changes.txt revision 117521
1117521Snjl---------------------------------------- 2117521Snjl19 June 2003. Summary of changes for version 20030619: 3117521Snjl 4117521Snjl1) ACPI CA Core Subsystem: 5117521Snjl 6117521SnjlFix To/FromBCD, eliminating the need for an arch-specific 7117521Snjl#define. 8117521Snjl 9117521SnjlDo not acquire a semaphore in the S5 shutdown path. 10117521Snjl 11117521SnjlFix ex_digits_needed for 0. (Takayoshi Kochi) 12117521Snjl 13117521SnjlFix sleep/stall code reversal. (Andi Kleen) 14117521Snjl 15117521SnjlRevert a change having to do with control method calling 16117521Snjlsemantics. 17117521Snjl 18117521Snjl2) Linux: 19117521Snjl 20117521Snjlacpiphp update (Takayoshi Kochi) 21117521Snjl 22117521SnjlExport acpi_disabled for sonypi (Stelian Pop) 23117521Snjl 24117521SnjlMention acpismp=force in config help 25117521Snjl 26117521SnjlRe-add acpitable.c and acpismp=force. This improves backwards 27117521Snjlcompatibility and also cleans up the code to a significant 28117521Snjldegree. 29117521Snjl 30117521SnjlAdd ASUS Value-add driver (Karol Kozimor and Julien Lerouge) 31117521Snjl 32117521Snjl 33117521Snjl 34117521Snjl---------------------------------------- 35117521Snjl22 May 2003. Summary of changes for version 20030522: 36117521Snjl 37117521Snjl1) ACPI CA Core Subsystem: 38117521Snjl 39117521SnjlFound and fixed a reported problem where an AE_NOT_FOUND error 40117521Snjloccurred occasionally during _BST evaluation. This turned out to 41117521Snjlbe an Owner ID allocation issue where a called method did not get 42117521Snjla new ID assigned to it. Eventually, (after 64k calls), the 43117521SnjlOwner ID UINT16 would wraparound so that the ID would be the same 44117521Snjlas the caller's and the called method would delete the caller's 45117521Snjlnamespace. 46117521Snjl 47117521SnjlImplemented extended error reporting for control methods that are 48117521Snjlaborted due to a run-time exception. Output includes the exact 49117521SnjlAML instruction that caused the method abort, a dump of the 50117521Snjlmethod locals and arguments at the time of the abort, and a trace 51117521Snjlof all nested control method calls. 52117521Snjl 53117521SnjlModified the interpreter to allow the creation of buffers of zero 54117521Snjllength from the AML code. Implemented new code to ensure that no 55117521Snjlattempt is made to actually allocate a memory buffer (of length 56117521Snjlzero) - instead, a simple buffer object with a NULL buffer 57117521Snjlpointer and length zero is created. A warning is no longer 58117521Snjlissued when the AML attempts to create a zero-length buffer. 59117521Snjl 60117521SnjlImplemented a workaround for the "leading asterisk issue" in 61117521Snjl_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading 62117521Snjlasterisk is automatically removed if present in any HID, UID, or 63117521SnjlCID strings. The iASL compiler will still flag this asterisk as 64117521Snjlan error, however. 65117521Snjl 66117521SnjlImplemented full support for _CID methods that return a package 67117521Snjlof multiple CIDs (Compatible IDs). The AcpiGetObjectInfo() 68117521Snjlinterface now additionally returns a device _CID list if present. 69117521SnjlThis required a change to the external interface in order to pass 70117521Snjlan ACPI_BUFFER object as a parameter since the _CID list is of 71117521Snjlvariable length. 72117521Snjl 73117521SnjlFixed a problem with the new AE_SAME_HANDLER exception where 74117521Snjlhandler initialization code did not know about this exception. 75117521Snjl 76117521SnjlCode and Data Size: Current and previous core subsystem library 77117521Snjlsizes are shown below. These are the code and data sizes for the 78117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 79117521Snjlthese values do not include any ACPI driver or OSPM code. The 80117521Snjldebug version of the code includes the debug output trace 81117521Snjlmechanism and has a much larger code and data size. Note that 82117521Snjlthese values will vary depending on the efficiency of the 83117521Snjlcompiler and the compiler options used during generation. 84117521Snjl 85117521Snjl Previous Release (20030509): 86117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 87117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 88117521Snjl Current Release: 89117521Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 90117521Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 91117521Snjl 92117521Snjl 93117521Snjl2) Linux: 94117521Snjl 95117521SnjlFixed a bug in which we would reinitialize the ACPI interrupt 96117521Snjlafter it was already working, thus disabling all ACPI and the 97117521SnjlIRQs for any other device sharing the interrupt. (Thanks to Stian 98117521SnjlJordet) 99117521Snjl 100117521SnjlToshiba driver update (John Belmonte) 101117521Snjl 102117521SnjlReturn only 0 or 1 for our interrupt handler status (Andrew 103117521SnjlMorton) 104117521Snjl 105117521Snjl 106117521Snjl3) iASL Compiler: 107117521Snjl 108117521SnjlFixed a reported problem where multiple (nested) ElseIf() 109117521Snjlstatements were not handled correctly by the compiler, resulting 110117521Snjlin incorrect warnings and incorrect AML code. This was a problem 111117521Snjlin both the ASL parser and the code generator. 112117521Snjl 113117521Snjl 114117521Snjl4) Documentation: 115117521Snjl 116117521SnjlAdded changes to existing interfaces, new exception codes, and 117117521Snjlnew text concerning reference count object management versus 118117521Snjlgarbage collection. 119117521Snjl 120117521Snjl---------------------------------------- 121117521Snjl09 May 2003. Summary of changes for version 20030509. 122117521Snjl 123117521Snjl 124117521Snjl1) ACPI CA Core Subsystem: 125117521Snjl 126117521SnjlChanged the subsystem initialization sequence to hold off 127117521Snjlinstallation of address space handlers until the hardware has 128117521Snjlbeen initialized and the system has entered ACPI mode. This is 129117521Snjlbecause the installation of space handlers can cause _REG methods 130117521Snjlto be run. Previously, the _REG methods could potentially be run 131117521Snjlbefore ACPI mode was enabled. 132117521Snjl 133117521SnjlFixed some memory leak issues related to address space handler 134117521Snjland notify handler installation. There were some problems with 135117521Snjlthe reference count mechanism caused by the fact that the handler 136117521Snjlobjects are shared across several namespace objects. 137117521Snjl 138117521SnjlFixed a reported problem where reference counts within the 139117521Snjlnamespace were not properly updated when named objects created by 140117521Snjlmethod execution were deleted. 141117521Snjl 142117521SnjlFixed a reported problem where multiple SSDTs caused a deletion 143117521Snjlissue during subsystem termination. Restructured the table data 144117521Snjlstructures to simplify the linked lists and the related code. 145117521Snjl 146117521SnjlFixed a problem where the table ID associated with secondary 147117521Snjltables (SSDTs) was not being propagated into the namespace 148117521Snjlobjects created by those tables. This would only present a 149117521Snjlproblem for tables that are unloaded at run-time, however. 150117521Snjl 151117521SnjlUpdated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE 152117521Snjltype as the length parameter (instead of UINT32). 153117521Snjl 154117521SnjlSolved a long-standing problem where an ALREADY_EXISTS error 155117521Snjlappears on various systems. This problem could happen when there 156117521Snjlare multiple PCI_Config operation regions under a single PCI root 157117521Snjlbus. This doesn't happen very frequently, but there are some 158117521Snjlsystems that do this in the ASL. 159117521Snjl 160117521SnjlFixed a reported problem where the internal DeleteNode function 161117521Snjlwas incorrectly handling the case where a namespace node was the 162117521Snjlfirst in the parent's child list, and had additional peers (not 163117521Snjlthe only child, but first in the list of children.) 164117521Snjl 165117521SnjlCode and Data Size: Current core subsystem library sizes are 166117521Snjlshown below. These are the code and data sizes for the 167117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 168117521Snjlthese values do not include any ACPI driver or OSPM code. The 169117521Snjldebug version of the code includes the debug output trace 170117521Snjlmechanism and has a much larger code and data size. Note that 171117521Snjlthese values will vary depending on the efficiency of the 172117521Snjlcompiler and the compiler options used during generation. 173117521Snjl 174117521Snjl Previous Release 175117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 176117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 177117521Snjl Current Release: 178117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 179117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 180117521Snjl 181117521Snjl 182117521Snjl2) Linux: 183117521Snjl 184117521SnjlAllow ":" in OS override string (Ducrot Bruno) 185117521Snjl 186117521SnjlKobject fix (Greg KH) 187117521Snjl 188117521Snjl 189117521Snjl3 iASL Compiler/Disassembler: 190117521Snjl 191117521SnjlFixed a problem in the generation of the C source code files (AML 192117521Snjlis emitted in C source statements for BIOS inclusion) where the 193117521SnjlAscii dump that appears within a C comment at the end of each 194117521Snjlline could cause a compile time error if the AML sequence happens 195117521Snjlto have an open comment or close comment sequence embedded. 196117521Snjl 197117521Snjl 198117521Snjl---------------------------------------- 199117521Snjl24 April 2003. Summary of changes for version 20030424. 200117521Snjl 201117521Snjl 202117521Snjl1) ACPI CA Core Subsystem: 203117521Snjl 204117521SnjlSupport for big-endian systems has been implemented. Most of the 205117521Snjlsupport has been invisibly added behind big-endian versions of 206117521Snjlthe ACPI_MOVE_* macros. 207117521Snjl 208117521SnjlFixed a problem in AcpiHwDisableGpeBlock() and 209117521SnjlAcpiHwClearGpeBlock() where an incorrect offset was passed to the 210117521Snjllow level hardware write routine. The offset parameter was 211117521Snjlactually eliminated from the low level read/write routines 212117521Snjlbecause they had become obsolete. 213117521Snjl 214117521SnjlFixed a problem where a handler object was deleted twice during 215117521Snjlthe removal of a fixed event handler. 216117521Snjl 217117521Snjl 218117521Snjl2) Linux: 219117521Snjl 220117521SnjlA fix for SMP systems with link devices was contributed by 221117521SnjlCompaq's Dan Zink. 222117521Snjl 223117521Snjl(2.5) Return whether we handled the interrupt in our IRQ handler. 224117521Snjl(Linux ISRs no longer return void, so we can propagate the 225117521Snjlhandler return value from the ACPI CA core back to the OS.) 226117521Snjl 227117521Snjl 228117521Snjl3) Documentation: 229117521Snjl 230117521SnjlThe ACPI CA Programmer Reference has been updated to reflect new 231117521Snjlinterfaces and changes to existing interfaces. 232117521Snjl 233117521Snjl---------------------------------------- 234117521Snjl28 March 2003. Summary of changes for version 20030328. 235117521Snjl 236117521Snjl1) ACPI CA Core Subsystem: 237117521Snjl 238117521SnjlThe GPE Block Device support has been completed. New interfaces 239117521Snjlare AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event 240117521Snjlinterfaces (enable, disable, clear, getstatus) have been split 241117521Snjlinto separate interfaces for Fixed Events and General Purpose 242117521SnjlEvents (GPEs) in order to support GPE Block Devices properly. 243117521Snjl 244117521SnjlFixed a problem where the error message "Failed to acquire 245117521Snjlsemaphore" would appear during operations on the embedded 246117521Snjlcontroller (EC). 247117521Snjl 248117521SnjlCode and Data Size: Current core subsystem library sizes are 249117521Snjlshown below. These are the code and data sizes for the 250117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 251117521Snjlthese values do not include any ACPI driver or OSPM code. The 252117521Snjldebug version of the code includes the debug output trace 253117521Snjlmechanism and has a much larger code and data size. Note that 254117521Snjlthese values will vary depending on the efficiency of the 255117521Snjlcompiler and the compiler options used during generation. 256117521Snjl 257117521Snjl Previous Release 258117521Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 259117521Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 260117521Snjl Current Release: 261117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 262117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 263117521Snjl 264117521Snjl 265117521Snjl---------------------------------------- 266114237Snjl28 February 2003. Summary of changes for version 20030228. 267114237Snjl 268114237Snjl 269114237Snjl1) ACPI CA Core Subsystem: 270114237Snjl 271114237SnjlThe GPE handling and dispatch code has been completely overhauled 272114237Snjlin preparation for support of GPE Block Devices (ID ACPI0006). 273114237SnjlThis affects internal data structures and code only; there should 274114237Snjlbe no differences visible externally. One new file has been 275114237Snjladded, evgpeblk.c 276114237Snjl 277114237SnjlThe FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only 278114237Snjlfields that are used to determine the GPE block lengths. The 279114237SnjlREGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address 280114237Snjlstructures are ignored. This is per the ACPI specification but 281114237Snjlit isn't very clear. The full 256 Block 0/1 GPEs are now 282114237Snjlsupported (the use of REGISTER_BIT_WIDTH limited the number of 283114237SnjlGPEs to 128). 284114237Snjl 285114237SnjlIn the SCI interrupt handler, removed the read of the PM1_CONTROL 286114237Snjlregister to look at the SCI_EN bit. On some machines, this read 287114237Snjlcauses an SMI event and greatly slows down SCI events. (This may 288114237Snjlin fact be the cause of slow battery status response on some 289114237Snjlsystems.) 290114237Snjl 291114237SnjlFixed a problem where a store of a NULL string to a package 292114237Snjlobject could cause the premature deletion of the object. This 293114237Snjlwas seen during execution of the battery _BIF method on some 294114237Snjlsystems, resulting in no battery data being returned. 295114237Snjl 296114237SnjlAdded AcpiWalkResources interface to simplify parsing of resource 297114237Snjllists. 298114237Snjl 299114237SnjlCode and Data Size: Current core subsystem library sizes are 300114237Snjlshown below. These are the code and data sizes for the 301114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 302114237Snjlthese values do not include any ACPI driver or OSPM code. The 303114237Snjldebug version of the code includes the debug output trace 304114237Snjlmechanism and has a much larger code and data size. Note that 305114237Snjlthese values will vary depending on the efficiency of the 306114237Snjlcompiler and the compiler options used during generation. 307114237Snjl 308114237Snjl Previous Release 309114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 310114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 311114237Snjl Current Release: 312114237Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 313114237Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 314114237Snjl 315114237Snjl 316114237Snjl2) Linux 317114237Snjl 318114237SnjlS3 fixes (Ole Rohne) 319114237Snjl 320114237SnjlUpdate ACPI PHP driver with to use new acpi_walk_resource API 321114237Snjl(Bjorn Helgaas) 322114237Snjl 323114237SnjlAdd S4BIOS support (Pavel Machek) 324114237Snjl 325114237SnjlMap in entire table before performing checksum (John Stultz) 326114237Snjl 327114237SnjlExpand the mem= cmdline to allow the specification of reserved 328114237Snjland ACPI DATA blocks (Pavel Machek) 329114237Snjl 330114237SnjlNever use ACPI on VISWS 331114237Snjl 332114237SnjlFix derive_pci_id (Ducrot Bruno, Alvaro Lopez) 333114237Snjl 334114237SnjlRevert a change that allowed P_BLK lengths to be 4 or 5. This is 335114237Snjlcausing us to think that some systems support C2 when they really 336114237Snjldon't. 337114237Snjl 338114237SnjlDo not count processor objects for non-present CPUs (Thanks to 339114237SnjlDominik Brodowski) 340114237Snjl 341114237Snjl 342114237Snjl3) iASL Compiler: 343114237Snjl 344114237SnjlFixed a problem where ASL include files could not be found and 345114237Snjlopened. 346114237Snjl 347114237SnjlAdded support for the _PDC reserved name. 348114237Snjl 349114237Snjl 350117521Snjl---------------------------------------- 351114237Snjl22 January 2003. Summary of changes for version 20030122. 352114237Snjl 353114237Snjl 354114237Snjl1) ACPI CA Core Subsystem: 355114237Snjl 356114237SnjlAdded a check for constructs of the form: Store (Local0, Local0) 357114237Snjlwhere Local0 is not initialized. Apparently, some BIOS 358114237Snjlprogrammers believe that this is a NOOP. Since this store 359114237Snjldoesn't do anything anyway, the new prototype behavior will 360114237Snjlignore this error. This is a case where we can relax the strict 361114237Snjlchecking in the interpreter in the name of compatibility. 362114237Snjl 363114237Snjl 364114237Snjl2) Linux 365114237Snjl 366114237SnjlThe AcpiSrc Source Conversion Utility has been released with the 367114237SnjlLinux package for the first time. This is the utility that is 368114237Snjlused to convert the ACPI CA base source code to the Linux 369114237Snjlversion. 370114237Snjl 371114237Snjl(Both) Handle P_BLK lengths shorter than 6 more gracefully 372114237Snjl 373114237Snjl(Both) Move more headers to include/acpi, and delete an unused 374114237Snjlheader. 375114237Snjl 376114237Snjl(Both) Move drivers/acpi/include directory to include/acpi 377114237Snjl 378114237Snjl(Both) Boot functions don't use cmdline, so don't pass it around 379114237Snjl 380114237Snjl(Both) Remove include of unused header (Adrian Bunk) 381114237Snjl 382114237Snjl(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since 383114237Snjlthe 384114237Snjlformer now also includes the latter, acpiphp.h only needs the 385114237Snjlone, now. 386114237Snjl 387114237Snjl(2.5) Make it possible to select method of bios restoring after 388114237SnjlS3 389114237Snjlresume. [=> no more ugly ifdefs] (Pavel Machek) 390114237Snjl 391114237Snjl(2.5) Make proc write interfaces work (Pavel Machek) 392114237Snjl 393114237Snjl(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski) 394114237Snjl 395114237Snjl(2.5) Break out ACPI Perf code into its own module, under cpufreq 396114237Snjl(Dominik Brodowski) 397114237Snjl 398114237Snjl(2.4) S4BIOS support (Ducrot Bruno) 399114237Snjl 400114237Snjl(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio 401114237SnjlVisinoni) 402114237Snjl 403114237Snjl 404114237Snjl3) iASL Compiler: 405114237Snjl 406114237SnjlAdded support to disassemble SSDT and PSDTs. 407114237Snjl 408114237SnjlImplemented support to obtain SSDTs from the Windows registry if 409114237Snjlavailable. 410114237Snjl 411114237Snjl 412102550Siwasaki---------------------------------------- 413114237Snjl09 January 2003. Summary of changes for version 20030109. 414114237Snjl 415114237Snjl1) ACPI CA Core Subsystem: 416114237Snjl 417114237SnjlChanged the behavior of the internal Buffer-to-String conversion 418114237Snjlfunction. The current ACPI specification states that the 419114237Snjlcontents of the buffer are "converted to a string of two- 420114237Snjlcharacter hexadecimal numbers, each separated by a space". 421114237SnjlUnfortunately, this definition is not backwards compatible with 422114237Snjlexisting ACPI 1.0 implementations (although the behavior was not 423114237Snjldefined in the ACPI 1.0 specification). The new behavior simply 424114237Snjlcopies data from the buffer to the string until a null character 425114237Snjlis found or the end of the buffer is reached. The new String 426114237Snjlobject is always null terminated. This problem was seen during 427114237Snjlthe generation of _BIF battery data where incorrect strings were 428114237Snjlreturned for battery type, etc. This will also require an errata 429114237Snjlto the ACPI specification. 430114237Snjl 431114237SnjlRenamed all instances of NATIVE_UINT and NATIVE_INT to 432114237SnjlACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively. 433114237Snjl 434114237SnjlCopyright in all module headers (both Linux and non-Linux) has be 435114237Snjlupdated to 2003. 436114237Snjl 437114237SnjlCode and Data Size: Current core subsystem library sizes are 438114237Snjlshown below. These are the code and data sizes for the 439114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 440114237Snjlthese values do not include any ACPI driver or OSPM code. The 441114237Snjldebug version of the code includes the debug output trace 442114237Snjlmechanism and has a much larger code and data size. Note that 443114237Snjlthese values will vary depending on the efficiency of the 444114237Snjlcompiler and the compiler options used during generation. 445114237Snjl 446114237Snjl Previous Release 447114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 448114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 449114237Snjl Current Release: 450114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 451114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 452114237Snjl 453114237Snjl 454114237Snjl2) Linux 455114237Snjl 456114237SnjlFixed an oops on module insertion/removal (Matthew Tippett) 457114237Snjl 458114237Snjl(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante) 459114237Snjl 460114237Snjl(2.5) Replace pr_debug (Randy Dunlap) 461114237Snjl 462114237Snjl(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski) 463114237Snjl 464114237Snjl(Both) Eliminate spawning of thread from timer callback, in favor 465114237Snjlof schedule_work() 466114237Snjl 467114237Snjl(Both) Show Lid status in /proc (Zdenek OGAR Skalak) 468114237Snjl 469114237Snjl(Both) Added define for Fixed Function HW region (Matthew Wilcox) 470114237Snjl 471114237Snjl(Both) Add missing statics to button.c (Pavel Machek) 472114237Snjl 473114237SnjlSeveral changes have been made to the source code translation 474114237Snjlutility that generates the Linux Code in order to make the code 475114237Snjlmore "Linux-like": 476114237Snjl 477114237SnjlAll typedefs on structs and unions have been removed in keeping 478114237Snjlwith the Linux coding style. 479114237Snjl 480114237SnjlRemoved the non-Linux SourceSafe module revision number from each 481114237Snjlmodule header. 482114237Snjl 483114237SnjlCompleted major overhaul of symbols to be lowercased for linux. 484114237SnjlDoubled the number of symbols that are lowercased. 485114237Snjl 486114237SnjlFixed a problem where identifiers within procedure headers and 487114237Snjlwithin quotes were not fully lower cased (they were left with a 488114237Snjlstarting capital.) 489114237Snjl 490114237SnjlSome C macros whose only purpose is to allow the generation of 16- 491114237Snjlbit code are now completely removed in the Linux code, increasing 492114237Snjlreadability and maintainability. 493114237Snjl 494114237Snjl---------------------------------------- 495114237Snjl 496114237Snjl12 December 2002. Summary of changes for version 20021212. 497114237Snjl 498114237Snjl 499114237Snjl1) ACPI CA Core Subsystem: 500114237Snjl 501114237SnjlFixed a problem where the creation of a zero-length AML Buffer 502114237Snjlwould cause a fault. 503114237Snjl 504114237SnjlFixed a problem where a Buffer object that pointed to a static 505114237SnjlAML buffer (in an ACPI table) could inadvertently be deleted, 506114237Snjlcausing memory corruption. 507114237Snjl 508114237SnjlFixed a problem where a user buffer (passed in to the external 509114237SnjlACPI CA interfaces) could be overwritten if the buffer was too 510114237Snjlsmall to complete the operation, causing memory corruption. 511114237Snjl 512114237SnjlFixed a problem in the Buffer-to-String conversion code where a 513114237Snjlstring of length one was always returned, regardless of the size 514114237Snjlof the input Buffer object. 515114237Snjl 516114237SnjlRemoved the NATIVE_CHAR data type across the entire source due to 517114237Snjllack of need and lack of consistent use. 518114237Snjl 519114237SnjlCode and Data Size: Current core subsystem library sizes are 520114237Snjlshown below. These are the code and data sizes for the 521114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 522114237Snjlthese values do not include any ACPI driver or OSPM code. The 523114237Snjldebug version of the code includes the debug output trace 524114237Snjlmechanism and has a much larger code and data size. Note that 525114237Snjlthese values will vary depending on the efficiency of the 526114237Snjlcompiler and the compiler options used during generation. 527114237Snjl 528114237Snjl Previous Release 529114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 530114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 531114237Snjl Current Release: 532114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 533114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 534114237Snjl 535114237Snjl 536114237Snjl---------------------------------------- 537114237Snjl05 December 2002. Summary of changes for version 20021205. 538114237Snjl 539114237Snjl1) ACPI CA Core Subsystem: 540114237Snjl 541114237SnjlFixed a problem where a store to a String or Buffer object could 542114237Snjlcause corruption of the DSDT if the object type being stored was 543114237Snjlthe same as the target object type and the length of the object 544114237Snjlbeing stored was equal to or smaller than the original (existing) 545114237Snjltarget object. This was seen to cause corruption of battery _BIF 546114237Snjlbuffers if the _BIF method modified the buffer on the fly. 547114237Snjl 548114237SnjlFixed a problem where an internal error was generated if a 549114237Snjlcontrol method invocation was used in an OperationRegion, Buffer, 550114237Snjlor Package declaration. This was caused by the deferred parsing 551114237Snjlof the control method and thus the deferred creation of the 552114237Snjlinternal method object. The solution to this problem was to 553114237Snjlcreate the internal method object at the moment the method is 554114237Snjlencountered in the first pass - so that subsequent references to 555114237Snjlthe method will able to obtain the required parameter count and 556114237Snjlthus properly parse the method invocation. This problem 557114237Snjlpresented itself as an AE_AML_INTERNAL during the pass 1 parse 558114237Snjlphase during table load. 559114237Snjl 560114237SnjlFixed a problem where the internal String object copy routine did 561114237Snjlnot always allocate sufficient memory for the target String 562114237Snjlobject and caused memory corruption. This problem was seen to 563114237Snjlcause "Allocation already present in list!" errors as memory 564114237Snjlallocation became corrupted. 565114237Snjl 566114237SnjlImplemented a new function for the evaluation of namespace 567114237Snjlobjects that allows the specification of the allowable return 568114237Snjlobject types. This simplifies a lot of code that checks for a 569114237Snjlreturn object of one or more specific objects returned from the 570114237Snjlevaluation (such as _STA, etc.) This may become and external 571114237Snjlfunction if it would be useful to ACPI-related drivers. 572114237Snjl 573114237SnjlCompleted another round of prefixing #defines with "ACPI_" for 574114237Snjlclarity. 575114237Snjl 576114237SnjlCompleted additional code restructuring to allow more modular 577114237Snjllinking for iASL compiler and AcpiExec. Several files were split 578114237Snjlcreating new files. New files: nsparse.c dsinit.c evgpe.c 579114237Snjl 580114237SnjlImplemented an abort mechanism to terminate an executing control 581114237Snjlmethod via the AML debugger. This feature is useful for 582114237Snjldebugging control methods that depend (wait) for specific 583114237Snjlhardware responses. 584114237Snjl 585114237SnjlCode and Data Size: Current core subsystem library sizes are 586114237Snjlshown below. These are the code and data sizes for the 587114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 588114237Snjlthese values do not include any ACPI driver or OSPM code. The 589114237Snjldebug version of the code includes the debug output trace 590114237Snjlmechanism and has a much larger code and data size. Note that 591114237Snjlthese values will vary depending on the efficiency of the 592114237Snjlcompiler and the compiler options used during generation. 593114237Snjl 594114237Snjl Previous Release 595114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 596114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 597114237Snjl Current Release: 598114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 599114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 600114237Snjl 601114237Snjl 602114237Snjl2) iASL Compiler/Disassembler 603114237Snjl 604114237SnjlFixed a compiler code generation problem for "Interrupt" Resource 605114237SnjlDescriptors. If specified in the ASL, the optional "Resource 606114237SnjlSource Index" and "Resource Source" fields were not inserted into 607114237Snjlthe correct location within the AML resource descriptor, creating 608114237Snjlan invalid descriptor. 609114237Snjl 610114237SnjlFixed a disassembler problem for "Interrupt" resource 611114237Snjldescriptors. The optional "Resource Source Index" and "Resource 612114237SnjlSource" fields were ignored. 613114237Snjl 614114237Snjl 615114237Snjl---------------------------------------- 616114237Snjl22 November 2002. Summary of changes for version 20021122. 617114237Snjl 618114237Snjl 619114237Snjl1) ACPI CA Core Subsystem: 620114237Snjl 621114237SnjlFixed a reported problem where an object stored to a Method Local 622114237Snjlor Arg was not copied to a new object during the store - the 623114237Snjlobject pointer was simply copied to the Local/Arg. This caused 624114237Snjlall subsequent operations on the Local/Arg to also affect the 625114237Snjloriginal source of the store operation. 626114237Snjl 627114237SnjlFixed a problem where a store operation to a Method Local or Arg 628114237Snjlwas not completed properly if the Local/Arg contained a reference 629114237Snjl(from RefOf) to a named field. The general-purpose store-to- 630114237Snjlnamespace-node code is now used so that this case is handled 631114237Snjlautomatically. 632114237Snjl 633114237SnjlFixed a problem where the internal object copy routine would 634114237Snjlcause a protection fault if the object being copied was a Package 635114237Snjland contained either 1) a NULL package element or 2) a nested sub- 636114237Snjlpackage. 637114237Snjl 638114237SnjlFixed a problem with the GPE initialization that resulted from an 639114237Snjlambiguity in the ACPI specification. One section of the 640114237Snjlspecification states that both the address and length of the GPE 641114237Snjlblock must be zero if the block is not supported. Another 642114237Snjlsection implies that only the address need be zero if the block 643114237Snjlis not supported. The code has been changed so that both the 644114237Snjladdress and the length must be non-zero to indicate a valid GPE 645114237Snjlblock (i.e., if either the address or the length is zero, the GPE 646114237Snjlblock is invalid.) 647114237Snjl 648114237SnjlCode and Data Size: Current core subsystem library sizes are 649114237Snjlshown below. These are the code and data sizes for the 650114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 651114237Snjlthese values do not include any ACPI driver or OSPM code. The 652114237Snjldebug version of the code includes the debug output trace 653114237Snjlmechanism and has a much larger code and data size. Note that 654114237Snjlthese values will vary depending on the efficiency of the 655114237Snjlcompiler and the compiler options used during generation. 656114237Snjl 657114237Snjl Previous Release 658114237Snjl Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 659114237Snjl Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 660114237Snjl Current Release: 661114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 662114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 663114237Snjl 664114237Snjl 665114237Snjl2) Linux 666114237Snjl 667114237SnjlCleaned up EC driver. Exported an external EC read/write 668114237Snjlinterface. By going through this, other drivers (most notably 669114237Snjlsonypi) will be able to serialize access to the EC. 670114237Snjl 671114237Snjl 672114237Snjl3) iASL Compiler/Disassembler 673114237Snjl 674114237SnjlImplemented support to optionally generate include files for both 675114237SnjlASM and C (the -i switch). This simplifies BIOS development by 676114237Snjlautomatically creating include files that contain external 677114237Snjldeclarations for the symbols that are created within the 678114237Snjl(optionally generated) ASM and C AML source files. 679114237Snjl 680114237Snjl 681114237Snjl---------------------------------------- 682107325Siwasaki15 November 2002. Summary of changes for version 20021115. 683104470Siwasaki 684107325Siwasaki1) ACPI CA Core Subsystem: 685107325Siwasaki 686114237SnjlFixed a memory leak problem where an error during resolution of 687114237Snjlmethod arguments during a method invocation from another method 688114237Snjlfailed to cleanup properly by deleting all successfully resolved 689114237Snjlargument objects. 690107325Siwasaki 691114237SnjlFixed a problem where the target of the Index() operator was not 692114237Snjlcorrectly constructed if the source object was a package. This 693114237Snjlproblem has not been detected because the use of a target operand 694114237Snjlwith Index() is very rare. 695107325Siwasaki 696107325SiwasakiFixed a problem with the Index() operator where an attempt was 697107325Siwasakimade to delete the operand objects twice. 698107325Siwasaki 699107325SiwasakiFixed a problem where an attempt was made to delete an operand 700114237Snjltwice during execution of the CondRefOf() operator if the target 701114237Snjldid not exist. 702107325Siwasaki 703114237SnjlImplemented the first of perhaps several internal create object 704114237Snjlfunctions that create and initialize a specific object type. 705114237SnjlThis consolidates duplicated code wherever the object is created, 706114237Snjlthus shrinking the size of the subsystem. 707107325Siwasaki 708114237SnjlImplemented improved debug/error messages for errors that occur 709114237Snjlduring nested method invocations. All executing method pathnames 710114237Snjlare displayed (with the error) as the call stack is unwound - 711114237Snjlthus simplifying debug. 712107325Siwasaki 713107325SiwasakiFixed a problem introduced in the 10/02 release that caused 714114237Snjlpremature deletion of a buffer object if a buffer was used as an 715114237SnjlASL operand where an integer operand is required (Thus causing an 716114237Snjlimplicit object conversion from Buffer to Integer.) The change 717114237Snjlin the 10/02 release was attempting to fix a memory leak (albeit 718114237Snjlincorrectly.) 719107325Siwasaki 720107325SiwasakiCode and Data Size: Current core subsystem library sizes are 721107325Siwasakishown below. These are the code and data sizes for the 722114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 723114237Snjlthese values do not include any ACPI driver or OSPM code. The 724114237Snjldebug version of the code includes the debug output trace 725107325Siwasakimechanism and has a much larger code and data size. Note that 726107325Siwasakithese values will vary depending on the efficiency of the 727107325Siwasakicompiler and the compiler options used during generation. 728107325Siwasaki 729107325Siwasaki Previous Release 730107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 731107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 732107325Siwasaki Current Release: 733107325Siwasaki Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 734107325Siwasaki Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 735107325Siwasaki 736107325Siwasaki 737107325Siwasaki2) Linux 738107325Siwasaki 739114237SnjlChanged the implementation of the ACPI semaphores to use down() 740114237Snjlinstead of down_interruptable(). It is important that the 741114237Snjlexecution of ACPI control methods not be interrupted by signals. 742114237SnjlMethods must run to completion, or the system may be left in an 743114237Snjlunknown/unstable state. 744107325Siwasaki 745107325SiwasakiFixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not 746107325Siwasakiset. (Shawn Starr) 747107325Siwasaki 748107325Siwasaki 749107325Siwasaki3) iASL Compiler/Disassembler 750107325Siwasaki 751107325Siwasaki 752114237SnjlChanged the default location of output files. All output files 753114237Snjlare now placed in the current directory by default instead of in 754114237Snjlthe directory of the source file. This change may affect some 755114237Snjlexisting makefiles, but it brings the behavior of the compiler in 756114237Snjlline with other similar tools. The location of the output files 757114237Snjlcan be overridden with the -p command line switch. 758107325Siwasaki 759114237Snjl 760107325Siwasaki---------------------------------------- 761107325Siwasaki11 November 2002. Summary of changes for version 20021111. 762107325Siwasaki 763107325Siwasaki 764114237Snjl0) ACPI Specification 2.0B is released and is now available at: 765114237Snjlhttp://www.acpi.info/index.html 766107325Siwasaki 767107325Siwasaki 768107325Siwasaki1) ACPI CA Core Subsystem: 769107325Siwasaki 770107325SiwasakiImplemented support for the ACPI 2.0 SMBus Operation Regions. 771114237SnjlThis includes the early detection and handoff of the request to 772114237Snjlthe SMBus region handler (avoiding all of the complex field 773107325Siwasakisupport code), and support for the bidirectional return packet 774107325Siwasakifrom an SMBus write operation. This paves the way for the 775107325Siwasakidevelopment of SMBus drivers in each host operating system. 776107325Siwasaki 777107325SiwasakiFixed a problem where the semaphore WAIT_FOREVER constant was 778107325Siwasakidefined as 32 bits, but must be 16 bits according to the ACPI 779107325Siwasakispecification. This had the side effect of causing ASL 780107325SiwasakiMutex/Event timeouts even though the ASL code requested a wait 781107325Siwasakiforever. Changed all internal references to the ACPI timeout 782107325Siwasakiparameter to 16 bits to prevent future problems. Changed the 783107325Siwasakiname of WAIT_FOREVER to ACPI_WAIT_FOREVER. 784107325Siwasaki 785107325SiwasakiCode and Data Size: Current core subsystem library sizes are 786107325Siwasakishown below. These are the code and data sizes for the 787114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 788114237Snjlthese values do not include any ACPI driver or OSPM code. The 789114237Snjldebug version of the code includes the debug output trace 790107325Siwasakimechanism and has a much larger code and data size. Note that 791107325Siwasakithese values will vary depending on the efficiency of the 792107325Siwasakicompiler and the compiler options used during generation. 793107325Siwasaki 794107325Siwasaki Previous Release 795107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 796107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 797107325Siwasaki Current Release: 798107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 799107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 800107325Siwasaki 801107325Siwasaki 802107325Siwasaki2) Linux 803107325Siwasaki 804107325SiwasakiModule loading/unloading fixes (John Cagle) 805107325Siwasaki 806107325Siwasaki 807107325Siwasaki3) iASL Compiler/Disassembler 808107325Siwasaki 809107325SiwasakiAdded support for the SMBBlockProcessCall keyword (ACPI 2.0) 810107325Siwasaki 811107325SiwasakiImplemented support for the disassembly of all SMBus protocol 812107325Siwasakikeywords (SMBQuick, SMBWord, etc.) 813107325Siwasaki 814107325Siwasaki---------------------------------------- 815107325Siwasaki01 November 2002. Summary of changes for version 20021101. 816107325Siwasaki 817107325Siwasaki 818107325Siwasaki1) ACPI CA Core Subsystem: 819107325Siwasaki 820107325SiwasakiFixed a problem where platforms that have a GPE1 block but no 821114237SnjlGPE0 block were not handled correctly. This resulted in a "GPE 822114237Snjloverlap" error message. GPE0 is no longer required. 823107325Siwasaki 824107325SiwasakiRemoved code added in the previous release that inserted nodes 825114237Snjlinto the namespace in alphabetical order. This caused some side- 826114237Snjleffects on various machines. The root cause of the problem is 827114237Snjlstill under investigation since in theory, the internal ordering 828114237Snjlof the namespace nodes should not matter. 829107325Siwasaki 830107325Siwasaki 831114237SnjlEnhanced error reporting for the case where a named object is not 832114237Snjlfound during control method execution. The full ACPI namepath 833114237Snjl(name reference) of the object that was not found is displayed in 834114237Snjlthis case. 835107325Siwasaki 836114237SnjlNote: as a result of the overhaul of the namespace object types 837114237Snjlin the previous release, the namespace nodes for the predefined 838114237Snjlscopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE 839114237Snjlinstead of ACPI_TYPE_ANY. This simplifies the namespace 840114237Snjlmanagement code but may affect code that walks the namespace tree 841114237Snjllooking for specific object types. 842114237Snjl 843107325SiwasakiCode and Data Size: Current core subsystem library sizes are 844107325Siwasakishown below. These are the code and data sizes for the 845114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 846114237Snjlthese values do not include any ACPI driver or OSPM code. The 847114237Snjldebug version of the code includes the debug output trace 848107325Siwasakimechanism and has a much larger code and data size. Note that 849107325Siwasakithese values will vary depending on the efficiency of the 850107325Siwasakicompiler and the compiler options used during generation. 851107325Siwasaki 852107325Siwasaki Previous Release 853107325Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 854107325Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 855107325Siwasaki Current Release: 856107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 857107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 858107325Siwasaki 859107325Siwasaki 860107325Siwasaki2) Linux 861107325Siwasaki 862107325SiwasakiFixed a problem introduced in the previous release where the 863114237SnjlProcessor and Thermal objects were not recognized and installed 864114237Snjlin /proc. This was related to the scope type change described 865114237Snjlabove. 866107325Siwasaki 867107325Siwasaki 868107325Siwasaki3) iASL Compiler/Disassembler 869107325Siwasaki 870114237SnjlImplemented the -g option to get all of the required ACPI tables 871114237Snjlfrom the registry and save them to files (Windows version of the 872114237Snjlcompiler only.) The required tables are the FADT, FACS, and 873114237SnjlDSDT. 874107325Siwasaki 875114237SnjlAdded ACPI table checksum validation during table disassembly in 876114237Snjlorder to catch corrupted tables. 877107325Siwasaki 878107325Siwasaki 879107325Siwasaki---------------------------------------- 880107325Siwasaki22 October 2002. Summary of changes for version 20021022. 881107325Siwasaki 882107325Siwasaki1) ACPI CA Core Subsystem: 883107325Siwasaki 884114237SnjlImplemented a restriction on the Scope operator that the target 885114237Snjlmust already exist in the namespace at the time the operator is 886114237Snjlencountered (during table load or method execution). In other 887114237Snjlwords, forward references are not allowed and Scope() cannot 888114237Snjlcreate a new object. This changes the previous behavior where the 889114237Snjlinterpreter would create the name if not found. This new 890114237Snjlbehavior correctly enables the search-to-root algorithm during 891114237Snjlnamespace lookup of the target name. Because of this upsearch, 892114237Snjlthis fixes the known Compaq _SB_.OKEC problem and makes both the 893114237SnjlAML interpreter and iASL compiler compatible with other ACPI 894114237Snjlimplementations. 895107325Siwasaki 896114237SnjlCompleted a major overhaul of the internal ACPI object types for 897114237Snjlthe ACPI Namespace and the associated operand objects. Many of 898114237Snjlthese types had become obsolete with the introduction of the two- 899114237Snjlpass namespace load. This cleanup simplifies the code and makes 900114237Snjlthe entire namespace load mechanism much clearer and easier to 901114237Snjlunderstand. 902107325Siwasaki 903114237SnjlImproved debug output for tracking scope opening/closing to help 904114237Snjldiagnose scoping issues. The old scope name as well as the new 905114237Snjlscope name are displayed. Also improved error messages for 906114237Snjlproblems with ASL Mutex objects and error messages for GPE 907114237Snjlproblems. 908107325Siwasaki 909107325SiwasakiCleaned up the namespace dump code, removed obsolete code. 910107325Siwasaki 911114237SnjlAll string output (for all namespace/object dumps) now uses the 912114237Snjlcommon ACPI string output procedure which handles escapes 913107325Siwasakiproperly and does not emit non-printable characters. 914107325Siwasaki 915107325SiwasakiFixed some issues with constants in the 64-bit version of the 916107325Siwasakilocal C library (utclib.c) 917107325Siwasaki 918107325Siwasaki 919107325Siwasaki2) Linux 920107325Siwasaki 921107325SiwasakiEC Driver: No longer attempts to acquire the Global Lock at 922107325Siwasakiinterrupt level. 923107325Siwasaki 924107325Siwasaki 925107325Siwasaki3) iASL Compiler/Disassembler 926107325Siwasaki 927107325SiwasakiImplemented ACPI 2.0B grammar change that disallows all Type 1 928114237Snjland 2 opcodes outside of a control method. This means that the 929114237Snjl"executable" operators (versus the "namespace" operators) cannot 930114237Snjlbe used at the table level; they can only be used within a 931114237Snjlcontrol method. 932107325Siwasaki 933107325SiwasakiImplemented the restriction on the Scope() operator where the 934107325Siwasakitarget must already exist in the namespace at the time the 935114237Snjloperator is encountered (during ASL compilation). In other words, 936114237Snjlforward references are not allowed and Scope() cannot create a 937114237Snjlnew object. This makes the iASL compiler compatible with other 938114237SnjlACPI implementations and makes the Scope() implementation adhere 939114237Snjlto the ACPI specification. 940107325Siwasaki 941107325SiwasakiFixed a problem where namepath optimization for the Alias 942107325Siwasakioperator was optimizing the wrong path (of the two namepaths.) 943107325SiwasakiThis caused a "Missing alias link" error message. 944107325Siwasaki 945114237SnjlFixed a problem where an "unknown reserved name" warning could be 946114237Snjlincorrectly generated for names like "_SB" when the trailing 947114237Snjlunderscore is not used in the original ASL. 948107325Siwasaki 949107325SiwasakiFixed a problem where the reserved name check did not handle 950114237SnjlNamePaths with multiple NameSegs correctly. The first nameseg of 951114237Snjlthe NamePath was examined instead of the last NameSeg. 952107325Siwasaki 953107325Siwasaki 954107325Siwasaki---------------------------------------- 955107325Siwasaki 956104470Siwasaki02 October 2002. Summary of changes for this release. 957104470Siwasaki 958104470Siwasaki 959104470Siwasaki1) ACPI CA Core Subsystem version 20021002: 960104470Siwasaki 961104470SiwasakiFixed a problem where a store/copy of a string to an existing 962104470Siwasakistring did not always set the string length properly in the 963104470SiwasakiString object. 964104470Siwasaki 965104470SiwasakiFixed a reported problem with the ToString operator where the 966104470Siwasakibehavior was identical to the ToHexString operator instead of 967104470Siwasakijust simply converting a raw buffer to a string data type. 968104470Siwasaki 969104470SiwasakiFixed a problem where CopyObject and the other "explicit" 970104470Siwasakiconversion operators were not updating the internal namespace 971104470Siwasakinode type as part of the store operation. 972104470Siwasaki 973104470SiwasakiFixed a memory leak during implicit source operand conversion 974114237Snjlwhere the original object was not deleted if it was converted to 975114237Snjla new object of a different type. 976104470Siwasaki 977104470SiwasakiEnhanced error messages for all problems associated with 978104470Siwasakinamespace lookups. Common procedure generates and prints the 979104470Siwasakilookup name as well as the formatted status. 980104470Siwasaki 981104470SiwasakiCompleted implementation of a new design for the Alias support 982104470Siwasakiwithin the namespace. The existing design did not handle the 983114237Snjlcase where a new object was assigned to one of the two names due 984114237Snjlto the use of an explicit conversion operator, resulting in the 985114237Snjltwo names pointing to two different objects. The new design 986114237Snjlsimply points the Alias name to the original name node - not to 987114237Snjlthe object. This results in a level of indirection that must be 988114237Snjlhandled in the name resolution mechanism. 989104470Siwasaki 990104470SiwasakiCode and Data Size: Current core subsystem library sizes are 991104470Siwasakishown below. These are the code and data sizes for the 992114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 993114237Snjlthese values do not include any ACPI driver or OSPM code. The 994114237Snjldebug version of the code includes the debug output trace 995114237Snjlmechanism and has a larger code and data size. Note that these 996114237Snjlvalues will vary depending on the efficiency of the compiler and 997114237Snjlthe compiler options used during generation. 998104470Siwasaki 999104470Siwasaki Previous Release 1000104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 1001104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 1002104470Siwasaki Current Release: 1003104470Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 1004104470Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 1005104470Siwasaki 1006104470Siwasaki 1007104470Siwasaki2) Linux 1008104470Siwasaki 1009104470SiwasakiInitialize thermal driver's timer before it is used. (Knut 1010104470SiwasakiNeumann) 1011104470Siwasaki 1012104470SiwasakiAllow handling negative celsius values. (Kochi Takayoshi) 1013104470Siwasaki 1014114237SnjlFix thermal management and make trip points. R/W (Pavel Machek) 1015104470Siwasaki 1016104470SiwasakiFix /proc/acpi/sleep. (P. Christeas) 1017104470Siwasaki 1018104470SiwasakiIA64 fixes. (David Mosberger) 1019104470Siwasaki 1020104470SiwasakiFix reversed logic in blacklist code. (Sergio Monteiro Basto) 1021104470Siwasaki 1022104470SiwasakiReplace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik 1023104470SiwasakiBrodowski) 1024104470Siwasaki 1025104470Siwasaki 1026104470Siwasaki3) iASL Compiler/Disassembler 1027104470Siwasaki 1028104470SiwasakiClarified some warning/error messages. 1029104470Siwasaki 1030104470Siwasaki 1031104470Siwasaki---------------------------------------- 1032104470Siwasaki18 September 2002. Summary of changes for this release. 1033104470Siwasaki 1034104470Siwasaki 1035104470Siwasaki1) ACPI CA Core Subsystem version 20020918: 1036104470Siwasaki 1037114237SnjlFixed a reported problem with reference chaining (via the Index() 1038114237Snjland RefOf() operators) in the ObjectType() and SizeOf() 1039114237Snjloperators. The definition of these operators includes the 1040114237Snjldereferencing of all chained references to return information on 1041114237Snjlthe base object. 1042104470Siwasaki 1043104470SiwasakiFixed a problem with stores to indexed package elements - the 1044104470Siwasakiexisting code would not complete the store if an "implicit 1045114237Snjlconversion" was not performed. In other words, if the existing 1046114237Snjlobject (package element) was to be replaced completely, the code 1047114237Snjldidn't handle this case. 1048104470Siwasaki 1049104470SiwasakiRelaxed typechecking on the ASL "Scope" operator to allow the 1050104470Siwasakitarget name to refer to an object of type Integer, String, or 1051104470SiwasakiBuffer, in addition to the scoping object types (Device, 1052104470Siwasakipredefined Scopes, Processor, PowerResource, and ThermalZone.) 1053114237SnjlThis allows existing AML code that has workarounds for a bug in 1054114237SnjlWindows to function properly. A warning is issued, however. 1055114237SnjlThis affects both the AML interpreter and the iASL compiler. 1056114237SnjlBelow is an example of this type of ASL code: 1057104470Siwasaki 1058104470Siwasaki Name(DEB,0x00) 1059104470Siwasaki Scope(DEB) 1060104470Siwasaki { 1061104470Siwasaki 1062114237SnjlFixed some reported problems with 64-bit integer support in the 1063114237Snjllocal implementation of C library functions (clib.c) 1064104470Siwasaki 1065104470Siwasaki 1066104470Siwasaki2) Linux 1067104470Siwasaki 1068104470SiwasakiUse ACPI fix map region instead of IOAPIC region, since it is 1069104470Siwasakiundefined in non-SMP. 1070104470Siwasaki 1071114237SnjlEnsure that the SCI has the proper polarity and trigger, even on 1072114237Snjlsystems that do not have an interrupt override entry in the MADT. 1073104470Siwasaki 1074104470Siwasaki2.5 big driver reorganization (Pat Mochel) 1075104470Siwasaki 1076104470SiwasakiUse early table mapping code from acpitable.c (Andi Kleen) 1077104470Siwasaki 1078104470SiwasakiNew blacklist entries (Andi Kleen) 1079104470Siwasaki 1080114237SnjlBlacklist improvements. Split blacklist code out into a separate 1081114237Snjlfile. Move checking the blacklist to very early. Previously, we 1082114237Snjlwould use ACPI tables, and then halfway through init, check the 1083114237Snjlblacklist -- too late. Now, it's early enough to completely fall- 1084114237Snjlback to non-ACPI. 1085104470Siwasaki 1086104470Siwasaki 1087104470Siwasaki3) iASL Compiler/Disassembler version 20020918: 1088104470Siwasaki 1089114237SnjlFixed a problem where the typechecking code didn't know that an 1090114237Snjlalias could point to a method. In other words, aliases were not 1091114237Snjlbeing dereferenced during typechecking. 1092104470Siwasaki 1093104470Siwasaki 1094104470Siwasaki---------------------------------------- 1095104470Siwasaki29 August 2002. Summary of changes for this release. 1096104470Siwasaki 1097104470Siwasaki1) ACPI CA Core Subsystem Version 20020829: 1098104470Siwasaki 1099114237SnjlIf the target of a Scope() operator already exists, it must be an 1100114237Snjlobject type that actually opens a scope -- such as a Device, 1101114237SnjlMethod, Scope, etc. This is a fatal runtime error. Similar 1102114237Snjlerror check has been added to the iASL compiler also. 1103104470Siwasaki 1104114237SnjlTightened up the namespace load to disallow multiple names in the 1105114237Snjlsame scope. This previously was allowed if both objects were of 1106114237Snjlthe same type. (i.e., a lookup was the same as entering a new 1107114237Snjlname). 1108104470Siwasaki 1109104470Siwasaki 1110104470Siwasaki2) Linux 1111104470Siwasaki 1112104470SiwasakiEnsure that the ACPI interrupt has the proper trigger and 1113104470Siwasakipolarity. 1114104470Siwasaki 1115104470Siwasakilocal_irq_disable is extraneous. (Matthew Wilcox) 1116104470Siwasaki 1117104470SiwasakiMake "acpi=off" actually do what it says, and not use the ACPI 1118104470Siwasakiinterpreter *or* the tables. 1119104470Siwasaki 1120104470SiwasakiAdded arch-neutral support for parsing SLIT and SRAT tables 1121104470Siwasaki(Kochi Takayoshi) 1122104470Siwasaki 1123104470Siwasaki 1124104470Siwasaki3) iASL Compiler/Disassembler Version 20020829: 1125104470Siwasaki 1126104470SiwasakiImplemented namepath optimization for name declarations. For 1127104470Siwasakiexample, a declaration like "Method (\_SB_.ABCD)" would get 1128104470Siwasakioptimized to "Method (ABCD)" if the declaration is within the 1129104470Siwasaki\_SB_ scope. This optimization is in addition to the named 1130104470Siwasakireference path optimization first released in the previous 1131114237Snjlversion. This would seem to complete all possible optimizations 1132114237Snjlfor namepaths within the ASL/AML. 1133104470Siwasaki 1134114237SnjlIf the target of a Scope() operator already exists, it must be an 1135114237Snjlobject type that actually opens a scope -- such as a Device, 1136114237SnjlMethod, Scope, etc. 1137104470Siwasaki 1138114237SnjlImplemented a check and warning for unreachable code in the same 1139114237Snjlblock below a Return() statement. 1140104470Siwasaki 1141114237SnjlFixed a problem where the listing file was not generated if the 1142114237Snjlcompiler aborted if the maximum error count was exceeded (200). 1143104470Siwasaki 1144104470SiwasakiFixed a problem where the typechecking of method return values 1145114237Snjlwas broken. This includes the check for a return value when the 1146114237Snjlmethod is invoked as a TermArg (a return value is expected.) 1147104470Siwasaki 1148104470SiwasakiFixed a reported problem where EOF conditions during a quoted 1149104470Siwasakistring or comment caused a fault. 1150104470Siwasaki 1151104470Siwasaki 1152104470Siwasaki---------------------------------------- 1153102550Siwasaki15 August 2002. Summary of changes for this release. 1154102550Siwasaki 1155102550Siwasaki1) ACPI CA Core Subsystem Version 20020815: 1156102550Siwasaki 1157114237SnjlFixed a reported problem where a Store to a method argument that 1158114237Snjlcontains a reference did not perform the indirect store 1159114237Snjlcorrectly. This problem was created during the conversion to the 1160114237Snjlnew reference object model - the indirect store to a method 1161114237Snjlargument code was not updated to reflect the new model. 1162102550Siwasaki 1163114237SnjlReworked the ACPI mode change code to better conform to ACPI 2.0, 1164114237Snjlhandle corner cases, and improve code legibility (Kochi 1165102550SiwasakiTakayoshi) 1166102550Siwasaki 1167102550SiwasakiFixed a problem with the pathname parsing for the carat (^) 1168114237Snjlprefix. The heavy use of the carat operator by the new namepath 1169114237Snjloptimization in the iASL compiler uncovered a problem with the 1170114237SnjlAML interpreter handling of this prefix. In the case where one 1171114237Snjlor more carats precede a single nameseg, the nameseg was treated 1172114237Snjlas standalone and the search rule (to root) was inadvertently 1173114237Snjlapplied. This could cause both the iASL compiler and the 1174114237Snjlinterpreter to find the wrong object or to miss the error that 1175114237Snjlshould occur if the object does not exist at that exact pathname. 1176102550Siwasaki 1177114237SnjlFound and fixed the problem where the HP Pavilion DSDT would not 1178114237Snjlload. This was a relatively minor tweak to the table loading 1179114237Snjlcode (a problem caused by the unexpected encounter with a method 1180114237Snjlinvocation not within a control method), but it does not solve 1181114237Snjlthe overall issue of the execution of AML code at the table 1182114237Snjllevel. This investigation is still ongoing. 1183102550Siwasaki 1184102550SiwasakiCode and Data Size: Current core subsystem library sizes are 1185102550Siwasakishown below. These are the code and data sizes for the 1186114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 1187114237Snjlthese values do not include any ACPI driver or OSPM code. The 1188114237Snjldebug version of the code includes the debug output trace 1189114237Snjlmechanism and has a larger code and data size. Note that these 1190114237Snjlvalues will vary depending on the efficiency of the compiler and 1191114237Snjlthe compiler options used during generation. 1192102550Siwasaki 1193102550Siwasaki Previous Release 1194104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 1195104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 1196102550Siwasaki Current Release: 1197104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 1198104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 1199102550Siwasaki 1200102550Siwasaki 1201102550Siwasaki2) Linux 1202102550Siwasaki 1203102550SiwasakiRemove redundant slab.h include (Brad Hards) 1204102550Siwasaki 1205102550SiwasakiFix several bugs in thermal.c (Herbert Nachtnebel) 1206102550Siwasaki 1207102550SiwasakiMake CONFIG_ACPI_BOOT work properly (Pavel Machek) 1208102550Siwasaki 1209104470SiwasakiChange acpi_system_suspend to use updated irq functions (Pavel 1210104470SiwasakiMachek) 1211102550Siwasaki 1212102550SiwasakiExport acpi_get_firmware_table (Matthew Wilcox) 1213102550Siwasaki 1214102550SiwasakiUse proper root proc entry for ACPI (Kochi Takayoshi) 1215102550Siwasaki 1216102550SiwasakiFix early-boot table parsing (Bjorn Helgaas) 1217102550Siwasaki 1218102550Siwasaki 1219102550Siwasaki3) iASL Compiler/Disassembler 1220102550Siwasaki 1221114237SnjlReworked the compiler options to make them more consistent and to 1222114237Snjluse two-letter options where appropriate. We were running out of 1223114237Snjlsensible letters. This may break some makefiles, so check the 1224114237Snjlcurrent options list by invoking the compiler with no parameters. 1225102550Siwasaki 1226102550SiwasakiCompleted the design and implementation of the ASL namepath 1227114237Snjloptimization option for the compiler. This option optimizes all 1228114237Snjlreferences to named objects to the shortest possible path. The 1229114237Snjlfirst attempt tries to utilize a single nameseg (4 characters) 1230114237Snjland the "search-to-root" algorithm used by the interpreter. If 1231114237Snjlthat cannot be used (because either the name is not in the search 1232114237Snjlpath or there is a conflict with another object with the same 1233114237Snjlname), the pathname is optimized using the carat prefix (usually 1234114237Snjla shorter string than specifying the entire path from the root.) 1235102550Siwasaki 1236114237SnjlImplemented support to obtain the DSDT from the Windows registry 1237114237Snjl(when the disassembly option is specified with no input file). 1238114237SnjlAdded this code as the implementation for AcpiOsTableOverride in 1239114237Snjlthe Windows OSL. Migrated the 16-bit code (used in the AcpiDump 1240114237Snjlutility) to scan memory for the DSDT to the AcpiOsTableOverride 1241114237Snjlfunction in the DOS OSL to make the disassembler truly OS 1242114237Snjlindependent. 1243102550Siwasaki 1244114237SnjlImplemented a new option to disassemble and compile in one step. 1245114237SnjlWhen used without an input filename, this option will grab the 1246114237SnjlDSDT from the local machine, disassemble it, and compile it in 1247114237Snjlone step. 1248102550Siwasaki 1249114237SnjlAdded a warning message for invalid escapes (a backslash followed 1250114237Snjlby any character other than the allowable escapes). This catches 1251114237Snjlthe quoted string error "\_SB_" (which should be "\\_SB_" ). 1252114237SnjlAlso, there are numerous instances in the ACPI specification 1253114237Snjlwhere this error occurs. 1254102550Siwasaki 1255104470SiwasakiAdded a compiler option to disable all optimizations. This is 1256114237Snjlbasically the "compatibility mode" because by using this option, 1257114237Snjlthe AML code will come out exactly the same as other ASL 1258114237Snjlcompilers. 1259102550Siwasaki 1260114237SnjlAdded error messages for incorrectly ordered dependent resource 1261114237Snjlfunctions. This includes: missing EndDependentFn macro at end of 1262114237Snjldependent resource list, nested dependent function macros (both 1263114237Snjlstart and end), and missing StartDependentFn macro. These are 1264114237Snjlcommon errors that should be caught at compile time. 1265102550Siwasaki 1266114237SnjlImplemented _OSI support for the disassembler and compiler. _OSI 1267114237Snjlmust be included in the namespace for proper disassembly (because 1268114237Snjlthe disassembler must know the number of arguments.) 1269102550Siwasaki 1270104470SiwasakiAdded an "optimization" message type that is optional (off by 1271114237Snjldefault). This message is used for all optimizations - including 1272114237Snjlconstant folding, integer optimization, and namepath 1273104470Siwasakioptimization. 1274102550Siwasaki 1275102550Siwasaki---------------------------------------- 1276102550Siwasaki25 July 2002. Summary of changes for this release. 1277102550Siwasaki 1278102550Siwasaki 1279102550Siwasaki1) ACPI CA Core Subsystem Version 20020725: 1280102550Siwasaki 1281114237SnjlThe AML Disassembler has been enhanced to produce compilable ASL 1282114237Snjlcode and has been integrated into the iASL compiler (see below) 1283114237Snjlas well as the single-step disassembly for the AML debugger and 1284114237Snjlthe disassembler for the AcpiDump utility. All ACPI 2.0A 1285114237Snjlopcodes, resource templates and macros are fully supported. The 1286114237Snjldisassembler has been tested on over 30 different AML files, 1287114237Snjlproducing identical AML when the resulting disassembled ASL file 1288114237Snjlis recompiled with the same ASL compiler. 1289102550Siwasaki 1290114237SnjlModified the Resource Manager to allow zero interrupts and zero 1291114237Snjldma channels during the GetCurrentResources call. This was 1292114237Snjlcausing problems on some platforms. 1293102550Siwasaki 1294114237SnjlAdded the AcpiOsRedirectOutput interface to the OSL to simplify 1295114237Snjloutput redirection for the AcpiOsPrintf and AcpiOsVprintf 1296114237Snjlinterfaces. 1297102550Siwasaki 1298102550SiwasakiCode and Data Size: Current core subsystem library sizes are 1299102550Siwasakishown below. These are the code and data sizes for the 1300114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 1301114237Snjlthese values do not include any ACPI driver or OSPM code. The 1302114237Snjldebug version of the code includes the debug output trace 1303114237Snjlmechanism and has a larger code and data size. Note that these 1304114237Snjlvalues will vary depending on the efficiency of the compiler and 1305114237Snjlthe compiler options used during generation. 1306102550Siwasaki 1307102550Siwasaki Previous Release 1308104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 1309104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 1310102550Siwasaki Current Release: 1311104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 1312104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 1313102550Siwasaki 1314102550Siwasaki 1315102550Siwasaki2) Linux 1316102550Siwasaki 1317102550SiwasakiFixed a panic in the EC driver (Dominik Brodowski) 1318102550Siwasaki 1319114237SnjlImplemented checksum of the R/XSDT itself during Linux table scan 1320114237Snjl(Richard Schaal) 1321102550Siwasaki 1322102550Siwasaki 1323102550Siwasaki3) iASL compiler 1324102550Siwasaki 1325114237SnjlThe AML disassembler is integrated into the compiler. The "-d" 1326114237Snjloption invokes the disassembler to completely disassemble an 1327114237Snjlinput AML file, producing as output a text ASL file with the 1328114237Snjlextension ".dsl" (to avoid name collisions with existing .asl 1329114237Snjlsource files.) A future enhancement will allow the disassembler 1330114237Snjlto obtain the BIOS DSDT from the registry under Windows. 1331102550Siwasaki 1332102550SiwasakiFixed a problem with the VendorShort and VendorLong resource 1333102550Siwasakidescriptors where an invalid AML sequence was created. 1334102550Siwasaki 1335114237SnjlImplemented a fix for BufferData term in the ASL parser. It was 1336114237Snjlinadvertently defined twice, allowing invalid syntax to pass and 1337114237Snjlcausing reduction conflicts. 1338102550Siwasaki 1339104470SiwasakiFixed a problem where the Ones opcode could get converted to a 1340104470Siwasakivalue of zero if "Ones" was used where a byte, word or dword 1341104470Siwasakivalue was expected. The 64-bit value is now truncated to the 1342104470Siwasakicorrect size with the correct value. 1343102550Siwasaki 1344102550Siwasaki 1345102550Siwasaki---------------------------------------- 1346102550Siwasaki02 July 2002. Summary of changes for this release. 1347102550Siwasaki 1348102550Siwasaki 1349102550Siwasaki1) ACPI CA Core Subsystem Version 20020702: 1350102550Siwasaki 1351114237SnjlThe Table Manager code has been restructured to add several new 1352114237Snjlfeatures. Tables that are not required by the core subsystem 1353114237Snjl(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer 1354114237Snjlvalidated in any way and are returned from AcpiGetFirmwareTable 1355114237Snjlif requested. The AcpiOsTableOverride interface is now called 1356114237Snjlfor each table that is loaded by the subsystem in order to allow 1357114237Snjlthe host to override any table it chooses. Previously, only the 1358114237SnjlDSDT could be overridden. Added one new files, tbrsdt.c and 1359114237Snjltbgetall.c. 1360102550Siwasaki 1361114237SnjlFixed a problem with the conversion of internal package objects 1362114237Snjlto external objects (when a package is returned from a control 1363114237Snjlmethod.) The return buffer length was set to zero instead of the 1364114237Snjlproper length of the package object. 1365102550Siwasaki 1366104470SiwasakiFixed a reported problem with the use of the RefOf and DeRefOf 1367114237Snjloperators when passing reference arguments to control methods. A 1368114237Snjlnew type of Reference object is used internally for references 1369114237Snjlproduced by the RefOf operator. 1370102550Siwasaki 1371102550SiwasakiAdded additional error messages in the Resource Manager to 1372102550Siwasakiexplain AE_BAD_DATA errors when they occur during resource 1373102550Siwasakiparsing. 1374102550Siwasaki 1375104470SiwasakiSplit the AcpiEnableSubsystem into two primitives to enable a 1376104470Siwasakifiner granularity initialization sequence. These two calls 1377104470Siwasakishould be called in this order: AcpiEnableSubsystem (flags), 1378114237SnjlAcpiInitializeObjects (flags). The flags parameter remains the 1379114237Snjlsame. 1380102550Siwasaki 1381102550Siwasaki 1382102550Siwasaki2) Linux 1383102550Siwasaki 1384114237SnjlUpdated the ACPI utilities module to understand the new style of 1385114237Snjlfully resolved package objects that are now returned from the 1386114237Snjlcore subsystem. This eliminates errors of the form: 1387102550Siwasaki 1388102550Siwasaki ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT] 1389102550Siwasaki acpi_utils-0430 [145] acpi_evaluate_reference: 1390102550Siwasaki Invalid element in package (not a device reference) 1391102550Siwasaki 1392102550SiwasakiThe method evaluation utility uses the new buffer allocation 1393102550Siwasakischeme instead of calling AcpiEvaluate Object twice. 1394102550Siwasaki 1395102550SiwasakiAdded support for ECDT. This allows the use of the Embedded 1396114237SnjlController before the namespace has been fully initialized, which 1397114237Snjlis necessary for ACPI 2.0 support, and for some laptops to 1398114237Snjlinitialize properly. (Laptops using ECDT are still rare, so only 1399114237Snjllimited testing was performed of the added functionality.) 1400102550Siwasaki 1401102550SiwasakiFixed memory leaks in the EC driver. 1402102550Siwasaki 1403102550SiwasakiEliminated a brittle code structure in acpi_bus_init(). 1404102550Siwasaki 1405114237SnjlEliminated the acpi_evaluate() helper function in utils.c. It is 1406114237Snjlno longer needed since acpi_evaluate_object can optionally 1407104470Siwasakiallocate memory for the return object. 1408102550Siwasaki 1409114237SnjlImplemented fix for keyboard hang when getting battery readings 1410114237Snjlon some systems (Stephen White) 1411102550Siwasaki 1412102550SiwasakiPCI IRQ routing update (Dominik Brodowski) 1413102550Siwasaki 1414114237SnjlFix an ifdef to allow compilation on UP with LAPIC but no IOAPIC 1415114237Snjlsupport 1416102550Siwasaki 1417102550Siwasaki---------------------------------------- 1418102550Siwasaki11 June 2002. Summary of changes for this release. 1419102550Siwasaki 1420102550Siwasaki 1421102550Siwasaki1) ACPI CA Core Subsystem Version 20020611: 1422102550Siwasaki 1423104470SiwasakiFixed a reported problem where constants such as Zero and One 1424114237Snjlappearing within _PRT packages were not handled correctly within 1425114237Snjlthe resource manager code. Originally reported against the ASL 1426114237Snjlcompiler because the code generator now optimizes integers to 1427114237Snjltheir minimal AML representation (i.e. AML constants if 1428114237Snjlpossible.) The _PRT code now handles all AML constant opcodes 1429114237Snjlcorrectly (Zero, One, Ones, Revision). 1430102550Siwasaki 1431102550SiwasakiFixed a problem with the Concatenate operator in the AML 1432114237Snjlinterpreter where a buffer result object was incorrectly marked 1433114237Snjlas not fully evaluated, causing a run-time error of 1434102550SiwasakiAE_AML_INTERNAL. 1435102550Siwasaki 1436104470SiwasakiAll package sub-objects are now fully resolved before they are 1437114237Snjlreturned from the external ACPI interfaces. This means that name 1438114237Snjlstrings are resolved to object handles, and constant operators 1439114237Snjl(Zero, One, Ones, Revision) are resolved to Integers. 1440102550Siwasaki 1441102550SiwasakiImplemented immediate resolution of the AML Constant opcodes 1442104470Siwasaki(Zero, One, Ones, Revision) to Integer objects upon detection 1443104470Siwasakiwithin the AML stream. This has simplified and reduced the 1444104470Siwasakigenerated code size of the subsystem by eliminating about 10 1445104470Siwasakiswitch statements for these constants (which previously were 1446104470Siwasakicontained in Reference objects.) The complicating issues are 1447114237Snjlthat the Zero opcode is used as a "placeholder" for unspecified 1448114237Snjloptional target operands and stores to constants are defined to 1449114237Snjlbe no-ops. 1450102550Siwasaki 1451102550SiwasakiCode and Data Size: Current core subsystem library sizes are 1452114237Snjlshown below. These are the code and data sizes for the acpica.lib 1453114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1454114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 1455114237Snjlversion of the code includes the debug output trace mechanism and 1456114237Snjlhas a larger code and data size. Note that these values will 1457114237Snjlvary depending on the efficiency of the compiler and the compiler 1458114237Snjloptions used during generation. 1459102550Siwasaki 1460102550Siwasaki Previous Release 1461104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 1462104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 1463102550Siwasaki Current Release: 1464104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 1465104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 1466102550Siwasaki 1467102550Siwasaki 1468102550Siwasaki2) Linux 1469102550Siwasaki 1470104470SiwasakiAdded preliminary support for obtaining _TRA data for PCI root 1471104470Siwasakibridges (Bjorn Helgaas). 1472102550Siwasaki 1473102550Siwasaki 1474102550Siwasaki3) iASL Compiler Version X2046: 1475102550Siwasaki 1476114237SnjlFixed a problem where the "_DDN" reserved name was defined to be 1477114237Snjla control method with one argument. There are no arguments, and 1478114237Snjl_DDN does not have to be a control method. 1479102550Siwasaki 1480114237SnjlFixed a problem with the Linux version of the compiler where the 1481114237Snjlsource lines printed with error messages were the wrong lines. 1482114237SnjlThis turned out to be the "LF versus CR/LF" difference between 1483114237SnjlWindows and Unix. This appears to be the longstanding issue 1484114237Snjlconcerning listing output and error messages. 1485102550Siwasaki 1486114237SnjlFixed a problem with the Linux version of compiler where opcode 1487114237Snjlnames within error messages were wrong. This was caused by a 1488114237Snjlslight difference in the output of the Flex tool on Linux versus 1489114237SnjlWindows. 1490102550Siwasaki 1491102550SiwasakiFixed a problem with the Linux compiler where the hex output 1492104470Siwasakifiles contained some garbage data caused by an internal buffer 1493104470Siwasakioverrun. 1494102550Siwasaki 1495102550Siwasaki 1496102550Siwasaki---------------------------------------- 1497102550Siwasaki17 May 2002. Summary of changes for this release. 1498102550Siwasaki 1499102550Siwasaki 1500102550Siwasaki1) ACPI CA Core Subsystem Version 20020517: 1501102550Siwasaki 1502102550SiwasakiImplemented a workaround to an BIOS bug discovered on the HP 1503104470SiwasakiOmniBook where the FADT revision number and the table size are 1504104470Siwasakiinconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The 1505114237Snjlnew behavior is to fallback to using only the ACPI 1.0 fields of 1506114237Snjlthe FADT if the table is too small to be a ACPI 2.0 table as 1507114237Snjlclaimed by the revision number. Although this is a BIOS bug, 1508114237Snjlthis is a case where the workaround is simple enough and with no 1509114237Snjlside effects, so it seemed prudent to add it. A warning message 1510114237Snjlis issued, however. 1511102550Siwasaki 1512114237SnjlImplemented minimum size checks for the fixed-length ACPI tables 1513114237Snjl-- the FADT and FACS, as well as consistency checks between the 1514114237Snjlrevision number and the table size. 1515102550Siwasaki 1516114237SnjlFixed a reported problem in the table override support where the 1517114237Snjlnew table pointer was incorrectly treated as a physical address 1518114237Snjlinstead of a logical address. 1519102550Siwasaki 1520114237SnjlEliminated the use of the AE_AML_ERROR exception and replaced it 1521114237Snjlwith more descriptive codes. 1522102550Siwasaki 1523104470SiwasakiFixed a problem where an exception would occur if an ASL Field 1524114237Snjlwas defined with no named Field Units underneath it (used by some 1525114237Snjlindex fields). 1526102550Siwasaki 1527102550SiwasakiCode and Data Size: Current core subsystem library sizes are 1528102550Siwasakishown below. These are the code and data sizes for the 1529114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 1530114237Snjlthese values do not include any ACPI driver or OSPM code. The 1531114237Snjldebug version of the code includes the debug output trace 1532114237Snjlmechanism and has a larger code and data size. Note that these 1533114237Snjlvalues will vary depending on the efficiency of the compiler and 1534114237Snjlthe compiler options used during generation. 1535102550Siwasaki 1536102550Siwasaki Previous Release 1537104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 1538104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 1539102550Siwasaki Current Release: 1540104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 1541104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 1542102550Siwasaki 1543102550Siwasaki 1544102550Siwasaki 1545102550Siwasaki2) Linux 1546102550Siwasaki 1547114237SnjlMuch work done on ACPI init (MADT and PCI IRQ routing support). 1548114237Snjl(Paul D. and Dominik Brodowski) 1549102550Siwasaki 1550102550SiwasakiFix PCI IRQ-related panic on boot (Sam Revitch) 1551102550Siwasaki 1552102550SiwasakiSet BM_ARB_DIS when entering a sleep state (Ducrot Bruno) 1553102550Siwasaki 1554102550SiwasakiFix "MHz" typo (Dominik Brodowski) 1555102550Siwasaki 1556102550SiwasakiFix RTC year 2000 issue (Dominik Brodowski) 1557102550Siwasaki 1558102550SiwasakiPreclude multiple button proc entries (Eric Brunet) 1559102550Siwasaki 1560102550SiwasakiMoved arch-specific code out of include/platform/aclinux.h 1561102550Siwasaki 1562102550Siwasaki3) iASL Compiler Version X2044: 1563102550Siwasaki 1564102550SiwasakiImplemented error checking for the string used in the EISAID 1565114237Snjlmacro (Usually used in the definition of the _HID object.) The 1566114237Snjlcode now strictly enforces the PnP format - exactly 7 characters, 1567114237Snjl3 uppercase letters and 4 hex digits. 1568102550Siwasaki 1569102550SiwasakiIf a raw string is used in the definition of the _HID object 1570102550Siwasaki(instead of the EISAID macro), the string must contain all 1571114237Snjlalphanumeric characters (e.g., "*PNP0011" is not allowed because 1572114237Snjlof the asterisk.) 1573102550Siwasaki 1574114237SnjlImplemented checking for invalid use of ACPI reserved names for 1575114237Snjlmost of the name creation operators (Name, Device, Event, Mutex, 1576114237SnjlOperationRegion, PowerResource, Processor, and ThermalZone.) 1577114237SnjlPreviously, this check was only performed for control methods. 1578102550Siwasaki 1579114237SnjlImplemented an additional check on the Name operator to emit an 1580114237Snjlerror if a reserved name that must be implemented in ASL as a 1581114237Snjlcontrol method is used. We know that a reserved name must be a 1582114237Snjlmethod if it is defined with input arguments. 1583102550Siwasaki 1584102550SiwasakiThe warning emitted when a namespace object reference is not 1585114237Snjlfound during the cross reference phase has been changed into an 1586114237Snjlerror. The "External" directive should be used for names defined 1587114237Snjlin other modules. 1588102550Siwasaki 1589102550Siwasaki 1590102550Siwasaki4) Tools and Utilities 1591102550Siwasaki 1592114237SnjlThe 16-bit tools (adump16 and aexec16) have been regenerated and 1593114237Snjltested. 1594102550Siwasaki 1595102550SiwasakiFixed a problem with the output of both acpidump and adump16 1596114237Snjlwhere the indentation of closing parentheses and brackets was not 1597114237Snjlaligned properly with the parent block. 1598102550Siwasaki 1599102550Siwasaki 1600102550Siwasaki---------------------------------------- 1601102550Siwasaki03 May 2002. Summary of changes for this release. 1602102550Siwasaki 1603102550Siwasaki 1604102550Siwasaki1) ACPI CA Core Subsystem Version 20020503: 1605102550Siwasaki 1606114237SnjlAdded support a new OSL interface that allows the host operating 1607114237Snjlsystem software to override the DSDT found in the firmware - 1608114237SnjlAcpiOsTableOverride. With this interface, the OSL can examine 1609114237Snjlthe version of the firmware DSDT and replace it with a different 1610114237Snjlone if desired. 1611102550Siwasaki 1612114237SnjlAdded new external interfaces for accessing ACPI registers from 1613114237Snjldevice drivers and other system software - AcpiGetRegister and 1614114237SnjlAcpiSetRegister. This was simply an externalization of the 1615114237Snjlexisting AcpiHwBitRegister interfaces. 1616102550Siwasaki 1617104470SiwasakiFixed a regression introduced in the previous build where the 1618104470SiwasakiASL/AML CreateField operator always returned an error, 1619102550Siwasaki"destination must be a NS Node". 1620102550Siwasaki 1621114237SnjlExtended the maximum time (before failure) to successfully enable 1622114237SnjlACPI mode to 3 seconds. 1623102550Siwasaki 1624102550SiwasakiCode and Data Size: Current core subsystem library sizes are 1625102550Siwasakishown below. These are the code and data sizes for the 1626114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 1627114237Snjlthese values do not include any ACPI driver or OSPM code. The 1628114237Snjldebug version of the code includes the debug output trace 1629114237Snjlmechanism and has a larger code and data size. Note that these 1630114237Snjlvalues will vary depending on the efficiency of the compiler and 1631114237Snjlthe compiler options used during generation. 1632102550Siwasaki 1633102550Siwasaki Previous Release 1634104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 1635104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 1636102550Siwasaki Current Release: 1637104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 1638104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 1639102550Siwasaki 1640102550Siwasaki 1641102550Siwasaki2) Linux 1642102550Siwasaki 1643104470SiwasakiEnhanced ACPI init code for SMP. We are now fully MPS and $PIR- 1644104470Siwasakifree. While 3 out of 4 of our in-house systems work fine, the 1645104470Siwasakilast one still hangs when testing the LAPIC timer. 1646102550Siwasaki 1647114237SnjlRenamed many files in 2.5 kernel release to omit "acpi_" from the 1648114237Snjlname. 1649102550Siwasaki 1650102550SiwasakiAdded warning on boot for Presario 711FR. 1651102550Siwasaki 1652102550SiwasakiSleep improvements (Pavel Machek) 1653102550Siwasaki 1654102550SiwasakiACPI can now be built without CONFIG_PCI enabled. 1655102550Siwasaki 1656102550SiwasakiIA64: Fixed memory map functions (JI Lee) 1657102550Siwasaki 1658102550Siwasaki 1659102550Siwasaki3) iASL Compiler Version X2043: 1660102550Siwasaki 1661114237SnjlAdded support to allow the compiler to be integrated into the MS 1662114237SnjlVC++ development environment for one-button compilation of single 1663114237Snjlfiles or entire projects -- with error-to-source-line mapping. 1664102550Siwasaki 1665104470SiwasakiImplemented support for compile-time constant folding for the 1666104470SiwasakiType3, Type4, and Type5 opcodes first defined in the ACPI 2.0 1667104470Siwasakispecification. This allows the ASL writer to use expressions 1668104470Siwasakiinstead of Integer/Buffer/String constants in terms that must 1669114237Snjlevaluate to constants at compile time and will also simplify the 1670114237Snjlemitted AML in any such sub-expressions that can be folded 1671104470Siwasaki(evaluated at compile-time.) This increases the size of the 1672104470Siwasakicompiler significantly because a portion of the ACPI CA AML 1673104470Siwasakiinterpreter is included within the compiler in order to pre- 1674104470Siwasakievaluate constant expressions. 1675102550Siwasaki 1676114237Snjl 1677102550SiwasakiFixed a problem with the "Unicode" ASL macro that caused the 1678114237Snjlcompiler to fault. (This macro is used in conjunction with the 1679114237Snjl_STR reserved name.) 1680102550Siwasaki 1681114237SnjlImplemented an AML opcode optimization to use the Zero, One, and 1682114237SnjlOnes opcodes where possible to further reduce the size of integer 1683114237Snjlconstants and thus reduce the overall size of the generated AML 1684114237Snjlcode. 1685102550Siwasaki 1686102550SiwasakiImplemented error checking for new reserved terms for ACPI 1687102550Siwasakiversion 2.0A. 1688102550Siwasaki 1689104470SiwasakiImplemented the -qr option to display the current list of ACPI 1690104470Siwasakireserved names known to the compiler. 1691102550Siwasaki 1692104470SiwasakiImplemented the -qc option to display the current list of ASL 1693104470Siwasakioperators that are allowed within constant expressions and can 1694104470Siwasakitherefore be folded at compile time if the operands are 1695104470Siwasakiconstants. 1696102550Siwasaki 1697102550Siwasaki 1698102550Siwasaki4) Documentation 1699102550Siwasaki 1700102550SiwasakiUpdated the Programmer's Reference for new interfaces, data 1701102550Siwasakitypes, and memory allocation model options. 1702102550Siwasaki 1703114237SnjlUpdated the iASL Compiler User Reference to apply new format and 1704114237Snjladd information about new features and options. 1705102550Siwasaki 1706102550Siwasaki---------------------------------------- 1707102550Siwasaki19 April 2002. Summary of changes for this release. 1708102550Siwasaki 1709102550Siwasaki1) ACPI CA Core Subsystem Version 20020419: 1710102550Siwasaki 1711114237SnjlThe source code base for the Core Subsystem has been completely 1712114237Snjlcleaned with PC-lint (FlexLint) for both 32-bit and 64-bit 1713114237Snjlversions. The Lint option files used are included in the 1714114237Snjl/acpi/generate/lint directory. 1715102550Siwasaki 1716102550SiwasakiImplemented enhanced status/error checking across the entire 1717114237SnjlHardware manager subsystem. Any hardware errors (reported from 1718114237Snjlthe OSL) are now bubbled up and will abort a running control 1719114237Snjlmethod. 1720102550Siwasaki 1721114237SnjlFixed a problem where the per-ACPI-table integer width (32 or 64) 1722114237Snjlwas stored only with control method nodes, causing a fault when 1723114237Snjlnon-control method code was executed during table loading. The 1724114237Snjlsolution implemented uses a global variable to indicate table 1725114237Snjlwidth across the entire ACPI subsystem. Therefore, ACPI CA does 1726114237Snjlnot support mixed integer widths across different ACPI tables 1727114237Snjl(DSDT, SSDT). 1728102550Siwasaki 1729114237SnjlFixed a problem where NULL extended fields (X fields) in an ACPI 1730114237Snjl2.0 ACPI FADT caused the table load to fail. Although the 1731114237Snjlexisting ACPI specification is a bit fuzzy on this topic, the new 1732114237Snjlbehavior is to fall back on a ACPI 1.0 field if the corresponding 1733114237SnjlACPI 2.0 X field is zero (even though the table revision 1734114237Snjlindicates a full ACPI 2.0 table.) The ACPI specification will be 1735114237Snjlupdated to clarify this issue. 1736102550Siwasaki 1737104470SiwasakiFixed a problem with the SystemMemory operation region handler 1738104470Siwasakiwhere memory was always accessed byte-wise even if the AML- 1739104470Siwasakispecified access width was larger than a byte. This caused 1740104470Siwasakiproblems on systems with memory-mapped I/O. Memory is now 1741104470Siwasakiaccessed with the width specified. On systems that do not 1742104470Siwasakisupport non-aligned transfers, a check is made to guarantee 1743114237Snjlproper address alignment before proceeding in order to avoid an 1744114237SnjlAML-caused alignment fault within the kernel. 1745102550Siwasaki 1746102550Siwasaki 1747114237SnjlFixed a problem with the ExtendedIrq resource where only one byte 1748114237Snjlof the 4-byte Irq field was extracted. 1749102550Siwasaki 1750114237SnjlFixed the AcpiExDigitsNeeded() procedure to support _UID. This 1751114237Snjlfunction was out of date and required a rewrite. 1752114237Snjl 1753102550SiwasakiCode and Data Size: Current core subsystem library sizes are 1754102550Siwasakishown below. These are the code and data sizes for the 1755114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 1756114237Snjlthese values do not include any ACPI driver or OSPM code. The 1757114237Snjldebug version of the code includes the debug output trace 1758114237Snjlmechanism and has a larger code and data size. Note that these 1759114237Snjlvalues will vary depending on the efficiency of the compiler and 1760114237Snjlthe compiler options used during generation. 1761102550Siwasaki 1762102550Siwasaki Previous Release 1763104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 1764104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 1765102550Siwasaki Current Release: 1766104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 1767104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 1768102550Siwasaki 1769102550Siwasaki 1770102550Siwasaki2) Linux 1771102550Siwasaki 1772102550SiwasakiPCI IRQ routing fixes (Dominik Brodowski) 1773102550Siwasaki 1774102550Siwasaki 1775102550Siwasaki3) iASL Compiler Version X2042: 1776102550Siwasaki 1777104470SiwasakiImplemented an additional compile-time error check for a field 1778104470Siwasakiunit whose size + minimum access width would cause a run-time 1779114237Snjlaccess beyond the end-of-region. Previously, only the field size 1780114237Snjlitself was checked. 1781102550Siwasaki 1782104470SiwasakiThe Core subsystem and iASL compiler now share a common parse 1783104470Siwasakiobject in preparation for compile-time evaluation of the type 1784104470Siwasaki3/4/5 ASL operators. 1785102550Siwasaki 1786102550Siwasaki 1787102550Siwasaki---------------------------------------- 1788102550SiwasakiSummary of changes for this release: 03_29_02 1789102550Siwasaki 1790102550Siwasaki1) ACPI CA Core Subsystem Version 20020329: 1791102550Siwasaki 1792104470SiwasakiImplemented support for late evaluation of TermArg operands to 1793114237SnjlBuffer and Package objects. This allows complex expressions to 1794114237Snjlbe used in the declarations of these object types. 1795102550Siwasaki 1796104470SiwasakiFixed an ACPI 1.0 compatibility issue when reading Fields. In 1797114237SnjlACPI 1.0, if the field was larger than 32 bits, it was returned 1798114237Snjlas a buffer - otherwise it was returned as an integer. In ACPI 1799114237Snjl2.0, the field is returned as a buffer only if the field is 1800114237Snjllarger than 64 bits. The TableRevision is now considered when 1801114237Snjlmaking this conversion to avoid incompatibility with existing ASL 1802114237Snjlcode. 1803102550Siwasaki 1804104470SiwasakiImplemented logical addressing for AcpiOsGetRootPointer. This 1805114237Snjlallows an RSDP with either a logical or physical address. With 1806114237Snjlthis support, the host OS can now override all ACPI tables with 1807114237Snjlone logical RSDP. Includes implementation of "typed" pointer 1808114237Snjlsupport to allow a common data type for both physical and logical 1809114237Snjlpointers internally. This required a change to the 1810114237SnjlAcpiOsGetRootPointer interface. 1811102550Siwasaki 1812104470SiwasakiImplemented the use of ACPI 2.0 Generic Address Structures for 1813114237Snjlall GPE, Fixed Event, and PM Timer I/O. This allows the use of 1814114237Snjlmemory mapped I/O for these ACPI features. 1815102550Siwasaki 1816102550SiwasakiInitialization now ignores not only non-required tables (All 1817114237Snjltables other than the FADT, FACS, DSDT, and SSDTs), but also does 1818114237Snjlnot validate the table headers of unrecognized tables. 1819102550Siwasaki 1820102550SiwasakiFixed a problem where a notify handler could only be 1821102550Siwasakiinstalled/removed on an object of type Device. All "notify" 1822102550Siwasakiobjects are now supported -- Devices, Processor, Power, and 1823102550SiwasakiThermal. 1824102550Siwasaki 1825114237SnjlRemoved most verbosity from the ACPI_DB_INFO debug level. Only 1826114237Snjlcritical information is returned when this debug level is 1827104470Siwasakienabled. 1828102550Siwasaki 1829102550SiwasakiCode and Data Size: Current core subsystem library sizes are 1830102550Siwasakishown below. These are the code and data sizes for the 1831114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 1832114237Snjlthese values do not include any ACPI driver or OSPM code. The 1833114237Snjldebug version of the code includes the debug output trace 1834114237Snjlmechanism and has a larger code and data size. Note that these 1835114237Snjlvalues will vary depending on the efficiency of the compiler and 1836114237Snjlthe compiler options used during generation. 1837102550Siwasaki 1838102550Siwasaki Previous Release 1839104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 1840104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 1841102550Siwasaki Current Release: 1842104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 1843104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 1844102550Siwasaki 1845102550Siwasaki 1846102550Siwasaki2) Linux: 1847102550Siwasaki 1848114237SnjlThe processor driver (acpi_processor.c) now fully supports ACPI 1849114237Snjl2.0-based processor performance control (e.g. Intel(R) 1850114237SnjlSpeedStep(TM) technology) Note that older laptops that only have 1851114237Snjlthe Intel "applet" interface are not supported through this. The 1852114237Snjl'limit' and 'performance' interface (/proc) are fully functional. 1853114237Snjl[Note that basic policy for controlling performance state 1854114237Snjltransitions will be included in the next version of ospmd.] The 1855114237Snjlidle handler was modified to more aggressively use C2, and PIIX4 1856114237Snjlerrata handling underwent a complete overhaul (big thanks to 1857114237SnjlDominik Brodowski). 1858102550Siwasaki 1859114237SnjlAdded support for ACPI-PCI device binding (acpi_pci_root.c). _ADR- 1860114237Snjlbased devices in the ACPI namespace are now dynamically bound 1861114237Snjl(associated) with their PCI counterparts (e.g. PCI1->01:00.0). 1862114237SnjlThis allows, among other things, ACPI to resolve bus numbers for 1863114237Snjlsubordinate PCI bridges. 1864102550Siwasaki 1865104470SiwasakiEnhanced PCI IRQ routing to get the proper bus number for _PRT 1866104470Siwasakientries defined underneath PCI bridges. 1867102550Siwasaki 1868104470SiwasakiAdded IBM 600E to bad bios list due to invalid _ADR value for 1869104470SiwasakiPIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing. 1870102550Siwasaki 1871114237SnjlIn the process of adding full MADT support (e.g. IOAPIC) for IA32 1872114237Snjl(acpi.c, mpparse.c) -- stay tuned. 1873102550Siwasaki 1874102550SiwasakiAdded back visual differentiation between fixed-feature and 1875114237Snjlcontrol-method buttons in dmesg. Buttons are also subtyped (e.g. 1876114237Snjlbutton/power/PWRF) to simplify button identification. 1877102550Siwasaki 1878114237SnjlWe no longer use -Wno-unused when compiling debug. Please ignore 1879114237Snjlany "_THIS_MODULE defined but not used" messages. 1880102550Siwasaki 1881102550SiwasakiCan now shut down the system using "magic sysrq" key. 1882102550Siwasaki 1883102550Siwasaki 1884102550Siwasaki3) iASL Compiler version 2041: 1885102550Siwasaki 1886104470SiwasakiFixed a problem where conversion errors for hex/octal/decimal 1887104470Siwasakiconstants were not reported. 1888102550Siwasaki 1889102550SiwasakiImplemented a fix for the General Register template Address 1890102550Siwasakifield. This field was 8 bits when it should be 64. 1891102550Siwasaki 1892102550SiwasakiFixed a problem where errors/warnings were no longer being 1893102550Siwasakiemitted within the listing output file. 1894102550Siwasaki 1895114237SnjlImplemented the ACPI 2.0A restriction on ACPI Table Signatures to 1896114237Snjlexactly 4 characters, alphanumeric only. 1897102550Siwasaki 1898102550Siwasaki 1899102550Siwasaki 1900102550Siwasaki 1901102550Siwasaki---------------------------------------- 1902102550SiwasakiSummary of changes for this release: 03_08_02 1903102550Siwasaki 1904102550Siwasaki 1905102550Siwasaki1) ACPI CA Core Subsystem Version 20020308: 1906102550Siwasaki 1907114237SnjlFixed a problem with AML Fields where the use of the "AccessAny" 1908114237Snjlkeyword could cause an interpreter error due to attempting to 1909114237Snjlread or write beyond the end of the parent Operation Region. 1910102550Siwasaki 1911102550SiwasakiFixed a problem in the SystemMemory Operation Region handler 1912104470Siwasakiwhere an attempt was made to map memory beyond the end of the 1913104470Siwasakiregion. This was the root cause of the "AE_ERROR" and 1914102550Siwasaki"AE_NO_MEMORY" errors on some Linux systems. 1915102550Siwasaki 1916114237SnjlFixed a problem where the interpreter/namespace "search to root" 1917114237Snjlalgorithm was not functioning for some object types. Relaxed the 1918114237Snjlinternal restriction on the search to allow upsearches for all 1919114237Snjlexternal object types as well as most internal types. 1920102550Siwasaki 1921102550Siwasaki 1922102550Siwasaki2) Linux: 1923102550Siwasaki 1924104470SiwasakiWe now use safe_halt() macro versus individual calls to sti | 1925104470Siwasakihlt. 1926102550Siwasaki 1927114237SnjlWriting to the processor limit interface should now work. "echo 1928114237Snjl1" will increase the limit, 2 will decrease, and 0 will reset to 1929114237Snjlthe default. 1930102550Siwasaki 1931102550Siwasaki 1932102550Siwasaki3) ASL compiler: 1933102550Siwasaki 1934102550SiwasakiFixed segfault on Linux version. 1935102550Siwasaki 1936102550Siwasaki 1937102550Siwasaki---------------------------------------- 1938102550SiwasakiSummary of changes for this release: 02_25_02 1939102550Siwasaki 1940102550Siwasaki1) ACPI CA Core Subsystem: 1941102550Siwasaki 1942102550Siwasaki 1943102550SiwasakiFixed a problem where the GPE bit masks were not initialized 1944102550Siwasakiproperly, causing erratic GPE behavior. 1945102550Siwasaki 1946104470SiwasakiImplemented limited support for multiple calling conventions. 1947114237SnjlThe code can be generated with either the VPL (variable parameter 1948114237Snjllist, or "C") convention, or the FPL (fixed parameter list, or 1949114237Snjl"Pascal") convention. The core subsystem is about 3.4% smaller 1950114237Snjlwhen generated with FPL. 1951102550Siwasaki 1952102550Siwasaki 1953102550Siwasaki2) Linux 1954102550Siwasaki 1955114237SnjlRe-add some /proc/acpi/event functionality that was lost during 1956114237Snjlthe rewrite 1957102550Siwasaki 1958102550SiwasakiResolved issue with /proc events for fixed-feature buttons 1959102550Siwasakishowing up as the system device. 1960102550Siwasaki 1961102550SiwasakiFixed checks on C2/C3 latencies to be inclusive of maximum 1962102550Siwasakivalues. 1963102550Siwasaki 1964114237SnjlReplaced AE_ERRORs in acpi_osl.c with more specific error codes. 1965102550Siwasaki 1966114237SnjlChanged ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi" 1967102550Siwasaki 1968104470SiwasakiFixed limit interface & usage to fix bugs with passive cooling 1969104470Siwasakihysterisis. 1970102550Siwasaki 1971102550SiwasakiRestructured PRT support. 1972102550Siwasaki 1973102550Siwasaki 1974102550Siwasaki---------------------------------------- 1975102550SiwasakiSummary of changes for this label: 02_14_02 1976102550Siwasaki 1977102550Siwasaki 1978102550Siwasaki1) ACPI CA Core Subsystem: 1979102550Siwasaki 1980114237SnjlImplemented support in AcpiLoadTable to allow loading of FACS and 1981114237SnjlFADT tables. 1982102550Siwasaki 1983114237SnjlSuport for the now-obsolete interim 0.71 64-bit ACPI tables has 1984114237Snjlbeen removed. All 64-bit platforms should be migrated to the 1985114237SnjlACPI 2.0 tables. The actbl71.h header has been removed from the 1986114237Snjlsource tree. 1987102550Siwasaki 1988114237SnjlAll C macros defined within the subsystem have been prefixed with 1989114237Snjl"ACPI_" to avoid collision with other system include files. 1990102550Siwasaki 1991102550SiwasakiRemoved the return value for the two AcpiOsPrint interfaces, 1992114237Snjlsince it is never used and causes lint warnings for ignoring the 1993114237Snjlreturn value. 1994102550Siwasaki 1995104470SiwasakiAdded error checking to all internal mutex acquire and release 1996104470Siwasakicalls. Although a failure from one of these interfaces is 1997104470Siwasakiprobably a fatal system error, these checks will cause the 1998114237Snjlimmediate abort of the currently executing method or interface. 1999102550Siwasaki 2000114237SnjlFixed a problem where the AcpiSetCurrentResources interface could 2001114237Snjlfault. This was a side effect of the deployment of the new 2002114237Snjlmemory allocation model. 2003102550Siwasaki 2004102550SiwasakiFixed a couple of problems with the Global Lock support 2005102550Siwasakiintroduced in the last major build. The "common" (1.0/2.0) 2006114237Snjlinternal FACS was being overwritten with the FACS signature and 2007114237Snjlclobbering the Global Lock pointer. Also, the actual firmware 2008114237SnjlFACS was being unmapped after construction of the "common" FACS, 2009114237Snjlpreventing access to the actual Global Lock field within it. The 2010114237Snjl"common" internal FACS is no longer installed as an actual ACPI 2011114237Snjltable; it is used simply as a global. 2012102550Siwasaki 2013102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2014102550Siwasakishown below. These are the code and data sizes for the 2015114237Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 2016114237Snjlthese values do not include any ACPI driver or OSPM code. The 2017114237Snjldebug version of the code includes the debug output trace 2018114237Snjlmechanism and has a larger code and data size. Note that these 2019114237Snjlvalues will vary depending on the efficiency of the compiler and 2020114237Snjlthe compiler options used during generation. 2021102550Siwasaki 2022102550Siwasaki Previous Release (02_07_01) 2023104470Siwasaki Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 2024104470Siwasaki Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 2025102550Siwasaki Current Release: 2026104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 2027104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 2028102550Siwasaki 2029102550Siwasaki 2030102550Siwasaki2) Linux 2031102550Siwasaki 2032102550SiwasakiUpdated Linux-specific code for core macro and OSL interface 2033102550Siwasakichanges described above. 2034102550Siwasaki 2035114237SnjlImproved /proc/acpi/event. It now can be opened only once and has 2036114237Snjlproper poll functionality. 2037102550Siwasaki 2038102550SiwasakiFixed and restructured power management (acpi_bus). 2039102550Siwasaki 2040102550SiwasakiOnly create /proc "view by type" when devices of that class 2041102550Siwasakiexist. 2042102550Siwasaki 2043104470SiwasakiFixed "charging/discharging" bug (and others) in acpi_battery. 2044102550Siwasaki 2045102550SiwasakiImproved thermal zone code. 2046102550Siwasaki 2047102550Siwasaki 2048102550Siwasaki3) ASL Compiler, version X2039: 2049102550Siwasaki 2050114237Snjl 2051114237SnjlImplemented the new compiler restriction on ASL String hex/octal 2052114237Snjlescapes to non-null, ASCII values. An error results if an 2053114237Snjlinvalid value is used. (This will require an ACPI 2.0 2054104470Siwasakispecification change.) 2055102550Siwasaki 2056102550SiwasakiAML object labels that are output to the optional C and ASM 2057104470Siwasakisource are now prefixed with both the ACPI table signature and 2058104470Siwasakitable ID to help guarantee uniqueness within a large BIOS 2059104470Siwasakiproject. 2060102550Siwasaki 2061102550Siwasaki 2062102550Siwasaki---------------------------------------- 2063102550SiwasakiSummary of changes for this label: 02_01_02 2064102550Siwasaki 2065102550Siwasaki1) ACPI CA Core Subsystem: 2066102550Siwasaki 2067114237SnjlACPI 2.0 support is complete in the entire Core Subsystem and the 2068114237SnjlASL compiler. All new ACPI 2.0 operators are implemented and all 2069114237Snjlother changes for ACPI 2.0 support are complete. With 2070104470Siwasakisimultaneous code and data optimizations throughout the 2071114237Snjlsubsystem, ACPI 2.0 support has been implemented with almost no 2072114237Snjladditional cost in terms of code and data size. 2073102550Siwasaki 2074114237SnjlImplemented a new mechanism for allocation of return buffers. If 2075114237Snjlthe buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will 2076114237Snjlbe allocated on behalf of the caller. Consolidated all return 2077114237Snjlbuffer validation and allocation to a common procedure. Return 2078114237Snjlbuffers will be allocated via the primary OSL allocation 2079114237Snjlinterface since it appears that a separate pool is not needed by 2080114237Snjlmost users. If a separate pool is required for these buffers, 2081114237Snjlthe caller can still use the original mechanism and pre-allocate 2082114237Snjlthe buffer(s). 2083102550Siwasaki 2084102550SiwasakiImplemented support for string operands within the DerefOf 2085102550Siwasakioperator. 2086102550Siwasaki 2087114237SnjlRestructured the Hardware and Event managers to be table driven, 2088114237Snjlsimplifying the source code and reducing the amount of generated 2089114237Snjlcode. 2090102550Siwasaki 2091102550SiwasakiSplit the common read/write low-level ACPI register bitfield 2092104470Siwasakiprocedure into a separate read and write, simplifying the code 2093104470Siwasakiconsiderably. 2094102550Siwasaki 2095114237SnjlObsoleted the AcpiOsCallocate OSL interface. This interface was 2096114237Snjlused only a handful of times and didn't have enough critical mass 2097114237Snjlfor a separate interface. Replaced with a common calloc 2098114237Snjlprocedure in the core. 2099102550Siwasaki 2100104470SiwasakiFixed a reported problem with the GPE number mapping mechanism 2101104470Siwasakithat allows GPE1 numbers to be non-contiguous with GPE0. 2102114237SnjlReorganized the GPE information and shrunk a large array that was 2103114237Snjloriginally large enough to hold info for all possible GPEs (256) 2104114237Snjlto simply large enough to hold all GPEs up to the largest GPE 2105114237Snjlnumber on the machine. 2106102550Siwasaki 2107114237SnjlFixed a reported problem with resource structure alignment on 64- 2108114237Snjlbit platforms. 2109102550Siwasaki 2110102550SiwasakiChanged the AcpiEnableEvent and AcpiDisableEvent external 2111102550Siwasakiinterfaces to not require any flags for the common case of 2112102550Siwasakienabling/disabling a GPE. 2113102550Siwasaki 2114104470SiwasakiImplemented support to allow a "Notify" on a Processor object. 2115102550Siwasaki 2116114237SnjlMost TBDs in comments within the source code have been resolved 2117114237Snjland eliminated. 2118102550Siwasaki 2119102550SiwasakiFixed a problem in the interpreter where a standalone parent 2120102550Siwasakiprefix (^) was not handled correctly in the interpreter and 2121102550Siwasakidebugger. 2122102550Siwasaki 2123102550SiwasakiRemoved obsolete and unnecessary GPE save/restore code. 2124102550Siwasaki 2125114237SnjlImplemented Field support in the ASL Load operator. This allows 2126114237Snjla table to be loaded from a named field, in addition to loading a 2127114237Snjltable directly from an Operation Region. 2128102550Siwasaki 2129104470SiwasakiImplemented timeout and handle support in the external Global 2130104470SiwasakiLock interfaces. 2131102550Siwasaki 2132114237SnjlFixed a problem in the AcpiDump utility where pathnames were no 2133114237Snjllonger being generated correctly during the dump of named 2134102550Siwasakiobjects. 2135102550Siwasaki 2136102550SiwasakiModified the AML debugger to give a full display of if/while 2137102550Siwasakipredicates instead of just one AML opcode at a time. (The 2138102550Siwasakipredicate can have several nested ASL statements.) The old 2139102550Siwasakimethod was confusing during single stepping. 2140102550Siwasaki 2141102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2142114237Snjlshown below. These are the code and data sizes for the acpica.lib 2143114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2144114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 2145114237Snjlversion of the code includes the debug output trace mechanism and 2146114237Snjlhas a larger code and data size. Note that these values will 2147114237Snjlvary depending on the efficiency of the compiler and the compiler 2148114237Snjloptions used during generation. 2149102550Siwasaki 2150102550Siwasaki Previous Release (12_18_01) 2151114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 2152114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 2153102550Siwasaki Current Release: 2154114237Snjl Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 2155114237Snjl Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 2156102550Siwasaki 2157102550Siwasaki2) Linux 2158102550Siwasaki 2159104470Siwasaki Implemented fix for PIIX reverse throttling errata (Processor 2160104470Siwasakidriver) 2161102550Siwasaki 2162102550SiwasakiAdded new Limit interface (Processor and Thermal drivers) 2163102550Siwasaki 2164102550SiwasakiNew thermal policy (Thermal driver) 2165102550Siwasaki 2166102550SiwasakiMany updates to /proc 2167102550Siwasaki 2168102550SiwasakiBattery "low" event support (Battery driver) 2169102550Siwasaki 2170104470SiwasakiSupports ACPI PCI IRQ routing (PCI Link and PCI root drivers) 2171102550Siwasaki 2172104470SiwasakiIA32 - IA64 initialization unification, no longer experimental 2173102550Siwasaki 2174102550SiwasakiMenuconfig options redesigned 2175102550Siwasaki 2176102550Siwasaki3) ASL Compiler, version X2037: 2177102550Siwasaki 2178114237SnjlImplemented several new output features to simplify integration 2179114237Snjlof AML code into firmware: 1) Output the AML in C source code 2180114237Snjlwith labels for each named ASL object. The original ASL 2181114237Snjlsource code is interleaved as C comments. 2) Output the AML in 2182114237SnjlASM source code with labels and interleaved ASL source. 3) 2183114237SnjlOutput the AML in raw hex table form, in either C or ASM. 2184102550Siwasaki 2185102550SiwasakiImplemented support for optional string parameters to the 2186102550SiwasakiLoadTable operator. 2187102550Siwasaki 2188104470SiwasakiCompleted support for embedded escape sequences within string 2189114237Snjlliterals. The compiler now supports all single character escapes 2190114237Snjlas well as the Octal and Hex escapes. Note: the insertion of a 2191114237Snjlnull byte into a string literal (via the hex/octal escape) causes 2192114237Snjlthe string to be immediately terminated. A warning is issued. 2193102550Siwasaki 2194104470SiwasakiFixed a problem where incorrect AML was generated for the case 2195104470Siwasakiwhere an ASL namepath consists of a single parent prefix ( 2196102550Siwasaki 2197102550Siwasaki) with no trailing name segments. 2198102550Siwasaki 2199102550SiwasakiThe compiler has been successfully generated with a 64-bit C 2200102550Siwasakicompiler. 2201102550Siwasaki 2202102550Siwasaki 2203102550Siwasaki 2204102550Siwasaki 2205102550Siwasaki---------------------------------------- 2206102550SiwasakiSummary of changes for this label: 12_18_01 2207102550Siwasaki 2208102550Siwasaki1) Linux 2209102550Siwasaki 2210114237SnjlEnhanced blacklist with reason and severity fields. Any table's 2211114237Snjlsignature may now be used to identify a blacklisted system. 2212102550Siwasaki 2213114237SnjlCall _PIC control method to inform the firmware which interrupt 2214114237Snjlmodel the OS is using. Turn on any disabled link devices. 2215102550Siwasaki 2216102550SiwasakiCleaned up busmgr /proc error handling (Andreas Dilger) 2217102550Siwasaki 2218102550Siwasaki 2) ACPI CA Core Subsystem: 2219102550Siwasaki 2220104470SiwasakiImplemented ACPI 2.0 semantics for the "Break" operator (Exit 2221104470Siwasakifrom while loop) 2222102550Siwasaki 2223102550SiwasakiCompleted implementation of the ACPI 2.0 "Continue", 2224102550Siwasaki"ConcatenateResTemplate", "DataTableRegion", and "LoadTable" 2225104470Siwasakioperators. All new ACPI 2.0 operators are now implemented in 2226104470Siwasakiboth the ASL compiler and the AML interpreter. The only 2227104470Siwasakiremaining ACPI 2.0 task is support for the String data type in 2228104470Siwasakithe DerefOf operator. Fixed a problem with AcquireMutex where 2229114237Snjlthe status code was lost if the caller had to actually wait for 2230114237Snjlthe mutex. 2231102550Siwasaki 2232104470SiwasakiIncreased the maximum ASL Field size from 64K bits to 4G bits. 2233102550Siwasaki 2234114237SnjlCompleted implementation of the external Global Lock interfaces - 2235114237Snjl- AcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout 2236114237Snjland Handler parameters were added. 2237102550Siwasaki 2238102550SiwasakiCompleted another pass at removing warnings and issues when 2239114237Snjlcompiling with 64-bit compilers. The code now compiles cleanly 2240114237Snjlwith the Intel 64-bit C/C++ compiler. Most notably, the pointer 2241114237Snjladd and subtract (diff) macros have changed considerably. 2242102550Siwasaki 2243114237SnjlCreated and deployed a new ACPI_SIZE type that is 64-bits wide on 2244114237Snjl64-bit platforms, 32-bits on all others. This type is used 2245104470Siwasakiwherever memory allocation and/or the C sizeof() operator is 2246104470Siwasakiused, and affects the OSL memory allocation interfaces 2247104470SiwasakiAcpiOsAllocate and AcpiOsCallocate. 2248102550Siwasaki 2249102550SiwasakiImplemented sticky user breakpoints in the AML debugger. 2250102550Siwasaki 2251102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2252114237Snjlshown below. These are the code and data sizes for the acpica.lib 2253114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2254114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 2255114237Snjlversion of the code includes the debug output trace mechanism and 2256114237Snjlhas a larger code and data size. Note that these values will vary 2257114237Snjldepending on the efficiency of the compiler and the compiler 2258114237Snjloptions used during generation. 2259102550Siwasaki 2260102550Siwasaki Previous Release (12_05_01) 2261114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 2262114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 2263102550Siwasaki Current Release: 2264114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 2265114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 2266102550Siwasaki 2267102550Siwasaki 3) ASL Compiler, version X2034: 2268102550Siwasaki 2269114237SnjlNow checks for (and generates an error if detected) the use of a 2270114237SnjlBreak or Continue statement without an enclosing While statement. 2271102550Siwasaki 2272102550SiwasakiSuccessfully generated the compiler with the Intel 64-bit C 2273102550Siwasakicompiler. 2274102550Siwasaki 2275102550Siwasaki ---------------------------------------- 2276102550SiwasakiSummary of changes for this label: 12_05_01 2277102550Siwasaki 2278102550Siwasaki 1) ACPI CA Core Subsystem: 2279102550Siwasaki 2280102550SiwasakiThe ACPI 2.0 CopyObject operator is fully implemented. This 2281104470Siwasakioperator creates a new copy of an object (and is also used to 2282104470Siwasakibypass the "implicit conversion" mechanism of the Store 2283102550Siwasakioperator.) 2284102550Siwasaki 2285102550SiwasakiThe ACPI 2.0 semantics for the SizeOf operator are fully 2286102550Siwasakiimplemented. The change is that performing a SizeOf on a 2287114237Snjlreference object causes an automatic dereference of the object to 2288114237Snjltha actual value before the size is evaluated. This behavior was 2289114237Snjlundefined in ACPI 1.0. 2290102550Siwasaki 2291114237SnjlThe ACPI 2.0 semantics for the Extended IRQ resource descriptor 2292114237Snjlhave been implemented. The interrupt polarity and mode are now 2293114237Snjlindependently set. 2294102550Siwasaki 2295114237SnjlFixed a problem where ASL Constants (Zero, One, Ones, Revision) 2296114237Snjlappearing in Package objects were not properly converted to 2297114237Snjlintegers when the internal Package was converted to an external 2298114237Snjlobject (via the AcpiEvaluateObject interface.) 2299102550Siwasaki 2300114237SnjlFixed a problem with the namespace object deletion mechanism for 2301114237Snjlobjects created by control methods. There were two parts to this 2302114237Snjlproblem: 1) Objects created during the initialization phase 2303114237Snjlmethod parse were not being deleted, and 2) The object owner ID 2304114237Snjlmechanism to track objects was broken. 2305102550Siwasaki 2306114237SnjlFixed a problem where the use of the ASL Scope operator within a 2307114237Snjlcontrol method would result in an invalid opcode exception. 2308102550Siwasaki 2309114237SnjlFixed a problem introduced in the previous label where the buffer 2310114237Snjllength required for the _PRT structure was not being returned 2311114237Snjlcorrectly. 2312102550Siwasaki 2313102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2314114237Snjlshown below. These are the code and data sizes for the acpica.lib 2315114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2316114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 2317114237Snjlversion of the code includes the debug output trace mechanism and 2318114237Snjlhas a larger code and data size. Note that these values will 2319114237Snjlvary depending on the efficiency of the compiler and the compiler 2320114237Snjloptions used during generation. 2321102550Siwasaki 2322102550Siwasaki Previous Release (11_20_01) 2323114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 2324114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 2325102550Siwasaki 2326102550Siwasaki Current Release: 2327114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 2328114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 2329102550Siwasaki 2330102550Siwasaki 2) Linux: 2331102550Siwasaki 2332102550SiwasakiUpdated all files to apply cleanly against 2.4.16. 2333102550Siwasaki 2334104470SiwasakiAdded basic PCI Interrupt Routing Table (PRT) support for IA32 2335114237Snjl(acpi_pci.c), and unified the PRT code for IA32 and IA64. This 2336114237Snjlversion supports both static and dyanmic PRT entries, but dynamic 2337114237Snjlentries are treated as if they were static (not yet 2338114237Snjlreconfigurable). Architecture- specific code to use this data is 2339114237Snjlabsent on IA32 but should be available shortly. 2340102550Siwasaki 2341114237SnjlChanged the initialization sequence to start the ACPI interpreter 2342114237Snjl(acpi_init) prior to initialization of the PCI driver (pci_init) 2343114237Snjlin init/main.c. This ordering is required to support PRT and 2344114237Snjlfacilitate other (future) enhancement. A side effect is that the 2345114237SnjlACPI bus driver and certain device drivers can no longer be 2346114237Snjlloaded as modules. 2347102550Siwasaki 2348104470SiwasakiModified the 'make menuconfig' options to allow PCI Interrupt 2349104470SiwasakiRouting support to be included without the ACPI Bus and other 2350104470Siwasakidevice drivers. 2351102550Siwasaki 2352102550Siwasaki 3) ASL Compiler, version X2033: 2353102550Siwasaki 2354102550SiwasakiFixed some issues with the use of the new CopyObject and 2355102550SiwasakiDataTableRegion operators. Both are fully functional. 2356102550Siwasaki 2357102550Siwasaki ---------------------------------------- 2358102550SiwasakiSummary of changes for this label: 11_20_01 2359102550Siwasaki 2360102550Siwasaki 20 November 2001. Summary of changes for this release. 2361102550Siwasaki 2362102550Siwasaki 1) ACPI CA Core Subsystem: 2363102550Siwasaki 2364104470SiwasakiUpdated Index support to match ACPI 2.0 semantics. Storing a 2365104470SiwasakiInteger, String, or Buffer to an Index of a Buffer will store 2366104470Siwasakionly the least-significant byte of the source to the Indexed 2367104470Siwasakibuffer byte. Multiple writes are not performed. 2368102550Siwasaki 2369104470SiwasakiFixed a problem where the access type used in an AccessAs ASL 2370104470Siwasakioperator was not recorded correctly into the field object. 2371102550Siwasaki 2372102550SiwasakiFixed a problem where ASL Event objects were created in a 2373114237Snjlsignalled state. Events are now created in an unsignalled state. 2374102550Siwasaki 2375114237SnjlThe internal object cache is now purged after table loading and 2376114237Snjlinitialization to reduce the use of dynamic kernel memory -- on 2377114237Snjlthe assumption that object use is greatest during the parse phase 2378114237Snjlof the entire table (versus the run-time use of individual 2379114237Snjlcontrol methods.) 2380102550Siwasaki 2381102550SiwasakiACPI 2.0 variable-length packages are now fully operational. 2382102550Siwasaki 2383104470SiwasakiCode and Data Size: Code and Data optimizations have permitted 2384114237Snjlnew feature development with an actual reduction in the library 2385114237Snjlsize. Current core subsystem library sizes are shown below. 2386114237SnjlThese are the code and data sizes for the acpica.lib produced by 2387114237Snjlthe Microsoft Visual C++ 6.0 compiler, and these values do not 2388114237Snjlinclude any ACPI driver or OSPM code. The debug version of the 2389114237Snjlcode includes the debug output trace mechanism and has a larger 2390114237Snjlcode and data size. Note that these values will vary depending 2391114237Snjlon the efficiency of the compiler and the compiler options used 2392114237Snjlduring generation. 2393102550Siwasaki 2394102550Siwasaki Previous Release (11_09_01): 2395114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 2396114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 2397102550Siwasaki 2398102550Siwasaki Current Release: 2399114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 2400114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 2401102550Siwasaki 2402102550Siwasaki 2) Linux: 2403102550Siwasaki 2404114237SnjlEnhanced the ACPI boot-time initialization code to allow the use 2405114237Snjlof Local APIC tables for processor enumeration on IA-32, and to 2406114237Snjlpave the way for a fully MPS-free boot (on SMP systems) in the 2407114237Snjlnear future. This functionality replaces 2408114237Snjlarch/i386/kernel/acpitables.c, which was introduced in an earlier 2409114237Snjl2.4.15-preX release. To enable this feature you must add 2410114237Snjl"acpi_boot=on" to the kernel command line -- see the help entry 2411114237Snjlfor CONFIG_ACPI_BOOT for more information. An IA-64 release is 2412114237Snjlin the works... 2413102550Siwasaki 2414114237SnjlRestructured the configuration options to allow boot-time table 2415114237Snjlparsing support without inclusion of the ACPI Interpreter (and 2416114237Snjlother) code. 2417102550Siwasaki 2418102550SiwasakiNOTE: This release does not include fixes for the reported 2419104470Siwasakievents, power-down, and thermal passive cooling issues (coming 2420104470Siwasakisoon). 2421102550Siwasaki 2422102550Siwasaki 3) ASL Compiler: 2423102550Siwasaki 2424114237SnjlAdded additional typechecking for Fields within restricted access 2425114237SnjlOperation Regions. All fields within EC and CMOS regions must be 2426114237Snjldeclared with ByteAcc. All fields withing SMBus regions must be 2427114237Snjldeclared with the BufferAcc access type. 2428102550Siwasaki 2429114237SnjlFixed a problem where the listing file output of control methods 2430114237Snjlno longer interleaved the actual AML code with the ASL source 2431114237Snjlcode. 2432102550Siwasaki 2433102550Siwasaki 2434102550Siwasaki 2435102550Siwasaki---------------------------------------- 2436102550SiwasakiSummary of changes for this label: 11_09_01 2437102550Siwasaki 2438102550Siwasaki1) ACPI CA Core Subsystem: 2439102550Siwasaki 2440114237SnjlImplemented ACPI 2.0-defined support for writes to fields with a 2441114237SnjlBuffer, String, or Integer source operand that is smaller than 2442114237Snjlthe target field. In these cases, the source operand is zero- 2443114237Snjlextended to fill the target field. 2444102550Siwasaki 2445104470SiwasakiFixed a problem where a Field starting bit offset (within the 2446104470Siwasakiparent operation region) was calculated incorrectly if the 2447104470Siwasakialignment of the field differed from the access width. This 2448114237Snjlaffected CreateWordField, CreateDwordField, CreateQwordField, and 2449114237Snjlpossibly other fields that use the "AccessAny" keyword. 2450102550Siwasaki 2451114237SnjlFixed a problem introduced in the 11_02_01 release where indirect 2452114237Snjlstores through method arguments did not operate correctly. 2453102550Siwasaki 2454102550Siwasaki2) Linux: 2455102550Siwasaki 2456102550SiwasakiImplemented boot-time ACPI table parsing support 2457114237Snjl(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code 2458114237Snjlfacilitates the use of ACPI tables (e.g. MADT, SRAT) rather than 2459114237Snjllegacy BIOS interfaces (e.g. MPS) for the configuration of system 2460114237Snjlprocessors, memory, and interrupts during setup_arch(). Note 2461114237Snjlthat this patch does not include the required architecture- 2462114237Snjlspecific changes required to apply this information -- subsequent 2463114237Snjlpatches will be posted for both IA32 and IA64 to achieve this. 2464102550Siwasaki 2465114237SnjlAdded low-level sleep support for IA32 platforms, courtesy of Pat 2466114237SnjlMochel. This allows IA32 systems to transition to/from various 2467114237Snjlsleeping states (e.g. S1, S3), although the lack of a centralized 2468114237Snjldriver model and power-manageable drivers will prevent its 2469114237Snjl(successful) use on most systems. 2470102550Siwasaki 2471114237SnjlRevamped the ACPI 'menuconfig' layout: created new "ACPI Support" 2472114237Snjlsubmenu, unified IA32 and IA64 options, added new "Boot using 2473114237SnjlACPI tables" option, etc. 2474102550Siwasaki 2475114237SnjlIncreased the default timeout for the EC driver from 1ms to 10ms 2476114237Snjl(1000 cycles of 10us) to try to address AE_TIME errors during EC 2477114237Snjltransactions. 2478102550Siwasaki 2479102550Siwasaki ---------------------------------------- 2480102550SiwasakiSummary of changes for this label: 11_02_01 2481102550Siwasaki 2482102550Siwasaki1) ACPI CA Core Subsystem: 2483102550Siwasaki 2484102550SiwasakiACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access 2485102550Siwasaki(QWordAcc keyword). All ACPI 2.0 64-bit support is now 2486102550Siwasakiimplemented. 2487102550Siwasaki 2488114237SnjlOSL Interfaces: Several of the OSL (AcpiOs*) interfaces required 2489114237Snjlchanges to support ACPI 2.0 Qword field access. Read/Write 2490114237SnjlPciConfiguration(), Read/Write Memory(), and Read/Write Port() 2491114237Snjlnow accept an ACPI_INTEGER (64 bits) as the value parameter. 2492114237SnjlAlso, the value parameter for the address space handler interface 2493114237Snjlis now an ACPI_INTEGER. OSL implementations of these interfaces 2494114237Snjlmust now handle the case where the Width parameter is 64. 2495102550Siwasaki 2496104470SiwasakiIndex Fields: Fixed a problem where unaligned bit assembly and 2497104470Siwasakidisassembly for IndexFields was not supported correctly. 2498102550Siwasaki 2499102550SiwasakiIndex and Bank Fields: Nested Index and Bank Fields are now 2500104470Siwasakisupported. During field access, a check is performed to ensure 2501114237Snjlthat the value written to an Index or Bank register is not out of 2502114237Snjlthe range of the register. The Index (or Bank) register is 2503114237Snjlwritten before each access to the field data. Future support will 2504114237Snjlinclude allowing individual IndexFields to be wider than the 2505114237SnjlDataRegister width. 2506102550Siwasaki 2507114237SnjlFields: Fixed a problem where the AML interpreter was incorrectly 2508114237Snjlattempting to write beyond the end of a Field/OpRegion. This was 2509114237Snjla boundary case that occurred when a DWORD field was written to a 2510114237SnjlBYTE access OpRegion, forcing multiple writes and causing the 2511114237Snjlinterpreter to write one datum too many. 2512102550Siwasaki 2513102550SiwasakiFields: Fixed a problem with Field/OpRegion access where the 2514114237Snjlstarting bit address of a field was incorrectly calculated if the 2515114237Snjlcurrent access type was wider than a byte (WordAcc, DwordAcc, or 2516114237SnjlQwordAcc). 2517102550Siwasaki 2518104470SiwasakiFields: Fixed a problem where forward references to individual 2519104470SiwasakiFieldUnits (individual Field names within a Field definition) 2520102550Siwasakiwere not resolved during the AML table load. 2521102550Siwasaki 2522104470SiwasakiFields: Fixed a problem where forward references from a Field 2523104470Siwasakidefinition to the parent Operation Region definition were not 2524104470Siwasakiresolved during the AML table load. 2525104470Siwasaki 2526114237SnjlFields: Duplicate FieldUnit names within a scope are now detected 2527114237Snjlduring AML table load. 2528102550Siwasaki 2529102550SiwasakiAcpi Interfaces: Fixed a problem where the AcpiGetName() 2530102550Siwasakiinterface returned an incorrect name for the root node. 2531102550Siwasaki 2532104470SiwasakiCode and Data Size: Code and Data optimizations have permitted 2533114237Snjlnew feature development with an actual reduction in the library 2534114237Snjlsize. Current core subsystem library sizes are shown below. 2535114237SnjlThese are the code and data sizes for the acpica.lib produced by 2536114237Snjlthe Microsoft Visual C++ 6.0 compiler, and these values do not 2537114237Snjlinclude any ACPI driver or OSPM code. The debug version of the 2538114237Snjlcode includes the debug output trace mechanism and has a larger 2539114237Snjlcode and data size. Note that these values will vary depending 2540114237Snjlon the efficiency of the compiler and the compiler options used 2541114237Snjlduring generation. 2542102550Siwasaki 2543102550Siwasaki Previous Release (10_18_01): 2544114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 2545114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 2546102550Siwasaki 2547102550Siwasaki Current Release: 2548114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 2549114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 2550102550Siwasaki 2551102550Siwasaki 2) Linux: 2552102550Siwasaki 2553102550SiwasakiImproved /proc processor output (Pavel Machek) Re-added 2554102550SiwasakiMODULE_LICENSE("GPL") to all modules. 2555102550Siwasaki 2556102550Siwasaki 3) ASL Compiler version X2030: 2557102550Siwasaki 2558104470SiwasakiDuplicate FieldUnit names within a scope are now detected and 2559104470Siwasakiflagged as errors. 2560102550Siwasaki 2561102550Siwasaki 4) Documentation: 2562102550Siwasaki 2563104470SiwasakiProgrammer Reference updated to reflect OSL and address space 2564104470Siwasakihandler interface changes described above. 2565102550Siwasaki 2566102550Siwasaki---------------------------------------- 2567102550SiwasakiSummary of changes for this label: 10_18_01 2568102550Siwasaki 2569102550SiwasakiACPI CA Core Subsystem: 2570102550Siwasaki 2571102550SiwasakiFixed a problem with the internal object reference count 2572104470Siwasakimechanism that occasionally caused premature object deletion. 2573104470SiwasakiThis resolves all of the outstanding problem reports where an 2574104470Siwasakiobject is deleted in the middle of an interpreter evaluation. 2575114237SnjlAlthough this problem only showed up in rather obscure cases, the 2576114237Snjlsolution to the problem involved an adjustment of all reference 2577114237Snjlcounts involving objects attached to namespace nodes. 2578102550Siwasaki 2579102550SiwasakiFixed a problem with Field support in the interpreter where 2580114237Snjlwriting to an aligned field whose length is an exact multiple (2 2581114237Snjlor greater) of the field access granularity would cause an 2582104470Siwasakiattempt to write beyond the end of the field. 2583102550Siwasaki 2584102550SiwasakiThe top level AML opcode execution functions within the 2585102550Siwasakiinterpreter have been renamed with a more meaningful and 2586102550Siwasakiconsistent naming convention. The modules exmonad.c and 2587102550Siwasakiexdyadic.c were eliminated. New modules are exoparg1.c, 2588102550Siwasakiexoparg2.c, exoparg3.c, and exoparg6.c. 2589102550Siwasaki 2590114237SnjlSupport for the ACPI 2.0 "Mid" ASL operator has been implemented. 2591102550Siwasaki 2592114237SnjlFixed a problem where the AML debugger was causing some internal 2593114237Snjlobjects to not be deleted during subsystem termination. 2594102550Siwasaki 2595104470SiwasakiFixed a problem with the external AcpiEvaluateObject interface 2596104470Siwasakiwhere the subsystem would fault if the named object to be 2597104470Siwasakievaluated refered to a constant such as Zero, Ones, etc. 2598102550Siwasaki 2599102550SiwasakiFixed a problem with IndexFields and BankFields where the 2600114237Snjlsubsystem would fault if the index, data, or bank registers were 2601114237Snjlnot defined in the same scope as the field itself. 2602102550Siwasaki 2603104470SiwasakiAdded printf format string checking for compilers that support 2604104470Siwasakithis feature. Corrected more than 50 instances of issues with 2605104470Siwasakiformat specifiers within invocations of ACPI_DEBUG_PRINT 2606104470Siwasakithroughout the core subsystem code. 2607102550Siwasaki 2608104470SiwasakiThe ASL "Revision" operator now returns the ACPI support level 2609104470Siwasakiimplemented in the core - the value "2" since the ACPI 2.0 2610104470Siwasakisupport is more than 50% implemented. 2611102550Siwasaki 2612114237SnjlEnhanced the output of the AML debugger "dump namespace" command 2613114237Snjlto output in a more human-readable form. 2614102550Siwasaki 2615114237SnjlCurrent core subsystem library code sizes are shown below. These 2616114237Snjlare the code and data sizes for the acpica.lib produced by the 2617114237SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 2618114237Snjlinclude any ACPI driver or OSPM code. The debug version of the 2619114237Snjlcode includes the full debug trace mechanism -- leading to a much 2620114237Snjllarger code and data size. Note that these values will vary 2621114237Snjldepending on the efficiency of the compiler and the compiler 2622114237Snjloptions used during generation. 2623102550Siwasaki 2624102550Siwasaki Previous Label (09_20_01): 2625114237Snjl Non-Debug Version: 65K Code, 5K Data, 70K Total 2626114237Snjl Debug Version: 138K Code, 58K Data, 196K Total 2627102550Siwasaki 2628102550Siwasaki This Label: 2629102550Siwasaki 2630114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 2631114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 2632114237Snjl 2633102550SiwasakiLinux: 2634102550Siwasaki 2635104470SiwasakiImplemented a "Bad BIOS Blacklist" to track machines that have 2636104470Siwasakiknown ASL/AML problems. 2637102550Siwasaki 2638102550SiwasakiEnhanced the /proc interface for the thermal zone driver and 2639104470Siwasakiadded support for _HOT (the critical suspend trip point). The 2640114237Snjl'info' file now includes threshold/policy information, and allows 2641114237Snjlsetting of _SCP (cooling preference) and _TZP (polling frequency) 2642114237Snjlvalues to the 'info' file. Examples: "echo tzp=5 > info" sets the 2643114237Snjlpolling frequency to 5 seconds, and "echo scp=1 > info" sets the 2644114237Snjlcooling preference to the passive/quiet mode (if supported by the 2645114237SnjlASL). 2646102550Siwasaki 2647104470SiwasakiImplemented a workaround for a gcc bug that resuted in an OOPs 2648104470Siwasakiwhen loading the control method battery driver. 2649102550Siwasaki 2650102550Siwasaki ---------------------------------------- 2651102550SiwasakiSummary of changes for this label: 09_20_01 2652102550Siwasaki 2653102550Siwasaki ACPI CA Core Subsystem: 2654102550Siwasaki 2655104470SiwasakiThe AcpiEnableEvent and AcpiDisableEvent interfaces have been 2656104470Siwasakimodified to allow individual GPE levels to be flagged as wake- 2657114237Snjlenabled (i.e., these GPEs are to remain enabled when the platform 2658114237Snjlsleeps.) 2659102550Siwasaki 2660104470SiwasakiThe AcpiEnterSleepState and AcpiLeaveSleepState interfaces now 2661104470Siwasakisupport wake-enabled GPEs. This means that upon entering the 2662104470Siwasakisleep state, all GPEs that are not wake-enabled are disabled. 2663104470SiwasakiWhen leaving the sleep state, these GPEs are reenabled. 2664102550Siwasaki 2665114237SnjlA local double-precision divide/modulo module has been added to 2666114237Snjlenhance portability to OS kernels where a 64-bit math library is 2667114237Snjlnot available. The new module is "utmath.c". 2668102550Siwasaki 2669104470SiwasakiSeveral optimizations have been made to reduce the use of CPU 2670114237Snjlstack. Originally over 2K, the maximum stack usage is now below 2671114237Snjl2K at 1860 bytes (1.82k) 2672102550Siwasaki 2673114237SnjlFixed a problem with the AcpiGetFirmwareTable interface where the 2674114237Snjlroot table pointer was not mapped into a logical address 2675104470Siwasakiproperly. 2676102550Siwasaki 2677104470SiwasakiFixed a problem where a NULL pointer was being dereferenced in 2678104470Siwasakithe interpreter code for the ASL Notify operator. 2679102550Siwasaki 2680102550SiwasakiFixed a problem where the use of the ASL Revision operator 2681114237Snjlreturned an error. This operator now returns the current version 2682114237Snjlof the ACPI CA core subsystem. 2683102550Siwasaki 2684114237SnjlFixed a problem where objects passed as control method parameters 2685114237Snjlto AcpiEvaluateObject were always deleted at method termination. 2686114237SnjlHowever, these objects may end up being stored into the namespace 2687114237Snjlby the called method. The object reference count mechanism was 2688114237Snjlapplied to these objects instead of a force delete. 2689102550Siwasaki 2690114237SnjlFixed a problem where static strings or buffers (contained in the 2691114237SnjlAML code) that are declared as package elements within the ASL 2692114237Snjlcode could cause a fault because the interpreter would attempt to 2693114237Snjldelete them. These objects are now marked with the "static 2694114237Snjlobject" flag to prevent any attempt to delete them. 2695102550Siwasaki 2696114237SnjlImplemented an interpreter optimization to use operands directly 2697114237Snjlfrom the state object instead of extracting the operands to local 2698114237Snjlvariables. This reduces stack use and code size, and improves 2699114237Snjlperformance. 2700102550Siwasaki 2701102550SiwasakiThe module exxface.c was eliminated as it was an unnecessary 2702102550Siwasakiextra layer of code. 2703102550Siwasaki 2704114237SnjlCurrent core subsystem library code sizes are shown below. These 2705114237Snjlare the code and data sizes for the acpica.lib produced by the 2706114237SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 2707114237Snjlinclude any ACPI driver or OSPM code. The debug version of the 2708114237Snjlcode includes the full debug trace mechanism -- leading to a much 2709114237Snjllarger code and data size. Note that these values will vary 2710114237Snjldepending on the efficiency of the compiler and the compiler 2711114237Snjloptions used during generation. 2712102550Siwasaki 2713102550Siwasaki Non-Debug Version: 65K Code, 5K Data, 70K Total 2714114237Snjl(Previously 69K) Debug Version: 138K Code, 58K Data, 196K 2715114237SnjlTotal (Previously 195K) 2716102550Siwasaki 2717102550SiwasakiLinux: 2718102550Siwasaki 2719114237SnjlSupport for ACPI 2.0 64-bit integers has been added. All ACPI 2720114237SnjlInteger objects are now 64 bits wide 2721102550Siwasaki 2722114237SnjlAll Acpi data types and structures are now in lower case. Only 2723114237SnjlAcpi macros are upper case for differentiation. 2724102550Siwasaki 2725102550Siwasaki Documentation: 2726102550Siwasaki 2727102550SiwasakiChanges to the external interfaces as described above. 2728102550Siwasaki 2729102550Siwasaki ---------------------------------------- 2730102550SiwasakiSummary of changes for this label: 08_31_01 2731102550Siwasaki 2732102550Siwasaki ACPI CA Core Subsystem: 2733102550Siwasaki 2734114237SnjlA bug with interpreter implementation of the ASL Divide operator 2735114237Snjlwas found and fixed. The implicit function return value (not the 2736114237Snjlexplicit store operands) was returning the remainder instead of 2737114237Snjlthe quotient. This was a longstanding bug and it fixes several 2738114237Snjlknown outstanding issues on various platforms. 2739102550Siwasaki 2740104470SiwasakiThe ACPI_DEBUG_PRINT and function trace entry/exit macros have 2741104470Siwasakibeen further optimized for size. There are 700 invocations of 2742104470Siwasakithe DEBUG_PRINT macro alone, so each optimization reduces the 2743104470Siwasakisize of the debug version of the subsystem significantly. 2744102550Siwasaki 2745114237SnjlA stack trace mechanism has been implemented. The maximum stack 2746114237Snjlusage is about 2K on 32-bit platforms. The debugger command 2747114237Snjl"stat stack" will display the current maximum stack usage. 2748102550Siwasaki 2749114237SnjlAll public symbols and global variables within the subsystem are 2750114237Snjlnow prefixed with the string "Acpi". This keeps all of the 2751114237Snjlsymbols grouped together in a kernel map, and avoids conflicts 2752114237Snjlwith other kernel subsystems. 2753102550Siwasaki 2754114237SnjlMost of the internal fixed lookup tables have been moved into the 2755114237Snjlcode segment via the const operator. 2756102550Siwasaki 2757104470SiwasakiSeveral enhancements have been made to the interpreter to both 2758104470Siwasakireduce the code size and improve performance. 2759102550Siwasaki 2760114237SnjlCurrent core subsystem library code sizes are shown below. These 2761114237Snjlare the code and data sizes for the acpica.lib produced by the 2762114237SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 2763114237Snjlinclude any ACPI driver or OSPM code. The debug version of the 2764114237Snjlcode includes the full debug trace mechanism which contains over 2765114237Snjl700 invocations of the DEBUG_PRINT macro, 500 function entry 2766114237Snjlmacro invocations, and over 900 function exit macro invocations - 2767114237Snjl- leading to a much larger code and data size. Note that these 2768114237Snjlvalues will vary depending on the efficiency of the compiler and 2769114237Snjlthe compiler options used during generation. 2770102550Siwasaki 2771102550Siwasaki Non-Debug Version: 64K Code, 5K Data, 69K Total 2772102550SiwasakiDebug Version: 137K Code, 58K Data, 195K Total 2773102550Siwasaki 2774102550Siwasaki Linux: 2775102550Siwasaki 2776104470SiwasakiImplemented wbinvd() macro, pending a kernel-wide definition. 2777102550Siwasaki 2778102550SiwasakiFixed /proc/acpi/event to handle poll() and short reads. 2779102550Siwasaki 2780102550Siwasaki ASL Compiler, version X2026: 2781102550Siwasaki 2782104470SiwasakiFixed a problem introduced in the previous label where the AML 2783104470Siwasakicode emitted for package objects produced packages with zero 2784104470Siwasakilength. 2785102550Siwasaki 2786102550Siwasaki ---------------------------------------- 2787102550SiwasakiSummary of changes for this label: 08_16_01 2788102550Siwasaki 2789102550SiwasakiACPI CA Core Subsystem: 2790102550Siwasaki 2791114237SnjlThe following ACPI 2.0 ASL operators have been implemented in the 2792114237SnjlAML interpreter (These are already supported by the Intel ASL 2793114237Snjlcompiler): ToDecimalString, ToHexString, ToString, ToInteger, 2794114237Snjland ToBuffer. Support for 64-bit AML constants is implemented in 2795114237Snjlthe AML parser, debugger, and disassembler. 2796102550Siwasaki 2797114237SnjlThe internal memory tracking mechanism (leak detection code) has 2798114237Snjlbeen upgraded to reduce the memory overhead (a separate tracking 2799114237Snjlblock is no longer allocated for each memory allocation), and now 2800114237Snjlsupports all of the internal object caches. 2801102550Siwasaki 2802114237SnjlThe data structures and code for the internal object caches have 2803114237Snjlbeen coelesced and optimized so that there is a single cache and 2804114237Snjlmemory list data structure and a single group of functions that 2805114237Snjlimplement generic cache management. This has reduced the code 2806114237Snjlsize in both the debug and release versions of the subsystem. 2807102550Siwasaki 2808102550SiwasakiThe DEBUG_PRINT macro(s) have been optimized for size and 2809102550Siwasakireplaced by ACPI_DEBUG_PRINT. The syntax for this macro is 2810102550Siwasakislightly different, because it generates a single call to an 2811114237Snjlinternal function. This results in a savings of about 90 bytes 2812114237Snjlper invocation, resulting in an overall code and data savings of 2813114237Snjlabout 16% in the debug version of the subsystem. 2814102550Siwasaki 2815102550Siwasaki Linux: 2816102550Siwasaki 2817114237SnjlFixed C3 disk corruption problems and re-enabled C3 on supporting 2818114237Snjlmachines. 2819102550Siwasaki 2820102550SiwasakiIntegrated low-level sleep code by Patrick Mochel. 2821102550Siwasaki 2822102550SiwasakiFurther tweaked source code Linuxization. 2823102550Siwasaki 2824102550SiwasakiOther minor fixes. 2825102550Siwasaki 2826102550Siwasaki ASL Compiler: 2827102550Siwasaki 2828114237SnjlSupport for ACPI 2.0 variable length packages is fixed/completed. 2829102550Siwasaki 2830114237SnjlFixed a problem where the optional length parameter for the ACPI 2831114237Snjl2.0 ToString operator. 2832102550Siwasaki 2833114237SnjlFixed multiple extraneous error messages when a syntax error is 2834114237Snjldetected within the declaration line of a control method. 2835102550Siwasaki 2836102550Siwasaki ---------------------------------------- 2837102550SiwasakiSummary of changes for this label: 07_17_01 2838102550Siwasaki 2839102550SiwasakiACPI CA Core Subsystem: 2840102550Siwasaki 2841104470SiwasakiAdded a new interface named AcpiGetFirmwareTable to obtain any 2842114237SnjlACPI table via the ACPI signature. The interface can be called 2843114237Snjlat any time during kernel initialization, even before the kernel 2844114237Snjlvirtual memory manager is initialized and paging is enabled. 2845114237SnjlThis allows kernel subsystems to obtain ACPI tables very early, 2846114237Snjleven before the ACPI CA subsystem is initialized. 2847102550Siwasaki 2848104470SiwasakiFixed a problem where Fields defined with the AnyAcc attribute 2849104470Siwasakicould be resolved to the incorrect address under the following 2850114237Snjlconditions: 1) the field width is larger than 8 bits and 2) the 2851114237Snjlparent operation region is not defined on a DWORD boundary. 2852102550Siwasaki 2853114237SnjlFixed a problem where the interpreter is not being locked during 2854114237Snjlnamespace initialization (during execution of the _INI control 2855114237Snjlmethods), causing an error when an attempt is made to release it 2856114237Snjllater. 2857102550Siwasaki 2858104470SiwasakiACPI 2.0 support in the AML Interpreter has begun and will be 2859114237Snjlongoing throughout the rest of this year. In this label, The Mod 2860114237Snjloperator is implemented. 2861102550Siwasaki 2862102550SiwasakiAdded a new data type to contain full PCI addresses named 2863102550SiwasakiACPI_PCI_ID. This structure contains the PCI Segment, Bus, 2864102550SiwasakiDevice, and Function values. 2865102550Siwasaki 2866102550Siwasaki Linux: 2867102550Siwasaki 2868102550SiwasakiEnhanced the Linux version of the source code to change most 2869102550Siwasakicapitalized ACPI type names to lowercase. For example, all 2870114237Snjlinstances of ACPI_STATUS are changed to acpi_status. This will 2871114237Snjlresult in a large diff, but the change is strictly cosmetic and 2872114237Snjlaligns the CA code closer to the Linux coding standard. 2873102550Siwasaki 2874102550SiwasakiOSL Interfaces: 2875102550Siwasaki 2876114237SnjlThe interfaces to the PCI configuration space have been changed 2877114237Snjlto add the PCI Segment number and to split the single 32-bit 2878114237Snjlcombined DeviceFunction field into two 16-bit fields. This was 2879114237Snjlaccomplished by moving the four values that define an address in 2880114237SnjlPCI configuration space (segment, bus, device, and function) to 2881114237Snjlthe new ACPI_PCI_ID structure. 2882102550Siwasaki 2883104470SiwasakiThe changes to the PCI configuration space interfaces led to a 2884104470Siwasakireexamination of the complete set of address space access 2885114237Snjlinterfaces for PCI, I/O, and Memory. The previously existing 18 2886114237Snjlinterfaces have proven difficult to maintain (any small change 2887114237Snjlmust be propagated across at least 6 interfaces) and do not 2888114237Snjleasily allow for future expansion to 64 bits if necessary. Also, 2889114237Snjlon some systems, it would not be appropriate to demultiplex the 2890114237Snjlaccess width (8, 16, 32,or 64) before calling the OSL if the 2891114237Snjlcorresponding native OS interfaces contain a similar access width 2892114237Snjlparameter. For these reasons, the 18 address space interfaces 2893114237Snjlhave been replaced by these 6 new ones: 2894102550Siwasaki 2895102550SiwasakiAcpiOsReadPciConfiguration 2896102550SiwasakiAcpiOsWritePciConfiguration 2897102550SiwasakiAcpiOsReadMemory 2898102550SiwasakiAcpiOsWriteMemory 2899102550SiwasakiAcpiOsReadPort 2900102550SiwasakiAcpiOsWritePort 2901102550Siwasaki 2902114237SnjlAdded a new interface named AcpiOsGetRootPointer to allow the OSL 2903114237Snjlto perform the platform and/or OS-specific actions necessary to 2904114237Snjlobtain the ACPI RSDP table pointer. On IA-32 platforms, this 2905114237Snjlinterface will simply call down to the CA core to perform the low- 2906114237Snjlmemory search for the table. On IA-64, the RSDP is obtained from 2907114237SnjlEFI. Migrating this interface to the OSL allows the CA core to 2908114237Snjlremain OS and platform independent. 2909102550Siwasaki 2910104470SiwasakiAdded a new interface named AcpiOsSignal to provide a generic 2911114237Snjl"function code and pointer" interface for various miscellaneous 2912114237Snjlsignals and notifications that must be made to the host OS. The 2913114237Snjlfirst such signals are intended to support the ASL Fatal and 2914114237SnjlBreakpoint operators. In the latter case, the AcpiOsBreakpoint 2915114237Snjlinterface has been obsoleted. 2916102550Siwasaki 2917102550SiwasakiThe definition of the AcpiFormatException interface has been 2918114237Snjlchanged to simplify its use. The caller no longer must supply a 2919114237Snjlbuffer to the call; A pointer to a const string is now returned 2920114237Snjldirectly. This allows the call to be easily used in printf 2921114237Snjlstatements, etc. since the caller does not have to manage a local 2922114237Snjlbuffer. 2923102550Siwasaki 2924114237Snjl 2925102550Siwasaki ASL Compiler, Version X2025: 2926102550Siwasaki 2927114237SnjlThe ACPI 2.0 Switch/Case/Default operators have been implemented 2928114237Snjland are fully functional. They will work with all ACPI 1.0 2929114237Snjlinterpreters, since the operators are simply translated to 2930114237SnjlIf/Else pairs. 2931102550Siwasaki 2932104470SiwasakiThe ACPI 2.0 ElseIf operator is implemented and will also work 2933104470Siwasakiwith 1.0 interpreters, for the same reason. 2934102550Siwasaki 2935114237SnjlImplemented support for ACPI 2.0 variable-length packages. These 2936114237Snjlpackages have a separate opcode, and their size is determined by 2937114237Snjlthe interpreter at run-time. 2938102550Siwasaki 2939114237SnjlDocumentation The ACPI CA Programmer Reference has been updated 2940114237Snjlto reflect the new interfaces and changes to existing interfaces. 2941102550Siwasaki 2942102550Siwasaki ------------------------------------------ 2943102550SiwasakiSummary of changes for this label: 06_15_01 2944102550Siwasaki 2945102550Siwasaki ACPI CA Core Subsystem: 2946102550Siwasaki 2947102550SiwasakiFixed a problem where a DWORD-accessed field within a Buffer 2948114237Snjlobject would get its byte address inadvertently rounded down to 2949114237Snjlthe nearest DWORD. Buffers are always Byte-accessible. 2950102550Siwasaki 2951102550Siwasaki ASL Compiler, version X2024: 2952102550Siwasaki 2953114237SnjlFixed a problem where the Switch() operator would either fault or 2954114237Snjlhang the compiler. Note however, that the AML code for this ACPI 2955114237Snjl2.0 operator is not yet implemented. 2956102550Siwasaki 2957114237SnjlCompiler uses the new AcpiOsGetTimer interface to obtain compile 2958114237Snjltimings. 2959102550Siwasaki 2960114237SnjlImplementation of the CreateField operator automatically converts 2961114237Snjla reference to a named field within a resource descriptor from a 2962114237Snjlbyte offset to a bit offset if required. 2963102550Siwasaki 2964102550SiwasakiAdded some missing named fields from the resource descriptor 2965104470Siwasakisupport. These are the names that are automatically created by 2966114237Snjlthe compiler to reference fields within a descriptor. They are 2967114237Snjlonly valid at compile time and are not passed through to the AML 2968114237Snjlinterpreter. 2969102550Siwasaki 2970104470SiwasakiResource descriptor named fields are now typed as Integers and 2971104470Siwasakisubject to compile-time typechecking when used in expressions. 2972102550Siwasaki 2973102550Siwasaki ------------------------------------------ 2974102550SiwasakiSummary of changes for this label: 05_18_01 2975102550Siwasaki 2976102550Siwasaki ACPI CA Core Subsystem: 2977102550Siwasaki 2978114237SnjlFixed a couple of problems in the Field support code where bits 2979114237Snjlfrom adjacent fields could be returned along with the proper 2980114237Snjlfield bits. Restructured the field support code to improve 2981114237Snjlperformance, readability and maintainability. 2982102550Siwasaki 2983114237SnjlNew DEBUG_PRINTP macro automatically inserts the procedure name 2984114237Snjlinto the output, saving hundreds of copies of procedure name 2985114237Snjlstrings within the source, shrinking the memory footprint of the 2986114237Snjldebug version of the core subsystem. 2987102550Siwasaki 2988102550Siwasaki Source Code Structure: 2989102550Siwasaki 2990104470SiwasakiThe source code directory tree was restructured to reflect the 2991114237Snjlcurrent organization of the component architecture. Some files 2992114237Snjland directories have been moved and/or renamed. 2993102550Siwasaki 2994102550Siwasaki Linux: 2995102550Siwasaki 2996102550SiwasakiFixed leaking kacpidpc processes. 2997102550Siwasaki 2998102550SiwasakiFixed queueing event data even when /proc/acpi/event is not 2999102550Siwasakiopened. 3000102550Siwasaki 3001102550Siwasaki ASL Compiler, version X2020: 3002102550Siwasaki 3003114237SnjlMemory allocation performance enhancement - over 24X compile time 3004114237Snjlimprovement on large ASL files. Parse nodes and namestring 3005114237Snjlbuffers are now allocated from a large internal compiler buffer. 3006102550Siwasaki 3007102550SiwasakiThe temporary .SRC file is deleted unless the "-s" option is 3008102550Siwasakispecified 3009102550Siwasaki 3010104470SiwasakiThe "-d" debug output option now sends all output to the .DBG 3011104470Siwasakifile instead of the console. 3012102550Siwasaki 3013102550Siwasaki"External" second parameter is now optional 3014102550Siwasaki 3015102550Siwasaki"ElseIf" syntax now properly allows the predicate 3016102550Siwasaki 3017102550SiwasakiLast operand to "Load" now recognized as a Target operand 3018102550Siwasaki 3019102550SiwasakiDebug object can now be used anywhere as a normal object. 3020102550Siwasaki 3021102550SiwasakiResourceTemplate now returns an object of type BUFFER 3022102550Siwasaki 3023102550SiwasakiEISAID now returns an object of type INTEGER 3024102550Siwasaki 3025102550Siwasaki"Index" now works with a STRING operand 3026102550Siwasaki 3027102550Siwasaki"LoadTable" now accepts optional parameters 3028102550Siwasaki 3029102550Siwasaki"ToString" length parameter is now optional 3030102550Siwasaki 3031102550Siwasaki"Interrupt (ResourceType," parse error fixed. 3032102550Siwasaki 3033104470Siwasaki"Register" with a user-defined region space parse error fixed 3034102550Siwasaki 3035114237SnjlEscaped backslash at the end of a string ("\\") scan/parse error 3036114237Snjlfixed 3037102550Siwasaki 3038102550Siwasaki"Revision" is now an object of type INTEGER. 3039102550Siwasaki 3040102550Siwasaki 3041102550Siwasaki 3042102550Siwasaki------------------------------------------ 3043102550SiwasakiSummary of changes for this label: 05_02_01 3044102550Siwasaki 3045102550SiwasakiLinux: 3046102550Siwasaki 3047102550Siwasaki/proc/acpi/event now blocks properly. 3048102550Siwasaki 3049102550SiwasakiRemoved /proc/sys/acpi. You can still dump your DSDT from 3050102550Siwasaki/proc/acpi/dsdt. 3051102550Siwasaki 3052102550Siwasaki ACPI CA Core Subsystem: 3053102550Siwasaki 3054104470SiwasakiFixed a problem introduced in the previous label where some of 3055104470Siwasakithe "small" resource descriptor types were not recognized. 3056102550Siwasaki 3057102550SiwasakiImproved error messages for the case where an ASL Field is 3058102550Siwasakioutside the range of the parent operation region. 3059102550Siwasaki 3060102550Siwasaki ASL Compiler, version X2018: 3061102550Siwasaki 3062102550SiwasakiAdded error detection for ASL Fields that extend beyond the 3063114237Snjllength of the parent operation region (only if the length of the 3064114237Snjlregion is known at compile time.) This includes fields that have 3065114237Snjla minimum access width that is smaller than the parent region, 3066114237Snjland individual field units that are partially or entirely beyond 3067114237Snjlthe extent of the parent. 3068102550Siwasaki 3069102550Siwasaki 3070102550Siwasaki 3071102550Siwasaki------------------------------------------ 3072102550SiwasakiSummary of changes for this label: 04_27_01 3073102550Siwasaki 3074102550Siwasaki ACPI CA Core Subsystem: 3075102550Siwasaki 3076104470SiwasakiFixed a problem where the namespace mutex could be released at 3077114237Snjlthe wrong time during execution of AcpiRemoveAddressSpaceHandler. 3078102550Siwasaki 3079104470SiwasakiAdded optional thread ID output for debug traces, to simplify 3080114237Snjldebugging of multiple threads. Added context switch notification 3081114237Snjlwhen the debug code realizes that a different thread is now 3082114237Snjlexecuting ACPI code. 3083102550Siwasaki 3084114237SnjlSome additional external data types have been prefixed with the 3085114237Snjlstring "ACPI_" for consistency. This may effect existing code. 3086114237SnjlThe data types affected are the external callback typedefs - 3087114237Snjle.g., WALK_CALLBACK becomes ACPI_WALK_CALLBACK. 3088102550Siwasaki 3089102550Siwasaki Linux: 3090102550Siwasaki 3091102550SiwasakiFixed an issue with the OSL semaphore implementation where a 3092102550Siwasakithread was waking up with an error from receiving a SIGCHLD 3093102550Siwasakisignal. 3094102550Siwasaki 3095114237SnjlLinux version of ACPI CA now uses the system C library for string 3096114237Snjlmanipulation routines instead of a local implementation. 3097102550Siwasaki 3098102550SiwasakiCleaned up comments and removed TBDs. 3099102550Siwasaki 3100102550Siwasaki ASL Compiler, version X2017: 3101102550Siwasaki 3102102550SiwasakiEnhanced error detection and reporting for all file I/O 3103102550Siwasakioperations. 3104102550Siwasaki 3105102550Siwasaki Documentation: 3106102550Siwasaki 3107102550SiwasakiProgrammer Reference updated to version 1.06. 3108102550Siwasaki 3109102550Siwasaki 3110102550Siwasaki 3111102550Siwasaki------------------------------------------ 3112102550SiwasakiSummary of changes for this label: 04_13_01 3113102550Siwasaki 3114102550Siwasaki ACPI CA Core Subsystem: 3115102550Siwasaki 3116102550SiwasakiRestructured support for BufferFields and RegionFields. 3117104470SiwasakiBankFields support is now fully operational. All known 32-bit 3118114237Snjllimitations on field sizes have been removed. Both BufferFields 3119114237Snjland (Operation) RegionFields are now supported by the same field 3120114237Snjlmanagement code. 3121102550Siwasaki 3122114237SnjlResource support now supports QWORD address and IO resources. The 3123114237Snjl16/32/64 bit address structures and the Extended IRQ structure 3124114237Snjlhave been changed to properly handle Source Resource strings. 3125102550Siwasaki 3126114237SnjlA ThreadId of -1 is now used to indicate a "mutex not acquired" 3127114237Snjlcondition internally and must never be returned by 3128114237SnjlAcpiOsThreadId. This reserved value was changed from 0 since Unix 3129114237Snjlsystems allow a thread ID of 0. 3130102550Siwasaki 3131102550SiwasakiLinux: 3132102550Siwasaki 3133102550SiwasakiDriver code reorganized to enhance portability 3134102550Siwasaki 3135102550SiwasakiAdded a kernel configuration option to control ACPI_DEBUG 3136102550Siwasaki 3137102550SiwasakiFixed the EC driver to honor _GLK. 3138102550Siwasaki 3139102550SiwasakiASL Compiler, version X2016: 3140102550Siwasaki 3141114237SnjlFixed support for the "FixedHw" keyword. Previously, the FixedHw 3142114237Snjladdress space was set to 0, not 0x7f as it should be. 3143102550Siwasaki 3144102550Siwasaki ------------------------------------------ 3145102550SiwasakiSummary of changes for this label: 03_13_01 3146102550Siwasaki 3147102550Siwasaki ACPI CA Core Subsystem: 3148102550Siwasaki 3149104470SiwasakiDuring ACPI initialization, the _SB_._INI method is now run if 3150104470Siwasakipresent. 3151102550Siwasaki 3152102550SiwasakiNotify handler fix - notifies are deferred until the parent 3153102550Siwasakimethod completes execution. This fixes the "mutex already 3154102550Siwasakiacquired" issue seen occasionally. 3155102550Siwasaki 3156104470SiwasakiPart of the "implicit conversion" rules in ACPI 2.0 have been 3157114237Snjlfound to cause compatibility problems with existing ASL/AML. The 3158114237Snjlconvert "result-to-target-type" implementation has been removed 3159114237Snjlfor stores to method Args and Locals. Source operand conversion 3160114237Snjlis still fully implemented. Possible changes to ACPI 2.0 3161114237Snjlspecification pending. 3162102550Siwasaki 3163104470SiwasakiFix to AcpiRsCalculatePciRoutingTableLength to return correct 3164104470Siwasakilength. 3165102550Siwasaki 3166102550SiwasakiFix for compiler warnings for 64-bit compiles. 3167102550Siwasaki 3168102550Siwasaki Linux: 3169102550Siwasaki 3170102550Siwasaki/proc output aligned for easier parsing. 3171102550Siwasaki 3172102550SiwasakiRelease-version compile problem fixed. 3173102550Siwasaki 3174104470SiwasakiNew kernel configuration options documented in Configure.help. 3175102550Siwasaki 3176102550SiwasakiIBM 600E - Fixed Sleep button may generate "Invalid <NULL> 3177102550Siwasakicontext" message. 3178102550Siwasaki 3179102550Siwasaki OSPM: 3180102550Siwasaki 3181102550SiwasakiPower resource driver integrated with bus manager. 3182102550Siwasaki 3183102550SiwasakiFixed kernel fault during active cooling for thermal zones. 3184102550Siwasaki 3185102550SiwasakiSource Code: 3186102550Siwasaki 3187102550SiwasakiThe source code tree has been restructured. 3188102550Siwasaki 3189102550Siwasaki 3190102550Siwasaki 3191102550Siwasaki------------------------------------------ 3192102550SiwasakiSummary of changes for this label: 03_02_01 3193102550Siwasaki 3194102550Siwasaki Linux OS Services Layer (OSL): 3195102550Siwasaki 3196102550SiwasakiMajor revision of all Linux-specific code. 3197102550Siwasaki 3198102550SiwasakiModularized all ACPI-specific drivers. 3199102550Siwasaki 3200102550SiwasakiAdded new thermal zone and power resource drivers. 3201102550Siwasaki 3202114237SnjlRevamped /proc interface (new functionality is under /proc/acpi). 3203102550Siwasaki 3204102550SiwasakiNew kernel configuration options. 3205102550Siwasaki 3206102550Siwasaki Linux known issues: 3207102550Siwasaki 3208114237SnjlNew kernel configuration options not documented in Configure.help 3209114237Snjlyet. 3210102550Siwasaki 3211114237Snjl 3212102550SiwasakiModule dependencies not currently implemented. If used, they 3213102550Siwasakishould be loaded in this order: busmgr, power, ec, system, 3214102550Siwasakiprocessor, battery, ac_adapter, button, thermal. 3215102550Siwasaki 3216102550SiwasakiModules will not load if CONFIG_MODVERSION is set. 3217102550Siwasaki 3218102550SiwasakiIBM 600E - entering S5 may reboot instead of shutting down. 3219102550Siwasaki 3220104470SiwasakiIBM 600E - Sleep button may generate "Invalid <NULL> context" 3221104470Siwasakimessage. 3222102550Siwasaki 3223104470SiwasakiSome systems may fail with "execution mutex already acquired" 3224104470Siwasakimessage. 3225102550Siwasaki 3226102550Siwasaki ACPI CA Core Subsystem: 3227102550Siwasaki 3228114237SnjlAdded a new OSL Interface, AcpiOsGetThreadId. This was required 3229114237Snjlfor the deadlock detection code. Defined to return a non-zero, 3230114237Snjl32-bit thread ID for the currently executing thread. May be a 3231114237Snjlnon-zero constant integer on single-thread systems. 3232102550Siwasaki 3233104470SiwasakiImplemented deadlock detection for internal subsystem mutexes. 3234104470SiwasakiWe may add conditional compilation for this code (debug only) 3235104470Siwasakilater. 3236102550Siwasaki 3237104470SiwasakiASL/AML Mutex object semantics are now fully supported. This 3238114237Snjlincludes multiple acquires/releases by owner and support for the 3239114237SnjlMutex SyncLevel parameter. 3240102550Siwasaki 3241102550SiwasakiA new "Force Release" mechanism automatically frees all ASL 3242104470SiwasakiMutexes that have been acquired but not released when a thread 3243114237Snjlexits the interpreter. This forces conformance to the ACPI spec 3244114237Snjl("All mutexes must be released when an invocation exits") and 3245114237Snjlprevents deadlocked ASL threads. This mechanism can be expanded 3246114237Snjl(later) to monitor other resource acquisitions if OEM ASL code 3247114237Snjlcontinues to misbehave (which it will). 3248102550Siwasaki 3249104470SiwasakiSeveral new ACPI exception codes have been added for the Mutex 3250104470Siwasakisupport. 3251102550Siwasaki 3252104470SiwasakiRecursive method calls are now allowed and supported (the ACPI 3253114237Snjlspec does in fact allow recursive method calls.) The number of 3254114237Snjlrecursive calls is subject to the restrictions imposed by the 3255114237SnjlSERIALIZED method keyword and SyncLevel (ACPI 2.0) method 3256104470Siwasakiparameter. 3257102550Siwasaki 3258102550SiwasakiImplemented support for the SyncLevel parameter for control 3259102550Siwasakimethods (ACPI 2.0 feature) 3260102550Siwasaki 3261114237SnjlFixed a deadlock problem when multiple threads attempted to use 3262114237Snjlthe interpreter. 3263102550Siwasaki 3264102550SiwasakiFixed a problem where the string length of a String package 3265102550Siwasakielement was not always set in a package returned from 3266102550SiwasakiAcpiEvaluateObject. 3267102550Siwasaki 3268114237SnjlFixed a problem where the length of a String package element was 3269114237Snjlnot always included in the length of the overall package returned 3270114237Snjlfrom AcpiEvaluateObject. 3271102550Siwasaki 3272102550SiwasakiAdded external interfaces (Acpi*) to the ACPI debug memory 3273102550Siwasakimanager. This manager keeps a list of all outstanding 3274114237Snjlallocations, and can therefore detect memory leaks and attempts 3275114237Snjlto free memory blocks more than once. Useful for code such as the 3276114237Snjlpower manager, etc. May not be appropriate for device drivers. 3277114237SnjlPerformance with the debug code enabled is slow. 3278102550Siwasaki 3279102550SiwasakiThe ACPI Global Lock is now an optional hardware element. 3280102550Siwasaki 3281102550Siwasaki ASL Compiler Version X2015: 3282102550Siwasaki 3283102550SiwasakiIntegrated changes to allow the compiler to be generated on 3284102550Siwasakimultiple platforms. 3285102550Siwasaki 3286102550SiwasakiLinux makefile added to generate the compiler on Linux 3287102550Siwasaki 3288102550Siwasaki Source Code: 3289102550Siwasaki 3290102550SiwasakiAll platform-specific headers have been moved to their own 3291102550Siwasakisubdirectory, Include/Platform. 3292102550Siwasaki 3293102550SiwasakiNew source file added, Interpreter/ammutex.c 3294102550Siwasaki 3295102550SiwasakiNew header file, Include/acstruct.h 3296102550Siwasaki 3297102550Siwasaki Documentation: 3298102550Siwasaki 3299114237SnjlThe programmer reference has been updated for the following new 3300114237Snjlinterfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree 3301102550Siwasaki 3302102550Siwasaki ------------------------------------------ 3303102550SiwasakiSummary of changes for this label: 02_08_01 3304102550Siwasaki 3305102550SiwasakiCore ACPI CA Subsystem: Fixed a problem where an error was 3306104470Siwasakiincorrectly returned if the return resource buffer was larger 3307104470Siwasakithan the actual data (in the resource interfaces). 3308102550Siwasaki 3309114237SnjlReferences to named objects within packages are resolved to the 3310114237Snjlfull pathname string before packages are returned directly (via 3311114237Snjlthe AcpiEvaluateObject interface) or indirectly via the resource 3312114237Snjlinterfaces. 3313102550Siwasaki 3314102550SiwasakiLinux OS Services Layer (OSL): 3315102550Siwasaki 3316102550SiwasakiImproved /proc battery interface. 3317102550Siwasaki 3318102550Siwasaki 3319104470SiwasakiAdded C-state debugging output and other miscellaneous fixes. 3320102550Siwasaki 3321102550SiwasakiASL Compiler Version X2014: 3322102550Siwasaki 3323114237SnjlAll defined method arguments can now be used as local variables, 3324114237Snjlincluding the ones that are not actually passed in as parameters. 3325114237SnjlThe compiler tracks initialization of the arguments and issues an 3326114237Snjlexception if they are used without prior assignment (just like 3327114237Snjllocals). 3328102550Siwasaki 3329104470SiwasakiThe -o option now specifies a filename prefix that is used for 3330114237Snjlall output files, including the AML output file. Otherwise, the 3331114237Snjldefault behavior is as follows: 1) the AML goes to the file 3332114237Snjlspecified in the DSDT. 2) all other output files use the input 3333114237Snjlsource filename as the base. 3334102550Siwasaki 3335102550Siwasaki ------------------------------------------ 3336102550SiwasakiSummary of changes for this label: 01_25_01 3337102550Siwasaki 3338114237SnjlCore ACPI CA Subsystem: Restructured the implementation of object 3339114237Snjlstore support within the interpreter. This includes support for 3340114237Snjlthe Store operator as well as any ASL operators that include a 3341114237Snjltarget operand. 3342102550Siwasaki 3343102550SiwasakiPartially implemented support for Implicit Result-to-Target 3344114237Snjlconversion. This is when a result object is converted on the fly 3345114237Snjlto the type of an existing target object. Completion of this 3346114237Snjlsupport is pending further analysis of the ACPI specification 3347114237Snjlconcerning this matter. 3348102550Siwasaki 3349114237SnjlCPU-specific code has been removed from the subsystem (hardware 3350114237Snjldirectory). 3351102550Siwasaki 3352102550SiwasakiNew Power Management Timer functions added 3353102550Siwasaki 3354114237SnjlLinux OS Services Layer (OSL): Moved system state transition code 3355114237Snjlto the core, fixed it, and modified Linux OSL accordingly. 3356102550Siwasaki 3357102550SiwasakiFixed C2 and C3 latency calculations. 3358102550Siwasaki 3359102550Siwasaki 3360114237SnjlWe no longer use the compilation date for the version message on 3361114237Snjlinitialization, but retrieve the version from 3362102550SiwasakiAcpiGetSystemInfo(). 3363102550Siwasaki 3364102550SiwasakiIncorporated for fix Sony VAIO machines. 3365102550Siwasaki 3366104470SiwasakiDocumentation: The Programmer Reference has been updated and 3367104470Siwasakireformatted. 3368102550Siwasaki 3369102550Siwasaki 3370102550SiwasakiASL Compiler: Version X2013: Fixed a problem where the line 3371102550Siwasakinumbering and error reporting could get out of sync in the 3372102550Siwasakipresence of multiple include files. 3373102550Siwasaki 3374102550Siwasaki ------------------------------------------ 3375102550SiwasakiSummary of changes for this label: 01_15_01 3376102550Siwasaki 3377102550SiwasakiCore ACPI CA Subsystem: 3378102550Siwasaki 3379114237SnjlImplemented support for type conversions in the execution of the 3380114237SnjlASL Concatenate operator (The second operand is converted to 3381114237Snjlmatch the type of the first operand before concatenation.) 3382102550Siwasaki 3383102550SiwasakiSupport for implicit source operand conversion is partially 3384114237Snjlimplemented. The ASL source operand types Integer, Buffer, and 3385114237SnjlString are freely interchangeable for most ASL operators and are 3386114237Snjlconverted by the interpreter on the fly as required. Implicit 3387114237SnjlTarget operand conversion (where the result is converted to the 3388114237Snjltarget type before storing) is not yet implemented. 3389102550Siwasaki 3390102550SiwasakiSupport for 32-bit and 64-bit BCD integers is implemented. 3391102550Siwasaki 3392114237SnjlProblem fixed where a field read on an aligned field could cause 3393114237Snjla read past the end of the field. 3394102550Siwasaki 3395114237SnjlNew exception, AE_AML_NO_RETURN_VALUE, is returned when a method 3396114237Snjldoes not return a value, but the caller expects one. (The ASL 3397114237Snjlcompiler flags this as a warning.) 3398102550Siwasaki 3399102550SiwasakiASL Compiler: 3400102550Siwasaki 3401102550SiwasakiVersion X2011: 3402102550Siwasaki1. Static typechecking of all operands is implemented. This 3403102550Siwasakiprevents the use of invalid objects (such as using a Package 3404102550Siwasakiwhere an Integer is required) at compile time instead of at 3405102550Siwasakiinterpreter run-time. 3406114237Snjl2. The ASL source line is printed with ALL errors and warnings. 3407102550Siwasaki3. Bug fix for source EOF without final linefeed. 3408102550Siwasaki4. Debug option is split into a parse trace and a namespace 3409102550Siwasakitrace. 3410102550Siwasaki5. Namespace output option (-n) includes initial values for 3411102550Siwasakiintegers and strings. 3412102550Siwasaki6. Parse-only option added for quick syntax checking. 3413102550Siwasaki7. Compiler checks for duplicate ACPI name declarations 3414102550Siwasaki 3415102550SiwasakiVersion X2012: 3416102550Siwasaki1. Relaxed typechecking to allow interchangeability between 3417114237Snjlstrings, integers, and buffers. These types are now converted by 3418114237Snjlthe interpreter at runtime. 3419114237Snjl2. Compiler reports time taken by each internal subsystem in the 3420114237Snjldebug output file. 3421102550Siwasaki 3422102550Siwasaki 3423102550Siwasaki ------------------------------------------ 3424102550SiwasakiSummary of changes for this label: 12_14_00 3425102550Siwasaki 3426102550SiwasakiASL Compiler: 3427102550Siwasaki 3428104470SiwasakiThis is the first official release of the compiler. Since the 3429104470Siwasakicompiler requires elements of the Core Subsystem, this label 3430104470Siwasakisynchronizes everything. 3431102550Siwasaki 3432102550Siwasaki------------------------------------------ 3433102550SiwasakiSummary of changes for this label: 12_08_00 3434102550Siwasaki 3435102550Siwasaki 3436114237SnjlFixed a problem where named references within the ASL definition 3437114237Snjlof both OperationRegions and CreateXXXFields did not work 3438114237Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 3439114237Snjlinitialization of the region/field. This is similar (but not 3440114237Snjlrelated internally) to the problem that was fixed in the last 3441114237Snjllabel. 3442114237Snjl 3443102550SiwasakiImplemented both 32-bit and 64-bit support for the BCD ASL 3444102550Siwasakifunctions ToBCD and FromBCD. 3445102550Siwasaki 3446102550SiwasakiUpdated all legal headers to include "2000" in the copyright 3447102550Siwasakiyears. 3448102550Siwasaki 3449102550Siwasaki ------------------------------------------ 3450102550SiwasakiSummary of changes for this label: 12_01_00 3451102550Siwasaki 3452102550SiwasakiFixed a problem where method invocations within the ASL 3453114237Snjldefinition of both OperationRegions and CreateXXXFields did not 3454114237Snjlwork properly. The symptom was an AE_AML_OPERAND_TYPE during 3455114237Snjlinitialization of the region/field: 3456102550Siwasaki 3457114237Snjl nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments 3458114237Snjl[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s) 3459114237Snjl(0x3005) 3460102550Siwasaki 3461102550SiwasakiFixed a problem where operators with more than one nested 3462104470Siwasakisubexpression would fail. The symptoms were varied, by mostly 3463114237SnjlAE_AML_OPERAND_TYPE errors. This was actually a rather serious 3464114237Snjlproblem that has gone unnoticed until now. 3465102550Siwasaki 3466102550Siwasaki Subtract (Add (1,2), Multiply (3,4)) 3467102550Siwasaki 3468114237SnjlFixed a problem where AcpiGetHandle didn't quite get fixed in the 3469114237Snjlprevious build (The prefix part of a relative path was handled 3470114237Snjlincorrectly). 3471102550Siwasaki 3472114237SnjlFixed a problem where Operation Region initialization failed if 3473114237Snjlthe operation region name was a "namepath" instead of a simple 3474114237Snjl"nameseg". Symptom was an AE_NO_OPERAND error. 3475102550Siwasaki 3476114237SnjlFixed a problem where an assignment to a local variable via the 3477114237Snjlindirect RefOf mechanism only worked for the first such 3478102550Siwasakiassignment. Subsequent assignments were ignored. 3479102550Siwasaki 3480102550Siwasaki ------------------------------------------ 3481102550SiwasakiSummary of changes for this label: 11_15_00 3482102550Siwasaki 3483104470SiwasakiACPI 2.0 table support with backwards support for ACPI 1.0 and 3484104470Siwasakithe 0.71 extensions. Note: although we can read ACPI 2.0 BIOS 3485104470Siwasakitables, the AML interpreter does NOT have support for the new 3486104470Siwasaki2.0 ASL grammar terms at this time. 3487102550Siwasaki 3488104470SiwasakiAll ACPI hardware access is via the GAS structures in the ACPI 3489104470Siwasaki2.0 FADT. 3490102550Siwasaki 3491104470SiwasakiAll physical memory addresses across all platforms are now 64 3492104470Siwasakibits wide. Logical address width remains dependent on the 3493102550Siwasakiplatform (i.e., "void *"). 3494102550Siwasaki 3495114237SnjlAcpiOsMapMemory interface changed to a 64-bit physical address. 3496102550Siwasaki 3497114237SnjlThe AML interpreter integer size is now 64 bits, as per the ACPI 3498114237Snjl2.0 specification. 3499102550Siwasaki 3500104470SiwasakiFor backwards compatibility with ACPI 1.0, ACPI tables with a 3501104470Siwasakirevision number less than 2 use 32-bit integers only. 3502102550Siwasaki 3503114237SnjlFixed a problem where the evaluation of OpRegion operands did not 3504114237Snjlalways resolve them to numbers properly. 3505102550Siwasaki 3506102550Siwasaki------------------------------------------ 3507102550SiwasakiSummary of changes for this label: 10_20_00 3508102550Siwasaki 3509114237SnjlFix for CBN_._STA issue. This fix will allow correct access to 3510114237SnjlCBN_ OpRegions when the _STA returns 0x8. 3511102550Siwasaki 3512104470SiwasakiSupport to convert ACPI constants (Ones, Zeros, One) to actual 3513104470Siwasakivalues before a package object is returned 3514102550Siwasaki 3515104470SiwasakiFix for method call as predicate to if/while construct causing 3516104470Siwasakiincorrect if/while behavior 3517102550Siwasaki 3518114237SnjlFix for Else block package lengths sometimes calculated wrong (if 3519114237Snjlblock > 63 bytes) 3520102550Siwasaki 3521102550SiwasakiFix for Processor object length field, was always zero 3522102550Siwasaki 3523102550SiwasakiTable load abort if FACP sanity check fails 3524102550Siwasaki 3525102550SiwasakiFix for problem with Scope(name) if name already exists 3526102550Siwasaki 3527102550SiwasakiWarning emitted if a named object referenced cannot be found 3528102550Siwasaki(resolved) during method execution. 3529102550Siwasaki 3530102550Siwasaki 3531102550Siwasaki 3532102550Siwasaki 3533102550Siwasaki 3534102550Siwasaki------------------------------------------ 3535102550SiwasakiSummary of changes for this label: 9_29_00 3536102550Siwasaki 3537114237SnjlNew table initialization interfaces: AcpiInitializeSubsystem no 3538114237Snjllonger has any parameters AcpiFindRootPointer - Find the RSDP (if 3539114237Snjlnecessary) AcpiLoadTables (RSDP) - load all tables found at RSDP- 3540114237Snjl>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by 3541114237SnjlAcpiLoadTables 3542102550Siwasaki 3543104470SiwasakiNote: These interface changes require changes to all existing 3544104470SiwasakiOSDs 3545102550Siwasaki 3546114237SnjlThe PCI_Config default address space handler is always installed 3547114237Snjlat the root namespace object. 3548102550Siwasaki 3549102550Siwasaki------------------------------------------- 3550102550SiwasakiSummary of changes for this label: 09_15_00 3551102550Siwasaki 3552102550SiwasakiThe new initialization architecture is implemented. New 3553114237Snjlinterfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize) 3554114237SnjlAcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace 3555114237Snjl(Namespace is automatically loaded when a table is loaded) 3556102550Siwasaki 3557104470SiwasakiThe ACPI_OPERAND_OBJECT has been optimized to shrink its size 3558104470Siwasakifrom 52 bytes to 32 bytes. There is usually one of these for 3559104470Siwasakievery namespace object, so the memory savings is significant. 3560102550Siwasaki 3561114237SnjlImplemented just-in-time evaluation of the CreateField operators. 3562102550Siwasaki 3563102550SiwasakiBug fixes for IA-64 support have been integrated. 3564102550Siwasaki 3565102550SiwasakiAdditional code review comments have been implemented 3566102550Siwasaki 3567104470SiwasakiThe so-called "third pass parse" has been replaced by a final 3568104470Siwasakiwalk through the namespace to initialize all operation regions 3569104470Siwasaki(address spaces) and fields that have not yet been initialized 3570104470Siwasakiduring the execution of the various _INI and REG methods. 3571102550Siwasaki 3572102550SiwasakiNew file - namespace/nsinit.c 3573102550Siwasaki 3574102550Siwasaki------------------------------------------- 3575102550SiwasakiSummary of changes for this label: 09_01_00 3576102550Siwasaki 3577104470SiwasakiNamespace manager data structures have been reworked to change 3578104470Siwasakithe primary object from a table to a single object. This has 3579104470Siwasakiresulted in dynamic memory savings of 3X within the namespace 3580104470Siwasakiand 2X overall in the ACPI CA subsystem. 3581102550Siwasaki 3582102550SiwasakiFixed problem where the call to AcpiEvFindPciRootBuses was 3583102550Siwasakiinadvertently left commented out. 3584102550Siwasaki 3585114237SnjlReduced the warning count when generating the source with the GCC 3586114237Snjlcompiler. 3587102550Siwasaki 3588102550SiwasakiRevision numbers added to each module header showing the 3589104470SiwasakiSourceSafe version of the file. Please refer to this version 3590114237Snjlnumber when giving us feedback or comments on individual modules. 3591102550Siwasaki 3592114237SnjlThe main object types within the subsystem have been renamed to 3593114237Snjlclarify their purpose: 3594102550Siwasaki 3595102550SiwasakiACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT 3596102550SiwasakiACPI_GENERIC_OP -> ACPI_PARSE_OBJECT 3597102550SiwasakiACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE 3598102550Siwasaki 3599114237SnjlNOTE: no changes to the initialization sequence are included in 3600114237Snjlthis label. 3601102550Siwasaki 3602102550Siwasaki------------------------------------------- 3603102550SiwasakiSummary of changes for this label: 08_23_00 3604102550Siwasaki 3605102550SiwasakiFixed problem where TerminateControlMethod was being called 3606102550Siwasakimultiple times per method 3607102550Siwasaki 3608114237SnjlFixed debugger problem where single stepping caused a semaphore 3609114237Snjlto be oversignalled 3610102550Siwasaki 3611104470SiwasakiImproved performance through additional parse object caching - 3612104470Siwasakiadded ACPI_EXTENDED_OP type 3613102550Siwasaki 3614102550Siwasaki------------------------------------------- 3615102550SiwasakiSummary of changes for this label: 08_10_00 3616102550Siwasaki 3617102550SiwasakiParser/Interpreter integration: Eliminated the creation of 3618102550Siwasakicomplete parse trees for ACPI tables and control methods. 3619114237SnjlInstead, parse subtrees are created and then deleted as soon as 3620114237Snjlthey are processed (Either entered into the namespace or 3621104470Siwasakiexecuted by the interpreter). This reduces the use of dynamic 3622104470Siwasakikernel memory significantly. (about 10X) 3623102550Siwasaki 3624114237SnjlException codes broken into classes and renumbered. Be sure to 3625114237Snjlrecompile all code that includes acexcep.h. Hopefully we won't 3626114237Snjlhave to renumber the codes again now that they are split into 3627114237Snjlclasses (environment, programmer, AML code, ACPI table, and 3628114237Snjlinternal). 3629102550Siwasaki 3630104470SiwasakiFixed some additional alignment issues in the Resource Manager 3631104470Siwasakisubcomponent 3632102550Siwasaki 3633114237SnjlImplemented semaphore tracking in the AcpiExec utility, and fixed 3634114237Snjlseveral places where mutexes/semaphores were being unlocked 3635114237Snjlwithout a corresponding lock operation. There are no known 3636114237Snjlsemaphore or mutex "leaks" at this time. 3637102550Siwasaki 3638114237SnjlFixed the case where an ASL Return operator is used to return an 3639114237Snjlunnamed package. 3640102550Siwasaki 3641102550Siwasaki------------------------------------------- 3642102550SiwasakiSummary of changes for this label: 07_28_00 3643102550Siwasaki 3644102550SiwasakiFixed a problem with the way addresses were calculated in 3645114237SnjlAcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem 3646114237Snjlmanifested itself when a Field was created with WordAccess or 3647114237SnjlDwordAccess, but the field unit defined within the Field was 3648114237Snjlless than a Word or Dword. 3649102550Siwasaki 3650102550SiwasakiFixed a problem in AmlDumpOperands() module's loop to pull 3651104470Siwasakioperands off of the operand stack to display information. The 3652114237Snjlproblem manifested itself as a TLB error on 64-bit systems when 3653114237Snjlaccessing an operand stack with two or more operands. 3654102550Siwasaki 3655114237SnjlFixed a problem with the PCI configuration space handlers where 3656114237Snjlcontext was getting confused between accesses. This required a 3657114237Snjlchange to the generic address space handler and address space 3658114237Snjlsetup definitions. Handlers now get both a global handler 3659114237Snjlcontext (this is the one passed in by the user when executing 3660114237SnjlAcpiInstallAddressSpaceHandler() and a specific region context 3661114237Snjlthat is unique to each region (For example, the _ADR, _SEG and 3662114237Snjl_BBN values associated with a specific region). The generic 3663114237Snjlfunction definitions have changed to the following: 3664102550Siwasaki 3665114237Snjltypedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function, 3666114237SnjlUINT32 Address, UINT32 BitWidth, UINT32 *Value, void 3667104470Siwasaki*HandlerContext, // This used to be void *Context void 3668102550Siwasaki*RegionContext); // This is an additional parameter 3669102550Siwasaki 3670102550Siwasakitypedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE 3671102550SiwasakiRegionHandle, UINT32 Function, void *HandlerContext, void 3672102550Siwasaki**RegionContext); // This used to be **ReturnContext 3673102550Siwasaki 3674102550Siwasaki------------------------------------------- 3675102550SiwasakiSummary of changes for this label: 07_21_00 3676102550Siwasaki 3677102550SiwasakiMajor file consolidation and rename. All files within the 3678102550Siwasakiinterpreter have been renamed as well as most header files. 3679114237SnjlThis was done to prevent collisions with existing files in the 3680114237Snjlhost OSs -- filenames such as "config.h" and "global.h" seem to 3681114237Snjlbe quite common. The VC project files have been updated. All 3682114237Snjlmakefiles will require modification. 3683102550Siwasaki 3684114237SnjlThe parser/interpreter integration continues in Phase 5 with the 3685114237Snjlimplementation of a complete 2-pass parse (the AML is parsed 3686114237Snjltwice) for each table; This avoids the construction of a huge 3687114237Snjlparse tree and therefore reduces the amount of dynamic memory 3688114237Snjlrequired by the subsystem. Greater use of the parse object cache 3689114237Snjlmeans that performance is unaffected. 3690102550Siwasaki 3691102550SiwasakiMany comments from the two code reviews have been rolled in. 3692102550Siwasaki 3693102550SiwasakiThe 64-bit alignment support is complete. 3694102550Siwasaki 3695102550Siwasaki------------------------------------------- 3696102550SiwasakiSummary of changes for this label: 06_30_00 3697102550Siwasaki 3698114237SnjlWith a nod and a tip of the hat to the technology of yesteryear, 3699114237Snjlwe've added support in the source code for 80 column output 3700114237Snjldevices. The code is now mostly constrained to 80 columns or 3701114237Snjlless to support environments and editors that 1) cannot display 3702114237Snjlor print more than 80 characters on a single line, and 2) cannot 3703114237Snjldisable line wrapping. 3704102550Siwasaki 3705104470SiwasakiA major restructuring of the namespace data structure has been 3706104470Siwasakicompleted. The result is 1) cleaner and more 3707114237Snjlunderstandable/maintainable code, and 2) a significant reduction 3708114237Snjlin the dynamic memory requirement for each named ACPI object 3709114237Snjl(almost half). 3710102550Siwasaki 3711102550Siwasaki------------------------------------------- 3712102550SiwasakiSummary of changes for this label: 06_23_00 3713102550Siwasaki 3714114237SnjlLinux support has been added. In order to obtain approval to get 3715114237Snjlthe ACPI CA subsystem into the Linux kernel, we've had to make 3716114237Snjlquite a few changes to the base subsystem that will affect all 3717114237Snjlusers (all the changes are generic and OS- independent). The 3718114237Snjleffects of these global changes have been somewhat far reaching. 3719114237SnjlFiles have been merged and/or renamed and interfaces have been 3720114237Snjlrenamed. The major changes are described below. 3721102550Siwasaki 3722102550SiwasakiOsd* interfaces renamed to AcpiOs* to eliminate namespace 3723102550Siwasakipollution/confusion within our target kernels. All OSD 3724114237Snjlinterfaces must be modified to match the new naming convention. 3725102550Siwasaki 3726102550SiwasakiFiles merged across the subsystem. A number of the smaller 3727102550Siwasakisource and header files have been merged to reduce the file 3728114237Snjlcount and increase the density of the existing files. There are 3729114237Snjltoo many to list here. In general, makefiles that call out 3730114237Snjlindividual files will require rebuilding. 3731102550Siwasaki 3732104470SiwasakiInterpreter files renamed. All interpreter files now have the 3733104470Siwasakiprefix am* instead of ie* and is*. 3734102550Siwasaki 3735104470SiwasakiHeader files renamed: The acapi.h file is now acpixf.h. The 3736114237Snjlacpiosd.h file is now acpiosxf.h. We are removing references to 3737114237Snjlthe acronym "API" since it is somewhat windowsy. The new name is 3738114237Snjl"external interface" or xface or xf in the filenames.j 3739102550Siwasaki 3740102550Siwasaki 3741114237SnjlAll manifest constants have been forced to upper case (some were 3742114237Snjlmixed case.) Also, the string "ACPI_" has been prepended to 3743114237Snjlmany (not all) of the constants, typedefs, and structs. 3744102550Siwasaki 3745102550SiwasakiThe globals "DebugLevel" and "DebugLayer" have been renamed 3746102550Siwasaki"AcpiDbgLevel" and "AcpiDbgLayer" respectively. 3747102550Siwasaki 3748102550SiwasakiAll other globals within the subsystem are now prefixed with 3749102550Siwasaki"AcpiGbl_" Internal procedures within the subsystem are now 3750114237Snjlprefixed with "Acpi" (with only a few exceptions). The original 3751114237Snjltwo-letter abbreviation for the subcomponent remains after 3752114237Snjl"Acpi" - for example, CmCallocate became AcpiCmCallocate. 3753102550Siwasaki 3754102550SiwasakiAdded a source code translation/conversion utility. Used to 3755114237Snjlgenerate the Linux source code, it can be modified to generate 3756114237Snjlother types of source as well. Can also be used to cleanup 3757114237Snjlexisting source by removing extraneous spaces and blank lines. 3758114237SnjlFound in tools/acpisrc/* 3759102550Siwasaki 3760102550SiwasakiOsdUnMapMemory was renamed to OsdUnmapMemory and then 3761102550SiwasakiAcpiOsUnmapMemory. (UnMap became Unmap). 3762102550Siwasaki 3763114237SnjlA "MaxUnits" parameter has been added to AcpiOsCreateSemaphore. 3764114237SnjlWhen set to one, this indicates that the caller wants to use the 3765114237Snjlsemaphore as a mutex, not a counting semaphore. ACPI CA uses 3766114237Snjlboth types. However, implementers of this call may want to use 3767114237Snjldifferent OS primitives depending on the type of semaphore 3768114237Snjlrequested. For example, some operating systems provide separate 3769114237Snjl"mutex" and "semaphore" interfaces - where the mutex interface 3770114237Snjlis much faster because it doesn't have all the overhead of a 3771114237Snjlfull semaphore implementation. 3772102550Siwasaki 3773104470SiwasakiFixed a deadlock problem where a method that accesses the PCI 3774114237Snjladdress space can block forever if it is the first access to the 3775114237Snjlspace. 3776102550Siwasaki 3777102550Siwasaki------------------------------------------- 3778102550SiwasakiSummary of changes for this label: 06_02_00 3779102550Siwasaki 3780102550SiwasakiSupport for environments that cannot handle unaligned data 3781114237Snjlaccesses (e.g. firmware and OS environments devoid of alignment 3782114237Snjlhandler technology namely SAL/EFI and the IA-64 Linux kernel) 3783114237Snjlhas been added (via configurable macros) in these three areas: - 3784114237SnjlTransfer of data from the raw AML byte stream is done via byte 3785114237Snjlmoves instead of word/dword/qword moves. - External objects 3786114237Snjlare aligned within the user buffer, including package elements 3787114237Snjl(sub-objects). - Conversion of name strings to UINT32 Acpi Names 3788114237Snjlis now done byte-wise. 3789102550Siwasaki 3790102550SiwasakiThe Store operator was modified to mimic Microsoft's 3791102550Siwasakiimplementation when storing to a Buffer Field. 3792102550Siwasaki 3793102550SiwasakiAdded a check of the BM_STS bit before entering C3. 3794102550Siwasaki 3795114237SnjlThe methods subdirectory has been obsoleted and removed. A new 3796114237Snjlfile, cmeval.c subsumes the functionality. 3797102550Siwasaki 3798102550SiwasakiA 16-bit (DOS) version of AcpiExec has been developed. The 3799102550Siwasakimakefile is under the acpiexec directory. 3800