changes.txt revision 127175
1117521Snjl---------------------------------------- 2127175Snjl11 March 2004. Summary of changes for version 20040311: 3127175Snjl 4127175Snjl1) ACPI CA Core Subsystem: 5127175Snjl 6127175SnjlFixed a problem where errors occurring during the parse phase of 7127175Snjlcontrol method execution did not abort cleanly. For example, 8127175Snjlobjects created and installed in the namespace were not deleted. 9127175SnjlThis caused all subsequent invocations of the method to return 10127175Snjlthe AE_ALREADY_EXISTS exception. 11127175Snjl 12127175SnjlImplemented a mechanism to force a control method to "Serialized" 13127175Snjlexecution if the method attempts to create namespace objects. 14127175Snjl(The root of the AE_ALREADY_EXISTS problem.) 15127175Snjl 16127175SnjlImplemented support for the predefined _OSI "internal" control 17127175Snjlmethod. Initial supported strings are "Linux", "Windows 2000", 18127175Snjl"Windows 2001", and "Windows 2001.1", and can be easily upgraded 19127175Snjlfor new strings as necessary. This feature will allow "other" 20127175Snjloperating systems to execute the fully tested, "Windows" code 21127175Snjlpath through the ASL code 22127175Snjl 23127175SnjlGlobal Lock Support: Now allows multiple acquires and releases 24127175Snjlwith any internal thread. Removed concept of "owning thread" for 25127175Snjlthis special mutex. 26127175Snjl 27127175SnjlFixed two functions that were inappropriately declaring large 28127175Snjlobjects on the CPU stack: PsParseLoop, NsEvaluateRelative. 29127175SnjlReduces the stack usage during method execution considerably. 30127175Snjl 31127175SnjlFixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where 32127175Snjlthe S4Bios_f field was incorrectly defined as UINT32 instead of 33127175SnjlUINT32_BIT. 34127175Snjl 35127175SnjlFixed a problem where AcpiEvGpeDetect would fault if there were 36127175Snjlno GPEs defined on the machine. 37127175Snjl 38127175SnjlImplemented two runtime options: One to force all control method 39127175Snjlexecution to "Serialized" to mimic Windows behavior, another to 40127175Snjldisable _OSI support if it causes problems on a given machine. 41127175Snjl 42127175SnjlCode and Data Size: Current and previous core subsystem library 43127175Snjlsizes are shown below. These are the code and data sizes for the 44127175Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 45127175Snjlthese values do not include any ACPI driver or OSPM code. The 46127175Snjldebug version of the code includes the debug output trace 47127175Snjlmechanism and has a much larger code and data size. Note that 48127175Snjlthese values will vary depending on the efficiency of the 49127175Snjlcompiler and the compiler options used during generation. 50127175Snjl 51127175Snjl Previous Release: 52127175Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 53127175Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 54127175Snjl Current Release: 55127175Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 56127175Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 57127175Snjl 58127175Snjl2) iASL Compiler/Disassembler: 59127175Snjl 60127175SnjlFixed an array size problem for FreeBSD that would cause the 61127175Snjlcompiler to fault. 62127175Snjl 63127175Snjl---------------------------------------- 64126372Snjl20 February 2004. Summary of changes for version 20040220: 65126372Snjl 66126372Snjl1) ACPI CA Core Subsystem: 67126372Snjl 68126372SnjlImplemented execution of _SxD methods for Device objects in the 69126372SnjlGetObjectInfo interface. 70126372Snjl 71126372SnjlFixed calls to _SST method to pass the correct arguments. 72126372Snjl 73126372SnjlAdded a call to _SST on wake to restore to "working" state. 74126372Snjl 75126372SnjlCheck for End-Of-Buffer failure case in the WalkResources 76126372Snjlinterface. 77126372Snjl 78126372SnjlIntegrated fix for 64-bit alignment issue in acglobal.h by moving 79126372Snjltwo structures to the beginning of the file. 80126372Snjl 81126372SnjlAfter wake, clear GPE status register(s) before enabling GPEs. 82126372Snjl 83126372SnjlAfter wake, clear/enable power button. (Perhaps we should 84126372Snjlclear/enable all fixed events upon wake.) 85126372Snjl 86126372SnjlFixed a couple of possible memory leaks in the Namespace manager. 87126372Snjl 88126372SnjlIntegrated latest acnetbsd.h file. 89126372Snjl 90126372Snjl---------------------------------------- 91126372Snjl11 February 2004. Summary of changes for version 20040211: 92126372Snjl 93126372Snjl1) ACPI CA Core Subsystem: 94126372Snjl 95126372SnjlCompleted investigation and implementation of the call-by- 96126372Snjlreference mechanism for control method arguments. 97126372Snjl 98126372SnjlFixed a problem where a store of an object into an indexed 99126372Snjlpackage could fail if the store occurs within a different method 100126372Snjlthan the method that created the package. 101126372Snjl 102126372SnjlFixed a problem where the ToDecimal operator could return 103126372Snjlincorrect results. 104126372Snjl 105126372SnjlFixed a problem where the CopyObject operator could fail on some 106126372Snjlof the more obscure objects (e.g., Reference objects.) 107126372Snjl 108126372SnjlImproved the output of the Debug object to display buffer, 109126372Snjlpackage, and index objects. 110126372Snjl 111126372SnjlFixed a problem where constructs of the form "RefOf (ArgX)" did 112126372Snjlnot return the expected result. 113126372Snjl 114126372SnjlAdded permanent ACPI_REPORT_ERROR macros for all instances of the 115126372SnjlACPI_AML_INTERNAL exception. 116126372Snjl 117126372SnjlIntegrated latest version of acfreebsd.h 118126372Snjl 119126372Snjl---------------------------------------- 120126372Snjl16 January 2004. Summary of changes for version 20040116: 121126372Snjl 122126372SnjlThe purpose of this release is primarily to update the copyright 123126372Snjlyears in each module, thus causing a huge number of diffs. There 124126372Snjlare a few small functional changes, however. 125126372Snjl 126126372Snjl1) ACPI CA Core Subsystem: 127126372Snjl 128126372SnjlImproved error messages when there is a problem finding one or 129126372Snjlmore of the required base ACPI tables 130126372Snjl 131126372SnjlReintroduced the definition of APIC_HEADER in actbl.h 132126372Snjl 133126372SnjlChanged definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h) 134126372Snjl 135126372SnjlRemoved extraneous reference to NewObj in dsmthdat.c 136126372Snjl 137126372Snjl2) iASL compiler 138126372Snjl 139126372SnjlFixed a problem introduced in December that disabled the correct 140126372Snjldisassembly of Resource Templates 141126372Snjl 142126372Snjl 143126372Snjl---------------------------------------- 144126372Snjl03 December 2003. Summary of changes for version 20031203: 145126372Snjl 146126372Snjl1) ACPI CA Core Subsystem: 147126372Snjl 148126372SnjlChanged the initialization of Operation Regions during subsystem 149126372Snjlinit to perform two entire walks of the ACPI namespace; The first 150126372Snjlto initialize the regions themselves, the second to execute the 151126372Snjl_REG methods. This fixed some interdependencies across _REG 152126372Snjlmethods found on some machines. 153126372Snjl 154126372SnjlFixed a problem where a Store(Local0, Local1) could simply update 155126372Snjlthe object reference count, and not create a new copy of the 156126372Snjlobject if the Local1 is uninitialized. 157126372Snjl 158126372SnjlImplemented support for the _SST reserved method during sleep 159126372Snjltransitions. 160126372Snjl 161126372SnjlImplemented support to clear the SLP_TYP and SLP_EN bits when 162126372Snjlwaking up, this is apparently required by some machines. 163126372Snjl 164126372SnjlWhen sleeping, clear the wake status only if SleepState is not 165126372SnjlS5. 166126372Snjl 167126372SnjlFixed a problem in AcpiRsExtendedIrqResource() where an incorrect 168126372Snjlpointer arithmetic advanced a string pointer too far. 169126372Snjl 170126372SnjlFixed a problem in AcpiTbGetTablePtr() where a garbage pointer 171126372Snjlcould be returned if the requested table has not been loaded. 172126372Snjl 173126372SnjlWithin the support for IRQ resources, restructured the handling 174126372Snjlof 175126372Snjlthe active and edge/level bits. 176126372Snjl 177126372SnjlFixed a few problems in AcpiPsxExecute() where memory could be 178126372Snjlleaked under certain error conditions. 179126372Snjl 180126372SnjlImproved error messages for the cases where the ACPI mode could 181126372Snjlnot be entered. 182126372Snjl 183126372SnjlCode and Data Size: Current and previous core subsystem library 184126372Snjlsizes are shown below. These are the code and data sizes for the 185126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 186126372Snjlthese values do not include any ACPI driver or OSPM code. The 187126372Snjldebug version of the code includes the debug output trace 188126372Snjlmechanism and has a much larger code and data size. Note that 189126372Snjlthese values will vary depending on the efficiency of the 190126372Snjlcompiler 191126372Snjland the compiler options used during generation. 192126372Snjl 193126372Snjl Previous Release (20031029): 194126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 195126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 196126372Snjl Current Release: 197126372Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 198126372Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 199126372Snjl 200126372Snjl2) iASL Compiler/Disassembler: 201126372Snjl 202126372SnjlImplemented a fix for the iASL disassembler where a bad index was 203126372Snjlgenerated. This was most noticeable on 64-bit platforms 204126372Snjl 205126372Snjl 206126372Snjl---------------------------------------- 207126372Snjl29 October 2003. Summary of changes for version 20031029: 208126372Snjl 209126372Snjl1) ACPI CA Core Subsystem: 210126372Snjl 211126372SnjlFixed a problem where a level-triggered GPE with an associated 212126372Snjl_Lxx control method was incorrectly cleared twice. 213126372Snjl 214126372SnjlFixed a problem with the Field support code where an access can 215126372Snjloccur beyond the end-of-region if the field is non-aligned but 216126372Snjlextends to the very end of the parent region (resulted in an 217126372SnjlAE_AML_REGION_LIMIT exception.) 218126372Snjl 219126372SnjlFixed a problem with ACPI Fixed Events where an RT Clock handler 220126372Snjlwould not get invoked on an RTC event. The RTC event bitmasks 221126372Snjlfor 222126372Snjlthe PM1 registers were not being initialized properly. 223126372Snjl 224126372SnjlImplemented support for executing _STA and _INI methods for 225126372SnjlProcessor objects. Although this is currently not part of the 226126372SnjlACPI specification, there is existing ASL code that depends on 227126372Snjlthe 228126372Snjlinit-time execution of these methods. 229126372Snjl 230126372SnjlImplemented and deployed a GetDescriptorName function to decode 231126372Snjlthe various types of internal descriptors. Guards against null 232126372Snjldescriptors during debug output also. 233126372Snjl 234126372SnjlImplemented and deployed a GetNodeName function to extract the 4- 235126372Snjlcharacter namespace node name. This function simplifies the 236126372Snjldebug 237126372Snjland error output, as well as guarding against null pointers 238126372Snjlduring 239126372Snjloutput. 240126372Snjl 241126372SnjlImplemented and deployed the ACPI_FORMAT_UINT64 helper macro to 242126372Snjlsimplify the debug and error output of 64-bit integers. This 243126372Snjlmacro replaces the HIDWORD and LODWORD macros for dumping these 244126372Snjlintegers. 245126372Snjl 246126372SnjlUpdated the implementation of the Stall() operator to only call 247126372SnjlAcpiOsStall(), and also return an error if the operand is larger 248126372Snjlthan 255. This preserves the required behavior of not 249126372Snjlrelinquishing the processor, as would happen if AcpiOsSleep() was 250126372Snjlcalled for "long stalls". 251126372Snjl 252126372SnjlConstructs of the form "Store(LocalX,LocalX)" where LocalX is not 253126372Snjlinitialized are now treated as NOOPs. 254126372Snjl 255126372SnjlCleaned up a handful of warnings during 64-bit generation. 256126372Snjl 257126372SnjlFixed a reported error where and incorrect GPE number was passed 258126372Snjlto the GPE dispatch handler. This value is only used for error 259126372Snjloutput, however. Used this opportunity to clean up and 260126372Snjlstreamline 261126372Snjlthe GPE dispatch code. 262126372Snjl 263126372SnjlCode and Data Size: Current and previous core subsystem library 264126372Snjlsizes are shown below. These are the code and data sizes for the 265126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 266126372Snjlthese values do not include any ACPI driver or OSPM code. The 267126372Snjldebug version of the code includes the debug output trace 268126372Snjlmechanism and has a much larger code and data size. Note that 269126372Snjlthese values will vary depending on the efficiency of the 270126372Snjlcompiler 271126372Snjland the compiler options used during generation. 272126372Snjl 273126372Snjl Previous Release (20031002): 274126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 275126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 276126372Snjl Current Release: 277126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 278126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 279126372Snjl 280126372Snjl 281126372Snjl2) iASL Compiler/Disassembler: 282126372Snjl 283126372SnjlUpdated the iASL compiler to return an error if the operand to 284126372Snjlthe 285126372SnjlStall() operator is larger than 255. 286126372Snjl 287126372Snjl 288126372Snjl---------------------------------------- 289126372Snjl02 October 2003. Summary of changes for version 20031002: 290126372Snjl 291126372Snjl 292126372Snjl1) ACPI CA Core Subsystem: 293126372Snjl 294126372SnjlFixed a problem with Index Fields where the index was not 295126372Snjlincremented for fields that require multiple writes to the 296126372Snjlindex/data registers (Fields that are wider than the data 297126372Snjlregister.) 298126372Snjl 299126372SnjlFixed a problem with all Field objects where a write could go 300126372Snjlbeyond the end-of-field if the field was larger than the access 301126372Snjlgranularity and therefore required multiple writes to complete 302126372Snjlthe 303126372Snjlrequest. An extra write beyond the end of the field could happen 304126372Snjlinadvertently. 305126372Snjl 306126372SnjlFixed a problem with Index Fields where a BUFFER_OVERFLOW error 307126372Snjlwould incorrectly be returned if the width of the Data Register 308126372Snjlwas larger than the specified field access width. 309126372Snjl 310126372SnjlCompleted fixes for LoadTable() and Unload() and verified their 311126372Snjloperation. Implemented full support for the "DdbHandle" object 312126372Snjlthroughout the ACPI CA subsystem. 313126372Snjl 314126372SnjlImplemented full support for the MADT and ECDT tables in the ACPI 315126372SnjlCA header files. Even though these tables are not directly 316126372Snjlconsumed by ACPI CA, the header definitions are useful for ACPI 317126372Snjldevice drivers. 318126372Snjl 319126372SnjlIntegrated resource descriptor fixes posted to the Linux ACPI 320126372Snjllist. This included checks for minimum descriptor length, and 321126372Snjlsupport for trailing NULL strings within descriptors that have 322126372Snjloptional string elements. 323126372Snjl 324126372SnjlCode and Data Size: Current and previous core subsystem library 325126372Snjlsizes are shown below. These are the code and data sizes for the 326126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 327126372Snjlthese values do not include any ACPI driver or OSPM code. The 328126372Snjldebug version of the code includes the debug output trace 329126372Snjlmechanism and has a much larger code and data size. Note that 330126372Snjlthese values will vary depending on the efficiency of the 331126372Snjlcompiler 332126372Snjland the compiler options used during generation. 333126372Snjl 334126372Snjl Previous Release (20030918): 335126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 336126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 337126372Snjl Current Release: 338126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 339126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 340126372Snjl 341126372Snjl 342126372Snjl2) iASL Compiler: 343126372Snjl 344126372SnjlImplemented detection of non-ASCII characters within the input 345126372Snjlsource ASL file. This catches attempts to compile binary (AML) 346126372Snjlfiles early in the compile, with an informative error message. 347126372Snjl 348126372SnjlFixed a problem where the disassembler would fault if the output 349126372Snjlfilename could not be generated or if the output file could not 350126372Snjlbe 351126372Snjlopened. 352126372Snjl 353126372Snjl---------------------------------------- 354126372Snjl18 September 2003. Summary of changes for version 20030918: 355126372Snjl 356126372Snjl 357126372Snjl1) ACPI CA Core Subsystem: 358126372Snjl 359126372SnjlFound and fixed a longstanding problem with the late execution of 360126372Snjlthe various deferred AML opcodes (such as Operation Regions, 361126372SnjlBuffer Fields, Buffers, and Packages). If the name string 362126372Snjlspecified for the name of the new object placed the object in a 363126372Snjlscope other than the current scope, the initialization/execution 364126372Snjlof the opcode failed. The solution to this problem was to 365126372Snjlimplement a mechanism where the late execution of such opcodes 366126372Snjldoes not attempt to lookup/create the name a second time in an 367126372Snjlincorrect scope. This fixes the "region size computed 368126372Snjlincorrectly" problem. 369126372Snjl 370126372SnjlFixed a call to AcpiHwRegisterWrite in hwregs.c that was causing 371126372Snjla 372126372SnjlGlobal Lock AE_BAD_PARAMETER error. 373126372Snjl 374126372SnjlFixed several 64-bit issues with prototypes, casting and data 375126372Snjltypes. 376126372Snjl 377126372SnjlRemoved duplicate prototype from acdisasm.h 378126372Snjl 379126372SnjlFixed an issue involving EC Operation Region Detach (Shaohua Li) 380126372Snjl 381126372SnjlCode and Data Size: Current and previous core subsystem library 382126372Snjlsizes are shown below. These are the code and data sizes for the 383126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 384126372Snjlthese values do not include any ACPI driver or OSPM code. The 385126372Snjldebug version of the code includes the debug output trace 386126372Snjlmechanism and has a much larger code and data size. Note that 387126372Snjlthese values will vary depending on the efficiency of the 388126372Snjlcompiler 389126372Snjland the compiler options used during generation. 390126372Snjl 391126372Snjl Previous Release: 392126372Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 393126372Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 394126372Snjl Current Release: 395126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 396126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 397126372Snjl 398126372Snjl 399126372Snjl2) Linux: 400126372Snjl 401126372SnjlFixed the AcpiOsSleep implementation in osunixxf.c to pass the 402126372Snjlcorrect sleep time in seconds. 403126372Snjl 404126372Snjl---------------------------------------- 405126372Snjl14 July 2003. Summary of changes for version 20030619: 406126372Snjl 407126372Snjl1) ACPI CA Core Subsystem: 408126372Snjl 409126372SnjlParse SSDTs in order discovered, as opposed to reverse order 410126372Snjl(Hrvoje Habjanic) 411126372Snjl 412126372SnjlFixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas 413126372SnjlKlausner, 414126372Snjl Nate Lawson) 415126372Snjl 416126372Snjl 417126372Snjl2) Linux: 418126372Snjl 419126372SnjlDynamically allocate SDT list (suggested by Andi Kleen) 420126372Snjl 421126372Snjlproc function return value cleanups (Andi Kleen) 422126372Snjl 423126372SnjlCorrectly handle NMI watchdog during long stalls (Andrew Morton) 424126372Snjl 425126372SnjlMake it so acpismp=force works (reported by Andrew Morton) 426126372Snjl 427126372Snjl 428126372Snjl---------------------------------------- 429117521Snjl19 June 2003. Summary of changes for version 20030619: 430117521Snjl 431117521Snjl1) ACPI CA Core Subsystem: 432117521Snjl 433117521SnjlFix To/FromBCD, eliminating the need for an arch-specific 434117521Snjl#define. 435117521Snjl 436117521SnjlDo not acquire a semaphore in the S5 shutdown path. 437117521Snjl 438117521SnjlFix ex_digits_needed for 0. (Takayoshi Kochi) 439117521Snjl 440117521SnjlFix sleep/stall code reversal. (Andi Kleen) 441117521Snjl 442117521SnjlRevert a change having to do with control method calling 443117521Snjlsemantics. 444117521Snjl 445117521Snjl2) Linux: 446117521Snjl 447117521Snjlacpiphp update (Takayoshi Kochi) 448117521Snjl 449117521SnjlExport acpi_disabled for sonypi (Stelian Pop) 450117521Snjl 451117521SnjlMention acpismp=force in config help 452117521Snjl 453117521SnjlRe-add acpitable.c and acpismp=force. This improves backwards 454117521Snjlcompatibility and also cleans up the code to a significant 455117521Snjldegree. 456117521Snjl 457117521SnjlAdd ASUS Value-add driver (Karol Kozimor and Julien Lerouge) 458117521Snjl 459117521Snjl---------------------------------------- 460117521Snjl22 May 2003. Summary of changes for version 20030522: 461117521Snjl 462117521Snjl1) ACPI CA Core Subsystem: 463117521Snjl 464117521SnjlFound and fixed a reported problem where an AE_NOT_FOUND error 465117521Snjloccurred occasionally during _BST evaluation. This turned out to 466117521Snjlbe an Owner ID allocation issue where a called method did not get 467117521Snjla new ID assigned to it. Eventually, (after 64k calls), the 468126372SnjlOwner 469126372SnjlID UINT16 would wraparound so that the ID would be the same as 470126372Snjlthe 471126372Snjlcaller's and the called method would delete the caller's 472117521Snjlnamespace. 473117521Snjl 474117521SnjlImplemented extended error reporting for control methods that are 475117521Snjlaborted due to a run-time exception. Output includes the exact 476117521SnjlAML instruction that caused the method abort, a dump of the 477126372Snjlmethod 478126372Snjllocals and arguments at the time of the abort, and a trace of all 479126372Snjlnested control method calls. 480117521Snjl 481117521SnjlModified the interpreter to allow the creation of buffers of zero 482117521Snjllength from the AML code. Implemented new code to ensure that no 483117521Snjlattempt is made to actually allocate a memory buffer (of length 484117521Snjlzero) - instead, a simple buffer object with a NULL buffer 485126372Snjlpointer 486126372Snjland length zero is created. A warning is no longer issued when 487126372Snjlthe AML attempts to create a zero-length buffer. 488117521Snjl 489117521SnjlImplemented a workaround for the "leading asterisk issue" in 490117521Snjl_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading 491117521Snjlasterisk is automatically removed if present in any HID, UID, or 492117521SnjlCID strings. The iASL compiler will still flag this asterisk as 493117521Snjlan error, however. 494117521Snjl 495117521SnjlImplemented full support for _CID methods that return a package 496126372Snjlof 497126372Snjlmultiple CIDs (Compatible IDs). The AcpiGetObjectInfo() 498126372Snjlinterface 499126372Snjlnow additionally returns a device _CID list if present. This 500126372Snjlrequired a change to the external interface in order to pass an 501126372SnjlACPI_BUFFER object as a parameter since the _CID list is of 502117521Snjlvariable length. 503117521Snjl 504117521SnjlFixed a problem with the new AE_SAME_HANDLER exception where 505117521Snjlhandler initialization code did not know about this exception. 506117521Snjl 507117521SnjlCode and Data Size: Current and previous core subsystem library 508117521Snjlsizes are shown below. These are the code and data sizes for the 509117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 510117521Snjlthese values do not include any ACPI driver or OSPM code. The 511117521Snjldebug version of the code includes the debug output trace 512117521Snjlmechanism and has a much larger code and data size. Note that 513117521Snjlthese values will vary depending on the efficiency of the 514126372Snjlcompiler 515126372Snjland the compiler options used during generation. 516117521Snjl 517117521Snjl Previous Release (20030509): 518117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 519117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 520117521Snjl Current Release: 521117521Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 522117521Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 523117521Snjl 524117521Snjl 525117521Snjl2) Linux: 526117521Snjl 527117521SnjlFixed a bug in which we would reinitialize the ACPI interrupt 528117521Snjlafter it was already working, thus disabling all ACPI and the 529126372SnjlIRQs 530126372Snjlfor any other device sharing the interrupt. (Thanks to Stian 531117521SnjlJordet) 532117521Snjl 533117521SnjlToshiba driver update (John Belmonte) 534117521Snjl 535117521SnjlReturn only 0 or 1 for our interrupt handler status (Andrew 536117521SnjlMorton) 537117521Snjl 538117521Snjl 539117521Snjl3) iASL Compiler: 540117521Snjl 541117521SnjlFixed a reported problem where multiple (nested) ElseIf() 542117521Snjlstatements were not handled correctly by the compiler, resulting 543117521Snjlin incorrect warnings and incorrect AML code. This was a problem 544117521Snjlin both the ASL parser and the code generator. 545117521Snjl 546117521Snjl 547117521Snjl4) Documentation: 548117521Snjl 549117521SnjlAdded changes to existing interfaces, new exception codes, and 550126372Snjlnew 551126372Snjltext concerning reference count object management versus garbage 552126372Snjlcollection. 553117521Snjl 554117521Snjl---------------------------------------- 555117521Snjl09 May 2003. Summary of changes for version 20030509. 556117521Snjl 557117521Snjl 558117521Snjl1) ACPI CA Core Subsystem: 559117521Snjl 560117521SnjlChanged the subsystem initialization sequence to hold off 561117521Snjlinstallation of address space handlers until the hardware has 562126372Snjlbeen 563126372Snjlinitialized and the system has entered ACPI mode. This is 564126372Snjlbecause 565126372Snjlthe installation of space handlers can cause _REG methods to be 566126372Snjlrun. Previously, the _REG methods could potentially be run 567126372Snjlbefore 568126372SnjlACPI mode was enabled. 569117521Snjl 570117521SnjlFixed some memory leak issues related to address space handler 571126372Snjland 572126372Snjlnotify handler installation. There were some problems with the 573126372Snjlreference count mechanism caused by the fact that the handler 574117521Snjlobjects are shared across several namespace objects. 575117521Snjl 576117521SnjlFixed a reported problem where reference counts within the 577117521Snjlnamespace were not properly updated when named objects created by 578117521Snjlmethod execution were deleted. 579117521Snjl 580117521SnjlFixed a reported problem where multiple SSDTs caused a deletion 581117521Snjlissue during subsystem termination. Restructured the table data 582117521Snjlstructures to simplify the linked lists and the related code. 583117521Snjl 584117521SnjlFixed a problem where the table ID associated with secondary 585117521Snjltables (SSDTs) was not being propagated into the namespace 586126372Snjlobjects 587126372Snjlcreated by those tables. This would only present a problem for 588126372Snjltables that are unloaded at run-time, however. 589117521Snjl 590117521SnjlUpdated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE 591117521Snjltype as the length parameter (instead of UINT32). 592117521Snjl 593117521SnjlSolved a long-standing problem where an ALREADY_EXISTS error 594117521Snjlappears on various systems. This problem could happen when there 595117521Snjlare multiple PCI_Config operation regions under a single PCI root 596117521Snjlbus. This doesn't happen very frequently, but there are some 597117521Snjlsystems that do this in the ASL. 598117521Snjl 599117521SnjlFixed a reported problem where the internal DeleteNode function 600117521Snjlwas incorrectly handling the case where a namespace node was the 601117521Snjlfirst in the parent's child list, and had additional peers (not 602117521Snjlthe only child, but first in the list of children.) 603117521Snjl 604117521SnjlCode and Data Size: Current core subsystem library sizes are 605126372Snjlshown 606126372Snjlbelow. These are the code and data sizes for the acpica.lib 607126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 608126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 609126372Snjlversion of the code includes the debug output trace mechanism and 610126372Snjlhas a much larger code and data size. Note that these values 611126372Snjlwill 612126372Snjlvary depending on the efficiency of the compiler and the compiler 613126372Snjloptions used during generation. 614117521Snjl 615117521Snjl Previous Release 616117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 617117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 618117521Snjl Current Release: 619117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 620117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 621117521Snjl 622117521Snjl 623117521Snjl2) Linux: 624117521Snjl 625117521SnjlAllow ":" in OS override string (Ducrot Bruno) 626117521Snjl 627117521SnjlKobject fix (Greg KH) 628117521Snjl 629117521Snjl 630117521Snjl3 iASL Compiler/Disassembler: 631117521Snjl 632117521SnjlFixed a problem in the generation of the C source code files (AML 633117521Snjlis emitted in C source statements for BIOS inclusion) where the 634117521SnjlAscii dump that appears within a C comment at the end of each 635126372Snjlline 636126372Snjlcould cause a compile time error if the AML sequence happens to 637126372Snjlhave an open comment or close comment sequence embedded. 638117521Snjl 639117521Snjl 640117521Snjl---------------------------------------- 641117521Snjl24 April 2003. Summary of changes for version 20030424. 642117521Snjl 643117521Snjl 644117521Snjl1) ACPI CA Core Subsystem: 645117521Snjl 646117521SnjlSupport for big-endian systems has been implemented. Most of the 647117521Snjlsupport has been invisibly added behind big-endian versions of 648126372Snjlthe 649126372SnjlACPI_MOVE_* macros. 650117521Snjl 651117521SnjlFixed a problem in AcpiHwDisableGpeBlock() and 652117521SnjlAcpiHwClearGpeBlock() where an incorrect offset was passed to the 653117521Snjllow level hardware write routine. The offset parameter was 654117521Snjlactually eliminated from the low level read/write routines 655126372Snjlbecause 656126372Snjlthey had become obsolete. 657117521Snjl 658117521SnjlFixed a problem where a handler object was deleted twice during 659117521Snjlthe removal of a fixed event handler. 660117521Snjl 661117521Snjl 662117521Snjl2) Linux: 663117521Snjl 664117521SnjlA fix for SMP systems with link devices was contributed by 665117521SnjlCompaq's Dan Zink. 666117521Snjl 667117521Snjl(2.5) Return whether we handled the interrupt in our IRQ handler. 668117521Snjl(Linux ISRs no longer return void, so we can propagate the 669126372Snjlhandler 670126372Snjlreturn value from the ACPI CA core back to the OS.) 671117521Snjl 672117521Snjl 673117521Snjl3) Documentation: 674117521Snjl 675117521SnjlThe ACPI CA Programmer Reference has been updated to reflect new 676117521Snjlinterfaces and changes to existing interfaces. 677117521Snjl 678117521Snjl---------------------------------------- 679117521Snjl28 March 2003. Summary of changes for version 20030328. 680117521Snjl 681117521Snjl1) ACPI CA Core Subsystem: 682117521Snjl 683117521SnjlThe GPE Block Device support has been completed. New interfaces 684117521Snjlare AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event 685117521Snjlinterfaces (enable, disable, clear, getstatus) have been split 686117521Snjlinto separate interfaces for Fixed Events and General Purpose 687117521SnjlEvents (GPEs) in order to support GPE Block Devices properly. 688117521Snjl 689117521SnjlFixed a problem where the error message "Failed to acquire 690117521Snjlsemaphore" would appear during operations on the embedded 691117521Snjlcontroller (EC). 692117521Snjl 693117521SnjlCode and Data Size: Current core subsystem library sizes are 694126372Snjlshown 695126372Snjlbelow. These are the code and data sizes for the acpica.lib 696126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 697126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 698126372Snjlversion of the code includes the debug output trace mechanism and 699126372Snjlhas a much larger code and data size. Note that these values 700126372Snjlwill 701126372Snjlvary depending on the efficiency of the compiler and the compiler 702126372Snjloptions used during generation. 703117521Snjl 704117521Snjl Previous Release 705117521Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 706117521Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 707117521Snjl Current Release: 708117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 709117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 710117521Snjl 711117521Snjl 712117521Snjl---------------------------------------- 713114237Snjl28 February 2003. Summary of changes for version 20030228. 714114237Snjl 715114237Snjl 716114237Snjl1) ACPI CA Core Subsystem: 717114237Snjl 718114237SnjlThe GPE handling and dispatch code has been completely overhauled 719114237Snjlin preparation for support of GPE Block Devices (ID ACPI0006). 720114237SnjlThis affects internal data structures and code only; there should 721114237Snjlbe no differences visible externally. One new file has been 722114237Snjladded, evgpeblk.c 723114237Snjl 724114237SnjlThe FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only 725114237Snjlfields that are used to determine the GPE block lengths. The 726114237SnjlREGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address 727114237Snjlstructures are ignored. This is per the ACPI specification but 728126372Snjlit 729126372Snjlisn't very clear. The full 256 Block 0/1 GPEs are now supported 730126372Snjl(the use of REGISTER_BIT_WIDTH limited the number of GPEs to 731126372Snjl128). 732114237Snjl 733114237SnjlIn the SCI interrupt handler, removed the read of the PM1_CONTROL 734114237Snjlregister to look at the SCI_EN bit. On some machines, this read 735114237Snjlcauses an SMI event and greatly slows down SCI events. (This may 736114237Snjlin fact be the cause of slow battery status response on some 737114237Snjlsystems.) 738114237Snjl 739114237SnjlFixed a problem where a store of a NULL string to a package 740126372Snjlobject 741126372Snjlcould cause the premature deletion of the object. This was seen 742126372Snjlduring execution of the battery _BIF method on some systems, 743126372Snjlresulting in no battery data being returned. 744114237Snjl 745114237SnjlAdded AcpiWalkResources interface to simplify parsing of resource 746114237Snjllists. 747114237Snjl 748114237SnjlCode and Data Size: Current core subsystem library sizes are 749126372Snjlshown 750126372Snjlbelow. These are the code and data sizes for the acpica.lib 751126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 752126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 753126372Snjlversion of the code includes the debug output trace mechanism and 754126372Snjlhas a much larger code and data size. Note that these values 755126372Snjlwill 756126372Snjlvary depending on the efficiency of the compiler and the compiler 757126372Snjloptions used during generation. 758114237Snjl 759114237Snjl Previous Release 760114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 761114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 762114237Snjl Current Release: 763114237Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 764114237Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 765114237Snjl 766114237Snjl 767114237Snjl2) Linux 768114237Snjl 769114237SnjlS3 fixes (Ole Rohne) 770114237Snjl 771114237SnjlUpdate ACPI PHP driver with to use new acpi_walk_resource API 772114237Snjl(Bjorn Helgaas) 773114237Snjl 774114237SnjlAdd S4BIOS support (Pavel Machek) 775114237Snjl 776114237SnjlMap in entire table before performing checksum (John Stultz) 777114237Snjl 778114237SnjlExpand the mem= cmdline to allow the specification of reserved 779126372Snjland 780126372SnjlACPI DATA blocks (Pavel Machek) 781114237Snjl 782114237SnjlNever use ACPI on VISWS 783114237Snjl 784114237SnjlFix derive_pci_id (Ducrot Bruno, Alvaro Lopez) 785114237Snjl 786114237SnjlRevert a change that allowed P_BLK lengths to be 4 or 5. This is 787114237Snjlcausing us to think that some systems support C2 when they really 788114237Snjldon't. 789114237Snjl 790114237SnjlDo not count processor objects for non-present CPUs (Thanks to 791114237SnjlDominik Brodowski) 792114237Snjl 793114237Snjl 794114237Snjl3) iASL Compiler: 795114237Snjl 796114237SnjlFixed a problem where ASL include files could not be found and 797114237Snjlopened. 798114237Snjl 799114237SnjlAdded support for the _PDC reserved name. 800114237Snjl 801114237Snjl 802117521Snjl---------------------------------------- 803114237Snjl22 January 2003. Summary of changes for version 20030122. 804114237Snjl 805114237Snjl 806114237Snjl1) ACPI CA Core Subsystem: 807114237Snjl 808114237SnjlAdded a check for constructs of the form: Store (Local0, Local0) 809114237Snjlwhere Local0 is not initialized. Apparently, some BIOS 810114237Snjlprogrammers believe that this is a NOOP. Since this store 811126372Snjldoesn't 812126372Snjldo anything anyway, the new prototype behavior will ignore this 813126372Snjlerror. This is a case where we can relax the strict checking in 814126372Snjlthe interpreter in the name of compatibility. 815114237Snjl 816114237Snjl 817114237Snjl2) Linux 818114237Snjl 819114237SnjlThe AcpiSrc Source Conversion Utility has been released with the 820114237SnjlLinux package for the first time. This is the utility that is 821114237Snjlused to convert the ACPI CA base source code to the Linux 822114237Snjlversion. 823114237Snjl 824114237Snjl(Both) Handle P_BLK lengths shorter than 6 more gracefully 825114237Snjl 826114237Snjl(Both) Move more headers to include/acpi, and delete an unused 827114237Snjlheader. 828114237Snjl 829114237Snjl(Both) Move drivers/acpi/include directory to include/acpi 830114237Snjl 831114237Snjl(Both) Boot functions don't use cmdline, so don't pass it around 832114237Snjl 833114237Snjl(Both) Remove include of unused header (Adrian Bunk) 834114237Snjl 835114237Snjl(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since 836114237Snjlthe 837114237Snjlformer now also includes the latter, acpiphp.h only needs the 838126372Snjlone, 839126372Snjlnow. 840114237Snjl 841114237Snjl(2.5) Make it possible to select method of bios restoring after 842114237SnjlS3 843114237Snjlresume. [=> no more ugly ifdefs] (Pavel Machek) 844114237Snjl 845114237Snjl(2.5) Make proc write interfaces work (Pavel Machek) 846114237Snjl 847114237Snjl(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski) 848114237Snjl 849114237Snjl(2.5) Break out ACPI Perf code into its own module, under cpufreq 850114237Snjl(Dominik Brodowski) 851114237Snjl 852114237Snjl(2.4) S4BIOS support (Ducrot Bruno) 853114237Snjl 854114237Snjl(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio 855114237SnjlVisinoni) 856114237Snjl 857114237Snjl 858114237Snjl3) iASL Compiler: 859114237Snjl 860114237SnjlAdded support to disassemble SSDT and PSDTs. 861114237Snjl 862114237SnjlImplemented support to obtain SSDTs from the Windows registry if 863114237Snjlavailable. 864114237Snjl 865114237Snjl 866102550Siwasaki---------------------------------------- 867114237Snjl09 January 2003. Summary of changes for version 20030109. 868114237Snjl 869114237Snjl1) ACPI CA Core Subsystem: 870114237Snjl 871114237SnjlChanged the behavior of the internal Buffer-to-String conversion 872114237Snjlfunction. The current ACPI specification states that the 873126372Snjlcontents 874126372Snjlof the buffer are "converted to a string of two-character 875126372Snjlhexadecimal numbers, each separated by a space". Unfortunately, 876126372Snjlthis definition is not backwards compatible with existing ACPI 877126372Snjl1.0 878126372Snjlimplementations (although the behavior was not defined in the 879126372SnjlACPI 880126372Snjl1.0 specification). The new behavior simply copies data from the 881126372Snjlbuffer to the string until a null character is found or the end 882126372Snjlof 883126372Snjlthe buffer is reached. The new String object is always null 884126372Snjlterminated. This problem was seen during the generation of _BIF 885126372Snjlbattery data where incorrect strings were returned for battery 886126372Snjltype, etc. This will also require an errata to the ACPI 887126372Snjlspecification. 888114237Snjl 889114237SnjlRenamed all instances of NATIVE_UINT and NATIVE_INT to 890114237SnjlACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively. 891114237Snjl 892114237SnjlCopyright in all module headers (both Linux and non-Linux) has be 893114237Snjlupdated to 2003. 894114237Snjl 895114237SnjlCode and Data Size: Current core subsystem library sizes are 896126372Snjlshown 897126372Snjlbelow. These are the code and data sizes for the acpica.lib 898126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 899126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 900126372Snjlversion of the code includes the debug output trace mechanism and 901126372Snjlhas a much larger code and data size. Note that these values 902126372Snjlwill 903126372Snjlvary depending on the efficiency of the compiler and the compiler 904126372Snjloptions used during generation. 905114237Snjl 906114237Snjl Previous Release 907114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 908114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 909114237Snjl Current Release: 910114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 911114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 912114237Snjl 913114237Snjl 914114237Snjl2) Linux 915114237Snjl 916114237SnjlFixed an oops on module insertion/removal (Matthew Tippett) 917114237Snjl 918114237Snjl(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante) 919114237Snjl 920114237Snjl(2.5) Replace pr_debug (Randy Dunlap) 921114237Snjl 922114237Snjl(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski) 923114237Snjl 924114237Snjl(Both) Eliminate spawning of thread from timer callback, in favor 925114237Snjlof schedule_work() 926114237Snjl 927114237Snjl(Both) Show Lid status in /proc (Zdenek OGAR Skalak) 928114237Snjl 929114237Snjl(Both) Added define for Fixed Function HW region (Matthew Wilcox) 930114237Snjl 931114237Snjl(Both) Add missing statics to button.c (Pavel Machek) 932114237Snjl 933114237SnjlSeveral changes have been made to the source code translation 934114237Snjlutility that generates the Linux Code in order to make the code 935114237Snjlmore "Linux-like": 936114237Snjl 937114237SnjlAll typedefs on structs and unions have been removed in keeping 938114237Snjlwith the Linux coding style. 939114237Snjl 940114237SnjlRemoved the non-Linux SourceSafe module revision number from each 941114237Snjlmodule header. 942114237Snjl 943114237SnjlCompleted major overhaul of symbols to be lowercased for linux. 944114237SnjlDoubled the number of symbols that are lowercased. 945114237Snjl 946114237SnjlFixed a problem where identifiers within procedure headers and 947114237Snjlwithin quotes were not fully lower cased (they were left with a 948114237Snjlstarting capital.) 949114237Snjl 950114237SnjlSome C macros whose only purpose is to allow the generation of 16- 951114237Snjlbit code are now completely removed in the Linux code, increasing 952114237Snjlreadability and maintainability. 953114237Snjl 954114237Snjl---------------------------------------- 955114237Snjl 956114237Snjl12 December 2002. Summary of changes for version 20021212. 957114237Snjl 958114237Snjl 959114237Snjl1) ACPI CA Core Subsystem: 960114237Snjl 961114237SnjlFixed a problem where the creation of a zero-length AML Buffer 962114237Snjlwould cause a fault. 963114237Snjl 964114237SnjlFixed a problem where a Buffer object that pointed to a static 965126372SnjlAML 966126372Snjlbuffer (in an ACPI table) could inadvertently be deleted, causing 967126372Snjlmemory corruption. 968114237Snjl 969114237SnjlFixed a problem where a user buffer (passed in to the external 970114237SnjlACPI CA interfaces) could be overwritten if the buffer was too 971114237Snjlsmall to complete the operation, causing memory corruption. 972114237Snjl 973114237SnjlFixed a problem in the Buffer-to-String conversion code where a 974114237Snjlstring of length one was always returned, regardless of the size 975114237Snjlof the input Buffer object. 976114237Snjl 977114237SnjlRemoved the NATIVE_CHAR data type across the entire source due to 978114237Snjllack of need and lack of consistent use. 979114237Snjl 980114237SnjlCode and Data Size: Current core subsystem library sizes are 981126372Snjlshown 982126372Snjlbelow. These are the code and data sizes for the acpica.lib 983126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 984126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 985126372Snjlversion of the code includes the debug output trace mechanism and 986126372Snjlhas a much larger code and data size. Note that these values 987126372Snjlwill 988126372Snjlvary depending on the efficiency of the compiler and the compiler 989126372Snjloptions used during generation. 990114237Snjl 991114237Snjl Previous Release 992114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 993114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 994114237Snjl Current Release: 995114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 996114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 997114237Snjl 998114237Snjl 999114237Snjl---------------------------------------- 1000114237Snjl05 December 2002. Summary of changes for version 20021205. 1001114237Snjl 1002114237Snjl1) ACPI CA Core Subsystem: 1003114237Snjl 1004114237SnjlFixed a problem where a store to a String or Buffer object could 1005114237Snjlcause corruption of the DSDT if the object type being stored was 1006114237Snjlthe same as the target object type and the length of the object 1007114237Snjlbeing stored was equal to or smaller than the original (existing) 1008114237Snjltarget object. This was seen to cause corruption of battery _BIF 1009114237Snjlbuffers if the _BIF method modified the buffer on the fly. 1010114237Snjl 1011114237SnjlFixed a problem where an internal error was generated if a 1012126372Snjlcontrol 1013126372Snjlmethod invocation was used in an OperationRegion, Buffer, or 1014126372SnjlPackage declaration. This was caused by the deferred parsing of 1015126372Snjlthe control method and thus the deferred creation of the internal 1016126372Snjlmethod object. The solution to this problem was to create the 1017126372Snjlinternal method object at the moment the method is encountered in 1018126372Snjlthe first pass - so that subsequent references to the method will 1019126372Snjlable to obtain the required parameter count and thus properly 1020126372Snjlparse the method invocation. This problem presented itself as an 1021126372SnjlAE_AML_INTERNAL during the pass 1 parse phase during table load. 1022114237Snjl 1023114237SnjlFixed a problem where the internal String object copy routine did 1024114237Snjlnot always allocate sufficient memory for the target String 1025126372Snjlobject 1026126372Snjland caused memory corruption. This problem was seen to cause 1027126372Snjl"Allocation already present in list!" errors as memory allocation 1028126372Snjlbecame corrupted. 1029114237Snjl 1030114237SnjlImplemented a new function for the evaluation of namespace 1031126372Snjlobjects 1032126372Snjlthat allows the specification of the allowable return object 1033126372Snjltypes. This simplifies a lot of code that checks for a return 1034126372Snjlobject of one or more specific objects returned from the 1035114237Snjlevaluation (such as _STA, etc.) This may become and external 1036114237Snjlfunction if it would be useful to ACPI-related drivers. 1037114237Snjl 1038114237SnjlCompleted another round of prefixing #defines with "ACPI_" for 1039114237Snjlclarity. 1040114237Snjl 1041114237SnjlCompleted additional code restructuring to allow more modular 1042114237Snjllinking for iASL compiler and AcpiExec. Several files were split 1043114237Snjlcreating new files. New files: nsparse.c dsinit.c evgpe.c 1044114237Snjl 1045114237SnjlImplemented an abort mechanism to terminate an executing control 1046114237Snjlmethod via the AML debugger. This feature is useful for 1047126372Snjldebugging 1048126372Snjlcontrol methods that depend (wait) for specific hardware 1049126372Snjlresponses. 1050114237Snjl 1051114237SnjlCode and Data Size: Current core subsystem library sizes are 1052126372Snjlshown 1053126372Snjlbelow. These are the code and data sizes for the acpica.lib 1054126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1055126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1056126372Snjlversion of the code includes the debug output trace mechanism and 1057126372Snjlhas a much larger code and data size. Note that these values 1058126372Snjlwill 1059126372Snjlvary depending on the efficiency of the compiler and the compiler 1060126372Snjloptions used during generation. 1061114237Snjl 1062114237Snjl Previous Release 1063114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 1064114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 1065114237Snjl Current Release: 1066114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 1067114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 1068114237Snjl 1069114237Snjl 1070114237Snjl2) iASL Compiler/Disassembler 1071114237Snjl 1072114237SnjlFixed a compiler code generation problem for "Interrupt" Resource 1073114237SnjlDescriptors. If specified in the ASL, the optional "Resource 1074114237SnjlSource Index" and "Resource Source" fields were not inserted into 1075114237Snjlthe correct location within the AML resource descriptor, creating 1076114237Snjlan invalid descriptor. 1077114237Snjl 1078114237SnjlFixed a disassembler problem for "Interrupt" resource 1079126372Snjldescriptors. 1080126372SnjlThe optional "Resource Source Index" and "Resource Source" fields 1081126372Snjlwere ignored. 1082114237Snjl 1083114237Snjl 1084114237Snjl---------------------------------------- 1085114237Snjl22 November 2002. Summary of changes for version 20021122. 1086114237Snjl 1087114237Snjl 1088114237Snjl1) ACPI CA Core Subsystem: 1089114237Snjl 1090114237SnjlFixed a reported problem where an object stored to a Method Local 1091114237Snjlor Arg was not copied to a new object during the store - the 1092114237Snjlobject pointer was simply copied to the Local/Arg. This caused 1093114237Snjlall subsequent operations on the Local/Arg to also affect the 1094114237Snjloriginal source of the store operation. 1095114237Snjl 1096114237SnjlFixed a problem where a store operation to a Method Local or Arg 1097114237Snjlwas not completed properly if the Local/Arg contained a reference 1098114237Snjl(from RefOf) to a named field. The general-purpose store-to- 1099114237Snjlnamespace-node code is now used so that this case is handled 1100114237Snjlautomatically. 1101114237Snjl 1102114237SnjlFixed a problem where the internal object copy routine would 1103126372Snjlcause 1104126372Snjla protection fault if the object being copied was a Package and 1105126372Snjlcontained either 1) a NULL package element or 2) a nested sub- 1106114237Snjlpackage. 1107114237Snjl 1108114237SnjlFixed a problem with the GPE initialization that resulted from an 1109114237Snjlambiguity in the ACPI specification. One section of the 1110114237Snjlspecification states that both the address and length of the GPE 1111114237Snjlblock must be zero if the block is not supported. Another 1112126372Snjlsection 1113126372Snjlimplies that only the address need be zero if the block is not 1114126372Snjlsupported. The code has been changed so that both the address 1115126372Snjland 1116126372Snjlthe length must be non-zero to indicate a valid GPE block (i.e., 1117126372Snjlif either the address or the length is zero, the GPE block is 1118126372Snjlinvalid.) 1119114237Snjl 1120114237SnjlCode and Data Size: Current core subsystem library sizes are 1121126372Snjlshown 1122126372Snjlbelow. These are the code and data sizes for the acpica.lib 1123126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1124126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1125126372Snjlversion of the code includes the debug output trace mechanism and 1126126372Snjlhas a much larger code and data size. Note that these values 1127126372Snjlwill 1128126372Snjlvary depending on the efficiency of the compiler and the compiler 1129126372Snjloptions used during generation. 1130114237Snjl 1131114237Snjl Previous Release 1132114237Snjl Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 1133114237Snjl Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 1134114237Snjl Current Release: 1135114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 1136114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 1137114237Snjl 1138114237Snjl 1139114237Snjl2) Linux 1140114237Snjl 1141114237SnjlCleaned up EC driver. Exported an external EC read/write 1142114237Snjlinterface. By going through this, other drivers (most notably 1143114237Snjlsonypi) will be able to serialize access to the EC. 1144114237Snjl 1145114237Snjl 1146114237Snjl3) iASL Compiler/Disassembler 1147114237Snjl 1148114237SnjlImplemented support to optionally generate include files for both 1149114237SnjlASM and C (the -i switch). This simplifies BIOS development by 1150114237Snjlautomatically creating include files that contain external 1151114237Snjldeclarations for the symbols that are created within the 1152114237Snjl(optionally generated) ASM and C AML source files. 1153114237Snjl 1154114237Snjl 1155114237Snjl---------------------------------------- 1156107325Siwasaki15 November 2002. Summary of changes for version 20021115. 1157104470Siwasaki 1158107325Siwasaki1) ACPI CA Core Subsystem: 1159107325Siwasaki 1160114237SnjlFixed a memory leak problem where an error during resolution of 1161114237Snjlmethod arguments during a method invocation from another method 1162114237Snjlfailed to cleanup properly by deleting all successfully resolved 1163114237Snjlargument objects. 1164107325Siwasaki 1165114237SnjlFixed a problem where the target of the Index() operator was not 1166114237Snjlcorrectly constructed if the source object was a package. This 1167114237Snjlproblem has not been detected because the use of a target operand 1168114237Snjlwith Index() is very rare. 1169107325Siwasaki 1170107325SiwasakiFixed a problem with the Index() operator where an attempt was 1171107325Siwasakimade to delete the operand objects twice. 1172107325Siwasaki 1173107325SiwasakiFixed a problem where an attempt was made to delete an operand 1174114237Snjltwice during execution of the CondRefOf() operator if the target 1175114237Snjldid not exist. 1176107325Siwasaki 1177114237SnjlImplemented the first of perhaps several internal create object 1178114237Snjlfunctions that create and initialize a specific object type. 1179126372SnjlThis 1180126372Snjlconsolidates duplicated code wherever the object is created, thus 1181126372Snjlshrinking the size of the subsystem. 1182107325Siwasaki 1183114237SnjlImplemented improved debug/error messages for errors that occur 1184114237Snjlduring nested method invocations. All executing method pathnames 1185114237Snjlare displayed (with the error) as the call stack is unwound - 1186126372Snjlthus 1187126372Snjlsimplifying debug. 1188107325Siwasaki 1189107325SiwasakiFixed a problem introduced in the 10/02 release that caused 1190114237Snjlpremature deletion of a buffer object if a buffer was used as an 1191114237SnjlASL operand where an integer operand is required (Thus causing an 1192114237Snjlimplicit object conversion from Buffer to Integer.) The change 1193126372Snjlin 1194126372Snjlthe 10/02 release was attempting to fix a memory leak (albeit 1195114237Snjlincorrectly.) 1196107325Siwasaki 1197107325SiwasakiCode and Data Size: Current core subsystem library sizes are 1198126372Snjlshown 1199126372Snjlbelow. These are the code and data sizes for the acpica.lib 1200126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1201126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1202126372Snjlversion of the code includes the debug output trace mechanism and 1203126372Snjlhas a much larger code and data size. Note that these values 1204126372Snjlwill 1205126372Snjlvary depending on the efficiency of the compiler and the compiler 1206126372Snjloptions used during generation. 1207107325Siwasaki 1208107325Siwasaki Previous Release 1209107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 1210107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 1211107325Siwasaki Current Release: 1212107325Siwasaki Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 1213107325Siwasaki Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 1214107325Siwasaki 1215107325Siwasaki 1216107325Siwasaki2) Linux 1217107325Siwasaki 1218114237SnjlChanged the implementation of the ACPI semaphores to use down() 1219114237Snjlinstead of down_interruptable(). It is important that the 1220114237Snjlexecution of ACPI control methods not be interrupted by signals. 1221114237SnjlMethods must run to completion, or the system may be left in an 1222114237Snjlunknown/unstable state. 1223107325Siwasaki 1224107325SiwasakiFixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not 1225126372Snjlset. 1226126372Snjl(Shawn Starr) 1227107325Siwasaki 1228107325Siwasaki 1229107325Siwasaki3) iASL Compiler/Disassembler 1230107325Siwasaki 1231107325Siwasaki 1232114237SnjlChanged the default location of output files. All output files 1233114237Snjlare now placed in the current directory by default instead of in 1234114237Snjlthe directory of the source file. This change may affect some 1235114237Snjlexisting makefiles, but it brings the behavior of the compiler in 1236114237Snjlline with other similar tools. The location of the output files 1237114237Snjlcan be overridden with the -p command line switch. 1238107325Siwasaki 1239114237Snjl 1240107325Siwasaki---------------------------------------- 1241107325Siwasaki11 November 2002. Summary of changes for version 20021111. 1242107325Siwasaki 1243107325Siwasaki 1244114237Snjl0) ACPI Specification 2.0B is released and is now available at: 1245114237Snjlhttp://www.acpi.info/index.html 1246107325Siwasaki 1247107325Siwasaki 1248107325Siwasaki1) ACPI CA Core Subsystem: 1249107325Siwasaki 1250107325SiwasakiImplemented support for the ACPI 2.0 SMBus Operation Regions. 1251114237SnjlThis includes the early detection and handoff of the request to 1252114237Snjlthe SMBus region handler (avoiding all of the complex field 1253107325Siwasakisupport code), and support for the bidirectional return packet 1254107325Siwasakifrom an SMBus write operation. This paves the way for the 1255107325Siwasakidevelopment of SMBus drivers in each host operating system. 1256107325Siwasaki 1257107325SiwasakiFixed a problem where the semaphore WAIT_FOREVER constant was 1258107325Siwasakidefined as 32 bits, but must be 16 bits according to the ACPI 1259107325Siwasakispecification. This had the side effect of causing ASL 1260107325SiwasakiMutex/Event timeouts even though the ASL code requested a wait 1261107325Siwasakiforever. Changed all internal references to the ACPI timeout 1262107325Siwasakiparameter to 16 bits to prevent future problems. Changed the 1263126372Snjlname 1264126372Snjlof WAIT_FOREVER to ACPI_WAIT_FOREVER. 1265107325Siwasaki 1266107325SiwasakiCode and Data Size: Current core subsystem library sizes are 1267126372Snjlshown 1268126372Snjlbelow. These are the code and data sizes for the acpica.lib 1269126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1270126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1271126372Snjlversion of the code includes the debug output trace mechanism and 1272126372Snjlhas a much larger code and data size. Note that these values 1273126372Snjlwill 1274126372Snjlvary depending on the efficiency of the compiler and the compiler 1275126372Snjloptions used during generation. 1276107325Siwasaki 1277107325Siwasaki Previous Release 1278107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 1279107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 1280107325Siwasaki Current Release: 1281107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 1282107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 1283107325Siwasaki 1284107325Siwasaki 1285107325Siwasaki2) Linux 1286107325Siwasaki 1287107325SiwasakiModule loading/unloading fixes (John Cagle) 1288107325Siwasaki 1289107325Siwasaki 1290107325Siwasaki3) iASL Compiler/Disassembler 1291107325Siwasaki 1292107325SiwasakiAdded support for the SMBBlockProcessCall keyword (ACPI 2.0) 1293107325Siwasaki 1294107325SiwasakiImplemented support for the disassembly of all SMBus protocol 1295107325Siwasakikeywords (SMBQuick, SMBWord, etc.) 1296107325Siwasaki 1297107325Siwasaki---------------------------------------- 1298107325Siwasaki01 November 2002. Summary of changes for version 20021101. 1299107325Siwasaki 1300107325Siwasaki 1301107325Siwasaki1) ACPI CA Core Subsystem: 1302107325Siwasaki 1303107325SiwasakiFixed a problem where platforms that have a GPE1 block but no 1304126372SnjlGPE0 1305126372Snjlblock were not handled correctly. This resulted in a "GPE 1306114237Snjloverlap" error message. GPE0 is no longer required. 1307107325Siwasaki 1308107325SiwasakiRemoved code added in the previous release that inserted nodes 1309114237Snjlinto the namespace in alphabetical order. This caused some side- 1310114237Snjleffects on various machines. The root cause of the problem is 1311114237Snjlstill under investigation since in theory, the internal ordering 1312114237Snjlof the namespace nodes should not matter. 1313107325Siwasaki 1314107325Siwasaki 1315114237SnjlEnhanced error reporting for the case where a named object is not 1316114237Snjlfound during control method execution. The full ACPI namepath 1317114237Snjl(name reference) of the object that was not found is displayed in 1318114237Snjlthis case. 1319107325Siwasaki 1320114237SnjlNote: as a result of the overhaul of the namespace object types 1321126372Snjlin 1322126372Snjlthe previous release, the namespace nodes for the predefined 1323114237Snjlscopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE 1324114237Snjlinstead of ACPI_TYPE_ANY. This simplifies the namespace 1325114237Snjlmanagement code but may affect code that walks the namespace tree 1326114237Snjllooking for specific object types. 1327114237Snjl 1328107325SiwasakiCode and Data Size: Current core subsystem library sizes are 1329126372Snjlshown 1330126372Snjlbelow. These are the code and data sizes for the acpica.lib 1331126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1332126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1333126372Snjlversion of the code includes the debug output trace mechanism and 1334126372Snjlhas a much larger code and data size. Note that these values 1335126372Snjlwill 1336126372Snjlvary depending on the efficiency of the compiler and the compiler 1337126372Snjloptions used during generation. 1338107325Siwasaki 1339107325Siwasaki Previous Release 1340107325Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 1341107325Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 1342107325Siwasaki Current Release: 1343107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 1344107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 1345107325Siwasaki 1346107325Siwasaki 1347107325Siwasaki2) Linux 1348107325Siwasaki 1349107325SiwasakiFixed a problem introduced in the previous release where the 1350114237SnjlProcessor and Thermal objects were not recognized and installed 1351126372Snjlin 1352126372Snjl/proc. This was related to the scope type change described 1353114237Snjlabove. 1354107325Siwasaki 1355107325Siwasaki 1356107325Siwasaki3) iASL Compiler/Disassembler 1357107325Siwasaki 1358114237SnjlImplemented the -g option to get all of the required ACPI tables 1359114237Snjlfrom the registry and save them to files (Windows version of the 1360114237Snjlcompiler only.) The required tables are the FADT, FACS, and 1361114237SnjlDSDT. 1362107325Siwasaki 1363114237SnjlAdded ACPI table checksum validation during table disassembly in 1364114237Snjlorder to catch corrupted tables. 1365107325Siwasaki 1366107325Siwasaki 1367107325Siwasaki---------------------------------------- 1368107325Siwasaki22 October 2002. Summary of changes for version 20021022. 1369107325Siwasaki 1370107325Siwasaki1) ACPI CA Core Subsystem: 1371107325Siwasaki 1372114237SnjlImplemented a restriction on the Scope operator that the target 1373114237Snjlmust already exist in the namespace at the time the operator is 1374114237Snjlencountered (during table load or method execution). In other 1375114237Snjlwords, forward references are not allowed and Scope() cannot 1376114237Snjlcreate a new object. This changes the previous behavior where the 1377114237Snjlinterpreter would create the name if not found. This new 1378126372Snjlbehavior 1379126372Snjlcorrectly enables the search-to-root algorithm during namespace 1380126372Snjllookup of the target name. Because of this upsearch, this fixes 1381126372Snjlthe known Compaq _SB_.OKEC problem and makes both the AML 1382126372Snjlinterpreter and iASL compiler compatible with other ACPI 1383114237Snjlimplementations. 1384107325Siwasaki 1385114237SnjlCompleted a major overhaul of the internal ACPI object types for 1386114237Snjlthe ACPI Namespace and the associated operand objects. Many of 1387114237Snjlthese types had become obsolete with the introduction of the two- 1388114237Snjlpass namespace load. This cleanup simplifies the code and makes 1389114237Snjlthe entire namespace load mechanism much clearer and easier to 1390114237Snjlunderstand. 1391107325Siwasaki 1392114237SnjlImproved debug output for tracking scope opening/closing to help 1393114237Snjldiagnose scoping issues. The old scope name as well as the new 1394114237Snjlscope name are displayed. Also improved error messages for 1395114237Snjlproblems with ASL Mutex objects and error messages for GPE 1396114237Snjlproblems. 1397107325Siwasaki 1398107325SiwasakiCleaned up the namespace dump code, removed obsolete code. 1399107325Siwasaki 1400114237SnjlAll string output (for all namespace/object dumps) now uses the 1401114237Snjlcommon ACPI string output procedure which handles escapes 1402126372Snjlproperly 1403126372Snjland does not emit non-printable characters. 1404107325Siwasaki 1405107325SiwasakiFixed some issues with constants in the 64-bit version of the 1406107325Siwasakilocal C library (utclib.c) 1407107325Siwasaki 1408107325Siwasaki 1409107325Siwasaki2) Linux 1410107325Siwasaki 1411107325SiwasakiEC Driver: No longer attempts to acquire the Global Lock at 1412107325Siwasakiinterrupt level. 1413107325Siwasaki 1414107325Siwasaki 1415107325Siwasaki3) iASL Compiler/Disassembler 1416107325Siwasaki 1417107325SiwasakiImplemented ACPI 2.0B grammar change that disallows all Type 1 1418126372Snjland 1419126372Snjl2 opcodes outside of a control method. This means that the 1420114237Snjl"executable" operators (versus the "namespace" operators) cannot 1421114237Snjlbe used at the table level; they can only be used within a 1422126372Snjlcontrol 1423126372Snjlmethod. 1424107325Siwasaki 1425107325SiwasakiImplemented the restriction on the Scope() operator where the 1426107325Siwasakitarget must already exist in the namespace at the time the 1427114237Snjloperator is encountered (during ASL compilation). In other words, 1428114237Snjlforward references are not allowed and Scope() cannot create a 1429126372Snjlnew 1430126372Snjlobject. This makes the iASL compiler compatible with other ACPI 1431126372Snjlimplementations and makes the Scope() implementation adhere to 1432126372Snjlthe 1433126372SnjlACPI specification. 1434107325Siwasaki 1435107325SiwasakiFixed a problem where namepath optimization for the Alias 1436126372Snjloperator 1437126372Snjlwas optimizing the wrong path (of the two namepaths.) This 1438126372Snjlcaused 1439126372Snjla "Missing alias link" error message. 1440107325Siwasaki 1441114237SnjlFixed a problem where an "unknown reserved name" warning could be 1442114237Snjlincorrectly generated for names like "_SB" when the trailing 1443114237Snjlunderscore is not used in the original ASL. 1444107325Siwasaki 1445107325SiwasakiFixed a problem where the reserved name check did not handle 1446114237SnjlNamePaths with multiple NameSegs correctly. The first nameseg of 1447114237Snjlthe NamePath was examined instead of the last NameSeg. 1448107325Siwasaki 1449107325Siwasaki 1450107325Siwasaki---------------------------------------- 1451107325Siwasaki 1452104470Siwasaki02 October 2002. Summary of changes for this release. 1453104470Siwasaki 1454104470Siwasaki 1455104470Siwasaki1) ACPI CA Core Subsystem version 20021002: 1456104470Siwasaki 1457104470SiwasakiFixed a problem where a store/copy of a string to an existing 1458104470Siwasakistring did not always set the string length properly in the 1459126372SnjlString 1460126372Snjlobject. 1461104470Siwasaki 1462104470SiwasakiFixed a reported problem with the ToString operator where the 1463104470Siwasakibehavior was identical to the ToHexString operator instead of 1464126372Snjljust 1465126372Snjlsimply converting a raw buffer to a string data type. 1466104470Siwasaki 1467104470SiwasakiFixed a problem where CopyObject and the other "explicit" 1468104470Siwasakiconversion operators were not updating the internal namespace 1469126372Snjlnode 1470126372Snjltype as part of the store operation. 1471104470Siwasaki 1472104470SiwasakiFixed a memory leak during implicit source operand conversion 1473114237Snjlwhere the original object was not deleted if it was converted to 1474126372Snjla 1475126372Snjlnew object of a different type. 1476104470Siwasaki 1477104470SiwasakiEnhanced error messages for all problems associated with 1478126372Snjlnamespace 1479126372Snjllookups. Common procedure generates and prints the lookup name 1480126372Snjlas 1481126372Snjlwell as the formatted status. 1482104470Siwasaki 1483104470SiwasakiCompleted implementation of a new design for the Alias support 1484104470Siwasakiwithin the namespace. The existing design did not handle the 1485126372Snjlcase 1486126372Snjlwhere a new object was assigned to one of the two names due to 1487126372Snjlthe 1488126372Snjluse of an explicit conversion operator, resulting in the two 1489126372Snjlnames 1490126372Snjlpointing to two different objects. The new design simply points 1491126372Snjlthe Alias name to the original name node - not to the object. 1492126372SnjlThis results in a level of indirection that must be handled in 1493126372Snjlthe 1494126372Snjlname resolution mechanism. 1495104470Siwasaki 1496104470SiwasakiCode and Data Size: Current core subsystem library sizes are 1497126372Snjlshown 1498126372Snjlbelow. These are the code and data sizes for the acpica.lib 1499126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1500126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1501126372Snjlversion of the code includes the debug output trace mechanism and 1502126372Snjlhas a larger code and data size. Note that these values will 1503126372Snjlvary 1504126372Snjldepending on the efficiency of the compiler and the compiler 1505126372Snjloptions used during generation. 1506104470Siwasaki 1507104470Siwasaki Previous Release 1508104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 1509104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 1510104470Siwasaki Current Release: 1511104470Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 1512104470Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 1513104470Siwasaki 1514104470Siwasaki 1515104470Siwasaki2) Linux 1516104470Siwasaki 1517104470SiwasakiInitialize thermal driver's timer before it is used. (Knut 1518104470SiwasakiNeumann) 1519104470Siwasaki 1520104470SiwasakiAllow handling negative celsius values. (Kochi Takayoshi) 1521104470Siwasaki 1522114237SnjlFix thermal management and make trip points. R/W (Pavel Machek) 1523104470Siwasaki 1524104470SiwasakiFix /proc/acpi/sleep. (P. Christeas) 1525104470Siwasaki 1526104470SiwasakiIA64 fixes. (David Mosberger) 1527104470Siwasaki 1528104470SiwasakiFix reversed logic in blacklist code. (Sergio Monteiro Basto) 1529104470Siwasaki 1530104470SiwasakiReplace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik 1531104470SiwasakiBrodowski) 1532104470Siwasaki 1533104470Siwasaki 1534104470Siwasaki3) iASL Compiler/Disassembler 1535104470Siwasaki 1536104470SiwasakiClarified some warning/error messages. 1537104470Siwasaki 1538104470Siwasaki 1539104470Siwasaki---------------------------------------- 1540104470Siwasaki18 September 2002. Summary of changes for this release. 1541104470Siwasaki 1542104470Siwasaki 1543104470Siwasaki1) ACPI CA Core Subsystem version 20020918: 1544104470Siwasaki 1545114237SnjlFixed a reported problem with reference chaining (via the Index() 1546114237Snjland RefOf() operators) in the ObjectType() and SizeOf() 1547126372Snjloperators. 1548126372SnjlThe definition of these operators includes the dereferencing of 1549126372Snjlall chained references to return information on the base object. 1550104470Siwasaki 1551104470SiwasakiFixed a problem with stores to indexed package elements - the 1552104470Siwasakiexisting code would not complete the store if an "implicit 1553114237Snjlconversion" was not performed. In other words, if the existing 1554114237Snjlobject (package element) was to be replaced completely, the code 1555114237Snjldidn't handle this case. 1556104470Siwasaki 1557104470SiwasakiRelaxed typechecking on the ASL "Scope" operator to allow the 1558104470Siwasakitarget name to refer to an object of type Integer, String, or 1559104470SiwasakiBuffer, in addition to the scoping object types (Device, 1560104470Siwasakipredefined Scopes, Processor, PowerResource, and ThermalZone.) 1561114237SnjlThis allows existing AML code that has workarounds for a bug in 1562114237SnjlWindows to function properly. A warning is issued, however. 1563126372SnjlThis 1564126372Snjlaffects both the AML interpreter and the iASL compiler. Below is 1565126372Snjlan example of this type of ASL code: 1566104470Siwasaki 1567104470Siwasaki Name(DEB,0x00) 1568104470Siwasaki Scope(DEB) 1569104470Siwasaki { 1570104470Siwasaki 1571114237SnjlFixed some reported problems with 64-bit integer support in the 1572114237Snjllocal implementation of C library functions (clib.c) 1573104470Siwasaki 1574104470Siwasaki 1575104470Siwasaki2) Linux 1576104470Siwasaki 1577104470SiwasakiUse ACPI fix map region instead of IOAPIC region, since it is 1578104470Siwasakiundefined in non-SMP. 1579104470Siwasaki 1580114237SnjlEnsure that the SCI has the proper polarity and trigger, even on 1581114237Snjlsystems that do not have an interrupt override entry in the MADT. 1582104470Siwasaki 1583104470Siwasaki2.5 big driver reorganization (Pat Mochel) 1584104470Siwasaki 1585104470SiwasakiUse early table mapping code from acpitable.c (Andi Kleen) 1586104470Siwasaki 1587104470SiwasakiNew blacklist entries (Andi Kleen) 1588104470Siwasaki 1589114237SnjlBlacklist improvements. Split blacklist code out into a separate 1590114237Snjlfile. Move checking the blacklist to very early. Previously, we 1591114237Snjlwould use ACPI tables, and then halfway through init, check the 1592114237Snjlblacklist -- too late. Now, it's early enough to completely fall- 1593114237Snjlback to non-ACPI. 1594104470Siwasaki 1595104470Siwasaki 1596104470Siwasaki3) iASL Compiler/Disassembler version 20020918: 1597104470Siwasaki 1598114237SnjlFixed a problem where the typechecking code didn't know that an 1599114237Snjlalias could point to a method. In other words, aliases were not 1600114237Snjlbeing dereferenced during typechecking. 1601104470Siwasaki 1602104470Siwasaki 1603104470Siwasaki---------------------------------------- 1604104470Siwasaki29 August 2002. Summary of changes for this release. 1605104470Siwasaki 1606104470Siwasaki1) ACPI CA Core Subsystem Version 20020829: 1607104470Siwasaki 1608114237SnjlIf the target of a Scope() operator already exists, it must be an 1609114237Snjlobject type that actually opens a scope -- such as a Device, 1610114237SnjlMethod, Scope, etc. This is a fatal runtime error. Similar 1611126372Snjlerror 1612126372Snjlcheck has been added to the iASL compiler also. 1613104470Siwasaki 1614114237SnjlTightened up the namespace load to disallow multiple names in the 1615114237Snjlsame scope. This previously was allowed if both objects were of 1616114237Snjlthe same type. (i.e., a lookup was the same as entering a new 1617114237Snjlname). 1618104470Siwasaki 1619104470Siwasaki 1620104470Siwasaki2) Linux 1621104470Siwasaki 1622104470SiwasakiEnsure that the ACPI interrupt has the proper trigger and 1623104470Siwasakipolarity. 1624104470Siwasaki 1625104470Siwasakilocal_irq_disable is extraneous. (Matthew Wilcox) 1626104470Siwasaki 1627104470SiwasakiMake "acpi=off" actually do what it says, and not use the ACPI 1628104470Siwasakiinterpreter *or* the tables. 1629104470Siwasaki 1630104470SiwasakiAdded arch-neutral support for parsing SLIT and SRAT tables 1631126372Snjl(Kochi 1632126372SnjlTakayoshi) 1633104470Siwasaki 1634104470Siwasaki 1635104470Siwasaki3) iASL Compiler/Disassembler Version 20020829: 1636104470Siwasaki 1637104470SiwasakiImplemented namepath optimization for name declarations. For 1638104470Siwasakiexample, a declaration like "Method (\_SB_.ABCD)" would get 1639104470Siwasakioptimized to "Method (ABCD)" if the declaration is within the 1640104470Siwasaki\_SB_ scope. This optimization is in addition to the named 1641104470Siwasakireference path optimization first released in the previous 1642114237Snjlversion. This would seem to complete all possible optimizations 1643114237Snjlfor namepaths within the ASL/AML. 1644104470Siwasaki 1645114237SnjlIf the target of a Scope() operator already exists, it must be an 1646114237Snjlobject type that actually opens a scope -- such as a Device, 1647114237SnjlMethod, Scope, etc. 1648104470Siwasaki 1649114237SnjlImplemented a check and warning for unreachable code in the same 1650114237Snjlblock below a Return() statement. 1651104470Siwasaki 1652114237SnjlFixed a problem where the listing file was not generated if the 1653114237Snjlcompiler aborted if the maximum error count was exceeded (200). 1654104470Siwasaki 1655104470SiwasakiFixed a problem where the typechecking of method return values 1656126372Snjlwas 1657126372Snjlbroken. This includes the check for a return value when the 1658114237Snjlmethod is invoked as a TermArg (a return value is expected.) 1659104470Siwasaki 1660104470SiwasakiFixed a reported problem where EOF conditions during a quoted 1661104470Siwasakistring or comment caused a fault. 1662104470Siwasaki 1663104470Siwasaki 1664104470Siwasaki---------------------------------------- 1665102550Siwasaki15 August 2002. Summary of changes for this release. 1666102550Siwasaki 1667102550Siwasaki1) ACPI CA Core Subsystem Version 20020815: 1668102550Siwasaki 1669114237SnjlFixed a reported problem where a Store to a method argument that 1670114237Snjlcontains a reference did not perform the indirect store 1671126372Snjlcorrectly. 1672126372SnjlThis problem was created during the conversion to the new 1673126372Snjlreference object model - the indirect store to a method argument 1674126372Snjlcode was not updated to reflect the new model. 1675102550Siwasaki 1676114237SnjlReworked the ACPI mode change code to better conform to ACPI 2.0, 1677114237Snjlhandle corner cases, and improve code legibility (Kochi 1678102550SiwasakiTakayoshi) 1679102550Siwasaki 1680102550SiwasakiFixed a problem with the pathname parsing for the carat (^) 1681114237Snjlprefix. The heavy use of the carat operator by the new namepath 1682114237Snjloptimization in the iASL compiler uncovered a problem with the 1683126372SnjlAML 1684126372Snjlinterpreter handling of this prefix. In the case where one or 1685126372Snjlmore carats precede a single nameseg, the nameseg was treated as 1686126372Snjlstandalone and the search rule (to root) was inadvertently 1687114237Snjlapplied. This could cause both the iASL compiler and the 1688114237Snjlinterpreter to find the wrong object or to miss the error that 1689114237Snjlshould occur if the object does not exist at that exact pathname. 1690102550Siwasaki 1691114237SnjlFound and fixed the problem where the HP Pavilion DSDT would not 1692114237Snjlload. This was a relatively minor tweak to the table loading 1693126372Snjlcode 1694126372Snjl(a problem caused by the unexpected encounter with a method 1695114237Snjlinvocation not within a control method), but it does not solve 1696126372Snjlthe 1697126372Snjloverall issue of the execution of AML code at the table level. 1698126372SnjlThis investigation is still ongoing. 1699102550Siwasaki 1700102550SiwasakiCode and Data Size: Current core subsystem library sizes are 1701126372Snjlshown 1702126372Snjlbelow. These are the code and data sizes for the acpica.lib 1703126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1704126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1705126372Snjlversion of the code includes the debug output trace mechanism and 1706126372Snjlhas a larger code and data size. Note that these values will 1707126372Snjlvary 1708126372Snjldepending on the efficiency of the compiler and the compiler 1709126372Snjloptions used during generation. 1710102550Siwasaki 1711102550Siwasaki Previous Release 1712104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 1713104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 1714102550Siwasaki Current Release: 1715104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 1716104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 1717102550Siwasaki 1718102550Siwasaki 1719102550Siwasaki2) Linux 1720102550Siwasaki 1721102550SiwasakiRemove redundant slab.h include (Brad Hards) 1722102550Siwasaki 1723102550SiwasakiFix several bugs in thermal.c (Herbert Nachtnebel) 1724102550Siwasaki 1725102550SiwasakiMake CONFIG_ACPI_BOOT work properly (Pavel Machek) 1726102550Siwasaki 1727104470SiwasakiChange acpi_system_suspend to use updated irq functions (Pavel 1728104470SiwasakiMachek) 1729102550Siwasaki 1730102550SiwasakiExport acpi_get_firmware_table (Matthew Wilcox) 1731102550Siwasaki 1732102550SiwasakiUse proper root proc entry for ACPI (Kochi Takayoshi) 1733102550Siwasaki 1734102550SiwasakiFix early-boot table parsing (Bjorn Helgaas) 1735102550Siwasaki 1736102550Siwasaki 1737102550Siwasaki3) iASL Compiler/Disassembler 1738102550Siwasaki 1739114237SnjlReworked the compiler options to make them more consistent and to 1740114237Snjluse two-letter options where appropriate. We were running out of 1741114237Snjlsensible letters. This may break some makefiles, so check the 1742114237Snjlcurrent options list by invoking the compiler with no parameters. 1743102550Siwasaki 1744102550SiwasakiCompleted the design and implementation of the ASL namepath 1745114237Snjloptimization option for the compiler. This option optimizes all 1746114237Snjlreferences to named objects to the shortest possible path. The 1747114237Snjlfirst attempt tries to utilize a single nameseg (4 characters) 1748126372Snjland 1749126372Snjlthe "search-to-root" algorithm used by the interpreter. If that 1750126372Snjlcannot be used (because either the name is not in the search path 1751126372Snjlor there is a conflict with another object with the same name), 1752126372Snjlthe pathname is optimized using the carat prefix (usually a 1753126372Snjlshorter string than specifying the entire path from the root.) 1754102550Siwasaki 1755114237SnjlImplemented support to obtain the DSDT from the Windows registry 1756114237Snjl(when the disassembly option is specified with no input file). 1757114237SnjlAdded this code as the implementation for AcpiOsTableOverride in 1758114237Snjlthe Windows OSL. Migrated the 16-bit code (used in the AcpiDump 1759114237Snjlutility) to scan memory for the DSDT to the AcpiOsTableOverride 1760114237Snjlfunction in the DOS OSL to make the disassembler truly OS 1761114237Snjlindependent. 1762102550Siwasaki 1763114237SnjlImplemented a new option to disassemble and compile in one step. 1764114237SnjlWhen used without an input filename, this option will grab the 1765114237SnjlDSDT from the local machine, disassemble it, and compile it in 1766126372Snjlone 1767126372Snjlstep. 1768102550Siwasaki 1769114237SnjlAdded a warning message for invalid escapes (a backslash followed 1770114237Snjlby any character other than the allowable escapes). This catches 1771114237Snjlthe quoted string error "\_SB_" (which should be "\\_SB_" ). 1772114237SnjlAlso, there are numerous instances in the ACPI specification 1773126372Snjlwhere 1774126372Snjlthis error occurs. 1775102550Siwasaki 1776104470SiwasakiAdded a compiler option to disable all optimizations. This is 1777114237Snjlbasically the "compatibility mode" because by using this option, 1778114237Snjlthe AML code will come out exactly the same as other ASL 1779114237Snjlcompilers. 1780102550Siwasaki 1781114237SnjlAdded error messages for incorrectly ordered dependent resource 1782114237Snjlfunctions. This includes: missing EndDependentFn macro at end of 1783114237Snjldependent resource list, nested dependent function macros (both 1784114237Snjlstart and end), and missing StartDependentFn macro. These are 1785114237Snjlcommon errors that should be caught at compile time. 1786102550Siwasaki 1787114237SnjlImplemented _OSI support for the disassembler and compiler. _OSI 1788114237Snjlmust be included in the namespace for proper disassembly (because 1789114237Snjlthe disassembler must know the number of arguments.) 1790102550Siwasaki 1791104470SiwasakiAdded an "optimization" message type that is optional (off by 1792114237Snjldefault). This message is used for all optimizations - including 1793114237Snjlconstant folding, integer optimization, and namepath 1794104470Siwasakioptimization. 1795102550Siwasaki 1796102550Siwasaki---------------------------------------- 1797102550Siwasaki25 July 2002. Summary of changes for this release. 1798102550Siwasaki 1799102550Siwasaki 1800102550Siwasaki1) ACPI CA Core Subsystem Version 20020725: 1801102550Siwasaki 1802114237SnjlThe AML Disassembler has been enhanced to produce compilable ASL 1803114237Snjlcode and has been integrated into the iASL compiler (see below) 1804126372Snjlas 1805126372Snjlwell as the single-step disassembly for the AML debugger and the 1806126372Snjldisassembler for the AcpiDump utility. All ACPI 2.0A opcodes, 1807126372Snjlresource templates and macros are fully supported. The 1808114237Snjldisassembler has been tested on over 30 different AML files, 1809114237Snjlproducing identical AML when the resulting disassembled ASL file 1810114237Snjlis recompiled with the same ASL compiler. 1811102550Siwasaki 1812114237SnjlModified the Resource Manager to allow zero interrupts and zero 1813114237Snjldma channels during the GetCurrentResources call. This was 1814114237Snjlcausing problems on some platforms. 1815102550Siwasaki 1816114237SnjlAdded the AcpiOsRedirectOutput interface to the OSL to simplify 1817114237Snjloutput redirection for the AcpiOsPrintf and AcpiOsVprintf 1818114237Snjlinterfaces. 1819102550Siwasaki 1820102550SiwasakiCode and Data Size: Current core subsystem library sizes are 1821126372Snjlshown 1822126372Snjlbelow. These are the code and data sizes for the acpica.lib 1823126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1824126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1825126372Snjlversion of the code includes the debug output trace mechanism and 1826126372Snjlhas a larger code and data size. Note that these values will 1827126372Snjlvary 1828126372Snjldepending on the efficiency of the compiler and the compiler 1829126372Snjloptions used during generation. 1830102550Siwasaki 1831102550Siwasaki Previous Release 1832104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 1833104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 1834102550Siwasaki Current Release: 1835104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 1836104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 1837102550Siwasaki 1838102550Siwasaki 1839102550Siwasaki2) Linux 1840102550Siwasaki 1841102550SiwasakiFixed a panic in the EC driver (Dominik Brodowski) 1842102550Siwasaki 1843114237SnjlImplemented checksum of the R/XSDT itself during Linux table scan 1844114237Snjl(Richard Schaal) 1845102550Siwasaki 1846102550Siwasaki 1847102550Siwasaki3) iASL compiler 1848102550Siwasaki 1849114237SnjlThe AML disassembler is integrated into the compiler. The "-d" 1850114237Snjloption invokes the disassembler to completely disassemble an 1851114237Snjlinput AML file, producing as output a text ASL file with the 1852114237Snjlextension ".dsl" (to avoid name collisions with existing .asl 1853114237Snjlsource files.) A future enhancement will allow the disassembler 1854114237Snjlto obtain the BIOS DSDT from the registry under Windows. 1855102550Siwasaki 1856102550SiwasakiFixed a problem with the VendorShort and VendorLong resource 1857102550Siwasakidescriptors where an invalid AML sequence was created. 1858102550Siwasaki 1859114237SnjlImplemented a fix for BufferData term in the ASL parser. It was 1860114237Snjlinadvertently defined twice, allowing invalid syntax to pass and 1861114237Snjlcausing reduction conflicts. 1862102550Siwasaki 1863104470SiwasakiFixed a problem where the Ones opcode could get converted to a 1864104470Siwasakivalue of zero if "Ones" was used where a byte, word or dword 1865126372Snjlvalue 1866126372Snjlwas expected. The 64-bit value is now truncated to the correct 1867126372Snjlsize with the correct value. 1868102550Siwasaki 1869102550Siwasaki 1870102550Siwasaki---------------------------------------- 1871102550Siwasaki02 July 2002. Summary of changes for this release. 1872102550Siwasaki 1873102550Siwasaki 1874102550Siwasaki1) ACPI CA Core Subsystem Version 20020702: 1875102550Siwasaki 1876114237SnjlThe Table Manager code has been restructured to add several new 1877114237Snjlfeatures. Tables that are not required by the core subsystem 1878114237Snjl(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer 1879114237Snjlvalidated in any way and are returned from AcpiGetFirmwareTable 1880126372Snjlif 1881126372Snjlrequested. The AcpiOsTableOverride interface is now called for 1882126372Snjleach table that is loaded by the subsystem in order to allow the 1883126372Snjlhost to override any table it chooses. Previously, only the DSDT 1884126372Snjlcould be overridden. Added one new files, tbrsdt.c and 1885114237Snjltbgetall.c. 1886102550Siwasaki 1887114237SnjlFixed a problem with the conversion of internal package objects 1888126372Snjlto 1889126372Snjlexternal objects (when a package is returned from a control 1890114237Snjlmethod.) The return buffer length was set to zero instead of the 1891114237Snjlproper length of the package object. 1892102550Siwasaki 1893104470SiwasakiFixed a reported problem with the use of the RefOf and DeRefOf 1894114237Snjloperators when passing reference arguments to control methods. A 1895114237Snjlnew type of Reference object is used internally for references 1896114237Snjlproduced by the RefOf operator. 1897102550Siwasaki 1898102550SiwasakiAdded additional error messages in the Resource Manager to 1899126372Snjlexplain 1900126372SnjlAE_BAD_DATA errors when they occur during resource parsing. 1901102550Siwasaki 1902104470SiwasakiSplit the AcpiEnableSubsystem into two primitives to enable a 1903104470Siwasakifiner granularity initialization sequence. These two calls 1904126372Snjlshould 1905126372Snjlbe called in this order: AcpiEnableSubsystem (flags), 1906114237SnjlAcpiInitializeObjects (flags). The flags parameter remains the 1907114237Snjlsame. 1908102550Siwasaki 1909102550Siwasaki 1910102550Siwasaki2) Linux 1911102550Siwasaki 1912114237SnjlUpdated the ACPI utilities module to understand the new style of 1913114237Snjlfully resolved package objects that are now returned from the 1914126372Snjlcore 1915126372Snjlsubsystem. This eliminates errors of the form: 1916102550Siwasaki 1917102550Siwasaki ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT] 1918102550Siwasaki acpi_utils-0430 [145] acpi_evaluate_reference: 1919102550Siwasaki Invalid element in package (not a device reference) 1920102550Siwasaki 1921102550SiwasakiThe method evaluation utility uses the new buffer allocation 1922102550Siwasakischeme instead of calling AcpiEvaluate Object twice. 1923102550Siwasaki 1924102550SiwasakiAdded support for ECDT. This allows the use of the Embedded 1925114237SnjlController before the namespace has been fully initialized, which 1926114237Snjlis necessary for ACPI 2.0 support, and for some laptops to 1927114237Snjlinitialize properly. (Laptops using ECDT are still rare, so only 1928114237Snjllimited testing was performed of the added functionality.) 1929102550Siwasaki 1930102550SiwasakiFixed memory leaks in the EC driver. 1931102550Siwasaki 1932102550SiwasakiEliminated a brittle code structure in acpi_bus_init(). 1933102550Siwasaki 1934114237SnjlEliminated the acpi_evaluate() helper function in utils.c. It is 1935114237Snjlno longer needed since acpi_evaluate_object can optionally 1936104470Siwasakiallocate memory for the return object. 1937102550Siwasaki 1938114237SnjlImplemented fix for keyboard hang when getting battery readings 1939126372Snjlon 1940126372Snjlsome systems (Stephen White) 1941102550Siwasaki 1942102550SiwasakiPCI IRQ routing update (Dominik Brodowski) 1943102550Siwasaki 1944114237SnjlFix an ifdef to allow compilation on UP with LAPIC but no IOAPIC 1945114237Snjlsupport 1946102550Siwasaki 1947102550Siwasaki---------------------------------------- 1948102550Siwasaki11 June 2002. Summary of changes for this release. 1949102550Siwasaki 1950102550Siwasaki 1951102550Siwasaki1) ACPI CA Core Subsystem Version 20020611: 1952102550Siwasaki 1953104470SiwasakiFixed a reported problem where constants such as Zero and One 1954114237Snjlappearing within _PRT packages were not handled correctly within 1955114237Snjlthe resource manager code. Originally reported against the ASL 1956114237Snjlcompiler because the code generator now optimizes integers to 1957114237Snjltheir minimal AML representation (i.e. AML constants if 1958126372Snjlpossible.) 1959126372SnjlThe _PRT code now handles all AML constant opcodes correctly 1960126372Snjl(Zero, One, Ones, Revision). 1961102550Siwasaki 1962102550SiwasakiFixed a problem with the Concatenate operator in the AML 1963114237Snjlinterpreter where a buffer result object was incorrectly marked 1964126372Snjlas 1965126372Snjlnot fully evaluated, causing a run-time error of AE_AML_INTERNAL. 1966102550Siwasaki 1967104470SiwasakiAll package sub-objects are now fully resolved before they are 1968114237Snjlreturned from the external ACPI interfaces. This means that name 1969114237Snjlstrings are resolved to object handles, and constant operators 1970114237Snjl(Zero, One, Ones, Revision) are resolved to Integers. 1971102550Siwasaki 1972102550SiwasakiImplemented immediate resolution of the AML Constant opcodes 1973104470Siwasaki(Zero, One, Ones, Revision) to Integer objects upon detection 1974104470Siwasakiwithin the AML stream. This has simplified and reduced the 1975104470Siwasakigenerated code size of the subsystem by eliminating about 10 1976104470Siwasakiswitch statements for these constants (which previously were 1977104470Siwasakicontained in Reference objects.) The complicating issues are 1978126372Snjlthat 1979126372Snjlthe Zero opcode is used as a "placeholder" for unspecified 1980114237Snjloptional target operands and stores to constants are defined to 1981126372Snjlbe 1982126372Snjlno-ops. 1983102550Siwasaki 1984102550SiwasakiCode and Data Size: Current core subsystem library sizes are 1985126372Snjlshown 1986126372Snjlbelow. These are the code and data sizes for the acpica.lib 1987114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1988114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 1989114237Snjlversion of the code includes the debug output trace mechanism and 1990114237Snjlhas a larger code and data size. Note that these values will 1991126372Snjlvary 1992126372Snjldepending on the efficiency of the compiler and the compiler 1993114237Snjloptions used during generation. 1994102550Siwasaki 1995102550Siwasaki Previous Release 1996104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 1997104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 1998102550Siwasaki Current Release: 1999104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 2000104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 2001102550Siwasaki 2002102550Siwasaki 2003102550Siwasaki2) Linux 2004102550Siwasaki 2005104470SiwasakiAdded preliminary support for obtaining _TRA data for PCI root 2006104470Siwasakibridges (Bjorn Helgaas). 2007102550Siwasaki 2008102550Siwasaki 2009102550Siwasaki3) iASL Compiler Version X2046: 2010102550Siwasaki 2011114237SnjlFixed a problem where the "_DDN" reserved name was defined to be 2012126372Snjla 2013126372Snjlcontrol method with one argument. There are no arguments, and 2014114237Snjl_DDN does not have to be a control method. 2015102550Siwasaki 2016114237SnjlFixed a problem with the Linux version of the compiler where the 2017114237Snjlsource lines printed with error messages were the wrong lines. 2018114237SnjlThis turned out to be the "LF versus CR/LF" difference between 2019114237SnjlWindows and Unix. This appears to be the longstanding issue 2020114237Snjlconcerning listing output and error messages. 2021102550Siwasaki 2022114237SnjlFixed a problem with the Linux version of compiler where opcode 2023114237Snjlnames within error messages were wrong. This was caused by a 2024114237Snjlslight difference in the output of the Flex tool on Linux versus 2025114237SnjlWindows. 2026102550Siwasaki 2027102550SiwasakiFixed a problem with the Linux compiler where the hex output 2028126372Snjlfiles 2029126372Snjlcontained some garbage data caused by an internal buffer overrun. 2030102550Siwasaki 2031102550Siwasaki 2032102550Siwasaki---------------------------------------- 2033102550Siwasaki17 May 2002. Summary of changes for this release. 2034102550Siwasaki 2035102550Siwasaki 2036102550Siwasaki1) ACPI CA Core Subsystem Version 20020517: 2037102550Siwasaki 2038102550SiwasakiImplemented a workaround to an BIOS bug discovered on the HP 2039104470SiwasakiOmniBook where the FADT revision number and the table size are 2040104470Siwasakiinconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The 2041126372Snjlnew 2042126372Snjlbehavior is to fallback to using only the ACPI 1.0 fields of the 2043126372SnjlFADT if the table is too small to be a ACPI 2.0 table as claimed 2044126372Snjlby the revision number. Although this is a BIOS bug, this is a 2045126372Snjlcase where the workaround is simple enough and with no side 2046126372Snjleffects, so it seemed prudent to add it. A warning message is 2047126372Snjlissued, however. 2048102550Siwasaki 2049114237SnjlImplemented minimum size checks for the fixed-length ACPI tables 2050126372Snjl- 2051126372Snjl- the FADT and FACS, as well as consistency checks between the 2052114237Snjlrevision number and the table size. 2053102550Siwasaki 2054114237SnjlFixed a reported problem in the table override support where the 2055114237Snjlnew table pointer was incorrectly treated as a physical address 2056114237Snjlinstead of a logical address. 2057102550Siwasaki 2058114237SnjlEliminated the use of the AE_AML_ERROR exception and replaced it 2059114237Snjlwith more descriptive codes. 2060102550Siwasaki 2061104470SiwasakiFixed a problem where an exception would occur if an ASL Field 2062126372Snjlwas 2063126372Snjldefined with no named Field Units underneath it (used by some 2064114237Snjlindex fields). 2065102550Siwasaki 2066102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2067126372Snjlshown 2068126372Snjlbelow. These are the code and data sizes for the acpica.lib 2069126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2070126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 2071126372Snjlversion of the code includes the debug output trace mechanism and 2072126372Snjlhas a larger code and data size. Note that these values will 2073126372Snjlvary 2074126372Snjldepending on the efficiency of the compiler and the compiler 2075126372Snjloptions used during generation. 2076102550Siwasaki 2077102550Siwasaki Previous Release 2078104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 2079104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 2080102550Siwasaki Current Release: 2081104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 2082104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 2083102550Siwasaki 2084102550Siwasaki 2085102550Siwasaki 2086102550Siwasaki2) Linux 2087102550Siwasaki 2088114237SnjlMuch work done on ACPI init (MADT and PCI IRQ routing support). 2089114237Snjl(Paul D. and Dominik Brodowski) 2090102550Siwasaki 2091102550SiwasakiFix PCI IRQ-related panic on boot (Sam Revitch) 2092102550Siwasaki 2093102550SiwasakiSet BM_ARB_DIS when entering a sleep state (Ducrot Bruno) 2094102550Siwasaki 2095102550SiwasakiFix "MHz" typo (Dominik Brodowski) 2096102550Siwasaki 2097102550SiwasakiFix RTC year 2000 issue (Dominik Brodowski) 2098102550Siwasaki 2099102550SiwasakiPreclude multiple button proc entries (Eric Brunet) 2100102550Siwasaki 2101102550SiwasakiMoved arch-specific code out of include/platform/aclinux.h 2102102550Siwasaki 2103102550Siwasaki3) iASL Compiler Version X2044: 2104102550Siwasaki 2105102550SiwasakiImplemented error checking for the string used in the EISAID 2106126372Snjlmacro 2107126372Snjl(Usually used in the definition of the _HID object.) The code 2108126372Snjlnow 2109126372Snjlstrictly enforces the PnP format - exactly 7 characters, 3 2110126372Snjluppercase letters and 4 hex digits. 2111102550Siwasaki 2112102550SiwasakiIf a raw string is used in the definition of the _HID object 2113102550Siwasaki(instead of the EISAID macro), the string must contain all 2114114237Snjlalphanumeric characters (e.g., "*PNP0011" is not allowed because 2115114237Snjlof the asterisk.) 2116102550Siwasaki 2117114237SnjlImplemented checking for invalid use of ACPI reserved names for 2118114237Snjlmost of the name creation operators (Name, Device, Event, Mutex, 2119114237SnjlOperationRegion, PowerResource, Processor, and ThermalZone.) 2120114237SnjlPreviously, this check was only performed for control methods. 2121102550Siwasaki 2122114237SnjlImplemented an additional check on the Name operator to emit an 2123114237Snjlerror if a reserved name that must be implemented in ASL as a 2124114237Snjlcontrol method is used. We know that a reserved name must be a 2125114237Snjlmethod if it is defined with input arguments. 2126102550Siwasaki 2127102550SiwasakiThe warning emitted when a namespace object reference is not 2128126372Snjlfound 2129126372Snjlduring the cross reference phase has been changed into an error. 2130126372SnjlThe "External" directive should be used for names defined in 2131126372Snjlother 2132126372Snjlmodules. 2133102550Siwasaki 2134102550Siwasaki 2135102550Siwasaki4) Tools and Utilities 2136102550Siwasaki 2137114237SnjlThe 16-bit tools (adump16 and aexec16) have been regenerated and 2138114237Snjltested. 2139102550Siwasaki 2140102550SiwasakiFixed a problem with the output of both acpidump and adump16 2141126372Snjlwhere 2142126372Snjlthe indentation of closing parentheses and brackets was not 2143114237Snjlaligned properly with the parent block. 2144102550Siwasaki 2145102550Siwasaki 2146102550Siwasaki---------------------------------------- 2147102550Siwasaki03 May 2002. Summary of changes for this release. 2148102550Siwasaki 2149102550Siwasaki 2150102550Siwasaki1) ACPI CA Core Subsystem Version 20020503: 2151102550Siwasaki 2152114237SnjlAdded support a new OSL interface that allows the host operating 2153114237Snjlsystem software to override the DSDT found in the firmware - 2154114237SnjlAcpiOsTableOverride. With this interface, the OSL can examine 2155126372Snjlthe 2156126372Snjlversion of the firmware DSDT and replace it with a different one 2157126372Snjlif desired. 2158102550Siwasaki 2159114237SnjlAdded new external interfaces for accessing ACPI registers from 2160114237Snjldevice drivers and other system software - AcpiGetRegister and 2161114237SnjlAcpiSetRegister. This was simply an externalization of the 2162114237Snjlexisting AcpiHwBitRegister interfaces. 2163102550Siwasaki 2164104470SiwasakiFixed a regression introduced in the previous build where the 2165104470SiwasakiASL/AML CreateField operator always returned an error, 2166102550Siwasaki"destination must be a NS Node". 2167102550Siwasaki 2168114237SnjlExtended the maximum time (before failure) to successfully enable 2169114237SnjlACPI mode to 3 seconds. 2170102550Siwasaki 2171102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2172126372Snjlshown 2173126372Snjlbelow. These are the code and data sizes for the acpica.lib 2174126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2175126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 2176126372Snjlversion of the code includes the debug output trace mechanism and 2177126372Snjlhas a larger code and data size. Note that these values will 2178126372Snjlvary 2179126372Snjldepending on the efficiency of the compiler and the compiler 2180126372Snjloptions used during generation. 2181102550Siwasaki 2182102550Siwasaki Previous Release 2183104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 2184104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 2185102550Siwasaki Current Release: 2186104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 2187104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 2188102550Siwasaki 2189102550Siwasaki 2190102550Siwasaki2) Linux 2191102550Siwasaki 2192104470SiwasakiEnhanced ACPI init code for SMP. We are now fully MPS and $PIR- 2193104470Siwasakifree. While 3 out of 4 of our in-house systems work fine, the 2194126372Snjllast 2195126372Snjlone still hangs when testing the LAPIC timer. 2196102550Siwasaki 2197114237SnjlRenamed many files in 2.5 kernel release to omit "acpi_" from the 2198114237Snjlname. 2199102550Siwasaki 2200102550SiwasakiAdded warning on boot for Presario 711FR. 2201102550Siwasaki 2202102550SiwasakiSleep improvements (Pavel Machek) 2203102550Siwasaki 2204102550SiwasakiACPI can now be built without CONFIG_PCI enabled. 2205102550Siwasaki 2206102550SiwasakiIA64: Fixed memory map functions (JI Lee) 2207102550Siwasaki 2208102550Siwasaki 2209102550Siwasaki3) iASL Compiler Version X2043: 2210102550Siwasaki 2211114237SnjlAdded support to allow the compiler to be integrated into the MS 2212114237SnjlVC++ development environment for one-button compilation of single 2213114237Snjlfiles or entire projects -- with error-to-source-line mapping. 2214102550Siwasaki 2215104470SiwasakiImplemented support for compile-time constant folding for the 2216104470SiwasakiType3, Type4, and Type5 opcodes first defined in the ACPI 2.0 2217104470Siwasakispecification. This allows the ASL writer to use expressions 2218104470Siwasakiinstead of Integer/Buffer/String constants in terms that must 2219114237Snjlevaluate to constants at compile time and will also simplify the 2220114237Snjlemitted AML in any such sub-expressions that can be folded 2221104470Siwasaki(evaluated at compile-time.) This increases the size of the 2222104470Siwasakicompiler significantly because a portion of the ACPI CA AML 2223104470Siwasakiinterpreter is included within the compiler in order to pre- 2224104470Siwasakievaluate constant expressions. 2225102550Siwasaki 2226114237Snjl 2227102550SiwasakiFixed a problem with the "Unicode" ASL macro that caused the 2228114237Snjlcompiler to fault. (This macro is used in conjunction with the 2229114237Snjl_STR reserved name.) 2230102550Siwasaki 2231114237SnjlImplemented an AML opcode optimization to use the Zero, One, and 2232114237SnjlOnes opcodes where possible to further reduce the size of integer 2233114237Snjlconstants and thus reduce the overall size of the generated AML 2234114237Snjlcode. 2235102550Siwasaki 2236102550SiwasakiImplemented error checking for new reserved terms for ACPI 2237126372Snjlversion 2238126372Snjl2.0A. 2239102550Siwasaki 2240104470SiwasakiImplemented the -qr option to display the current list of ACPI 2241104470Siwasakireserved names known to the compiler. 2242102550Siwasaki 2243104470SiwasakiImplemented the -qc option to display the current list of ASL 2244104470Siwasakioperators that are allowed within constant expressions and can 2245104470Siwasakitherefore be folded at compile time if the operands are 2246104470Siwasakiconstants. 2247102550Siwasaki 2248102550Siwasaki 2249102550Siwasaki4) Documentation 2250102550Siwasaki 2251102550SiwasakiUpdated the Programmer's Reference for new interfaces, data 2252126372Snjltypes, 2253126372Snjland memory allocation model options. 2254102550Siwasaki 2255114237SnjlUpdated the iASL Compiler User Reference to apply new format and 2256114237Snjladd information about new features and options. 2257102550Siwasaki 2258102550Siwasaki---------------------------------------- 2259102550Siwasaki19 April 2002. Summary of changes for this release. 2260102550Siwasaki 2261102550Siwasaki1) ACPI CA Core Subsystem Version 20020419: 2262102550Siwasaki 2263114237SnjlThe source code base for the Core Subsystem has been completely 2264114237Snjlcleaned with PC-lint (FlexLint) for both 32-bit and 64-bit 2265114237Snjlversions. The Lint option files used are included in the 2266114237Snjl/acpi/generate/lint directory. 2267102550Siwasaki 2268102550SiwasakiImplemented enhanced status/error checking across the entire 2269114237SnjlHardware manager subsystem. Any hardware errors (reported from 2270114237Snjlthe OSL) are now bubbled up and will abort a running control 2271114237Snjlmethod. 2272102550Siwasaki 2273114237SnjlFixed a problem where the per-ACPI-table integer width (32 or 64) 2274114237Snjlwas stored only with control method nodes, causing a fault when 2275114237Snjlnon-control method code was executed during table loading. The 2276114237Snjlsolution implemented uses a global variable to indicate table 2277114237Snjlwidth across the entire ACPI subsystem. Therefore, ACPI CA does 2278114237Snjlnot support mixed integer widths across different ACPI tables 2279114237Snjl(DSDT, SSDT). 2280102550Siwasaki 2281114237SnjlFixed a problem where NULL extended fields (X fields) in an ACPI 2282114237Snjl2.0 ACPI FADT caused the table load to fail. Although the 2283114237Snjlexisting ACPI specification is a bit fuzzy on this topic, the new 2284114237Snjlbehavior is to fall back on a ACPI 1.0 field if the corresponding 2285114237SnjlACPI 2.0 X field is zero (even though the table revision 2286126372Snjlindicates 2287126372Snjla full ACPI 2.0 table.) The ACPI specification will be updated 2288126372Snjlto 2289126372Snjlclarify this issue. 2290102550Siwasaki 2291104470SiwasakiFixed a problem with the SystemMemory operation region handler 2292104470Siwasakiwhere memory was always accessed byte-wise even if the AML- 2293104470Siwasakispecified access width was larger than a byte. This caused 2294104470Siwasakiproblems on systems with memory-mapped I/O. Memory is now 2295104470Siwasakiaccessed with the width specified. On systems that do not 2296126372Snjlsupport 2297126372Snjlnon-aligned transfers, a check is made to guarantee proper 2298126372Snjladdress 2299126372Snjlalignment before proceeding in order to avoid an AML-caused 2300126372Snjlalignment fault within the kernel. 2301102550Siwasaki 2302102550Siwasaki 2303114237SnjlFixed a problem with the ExtendedIrq resource where only one byte 2304114237Snjlof the 4-byte Irq field was extracted. 2305102550Siwasaki 2306114237SnjlFixed the AcpiExDigitsNeeded() procedure to support _UID. This 2307114237Snjlfunction was out of date and required a rewrite. 2308114237Snjl 2309102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2310126372Snjlshown 2311126372Snjlbelow. These are the code and data sizes for the acpica.lib 2312126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2313126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 2314126372Snjlversion of the code includes the debug output trace mechanism and 2315126372Snjlhas a larger code and data size. Note that these values will 2316126372Snjlvary 2317126372Snjldepending on the efficiency of the compiler and the compiler 2318126372Snjloptions used during generation. 2319102550Siwasaki 2320102550Siwasaki Previous Release 2321104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 2322104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 2323102550Siwasaki Current Release: 2324104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 2325104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 2326102550Siwasaki 2327102550Siwasaki 2328102550Siwasaki2) Linux 2329102550Siwasaki 2330102550SiwasakiPCI IRQ routing fixes (Dominik Brodowski) 2331102550Siwasaki 2332102550Siwasaki 2333102550Siwasaki3) iASL Compiler Version X2042: 2334102550Siwasaki 2335104470SiwasakiImplemented an additional compile-time error check for a field 2336104470Siwasakiunit whose size + minimum access width would cause a run-time 2337114237Snjlaccess beyond the end-of-region. Previously, only the field size 2338114237Snjlitself was checked. 2339102550Siwasaki 2340104470SiwasakiThe Core subsystem and iASL compiler now share a common parse 2341104470Siwasakiobject in preparation for compile-time evaluation of the type 2342104470Siwasaki3/4/5 ASL operators. 2343102550Siwasaki 2344102550Siwasaki 2345102550Siwasaki---------------------------------------- 2346102550SiwasakiSummary of changes for this release: 03_29_02 2347102550Siwasaki 2348102550Siwasaki1) ACPI CA Core Subsystem Version 20020329: 2349102550Siwasaki 2350104470SiwasakiImplemented support for late evaluation of TermArg operands to 2351114237SnjlBuffer and Package objects. This allows complex expressions to 2352126372Snjlbe 2353126372Snjlused in the declarations of these object types. 2354102550Siwasaki 2355104470SiwasakiFixed an ACPI 1.0 compatibility issue when reading Fields. In 2356126372SnjlACPI 2357126372Snjl1.0, if the field was larger than 32 bits, it was returned as a 2358126372Snjlbuffer - otherwise it was returned as an integer. In ACPI 2.0, 2359126372Snjlthe field is returned as a buffer only if the field is larger 2360126372Snjlthan 2361126372Snjl64 bits. The TableRevision is now considered when making this 2362126372Snjlconversion to avoid incompatibility with existing ASL code. 2363102550Siwasaki 2364104470SiwasakiImplemented logical addressing for AcpiOsGetRootPointer. This 2365114237Snjlallows an RSDP with either a logical or physical address. With 2366114237Snjlthis support, the host OS can now override all ACPI tables with 2367114237Snjlone logical RSDP. Includes implementation of "typed" pointer 2368114237Snjlsupport to allow a common data type for both physical and logical 2369114237Snjlpointers internally. This required a change to the 2370114237SnjlAcpiOsGetRootPointer interface. 2371102550Siwasaki 2372104470SiwasakiImplemented the use of ACPI 2.0 Generic Address Structures for 2373126372Snjlall 2374126372SnjlGPE, Fixed Event, and PM Timer I/O. This allows the use of 2375126372Snjlmemory 2376126372Snjlmapped I/O for these ACPI features. 2377102550Siwasaki 2378102550SiwasakiInitialization now ignores not only non-required tables (All 2379114237Snjltables other than the FADT, FACS, DSDT, and SSDTs), but also does 2380114237Snjlnot validate the table headers of unrecognized tables. 2381102550Siwasaki 2382102550SiwasakiFixed a problem where a notify handler could only be 2383102550Siwasakiinstalled/removed on an object of type Device. All "notify" 2384102550Siwasakiobjects are now supported -- Devices, Processor, Power, and 2385102550SiwasakiThermal. 2386102550Siwasaki 2387114237SnjlRemoved most verbosity from the ACPI_DB_INFO debug level. Only 2388114237Snjlcritical information is returned when this debug level is 2389104470Siwasakienabled. 2390102550Siwasaki 2391102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2392126372Snjlshown 2393126372Snjlbelow. These are the code and data sizes for the acpica.lib 2394126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2395126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 2396126372Snjlversion of the code includes the debug output trace mechanism and 2397126372Snjlhas a larger code and data size. Note that these values will 2398126372Snjlvary 2399126372Snjldepending on the efficiency of the compiler and the compiler 2400126372Snjloptions used during generation. 2401102550Siwasaki 2402102550Siwasaki Previous Release 2403104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 2404104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 2405102550Siwasaki Current Release: 2406104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 2407104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 2408102550Siwasaki 2409102550Siwasaki 2410102550Siwasaki2) Linux: 2411102550Siwasaki 2412114237SnjlThe processor driver (acpi_processor.c) now fully supports ACPI 2413114237Snjl2.0-based processor performance control (e.g. Intel(R) 2414114237SnjlSpeedStep(TM) technology) Note that older laptops that only have 2415114237Snjlthe Intel "applet" interface are not supported through this. The 2416114237Snjl'limit' and 'performance' interface (/proc) are fully functional. 2417114237Snjl[Note that basic policy for controlling performance state 2418114237Snjltransitions will be included in the next version of ospmd.] The 2419114237Snjlidle handler was modified to more aggressively use C2, and PIIX4 2420114237Snjlerrata handling underwent a complete overhaul (big thanks to 2421114237SnjlDominik Brodowski). 2422102550Siwasaki 2423114237SnjlAdded support for ACPI-PCI device binding (acpi_pci_root.c). _ADR- 2424114237Snjlbased devices in the ACPI namespace are now dynamically bound 2425114237Snjl(associated) with their PCI counterparts (e.g. PCI1->01:00.0). 2426114237SnjlThis allows, among other things, ACPI to resolve bus numbers for 2427114237Snjlsubordinate PCI bridges. 2428102550Siwasaki 2429104470SiwasakiEnhanced PCI IRQ routing to get the proper bus number for _PRT 2430104470Siwasakientries defined underneath PCI bridges. 2431102550Siwasaki 2432104470SiwasakiAdded IBM 600E to bad bios list due to invalid _ADR value for 2433104470SiwasakiPIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing. 2434102550Siwasaki 2435114237SnjlIn the process of adding full MADT support (e.g. IOAPIC) for IA32 2436114237Snjl(acpi.c, mpparse.c) -- stay tuned. 2437102550Siwasaki 2438102550SiwasakiAdded back visual differentiation between fixed-feature and 2439114237Snjlcontrol-method buttons in dmesg. Buttons are also subtyped (e.g. 2440114237Snjlbutton/power/PWRF) to simplify button identification. 2441102550Siwasaki 2442114237SnjlWe no longer use -Wno-unused when compiling debug. Please ignore 2443114237Snjlany "_THIS_MODULE defined but not used" messages. 2444102550Siwasaki 2445102550SiwasakiCan now shut down the system using "magic sysrq" key. 2446102550Siwasaki 2447102550Siwasaki 2448102550Siwasaki3) iASL Compiler version 2041: 2449102550Siwasaki 2450104470SiwasakiFixed a problem where conversion errors for hex/octal/decimal 2451104470Siwasakiconstants were not reported. 2452102550Siwasaki 2453102550SiwasakiImplemented a fix for the General Register template Address 2454126372Snjlfield. 2455126372SnjlThis field was 8 bits when it should be 64. 2456102550Siwasaki 2457102550SiwasakiFixed a problem where errors/warnings were no longer being 2458126372Snjlemitted 2459126372Snjlwithin the listing output file. 2460102550Siwasaki 2461114237SnjlImplemented the ACPI 2.0A restriction on ACPI Table Signatures to 2462114237Snjlexactly 4 characters, alphanumeric only. 2463102550Siwasaki 2464102550Siwasaki 2465102550Siwasaki 2466102550Siwasaki 2467102550Siwasaki---------------------------------------- 2468102550SiwasakiSummary of changes for this release: 03_08_02 2469102550Siwasaki 2470102550Siwasaki 2471102550Siwasaki1) ACPI CA Core Subsystem Version 20020308: 2472102550Siwasaki 2473114237SnjlFixed a problem with AML Fields where the use of the "AccessAny" 2474114237Snjlkeyword could cause an interpreter error due to attempting to 2475126372Snjlread 2476126372Snjlor write beyond the end of the parent Operation Region. 2477102550Siwasaki 2478102550SiwasakiFixed a problem in the SystemMemory Operation Region handler 2479126372Snjlwhere 2480126372Snjlan attempt was made to map memory beyond the end of the region. 2481126372SnjlThis was the root cause of the "AE_ERROR" and "AE_NO_MEMORY" 2482126372Snjlerrors on some Linux systems. 2483102550Siwasaki 2484114237SnjlFixed a problem where the interpreter/namespace "search to root" 2485114237Snjlalgorithm was not functioning for some object types. Relaxed the 2486114237Snjlinternal restriction on the search to allow upsearches for all 2487114237Snjlexternal object types as well as most internal types. 2488102550Siwasaki 2489102550Siwasaki 2490102550Siwasaki2) Linux: 2491102550Siwasaki 2492104470SiwasakiWe now use safe_halt() macro versus individual calls to sti | 2493104470Siwasakihlt. 2494102550Siwasaki 2495114237SnjlWriting to the processor limit interface should now work. "echo 2496126372Snjl1" 2497126372Snjlwill increase the limit, 2 will decrease, and 0 will reset to the 2498126372Snjldefault. 2499102550Siwasaki 2500102550Siwasaki 2501102550Siwasaki3) ASL compiler: 2502102550Siwasaki 2503102550SiwasakiFixed segfault on Linux version. 2504102550Siwasaki 2505102550Siwasaki 2506102550Siwasaki---------------------------------------- 2507102550SiwasakiSummary of changes for this release: 02_25_02 2508102550Siwasaki 2509102550Siwasaki1) ACPI CA Core Subsystem: 2510102550Siwasaki 2511102550Siwasaki 2512102550SiwasakiFixed a problem where the GPE bit masks were not initialized 2513102550Siwasakiproperly, causing erratic GPE behavior. 2514102550Siwasaki 2515104470SiwasakiImplemented limited support for multiple calling conventions. 2516126372SnjlThe 2517126372Snjlcode can be generated with either the VPL (variable parameter 2518114237Snjllist, or "C") convention, or the FPL (fixed parameter list, or 2519114237Snjl"Pascal") convention. The core subsystem is about 3.4% smaller 2520114237Snjlwhen generated with FPL. 2521102550Siwasaki 2522102550Siwasaki 2523102550Siwasaki2) Linux 2524102550Siwasaki 2525114237SnjlRe-add some /proc/acpi/event functionality that was lost during 2526114237Snjlthe rewrite 2527102550Siwasaki 2528102550SiwasakiResolved issue with /proc events for fixed-feature buttons 2529126372Snjlshowing 2530126372Snjlup as the system device. 2531102550Siwasaki 2532102550SiwasakiFixed checks on C2/C3 latencies to be inclusive of maximum 2533102550Siwasakivalues. 2534102550Siwasaki 2535114237SnjlReplaced AE_ERRORs in acpi_osl.c with more specific error codes. 2536102550Siwasaki 2537114237SnjlChanged ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi" 2538102550Siwasaki 2539104470SiwasakiFixed limit interface & usage to fix bugs with passive cooling 2540104470Siwasakihysterisis. 2541102550Siwasaki 2542102550SiwasakiRestructured PRT support. 2543102550Siwasaki 2544102550Siwasaki 2545102550Siwasaki---------------------------------------- 2546102550SiwasakiSummary of changes for this label: 02_14_02 2547102550Siwasaki 2548102550Siwasaki 2549102550Siwasaki1) ACPI CA Core Subsystem: 2550102550Siwasaki 2551114237SnjlImplemented support in AcpiLoadTable to allow loading of FACS and 2552114237SnjlFADT tables. 2553102550Siwasaki 2554114237SnjlSuport for the now-obsolete interim 0.71 64-bit ACPI tables has 2555114237Snjlbeen removed. All 64-bit platforms should be migrated to the 2556126372SnjlACPI 2557126372Snjl2.0 tables. The actbl71.h header has been removed from the 2558126372Snjlsource 2559126372Snjltree. 2560102550Siwasaki 2561114237SnjlAll C macros defined within the subsystem have been prefixed with 2562114237Snjl"ACPI_" to avoid collision with other system include files. 2563102550Siwasaki 2564102550SiwasakiRemoved the return value for the two AcpiOsPrint interfaces, 2565126372Snjlsince 2566126372Snjlit is never used and causes lint warnings for ignoring the return 2567126372Snjlvalue. 2568102550Siwasaki 2569104470SiwasakiAdded error checking to all internal mutex acquire and release 2570104470Siwasakicalls. Although a failure from one of these interfaces is 2571104470Siwasakiprobably a fatal system error, these checks will cause the 2572114237Snjlimmediate abort of the currently executing method or interface. 2573102550Siwasaki 2574114237SnjlFixed a problem where the AcpiSetCurrentResources interface could 2575114237Snjlfault. This was a side effect of the deployment of the new 2576126372Snjlmemory 2577126372Snjlallocation model. 2578102550Siwasaki 2579102550SiwasakiFixed a couple of problems with the Global Lock support 2580126372Snjlintroduced 2581126372Snjlin the last major build. The "common" (1.0/2.0) internal FACS 2582126372Snjlwas 2583126372Snjlbeing overwritten with the FACS signature and clobbering the 2584126372SnjlGlobal Lock pointer. Also, the actual firmware FACS was being 2585126372Snjlunmapped after construction of the "common" FACS, preventing 2586126372Snjlaccess to the actual Global Lock field within it. The "common" 2587126372Snjlinternal FACS is no longer installed as an actual ACPI table; it 2588126372Snjlis used simply as a global. 2589102550Siwasaki 2590102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2591126372Snjlshown 2592126372Snjlbelow. These are the code and data sizes for the acpica.lib 2593126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2594126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 2595126372Snjlversion of the code includes the debug output trace mechanism and 2596126372Snjlhas a larger code and data size. Note that these values will 2597126372Snjlvary 2598126372Snjldepending on the efficiency of the compiler and the compiler 2599126372Snjloptions used during generation. 2600102550Siwasaki 2601102550Siwasaki Previous Release (02_07_01) 2602104470Siwasaki Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 2603104470Siwasaki Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 2604102550Siwasaki Current Release: 2605104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 2606104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 2607102550Siwasaki 2608102550Siwasaki 2609102550Siwasaki2) Linux 2610102550Siwasaki 2611102550SiwasakiUpdated Linux-specific code for core macro and OSL interface 2612102550Siwasakichanges described above. 2613102550Siwasaki 2614114237SnjlImproved /proc/acpi/event. It now can be opened only once and has 2615114237Snjlproper poll functionality. 2616102550Siwasaki 2617102550SiwasakiFixed and restructured power management (acpi_bus). 2618102550Siwasaki 2619102550SiwasakiOnly create /proc "view by type" when devices of that class 2620102550Siwasakiexist. 2621102550Siwasaki 2622104470SiwasakiFixed "charging/discharging" bug (and others) in acpi_battery. 2623102550Siwasaki 2624102550SiwasakiImproved thermal zone code. 2625102550Siwasaki 2626102550Siwasaki 2627102550Siwasaki3) ASL Compiler, version X2039: 2628102550Siwasaki 2629114237Snjl 2630114237SnjlImplemented the new compiler restriction on ASL String hex/octal 2631114237Snjlescapes to non-null, ASCII values. An error results if an 2632126372Snjlinvalid 2633126372Snjlvalue is used. (This will require an ACPI 2.0 specification 2634126372Snjlchange.) 2635102550Siwasaki 2636102550SiwasakiAML object labels that are output to the optional C and ASM 2637126372Snjlsource 2638126372Snjlare now prefixed with both the ACPI table signature and table ID 2639126372Snjlto help guarantee uniqueness within a large BIOS project. 2640102550Siwasaki 2641102550Siwasaki 2642102550Siwasaki---------------------------------------- 2643102550SiwasakiSummary of changes for this label: 02_01_02 2644102550Siwasaki 2645102550Siwasaki1) ACPI CA Core Subsystem: 2646102550Siwasaki 2647114237SnjlACPI 2.0 support is complete in the entire Core Subsystem and the 2648114237SnjlASL compiler. All new ACPI 2.0 operators are implemented and all 2649114237Snjlother changes for ACPI 2.0 support are complete. With 2650104470Siwasakisimultaneous code and data optimizations throughout the 2651126372Snjlsubsystem, 2652126372SnjlACPI 2.0 support has been implemented with almost no additional 2653126372Snjlcost in terms of code and data size. 2654102550Siwasaki 2655114237SnjlImplemented a new mechanism for allocation of return buffers. If 2656114237Snjlthe buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will 2657114237Snjlbe allocated on behalf of the caller. Consolidated all return 2658114237Snjlbuffer validation and allocation to a common procedure. Return 2659114237Snjlbuffers will be allocated via the primary OSL allocation 2660126372Snjlinterface 2661126372Snjlsince it appears that a separate pool is not needed by most 2662126372Snjlusers. 2663126372SnjlIf a separate pool is required for these buffers, the caller can 2664126372Snjlstill use the original mechanism and pre-allocate the buffer(s). 2665102550Siwasaki 2666102550SiwasakiImplemented support for string operands within the DerefOf 2667102550Siwasakioperator. 2668102550Siwasaki 2669114237SnjlRestructured the Hardware and Event managers to be table driven, 2670114237Snjlsimplifying the source code and reducing the amount of generated 2671114237Snjlcode. 2672102550Siwasaki 2673102550SiwasakiSplit the common read/write low-level ACPI register bitfield 2674104470Siwasakiprocedure into a separate read and write, simplifying the code 2675104470Siwasakiconsiderably. 2676102550Siwasaki 2677114237SnjlObsoleted the AcpiOsCallocate OSL interface. This interface was 2678114237Snjlused only a handful of times and didn't have enough critical mass 2679114237Snjlfor a separate interface. Replaced with a common calloc 2680126372Snjlprocedure 2681126372Snjlin the core. 2682102550Siwasaki 2683104470SiwasakiFixed a reported problem with the GPE number mapping mechanism 2684104470Siwasakithat allows GPE1 numbers to be non-contiguous with GPE0. 2685114237SnjlReorganized the GPE information and shrunk a large array that was 2686114237Snjloriginally large enough to hold info for all possible GPEs (256) 2687114237Snjlto simply large enough to hold all GPEs up to the largest GPE 2688114237Snjlnumber on the machine. 2689102550Siwasaki 2690114237SnjlFixed a reported problem with resource structure alignment on 64- 2691114237Snjlbit platforms. 2692102550Siwasaki 2693102550SiwasakiChanged the AcpiEnableEvent and AcpiDisableEvent external 2694102550Siwasakiinterfaces to not require any flags for the common case of 2695102550Siwasakienabling/disabling a GPE. 2696102550Siwasaki 2697104470SiwasakiImplemented support to allow a "Notify" on a Processor object. 2698102550Siwasaki 2699114237SnjlMost TBDs in comments within the source code have been resolved 2700114237Snjland eliminated. 2701102550Siwasaki 2702102550SiwasakiFixed a problem in the interpreter where a standalone parent 2703102550Siwasakiprefix (^) was not handled correctly in the interpreter and 2704102550Siwasakidebugger. 2705102550Siwasaki 2706102550SiwasakiRemoved obsolete and unnecessary GPE save/restore code. 2707102550Siwasaki 2708114237SnjlImplemented Field support in the ASL Load operator. This allows 2709126372Snjla 2710126372Snjltable to be loaded from a named field, in addition to loading a 2711114237Snjltable directly from an Operation Region. 2712102550Siwasaki 2713104470SiwasakiImplemented timeout and handle support in the external Global 2714126372SnjlLock 2715126372Snjlinterfaces. 2716102550Siwasaki 2717114237SnjlFixed a problem in the AcpiDump utility where pathnames were no 2718114237Snjllonger being generated correctly during the dump of named 2719102550Siwasakiobjects. 2720102550Siwasaki 2721102550SiwasakiModified the AML debugger to give a full display of if/while 2722102550Siwasakipredicates instead of just one AML opcode at a time. (The 2723102550Siwasakipredicate can have several nested ASL statements.) The old 2724126372Snjlmethod 2725126372Snjlwas confusing during single stepping. 2726102550Siwasaki 2727102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2728126372Snjlshown 2729126372Snjlbelow. These are the code and data sizes for the acpica.lib 2730114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2731114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 2732114237Snjlversion of the code includes the debug output trace mechanism and 2733114237Snjlhas a larger code and data size. Note that these values will 2734126372Snjlvary 2735126372Snjldepending on the efficiency of the compiler and the compiler 2736114237Snjloptions used during generation. 2737102550Siwasaki 2738102550Siwasaki Previous Release (12_18_01) 2739114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 2740114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 2741102550Siwasaki Current Release: 2742114237Snjl Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 2743114237Snjl Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 2744102550Siwasaki 2745102550Siwasaki2) Linux 2746102550Siwasaki 2747104470Siwasaki Implemented fix for PIIX reverse throttling errata (Processor 2748104470Siwasakidriver) 2749102550Siwasaki 2750102550SiwasakiAdded new Limit interface (Processor and Thermal drivers) 2751102550Siwasaki 2752102550SiwasakiNew thermal policy (Thermal driver) 2753102550Siwasaki 2754102550SiwasakiMany updates to /proc 2755102550Siwasaki 2756102550SiwasakiBattery "low" event support (Battery driver) 2757102550Siwasaki 2758104470SiwasakiSupports ACPI PCI IRQ routing (PCI Link and PCI root drivers) 2759102550Siwasaki 2760104470SiwasakiIA32 - IA64 initialization unification, no longer experimental 2761102550Siwasaki 2762102550SiwasakiMenuconfig options redesigned 2763102550Siwasaki 2764102550Siwasaki3) ASL Compiler, version X2037: 2765102550Siwasaki 2766114237SnjlImplemented several new output features to simplify integration 2767126372Snjlof 2768126372SnjlAML code into firmware: 1) Output the AML in C source code with 2769126372Snjllabels for each named ASL object. The original ASL source 2770126372Snjlcode 2771126372Snjlis interleaved as C comments. 2) Output the AML in ASM source 2772126372Snjlcode 2773126372Snjlwith labels and interleaved ASL source. 3) Output the AML in 2774126372Snjlraw hex table form, in either C or ASM. 2775102550Siwasaki 2776102550SiwasakiImplemented support for optional string parameters to the 2777102550SiwasakiLoadTable operator. 2778102550Siwasaki 2779104470SiwasakiCompleted support for embedded escape sequences within string 2780114237Snjlliterals. The compiler now supports all single character escapes 2781114237Snjlas well as the Octal and Hex escapes. Note: the insertion of a 2782114237Snjlnull byte into a string literal (via the hex/octal escape) causes 2783114237Snjlthe string to be immediately terminated. A warning is issued. 2784102550Siwasaki 2785104470SiwasakiFixed a problem where incorrect AML was generated for the case 2786104470Siwasakiwhere an ASL namepath consists of a single parent prefix ( 2787102550Siwasaki 2788102550Siwasaki) with no trailing name segments. 2789102550Siwasaki 2790102550SiwasakiThe compiler has been successfully generated with a 64-bit C 2791102550Siwasakicompiler. 2792102550Siwasaki 2793102550Siwasaki 2794102550Siwasaki 2795102550Siwasaki 2796102550Siwasaki---------------------------------------- 2797102550SiwasakiSummary of changes for this label: 12_18_01 2798102550Siwasaki 2799102550Siwasaki1) Linux 2800102550Siwasaki 2801114237SnjlEnhanced blacklist with reason and severity fields. Any table's 2802114237Snjlsignature may now be used to identify a blacklisted system. 2803102550Siwasaki 2804114237SnjlCall _PIC control method to inform the firmware which interrupt 2805114237Snjlmodel the OS is using. Turn on any disabled link devices. 2806102550Siwasaki 2807102550SiwasakiCleaned up busmgr /proc error handling (Andreas Dilger) 2808102550Siwasaki 2809102550Siwasaki 2) ACPI CA Core Subsystem: 2810102550Siwasaki 2811104470SiwasakiImplemented ACPI 2.0 semantics for the "Break" operator (Exit 2812126372Snjlfrom 2813126372Snjlwhile loop) 2814102550Siwasaki 2815102550SiwasakiCompleted implementation of the ACPI 2.0 "Continue", 2816102550Siwasaki"ConcatenateResTemplate", "DataTableRegion", and "LoadTable" 2817104470Siwasakioperators. All new ACPI 2.0 operators are now implemented in 2818126372Snjlboth 2819126372Snjlthe ASL compiler and the AML interpreter. The only remaining 2820126372SnjlACPI 2821126372Snjl2.0 task is support for the String data type in the DerefOf 2822126372Snjloperator. Fixed a problem with AcquireMutex where the status 2823126372Snjlcode 2824126372Snjlwas lost if the caller had to actually wait for the mutex. 2825102550Siwasaki 2826104470SiwasakiIncreased the maximum ASL Field size from 64K bits to 4G bits. 2827102550Siwasaki 2828114237SnjlCompleted implementation of the external Global Lock interfaces - 2829126372Snjl- 2830126372SnjlAcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and 2831126372SnjlHandler parameters were added. 2832102550Siwasaki 2833102550SiwasakiCompleted another pass at removing warnings and issues when 2834114237Snjlcompiling with 64-bit compilers. The code now compiles cleanly 2835114237Snjlwith the Intel 64-bit C/C++ compiler. Most notably, the pointer 2836114237Snjladd and subtract (diff) macros have changed considerably. 2837102550Siwasaki 2838114237SnjlCreated and deployed a new ACPI_SIZE type that is 64-bits wide on 2839114237Snjl64-bit platforms, 32-bits on all others. This type is used 2840104470Siwasakiwherever memory allocation and/or the C sizeof() operator is 2841126372Snjlused, 2842126372Snjland affects the OSL memory allocation interfaces AcpiOsAllocate 2843126372Snjland AcpiOsCallocate. 2844102550Siwasaki 2845102550SiwasakiImplemented sticky user breakpoints in the AML debugger. 2846102550Siwasaki 2847102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2848126372Snjlshown 2849126372Snjlbelow. These are the code and data sizes for the acpica.lib 2850114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2851114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 2852114237Snjlversion of the code includes the debug output trace mechanism and 2853114237Snjlhas a larger code and data size. Note that these values will vary 2854114237Snjldepending on the efficiency of the compiler and the compiler 2855114237Snjloptions used during generation. 2856102550Siwasaki 2857102550Siwasaki Previous Release (12_05_01) 2858114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 2859114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 2860102550Siwasaki Current Release: 2861114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 2862114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 2863102550Siwasaki 2864102550Siwasaki 3) ASL Compiler, version X2034: 2865102550Siwasaki 2866114237SnjlNow checks for (and generates an error if detected) the use of a 2867114237SnjlBreak or Continue statement without an enclosing While statement. 2868102550Siwasaki 2869102550SiwasakiSuccessfully generated the compiler with the Intel 64-bit C 2870102550Siwasakicompiler. 2871102550Siwasaki 2872102550Siwasaki ---------------------------------------- 2873102550SiwasakiSummary of changes for this label: 12_05_01 2874102550Siwasaki 2875102550Siwasaki 1) ACPI CA Core Subsystem: 2876102550Siwasaki 2877102550SiwasakiThe ACPI 2.0 CopyObject operator is fully implemented. This 2878104470Siwasakioperator creates a new copy of an object (and is also used to 2879104470Siwasakibypass the "implicit conversion" mechanism of the Store 2880102550Siwasakioperator.) 2881102550Siwasaki 2882102550SiwasakiThe ACPI 2.0 semantics for the SizeOf operator are fully 2883102550Siwasakiimplemented. The change is that performing a SizeOf on a 2884114237Snjlreference object causes an automatic dereference of the object to 2885114237Snjltha actual value before the size is evaluated. This behavior was 2886114237Snjlundefined in ACPI 1.0. 2887102550Siwasaki 2888114237SnjlThe ACPI 2.0 semantics for the Extended IRQ resource descriptor 2889114237Snjlhave been implemented. The interrupt polarity and mode are now 2890114237Snjlindependently set. 2891102550Siwasaki 2892114237SnjlFixed a problem where ASL Constants (Zero, One, Ones, Revision) 2893114237Snjlappearing in Package objects were not properly converted to 2894114237Snjlintegers when the internal Package was converted to an external 2895114237Snjlobject (via the AcpiEvaluateObject interface.) 2896102550Siwasaki 2897114237SnjlFixed a problem with the namespace object deletion mechanism for 2898114237Snjlobjects created by control methods. There were two parts to this 2899114237Snjlproblem: 1) Objects created during the initialization phase 2900126372Snjlmethod 2901126372Snjlparse were not being deleted, and 2) The object owner ID 2902126372Snjlmechanism 2903126372Snjlto track objects was broken. 2904102550Siwasaki 2905114237SnjlFixed a problem where the use of the ASL Scope operator within a 2906114237Snjlcontrol method would result in an invalid opcode exception. 2907102550Siwasaki 2908114237SnjlFixed a problem introduced in the previous label where the buffer 2909114237Snjllength required for the _PRT structure was not being returned 2910114237Snjlcorrectly. 2911102550Siwasaki 2912102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2913126372Snjlshown 2914126372Snjlbelow. These are the code and data sizes for the acpica.lib 2915114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2916114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 2917114237Snjlversion of the code includes the debug output trace mechanism and 2918114237Snjlhas a larger code and data size. Note that these values will 2919126372Snjlvary 2920126372Snjldepending on the efficiency of the compiler and the compiler 2921114237Snjloptions used during generation. 2922102550Siwasaki 2923102550Siwasaki Previous Release (11_20_01) 2924114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 2925114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 2926102550Siwasaki 2927102550Siwasaki Current Release: 2928114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 2929114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 2930102550Siwasaki 2931102550Siwasaki 2) Linux: 2932102550Siwasaki 2933102550SiwasakiUpdated all files to apply cleanly against 2.4.16. 2934102550Siwasaki 2935104470SiwasakiAdded basic PCI Interrupt Routing Table (PRT) support for IA32 2936114237Snjl(acpi_pci.c), and unified the PRT code for IA32 and IA64. This 2937114237Snjlversion supports both static and dyanmic PRT entries, but dynamic 2938114237Snjlentries are treated as if they were static (not yet 2939114237Snjlreconfigurable). Architecture- specific code to use this data is 2940114237Snjlabsent on IA32 but should be available shortly. 2941102550Siwasaki 2942114237SnjlChanged the initialization sequence to start the ACPI interpreter 2943114237Snjl(acpi_init) prior to initialization of the PCI driver (pci_init) 2944114237Snjlin init/main.c. This ordering is required to support PRT and 2945114237Snjlfacilitate other (future) enhancement. A side effect is that the 2946114237SnjlACPI bus driver and certain device drivers can no longer be 2947126372Snjlloaded 2948126372Snjlas modules. 2949102550Siwasaki 2950104470SiwasakiModified the 'make menuconfig' options to allow PCI Interrupt 2951104470SiwasakiRouting support to be included without the ACPI Bus and other 2952104470Siwasakidevice drivers. 2953102550Siwasaki 2954102550Siwasaki 3) ASL Compiler, version X2033: 2955102550Siwasaki 2956102550SiwasakiFixed some issues with the use of the new CopyObject and 2957102550SiwasakiDataTableRegion operators. Both are fully functional. 2958102550Siwasaki 2959102550Siwasaki ---------------------------------------- 2960102550SiwasakiSummary of changes for this label: 11_20_01 2961102550Siwasaki 2962102550Siwasaki 20 November 2001. Summary of changes for this release. 2963102550Siwasaki 2964102550Siwasaki 1) ACPI CA Core Subsystem: 2965102550Siwasaki 2966104470SiwasakiUpdated Index support to match ACPI 2.0 semantics. Storing a 2967104470SiwasakiInteger, String, or Buffer to an Index of a Buffer will store 2968126372Snjlonly 2969126372Snjlthe least-significant byte of the source to the Indexed buffer 2970126372Snjlbyte. Multiple writes are not performed. 2971102550Siwasaki 2972104470SiwasakiFixed a problem where the access type used in an AccessAs ASL 2973104470Siwasakioperator was not recorded correctly into the field object. 2974102550Siwasaki 2975102550SiwasakiFixed a problem where ASL Event objects were created in a 2976114237Snjlsignalled state. Events are now created in an unsignalled state. 2977102550Siwasaki 2978114237SnjlThe internal object cache is now purged after table loading and 2979114237Snjlinitialization to reduce the use of dynamic kernel memory -- on 2980114237Snjlthe assumption that object use is greatest during the parse phase 2981114237Snjlof the entire table (versus the run-time use of individual 2982126372Snjlcontrol 2983126372Snjlmethods.) 2984102550Siwasaki 2985102550SiwasakiACPI 2.0 variable-length packages are now fully operational. 2986102550Siwasaki 2987104470SiwasakiCode and Data Size: Code and Data optimizations have permitted 2988126372Snjlnew 2989126372Snjlfeature development with an actual reduction in the library size. 2990126372SnjlCurrent core subsystem library sizes are shown below. These are 2991126372Snjlthe code and data sizes for the acpica.lib produced by the 2992126372SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 2993126372Snjlinclude 2994126372Snjlany ACPI driver or OSPM code. The debug version of the code 2995126372Snjlincludes the debug output trace mechanism and has a larger code 2996126372Snjland data size. Note that these values will vary depending on the 2997126372Snjlefficiency of the compiler and the compiler options used during 2998126372Snjlgeneration. 2999102550Siwasaki 3000102550Siwasaki Previous Release (11_09_01): 3001114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 3002114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 3003102550Siwasaki 3004102550Siwasaki Current Release: 3005114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 3006114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 3007102550Siwasaki 3008102550Siwasaki 2) Linux: 3009102550Siwasaki 3010114237SnjlEnhanced the ACPI boot-time initialization code to allow the use 3011114237Snjlof Local APIC tables for processor enumeration on IA-32, and to 3012114237Snjlpave the way for a fully MPS-free boot (on SMP systems) in the 3013114237Snjlnear future. This functionality replaces 3014114237Snjlarch/i386/kernel/acpitables.c, which was introduced in an earlier 3015114237Snjl2.4.15-preX release. To enable this feature you must add 3016114237Snjl"acpi_boot=on" to the kernel command line -- see the help entry 3017114237Snjlfor CONFIG_ACPI_BOOT for more information. An IA-64 release is 3018126372Snjlin 3019126372Snjlthe works... 3020102550Siwasaki 3021114237SnjlRestructured the configuration options to allow boot-time table 3022114237Snjlparsing support without inclusion of the ACPI Interpreter (and 3023114237Snjlother) code. 3024102550Siwasaki 3025102550SiwasakiNOTE: This release does not include fixes for the reported 3026126372Snjlevents, 3027126372Snjlpower-down, and thermal passive cooling issues (coming soon). 3028102550Siwasaki 3029102550Siwasaki 3) ASL Compiler: 3030102550Siwasaki 3031114237SnjlAdded additional typechecking for Fields within restricted access 3032114237SnjlOperation Regions. All fields within EC and CMOS regions must be 3033114237Snjldeclared with ByteAcc. All fields withing SMBus regions must be 3034114237Snjldeclared with the BufferAcc access type. 3035102550Siwasaki 3036114237SnjlFixed a problem where the listing file output of control methods 3037114237Snjlno longer interleaved the actual AML code with the ASL source 3038114237Snjlcode. 3039102550Siwasaki 3040102550Siwasaki 3041102550Siwasaki 3042102550Siwasaki---------------------------------------- 3043102550SiwasakiSummary of changes for this label: 11_09_01 3044102550Siwasaki 3045102550Siwasaki1) ACPI CA Core Subsystem: 3046102550Siwasaki 3047114237SnjlImplemented ACPI 2.0-defined support for writes to fields with a 3048114237SnjlBuffer, String, or Integer source operand that is smaller than 3049126372Snjlthe 3050126372Snjltarget field. In these cases, the source operand is zero-extended 3051126372Snjlto fill the target field. 3052102550Siwasaki 3053104470SiwasakiFixed a problem where a Field starting bit offset (within the 3054104470Siwasakiparent operation region) was calculated incorrectly if the 3055104470Siwasakialignment of the field differed from the access width. This 3056114237Snjlaffected CreateWordField, CreateDwordField, CreateQwordField, and 3057114237Snjlpossibly other fields that use the "AccessAny" keyword. 3058102550Siwasaki 3059114237SnjlFixed a problem introduced in the 11_02_01 release where indirect 3060114237Snjlstores through method arguments did not operate correctly. 3061102550Siwasaki 3062102550Siwasaki2) Linux: 3063102550Siwasaki 3064102550SiwasakiImplemented boot-time ACPI table parsing support 3065114237Snjl(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code 3066114237Snjlfacilitates the use of ACPI tables (e.g. MADT, SRAT) rather than 3067114237Snjllegacy BIOS interfaces (e.g. MPS) for the configuration of system 3068114237Snjlprocessors, memory, and interrupts during setup_arch(). Note 3069126372Snjlthat 3070126372Snjlthis patch does not include the required architecture-specific 3071126372Snjlchanges required to apply this information -- subsequent patches 3072126372Snjlwill be posted for both IA32 and IA64 to achieve this. 3073102550Siwasaki 3074114237SnjlAdded low-level sleep support for IA32 platforms, courtesy of Pat 3075114237SnjlMochel. This allows IA32 systems to transition to/from various 3076114237Snjlsleeping states (e.g. S1, S3), although the lack of a centralized 3077114237Snjldriver model and power-manageable drivers will prevent its 3078114237Snjl(successful) use on most systems. 3079102550Siwasaki 3080114237SnjlRevamped the ACPI 'menuconfig' layout: created new "ACPI Support" 3081114237Snjlsubmenu, unified IA32 and IA64 options, added new "Boot using 3082126372SnjlACPI 3083126372Snjltables" option, etc. 3084102550Siwasaki 3085114237SnjlIncreased the default timeout for the EC driver from 1ms to 10ms 3086114237Snjl(1000 cycles of 10us) to try to address AE_TIME errors during EC 3087114237Snjltransactions. 3088102550Siwasaki 3089102550Siwasaki ---------------------------------------- 3090102550SiwasakiSummary of changes for this label: 11_02_01 3091102550Siwasaki 3092102550Siwasaki1) ACPI CA Core Subsystem: 3093102550Siwasaki 3094102550SiwasakiACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access 3095102550Siwasaki(QWordAcc keyword). All ACPI 2.0 64-bit support is now 3096102550Siwasakiimplemented. 3097102550Siwasaki 3098114237SnjlOSL Interfaces: Several of the OSL (AcpiOs*) interfaces required 3099114237Snjlchanges to support ACPI 2.0 Qword field access. Read/Write 3100114237SnjlPciConfiguration(), Read/Write Memory(), and Read/Write Port() 3101126372Snjlnow 3102126372Snjlaccept an ACPI_INTEGER (64 bits) as the value parameter. Also, 3103126372Snjlthe value parameter for the address space handler interface is 3104126372Snjlnow 3105126372Snjlan ACPI_INTEGER. OSL implementations of these interfaces must 3106126372Snjlnow 3107126372Snjlhandle the case where the Width parameter is 64. 3108102550Siwasaki 3109104470SiwasakiIndex Fields: Fixed a problem where unaligned bit assembly and 3110104470Siwasakidisassembly for IndexFields was not supported correctly. 3111102550Siwasaki 3112102550SiwasakiIndex and Bank Fields: Nested Index and Bank Fields are now 3113104470Siwasakisupported. During field access, a check is performed to ensure 3114114237Snjlthat the value written to an Index or Bank register is not out of 3115114237Snjlthe range of the register. The Index (or Bank) register is 3116114237Snjlwritten before each access to the field data. Future support will 3117114237Snjlinclude allowing individual IndexFields to be wider than the 3118114237SnjlDataRegister width. 3119102550Siwasaki 3120114237SnjlFields: Fixed a problem where the AML interpreter was incorrectly 3121114237Snjlattempting to write beyond the end of a Field/OpRegion. This was 3122114237Snjla boundary case that occurred when a DWORD field was written to a 3123114237SnjlBYTE access OpRegion, forcing multiple writes and causing the 3124114237Snjlinterpreter to write one datum too many. 3125102550Siwasaki 3126102550SiwasakiFields: Fixed a problem with Field/OpRegion access where the 3127114237Snjlstarting bit address of a field was incorrectly calculated if the 3128114237Snjlcurrent access type was wider than a byte (WordAcc, DwordAcc, or 3129114237SnjlQwordAcc). 3130102550Siwasaki 3131104470SiwasakiFields: Fixed a problem where forward references to individual 3132104470SiwasakiFieldUnits (individual Field names within a Field definition) 3133126372Snjlwere 3134126372Snjlnot resolved during the AML table load. 3135102550Siwasaki 3136104470SiwasakiFields: Fixed a problem where forward references from a Field 3137104470Siwasakidefinition to the parent Operation Region definition were not 3138104470Siwasakiresolved during the AML table load. 3139104470Siwasaki 3140114237SnjlFields: Duplicate FieldUnit names within a scope are now detected 3141114237Snjlduring AML table load. 3142102550Siwasaki 3143102550SiwasakiAcpi Interfaces: Fixed a problem where the AcpiGetName() 3144126372Snjlinterface 3145126372Snjlreturned an incorrect name for the root node. 3146102550Siwasaki 3147104470SiwasakiCode and Data Size: Code and Data optimizations have permitted 3148126372Snjlnew 3149126372Snjlfeature development with an actual reduction in the library size. 3150126372SnjlCurrent core subsystem library sizes are shown below. These are 3151126372Snjlthe code and data sizes for the acpica.lib produced by the 3152126372SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 3153126372Snjlinclude 3154126372Snjlany ACPI driver or OSPM code. The debug version of the code 3155126372Snjlincludes the debug output trace mechanism and has a larger code 3156126372Snjland data size. Note that these values will vary depending on the 3157126372Snjlefficiency of the compiler and the compiler options used during 3158126372Snjlgeneration. 3159102550Siwasaki 3160102550Siwasaki Previous Release (10_18_01): 3161114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 3162114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 3163102550Siwasaki 3164102550Siwasaki Current Release: 3165114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 3166114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 3167102550Siwasaki 3168102550Siwasaki 2) Linux: 3169102550Siwasaki 3170102550SiwasakiImproved /proc processor output (Pavel Machek) Re-added 3171102550SiwasakiMODULE_LICENSE("GPL") to all modules. 3172102550Siwasaki 3173102550Siwasaki 3) ASL Compiler version X2030: 3174102550Siwasaki 3175104470SiwasakiDuplicate FieldUnit names within a scope are now detected and 3176104470Siwasakiflagged as errors. 3177102550Siwasaki 3178102550Siwasaki 4) Documentation: 3179102550Siwasaki 3180104470SiwasakiProgrammer Reference updated to reflect OSL and address space 3181104470Siwasakihandler interface changes described above. 3182102550Siwasaki 3183102550Siwasaki---------------------------------------- 3184102550SiwasakiSummary of changes for this label: 10_18_01 3185102550Siwasaki 3186102550SiwasakiACPI CA Core Subsystem: 3187102550Siwasaki 3188102550SiwasakiFixed a problem with the internal object reference count 3189126372Snjlmechanism 3190126372Snjlthat occasionally caused premature object deletion. This resolves 3191126372Snjlall of the outstanding problem reports where an object is deleted 3192126372Snjlin the middle of an interpreter evaluation. Although this 3193126372Snjlproblem 3194126372Snjlonly showed up in rather obscure cases, the solution to the 3195126372Snjlproblem involved an adjustment of all reference counts involving 3196126372Snjlobjects attached to namespace nodes. 3197102550Siwasaki 3198102550SiwasakiFixed a problem with Field support in the interpreter where 3199114237Snjlwriting to an aligned field whose length is an exact multiple (2 3200114237Snjlor greater) of the field access granularity would cause an 3201126372Snjlattempt 3202126372Snjlto write beyond the end of the field. 3203102550Siwasaki 3204102550SiwasakiThe top level AML opcode execution functions within the 3205102550Siwasakiinterpreter have been renamed with a more meaningful and 3206102550Siwasakiconsistent naming convention. The modules exmonad.c and 3207102550Siwasakiexdyadic.c were eliminated. New modules are exoparg1.c, 3208102550Siwasakiexoparg2.c, exoparg3.c, and exoparg6.c. 3209102550Siwasaki 3210114237SnjlSupport for the ACPI 2.0 "Mid" ASL operator has been implemented. 3211102550Siwasaki 3212114237SnjlFixed a problem where the AML debugger was causing some internal 3213114237Snjlobjects to not be deleted during subsystem termination. 3214102550Siwasaki 3215104470SiwasakiFixed a problem with the external AcpiEvaluateObject interface 3216104470Siwasakiwhere the subsystem would fault if the named object to be 3217104470Siwasakievaluated refered to a constant such as Zero, Ones, etc. 3218102550Siwasaki 3219102550SiwasakiFixed a problem with IndexFields and BankFields where the 3220114237Snjlsubsystem would fault if the index, data, or bank registers were 3221114237Snjlnot defined in the same scope as the field itself. 3222102550Siwasaki 3223104470SiwasakiAdded printf format string checking for compilers that support 3224104470Siwasakithis feature. Corrected more than 50 instances of issues with 3225104470Siwasakiformat specifiers within invocations of ACPI_DEBUG_PRINT 3226104470Siwasakithroughout the core subsystem code. 3227102550Siwasaki 3228104470SiwasakiThe ASL "Revision" operator now returns the ACPI support level 3229104470Siwasakiimplemented in the core - the value "2" since the ACPI 2.0 3230126372Snjlsupport 3231126372Snjlis more than 50% implemented. 3232102550Siwasaki 3233114237SnjlEnhanced the output of the AML debugger "dump namespace" command 3234114237Snjlto output in a more human-readable form. 3235102550Siwasaki 3236114237SnjlCurrent core subsystem library code sizes are shown below. These 3237114237Snjlare the code and data sizes for the acpica.lib produced by the 3238114237SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 3239126372Snjlinclude 3240126372Snjlany ACPI driver or OSPM code. The debug version of the code 3241126372Snjlincludes the full debug trace mechanism -- leading to a much 3242114237Snjllarger code and data size. Note that these values will vary 3243114237Snjldepending on the efficiency of the compiler and the compiler 3244114237Snjloptions used during generation. 3245102550Siwasaki 3246102550Siwasaki Previous Label (09_20_01): 3247114237Snjl Non-Debug Version: 65K Code, 5K Data, 70K Total 3248114237Snjl Debug Version: 138K Code, 58K Data, 196K Total 3249102550Siwasaki 3250102550Siwasaki This Label: 3251102550Siwasaki 3252114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 3253114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 3254114237Snjl 3255102550SiwasakiLinux: 3256102550Siwasaki 3257104470SiwasakiImplemented a "Bad BIOS Blacklist" to track machines that have 3258104470Siwasakiknown ASL/AML problems. 3259102550Siwasaki 3260102550SiwasakiEnhanced the /proc interface for the thermal zone driver and 3261126372Snjladded 3262126372Snjlsupport for _HOT (the critical suspend trip point). The 'info' 3263126372Snjlfile now includes threshold/policy information, and allows 3264126372Snjlsetting 3265126372Snjlof _SCP (cooling preference) and _TZP (polling frequency) values 3266126372Snjlto the 'info' file. Examples: "echo tzp=5 > info" sets the 3267126372Snjlpolling 3268126372Snjlfrequency to 5 seconds, and "echo scp=1 > info" sets the cooling 3269126372Snjlpreference to the passive/quiet mode (if supported by the ASL). 3270102550Siwasaki 3271104470SiwasakiImplemented a workaround for a gcc bug that resuted in an OOPs 3272104470Siwasakiwhen loading the control method battery driver. 3273102550Siwasaki 3274102550Siwasaki ---------------------------------------- 3275102550SiwasakiSummary of changes for this label: 09_20_01 3276102550Siwasaki 3277102550Siwasaki ACPI CA Core Subsystem: 3278102550Siwasaki 3279104470SiwasakiThe AcpiEnableEvent and AcpiDisableEvent interfaces have been 3280104470Siwasakimodified to allow individual GPE levels to be flagged as wake- 3281114237Snjlenabled (i.e., these GPEs are to remain enabled when the platform 3282114237Snjlsleeps.) 3283102550Siwasaki 3284104470SiwasakiThe AcpiEnterSleepState and AcpiLeaveSleepState interfaces now 3285104470Siwasakisupport wake-enabled GPEs. This means that upon entering the 3286104470Siwasakisleep state, all GPEs that are not wake-enabled are disabled. 3287104470SiwasakiWhen leaving the sleep state, these GPEs are reenabled. 3288102550Siwasaki 3289114237SnjlA local double-precision divide/modulo module has been added to 3290114237Snjlenhance portability to OS kernels where a 64-bit math library is 3291114237Snjlnot available. The new module is "utmath.c". 3292102550Siwasaki 3293104470SiwasakiSeveral optimizations have been made to reduce the use of CPU 3294114237Snjlstack. Originally over 2K, the maximum stack usage is now below 3295114237Snjl2K at 1860 bytes (1.82k) 3296102550Siwasaki 3297114237SnjlFixed a problem with the AcpiGetFirmwareTable interface where the 3298114237Snjlroot table pointer was not mapped into a logical address 3299104470Siwasakiproperly. 3300102550Siwasaki 3301104470SiwasakiFixed a problem where a NULL pointer was being dereferenced in 3302126372Snjlthe 3303126372Snjlinterpreter code for the ASL Notify operator. 3304102550Siwasaki 3305102550SiwasakiFixed a problem where the use of the ASL Revision operator 3306114237Snjlreturned an error. This operator now returns the current version 3307114237Snjlof the ACPI CA core subsystem. 3308102550Siwasaki 3309114237SnjlFixed a problem where objects passed as control method parameters 3310114237Snjlto AcpiEvaluateObject were always deleted at method termination. 3311114237SnjlHowever, these objects may end up being stored into the namespace 3312114237Snjlby the called method. The object reference count mechanism was 3313114237Snjlapplied to these objects instead of a force delete. 3314102550Siwasaki 3315114237SnjlFixed a problem where static strings or buffers (contained in the 3316114237SnjlAML code) that are declared as package elements within the ASL 3317114237Snjlcode could cause a fault because the interpreter would attempt to 3318114237Snjldelete them. These objects are now marked with the "static 3319114237Snjlobject" flag to prevent any attempt to delete them. 3320102550Siwasaki 3321114237SnjlImplemented an interpreter optimization to use operands directly 3322114237Snjlfrom the state object instead of extracting the operands to local 3323114237Snjlvariables. This reduces stack use and code size, and improves 3324114237Snjlperformance. 3325102550Siwasaki 3326102550SiwasakiThe module exxface.c was eliminated as it was an unnecessary 3327126372Snjlextra 3328126372Snjllayer of code. 3329102550Siwasaki 3330114237SnjlCurrent core subsystem library code sizes are shown below. These 3331114237Snjlare the code and data sizes for the acpica.lib produced by the 3332114237SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 3333126372Snjlinclude 3334126372Snjlany ACPI driver or OSPM code. The debug version of the code 3335126372Snjlincludes the full debug trace mechanism -- leading to a much 3336114237Snjllarger code and data size. Note that these values will vary 3337114237Snjldepending on the efficiency of the compiler and the compiler 3338114237Snjloptions used during generation. 3339102550Siwasaki 3340102550Siwasaki Non-Debug Version: 65K Code, 5K Data, 70K Total 3341114237Snjl(Previously 69K) Debug Version: 138K Code, 58K Data, 196K 3342114237SnjlTotal (Previously 195K) 3343102550Siwasaki 3344102550SiwasakiLinux: 3345102550Siwasaki 3346114237SnjlSupport for ACPI 2.0 64-bit integers has been added. All ACPI 3347114237SnjlInteger objects are now 64 bits wide 3348102550Siwasaki 3349114237SnjlAll Acpi data types and structures are now in lower case. Only 3350114237SnjlAcpi macros are upper case for differentiation. 3351102550Siwasaki 3352102550Siwasaki Documentation: 3353102550Siwasaki 3354102550SiwasakiChanges to the external interfaces as described above. 3355102550Siwasaki 3356102550Siwasaki ---------------------------------------- 3357102550SiwasakiSummary of changes for this label: 08_31_01 3358102550Siwasaki 3359102550Siwasaki ACPI CA Core Subsystem: 3360102550Siwasaki 3361114237SnjlA bug with interpreter implementation of the ASL Divide operator 3362114237Snjlwas found and fixed. The implicit function return value (not the 3363114237Snjlexplicit store operands) was returning the remainder instead of 3364114237Snjlthe quotient. This was a longstanding bug and it fixes several 3365114237Snjlknown outstanding issues on various platforms. 3366102550Siwasaki 3367104470SiwasakiThe ACPI_DEBUG_PRINT and function trace entry/exit macros have 3368104470Siwasakibeen further optimized for size. There are 700 invocations of 3369126372Snjlthe 3370126372SnjlDEBUG_PRINT macro alone, so each optimization reduces the size of 3371126372Snjlthe debug version of the subsystem significantly. 3372102550Siwasaki 3373114237SnjlA stack trace mechanism has been implemented. The maximum stack 3374114237Snjlusage is about 2K on 32-bit platforms. The debugger command 3375126372Snjl"stat 3376126372Snjlstack" will display the current maximum stack usage. 3377102550Siwasaki 3378114237SnjlAll public symbols and global variables within the subsystem are 3379114237Snjlnow prefixed with the string "Acpi". This keeps all of the 3380114237Snjlsymbols grouped together in a kernel map, and avoids conflicts 3381114237Snjlwith other kernel subsystems. 3382102550Siwasaki 3383114237SnjlMost of the internal fixed lookup tables have been moved into the 3384114237Snjlcode segment via the const operator. 3385102550Siwasaki 3386104470SiwasakiSeveral enhancements have been made to the interpreter to both 3387104470Siwasakireduce the code size and improve performance. 3388102550Siwasaki 3389114237SnjlCurrent core subsystem library code sizes are shown below. These 3390114237Snjlare the code and data sizes for the acpica.lib produced by the 3391114237SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 3392126372Snjlinclude 3393126372Snjlany ACPI driver or OSPM code. The debug version of the code 3394126372Snjlincludes the full debug trace mechanism which contains over 700 3395126372Snjlinvocations of the DEBUG_PRINT macro, 500 function entry macro 3396126372Snjlinvocations, and over 900 function exit macro invocations -- 3397126372Snjlleading to a much larger code and data size. Note that these 3398114237Snjlvalues will vary depending on the efficiency of the compiler and 3399114237Snjlthe compiler options used during generation. 3400102550Siwasaki 3401102550Siwasaki Non-Debug Version: 64K Code, 5K Data, 69K Total 3402102550SiwasakiDebug Version: 137K Code, 58K Data, 195K Total 3403102550Siwasaki 3404102550Siwasaki Linux: 3405102550Siwasaki 3406104470SiwasakiImplemented wbinvd() macro, pending a kernel-wide definition. 3407102550Siwasaki 3408102550SiwasakiFixed /proc/acpi/event to handle poll() and short reads. 3409102550Siwasaki 3410102550Siwasaki ASL Compiler, version X2026: 3411102550Siwasaki 3412104470SiwasakiFixed a problem introduced in the previous label where the AML 3413104470Siwasakicode emitted for package objects produced packages with zero 3414104470Siwasakilength. 3415102550Siwasaki 3416102550Siwasaki ---------------------------------------- 3417102550SiwasakiSummary of changes for this label: 08_16_01 3418102550Siwasaki 3419102550SiwasakiACPI CA Core Subsystem: 3420102550Siwasaki 3421114237SnjlThe following ACPI 2.0 ASL operators have been implemented in the 3422114237SnjlAML interpreter (These are already supported by the Intel ASL 3423114237Snjlcompiler): ToDecimalString, ToHexString, ToString, ToInteger, 3424126372Snjland 3425126372SnjlToBuffer. Support for 64-bit AML constants is implemented in the 3426126372SnjlAML parser, debugger, and disassembler. 3427102550Siwasaki 3428114237SnjlThe internal memory tracking mechanism (leak detection code) has 3429114237Snjlbeen upgraded to reduce the memory overhead (a separate tracking 3430114237Snjlblock is no longer allocated for each memory allocation), and now 3431114237Snjlsupports all of the internal object caches. 3432102550Siwasaki 3433114237SnjlThe data structures and code for the internal object caches have 3434114237Snjlbeen coelesced and optimized so that there is a single cache and 3435114237Snjlmemory list data structure and a single group of functions that 3436114237Snjlimplement generic cache management. This has reduced the code 3437114237Snjlsize in both the debug and release versions of the subsystem. 3438102550Siwasaki 3439102550SiwasakiThe DEBUG_PRINT macro(s) have been optimized for size and 3440126372Snjlreplaced 3441126372Snjlby ACPI_DEBUG_PRINT. The syntax for this macro is slightly 3442126372Snjldifferent, because it generates a single call to an internal 3443126372Snjlfunction. This results in a savings of about 90 bytes per 3444126372Snjlinvocation, resulting in an overall code and data savings of 3445126372Snjlabout 3446126372Snjl16% in the debug version of the subsystem. 3447102550Siwasaki 3448102550Siwasaki Linux: 3449102550Siwasaki 3450114237SnjlFixed C3 disk corruption problems and re-enabled C3 on supporting 3451114237Snjlmachines. 3452102550Siwasaki 3453102550SiwasakiIntegrated low-level sleep code by Patrick Mochel. 3454102550Siwasaki 3455102550SiwasakiFurther tweaked source code Linuxization. 3456102550Siwasaki 3457102550SiwasakiOther minor fixes. 3458102550Siwasaki 3459102550Siwasaki ASL Compiler: 3460102550Siwasaki 3461114237SnjlSupport for ACPI 2.0 variable length packages is fixed/completed. 3462102550Siwasaki 3463114237SnjlFixed a problem where the optional length parameter for the ACPI 3464114237Snjl2.0 ToString operator. 3465102550Siwasaki 3466114237SnjlFixed multiple extraneous error messages when a syntax error is 3467114237Snjldetected within the declaration line of a control method. 3468102550Siwasaki 3469102550Siwasaki ---------------------------------------- 3470102550SiwasakiSummary of changes for this label: 07_17_01 3471102550Siwasaki 3472102550SiwasakiACPI CA Core Subsystem: 3473102550Siwasaki 3474104470SiwasakiAdded a new interface named AcpiGetFirmwareTable to obtain any 3475114237SnjlACPI table via the ACPI signature. The interface can be called 3476126372Snjlat 3477126372Snjlany time during kernel initialization, even before the kernel 3478114237Snjlvirtual memory manager is initialized and paging is enabled. 3479126372SnjlThis 3480126372Snjlallows kernel subsystems to obtain ACPI tables very early, even 3481126372Snjlbefore the ACPI CA subsystem is initialized. 3482102550Siwasaki 3483104470SiwasakiFixed a problem where Fields defined with the AnyAcc attribute 3484104470Siwasakicould be resolved to the incorrect address under the following 3485114237Snjlconditions: 1) the field width is larger than 8 bits and 2) the 3486114237Snjlparent operation region is not defined on a DWORD boundary. 3487102550Siwasaki 3488114237SnjlFixed a problem where the interpreter is not being locked during 3489114237Snjlnamespace initialization (during execution of the _INI control 3490114237Snjlmethods), causing an error when an attempt is made to release it 3491114237Snjllater. 3492102550Siwasaki 3493104470SiwasakiACPI 2.0 support in the AML Interpreter has begun and will be 3494114237Snjlongoing throughout the rest of this year. In this label, The Mod 3495114237Snjloperator is implemented. 3496102550Siwasaki 3497102550SiwasakiAdded a new data type to contain full PCI addresses named 3498102550SiwasakiACPI_PCI_ID. This structure contains the PCI Segment, Bus, 3499126372SnjlDevice, 3500126372Snjland Function values. 3501102550Siwasaki 3502102550Siwasaki Linux: 3503102550Siwasaki 3504102550SiwasakiEnhanced the Linux version of the source code to change most 3505102550Siwasakicapitalized ACPI type names to lowercase. For example, all 3506114237Snjlinstances of ACPI_STATUS are changed to acpi_status. This will 3507114237Snjlresult in a large diff, but the change is strictly cosmetic and 3508114237Snjlaligns the CA code closer to the Linux coding standard. 3509102550Siwasaki 3510102550SiwasakiOSL Interfaces: 3511102550Siwasaki 3512114237SnjlThe interfaces to the PCI configuration space have been changed 3513126372Snjlto 3514126372Snjladd the PCI Segment number and to split the single 32-bit 3515126372Snjlcombined 3516126372SnjlDeviceFunction field into two 16-bit fields. This was 3517114237Snjlaccomplished by moving the four values that define an address in 3518114237SnjlPCI configuration space (segment, bus, device, and function) to 3519114237Snjlthe new ACPI_PCI_ID structure. 3520102550Siwasaki 3521104470SiwasakiThe changes to the PCI configuration space interfaces led to a 3522104470Siwasakireexamination of the complete set of address space access 3523114237Snjlinterfaces for PCI, I/O, and Memory. The previously existing 18 3524114237Snjlinterfaces have proven difficult to maintain (any small change 3525114237Snjlmust be propagated across at least 6 interfaces) and do not 3526126372Snjleasily 3527126372Snjlallow for future expansion to 64 bits if necessary. Also, on 3528126372Snjlsome 3529126372Snjlsystems, it would not be appropriate to demultiplex the access 3530126372Snjlwidth (8, 16, 32,or 64) before calling the OSL if the 3531114237Snjlcorresponding native OS interfaces contain a similar access width 3532114237Snjlparameter. For these reasons, the 18 address space interfaces 3533114237Snjlhave been replaced by these 6 new ones: 3534102550Siwasaki 3535102550SiwasakiAcpiOsReadPciConfiguration 3536102550SiwasakiAcpiOsWritePciConfiguration 3537102550SiwasakiAcpiOsReadMemory 3538102550SiwasakiAcpiOsWriteMemory 3539102550SiwasakiAcpiOsReadPort 3540102550SiwasakiAcpiOsWritePort 3541102550Siwasaki 3542114237SnjlAdded a new interface named AcpiOsGetRootPointer to allow the OSL 3543114237Snjlto perform the platform and/or OS-specific actions necessary to 3544114237Snjlobtain the ACPI RSDP table pointer. On IA-32 platforms, this 3545114237Snjlinterface will simply call down to the CA core to perform the low- 3546114237Snjlmemory search for the table. On IA-64, the RSDP is obtained from 3547114237SnjlEFI. Migrating this interface to the OSL allows the CA core to 3548114237Snjlremain OS and platform independent. 3549102550Siwasaki 3550104470SiwasakiAdded a new interface named AcpiOsSignal to provide a generic 3551114237Snjl"function code and pointer" interface for various miscellaneous 3552114237Snjlsignals and notifications that must be made to the host OS. The 3553114237Snjlfirst such signals are intended to support the ASL Fatal and 3554114237SnjlBreakpoint operators. In the latter case, the AcpiOsBreakpoint 3555114237Snjlinterface has been obsoleted. 3556102550Siwasaki 3557102550SiwasakiThe definition of the AcpiFormatException interface has been 3558114237Snjlchanged to simplify its use. The caller no longer must supply a 3559114237Snjlbuffer to the call; A pointer to a const string is now returned 3560114237Snjldirectly. This allows the call to be easily used in printf 3561114237Snjlstatements, etc. since the caller does not have to manage a local 3562114237Snjlbuffer. 3563102550Siwasaki 3564114237Snjl 3565102550Siwasaki ASL Compiler, Version X2025: 3566102550Siwasaki 3567114237SnjlThe ACPI 2.0 Switch/Case/Default operators have been implemented 3568114237Snjland are fully functional. They will work with all ACPI 1.0 3569114237Snjlinterpreters, since the operators are simply translated to 3570126372SnjlIf/Else 3571126372Snjlpairs. 3572102550Siwasaki 3573104470SiwasakiThe ACPI 2.0 ElseIf operator is implemented and will also work 3574104470Siwasakiwith 1.0 interpreters, for the same reason. 3575102550Siwasaki 3576114237SnjlImplemented support for ACPI 2.0 variable-length packages. These 3577114237Snjlpackages have a separate opcode, and their size is determined by 3578114237Snjlthe interpreter at run-time. 3579102550Siwasaki 3580114237SnjlDocumentation The ACPI CA Programmer Reference has been updated 3581126372Snjlto 3582126372Snjlreflect the new interfaces and changes to existing interfaces. 3583102550Siwasaki 3584102550Siwasaki ------------------------------------------ 3585102550SiwasakiSummary of changes for this label: 06_15_01 3586102550Siwasaki 3587102550Siwasaki ACPI CA Core Subsystem: 3588102550Siwasaki 3589102550SiwasakiFixed a problem where a DWORD-accessed field within a Buffer 3590114237Snjlobject would get its byte address inadvertently rounded down to 3591114237Snjlthe nearest DWORD. Buffers are always Byte-accessible. 3592102550Siwasaki 3593102550Siwasaki ASL Compiler, version X2024: 3594102550Siwasaki 3595114237SnjlFixed a problem where the Switch() operator would either fault or 3596114237Snjlhang the compiler. Note however, that the AML code for this ACPI 3597114237Snjl2.0 operator is not yet implemented. 3598102550Siwasaki 3599114237SnjlCompiler uses the new AcpiOsGetTimer interface to obtain compile 3600114237Snjltimings. 3601102550Siwasaki 3602114237SnjlImplementation of the CreateField operator automatically converts 3603114237Snjla reference to a named field within a resource descriptor from a 3604114237Snjlbyte offset to a bit offset if required. 3605102550Siwasaki 3606102550SiwasakiAdded some missing named fields from the resource descriptor 3607104470Siwasakisupport. These are the names that are automatically created by 3608126372Snjlthe 3609126372Snjlcompiler to reference fields within a descriptor. They are only 3610126372Snjlvalid at compile time and are not passed through to the AML 3611114237Snjlinterpreter. 3612102550Siwasaki 3613104470SiwasakiResource descriptor named fields are now typed as Integers and 3614104470Siwasakisubject to compile-time typechecking when used in expressions. 3615102550Siwasaki 3616102550Siwasaki ------------------------------------------ 3617102550SiwasakiSummary of changes for this label: 05_18_01 3618102550Siwasaki 3619102550Siwasaki ACPI CA Core Subsystem: 3620102550Siwasaki 3621114237SnjlFixed a couple of problems in the Field support code where bits 3622114237Snjlfrom adjacent fields could be returned along with the proper 3623126372Snjlfield 3624126372Snjlbits. Restructured the field support code to improve performance, 3625126372Snjlreadability and maintainability. 3626102550Siwasaki 3627114237SnjlNew DEBUG_PRINTP macro automatically inserts the procedure name 3628114237Snjlinto the output, saving hundreds of copies of procedure name 3629114237Snjlstrings within the source, shrinking the memory footprint of the 3630114237Snjldebug version of the core subsystem. 3631102550Siwasaki 3632102550Siwasaki Source Code Structure: 3633102550Siwasaki 3634104470SiwasakiThe source code directory tree was restructured to reflect the 3635114237Snjlcurrent organization of the component architecture. Some files 3636114237Snjland directories have been moved and/or renamed. 3637102550Siwasaki 3638102550Siwasaki Linux: 3639102550Siwasaki 3640102550SiwasakiFixed leaking kacpidpc processes. 3641102550Siwasaki 3642102550SiwasakiFixed queueing event data even when /proc/acpi/event is not 3643102550Siwasakiopened. 3644102550Siwasaki 3645102550Siwasaki ASL Compiler, version X2020: 3646102550Siwasaki 3647114237SnjlMemory allocation performance enhancement - over 24X compile time 3648114237Snjlimprovement on large ASL files. Parse nodes and namestring 3649114237Snjlbuffers are now allocated from a large internal compiler buffer. 3650102550Siwasaki 3651102550SiwasakiThe temporary .SRC file is deleted unless the "-s" option is 3652102550Siwasakispecified 3653102550Siwasaki 3654104470SiwasakiThe "-d" debug output option now sends all output to the .DBG 3655126372Snjlfile 3656126372Snjlinstead of the console. 3657102550Siwasaki 3658102550Siwasaki"External" second parameter is now optional 3659102550Siwasaki 3660102550Siwasaki"ElseIf" syntax now properly allows the predicate 3661102550Siwasaki 3662102550SiwasakiLast operand to "Load" now recognized as a Target operand 3663102550Siwasaki 3664102550SiwasakiDebug object can now be used anywhere as a normal object. 3665102550Siwasaki 3666102550SiwasakiResourceTemplate now returns an object of type BUFFER 3667102550Siwasaki 3668102550SiwasakiEISAID now returns an object of type INTEGER 3669102550Siwasaki 3670102550Siwasaki"Index" now works with a STRING operand 3671102550Siwasaki 3672102550Siwasaki"LoadTable" now accepts optional parameters 3673102550Siwasaki 3674102550Siwasaki"ToString" length parameter is now optional 3675102550Siwasaki 3676102550Siwasaki"Interrupt (ResourceType," parse error fixed. 3677102550Siwasaki 3678104470Siwasaki"Register" with a user-defined region space parse error fixed 3679102550Siwasaki 3680114237SnjlEscaped backslash at the end of a string ("\\") scan/parse error 3681114237Snjlfixed 3682102550Siwasaki 3683102550Siwasaki"Revision" is now an object of type INTEGER. 3684102550Siwasaki 3685102550Siwasaki 3686102550Siwasaki 3687102550Siwasaki------------------------------------------ 3688102550SiwasakiSummary of changes for this label: 05_02_01 3689102550Siwasaki 3690102550SiwasakiLinux: 3691102550Siwasaki 3692102550Siwasaki/proc/acpi/event now blocks properly. 3693102550Siwasaki 3694102550SiwasakiRemoved /proc/sys/acpi. You can still dump your DSDT from 3695102550Siwasaki/proc/acpi/dsdt. 3696102550Siwasaki 3697102550Siwasaki ACPI CA Core Subsystem: 3698102550Siwasaki 3699104470SiwasakiFixed a problem introduced in the previous label where some of 3700126372Snjlthe 3701126372Snjl"small" resource descriptor types were not recognized. 3702102550Siwasaki 3703102550SiwasakiImproved error messages for the case where an ASL Field is 3704126372Snjloutside 3705126372Snjlthe range of the parent operation region. 3706102550Siwasaki 3707102550Siwasaki ASL Compiler, version X2018: 3708102550Siwasaki 3709102550SiwasakiAdded error detection for ASL Fields that extend beyond the 3710126372Snjllength 3711126372Snjlof the parent operation region (only if the length of the region 3712126372Snjlis known at compile time.) This includes fields that have a 3713126372Snjlminimum access width that is smaller than the parent region, and 3714126372Snjlindividual field units that are partially or entirely beyond the 3715126372Snjlextent of the parent. 3716102550Siwasaki 3717102550Siwasaki 3718102550Siwasaki 3719102550Siwasaki------------------------------------------ 3720102550SiwasakiSummary of changes for this label: 04_27_01 3721102550Siwasaki 3722102550Siwasaki ACPI CA Core Subsystem: 3723102550Siwasaki 3724104470SiwasakiFixed a problem where the namespace mutex could be released at 3725126372Snjlthe 3726126372Snjlwrong time during execution of AcpiRemoveAddressSpaceHandler. 3727102550Siwasaki 3728104470SiwasakiAdded optional thread ID output for debug traces, to simplify 3729114237Snjldebugging of multiple threads. Added context switch notification 3730114237Snjlwhen the debug code realizes that a different thread is now 3731114237Snjlexecuting ACPI code. 3732102550Siwasaki 3733114237SnjlSome additional external data types have been prefixed with the 3734114237Snjlstring "ACPI_" for consistency. This may effect existing code. 3735114237SnjlThe data types affected are the external callback typedefs - 3736126372Snjle.g., 3737126372SnjlWALK_CALLBACK becomes ACPI_WALK_CALLBACK. 3738102550Siwasaki 3739102550Siwasaki Linux: 3740102550Siwasaki 3741102550SiwasakiFixed an issue with the OSL semaphore implementation where a 3742102550Siwasakithread was waking up with an error from receiving a SIGCHLD 3743102550Siwasakisignal. 3744102550Siwasaki 3745114237SnjlLinux version of ACPI CA now uses the system C library for string 3746114237Snjlmanipulation routines instead of a local implementation. 3747102550Siwasaki 3748102550SiwasakiCleaned up comments and removed TBDs. 3749102550Siwasaki 3750102550Siwasaki ASL Compiler, version X2017: 3751102550Siwasaki 3752102550SiwasakiEnhanced error detection and reporting for all file I/O 3753102550Siwasakioperations. 3754102550Siwasaki 3755102550Siwasaki Documentation: 3756102550Siwasaki 3757102550SiwasakiProgrammer Reference updated to version 1.06. 3758102550Siwasaki 3759102550Siwasaki 3760102550Siwasaki 3761102550Siwasaki------------------------------------------ 3762102550SiwasakiSummary of changes for this label: 04_13_01 3763102550Siwasaki 3764102550Siwasaki ACPI CA Core Subsystem: 3765102550Siwasaki 3766102550SiwasakiRestructured support for BufferFields and RegionFields. 3767104470SiwasakiBankFields support is now fully operational. All known 32-bit 3768114237Snjllimitations on field sizes have been removed. Both BufferFields 3769114237Snjland (Operation) RegionFields are now supported by the same field 3770114237Snjlmanagement code. 3771102550Siwasaki 3772114237SnjlResource support now supports QWORD address and IO resources. The 3773114237Snjl16/32/64 bit address structures and the Extended IRQ structure 3774114237Snjlhave been changed to properly handle Source Resource strings. 3775102550Siwasaki 3776114237SnjlA ThreadId of -1 is now used to indicate a "mutex not acquired" 3777114237Snjlcondition internally and must never be returned by 3778126372SnjlAcpiOsThreadId. 3779126372SnjlThis reserved value was changed from 0 since Unix systems allow a 3780126372Snjlthread ID of 0. 3781102550Siwasaki 3782102550SiwasakiLinux: 3783102550Siwasaki 3784102550SiwasakiDriver code reorganized to enhance portability 3785102550Siwasaki 3786102550SiwasakiAdded a kernel configuration option to control ACPI_DEBUG 3787102550Siwasaki 3788102550SiwasakiFixed the EC driver to honor _GLK. 3789102550Siwasaki 3790102550SiwasakiASL Compiler, version X2016: 3791102550Siwasaki 3792114237SnjlFixed support for the "FixedHw" keyword. Previously, the FixedHw 3793114237Snjladdress space was set to 0, not 0x7f as it should be. 3794102550Siwasaki 3795102550Siwasaki ------------------------------------------ 3796102550SiwasakiSummary of changes for this label: 03_13_01 3797102550Siwasaki 3798102550Siwasaki ACPI CA Core Subsystem: 3799102550Siwasaki 3800104470SiwasakiDuring ACPI initialization, the _SB_._INI method is now run if 3801104470Siwasakipresent. 3802102550Siwasaki 3803102550SiwasakiNotify handler fix - notifies are deferred until the parent 3804126372Snjlmethod 3805126372Snjlcompletes execution. This fixes the "mutex already acquired" 3806126372Snjlissue seen occasionally. 3807102550Siwasaki 3808104470SiwasakiPart of the "implicit conversion" rules in ACPI 2.0 have been 3809114237Snjlfound to cause compatibility problems with existing ASL/AML. The 3810114237Snjlconvert "result-to-target-type" implementation has been removed 3811114237Snjlfor stores to method Args and Locals. Source operand conversion 3812114237Snjlis still fully implemented. Possible changes to ACPI 2.0 3813114237Snjlspecification pending. 3814102550Siwasaki 3815104470SiwasakiFix to AcpiRsCalculatePciRoutingTableLength to return correct 3816104470Siwasakilength. 3817102550Siwasaki 3818102550SiwasakiFix for compiler warnings for 64-bit compiles. 3819102550Siwasaki 3820102550Siwasaki Linux: 3821102550Siwasaki 3822102550Siwasaki/proc output aligned for easier parsing. 3823102550Siwasaki 3824102550SiwasakiRelease-version compile problem fixed. 3825102550Siwasaki 3826104470SiwasakiNew kernel configuration options documented in Configure.help. 3827102550Siwasaki 3828102550SiwasakiIBM 600E - Fixed Sleep button may generate "Invalid <NULL> 3829102550Siwasakicontext" message. 3830102550Siwasaki 3831102550Siwasaki OSPM: 3832102550Siwasaki 3833102550SiwasakiPower resource driver integrated with bus manager. 3834102550Siwasaki 3835102550SiwasakiFixed kernel fault during active cooling for thermal zones. 3836102550Siwasaki 3837102550SiwasakiSource Code: 3838102550Siwasaki 3839102550SiwasakiThe source code tree has been restructured. 3840102550Siwasaki 3841102550Siwasaki 3842102550Siwasaki 3843102550Siwasaki------------------------------------------ 3844102550SiwasakiSummary of changes for this label: 03_02_01 3845102550Siwasaki 3846102550Siwasaki Linux OS Services Layer (OSL): 3847102550Siwasaki 3848102550SiwasakiMajor revision of all Linux-specific code. 3849102550Siwasaki 3850102550SiwasakiModularized all ACPI-specific drivers. 3851102550Siwasaki 3852102550SiwasakiAdded new thermal zone and power resource drivers. 3853102550Siwasaki 3854114237SnjlRevamped /proc interface (new functionality is under /proc/acpi). 3855102550Siwasaki 3856102550SiwasakiNew kernel configuration options. 3857102550Siwasaki 3858102550Siwasaki Linux known issues: 3859102550Siwasaki 3860114237SnjlNew kernel configuration options not documented in Configure.help 3861114237Snjlyet. 3862102550Siwasaki 3863114237Snjl 3864102550SiwasakiModule dependencies not currently implemented. If used, they 3865102550Siwasakishould be loaded in this order: busmgr, power, ec, system, 3866102550Siwasakiprocessor, battery, ac_adapter, button, thermal. 3867102550Siwasaki 3868102550SiwasakiModules will not load if CONFIG_MODVERSION is set. 3869102550Siwasaki 3870102550SiwasakiIBM 600E - entering S5 may reboot instead of shutting down. 3871102550Siwasaki 3872104470SiwasakiIBM 600E - Sleep button may generate "Invalid <NULL> context" 3873104470Siwasakimessage. 3874102550Siwasaki 3875104470SiwasakiSome systems may fail with "execution mutex already acquired" 3876104470Siwasakimessage. 3877102550Siwasaki 3878102550Siwasaki ACPI CA Core Subsystem: 3879102550Siwasaki 3880114237SnjlAdded a new OSL Interface, AcpiOsGetThreadId. This was required 3881114237Snjlfor the deadlock detection code. Defined to return a non-zero, 3882126372Snjl32- 3883126372Snjlbit thread ID for the currently executing thread. May be a non- 3884126372Snjlzero constant integer on single-thread systems. 3885102550Siwasaki 3886104470SiwasakiImplemented deadlock detection for internal subsystem mutexes. 3887126372SnjlWe 3888126372Snjlmay add conditional compilation for this code (debug only) later. 3889102550Siwasaki 3890104470SiwasakiASL/AML Mutex object semantics are now fully supported. This 3891114237Snjlincludes multiple acquires/releases by owner and support for the 3892114237SnjlMutex SyncLevel parameter. 3893102550Siwasaki 3894102550SiwasakiA new "Force Release" mechanism automatically frees all ASL 3895104470SiwasakiMutexes that have been acquired but not released when a thread 3896114237Snjlexits the interpreter. This forces conformance to the ACPI spec 3897114237Snjl("All mutexes must be released when an invocation exits") and 3898114237Snjlprevents deadlocked ASL threads. This mechanism can be expanded 3899114237Snjl(later) to monitor other resource acquisitions if OEM ASL code 3900114237Snjlcontinues to misbehave (which it will). 3901102550Siwasaki 3902104470SiwasakiSeveral new ACPI exception codes have been added for the Mutex 3903104470Siwasakisupport. 3904102550Siwasaki 3905104470SiwasakiRecursive method calls are now allowed and supported (the ACPI 3906114237Snjlspec does in fact allow recursive method calls.) The number of 3907114237Snjlrecursive calls is subject to the restrictions imposed by the 3908114237SnjlSERIALIZED method keyword and SyncLevel (ACPI 2.0) method 3909104470Siwasakiparameter. 3910102550Siwasaki 3911102550SiwasakiImplemented support for the SyncLevel parameter for control 3912102550Siwasakimethods (ACPI 2.0 feature) 3913102550Siwasaki 3914114237SnjlFixed a deadlock problem when multiple threads attempted to use 3915114237Snjlthe interpreter. 3916102550Siwasaki 3917102550SiwasakiFixed a problem where the string length of a String package 3918102550Siwasakielement was not always set in a package returned from 3919102550SiwasakiAcpiEvaluateObject. 3920102550Siwasaki 3921114237SnjlFixed a problem where the length of a String package element was 3922114237Snjlnot always included in the length of the overall package returned 3923114237Snjlfrom AcpiEvaluateObject. 3924102550Siwasaki 3925102550SiwasakiAdded external interfaces (Acpi*) to the ACPI debug memory 3926102550Siwasakimanager. This manager keeps a list of all outstanding 3927114237Snjlallocations, and can therefore detect memory leaks and attempts 3928126372Snjlto 3929126372Snjlfree memory blocks more than once. Useful for code such as the 3930114237Snjlpower manager, etc. May not be appropriate for device drivers. 3931114237SnjlPerformance with the debug code enabled is slow. 3932102550Siwasaki 3933102550SiwasakiThe ACPI Global Lock is now an optional hardware element. 3934102550Siwasaki 3935102550Siwasaki ASL Compiler Version X2015: 3936102550Siwasaki 3937102550SiwasakiIntegrated changes to allow the compiler to be generated on 3938102550Siwasakimultiple platforms. 3939102550Siwasaki 3940102550SiwasakiLinux makefile added to generate the compiler on Linux 3941102550Siwasaki 3942102550Siwasaki Source Code: 3943102550Siwasaki 3944102550SiwasakiAll platform-specific headers have been moved to their own 3945102550Siwasakisubdirectory, Include/Platform. 3946102550Siwasaki 3947102550SiwasakiNew source file added, Interpreter/ammutex.c 3948102550Siwasaki 3949102550SiwasakiNew header file, Include/acstruct.h 3950102550Siwasaki 3951102550Siwasaki Documentation: 3952102550Siwasaki 3953114237SnjlThe programmer reference has been updated for the following new 3954114237Snjlinterfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree 3955102550Siwasaki 3956102550Siwasaki ------------------------------------------ 3957102550SiwasakiSummary of changes for this label: 02_08_01 3958102550Siwasaki 3959102550SiwasakiCore ACPI CA Subsystem: Fixed a problem where an error was 3960104470Siwasakiincorrectly returned if the return resource buffer was larger 3961126372Snjlthan 3962126372Snjlthe actual data (in the resource interfaces). 3963102550Siwasaki 3964114237SnjlReferences to named objects within packages are resolved to the 3965114237Snjlfull pathname string before packages are returned directly (via 3966114237Snjlthe AcpiEvaluateObject interface) or indirectly via the resource 3967114237Snjlinterfaces. 3968102550Siwasaki 3969102550SiwasakiLinux OS Services Layer (OSL): 3970102550Siwasaki 3971102550SiwasakiImproved /proc battery interface. 3972102550Siwasaki 3973102550Siwasaki 3974104470SiwasakiAdded C-state debugging output and other miscellaneous fixes. 3975102550Siwasaki 3976102550SiwasakiASL Compiler Version X2014: 3977102550Siwasaki 3978114237SnjlAll defined method arguments can now be used as local variables, 3979114237Snjlincluding the ones that are not actually passed in as parameters. 3980114237SnjlThe compiler tracks initialization of the arguments and issues an 3981114237Snjlexception if they are used without prior assignment (just like 3982114237Snjllocals). 3983102550Siwasaki 3984104470SiwasakiThe -o option now specifies a filename prefix that is used for 3985126372Snjlall 3986126372Snjloutput files, including the AML output file. Otherwise, the 3987114237Snjldefault behavior is as follows: 1) the AML goes to the file 3988114237Snjlspecified in the DSDT. 2) all other output files use the input 3989114237Snjlsource filename as the base. 3990102550Siwasaki 3991102550Siwasaki ------------------------------------------ 3992102550SiwasakiSummary of changes for this label: 01_25_01 3993102550Siwasaki 3994114237SnjlCore ACPI CA Subsystem: Restructured the implementation of object 3995114237Snjlstore support within the interpreter. This includes support for 3996114237Snjlthe Store operator as well as any ASL operators that include a 3997114237Snjltarget operand. 3998102550Siwasaki 3999102550SiwasakiPartially implemented support for Implicit Result-to-Target 4000114237Snjlconversion. This is when a result object is converted on the fly 4001114237Snjlto the type of an existing target object. Completion of this 4002114237Snjlsupport is pending further analysis of the ACPI specification 4003114237Snjlconcerning this matter. 4004102550Siwasaki 4005114237SnjlCPU-specific code has been removed from the subsystem (hardware 4006114237Snjldirectory). 4007102550Siwasaki 4008102550SiwasakiNew Power Management Timer functions added 4009102550Siwasaki 4010114237SnjlLinux OS Services Layer (OSL): Moved system state transition code 4011114237Snjlto the core, fixed it, and modified Linux OSL accordingly. 4012102550Siwasaki 4013102550SiwasakiFixed C2 and C3 latency calculations. 4014102550Siwasaki 4015102550Siwasaki 4016114237SnjlWe no longer use the compilation date for the version message on 4017114237Snjlinitialization, but retrieve the version from 4018102550SiwasakiAcpiGetSystemInfo(). 4019102550Siwasaki 4020102550SiwasakiIncorporated for fix Sony VAIO machines. 4021102550Siwasaki 4022104470SiwasakiDocumentation: The Programmer Reference has been updated and 4023104470Siwasakireformatted. 4024102550Siwasaki 4025102550Siwasaki 4026102550SiwasakiASL Compiler: Version X2013: Fixed a problem where the line 4027102550Siwasakinumbering and error reporting could get out of sync in the 4028102550Siwasakipresence of multiple include files. 4029102550Siwasaki 4030102550Siwasaki ------------------------------------------ 4031102550SiwasakiSummary of changes for this label: 01_15_01 4032102550Siwasaki 4033102550SiwasakiCore ACPI CA Subsystem: 4034102550Siwasaki 4035114237SnjlImplemented support for type conversions in the execution of the 4036114237SnjlASL Concatenate operator (The second operand is converted to 4037114237Snjlmatch the type of the first operand before concatenation.) 4038102550Siwasaki 4039102550SiwasakiSupport for implicit source operand conversion is partially 4040114237Snjlimplemented. The ASL source operand types Integer, Buffer, and 4041114237SnjlString are freely interchangeable for most ASL operators and are 4042114237Snjlconverted by the interpreter on the fly as required. Implicit 4043114237SnjlTarget operand conversion (where the result is converted to the 4044114237Snjltarget type before storing) is not yet implemented. 4045102550Siwasaki 4046102550SiwasakiSupport for 32-bit and 64-bit BCD integers is implemented. 4047102550Siwasaki 4048114237SnjlProblem fixed where a field read on an aligned field could cause 4049126372Snjla 4050126372Snjlread past the end of the field. 4051102550Siwasaki 4052114237SnjlNew exception, AE_AML_NO_RETURN_VALUE, is returned when a method 4053114237Snjldoes not return a value, but the caller expects one. (The ASL 4054114237Snjlcompiler flags this as a warning.) 4055102550Siwasaki 4056102550SiwasakiASL Compiler: 4057102550Siwasaki 4058102550SiwasakiVersion X2011: 4059102550Siwasaki1. Static typechecking of all operands is implemented. This 4060102550Siwasakiprevents the use of invalid objects (such as using a Package 4061126372Snjlwhere 4062126372Snjlan Integer is required) at compile time instead of at interpreter 4063126372Snjlrun-time. 4064114237Snjl2. The ASL source line is printed with ALL errors and warnings. 4065102550Siwasaki3. Bug fix for source EOF without final linefeed. 4066102550Siwasaki4. Debug option is split into a parse trace and a namespace 4067102550Siwasakitrace. 4068102550Siwasaki5. Namespace output option (-n) includes initial values for 4069102550Siwasakiintegers and strings. 4070102550Siwasaki6. Parse-only option added for quick syntax checking. 4071102550Siwasaki7. Compiler checks for duplicate ACPI name declarations 4072102550Siwasaki 4073102550SiwasakiVersion X2012: 4074102550Siwasaki1. Relaxed typechecking to allow interchangeability between 4075114237Snjlstrings, integers, and buffers. These types are now converted by 4076114237Snjlthe interpreter at runtime. 4077114237Snjl2. Compiler reports time taken by each internal subsystem in the 4078114237Snjldebug output file. 4079102550Siwasaki 4080102550Siwasaki 4081102550Siwasaki ------------------------------------------ 4082102550SiwasakiSummary of changes for this label: 12_14_00 4083102550Siwasaki 4084102550SiwasakiASL Compiler: 4085102550Siwasaki 4086104470SiwasakiThis is the first official release of the compiler. Since the 4087104470Siwasakicompiler requires elements of the Core Subsystem, this label 4088104470Siwasakisynchronizes everything. 4089102550Siwasaki 4090102550Siwasaki------------------------------------------ 4091102550SiwasakiSummary of changes for this label: 12_08_00 4092102550Siwasaki 4093102550Siwasaki 4094114237SnjlFixed a problem where named references within the ASL definition 4095114237Snjlof both OperationRegions and CreateXXXFields did not work 4096114237Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 4097114237Snjlinitialization of the region/field. This is similar (but not 4098114237Snjlrelated internally) to the problem that was fixed in the last 4099114237Snjllabel. 4100114237Snjl 4101102550SiwasakiImplemented both 32-bit and 64-bit support for the BCD ASL 4102102550Siwasakifunctions ToBCD and FromBCD. 4103102550Siwasaki 4104102550SiwasakiUpdated all legal headers to include "2000" in the copyright 4105102550Siwasakiyears. 4106102550Siwasaki 4107102550Siwasaki ------------------------------------------ 4108102550SiwasakiSummary of changes for this label: 12_01_00 4109102550Siwasaki 4110102550SiwasakiFixed a problem where method invocations within the ASL 4111126372Snjldefinition 4112126372Snjlof both OperationRegions and CreateXXXFields did not work 4113126372Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 4114114237Snjlinitialization of the region/field: 4115102550Siwasaki 4116114237Snjl nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments 4117114237Snjl[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s) 4118114237Snjl(0x3005) 4119102550Siwasaki 4120102550SiwasakiFixed a problem where operators with more than one nested 4121104470Siwasakisubexpression would fail. The symptoms were varied, by mostly 4122114237SnjlAE_AML_OPERAND_TYPE errors. This was actually a rather serious 4123114237Snjlproblem that has gone unnoticed until now. 4124102550Siwasaki 4125102550Siwasaki Subtract (Add (1,2), Multiply (3,4)) 4126102550Siwasaki 4127114237SnjlFixed a problem where AcpiGetHandle didn't quite get fixed in the 4128114237Snjlprevious build (The prefix part of a relative path was handled 4129114237Snjlincorrectly). 4130102550Siwasaki 4131114237SnjlFixed a problem where Operation Region initialization failed if 4132114237Snjlthe operation region name was a "namepath" instead of a simple 4133114237Snjl"nameseg". Symptom was an AE_NO_OPERAND error. 4134102550Siwasaki 4135114237SnjlFixed a problem where an assignment to a local variable via the 4136114237Snjlindirect RefOf mechanism only worked for the first such 4137102550Siwasakiassignment. Subsequent assignments were ignored. 4138102550Siwasaki 4139102550Siwasaki ------------------------------------------ 4140102550SiwasakiSummary of changes for this label: 11_15_00 4141102550Siwasaki 4142104470SiwasakiACPI 2.0 table support with backwards support for ACPI 1.0 and 4143126372Snjlthe 4144126372Snjl0.71 extensions. Note: although we can read ACPI 2.0 BIOS 4145126372Snjltables, 4146126372Snjlthe AML interpreter does NOT have support for the new 2.0 ASL 4147126372Snjlgrammar terms at this time. 4148102550Siwasaki 4149104470SiwasakiAll ACPI hardware access is via the GAS structures in the ACPI 4150126372Snjl2.0 4151126372SnjlFADT. 4152102550Siwasaki 4153104470SiwasakiAll physical memory addresses across all platforms are now 64 4154126372Snjlbits 4155126372Snjlwide. Logical address width remains dependent on the platform 4156126372Snjl(i.e., "void *"). 4157102550Siwasaki 4158114237SnjlAcpiOsMapMemory interface changed to a 64-bit physical address. 4159102550Siwasaki 4160114237SnjlThe AML interpreter integer size is now 64 bits, as per the ACPI 4161114237Snjl2.0 specification. 4162102550Siwasaki 4163104470SiwasakiFor backwards compatibility with ACPI 1.0, ACPI tables with a 4164104470Siwasakirevision number less than 2 use 32-bit integers only. 4165102550Siwasaki 4166114237SnjlFixed a problem where the evaluation of OpRegion operands did not 4167114237Snjlalways resolve them to numbers properly. 4168102550Siwasaki 4169102550Siwasaki------------------------------------------ 4170102550SiwasakiSummary of changes for this label: 10_20_00 4171102550Siwasaki 4172114237SnjlFix for CBN_._STA issue. This fix will allow correct access to 4173114237SnjlCBN_ OpRegions when the _STA returns 0x8. 4174102550Siwasaki 4175104470SiwasakiSupport to convert ACPI constants (Ones, Zeros, One) to actual 4176104470Siwasakivalues before a package object is returned 4177102550Siwasaki 4178104470SiwasakiFix for method call as predicate to if/while construct causing 4179104470Siwasakiincorrect if/while behavior 4180102550Siwasaki 4181114237SnjlFix for Else block package lengths sometimes calculated wrong (if 4182114237Snjlblock > 63 bytes) 4183102550Siwasaki 4184102550SiwasakiFix for Processor object length field, was always zero 4185102550Siwasaki 4186102550SiwasakiTable load abort if FACP sanity check fails 4187102550Siwasaki 4188102550SiwasakiFix for problem with Scope(name) if name already exists 4189102550Siwasaki 4190102550SiwasakiWarning emitted if a named object referenced cannot be found 4191102550Siwasaki(resolved) during method execution. 4192102550Siwasaki 4193102550Siwasaki 4194102550Siwasaki 4195102550Siwasaki 4196102550Siwasaki 4197102550Siwasaki------------------------------------------ 4198102550SiwasakiSummary of changes for this label: 9_29_00 4199102550Siwasaki 4200114237SnjlNew table initialization interfaces: AcpiInitializeSubsystem no 4201114237Snjllonger has any parameters AcpiFindRootPointer - Find the RSDP (if 4202114237Snjlnecessary) AcpiLoadTables (RSDP) - load all tables found at RSDP- 4203114237Snjl>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by 4204114237SnjlAcpiLoadTables 4205102550Siwasaki 4206104470SiwasakiNote: These interface changes require changes to all existing 4207104470SiwasakiOSDs 4208102550Siwasaki 4209114237SnjlThe PCI_Config default address space handler is always installed 4210114237Snjlat the root namespace object. 4211102550Siwasaki 4212102550Siwasaki------------------------------------------- 4213102550SiwasakiSummary of changes for this label: 09_15_00 4214102550Siwasaki 4215102550SiwasakiThe new initialization architecture is implemented. New 4216114237Snjlinterfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize) 4217114237SnjlAcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace 4218114237Snjl(Namespace is automatically loaded when a table is loaded) 4219102550Siwasaki 4220104470SiwasakiThe ACPI_OPERAND_OBJECT has been optimized to shrink its size 4221126372Snjlfrom 4222126372Snjl52 bytes to 32 bytes. There is usually one of these for every 4223126372Snjlnamespace object, so the memory savings is significant. 4224102550Siwasaki 4225114237SnjlImplemented just-in-time evaluation of the CreateField operators. 4226102550Siwasaki 4227102550SiwasakiBug fixes for IA-64 support have been integrated. 4228102550Siwasaki 4229102550SiwasakiAdditional code review comments have been implemented 4230102550Siwasaki 4231104470SiwasakiThe so-called "third pass parse" has been replaced by a final 4232126372Snjlwalk 4233126372Snjlthrough the namespace to initialize all operation regions 4234126372Snjl(address 4235126372Snjlspaces) and fields that have not yet been initialized during the 4236126372Snjlexecution of the various _INI and REG methods. 4237102550Siwasaki 4238102550SiwasakiNew file - namespace/nsinit.c 4239102550Siwasaki 4240102550Siwasaki------------------------------------------- 4241102550SiwasakiSummary of changes for this label: 09_01_00 4242102550Siwasaki 4243104470SiwasakiNamespace manager data structures have been reworked to change 4244126372Snjlthe 4245126372Snjlprimary object from a table to a single object. This has 4246104470Siwasakiresulted in dynamic memory savings of 3X within the namespace 4247126372Snjland 4248126372Snjl2X overall in the ACPI CA subsystem. 4249102550Siwasaki 4250102550SiwasakiFixed problem where the call to AcpiEvFindPciRootBuses was 4251102550Siwasakiinadvertently left commented out. 4252102550Siwasaki 4253114237SnjlReduced the warning count when generating the source with the GCC 4254114237Snjlcompiler. 4255102550Siwasaki 4256102550SiwasakiRevision numbers added to each module header showing the 4257104470SiwasakiSourceSafe version of the file. Please refer to this version 4258114237Snjlnumber when giving us feedback or comments on individual modules. 4259102550Siwasaki 4260114237SnjlThe main object types within the subsystem have been renamed to 4261114237Snjlclarify their purpose: 4262102550Siwasaki 4263102550SiwasakiACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT 4264102550SiwasakiACPI_GENERIC_OP -> ACPI_PARSE_OBJECT 4265102550SiwasakiACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE 4266102550Siwasaki 4267114237SnjlNOTE: no changes to the initialization sequence are included in 4268114237Snjlthis label. 4269102550Siwasaki 4270102550Siwasaki------------------------------------------- 4271102550SiwasakiSummary of changes for this label: 08_23_00 4272102550Siwasaki 4273102550SiwasakiFixed problem where TerminateControlMethod was being called 4274102550Siwasakimultiple times per method 4275102550Siwasaki 4276114237SnjlFixed debugger problem where single stepping caused a semaphore 4277126372Snjlto 4278126372Snjlbe oversignalled 4279102550Siwasaki 4280104470SiwasakiImproved performance through additional parse object caching - 4281104470Siwasakiadded ACPI_EXTENDED_OP type 4282102550Siwasaki 4283102550Siwasaki------------------------------------------- 4284102550SiwasakiSummary of changes for this label: 08_10_00 4285102550Siwasaki 4286102550SiwasakiParser/Interpreter integration: Eliminated the creation of 4287102550Siwasakicomplete parse trees for ACPI tables and control methods. 4288114237SnjlInstead, parse subtrees are created and then deleted as soon as 4289114237Snjlthey are processed (Either entered into the namespace or 4290126372Snjlexecuted 4291126372Snjlby the interpreter). This reduces the use of dynamic kernel 4292126372Snjlmemory significantly. (about 10X) 4293102550Siwasaki 4294114237SnjlException codes broken into classes and renumbered. Be sure to 4295114237Snjlrecompile all code that includes acexcep.h. Hopefully we won't 4296114237Snjlhave to renumber the codes again now that they are split into 4297114237Snjlclasses (environment, programmer, AML code, ACPI table, and 4298114237Snjlinternal). 4299102550Siwasaki 4300104470SiwasakiFixed some additional alignment issues in the Resource Manager 4301104470Siwasakisubcomponent 4302102550Siwasaki 4303114237SnjlImplemented semaphore tracking in the AcpiExec utility, and fixed 4304114237Snjlseveral places where mutexes/semaphores were being unlocked 4305114237Snjlwithout a corresponding lock operation. There are no known 4306114237Snjlsemaphore or mutex "leaks" at this time. 4307102550Siwasaki 4308114237SnjlFixed the case where an ASL Return operator is used to return an 4309114237Snjlunnamed package. 4310102550Siwasaki 4311102550Siwasaki------------------------------------------- 4312102550SiwasakiSummary of changes for this label: 07_28_00 4313102550Siwasaki 4314102550SiwasakiFixed a problem with the way addresses were calculated in 4315114237SnjlAcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem 4316114237Snjlmanifested itself when a Field was created with WordAccess or 4317114237SnjlDwordAccess, but the field unit defined within the Field was 4318126372Snjlless 4319126372Snjlthan a Word or Dword. 4320102550Siwasaki 4321102550SiwasakiFixed a problem in AmlDumpOperands() module's loop to pull 4322104470Siwasakioperands off of the operand stack to display information. The 4323114237Snjlproblem manifested itself as a TLB error on 64-bit systems when 4324114237Snjlaccessing an operand stack with two or more operands. 4325102550Siwasaki 4326114237SnjlFixed a problem with the PCI configuration space handlers where 4327114237Snjlcontext was getting confused between accesses. This required a 4328114237Snjlchange to the generic address space handler and address space 4329114237Snjlsetup definitions. Handlers now get both a global handler 4330126372Snjlcontext 4331126372Snjl(this is the one passed in by the user when executing 4332114237SnjlAcpiInstallAddressSpaceHandler() and a specific region context 4333114237Snjlthat is unique to each region (For example, the _ADR, _SEG and 4334114237Snjl_BBN values associated with a specific region). The generic 4335114237Snjlfunction definitions have changed to the following: 4336102550Siwasaki 4337114237Snjltypedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function, 4338114237SnjlUINT32 Address, UINT32 BitWidth, UINT32 *Value, void 4339104470Siwasaki*HandlerContext, // This used to be void *Context void 4340102550Siwasaki*RegionContext); // This is an additional parameter 4341102550Siwasaki 4342102550Siwasakitypedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE 4343102550SiwasakiRegionHandle, UINT32 Function, void *HandlerContext, void 4344102550Siwasaki**RegionContext); // This used to be **ReturnContext 4345102550Siwasaki 4346102550Siwasaki------------------------------------------- 4347102550SiwasakiSummary of changes for this label: 07_21_00 4348102550Siwasaki 4349102550SiwasakiMajor file consolidation and rename. All files within the 4350102550Siwasakiinterpreter have been renamed as well as most header files. 4351126372SnjlThis 4352126372Snjlwas done to prevent collisions with existing files in the host 4353126372SnjlOSs -- filenames such as "config.h" and "global.h" seem to be 4354126372Snjlquite common. The VC project files have been updated. All 4355114237Snjlmakefiles will require modification. 4356102550Siwasaki 4357114237SnjlThe parser/interpreter integration continues in Phase 5 with the 4358114237Snjlimplementation of a complete 2-pass parse (the AML is parsed 4359114237Snjltwice) for each table; This avoids the construction of a huge 4360114237Snjlparse tree and therefore reduces the amount of dynamic memory 4361114237Snjlrequired by the subsystem. Greater use of the parse object cache 4362114237Snjlmeans that performance is unaffected. 4363102550Siwasaki 4364102550SiwasakiMany comments from the two code reviews have been rolled in. 4365102550Siwasaki 4366102550SiwasakiThe 64-bit alignment support is complete. 4367102550Siwasaki 4368102550Siwasaki------------------------------------------- 4369102550SiwasakiSummary of changes for this label: 06_30_00 4370102550Siwasaki 4371114237SnjlWith a nod and a tip of the hat to the technology of yesteryear, 4372114237Snjlwe've added support in the source code for 80 column output 4373114237Snjldevices. The code is now mostly constrained to 80 columns or 4374114237Snjlless to support environments and editors that 1) cannot display 4375114237Snjlor print more than 80 characters on a single line, and 2) cannot 4376114237Snjldisable line wrapping. 4377102550Siwasaki 4378104470SiwasakiA major restructuring of the namespace data structure has been 4379104470Siwasakicompleted. The result is 1) cleaner and more 4380114237Snjlunderstandable/maintainable code, and 2) a significant reduction 4381114237Snjlin the dynamic memory requirement for each named ACPI object 4382114237Snjl(almost half). 4383102550Siwasaki 4384102550Siwasaki------------------------------------------- 4385102550SiwasakiSummary of changes for this label: 06_23_00 4386102550Siwasaki 4387114237SnjlLinux support has been added. In order to obtain approval to get 4388114237Snjlthe ACPI CA subsystem into the Linux kernel, we've had to make 4389114237Snjlquite a few changes to the base subsystem that will affect all 4390114237Snjlusers (all the changes are generic and OS- independent). The 4391114237Snjleffects of these global changes have been somewhat far reaching. 4392114237SnjlFiles have been merged and/or renamed and interfaces have been 4393114237Snjlrenamed. The major changes are described below. 4394102550Siwasaki 4395102550SiwasakiOsd* interfaces renamed to AcpiOs* to eliminate namespace 4396102550Siwasakipollution/confusion within our target kernels. All OSD 4397114237Snjlinterfaces must be modified to match the new naming convention. 4398102550Siwasaki 4399102550SiwasakiFiles merged across the subsystem. A number of the smaller 4400126372Snjlsource 4401126372Snjland header files have been merged to reduce the file count and 4402126372Snjlincrease the density of the existing files. There are too many 4403126372Snjlto list here. In general, makefiles that call out individual 4404126372Snjlfiles will require rebuilding. 4405102550Siwasaki 4406104470SiwasakiInterpreter files renamed. All interpreter files now have the 4407104470Siwasakiprefix am* instead of ie* and is*. 4408102550Siwasaki 4409104470SiwasakiHeader files renamed: The acapi.h file is now acpixf.h. The 4410114237Snjlacpiosd.h file is now acpiosxf.h. We are removing references to 4411114237Snjlthe acronym "API" since it is somewhat windowsy. The new name is 4412114237Snjl"external interface" or xface or xf in the filenames.j 4413102550Siwasaki 4414102550Siwasaki 4415114237SnjlAll manifest constants have been forced to upper case (some were 4416114237Snjlmixed case.) Also, the string "ACPI_" has been prepended to 4417126372Snjlmany 4418126372Snjl(not all) of the constants, typedefs, and structs. 4419102550Siwasaki 4420102550SiwasakiThe globals "DebugLevel" and "DebugLayer" have been renamed 4421102550Siwasaki"AcpiDbgLevel" and "AcpiDbgLayer" respectively. 4422102550Siwasaki 4423102550SiwasakiAll other globals within the subsystem are now prefixed with 4424102550Siwasaki"AcpiGbl_" Internal procedures within the subsystem are now 4425114237Snjlprefixed with "Acpi" (with only a few exceptions). The original 4426114237Snjltwo-letter abbreviation for the subcomponent remains after 4427126372Snjl"Acpi" 4428126372Snjl- for example, CmCallocate became AcpiCmCallocate. 4429102550Siwasaki 4430102550SiwasakiAdded a source code translation/conversion utility. Used to 4431114237Snjlgenerate the Linux source code, it can be modified to generate 4432114237Snjlother types of source as well. Can also be used to cleanup 4433114237Snjlexisting source by removing extraneous spaces and blank lines. 4434114237SnjlFound in tools/acpisrc/* 4435102550Siwasaki 4436102550SiwasakiOsdUnMapMemory was renamed to OsdUnmapMemory and then 4437102550SiwasakiAcpiOsUnmapMemory. (UnMap became Unmap). 4438102550Siwasaki 4439114237SnjlA "MaxUnits" parameter has been added to AcpiOsCreateSemaphore. 4440114237SnjlWhen set to one, this indicates that the caller wants to use the 4441114237Snjlsemaphore as a mutex, not a counting semaphore. ACPI CA uses 4442114237Snjlboth types. However, implementers of this call may want to use 4443114237Snjldifferent OS primitives depending on the type of semaphore 4444114237Snjlrequested. For example, some operating systems provide separate 4445114237Snjl"mutex" and "semaphore" interfaces - where the mutex interface 4446126372Snjlis 4447126372Snjlmuch faster because it doesn't have all the overhead of a full 4448126372Snjlsemaphore implementation. 4449102550Siwasaki 4450104470SiwasakiFixed a deadlock problem where a method that accesses the PCI 4451114237Snjladdress space can block forever if it is the first access to the 4452114237Snjlspace. 4453102550Siwasaki 4454102550Siwasaki------------------------------------------- 4455102550SiwasakiSummary of changes for this label: 06_02_00 4456102550Siwasaki 4457102550SiwasakiSupport for environments that cannot handle unaligned data 4458114237Snjlaccesses (e.g. firmware and OS environments devoid of alignment 4459114237Snjlhandler technology namely SAL/EFI and the IA-64 Linux kernel) 4460126372Snjlhas 4461126372Snjlbeen added (via configurable macros) in these three areas: - 4462114237SnjlTransfer of data from the raw AML byte stream is done via byte 4463114237Snjlmoves instead of word/dword/qword moves. - External objects 4464126372Snjlare 4465126372Snjlaligned within the user buffer, including package elements (sub- 4466126372Snjlobjects). - Conversion of name strings to UINT32 Acpi Names is 4467126372Snjlnow 4468126372Snjldone byte-wise. 4469102550Siwasaki 4470102550SiwasakiThe Store operator was modified to mimic Microsoft's 4471102550Siwasakiimplementation when storing to a Buffer Field. 4472102550Siwasaki 4473102550SiwasakiAdded a check of the BM_STS bit before entering C3. 4474102550Siwasaki 4475114237SnjlThe methods subdirectory has been obsoleted and removed. A new 4476114237Snjlfile, cmeval.c subsumes the functionality. 4477102550Siwasaki 4478102550SiwasakiA 16-bit (DOS) version of AcpiExec has been developed. The 4479102550Siwasakimakefile is under the acpiexec directory. 4480