13972
8263 13973 Fix an ifdef to allow compilation on UP with LAPIC but no IOAPIC
8264 13974 support
8265 13975
8266 13976 ----------------------------------------
8267 13977 11 June 2002. Summary of changes for this release.
8268 13978
8269 13979
8270 13980 1) ACPI CA Core Subsystem Version 20020611:
8271 13981
8272 13982 Fixed a reported problem where constants such as Zero and One
8273 13983 appearing within _PRT packages were not handled correctly within
8274 13984 the resource manager code. Originally reported against the ASL
8275 13985 compiler because the code generator now optimizes integers to
8276 13986 their minimal AML representation (i.e. AML constants if possible.)
8277 13987 The _PRT code now handles all AML constant opcodes correctly
8278 13988 (Zero, One, Ones, Revision).
8279 13989
8280 13990 Fixed a problem with the Concatenate operator in the AML
8281 13991 interpreter where a buffer result object was incorrectly marked as
8282 13992 not fully evaluated, causing a run-time error of AE_AML_INTERNAL.
8283 13993
8284 13994 All package sub-objects are now fully resolved before they are
8285 13995 returned from the external ACPI interfaces. This means that name
8286 13996 strings are resolved to object handles, and constant operators
8287 13997 (Zero, One, Ones, Revision) are resolved to Integers.
8288 13998
8289 13999 Implemented immediate resolution of the AML Constant opcodes
8290 14000 (Zero, One, Ones, Revision) to Integer objects upon detection
8291 14001 within the AML stream. This has simplified and reduced the
8292 14002 generated code size of the subsystem by eliminating about 10
8293 14003 switch statements for these constants (which previously were
8294 14004 contained in Reference objects.) The complicating issues are that
8295 14005 the Zero opcode is used as a "placeholder" for unspecified
8296 14006 optional target operands and stores to constants are defined to be
8297 14007 no-ops.
8298 14008
8299 14009 Code and Data Size: Current core subsystem library sizes are shown
8300 14010 below. These are the code and data sizes for the acpica.lib
8301 14011 produced by the Microsoft Visual C++ 6.0 compiler, and these
8302 14012 values do not include any ACPI driver or OSPM code. The debug
8303 14013 version of the code includes the debug output trace mechanism and
8304 14014 has a larger code and data size. Note that these values will vary
8305 14015 depending on the efficiency of the compiler and the compiler
8306 14016 options used during generation.
8307 14017
8308 14018 Previous Release
8309 14019 Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total
8310 14020 Debug Version: 143.8K Code, 58.8K Data, 202.6K Total
8311 14021 Current Release:
8312 14022 Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total
8313 14023 Debug Version: 142.9K Code, 58.7K Data, 201.6K Total
8314 14024
8315 14025
8316 14026 2) Linux
8317 14027
8318 14028
8319 14029 Added preliminary support for obtaining _TRA data for PCI root
8320 14030 bridges (Bjorn Helgaas).
8321 14031
8322 14032
8323 14033 3) iASL Compiler Version X2046:
8324 14034
8325 14035 Fixed a problem where the "_DDN" reserved name was defined to be a
8326 14036 control method with one argument. There are no arguments, and
8327 14037 _DDN does not have to be a control method.
8328 14038
8329 14039 Fixed a problem with the Linux version of the compiler where the
8330 14040 source lines printed with error messages were the wrong lines.
8331 14041 This turned out to be the "LF versus CR/LF" difference between
8332 14042 Windows and Unix. This appears to be the longstanding issue
8333 14043 concerning listing output and error messages.
8334 14044
8335 14045 Fixed a problem with the Linux version of compiler where opcode
8336 14046 names within error messages were wrong. This was caused by a
8337 14047 slight difference in the output of the Flex tool on Linux versus
8338 14048 Windows.
8339 14049
8340 14050 Fixed a problem with the Linux compiler where the hex output files
8341 14051 contained some garbage data caused by an internal buffer overrun.
8342 14052
8343 14053
8344 14054 ----------------------------------------
8345 14055 17 May 2002. Summary of changes for this release.
8346 14056
8347 14057
8348 14058 1) ACPI CA Core Subsystem Version 20020517:
8349 14059
8350 14060 Implemented a workaround to an BIOS bug discovered on the HP
8351 14061 OmniBook where the FADT revision number and the table size are
8352 14062 inconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The new
8353 14063 behavior is to fallback to using only the ACPI 1.0 fields of the
8354 14064 FADT if the table is too small to be a ACPI 2.0 table as claimed
8355 14065 by the revision number. Although this is a BIOS bug, this is a
8356 14066 case where the workaround is simple enough and with no side
8357 14067 effects, so it seemed prudent to add it. A warning message is
8358 14068 issued, however.
8359 14069
8360 14070 Implemented minimum size checks for the fixed-length ACPI tables -
8361 14071 - the FADT and FACS, as well as consistency checks between the
8362 14072 revision number and the table size.
8363 14073
8364 14074 Fixed a reported problem in the table override support where the
8365 14075 new table pointer was incorrectly treated as a physical address
8366 14076 instead of a logical address.
8367 14077
8368 14078 Eliminated the use of the AE_AML_ERROR exception and replaced it
8369 14079 with more descriptive codes.
8370 14080
8371 14081 Fixed a problem where an exception would occur if an ASL Field was
8372 14082 defined with no named Field Units underneath it (used by some
8373 14083 index fields).
8374 14084
8375 14085 Code and Data Size: Current core subsystem library sizes are shown
8376 14086 below. These are the code and data sizes for the acpica.lib
8377 14087 produced by the Microsoft Visual C++ 6.0 compiler, and these
8378 14088 values do not include any ACPI driver or OSPM code. The debug
8379 14089 version of the code includes the debug output trace mechanism and
8380 14090 has a larger code and data size. Note that these values will vary
8381 14091 depending on the efficiency of the compiler and the compiler
8382 14092 options used during generation.
8383 14093
8384 14094 Previous Release
8385 14095 Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total
8386 14096 Debug Version: 142.9K Code, 58.4K Data, 201.3K Total
8387 14097 Current Release:
8388 14098 Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total
8389 14099 Debug Version: 143.8K Code, 58.8K Data, 202.6K Total
8390 14100
8391 14101
8392 14102
8393 14103 2) Linux
8394 14104
8395 14105 Much work done on ACPI init (MADT and PCI IRQ routing support).
8396 14106 (Paul D. and Dominik Brodowski)
8397 14107
8398 14108 Fix PCI IRQ-related panic on boot (Sam Revitch)
8399 14109
8400 14110 Set BM_ARB_DIS when entering a sleep state (Ducrot Bruno)
8401 14111
8402 14112 Fix "MHz" typo (Dominik Brodowski)
8403 14113
8404 14114 Fix RTC year 2000 issue (Dominik Brodowski)
8405 14115
8406 14116 Preclude multiple button proc entries (Eric Brunet)
8407 14117
8408 14118 Moved arch-specific code out of include/platform/aclinux.h
8409 14119
8410 14120 3) iASL Compiler Version X2044:
8411 14121
8412 14122 Implemented error checking for the string used in the EISAID macro
8413 14123 (Usually used in the definition of the _HID object.) The code now
8414 14124 strictly enforces the PnP format - exactly 7 characters, 3
8415 14125 uppercase letters and 4 hex digits.
8416 14126
8417 14127 If a raw string is used in the definition of the _HID object
8418 14128 (instead of the EISAID macro), the string must contain all
8419 14129 alphanumeric characters (e.g., "*PNP0011" is not allowed because
8420 14130 of the asterisk.)
8421 14131
8422 14132 Implemented checking for invalid use of ACPI reserved names for
8423 14133 most of the name creation operators (Name, Device, Event, Mutex,
8424 14134 OperationRegion, PowerResource, Processor, and ThermalZone.)
8425 14135 Previously, this check was only performed for control methods.
8426 14136
8427 14137 Implemented an additional check on the Name operator to emit an
8428 14138 error if a reserved name that must be implemented in ASL as a
8429 14139 control method is used. We know that a reserved name must be a
8430 14140 method if it is defined with input arguments.
8431 14141
8432 14142 The warning emitted when a namespace object reference is not found
8433 14143 during the cross reference phase has been changed into an error.
8434 14144 The "External" directive should be used for names defined in other
8435 14145 modules.
8436 14146
8437 14147
8438 14148 4) Tools and Utilities
8439 14149
8440 14150 The 16-bit tools (adump16 and aexec16) have been regenerated and
8441 14151 tested.
8442 14152
8443 14153 Fixed a problem with the output of both acpidump and adump16 where
8444 14154 the indentation of closing parentheses and brackets was not
8445 14155
8446 14156 aligned properly with the parent block.
8447 14157
8448 14158
8449 14159 ----------------------------------------
8450 14160 03 May 2002. Summary of changes for this release.
8451 14161
8452 14162
8453 14163 1) ACPI CA Core Subsystem Version 20020503:
8454 14164
8455 14165 Added support a new OSL interface that allows the host operating
8456 14166
8457 14167 system software to override the DSDT found in the firmware -
8458 14168 AcpiOsTableOverride. With this interface, the OSL can examine the
8459 14169 version of the firmware DSDT and replace it with a different one
8460 14170 if desired.
8461 14171
8462 14172 Added new external interfaces for accessing ACPI registers from
8463 14173 device drivers and other system software - AcpiGetRegister and
8464 14174 AcpiSetRegister. This was simply an externalization of the
8465 14175 existing AcpiHwBitRegister interfaces.
8466 14176
8467 14177 Fixed a regression introduced in the previous build where the
8468 14178 ASL/AML CreateField operator always returned an error,
8469 14179 "destination must be a NS Node".
8470 14180
8471 14181 Extended the maximum time (before failure) to successfully enable
8472 14182 ACPI mode to 3 seconds.
8473 14183
8474 14184 Code and Data Size: Current core subsystem library sizes are shown
8475 14185 below. These are the code and data sizes for the acpica.lib
8476 14186 produced by the Microsoft Visual C++ 6.0 compiler, and these
8477 14187 values do not include any ACPI driver or OSPM code. The debug
8478 14188 version of the code includes the debug output trace mechanism and
8479 14189 has a larger code and data size. Note that these values will vary
8480 14190 depending on the efficiency of the compiler and the compiler
8481 14191 options used during generation.
8482 14192
8483 14193 Previous Release
8484 14194 Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total
8485 14195 Debug Version: 142.4K Code, 58.3K Data, 200.7K Total
8486 14196 Current Release:
8487 14197 Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total
8488 14198 Debug Version: 142.9K Code, 58.4K Data, 201.3K Total
8489 14199
8490 14200
8491 14201 2) Linux
8492 14202
8493 14203 Enhanced ACPI init code for SMP. We are now fully MPS and $PIR-
8494 14204 free. While 3 out of 4 of our in-house systems work fine, the last
8495 14205 one still hangs when testing the LAPIC timer.
8496 14206
8497 14207 Renamed many files in 2.5 kernel release to omit "acpi_" from the
8498 14208 name.
8499 14209
8500 14210 Added warning on boot for Presario 711FR.
8501 14211
8502 14212 Sleep improvements (Pavel Machek)
8503 14213
8504 14214 ACPI can now be built without CONFIG_PCI enabled.
8505 14215
8506 14216 IA64: Fixed memory map functions (JI Lee)
8507 14217
8508 14218
8509 14219 3) iASL Compiler Version X2043:
8510 14220
8511 14221 Added support to allow the compiler to be integrated into the MS
8512 14222 VC++ development environment for one-button compilation of single
8513 14223 files or entire projects -- with error-to-source-line mapping.
8514 14224
8515 14225 Implemented support for compile-time constant folding for the
8516 14226 Type3, Type4, and Type5 opcodes first defined in the ACPI 2.0
8517 14227 specification. This allows the ASL writer to use expressions
8518 14228 instead of Integer/Buffer/String constants in terms that must
8519 14229 evaluate to constants at compile time and will also simplify the
8520 14230 emitted AML in any such sub-expressions that can be folded
8521 14231 (evaluated at compile-time.) This increases the size of the
8522 14232 compiler significantly because a portion of the ACPI CA AML
8523 14233 interpreter is included within the compiler in order to pre-
8524 14234 evaluate constant expressions.
8525 14235
8526 14236
8527 14237 Fixed a problem with the "Unicode" ASL macro that caused the
8528 14238 compiler to fault. (This macro is used in conjunction with the
8529 14239 _STR reserved name.)
8530 14240
8531 14241 Implemented an AML opcode optimization to use the Zero, One, and
8532 14242 Ones opcodes where possible to further reduce the size of integer
8533 14243 constants and thus reduce the overall size of the generated AML
8534 14244 code.
8535 14245
8536 14246 Implemented error checking for new reserved terms for ACPI version
8537 14247 2.0A.
8538 14248
8539 14249 Implemented the -qr option to display the current list of ACPI
8540 14250 reserved names known to the compiler.
8541 14251
8542 14252 Implemented the -qc option to display the current list of ASL
8543 14253 operators that are allowed within constant expressions and can
8544 14254 therefore be folded at compile time if the operands are constants.
8545 14255
8546 14256
8547 14257 4) Documentation
8548 14258
8549 14259 Updated the Programmer's Reference for new interfaces, data types,
8550 14260 and memory allocation model options.
8551 14261
8552 14262 Updated the iASL Compiler User Reference to apply new format and
8553 14263 add information about new features and options.
8554 14264
8555 14265 ----------------------------------------
8556 14266 19 April 2002. Summary of changes for this release.
8557 14267
8558 14268 1) ACPI CA Core Subsystem Version 20020419:
8559 14269
8560 14270 The source code base for the Core Subsystem has been completely
8561 14271 cleaned with PC-lint (FlexLint) for both 32-bit and 64-bit
8562 14272 versions. The Lint option files used are included in the
8563 14273 /acpi/generate/lint directory.
8564 14274
8565 14275 Implemented enhanced status/error checking across the entire
8566 14276 Hardware manager subsystem. Any hardware errors (reported from
8567 14277 the OSL) are now bubbled up and will abort a running control
8568 14278 method.
8569 14279
8570 14280
8571 14281 Fixed a problem where the per-ACPI-table integer width (32 or 64)
8572 14282 was stored only with control method nodes, causing a fault when
8573 14283 non-control method code was executed during table loading. The
8574 14284 solution implemented uses a global variable to indicate table
8575 14285 width across the entire ACPI subsystem. Therefore, ACPI CA does
8576 14286 not support mixed integer widths across different ACPI tables
8577 14287 (DSDT, SSDT).
8578 14288
8579 14289 Fixed a problem where NULL extended fields (X fields) in an ACPI
8580 14290 2.0 ACPI FADT caused the table load to fail. Although the
8581 14291 existing ACPI specification is a bit fuzzy on this topic, the new
8582 14292 behavior is to fall back on a ACPI 1.0 field if the corresponding
8583 14293 ACPI 2.0 X field is zero (even though the table revision indicates
8584 14294 a full ACPI 2.0 table.) The ACPI specification will be updated to
8585 14295 clarify this issue.
8586 14296
8587 14297 Fixed a problem with the SystemMemory operation region handler
8588 14298 where memory was always accessed byte-wise even if the AML-
8589 14299 specified access width was larger than a byte. This caused
8590 14300 problems on systems with memory-mapped I/O. Memory is now
8591 14301 accessed with the width specified. On systems that do not support
8592 14302 non-aligned transfers, a check is made to guarantee proper address
8593 14303 alignment before proceeding in order to avoid an AML-caused
8594 14304 alignment fault within the kernel.
8595 14305
8596 14306
8597 14307 Fixed a problem with the ExtendedIrq resource where only one byte
8598 14308 of the 4-byte Irq field was extracted.
8599 14309
8600 14310 Fixed the AcpiExDigitsNeeded() procedure to support _UID. This
8601 14311 function was out of date and required a rewrite.
8602 14312
8603 14313 Code and Data Size: Current core subsystem library sizes are shown
8604 14314 below. These are the code and data sizes for the acpica.lib
8605 14315 produced by the Microsoft Visual C++ 6.0 compiler, and these
8606 14316 values do not include any ACPI driver or OSPM code. The debug
8607 14317 version of the code includes the debug output trace mechanism and
8608 14318 has a larger code and data size. Note that these values will vary
8609 14319 depending on the efficiency of the compiler and the compiler
8610 14320 options used during generation.
8611 14321
8612 14322 Previous Release
8613 14323 Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total
8614 14324 Debug Version: 139.8K Code, 57.4K Data, 197.2K Total
8615 14325 Current Release:
8616 14326 Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total
8617 14327 Debug Version: 142.4K Code, 58.3K Data, 200.7K Total
8618 14328
8619 14329
8620 14330 2) Linux
8621 14331
8622 14332 PCI IRQ routing fixes (Dominik Brodowski)
8623 14333
8624 14334
8625 14335 3) iASL Compiler Version X2042:
8626 14336
8627 14337 Implemented an additional compile-time error check for a field
8628 14338 unit whose size + minimum access width would cause a run-time
8629 14339 access beyond the end-of-region. Previously, only the field size
8630 14340 itself was checked.
8631 14341
8632 14342 The Core subsystem and iASL compiler now share a common parse
8633 14343 object in preparation for compile-time evaluation of the type
8634 14344 3/4/5 ASL operators.
8635 14345
8636 14346
8637 14347 ----------------------------------------
8638 14348 Summary of changes for this release: 03_29_02
8639 14349
8640 14350 1) ACPI CA Core Subsystem Version 20020329:
8641 14351
8642 14352 Implemented support for late evaluation of TermArg operands to
8643 14353 Buffer and Package objects. This allows complex expressions to be
8644 14354 used in the declarations of these object types.
8645 14355
8646 14356 Fixed an ACPI 1.0 compatibility issue when reading Fields. In ACPI
8647 14357 1.0, if the field was larger than 32 bits, it was returned as a
8648 14358 buffer - otherwise it was returned as an integer. In ACPI 2.0,
8649 14359 the field is returned as a buffer only if the field is larger than
8650 14360 64 bits. The TableRevision is now considered when making this
8651 14361 conversion to avoid incompatibility with existing ASL code.
8652 14362
8653 14363 Implemented logical addressing for AcpiOsGetRootPointer. This
8654 14364 allows an RSDP with either a logical or physical address. With
8655 14365 this support, the host OS can now override all ACPI tables with
8656 14366 one logical RSDP. Includes implementation of "typed" pointer
8657 14367 support to allow a common data type for both physical and logical
8658 14368 pointers internally. This required a change to the
8659 14369 AcpiOsGetRootPointer interface.
8660 14370
8661 14371 Implemented the use of ACPI 2.0 Generic Address Structures for all
8662 14372 GPE, Fixed Event, and PM Timer I/O. This allows the use of memory
8663 14373 mapped I/O for these ACPI features.
8664 14374
8665 14375 Initialization now ignores not only non-required tables (All
8666 14376 tables other than the FADT, FACS, DSDT, and SSDTs), but also does
8667 14377 not validate the table headers of unrecognized tables.
8668 14378
8669 14379 Fixed a problem where a notify handler could only be
8670 14380 installed/removed on an object of type Device. All "notify"
8671 14381
8672 14382 objects are now supported -- Devices, Processor, Power, and
8673 14383 Thermal.
8674 14384
8675 14385 Removed most verbosity from the ACPI_DB_INFO debug level. Only
8676 14386 critical information is returned when this debug level is enabled.
8677 14387
8678 14388 Code and Data Size: Current core subsystem library sizes are shown
8679 14389 below. These are the code and data sizes for the acpica.lib
8680 14390 produced by the Microsoft Visual C++ 6.0 compiler, and these
8681 14391 values do not include any ACPI driver or OSPM code. The debug
8682 14392 version of the code includes the debug output trace mechanism and
8683 14393 has a larger code and data size. Note that these values will vary
8684 14394 depending on the efficiency of the compiler and the compiler
8685 14395 options used during generation.
8686 14396
8687 14397 Previous Release
8688 14398 Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total
8689 14399 Debug Version: 138.0K Code, 56.6K Data, 194.6K Total
8690 14400 Current Release:
8691 14401 Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total
8692 14402 Debug Version: 139.8K Code, 57.4K Data, 197.2K Total
8693 14403
8694 14404
8695 14405 2) Linux:
8696 14406
8697 14407 The processor driver (acpi_processor.c) now fully supports ACPI
8698 14408 2.0-based processor performance control (e.g. Intel(R)
8699 14409 SpeedStep(TM) technology) Note that older laptops that only have
8700 14410 the Intel "applet" interface are not supported through this. The
8701 14411 'limit' and 'performance' interface (/proc) are fully functional.
8702 14412 [Note that basic policy for controlling performance state
8703 14413 transitions will be included in the next version of ospmd.] The
8704 14414 idle handler was modified to more aggressively use C2, and PIIX4
8705 14415 errata handling underwent a complete overhaul (big thanks to
8706 14416 Dominik Brodowski).
8707 14417
8708 14418 Added support for ACPI-PCI device binding (acpi_pci_root.c). _ADR-
8709 14419 based devices in the ACPI namespace are now dynamically bound
8710 14420 (associated) with their PCI counterparts (e.g. PCI1->01:00.0).
8711 14421 This allows, among other things, ACPI to resolve bus numbers for
8712 14422 subordinate PCI bridges.
8713 14423
8714 14424 Enhanced PCI IRQ routing to get the proper bus number for _PRT
8715 14425 entries defined underneath PCI bridges.
8716 14426
8717 14427 Added IBM 600E to bad bios list due to invalid _ADR value for
8718 14428 PIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing.
8719 14429
8720 14430 In the process of adding full MADT support (e.g. IOAPIC) for IA32
8721 14431 (acpi.c, mpparse.c) -- stay tuned.
8722 14432
8723 14433 Added back visual differentiation between fixed-feature and
8724 14434 control-method buttons in dmesg. Buttons are also subtyped (e.g.
8725 14435 button/power/PWRF) to simplify button identification.
8726 14436
8727 14437 We no longer use -Wno-unused when compiling debug. Please ignore
8728 14438 any "_THIS_MODULE defined but not used" messages.
8729 14439
8730 14440 Can now shut down the system using "magic sysrq" key.
8731 14441
8732 14442
8733 14443 3) iASL Compiler version 2041:
8734 14444
8735 14445 Fixed a problem where conversion errors for hex/octal/decimal
8736 14446 constants were not reported.
8737 14447
8738 14448 Implemented a fix for the General Register template Address field.
8739 14449 This field was 8 bits when it should be 64.
8740 14450
8741 14451 Fixed a problem where errors/warnings were no longer being emitted
8742 14452 within the listing output file.
8743 14453
8744 14454 Implemented the ACPI 2.0A restriction on ACPI Table Signatures to
8745 14455 exactly 4 characters, alphanumeric only.
8746 14456
8747 14457
8748 14458
8749 14459
8750 14460 ----------------------------------------
8751 14461 Summary of changes for this release: 03_08_02
8752 14462
8753 14463
8754 14464 1) ACPI CA Core Subsystem Version 20020308:
8755 14465
8756 14466 Fixed a problem with AML Fields where the use of the "AccessAny"
8757 14467 keyword could cause an interpreter error due to attempting to read
8758 14468 or write beyond the end of the parent Operation Region.
8759 14469
8760 14470 Fixed a problem in the SystemMemory Operation Region handler where
8761 14471 an attempt was made to map memory beyond the end of the region.
8762 14472 This was the root cause of the "AE_ERROR" and "AE_NO_MEMORY"
8763 14473 errors on some Linux systems.
8764 14474
8765 14475 Fixed a problem where the interpreter/namespace "search to root"
8766 14476 algorithm was not functioning for some object types. Relaxed the
8767 14477 internal restriction on the search to allow upsearches for all
8768 14478 external object types as well as most internal types.
8769 14479
8770 14480
8771 14481 2) Linux:
8772 14482
8773 14483 We now use safe_halt() macro versus individual calls to sti | hlt.
8774 14484
8775 14485 Writing to the processor limit interface should now work. "echo 1"
8776 14486 will increase the limit, 2 will decrease, and 0 will reset to the
8777 14487
8778 14488 default.
8779 14489
8780 14490
8781 14491 3) ASL compiler:
8782 14492
8783 14493 Fixed segfault on Linux version.
8784 14494
8785 14495
8786 14496 ----------------------------------------
8787 14497 Summary of changes for this release: 02_25_02
8788 14498
8789 14499 1) ACPI CA Core Subsystem:
8790 14500
8791 14501
8792 14502 Fixed a problem where the GPE bit masks were not initialized
8793 14503 properly, causing erratic GPE behavior.
8794 14504
8795 14505 Implemented limited support for multiple calling conventions. The
8796 14506 code can be generated with either the VPL (variable parameter
8797 14507 list, or "C") convention, or the FPL (fixed parameter list, or
8798 14508 "Pascal") convention. The core subsystem is about 3.4% smaller
8799 14509 when generated with FPL.
8800 14510
8801 14511
8802 14512 2) Linux
8803 14513
8804 14514 Re-add some /proc/acpi/event functionality that was lost during
8805 14515 the rewrite
8806 14516
8807 14517 Resolved issue with /proc events for fixed-feature buttons showing
8808 14518 up as the system device.
8809 14519
8810 14520 Fixed checks on C2/C3 latencies to be inclusive of maximum values.
8811 14521
8812 14522 Replaced AE_ERRORs in acpi_osl.c with more specific error codes.
8813 14523
8814 14524 Changed ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi"
8815 14525
8816 14526 Fixed limit interface & usage to fix bugs with passive cooling
8817 14527 hysterisis.
8818 14528
8819 14529 Restructured PRT support.
8820 14530
8821 14531
8822 14532 ----------------------------------------
8823 14533 Summary of changes for this label: 02_14_02
8824 14534
8825 14535
8826 14536 1) ACPI CA Core Subsystem:
8827 14537
8828 14538 Implemented support in AcpiLoadTable to allow loading of FACS and
8829 14539 FADT tables.
8830 14540
8831 14541 Suport for the now-obsolete interim 0.71 64-bit ACPI tables has
8832 14542 been removed. All 64-bit platforms should be migrated to the ACPI
8833 14543 2.0 tables. The actbl71.h header has been removed from the source
8834 14544 tree.
8835 14545
8836 14546 All C macros defined within the subsystem have been prefixed with
8837 14547 "ACPI_" to avoid collision with other system include files.
8838 14548
8839 14549 Removed the return value for the two AcpiOsPrint interfaces, since
8840 14550 it is never used and causes lint warnings for ignoring the return
8841 14551 value.
8842 14552
8843 14553 Added error checking to all internal mutex acquire and release
8844 14554 calls. Although a failure from one of these interfaces is
8845 14555 probably a fatal system error, these checks will cause the
8846 14556 immediate abort of the currently executing method or interface.
8847 14557
8848 14558 Fixed a problem where the AcpiSetCurrentResources interface could
8849 14559 fault. This was a side effect of the deployment of the new memory
8850 14560 allocation model.
8851 14561
8852 14562 Fixed a couple of problems with the Global Lock support introduced
8853 14563 in the last major build. The "common" (1.0/2.0) internal FACS was
8854 14564 being overwritten with the FACS signature and clobbering the
8855 14565 Global Lock pointer. Also, the actual firmware FACS was being
8856 14566 unmapped after construction of the "common" FACS, preventing
8857 14567 access to the actual Global Lock field within it. The "common"
8858 14568 internal FACS is no longer installed as an actual ACPI table; it
8859 14569 is used simply as a global.
8860 14570
8861 14571 Code and Data Size: Current core subsystem library sizes are shown
8862 14572 below. These are the code and data sizes for the acpica.lib
8863 14573 produced by the Microsoft Visual C++ 6.0 compiler, and these
8864 14574 values do not include any ACPI driver or OSPM code. The debug
8865 14575 version of the code includes the debug output trace mechanism and
8866 14576 has a larger code and data size. Note that these values will vary
8867 14577 depending on the efficiency of the compiler and the compiler
8868 14578 options used during generation.
8869 14579
8870 14580 Previous Release (02_07_01)
8871 14581 Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total
8872 14582 Debug Version: 136.9K Code, 56.4K Data, 193.3K Total
8873 14583 Current Release:
8874 14584 Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total
8875 14585 Debug Version: 138.0K Code, 56.6K Data, 194.6K Total
8876 14586
8877 14587
8878 14588 2) Linux
8879 14589
8880 14590 Updated Linux-specific code for core macro and OSL interface
8881 14591 changes described above.
8882 14592
8883 14593 Improved /proc/acpi/event. It now can be opened only once and has
8884 14594 proper poll functionality.
8885 14595
8886 14596 Fixed and restructured power management (acpi_bus).
8887 14597
8888 14598 Only create /proc "view by type" when devices of that class exist.
8889 14599
8890 14600 Fixed "charging/discharging" bug (and others) in acpi_battery.
8891 14601
8892 14602 Improved thermal zone code.
8893 14603
8894 14604
8895 14605 3) ASL Compiler, version X2039:
8896 14606
8897 14607
8898 14608 Implemented the new compiler restriction on ASL String hex/octal
8899 14609 escapes to non-null, ASCII values. An error results if an invalid
8900 14610 value is used. (This will require an ACPI 2.0 specification
8901 14611 change.)
8902 14612
8903 14613 AML object labels that are output to the optional C and ASM source
8904 14614 are now prefixed with both the ACPI table signature and table ID
8905 14615 to help guarantee uniqueness within a large BIOS project.
8906 14616
8907 14617
8908 14618 ----------------------------------------
8909 14619 Summary of changes for this label: 02_01_02
8910 14620
8911 14621 1) ACPI CA Core Subsystem:
8912 14622
8913 14623 ACPI 2.0 support is complete in the entire Core Subsystem and the
8914 14624 ASL compiler. All new ACPI 2.0 operators are implemented and all
8915 14625 other changes for ACPI 2.0 support are complete. With
8916 14626 simultaneous code and data optimizations throughout the subsystem,
8917 14627 ACPI 2.0 support has been implemented with almost no additional
8918 14628 cost in terms of code and data size.
8919 14629
8920 14630 Implemented a new mechanism for allocation of return buffers. If
8921 14631 the buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will
8922 14632 be allocated on behalf of the caller. Consolidated all return
8923 14633 buffer validation and allocation to a common procedure. Return
8924 14634 buffers will be allocated via the primary OSL allocation interface
8925 14635 since it appears that a separate pool is not needed by most users.
8926 14636 If a separate pool is required for these buffers, the caller can
8927 14637 still use the original mechanism and pre-allocate the buffer(s).
8928 14638
8929 14639 Implemented support for string operands within the DerefOf
8930 14640 operator.
8931 14641
8932 14642 Restructured the Hardware and Event managers to be table driven,
8933 14643 simplifying the source code and reducing the amount of generated
8934 14644 code.
8935 14645
8936 14646 Split the common read/write low-level ACPI register bitfield
8937 14647 procedure into a separate read and write, simplifying the code
8938 14648 considerably.
8939 14649
8940 14650 Obsoleted the AcpiOsCallocate OSL interface. This interface was
8941 14651 used only a handful of times and didn't have enough critical mass
8942 14652 for a separate interface. Replaced with a common calloc procedure
8943 14653 in the core.
8944 14654
8945 14655 Fixed a reported problem with the GPE number mapping mechanism
8946 14656 that allows GPE1 numbers to be non-contiguous with GPE0.
8947 14657 Reorganized the GPE information and shrunk a large array that was
8948 14658 originally large enough to hold info for all possible GPEs (256)
8949 14659 to simply large enough to hold all GPEs up to the largest GPE
8950 14660 number on the machine.
8951 14661
8952 14662 Fixed a reported problem with resource structure alignment on 64-
8953 14663 bit platforms.
8954 14664
8955 14665 Changed the AcpiEnableEvent and AcpiDisableEvent external
8956 14666 interfaces to not require any flags for the common case of
8957 14667 enabling/disabling a GPE.
8958 14668
8959 14669 Implemented support to allow a "Notify" on a Processor object.
8960 14670
8961 14671 Most TBDs in comments within the source code have been resolved
8962 14672 and eliminated.
8963 14673
8964 14674
8965 14675 Fixed a problem in the interpreter where a standalone parent
8966 14676 prefix (^) was not handled correctly in the interpreter and
8967 14677 debugger.
8968 14678
8969 14679 Removed obsolete and unnecessary GPE save/restore code.
8970 14680
8971 14681 Implemented Field support in the ASL Load operator. This allows a
8972 14682 table to be loaded from a named field, in addition to loading a
8973 14683 table directly from an Operation Region.
8974 14684
8975 14685 Implemented timeout and handle support in the external Global Lock
8976 14686 interfaces.
8977 14687
8978 14688 Fixed a problem in the AcpiDump utility where pathnames were no
8979 14689 longer being generated correctly during the dump of named objects.
8980 14690
8981 14691 Modified the AML debugger to give a full display of if/while
8982 14692 predicates instead of just one AML opcode at a time. (The
8983 14693 predicate can have several nested ASL statements.) The old method
8984 14694 was confusing during single stepping.
8985 14695
8986 14696 Code and Data Size: Current core subsystem library sizes are shown
8987 14697 below. These are the code and data sizes for the acpica.lib
8988 14698 produced by the Microsoft Visual C++ 6.0 compiler, and these
8989 14699 values do not include any ACPI driver or OSPM code. The debug
8990 14700 version of the code includes the debug output trace mechanism and
8991 14701 has a larger code and data size. Note that these values will vary
8992 14702 depending on the efficiency of the compiler and the compiler
8993 14703 options used during generation.
8994 14704
8995 14705 Previous Release (12_18_01)
8996 14706 Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total
8997 14707 Debug Version: 138.3K Code, 55.9K Data, 194.2K Total
8998 14708 Current Release:
8999 14709 Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total
9000 14710 Debug Version: 136.9K Code, 56.4K Data, 193.3K Total
9001 14711
9002 14712 2) Linux
9003 14713
9004 14714 Implemented fix for PIIX reverse throttling errata (Processor
9005 14715 driver)
9006 14716
9007 14717 Added new Limit interface (Processor and Thermal drivers)
9008 14718
9009 14719 New thermal policy (Thermal driver)
9010 14720
9011 14721 Many updates to /proc
9012 14722
9013 14723 Battery "low" event support (Battery driver)
9014 14724
9015 14725 Supports ACPI PCI IRQ routing (PCI Link and PCI root drivers)
9016 14726
9017 14727 IA32 - IA64 initialization unification, no longer experimental
9018 14728
9019 14729 Menuconfig options redesigned
9020 14730
9021 14731 3) ASL Compiler, version X2037:
9022 14732
9023 14733 Implemented several new output features to simplify integration of
9024 14734 AML code into firmware: 1) Output the AML in C source code with
9025 14735 labels for each named ASL object. The original ASL source code
9026 14736 is interleaved as C comments. 2) Output the AML in ASM source code
9027 14737 with labels and interleaved ASL source. 3) Output the AML in
9028 14738 raw hex table form, in either C or ASM.
9029 14739
9030 14740 Implemented support for optional string parameters to the
9031 14741 LoadTable operator.
9032 14742
9033 14743 Completed support for embedded escape sequences within string
9034 14744 literals. The compiler now supports all single character escapes
9035 14745 as well as the Octal and Hex escapes. Note: the insertion of a
9036 14746 null byte into a string literal (via the hex/octal escape) causes
9037 14747 the string to be immediately terminated. A warning is issued.
9038 14748
9039 14749 Fixed a problem where incorrect AML was generated for the case
9040 14750 where an ASL namepath consists of a single parent prefix (
9041 14751
9042 14752 ) with no trailing name segments.
9043 14753
9044 14754 The compiler has been successfully generated with a 64-bit C
9045 14755 compiler.
9046 14756
9047 14757
9048 14758
9049 14759
9050 14760 ----------------------------------------
9051 14761 Summary of changes for this label: 12_18_01
9052 14762
9053 14763 1) Linux
9054 14764
9055 14765 Enhanced blacklist with reason and severity fields. Any table's
9056 14766 signature may now be used to identify a blacklisted system.
9057 14767
9058 14768 Call _PIC control method to inform the firmware which interrupt
9059 14769 model the OS is using. Turn on any disabled link devices.
9060 14770
9061 14771 Cleaned up busmgr /proc error handling (Andreas Dilger)
9062 14772
9063 14773 2) ACPI CA Core Subsystem:
9064 14774
9065 14775 Implemented ACPI 2.0 semantics for the "Break" operator (Exit from
9066 14776 while loop)
9067 14777
9068 14778 Completed implementation of the ACPI 2.0 "Continue",
9069 14779 "ConcatenateResTemplate", "DataTableRegion", and "LoadTable"
9070 14780 operators. All new ACPI 2.0 operators are now implemented in both
9071 14781 the ASL compiler and the AML interpreter. The only remaining ACPI
9072 14782 2.0 task is support for the String data type in the DerefOf
9073 14783 operator. Fixed a problem with AcquireMutex where the status code
9074 14784 was lost if the caller had to actually wait for the mutex.
9075 14785
9076 14786 Increased the maximum ASL Field size from 64K bits to 4G bits.
9077 14787
9078 14788 Completed implementation of the external Global Lock interfaces --
9079 14789 AcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and
9080 14790 Handler parameters were added.
9081 14791
9082 14792 Completed another pass at removing warnings and issues when
9083 14793 compiling with 64-bit compilers. The code now compiles cleanly
9084 14794 with the Intel 64-bit C/C++ compiler. Most notably, the pointer
9085 14795 add and subtract (diff) macros have changed considerably.
9086 14796
9087 14797
9088 14798 Created and deployed a new ACPI_SIZE type that is 64-bits wide on
9089 14799 64-bit platforms, 32-bits on all others. This type is used
9090 14800 wherever memory allocation and/or the C sizeof() operator is used,
9091 14801 and affects the OSL memory allocation interfaces AcpiOsAllocate
9092 14802 and AcpiOsCallocate.
9093 14803
9094 14804 Implemented sticky user breakpoints in the AML debugger.
9095 14805
9096 14806 Code and Data Size: Current core subsystem library sizes are shown
9097 14807 below. These are the code and data sizes for the acpica.lib
9098 14808 produced by the Microsoft Visual C++ 6.0 compiler, and these
9099 14809 values do not include any ACPI driver or OSPM code. The debug
9100 14810 version of the code includes the debug output trace mechanism and
9101 14811 has a larger code and data size. Note that these values will vary
9102 14812 depending on the efficiency of the compiler and the compiler
9103 14813 options used during generation.
9104 14814
9105 14815 Previous Release (12_05_01)
9106 14816 Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total
9107 14817 Debug Version: 136.2K Code, 55.6K Data, 191.8K Total
9108 14818 Current Release:
9109 14819 Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total
9110 14820 Debug Version: 138.3K Code, 55.9K Data, 194.2K Total
9111 14821
9112 14822 3) ASL Compiler, version X2034:
9113 14823
9114 14824 Now checks for (and generates an error if detected) the use of a
9115 14825 Break or Continue statement without an enclosing While statement.
9116 14826
9117 14827
9118 14828 Successfully generated the compiler with the Intel 64-bit C
9119 14829 compiler.
9120 14830
9121 14831 ----------------------------------------
9122 14832 Summary of changes for this label: 12_05_01
9123 14833
9124 14834 1) ACPI CA Core Subsystem:
9125 14835
9126 14836 The ACPI 2.0 CopyObject operator is fully implemented. This
9127 14837 operator creates a new copy of an object (and is also used to
9128 14838 bypass the "implicit conversion" mechanism of the Store operator.)
9129 14839
9130 14840 The ACPI 2.0 semantics for the SizeOf operator are fully
9131 14841 implemented. The change is that performing a SizeOf on a
9132 14842 reference object causes an automatic dereference of the object to
9133 14843 tha actual value before the size is evaluated. This behavior was
9134 14844 undefined in ACPI 1.0.
9135 14845
9136 14846 The ACPI 2.0 semantics for the Extended IRQ resource descriptor
9137 14847 have been implemented. The interrupt polarity and mode are now
9138 14848 independently set.
9139 14849
9140 14850 Fixed a problem where ASL Constants (Zero, One, Ones, Revision)
9141 14851 appearing in Package objects were not properly converted to
9142 14852 integers when the internal Package was converted to an external
9143 14853 object (via the AcpiEvaluateObject interface.)
9144 14854
9145 14855 Fixed a problem with the namespace object deletion mechanism for
9146 14856 objects created by control methods. There were two parts to this
9147 14857 problem: 1) Objects created during the initialization phase method
9148 14858 parse were not being deleted, and 2) The object owner ID mechanism
9149 14859 to track objects was broken.
9150 14860
9151 14861 Fixed a problem where the use of the ASL Scope operator within a
9152 14862 control method would result in an invalid opcode exception.
9153 14863
9154 14864 Fixed a problem introduced in the previous label where the buffer
9155 14865 length required for the _PRT structure was not being returned
9156 14866 correctly.
9157 14867
9158 14868 Code and Data Size: Current core subsystem library sizes are shown
9159 14869 below. These are the code and data sizes for the acpica.lib
9160 14870 produced by the Microsoft Visual C++ 6.0 compiler, and these
9161 14871 values do not include any ACPI driver or OSPM code. The debug
9162 14872 version of the code includes the debug output trace mechanism and
9163 14873 has a larger code and data size. Note that these values will vary
9164 14874 depending on the efficiency of the compiler and the compiler
9165 14875 options used during generation.
9166 14876
9167 14877 Previous Release (11_20_01)
9168 14878 Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total
9169 14879 Debug Version: 135.1K Code, 55.4K Data, 190.5K Total
9170 14880
9171 14881 Current Release:
9172 14882 Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total
9173 14883 Debug Version: 136.2K Code, 55.6K Data, 191.8K Total
9174 14884
9175 14885 2) Linux:
9176 14886
9177 14887 Updated all files to apply cleanly against 2.4.16.
9178 14888
9179 14889 Added basic PCI Interrupt Routing Table (PRT) support for IA32
9180 14890 (acpi_pci.c), and unified the PRT code for IA32 and IA64. This
9181 14891 version supports both static and dyanmic PRT entries, but dynamic
9182 14892 entries are treated as if they were static (not yet
9183 14893 reconfigurable). Architecture- specific code to use this data is
9184 14894 absent on IA32 but should be available shortly.
9185 14895
9186 14896 Changed the initialization sequence to start the ACPI interpreter
9187 14897 (acpi_init) prior to initialization of the PCI driver (pci_init)
9188 14898 in init/main.c. This ordering is required to support PRT and
9189 14899 facilitate other (future) enhancement. A side effect is that the
9190 14900 ACPI bus driver and certain device drivers can no longer be loaded
9191 14901 as modules.
9192 14902
9193 14903 Modified the 'make menuconfig' options to allow PCI Interrupt
9194 14904 Routing support to be included without the ACPI Bus and other
9195 14905 device drivers.
9196 14906
9197 14907 3) ASL Compiler, version X2033:
9198 14908
9199 14909 Fixed some issues with the use of the new CopyObject and
9200 14910 DataTableRegion operators. Both are fully functional.
9201 14911
9202 14912 ----------------------------------------
9203 14913 Summary of changes for this label: 11_20_01
9204 14914
9205 14915 20 November 2001. Summary of changes for this release.
9206 14916
9207 14917 1) ACPI CA Core Subsystem:
9208 14918
9209 14919 Updated Index support to match ACPI 2.0 semantics. Storing a
9210 14920 Integer, String, or Buffer to an Index of a Buffer will store only
9211 14921 the least-significant byte of the source to the Indexed buffer
9212 14922 byte. Multiple writes are not performed.
9213 14923
9214 14924 Fixed a problem where the access type used in an AccessAs ASL
9215 14925 operator was not recorded correctly into the field object.
9216 14926
9217 14927 Fixed a problem where ASL Event objects were created in a
9218 14928 signalled state. Events are now created in an unsignalled state.
9219 14929
9220 14930 The internal object cache is now purged after table loading and
9221 14931 initialization to reduce the use of dynamic kernel memory -- on
9222 14932 the assumption that object use is greatest during the parse phase
9223 14933 of the entire table (versus the run-time use of individual control
9224 14934 methods.)
9225 14935
9226 14936 ACPI 2.0 variable-length packages are now fully operational.
9227 14937
9228 14938 Code and Data Size: Code and Data optimizations have permitted new
9229 14939 feature development with an actual reduction in the library size.
9230 14940 Current core subsystem library sizes are shown below. These are
9231 14941 the code and data sizes for the acpica.lib produced by the
9232 14942 Microsoft Visual C++ 6.0 compiler, and these values do not include
9233 14943 any ACPI driver or OSPM code. The debug version of the code
9234 14944 includes the debug output trace mechanism and has a larger code
9235 14945 and data size. Note that these values will vary depending on the
9236 14946 efficiency of the compiler and the compiler options used during
9237 14947 generation.
9238 14948
9239 14949 Previous Release (11_09_01):
9240 14950 Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total
9241 14951 Debug Version: 134.5K Code, 55.4K Data, 189.9K Total
9242 14952
9243 14953 Current Release:
9244 14954 Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total
9245 14955 Debug Version: 135.1K Code, 55.4K Data, 190.5K Total
9246 14956
9247 14957 2) Linux:
9248 14958
9249 14959 Enhanced the ACPI boot-time initialization code to allow the use
9250 14960 of Local APIC tables for processor enumeration on IA-32, and to
9251 14961 pave the way for a fully MPS-free boot (on SMP systems) in the
9252 14962 near future. This functionality replaces
9253 14963 arch/i386/kernel/acpitables.c, which was introduced in an earlier
9254 14964 2.4.15-preX release. To enable this feature you must add
9255 14965 "acpi_boot=on" to the kernel command line -- see the help entry
9256 14966 for CONFIG_ACPI_BOOT for more information. An IA-64 release is in
9257 14967 the works...
9258 14968
9259 14969 Restructured the configuration options to allow boot-time table
9260 14970 parsing support without inclusion of the ACPI Interpreter (and
9261 14971 other) code.
9262 14972
9263 14973 NOTE: This release does not include fixes for the reported events,
9264 14974 power-down, and thermal passive cooling issues (coming soon).
9265 14975
9266 14976 3) ASL Compiler:
9267 14977
9268 14978 Added additional typechecking for Fields within restricted access
9269 14979 Operation Regions. All fields within EC and CMOS regions must be
9270 14980 declared with ByteAcc. All fields withing SMBus regions must be
9271 14981 declared with the BufferAcc access type.
9272 14982
9273 14983 Fixed a problem where the listing file output of control methods
9274 14984 no longer interleaved the actual AML code with the ASL source
9275 14985 code.
9276 14986
9277 14987
9278 14988
9279 14989
9280 14990 ----------------------------------------
9281 14991 Summary of changes for this label: 11_09_01
9282 14992
9283 14993 1) ACPI CA Core Subsystem:
9284 14994
9285 14995 Implemented ACPI 2.0-defined support for writes to fields with a
9286 14996 Buffer, String, or Integer source operand that is smaller than the
9287 14997 target field. In these cases, the source operand is zero-extended
9288 14998 to fill the target field.
9289 14999
9290 15000 Fixed a problem where a Field starting bit offset (within the
9291 15001 parent operation region) was calculated incorrectly if the
9292 15002
9293 15003 alignment of the field differed from the access width. This
9294 15004 affected CreateWordField, CreateDwordField, CreateQwordField, and
9295 15005 possibly other fields that use the "AccessAny" keyword.
9296 15006
9297 15007 Fixed a problem introduced in the 11_02_01 release where indirect
9298 15008 stores through method arguments did not operate correctly.
9299 15009
9300 15010 2) Linux:
9301 15011
9302 15012 Implemented boot-time ACPI table parsing support
9303 15013 (CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code
9304 15014 facilitates the use of ACPI tables (e.g. MADT, SRAT) rather than
9305 15015 legacy BIOS interfaces (e.g. MPS) for the configuration of system
9306 15016 processors, memory, and interrupts during setup_arch(). Note that
9307 15017 this patch does not include the required architecture-specific
9308 15018 changes required to apply this information -- subsequent patches
9309 15019 will be posted for both IA32 and IA64 to achieve this.
9310 15020
9311 15021 Added low-level sleep support for IA32 platforms, courtesy of Pat
9312 15022 Mochel. This allows IA32 systems to transition to/from various
9313 15023 sleeping states (e.g. S1, S3), although the lack of a centralized
9314 15024 driver model and power-manageable drivers will prevent its
9315 15025 (successful) use on most systems.
9316 15026
9317 15027 Revamped the ACPI 'menuconfig' layout: created new "ACPI Support"
9318 15028 submenu, unified IA32 and IA64 options, added new "Boot using ACPI
9319 15029 tables" option, etc.
9320 15030
9321 15031 Increased the default timeout for the EC driver from 1ms to 10ms
9322 15032 (1000 cycles of 10us) to try to address AE_TIME errors during EC
9323 15033 transactions.
9324 15034
9325 15035 ----------------------------------------
9326 15036 Summary of changes for this label: 11_02_01
9327 15037
9328 15038 1) ACPI CA Core Subsystem:
9329 15039
9330 15040 ACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access
9331 15041 (QWordAcc keyword). All ACPI 2.0 64-bit support is now
9332 15042 implemented.
9333 15043
9334 15044 OSL Interfaces: Several of the OSL (AcpiOs*) interfaces required
9335 15045 changes to support ACPI 2.0 Qword field access. Read/Write
9336 15046 PciConfiguration(), Read/Write Memory(), and Read/Write Port() now
9337 15047 accept an ACPI_INTEGER (64 bits) as the value parameter. Also,
9338 15048 the value parameter for the address space handler interface is now
9339 15049 an ACPI_INTEGER. OSL implementations of these interfaces must now
9340 15050 handle the case where the Width parameter is 64.
9341 15051
9342 15052 Index Fields: Fixed a problem where unaligned bit assembly and
9343 15053 disassembly for IndexFields was not supported correctly.
9344 15054
9345 15055 Index and Bank Fields: Nested Index and Bank Fields are now
9346 15056 supported. During field access, a check is performed to ensure
9347 15057 that the value written to an Index or Bank register is not out of
9348 15058 the range of the register. The Index (or Bank) register is
9349 15059 written before each access to the field data. Future support will
9350 15060 include allowing individual IndexFields to be wider than the
9351 15061 DataRegister width.
9352 15062
9353 15063 Fields: Fixed a problem where the AML interpreter was incorrectly
9354 15064 attempting to write beyond the end of a Field/OpRegion. This was
9355 15065 a boundary case that occurred when a DWORD field was written to a
9356 15066 BYTE access OpRegion, forcing multiple writes and causing the
9357 15067 interpreter to write one datum too many.
9358 15068
9359 15069 Fields: Fixed a problem with Field/OpRegion access where the
9360 15070 starting bit address of a field was incorrectly calculated if the
9361 15071 current access type was wider than a byte (WordAcc, DwordAcc, or
9362 15072 QwordAcc).
9363 15073
9364 15074 Fields: Fixed a problem where forward references to individual
9365 15075 FieldUnits (individual Field names within a Field definition) were
9366 15076 not resolved during the AML table load.
9367 15077
9368 15078 Fields: Fixed a problem where forward references from a Field
9369 15079 definition to the parent Operation Region definition were not
9370 15080 resolved during the AML table load.
9371 15081
9372 15082 Fields: Duplicate FieldUnit names within a scope are now detected
9373 15083 during AML table load.
9374 15084
9375 15085 Acpi Interfaces: Fixed a problem where the AcpiGetName() interface
9376 15086 returned an incorrect name for the root node.
9377 15087
9378 15088 Code and Data Size: Code and Data optimizations have permitted new
9379 15089 feature development with an actual reduction in the library size.
9380 15090 Current core subsystem library sizes are shown below. These are
9381 15091 the code and data sizes for the acpica.lib produced by the
9382 15092 Microsoft Visual C++ 6.0 compiler, and these values do not include
9383 15093 any ACPI driver or OSPM code. The debug version of the code
9384 15094 includes the debug output trace mechanism and has a larger code
9385 15095 and data size. Note that these values will vary depending on the
9386 15096 efficiency of the compiler and the compiler options used during
9387 15097 generation.
9388 15098
9389 15099 Previous Release (10_18_01):
9390 15100 Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total
9391 15101 Debug Version: 136.7K Code, 57.4K Data, 194.2K Total
9392 15102
9393 15103 Current Release:
9394 15104 Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total
9395 15105 Debug Version: 134.5K Code, 55.4K Data, 189.9K Total
9396 15106
9397 15107 2) Linux:
9398 15108
9399 15109 Improved /proc processor output (Pavel Machek) Re-added
9400 15110 MODULE_LICENSE("GPL") to all modules.
9401 15111
9402 15112 3) ASL Compiler version X2030:
9403 15113
9404 15114 Duplicate FieldUnit names within a scope are now detected and
9405 15115 flagged as errors.
9406 15116
9407 15117 4) Documentation:
9408 15118
9409 15119 Programmer Reference updated to reflect OSL and address space
9410 15120 handler interface changes described above.
9411 15121
9412 15122 ----------------------------------------
9413 15123 Summary of changes for this label: 10_18_01
9414 15124
9415 15125 ACPI CA Core Subsystem:
9416 15126
9417 15127 Fixed a problem with the internal object reference count mechanism
9418 15128 that occasionally caused premature object deletion. This resolves
9419 15129 all of the outstanding problem reports where an object is deleted
9420 15130 in the middle of an interpreter evaluation. Although this problem
9421 15131 only showed up in rather obscure cases, the solution to the
9422 15132 problem involved an adjustment of all reference counts involving
9423 15133 objects attached to namespace nodes.
9424 15134
9425 15135 Fixed a problem with Field support in the interpreter where
9426 15136 writing to an aligned field whose length is an exact multiple (2
9427 15137 or greater) of the field access granularity would cause an attempt
9428 15138 to write beyond the end of the field.
9429 15139
9430 15140 The top level AML opcode execution functions within the
9431 15141 interpreter have been renamed with a more meaningful and
9432 15142 consistent naming convention. The modules exmonad.c and
9433 15143 exdyadic.c were eliminated. New modules are exoparg1.c,
9434 15144 exoparg2.c, exoparg3.c, and exoparg6.c.
9435 15145
9436 15146 Support for the ACPI 2.0 "Mid" ASL operator has been implemented.
9437 15147
9438 15148 Fixed a problem where the AML debugger was causing some internal
9439 15149 objects to not be deleted during subsystem termination.
9440 15150
9441 15151 Fixed a problem with the external AcpiEvaluateObject interface
9442 15152 where the subsystem would fault if the named object to be
9443 15153 evaluated refered to a constant such as Zero, Ones, etc.
9444 15154
9445 15155 Fixed a problem with IndexFields and BankFields where the
9446 15156 subsystem would fault if the index, data, or bank registers were
9447 15157 not defined in the same scope as the field itself.
9448 15158
9449 15159 Added printf format string checking for compilers that support
9450 15160 this feature. Corrected more than 50 instances of issues with
9451 15161 format specifiers within invocations of ACPI_DEBUG_PRINT
9452 15162 throughout the core subsystem code.
9453 15163
9454 15164 The ASL "Revision" operator now returns the ACPI support level
9455 15165 implemented in the core - the value "2" since the ACPI 2.0 support
9456 15166 is more than 50% implemented.
9457 15167
9458 15168 Enhanced the output of the AML debugger "dump namespace" command
9459 15169 to output in a more human-readable form.
9460 15170
9461 15171 Current core subsystem library code sizes are shown below. These
9462 15172
9463 15173 are the code and data sizes for the acpica.lib produced by the
9464 15174 Microsoft Visual C++ 6.0 compiler, and these values do not include
9465 15175 any ACPI driver or OSPM code. The debug version of the code
9466 15176 includes the full debug trace mechanism -- leading to a much
9467 15177
9468 15178 larger code and data size. Note that these values will vary
9469 15179 depending on the efficiency of the compiler and the compiler
9470 15180 options used during generation.
9471 15181
9472 15182 Previous Label (09_20_01):
9473 15183 Non-Debug Version: 65K Code, 5K Data, 70K Total
9474 15184 Debug Version: 138K Code, 58K Data, 196K Total
9475 15185
9476 15186 This Label:
9477 15187
9478 15188 Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total
9479 15189 Debug Version: 136.7K Code, 57.4K Data, 194.2K Total
9480 15190
9481 15191 Linux:
9482 15192
9483 15193 Implemented a "Bad BIOS Blacklist" to track machines that have
9484 15194 known ASL/AML problems.
9485 15195
9486 15196 Enhanced the /proc interface for the thermal zone driver and added
9487 15197 support for _HOT (the critical suspend trip point). The 'info'
9488 15198 file now includes threshold/policy information, and allows setting
9489 15199 of _SCP (cooling preference) and _TZP (polling frequency) values
9490 15200 to the 'info' file. Examples: "echo tzp=5 > info" sets the polling
9491 15201 frequency to 5 seconds, and "echo scp=1 > info" sets the cooling
9492 15202 preference to the passive/quiet mode (if supported by the ASL).
9493 15203
9494 15204 Implemented a workaround for a gcc bug that resuted in an OOPs
9495 15205 when loading the control method battery driver.
9496 15206
9497 15207 ----------------------------------------
9498 15208 Summary of changes for this label: 09_20_01
9499 15209
9500 15210 ACPI CA Core Subsystem:
9501 15211
9502 15212 The AcpiEnableEvent and AcpiDisableEvent interfaces have been
9503 15213 modified to allow individual GPE levels to be flagged as wake-
9504 15214 enabled (i.e., these GPEs are to remain enabled when the platform
9505 15215 sleeps.)
9506 15216
9507 15217 The AcpiEnterSleepState and AcpiLeaveSleepState interfaces now
9508 15218 support wake-enabled GPEs. This means that upon entering the
9509 15219 sleep state, all GPEs that are not wake-enabled are disabled.
9510 15220 When leaving the sleep state, these GPEs are reenabled.
9511 15221
9512 15222 A local double-precision divide/modulo module has been added to
9513 15223 enhance portability to OS kernels where a 64-bit math library is
9514 15224 not available. The new module is "utmath.c".
9515 15225
9516 15226 Several optimizations have been made to reduce the use of CPU
9517 15227 stack. Originally over 2K, the maximum stack usage is now below
9518 15228 2K at 1860 bytes (1.82k)
9519 15229
9520 15230 Fixed a problem with the AcpiGetFirmwareTable interface where the
9521 15231 root table pointer was not mapped into a logical address properly.
9522 15232
9523 15233 Fixed a problem where a NULL pointer was being dereferenced in the
9524 15234 interpreter code for the ASL Notify operator.
9525 15235
9526 15236 Fixed a problem where the use of the ASL Revision operator
9527 15237 returned an error. This operator now returns the current version
9528 15238 of the ACPI CA core subsystem.
9529 15239
9530 15240 Fixed a problem where objects passed as control method parameters
9531 15241 to AcpiEvaluateObject were always deleted at method termination.
9532 15242 However, these objects may end up being stored into the namespace
9533 15243 by the called method. The object reference count mechanism was
9534 15244 applied to these objects instead of a force delete.
9535 15245
9536 15246 Fixed a problem where static strings or buffers (contained in the
9537 15247 AML code) that are declared as package elements within the ASL
9538 15248 code could cause a fault because the interpreter would attempt to
9539 15249 delete them. These objects are now marked with the "static
9540 15250 object" flag to prevent any attempt to delete them.
9541 15251
9542 15252 Implemented an interpreter optimization to use operands directly
9543 15253 from the state object instead of extracting the operands to local
9544 15254 variables. This reduces stack use and code size, and improves
9545 15255 performance.
9546 15256
9547 15257 The module exxface.c was eliminated as it was an unnecessary extra
9548 15258 layer of code.
9549 15259
9550 15260 Current core subsystem library code sizes are shown below. These
9551 15261 are the code and data sizes for the acpica.lib produced by the
9552 15262 Microsoft Visual C++ 6.0 compiler, and these values do not include
9553 15263 any ACPI driver or OSPM code. The debug version of the code
9554 15264 includes the full debug trace mechanism -- leading to a much
9555 15265 larger code and data size. Note that these values will vary
9556 15266 depending on the efficiency of the compiler and the compiler
9557 15267 options used during generation.
9558 15268
9559 15269 Non-Debug Version: 65K Code, 5K Data, 70K Total
9560 15270 (Previously 69K) Debug Version: 138K Code, 58K Data, 196K
9561 15271 Total (Previously 195K)
9562 15272
9563 15273 Linux:
9564 15274
9565 15275 Support for ACPI 2.0 64-bit integers has been added. All ACPI
9566 15276 Integer objects are now 64 bits wide
9567 15277
9568 15278 All Acpi data types and structures are now in lower case. Only
9569 15279 Acpi macros are upper case for differentiation.
9570 15280
9571 15281 Documentation:
9572 15282
9573 15283 Changes to the external interfaces as described above.
9574 15284
9575 15285 ----------------------------------------
9576 15286 Summary of changes for this label: 08_31_01
9577 15287
9578 15288 ACPI CA Core Subsystem:
9579 15289
9580 15290 A bug with interpreter implementation of the ASL Divide operator
9581 15291 was found and fixed. The implicit function return value (not the
9582 15292 explicit store operands) was returning the remainder instead of
9583 15293 the quotient. This was a longstanding bug and it fixes several
9584 15294 known outstanding issues on various platforms.
9585 15295
9586 15296 The ACPI_DEBUG_PRINT and function trace entry/exit macros have
9587 15297 been further optimized for size. There are 700 invocations of the
9588 15298 DEBUG_PRINT macro alone, so each optimization reduces the size of
9589 15299 the debug version of the subsystem significantly.
9590 15300
9591 15301 A stack trace mechanism has been implemented. The maximum stack
9592 15302 usage is about 2K on 32-bit platforms. The debugger command "stat
9593 15303 stack" will display the current maximum stack usage.
9594 15304
9595 15305 All public symbols and global variables within the subsystem are
9596 15306 now prefixed with the string "Acpi". This keeps all of the
9597 15307 symbols grouped together in a kernel map, and avoids conflicts
9598 15308 with other kernel subsystems.
9599 15309
9600 15310 Most of the internal fixed lookup tables have been moved into the
9601 15311 code segment via the const operator.
9602 15312
9603 15313 Several enhancements have been made to the interpreter to both
9604 15314 reduce the code size and improve performance.
9605 15315
9606 15316 Current core subsystem library code sizes are shown below. These
9607 15317 are the code and data sizes for the acpica.lib produced by the
9608 15318 Microsoft Visual C++ 6.0 compiler, and these values do not include
9609 15319 any ACPI driver or OSPM code. The debug version of the code
9610 15320 includes the full debug trace mechanism which contains over 700
9611 15321 invocations of the DEBUG_PRINT macro, 500 function entry macro
9612 15322 invocations, and over 900 function exit macro invocations --
9613 15323 leading to a much larger code and data size. Note that these
9614 15324 values will vary depending on the efficiency of the compiler and
9615 15325 the compiler options used during generation.
9616 15326
9617 15327 Non-Debug Version: 64K Code, 5K Data, 69K Total
9618 15328 Debug Version: 137K Code, 58K Data, 195K Total
9619 15329
9620 15330 Linux:
9621 15331
9622 15332 Implemented wbinvd() macro, pending a kernel-wide definition.
9623 15333
9624 15334 Fixed /proc/acpi/event to handle poll() and short reads.
9625 15335
9626 15336 ASL Compiler, version X2026:
9627 15337
9628 15338 Fixed a problem introduced in the previous label where the AML
9629 15339
9630 15340 code emitted for package objects produced packages with zero
9631 15341 length.
9632 15342
9633 15343 ----------------------------------------
9634 15344 Summary of changes for this label: 08_16_01
9635 15345
9636 15346 ACPI CA Core Subsystem:
9637 15347
9638 15348 The following ACPI 2.0 ASL operators have been implemented in the
9639 15349 AML interpreter (These are already supported by the Intel ASL
9640 15350 compiler): ToDecimalString, ToHexString, ToString, ToInteger, and
9641 15351 ToBuffer. Support for 64-bit AML constants is implemented in the
9642 15352 AML parser, debugger, and disassembler.
9643 15353
9644 15354 The internal memory tracking mechanism (leak detection code) has
9645 15355 been upgraded to reduce the memory overhead (a separate tracking
9646 15356 block is no longer allocated for each memory allocation), and now
9647 15357 supports all of the internal object caches.
9648 15358
9649 15359 The data structures and code for the internal object caches have
9650 15360 been coelesced and optimized so that there is a single cache and
9651 15361 memory list data structure and a single group of functions that
9652 15362 implement generic cache management. This has reduced the code
9653 15363 size in both the debug and release versions of the subsystem.
9654 15364
9655 15365 The DEBUG_PRINT macro(s) have been optimized for size and replaced
9656 15366 by ACPI_DEBUG_PRINT. The syntax for this macro is slightly
9657 15367 different, because it generates a single call to an internal
9658 15368 function. This results in a savings of about 90 bytes per
9659 15369 invocation, resulting in an overall code and data savings of about
9660 15370 16% in the debug version of the subsystem.
9661 15371
9662 15372 Linux:
9663 15373
9664 15374 Fixed C3 disk corruption problems and re-enabled C3 on supporting
9665 15375 machines.
9666 15376
9667 15377 Integrated low-level sleep code by Patrick Mochel.
9668 15378
9669 15379 Further tweaked source code Linuxization.
9670 15380
9671 15381 Other minor fixes.
9672 15382
9673 15383 ASL Compiler:
9674 15384
9675 15385 Support for ACPI 2.0 variable length packages is fixed/completed.
9676 15386
9677 15387 Fixed a problem where the optional length parameter for the ACPI
9678 15388 2.0 ToString operator.
9679 15389
9680 15390 Fixed multiple extraneous error messages when a syntax error is
9681 15391 detected within the declaration line of a control method.
9682 15392
9683 15393 ----------------------------------------
9684 15394 Summary of changes for this label: 07_17_01
9685 15395
9686 15396 ACPI CA Core Subsystem:
9687 15397
9688 15398 Added a new interface named AcpiGetFirmwareTable to obtain any
9689 15399 ACPI table via the ACPI signature. The interface can be called at
9690 15400 any time during kernel initialization, even before the kernel
9691 15401 virtual memory manager is initialized and paging is enabled. This
9692 15402 allows kernel subsystems to obtain ACPI tables very early, even
9693 15403 before the ACPI CA subsystem is initialized.
9694 15404
9695 15405 Fixed a problem where Fields defined with the AnyAcc attribute
9696 15406 could be resolved to the incorrect address under the following
9697 15407 conditions: 1) the field width is larger than 8 bits and 2) the
9698 15408 parent operation region is not defined on a DWORD boundary.
9699 15409
9700 15410 Fixed a problem where the interpreter is not being locked during
9701 15411 namespace initialization (during execution of the _INI control
9702 15412 methods), causing an error when an attempt is made to release it
9703 15413 later.
9704 15414
9705 15415 ACPI 2.0 support in the AML Interpreter has begun and will be
9706 15416 ongoing throughout the rest of this year. In this label, The Mod
9707 15417 operator is implemented.
9708 15418
9709 15419 Added a new data type to contain full PCI addresses named
9710 15420 ACPI_PCI_ID. This structure contains the PCI Segment, Bus, Device,
9711 15421 and Function values.
9712 15422
9713 15423 Linux:
9714 15424
9715 15425 Enhanced the Linux version of the source code to change most
9716 15426 capitalized ACPI type names to lowercase. For example, all
9717 15427 instances of ACPI_STATUS are changed to acpi_status. This will
9718 15428 result in a large diff, but the change is strictly cosmetic and
9719 15429 aligns the CA code closer to the Linux coding standard.
9720 15430
9721 15431 OSL Interfaces:
9722 15432
9723 15433 The interfaces to the PCI configuration space have been changed to
9724 15434 add the PCI Segment number and to split the single 32-bit combined
9725 15435 DeviceFunction field into two 16-bit fields. This was
9726 15436 accomplished by moving the four values that define an address in
9727 15437 PCI configuration space (segment, bus, device, and function) to
9728 15438 the new ACPI_PCI_ID structure.
9729 15439
9730 15440 The changes to the PCI configuration space interfaces led to a
9731 15441 reexamination of the complete set of address space access
9732 15442 interfaces for PCI, I/O, and Memory. The previously existing 18
9733 15443 interfaces have proven difficult to maintain (any small change
9734 15444 must be propagated across at least 6 interfaces) and do not easily
9735 15445 allow for future expansion to 64 bits if necessary. Also, on some
9736 15446 systems, it would not be appropriate to demultiplex the access
9737 15447 width (8, 16, 32,or 64) before calling the OSL if the
9738 15448 corresponding native OS interfaces contain a similar access width
9739 15449 parameter. For these reasons, the 18 address space interfaces
9740 15450 have been replaced by these 6 new ones:
9741 15451
9742 15452 AcpiOsReadPciConfiguration
9743 15453 AcpiOsWritePciConfiguration
9744 15454 AcpiOsReadMemory
9745 15455 AcpiOsWriteMemory
9746 15456 AcpiOsReadPort
9747 15457 AcpiOsWritePort
9748 15458
9749 15459 Added a new interface named AcpiOsGetRootPointer to allow the OSL
9750 15460 to perform the platform and/or OS-specific actions necessary to
9751 15461 obtain the ACPI RSDP table pointer. On IA-32 platforms, this
9752 15462 interface will simply call down to the CA core to perform the low-
9753 15463 memory search for the table. On IA-64, the RSDP is obtained from
9754 15464 EFI. Migrating this interface to the OSL allows the CA core to
9755 15465
9756 15466 remain OS and platform independent.
9757 15467
9758 15468 Added a new interface named AcpiOsSignal to provide a generic
9759 15469 "function code and pointer" interface for various miscellaneous
9760 15470 signals and notifications that must be made to the host OS. The
9761 15471 first such signals are intended to support the ASL Fatal and
9762 15472 Breakpoint operators. In the latter case, the AcpiOsBreakpoint
9763 15473 interface has been obsoleted.
9764 15474
9765 15475 The definition of the AcpiFormatException interface has been
9766 15476 changed to simplify its use. The caller no longer must supply a
9767 15477 buffer to the call; A pointer to a const string is now returned
9768 15478 directly. This allows the call to be easily used in printf
9769 15479 statements, etc. since the caller does not have to manage a local
9770 15480 buffer.
9771 15481
9772 15482
9773 15483 ASL Compiler, Version X2025:
9774 15484
9775 15485 The ACPI 2.0 Switch/Case/Default operators have been implemented
9776 15486 and are fully functional. They will work with all ACPI 1.0
9777 15487 interpreters, since the operators are simply translated to If/Else
9778 15488 pairs.
9779 15489
9780 15490 The ACPI 2.0 ElseIf operator is implemented and will also work
9781 15491 with 1.0 interpreters, for the same reason.
9782 15492
9783 15493 Implemented support for ACPI 2.0 variable-length packages. These
9784 15494 packages have a separate opcode, and their size is determined by
9785 15495 the interpreter at run-time.
9786 15496
9787 15497 Documentation The ACPI CA Programmer Reference has been updated to
9788 15498 reflect the new interfaces and changes to existing interfaces.
9789 15499
9790 15500 ------------------------------------------
9791 15501 Summary of changes for this label: 06_15_01
9792 15502
9793 15503 ACPI CA Core Subsystem:
9794 15504
9795 15505 Fixed a problem where a DWORD-accessed field within a Buffer
9796 15506 object would get its byte address inadvertently rounded down to
9797 15507 the nearest DWORD. Buffers are always Byte-accessible.
9798 15508
9799 15509 ASL Compiler, version X2024:
9800 15510
9801 15511 Fixed a problem where the Switch() operator would either fault or
9802 15512 hang the compiler. Note however, that the AML code for this ACPI
9803 15513 2.0 operator is not yet implemented.
9804 15514
9805 15515 Compiler uses the new AcpiOsGetTimer interface to obtain compile
9806 15516 timings.
9807 15517
9808 15518 Implementation of the CreateField operator automatically converts
9809 15519 a reference to a named field within a resource descriptor from a
9810 15520 byte offset to a bit offset if required.
9811 15521
9812 15522 Added some missing named fields from the resource descriptor
9813 15523 support. These are the names that are automatically created by the
9814 15524 compiler to reference fields within a descriptor. They are only
9815 15525 valid at compile time and are not passed through to the AML
9816 15526 interpreter.
9817 15527
9818 15528 Resource descriptor named fields are now typed as Integers and
9819 15529 subject to compile-time typechecking when used in expressions.
9820 15530
9821 15531 ------------------------------------------
9822 15532 Summary of changes for this label: 05_18_01
9823 15533
9824 15534 ACPI CA Core Subsystem:
9825 15535
9826 15536 Fixed a couple of problems in the Field support code where bits
9827 15537 from adjacent fields could be returned along with the proper field
9828 15538 bits. Restructured the field support code to improve performance,
9829 15539 readability and maintainability.
9830 15540
9831 15541 New DEBUG_PRINTP macro automatically inserts the procedure name
9832 15542 into the output, saving hundreds of copies of procedure name
9833 15543 strings within the source, shrinking the memory footprint of the
9834 15544 debug version of the core subsystem.
9835 15545
9836 15546 Source Code Structure:
9837 15547
9838 15548 The source code directory tree was restructured to reflect the
9839 15549 current organization of the component architecture. Some files
9840 15550 and directories have been moved and/or renamed.
9841 15551
9842 15552 Linux:
9843 15553
9844 15554 Fixed leaking kacpidpc processes.
9845 15555
9846 15556 Fixed queueing event data even when /proc/acpi/event is not
9847 15557 opened.
9848 15558
9849 15559 ASL Compiler, version X2020:
9850 15560
9851 15561 Memory allocation performance enhancement - over 24X compile time
9852 15562 improvement on large ASL files. Parse nodes and namestring
9853 15563 buffers are now allocated from a large internal compiler buffer.
9854 15564
9855 15565 The temporary .SRC file is deleted unless the "-s" option is
9856 15566 specified
9857 15567
9858 15568 The "-d" debug output option now sends all output to the .DBG file
9859 15569 instead of the console.
9860 15570
9861 15571 "External" second parameter is now optional
9862 15572
9863 15573 "ElseIf" syntax now properly allows the predicate
9864 15574
9865 15575 Last operand to "Load" now recognized as a Target operand
9866 15576
9867 15577 Debug object can now be used anywhere as a normal object.
9868 15578
9869 15579 ResourceTemplate now returns an object of type BUFFER
9870 15580
9871 15581 EISAID now returns an object of type INTEGER
9872 15582
9873 15583 "Index" now works with a STRING operand
9874 15584
9875 15585 "LoadTable" now accepts optional parameters
9876 15586
9877 15587 "ToString" length parameter is now optional
9878 15588
9879 15589 "Interrupt (ResourceType," parse error fixed.
9880 15590
9881 15591 "Register" with a user-defined region space parse error fixed
9882 15592
9883 15593 Escaped backslash at the end of a string ("\\") scan/parse error
9884 15594 fixed
9885 15595
9886 15596 "Revision" is now an object of type INTEGER.
9887 15597
9888 15598
9889 15599
9890 15600 ------------------------------------------
9891 15601 Summary of changes for this label: 05_02_01
9892 15602
9893 15603 Linux:
9894 15604
9895 15605 /proc/acpi/event now blocks properly.
9896 15606
9897 15607 Removed /proc/sys/acpi. You can still dump your DSDT from
9898 15608 /proc/acpi/dsdt.
9899 15609
9900 15610 ACPI CA Core Subsystem:
9901 15611
9902 15612 Fixed a problem introduced in the previous label where some of the
9903 15613 "small" resource descriptor types were not recognized.
9904 15614
9905 15615 Improved error messages for the case where an ASL Field is outside
9906 15616 the range of the parent operation region.
9907 15617
9908 15618 ASL Compiler, version X2018:
9909 15619
9910 15620
9911 15621 Added error detection for ASL Fields that extend beyond the length
9912 15622 of the parent operation region (only if the length of the region
9913 15623 is known at compile time.) This includes fields that have a
9914 15624 minimum access width that is smaller than the parent region, and
9915 15625 individual field units that are partially or entirely beyond the
9916 15626 extent of the parent.
9917 15627
9918 15628
9919 15629
9920 15630 ------------------------------------------
9921 15631 Summary of changes for this label: 04_27_01
9922 15632
9923 15633 ACPI CA Core Subsystem:
9924 15634
9925 15635 Fixed a problem where the namespace mutex could be released at the
9926 15636 wrong time during execution of AcpiRemoveAddressSpaceHandler.
9927 15637
9928 15638 Added optional thread ID output for debug traces, to simplify
9929 15639 debugging of multiple threads. Added context switch notification
9930 15640 when the debug code realizes that a different thread is now
9931 15641 executing ACPI code.
9932 15642
9933 15643 Some additional external data types have been prefixed with the
9934 15644 string "ACPI_" for consistency. This may effect existing code.
9935 15645 The data types affected are the external callback typedefs - e.g.,
9936 15646
9937 15647 WALK_CALLBACK becomes ACPI_WALK_CALLBACK.
9938 15648
9939 15649 Linux:
9940 15650
9941 15651 Fixed an issue with the OSL semaphore implementation where a
9942 15652 thread was waking up with an error from receiving a SIGCHLD
9943 15653 signal.
9944 15654
9945 15655 Linux version of ACPI CA now uses the system C library for string
9946 15656 manipulation routines instead of a local implementation.
9947 15657
9948 15658 Cleaned up comments and removed TBDs.
9949 15659
9950 15660 ASL Compiler, version X2017:
9951 15661
9952 15662 Enhanced error detection and reporting for all file I/O
9953 15663 operations.
9954 15664
9955 15665 Documentation:
9956 15666
9957 15667 Programmer Reference updated to version 1.06.
9958 15668
9959 15669
9960 15670
9961 15671 ------------------------------------------
9962 15672 Summary of changes for this label: 04_13_01
9963 15673
9964 15674 ACPI CA Core Subsystem:
9965 15675
9966 15676 Restructured support for BufferFields and RegionFields.
9967 15677 BankFields support is now fully operational. All known 32-bit
9968 15678 limitations on field sizes have been removed. Both BufferFields
9969 15679 and (Operation) RegionFields are now supported by the same field
9970 15680 management code.
9971 15681
9972 15682 Resource support now supports QWORD address and IO resources. The
9973 15683 16/32/64 bit address structures and the Extended IRQ structure
9974 15684 have been changed to properly handle Source Resource strings.
9975 15685
9976 15686 A ThreadId of -1 is now used to indicate a "mutex not acquired"
9977 15687 condition internally and must never be returned by AcpiOsThreadId.
9978 15688 This reserved value was changed from 0 since Unix systems allow a
9979 15689 thread ID of 0.
9980 15690
9981 15691 Linux:
9982 15692
9983 15693 Driver code reorganized to enhance portability
9984 15694
9985 15695 Added a kernel configuration option to control ACPI_DEBUG
9986 15696
9987 15697 Fixed the EC driver to honor _GLK.
9988 15698
9989 15699 ASL Compiler, version X2016:
9990 15700
9991 15701 Fixed support for the "FixedHw" keyword. Previously, the FixedHw
9992 15702 address space was set to 0, not 0x7f as it should be.
9993 15703
9994 15704 ------------------------------------------
9995 15705 Summary of changes for this label: 03_13_01
9996 15706
9997 15707 ACPI CA Core Subsystem:
9998 15708
9999 15709 During ACPI initialization, the _SB_._INI method is now run if
10000 15710 present.
10001 15711
10002 15712 Notify handler fix - notifies are deferred until the parent method
10003 15713 completes execution. This fixes the "mutex already acquired"
10004 15714 issue seen occasionally.
10005 15715
10006 15716 Part of the "implicit conversion" rules in ACPI 2.0 have been
10007 15717 found to cause compatibility problems with existing ASL/AML. The
10008 15718 convert "result-to-target-type" implementation has been removed
10009 15719 for stores to method Args and Locals. Source operand conversion
10010 15720 is still fully implemented. Possible changes to ACPI 2.0
10011 15721 specification pending.
10012 15722
10013 15723 Fix to AcpiRsCalculatePciRoutingTableLength to return correct
10014 15724 length.
10015 15725
10016 15726 Fix for compiler warnings for 64-bit compiles.
10017 15727
10018 15728 Linux:
10019 15729
10020 15730 /proc output aligned for easier parsing.
10021 15731
10022 15732 Release-version compile problem fixed.
10023 15733
10024 15734 New kernel configuration options documented in Configure.help.
10025 15735
10026 15736 IBM 600E - Fixed Sleep button may generate "Invalid <NULL>
10027 15737 context" message.
10028 15738
10029 15739 OSPM:
10030 15740
10031 15741 Power resource driver integrated with bus manager.
10032 15742
10033 15743 Fixed kernel fault during active cooling for thermal zones.
10034 15744
10035 15745 Source Code:
10036 15746
10037 15747 The source code tree has been restructured.
10038 15748
10039 15749
10040 15750
10041 15751 ------------------------------------------
10042 15752 Summary of changes for this label: 03_02_01
10043 15753
10044 15754 Linux OS Services Layer (OSL):
10045 15755
10046 15756 Major revision of all Linux-specific code.
10047 15757
10048 15758 Modularized all ACPI-specific drivers.
10049 15759
10050 15760 Added new thermal zone and power resource drivers.
10051 15761
10052 15762 Revamped /proc interface (new functionality is under /proc/acpi).
10053 15763
10054 15764 New kernel configuration options.
10055 15765
10056 15766 Linux known issues:
10057 15767
10058 15768 New kernel configuration options not documented in Configure.help
10059 15769 yet.
10060 15770
10061 15771
10062 15772 Module dependencies not currently implemented. If used, they
10063 15773 should be loaded in this order: busmgr, power, ec, system,
10064 15774 processor, battery, ac_adapter, button, thermal.
10065 15775
10066 15776 Modules will not load if CONFIG_MODVERSION is set.
10067 15777
10068 15778 IBM 600E - entering S5 may reboot instead of shutting down.
10069 15779
10070 15780 IBM 600E - Sleep button may generate "Invalid <NULL> context"
10071 15781 message.
10072 15782
10073 15783 Some systems may fail with "execution mutex already acquired"
10074 15784 message.
10075 15785
10076 15786 ACPI CA Core Subsystem:
10077 15787
10078 15788 Added a new OSL Interface, AcpiOsGetThreadId. This was required
10079 15789 for the deadlock detection code. Defined to return a non-zero, 32-
10080 15790 bit thread ID for the currently executing thread. May be a non-
10081 15791 zero constant integer on single-thread systems.
10082 15792
10083 15793 Implemented deadlock detection for internal subsystem mutexes. We
10084 15794 may add conditional compilation for this code (debug only) later.
10085 15795
10086 15796 ASL/AML Mutex object semantics are now fully supported. This
10087 15797 includes multiple acquires/releases by owner and support for the
10088 15798
10089 15799 Mutex SyncLevel parameter.
10090 15800
10091 15801 A new "Force Release" mechanism automatically frees all ASL
10092 15802 Mutexes that have been acquired but not released when a thread
10093 15803 exits the interpreter. This forces conformance to the ACPI spec
10094 15804 ("All mutexes must be released when an invocation exits") and
10095 15805 prevents deadlocked ASL threads. This mechanism can be expanded
10096 15806 (later) to monitor other resource acquisitions if OEM ASL code
10097 15807 continues to misbehave (which it will).
10098 15808
10099 15809 Several new ACPI exception codes have been added for the Mutex
10100 15810 support.
10101 15811
10102 15812 Recursive method calls are now allowed and supported (the ACPI
10103 15813 spec does in fact allow recursive method calls.) The number of
10104 15814 recursive calls is subject to the restrictions imposed by the
10105 15815 SERIALIZED method keyword and SyncLevel (ACPI 2.0) method
10106 15816 parameter.
10107 15817
10108 15818 Implemented support for the SyncLevel parameter for control
10109 15819 methods (ACPI 2.0 feature)
10110 15820
10111 15821 Fixed a deadlock problem when multiple threads attempted to use
10112 15822 the interpreter.
10113 15823
10114 15824 Fixed a problem where the string length of a String package
10115 15825 element was not always set in a package returned from
10116 15826 AcpiEvaluateObject.
10117 15827
10118 15828 Fixed a problem where the length of a String package element was
10119 15829 not always included in the length of the overall package returned
10120 15830 from AcpiEvaluateObject.
10121 15831
10122 15832 Added external interfaces (Acpi*) to the ACPI debug memory
10123 15833 manager. This manager keeps a list of all outstanding
10124 15834 allocations, and can therefore detect memory leaks and attempts to
10125 15835 free memory blocks more than once. Useful for code such as the
10126 15836 power manager, etc. May not be appropriate for device drivers.
10127 15837 Performance with the debug code enabled is slow.
10128 15838
10129 15839 The ACPI Global Lock is now an optional hardware element.
10130 15840
10131 15841 ASL Compiler Version X2015:
10132 15842
10133 15843 Integrated changes to allow the compiler to be generated on
10134 15844 multiple platforms.
10135 15845
10136 15846 Linux makefile added to generate the compiler on Linux
10137 15847
10138 15848 Source Code:
10139 15849
10140 15850 All platform-specific headers have been moved to their own
10141 15851 subdirectory, Include/Platform.
10142 15852
10143 15853 New source file added, Interpreter/ammutex.c
10144 15854
10145 15855 New header file, Include/acstruct.h
10146 15856
10147 15857 Documentation:
10148 15858
10149 15859 The programmer reference has been updated for the following new
10150 15860 interfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree
10151 15861
10152 15862 ------------------------------------------
10153 15863 Summary of changes for this label: 02_08_01
10154 15864
10155 15865 Core ACPI CA Subsystem: Fixed a problem where an error was
10156 15866 incorrectly returned if the return resource buffer was larger than
10157 15867 the actual data (in the resource interfaces).
10158 15868
10159 15869 References to named objects within packages are resolved to the
10160 15870
10161 15871 full pathname string before packages are returned directly (via
10162 15872 the AcpiEvaluateObject interface) or indirectly via the resource
10163 15873 interfaces.
10164 15874
10165 15875 Linux OS Services Layer (OSL):
10166 15876
10167 15877 Improved /proc battery interface.
10168 15878
10169 15879
10170 15880 Added C-state debugging output and other miscellaneous fixes.
10171 15881
10172 15882 ASL Compiler Version X2014:
10173 15883
10174 15884 All defined method arguments can now be used as local variables,
10175 15885 including the ones that are not actually passed in as parameters.
10176 15886 The compiler tracks initialization of the arguments and issues an
10177 15887 exception if they are used without prior assignment (just like
10178 15888 locals).
10179 15889
10180 15890 The -o option now specifies a filename prefix that is used for all
10181 15891 output files, including the AML output file. Otherwise, the
10182 15892 default behavior is as follows: 1) the AML goes to the file
10183 15893 specified in the DSDT. 2) all other output files use the input
10184 15894 source filename as the base.
10185 15895
10186 15896 ------------------------------------------
10187 15897 Summary of changes for this label: 01_25_01
10188 15898
10189 15899 Core ACPI CA Subsystem: Restructured the implementation of object
10190 15900 store support within the interpreter. This includes support for
10191 15901 the Store operator as well as any ASL operators that include a
10192 15902 target operand.
10193 15903
10194 15904 Partially implemented support for Implicit Result-to-Target
10195 15905 conversion. This is when a result object is converted on the fly
10196 15906 to the type of an existing target object. Completion of this
10197 15907 support is pending further analysis of the ACPI specification
10198 15908 concerning this matter.
10199 15909
10200 15910 CPU-specific code has been removed from the subsystem (hardware
10201 15911 directory).
10202 15912
10203 15913 New Power Management Timer functions added
10204 15914
10205 15915 Linux OS Services Layer (OSL): Moved system state transition code
10206 15916 to the core, fixed it, and modified Linux OSL accordingly.
10207 15917
10208 15918 Fixed C2 and C3 latency calculations.
10209 15919
10210 15920
10211 15921 We no longer use the compilation date for the version message on
10212 15922 initialization, but retrieve the version from AcpiGetSystemInfo().
10213 15923
10214 15924 Incorporated for fix Sony VAIO machines.
10215 15925
10216 15926 Documentation: The Programmer Reference has been updated and
10217 15927 reformatted.
10218 15928
10219 15929
10220 15930 ASL Compiler: Version X2013: Fixed a problem where the line
10221 15931 numbering and error reporting could get out of sync in the
10222 15932 presence of multiple include files.
10223 15933
10224 15934 ------------------------------------------
10225 15935 Summary of changes for this label: 01_15_01
10226 15936
10227 15937 Core ACPI CA Subsystem:
10228 15938
10229 15939 Implemented support for type conversions in the execution of the
10230 15940 ASL Concatenate operator (The second operand is converted to
10231 15941 match the type of the first operand before concatenation.)
10232 15942
10233 15943 Support for implicit source operand conversion is partially
10234 15944 implemented. The ASL source operand types Integer, Buffer, and
10235 15945 String are freely interchangeable for most ASL operators and are
10236 15946 converted by the interpreter on the fly as required. Implicit
10237 15947 Target operand conversion (where the result is converted to the
10238 15948 target type before storing) is not yet implemented.
10239 15949
10240 15950 Support for 32-bit and 64-bit BCD integers is implemented.
10241 15951
10242 15952 Problem fixed where a field read on an aligned field could cause a
10243 15953 read past the end of the field.
10244 15954
10245 15955 New exception, AE_AML_NO_RETURN_VALUE, is returned when a method
10246 15956 does not return a value, but the caller expects one. (The ASL
10247 15957 compiler flags this as a warning.)
10248 15958
10249 15959 ASL Compiler:
10250 15960
10251 15961 Version X2011:
10252 15962 1. Static typechecking of all operands is implemented. This
10253 15963 prevents the use of invalid objects (such as using a Package where
10254 15964 an Integer is required) at compile time instead of at interpreter
10255 15965 run-time.
10256 15966 2. The ASL source line is printed with ALL errors and warnings.
10257 15967 3. Bug fix for source EOF without final linefeed.
10258 15968 4. Debug option is split into a parse trace and a namespace trace.
10259 15969 5. Namespace output option (-n) includes initial values for
10260 15970 integers and strings.
10261 15971 6. Parse-only option added for quick syntax checking.
10262 15972 7. Compiler checks for duplicate ACPI name declarations
10263 15973
10264 15974 Version X2012:
10265 15975 1. Relaxed typechecking to allow interchangeability between
10266 15976 strings, integers, and buffers. These types are now converted by
10267 15977 the interpreter at runtime.
10268 15978 2. Compiler reports time taken by each internal subsystem in the
10269 15979 debug output file.
10270 15980
10271 15981
10272 15982 ------------------------------------------
10273 15983 Summary of changes for this label: 12_14_00
10274 15984
10275 15985 ASL Compiler:
10276 15986
10277 15987 This is the first official release of the compiler. Since the
10278 15988 compiler requires elements of the Core Subsystem, this label
10279 15989 synchronizes everything.
10280 15990
10281 15991 ------------------------------------------
10282 15992 Summary of changes for this label: 12_08_00
10283 15993
10284 15994
10285 15995 Fixed a problem where named references within the ASL definition
10286 15996 of both OperationRegions and CreateXXXFields did not work
10287 15997 properly. The symptom was an AE_AML_OPERAND_TYPE during
10288 15998 initialization of the region/field. This is similar (but not
10289 15999 related internally) to the problem that was fixed in the last
10290 16000 label.
10291 16001
10292 16002 Implemented both 32-bit and 64-bit support for the BCD ASL
10293 16003 functions ToBCD and FromBCD.
10294 16004
10295 16005 Updated all legal headers to include "2000" in the copyright
10296 16006 years.
10297 16007
10298 16008 ------------------------------------------
10299 16009 Summary of changes for this label: 12_01_00
10300 16010
10301 16011 Fixed a problem where method invocations within the ASL definition
10302 16012 of both OperationRegions and CreateXXXFields did not work
10303 16013 properly. The symptom was an AE_AML_OPERAND_TYPE during
10304 16014 initialization of the region/field:
10305 16015
10306 16016 nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments
10307 16017 [DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s)
10308 16018 (0x3005)
10309 16019
10310 16020 Fixed a problem where operators with more than one nested
10311 16021 subexpression would fail. The symptoms were varied, by mostly
10312 16022 AE_AML_OPERAND_TYPE errors. This was actually a rather serious
10313 16023 problem that has gone unnoticed until now.
10314 16024
10315 16025 Subtract (Add (1,2), Multiply (3,4))
10316 16026
10317 16027 Fixed a problem where AcpiGetHandle didn't quite get fixed in the
10318 16028 previous build (The prefix part of a relative path was handled
10319 16029 incorrectly).
10320 16030
10321 16031 Fixed a problem where Operation Region initialization failed if
10322 16032 the operation region name was a "namepath" instead of a simple
10323 16033 "nameseg". Symptom was an AE_NO_OPERAND error.
10324 16034
10325 16035 Fixed a problem where an assignment to a local variable via the
10326 16036 indirect RefOf mechanism only worked for the first such
10327 16037 assignment. Subsequent assignments were ignored.
10328 16038
10329 16039 ------------------------------------------
10330 16040 Summary of changes for this label: 11_15_00
10331 16041
10332 16042 ACPI 2.0 table support with backwards support for ACPI 1.0 and the
10333 16043 0.71 extensions. Note: although we can read ACPI 2.0 BIOS tables,
10334 16044 the AML interpreter does NOT have support for the new 2.0 ASL
10335 16045 grammar terms at this time.
10336 16046
10337 16047 All ACPI hardware access is via the GAS structures in the ACPI 2.0
10338 16048 FADT.
10339 16049
10340 16050 All physical memory addresses across all platforms are now 64 bits
10341 16051 wide. Logical address width remains dependent on the platform
10342 16052 (i.e., "void *").
10343 16053
10344 16054 AcpiOsMapMemory interface changed to a 64-bit physical address.
10345 16055
10346 16056 The AML interpreter integer size is now 64 bits, as per the ACPI
10347 16057 2.0 specification.
10348 16058
10349 16059 For backwards compatibility with ACPI 1.0, ACPI tables with a
10350 16060 revision number less than 2 use 32-bit integers only.
10351 16061
10352 16062 Fixed a problem where the evaluation of OpRegion operands did not
10353 16063 always resolve them to numbers properly.
10354 16064
10355 16065 ------------------------------------------
10356 16066 Summary of changes for this label: 10_20_00
10357 16067
10358 16068 Fix for CBN_._STA issue. This fix will allow correct access to
10359 16069 CBN_ OpRegions when the _STA returns 0x8.
10360 16070
10361 16071 Support to convert ACPI constants (Ones, Zeros, One) to actual
10362 16072 values before a package object is returned
10363 16073
10364 16074 Fix for method call as predicate to if/while construct causing
10365 16075 incorrect if/while behavior
10366 16076
10367 16077 Fix for Else block package lengths sometimes calculated wrong (if
10368 16078 block > 63 bytes)
10369 16079
10370 16080 Fix for Processor object length field, was always zero
10371 16081
10372 16082 Table load abort if FACP sanity check fails
10373 16083
10374 16084 Fix for problem with Scope(name) if name already exists
10375 16085
10376 16086 Warning emitted if a named object referenced cannot be found
10377 16087 (resolved) during method execution.
10378 16088
10379 16089
10380 16090
10381 16091
10382 16092
10383 16093 ------------------------------------------
10384 16094 Summary of changes for this label: 9_29_00
10385 16095
10386 16096 New table initialization interfaces: AcpiInitializeSubsystem no
10387 16097 longer has any parameters AcpiFindRootPointer - Find the RSDP (if
10388 16098 necessary) AcpiLoadTables (RSDP) - load all tables found at RSDP-
10389 16099 >RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by
10390 16100 AcpiLoadTables
10391 16101
10392 16102 Note: These interface changes require changes to all existing OSDs
10393 16103
10394 16104 The PCI_Config default address space handler is always installed
10395 16105 at the root namespace object.
10396 16106
10397 16107 -------------------------------------------
10398 16108 Summary of changes for this label: 09_15_00
10399 16109
10400 16110 The new initialization architecture is implemented. New
10401 16111 interfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize)
10402 16112 AcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace
10403 16113
10404 16114 (Namespace is automatically loaded when a table is loaded)
10405 16115
10406 16116 The ACPI_OPERAND_OBJECT has been optimized to shrink its size from
10407 16117 52 bytes to 32 bytes. There is usually one of these for every
10408 16118 namespace object, so the memory savings is significant.
10409 16119
10410 16120 Implemented just-in-time evaluation of the CreateField operators.
10411 16121
10412 16122 Bug fixes for IA-64 support have been integrated.
10413 16123
10414 16124 Additional code review comments have been implemented
10415 16125
10416 16126 The so-called "third pass parse" has been replaced by a final walk
10417 16127 through the namespace to initialize all operation regions (address
10418 16128 spaces) and fields that have not yet been initialized during the
10419 16129 execution of the various _INI and REG methods.
10420 16130
10421 16131 New file - namespace/nsinit.c
10422 16132
10423 16133 -------------------------------------------
10424 16134 Summary of changes for this label: 09_01_00
10425 16135
10426 16136 Namespace manager data structures have been reworked to change the
10427 16137 primary object from a table to a single object. This has
10428 16138 resulted in dynamic memory savings of 3X within the namespace and
10429 16139 2X overall in the ACPI CA subsystem.
10430 16140
10431 16141 Fixed problem where the call to AcpiEvFindPciRootBuses was
10432 16142 inadvertently left commented out.
10433 16143
10434 16144 Reduced the warning count when generating the source with the GCC
10435 16145 compiler.
10436 16146
10437 16147 Revision numbers added to each module header showing the
10438 16148 SourceSafe version of the file. Please refer to this version
10439 16149 number when giving us feedback or comments on individual modules.
10440 16150
10441 16151 The main object types within the subsystem have been renamed to
10442 16152 clarify their purpose:
10443 16153
10444 16154 ACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT
10445 16155 ACPI_GENERIC_OP -> ACPI_PARSE_OBJECT
10446 16156 ACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE
10447 16157
10448 16158 NOTE: no changes to the initialization sequence are included in
10449 16159 this label.
10450 16160
10451 16161 -------------------------------------------
10452 16162 Summary of changes for this label: 08_23_00
10453 16163
10454 16164 Fixed problem where TerminateControlMethod was being called
10455 16165 multiple times per method
10456 16166
10457 16167 Fixed debugger problem where single stepping caused a semaphore to
10458 16168 be oversignalled
10459 16169
10460 16170 Improved performance through additional parse object caching -
10461 16171 added ACPI_EXTENDED_OP type
10462 16172
10463 16173 -------------------------------------------
10464 16174 Summary of changes for this label: 08_10_00
10465 16175
10466 16176 Parser/Interpreter integration: Eliminated the creation of
10467 16177 complete parse trees for ACPI tables and control methods.
10468 16178 Instead, parse subtrees are created and then deleted as soon as
10469 16179 they are processed (Either entered into the namespace or executed
10470 16180 by the interpreter). This reduces the use of dynamic kernel
10471 16181 memory significantly. (about 10X)
10472 16182
10473 16183 Exception codes broken into classes and renumbered. Be sure to
10474 16184 recompile all code that includes acexcep.h. Hopefully we won't
10475 16185 have to renumber the codes again now that they are split into
10476 16186 classes (environment, programmer, AML code, ACPI table, and
10477 16187 internal).
10478 16188
10479 16189 Fixed some additional alignment issues in the Resource Manager
10480 16190 subcomponent
10481 16191
10482 16192 Implemented semaphore tracking in the AcpiExec utility, and fixed
10483 16193 several places where mutexes/semaphores were being unlocked
10484 16194 without a corresponding lock operation. There are no known
10485 16195 semaphore or mutex "leaks" at this time.
10486 16196
10487 16197 Fixed the case where an ASL Return operator is used to return an
10488 16198 unnamed package.
10489 16199
10490 16200 -------------------------------------------
10491 16201 Summary of changes for this label: 07_28_00
10492 16202
10493 16203 Fixed a problem with the way addresses were calculated in
10494 16204 AcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem
10495 16205 manifested itself when a Field was created with WordAccess or
10496 16206 DwordAccess, but the field unit defined within the Field was less
10497 16207
10498 16208 than a Word or Dword.
10499 16209
10500 16210 Fixed a problem in AmlDumpOperands() module's loop to pull
10501 16211 operands off of the operand stack to display information. The
10502 16212 problem manifested itself as a TLB error on 64-bit systems when
10503 16213 accessing an operand stack with two or more operands.
10504 16214
10505 16215 Fixed a problem with the PCI configuration space handlers where
10506 16216 context was getting confused between accesses. This required a
10507 16217 change to the generic address space handler and address space
10508 16218 setup definitions. Handlers now get both a global handler context
10509 16219 (this is the one passed in by the user when executing
10510 16220 AcpiInstallAddressSpaceHandler() and a specific region context
10511 16221 that is unique to each region (For example, the _ADR, _SEG and
10512 16222 _BBN values associated with a specific region). The generic
10513 16223 function definitions have changed to the following:
10514 16224
10515 16225 typedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function,
10516 16226 UINT32 Address, UINT32 BitWidth, UINT32 *Value, void
10517 16227 *HandlerContext, // This used to be void *Context void
10518 16228 *RegionContext); // This is an additional parameter
10519 16229
10520 16230 typedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE
10521 16231 RegionHandle, UINT32 Function, void *HandlerContext, void
10522 16232 **RegionContext); // This used to be **ReturnContext
10523 16233
10524 16234 -------------------------------------------
10525 16235 Summary of changes for this label: 07_21_00
10526 16236
10527 16237 Major file consolidation and rename. All files within the
10528 16238 interpreter have been renamed as well as most header files. This
10529 16239 was done to prevent collisions with existing files in the host
10530 16240 OSs -- filenames such as "config.h" and "global.h" seem to be
10531 16241 quite common. The VC project files have been updated. All
10532 16242 makefiles will require modification.
10533 16243
10534 16244 The parser/interpreter integration continues in Phase 5 with the
10535 16245 implementation of a complete 2-pass parse (the AML is parsed
10536 16246 twice) for each table; This avoids the construction of a huge
10537 16247 parse tree and therefore reduces the amount of dynamic memory
10538 16248 required by the subsystem. Greater use of the parse object cache
10539 16249 means that performance is unaffected.
10540 16250
10541 16251 Many comments from the two code reviews have been rolled in.
10542 16252
10543 16253 The 64-bit alignment support is complete.
10544 16254
10545 16255 -------------------------------------------
10546 16256 Summary of changes for this label: 06_30_00
10547 16257
10548 16258 With a nod and a tip of the hat to the technology of yesteryear,
10549 16259 we've added support in the source code for 80 column output
10550 16260 devices. The code is now mostly constrained to 80 columns or
10551 16261 less to support environments and editors that 1) cannot display
10552 16262 or print more than 80 characters on a single line, and 2) cannot
10553 16263 disable line wrapping.
10554 16264
10555 16265 A major restructuring of the namespace data structure has been
10556 16266 completed. The result is 1) cleaner and more
10557 16267 understandable/maintainable code, and 2) a significant reduction
10558 16268 in the dynamic memory requirement for each named ACPI object
10559 16269 (almost half).
10560 16270
10561 16271 -------------------------------------------
10562 16272 Summary of changes for this label: 06_23_00
10563 16273
10564 16274 Linux support has been added. In order to obtain approval to get
10565 16275 the ACPI CA subsystem into the Linux kernel, we've had to make
10566 16276 quite a few changes to the base subsystem that will affect all
10567 16277 users (all the changes are generic and OS- independent). The
10568 16278 effects of these global changes have been somewhat far reaching.
10569 16279 Files have been merged and/or renamed and interfaces have been
10570 16280 renamed. The major changes are described below.
10571 16281
10572 16282 Osd* interfaces renamed to AcpiOs* to eliminate namespace
10573 16283 pollution/confusion within our target kernels. All OSD
10574 16284 interfaces must be modified to match the new naming convention.
10575 16285
10576 16286 Files merged across the subsystem. A number of the smaller source
10577 16287 and header files have been merged to reduce the file count and
10578 16288 increase the density of the existing files. There are too many
10579 16289 to list here. In general, makefiles that call out individual
10580 16290 files will require rebuilding.
10581 16291
10582 16292 Interpreter files renamed. All interpreter files now have the
10583 16293 prefix am* instead of ie* and is*.
10584 16294
10585 16295 Header files renamed: The acapi.h file is now acpixf.h. The
10586 16296 acpiosd.h file is now acpiosxf.h. We are removing references to
10587 16297 the acronym "API" since it is somewhat windowsy. The new name is
10588 16298 "external interface" or xface or xf in the filenames.j
10589 16299
10590 16300
10591 16301 All manifest constants have been forced to upper case (some were
10592 16302 mixed case.) Also, the string "ACPI_" has been prepended to many
10593 16303 (not all) of the constants, typedefs, and structs.
10594 16304
10595 16305 The globals "DebugLevel" and "DebugLayer" have been renamed
10596 16306 "AcpiDbgLevel" and "AcpiDbgLayer" respectively.
10597 16307
10598 16308 All other globals within the subsystem are now prefixed with
10599 16309 "AcpiGbl_" Internal procedures within the subsystem are now
10600 16310 prefixed with "Acpi" (with only a few exceptions). The original
10601 16311 two-letter abbreviation for the subcomponent remains after "Acpi"
10602 16312 - for example, CmCallocate became AcpiCmCallocate.
10603 16313
10604 16314 Added a source code translation/conversion utility. Used to
10605 16315 generate the Linux source code, it can be modified to generate
10606 16316 other types of source as well. Can also be used to cleanup
10607 16317 existing source by removing extraneous spaces and blank lines.
10608 16318 Found in tools/acpisrc/*
10609 16319
10610 16320 OsdUnMapMemory was renamed to OsdUnmapMemory and then
10611 16321 AcpiOsUnmapMemory. (UnMap became Unmap).
10612 16322
10613 16323 A "MaxUnits" parameter has been added to AcpiOsCreateSemaphore.
10614 16324 When set to one, this indicates that the caller wants to use the
10615 16325
10616 16326 semaphore as a mutex, not a counting semaphore. ACPI CA uses
10617 16327 both types. However, implementers of this call may want to use
10618 16328 different OS primitives depending on the type of semaphore
10619 16329 requested. For example, some operating systems provide separate
10620 16330
10621 16331 "mutex" and "semaphore" interfaces - where the mutex interface is
10622 16332 much faster because it doesn't have all the overhead of a full
10623 16333 semaphore implementation.
10624 16334
10625 16335 Fixed a deadlock problem where a method that accesses the PCI
10626 16336 address space can block forever if it is the first access to the
10627 16337 space.
10628 16338
10629 16339 -------------------------------------------
10630 16340 Summary of changes for this label: 06_02_00
10631 16341
10632 16342 Support for environments that cannot handle unaligned data
10633 16343 accesses (e.g. firmware and OS environments devoid of alignment
10634 16344 handler technology namely SAL/EFI and the IA-64 Linux kernel) has
10635 16345 been added (via configurable macros) in these three areas: -
10636 16346 Transfer of data from the raw AML byte stream is done via byte
10637 16347 moves instead of word/dword/qword moves. - External objects are
10638 16348 aligned within the user buffer, including package elements (sub-
10639 16349 objects). - Conversion of name strings to UINT32 Acpi Names is now
10640 16350 done byte-wise.
10641 16351
10642 16352 The Store operator was modified to mimic Microsoft's
10643 16353 implementation when storing to a Buffer Field.
10644 16354
10645 16355 Added a check of the BM_STS bit before entering C3.
10646 16356
10647 16357 The methods subdirectory has been obsoleted and removed. A new
10648 16358 file, cmeval.c subsumes the functionality.
10649 16359
10650 16360 A 16-bit (DOS) version of AcpiExec has been developed. The
10651 16361 makefile is under the acpiexec directory.
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