changes.txt revision 129684
1117521Snjl---------------------------------------- 2129684Snjl14 May 2004. Summary of changes for version 20040514: 3129684Snjl 4129684Snjl1) ACPI CA Core Subsystem: 5129684Snjl 6129684SnjlFixed a problem where hardware GPE enable bits sometimes not set 7129684Snjlproperly during and after GPE method execution. Result of 04/27 8129684Snjlchanges. 9129684Snjl 10129684SnjlRemoved extra "clear all GPEs" when sleeping/waking. 11129684Snjl 12129684SnjlRemoved AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the 13129684Snjlsingle AcpiHwWriteGpeEnableReg. Changed a couple of calls to the 14129684Snjlfunctions above to the new AcpiEv* calls as appropriate. 15129684Snjl 16129684SnjlACPI_OS_NAME was removed from the OS-specific headers. The 17129684Snjldefault name is now "Microsoft Windows NT" for maximum 18129684Snjlcompatibility. However this can be changed by modifying the 19129684Snjlacconfig.h file. 20129684Snjl 21129684SnjlAllow a single invocation of AcpiInstallNotifyHandler for a 22129684Snjlhandler that traps both types of notifies (System, Device). Use 23129684SnjlACPI_ALL_NOTIFY flag. 24129684Snjl 25129684SnjlRun _INI methods on ThermalZone objects. This is against the 26129684SnjlACPI specification, but there is apparently ASL code in the field 27129684Snjlthat has these _INI methods, and apparently "other" AML 28129684Snjlinterpreters execute them. 29129684Snjl 30129684SnjlPerformed a full 16/32/64 bit lint that resulted in some small 31129684Snjlchanges. 32129684Snjl 33129684SnjlAdded a sleep simulation command to the AML debugger to test 34129684Snjlsleep code. 35129684Snjl 36129684SnjlCode and Data Size: Current and previous core subsystem library 37129684Snjlsizes are shown below. These are the code and data sizes for the 38129684Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 39129684Snjlthese values do not include any ACPI driver or OSPM code. The 40129684Snjldebug version of the code includes the debug output trace 41129684Snjlmechanism and has a much larger code and data size. Note that 42129684Snjlthese values will vary depending on the efficiency of the 43129684Snjlcompiler and the compiler options used during generation. 44129684Snjl 45129684Snjl Previous Release: 46129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 47129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 48129684Snjl Current Release: 49129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 50129684Snjl Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 51129684Snjl 52129684Snjl---------------------------------------- 53129684Snjl27 April 2004. Summary of changes for version 20040427: 54129684Snjl 55129684Snjl1) ACPI CA Core Subsystem: 56129684Snjl 57129684SnjlCompleted a major overhaul of the GPE handling within ACPI CA. 58129684SnjlThere are now three types of GPEs: wake-only, runtime-only, and 59129684Snjlcombination wake/run. The only GPEs allowed to be combination 60129684Snjlwake/run are for button-style devices such as a control-method 61129684Snjlpower button, control-method sleep button, or a notebook lid 62129684Snjlswitch. GPEs that have an _Lxx or _Exx method and are not 63129684Snjlreferenced by any _PRW methods are marked for "runtime" and 64129684Snjlhardware enabled. Any GPE that is referenced by a _PRW method is 65129684Snjlmarked for "wake" (and disabled at runtime). However, at sleep 66129684Snjltime, only those GPEs that have been specifically enabled for 67129684Snjlwake via the AcpiEnableGpe interface will actually be hardware 68129684Snjlenabled. 69129684Snjl 70129684SnjlA new external interface has been added, AcpiSetGpeType(), that 71129684Snjlis meant to be used by device drivers to force a GPE to a 72129684Snjlparticular type. It will be especially useful for the drivers 73129684Snjlfor the button devices mentioned above. 74129684Snjl 75129684SnjlCompleted restructuring of the ACPI CA initialization sequence so 76129684Snjlthat default operation region handlers are installed before GPEs 77129684Snjlare initialized and the _PRW methods are executed. This will 78129684Snjlprevent errors when the _PRW methods attempt to access system 79129684Snjlmemory or I/O space. 80129684Snjl 81129684SnjlGPE enable/disable no longer reads the GPE enable register. We 82129684Snjlnow keep the enable info for runtime and wake separate and in the 83129684SnjlGPE_EVENT_INFO. We thus no longer depend on the hardware to 84129684Snjlmaintain these bits. 85129684Snjl 86129684SnjlAlways clear the wake status and fixed/GPE status bits before 87129684Snjlsleep, even for state S5. 88129684Snjl 89129684SnjlImproved the AML debugger output for displaying the GPE blocks 90129684Snjland their current status. 91129684Snjl 92129684SnjlAdded new strings for the _OSI method, of the form "Windows 2001 93129684SnjlSPx" where x = 0,1,2,3,4. 94129684Snjl 95129684SnjlFixed a problem where the physical address was incorrectly 96129684Snjlcalculated when the Load() operator was used to directly load 97129684Snjlfrom an Operation Region (vs. loading from a Field object.) Also 98129684Snjladded check for minimum table length for this case. 99129684Snjl 100129684SnjlFix for multiple mutex acquisition. Restore original thread 101129684SnjlSyncLevel on mutex release. 102129684Snjl 103129684SnjlAdded ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for 104129684Snjlconsistency with the other fields returned. 105129684Snjl 106129684SnjlShrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one 107129684Snjlsuch structure for each GPE in the system, so the size of this 108129684Snjlstructure is important. 109129684Snjl 110129684SnjlCPU stack requirement reduction: Cleaned up the method execution 111129684Snjland object evaluation paths so that now a parameter structure is 112129684Snjlpassed, instead of copying the various method parameters over and 113129684Snjlover again. 114129684Snjl 115129684SnjlIn evregion.c: Correctly exit and reenter the interpreter region 116129684Snjlif and only if dispatching an operation region request to a user- 117129684Snjlinstalled handler. Do not exit/reenter when dispatching to a 118129684Snjldefault handler (e.g., default system memory or I/O handlers) 119129684Snjl 120129684Snjl 121129684SnjlNotes for updating drivers for the new GPE support. The 122129684Snjlfollowing changes must be made to ACPI-related device drivers 123129684Snjlthat are attached to one or more GPEs: (This information will be 124129684Snjladded to the ACPI CA Programmer Reference.) 125129684Snjl 126129684Snjl1) AcpiInstallGpeHandler no longer automatically enables the GPE, 127129684Snjlyou must explicitly call AcpiEnableGpe. 128129684Snjl2) There is a new interface called AcpiSetGpeType. This should be 129129684Snjlcalled before enabling the GPE. Also, this interface will 130129684Snjlautomatically disable the GPE if it is currently enabled. 131129684Snjl3) AcpiEnableGpe no longer supports a GPE type flag. 132129684Snjl 133129684SnjlSpecific drivers that must be changed: 134129684Snjl1) EC driver: 135129684Snjl AcpiInstallGpeHandler (NULL, GpeNum, ACPI_GPE_EDGE_TRIGGERED, 136129684SnjlAeGpeHandler, NULL); 137129684Snjl AcpiSetGpeType (NULL, GpeNum, ACPI_GPE_TYPE_RUNTIME); 138129684Snjl AcpiEnableGpe (NULL, GpeNum, ACPI_NOT_ISR); 139129684Snjl 140129684Snjl2) Button Drivers (Power, Lid, Sleep): 141129684SnjlRun _PRW method under parent device 142129684SnjlIf _PRW exists: /* This is a control-method button */ 143129684Snjl Extract GPE number and possibly GpeDevice 144129684Snjl AcpiSetGpeType (GpeDevice, GpeNum, ACPI_GPE_TYPE_WAKE_RUN); 145129684Snjl AcpiEnableGpe (GpeDevice, GpeNum, ACPI_NOT_ISR); 146129684Snjl 147129684SnjlFor all other devices that have _PRWs, we automatically set the 148129684SnjlGPE type to ACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically 149129684Snjl(wake) enabled. This must be done on a selective basis, usually 150129684Snjlrequiring some kind of user app to allow the user to pick the 151129684Snjlwake devices. 152129684Snjl 153129684Snjl 154129684SnjlCode and Data Size: Current and previous core subsystem library 155129684Snjlsizes are shown below. These are the code and data sizes for the 156129684Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 157129684Snjlthese values do not include any ACPI driver or OSPM code. The 158129684Snjldebug version of the code includes the debug output trace 159129684Snjlmechanism and has a much larger code and data size. Note that 160129684Snjlthese values will vary depending on the efficiency of the 161129684Snjlcompiler and the compiler options used during generation. 162129684Snjl 163129684Snjl Previous Release: 164129684Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 165129684Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 166129684Snjl Current Release: 167129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 168129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 169129684Snjl 170129684Snjl 171129684Snjl 172129684Snjl---------------------------------------- 173128212Snjl02 April 2004. Summary of changes for version 20040402: 174128212Snjl 175128212Snjl1) ACPI CA Core Subsystem: 176128212Snjl 177128212SnjlFixed an interpreter problem where an indirect store through an 178128212SnjlArgX parameter was incorrectly applying the "implicit conversion 179128212Snjlrules" during the store. From the ACPI specification: "If the 180128212Snjltarget is a method local or argument (LocalX or ArgX), no 181128212Snjlconversion is performed and the result is stored directly to the 182128212Snjltarget". The new behavior is to disable implicit conversion 183128212Snjlduring ALL stores to an ArgX. 184128212Snjl 185128212SnjlChanged the behavior of the _PRW method scan to ignore any and 186128212Snjlall errors returned by a given _PRW. This prevents the scan from 187128212Snjlaborting from the failure of any single _PRW. 188128212Snjl 189128212SnjlMoved the runtime configuration parameters from the global init 190128212Snjlprocedure to static variables in acglobal.h. This will allow the 191128212Snjlhost to override the default values easily. 192128212Snjl 193128212SnjlCode and Data Size: Current and previous core subsystem library 194128212Snjlsizes are shown below. These are the code and data sizes for the 195128212Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 196128212Snjlthese values do not include any ACPI driver or OSPM code. The 197128212Snjldebug version of the code includes the debug output trace 198128212Snjlmechanism and has a much larger code and data size. Note that 199128212Snjlthese values will vary depending on the efficiency of the 200128212Snjlcompiler and the compiler options used during generation. 201128212Snjl 202128212Snjl Previous Release: 203128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 204128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 205128212Snjl Current Release: 206128212Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 207128212Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 208128212Snjl 209128212Snjl 210128212Snjl2) iASL Compiler/Disassembler: 211128212Snjl 212128212SnjliASL now fully disassembles SSDTs. However, External() 213128212Snjlstatements are not generated automatically for unresolved symbols 214128212Snjlat this time. This is a planned feature for future 215128212Snjlimplementation. 216128212Snjl 217128212SnjlFixed a scoping problem in the disassembler that occurs when the 218128212Snjltype of the target of a Scope() operator is overridden. This 219128212Snjlproblem caused an incorrectly nested internal namespace to be 220128212Snjlconstructed. 221128212Snjl 222128212SnjlAny warnings or errors that are emitted during disassembly are 223128212Snjlnow commented out automatically so that the resulting file can be 224128212Snjlrecompiled without any hand editing. 225128212Snjl 226128212Snjl---------------------------------------- 227128212Snjl26 March 2004. Summary of changes for version 20040326: 228128212Snjl 229128212Snjl1) ACPI CA Core Subsystem: 230128212Snjl 231128212SnjlImplemented support for "wake" GPEs via interaction between GPEs 232128212Snjland the _PRW methods. Every GPE that is pointed to by one or 233128212Snjlmore _PRWs is identified as a WAKE GPE and by default will no 234128212Snjllonger be enabled at runtime. Previously, we were blindly 235128212Snjlenabling all GPEs with a corresponding _Lxx or _Exx method - but 236128212Snjlmost of these turn out to be WAKE GPEs anyway. We believe this 237128212Snjlhas been the cause of thousands of "spurious" GPEs on some 238128212Snjlsystems. 239128212Snjl 240128212SnjlThis new GPE behavior is can be reverted to the original behavior 241128212Snjl(enable ALL GPEs at runtime) via a runtime flag. 242128212Snjl 243128212SnjlFixed a problem where aliased control methods could not access 244128212Snjlobjects properly. The proper scope within the namespace was not 245128212Snjlinitialized (transferred to the target of the aliased method) 246128212Snjlbefore executing the target method. 247128212Snjl 248128212SnjlFixed a potential race condition on internal object deletion on 249128212Snjlthe return object in AcpiEvaluateObject. 250128212Snjl 251128212SnjlIntegrated a fix for resource descriptors where both _MEM and 252128212Snjl_MTP were being extracted instead of just _MEM. (i.e. bitmask 253128212Snjlwas incorrectly too wide, 0x0F instead of 0x03.) 254128212Snjl 255128212SnjlAdded a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName, 256128212Snjlpreventing a fault in some cases. 257128212Snjl 258128212SnjlUpdated Notify() values for debug statements in evmisc.c 259128212Snjl 260128212SnjlReturn proper status from AcpiUtMutexInitialize, not just simply 261128212SnjlAE_OK. 262128212Snjl 263128212SnjlCode and Data Size: Current and previous core subsystem library 264128212Snjlsizes are shown below. These are the code and data sizes for the 265128212Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 266128212Snjlthese values do not include any ACPI driver or OSPM code. The 267128212Snjldebug version of the code includes the debug output trace 268128212Snjlmechanism and has a much larger code and data size. Note that 269128212Snjlthese values will vary depending on the efficiency of the 270128212Snjlcompiler and the compiler options used during generation. 271128212Snjl 272128212Snjl Previous Release: 273128212Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 274128212Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 275128212Snjl Current Release: 276128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 277128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 278128212Snjl 279128212Snjl---------------------------------------- 280127175Snjl11 March 2004. Summary of changes for version 20040311: 281127175Snjl 282127175Snjl1) ACPI CA Core Subsystem: 283127175Snjl 284127175SnjlFixed a problem where errors occurring during the parse phase of 285127175Snjlcontrol method execution did not abort cleanly. For example, 286127175Snjlobjects created and installed in the namespace were not deleted. 287127175SnjlThis caused all subsequent invocations of the method to return 288127175Snjlthe AE_ALREADY_EXISTS exception. 289127175Snjl 290127175SnjlImplemented a mechanism to force a control method to "Serialized" 291127175Snjlexecution if the method attempts to create namespace objects. 292127175Snjl(The root of the AE_ALREADY_EXISTS problem.) 293127175Snjl 294127175SnjlImplemented support for the predefined _OSI "internal" control 295127175Snjlmethod. Initial supported strings are "Linux", "Windows 2000", 296127175Snjl"Windows 2001", and "Windows 2001.1", and can be easily upgraded 297127175Snjlfor new strings as necessary. This feature will allow "other" 298127175Snjloperating systems to execute the fully tested, "Windows" code 299127175Snjlpath through the ASL code 300127175Snjl 301127175SnjlGlobal Lock Support: Now allows multiple acquires and releases 302127175Snjlwith any internal thread. Removed concept of "owning thread" for 303127175Snjlthis special mutex. 304127175Snjl 305127175SnjlFixed two functions that were inappropriately declaring large 306127175Snjlobjects on the CPU stack: PsParseLoop, NsEvaluateRelative. 307127175SnjlReduces the stack usage during method execution considerably. 308127175Snjl 309127175SnjlFixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where 310127175Snjlthe S4Bios_f field was incorrectly defined as UINT32 instead of 311127175SnjlUINT32_BIT. 312127175Snjl 313127175SnjlFixed a problem where AcpiEvGpeDetect would fault if there were 314127175Snjlno GPEs defined on the machine. 315127175Snjl 316127175SnjlImplemented two runtime options: One to force all control method 317127175Snjlexecution to "Serialized" to mimic Windows behavior, another to 318127175Snjldisable _OSI support if it causes problems on a given machine. 319127175Snjl 320127175SnjlCode and Data Size: Current and previous core subsystem library 321127175Snjlsizes are shown below. These are the code and data sizes for the 322127175Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 323127175Snjlthese values do not include any ACPI driver or OSPM code. The 324127175Snjldebug version of the code includes the debug output trace 325127175Snjlmechanism and has a much larger code and data size. Note that 326127175Snjlthese values will vary depending on the efficiency of the 327127175Snjlcompiler and the compiler options used during generation. 328127175Snjl 329127175Snjl Previous Release: 330127175Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 331127175Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 332127175Snjl Current Release: 333127175Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 334127175Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 335127175Snjl 336127175Snjl2) iASL Compiler/Disassembler: 337127175Snjl 338127175SnjlFixed an array size problem for FreeBSD that would cause the 339127175Snjlcompiler to fault. 340127175Snjl 341127175Snjl---------------------------------------- 342126372Snjl20 February 2004. Summary of changes for version 20040220: 343126372Snjl 344126372Snjl1) ACPI CA Core Subsystem: 345126372Snjl 346126372SnjlImplemented execution of _SxD methods for Device objects in the 347126372SnjlGetObjectInfo interface. 348126372Snjl 349126372SnjlFixed calls to _SST method to pass the correct arguments. 350126372Snjl 351126372SnjlAdded a call to _SST on wake to restore to "working" state. 352126372Snjl 353126372SnjlCheck for End-Of-Buffer failure case in the WalkResources 354126372Snjlinterface. 355126372Snjl 356126372SnjlIntegrated fix for 64-bit alignment issue in acglobal.h by moving 357126372Snjltwo structures to the beginning of the file. 358126372Snjl 359126372SnjlAfter wake, clear GPE status register(s) before enabling GPEs. 360126372Snjl 361126372SnjlAfter wake, clear/enable power button. (Perhaps we should 362126372Snjlclear/enable all fixed events upon wake.) 363126372Snjl 364126372SnjlFixed a couple of possible memory leaks in the Namespace manager. 365126372Snjl 366126372SnjlIntegrated latest acnetbsd.h file. 367126372Snjl 368126372Snjl---------------------------------------- 369126372Snjl11 February 2004. Summary of changes for version 20040211: 370126372Snjl 371126372Snjl1) ACPI CA Core Subsystem: 372126372Snjl 373126372SnjlCompleted investigation and implementation of the call-by- 374126372Snjlreference mechanism for control method arguments. 375126372Snjl 376126372SnjlFixed a problem where a store of an object into an indexed 377126372Snjlpackage could fail if the store occurs within a different method 378126372Snjlthan the method that created the package. 379126372Snjl 380126372SnjlFixed a problem where the ToDecimal operator could return 381126372Snjlincorrect results. 382126372Snjl 383126372SnjlFixed a problem where the CopyObject operator could fail on some 384126372Snjlof the more obscure objects (e.g., Reference objects.) 385126372Snjl 386126372SnjlImproved the output of the Debug object to display buffer, 387126372Snjlpackage, and index objects. 388126372Snjl 389126372SnjlFixed a problem where constructs of the form "RefOf (ArgX)" did 390126372Snjlnot return the expected result. 391126372Snjl 392126372SnjlAdded permanent ACPI_REPORT_ERROR macros for all instances of the 393126372SnjlACPI_AML_INTERNAL exception. 394126372Snjl 395126372SnjlIntegrated latest version of acfreebsd.h 396126372Snjl 397126372Snjl---------------------------------------- 398126372Snjl16 January 2004. Summary of changes for version 20040116: 399126372Snjl 400126372SnjlThe purpose of this release is primarily to update the copyright 401126372Snjlyears in each module, thus causing a huge number of diffs. There 402126372Snjlare a few small functional changes, however. 403126372Snjl 404126372Snjl1) ACPI CA Core Subsystem: 405126372Snjl 406126372SnjlImproved error messages when there is a problem finding one or 407126372Snjlmore of the required base ACPI tables 408126372Snjl 409126372SnjlReintroduced the definition of APIC_HEADER in actbl.h 410126372Snjl 411126372SnjlChanged definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h) 412126372Snjl 413126372SnjlRemoved extraneous reference to NewObj in dsmthdat.c 414126372Snjl 415126372Snjl2) iASL compiler 416126372Snjl 417126372SnjlFixed a problem introduced in December that disabled the correct 418126372Snjldisassembly of Resource Templates 419126372Snjl 420126372Snjl 421126372Snjl---------------------------------------- 422126372Snjl03 December 2003. Summary of changes for version 20031203: 423126372Snjl 424126372Snjl1) ACPI CA Core Subsystem: 425126372Snjl 426126372SnjlChanged the initialization of Operation Regions during subsystem 427126372Snjlinit to perform two entire walks of the ACPI namespace; The first 428126372Snjlto initialize the regions themselves, the second to execute the 429126372Snjl_REG methods. This fixed some interdependencies across _REG 430126372Snjlmethods found on some machines. 431126372Snjl 432126372SnjlFixed a problem where a Store(Local0, Local1) could simply update 433126372Snjlthe object reference count, and not create a new copy of the 434126372Snjlobject if the Local1 is uninitialized. 435126372Snjl 436126372SnjlImplemented support for the _SST reserved method during sleep 437126372Snjltransitions. 438126372Snjl 439126372SnjlImplemented support to clear the SLP_TYP and SLP_EN bits when 440126372Snjlwaking up, this is apparently required by some machines. 441126372Snjl 442126372SnjlWhen sleeping, clear the wake status only if SleepState is not 443126372SnjlS5. 444126372Snjl 445126372SnjlFixed a problem in AcpiRsExtendedIrqResource() where an incorrect 446126372Snjlpointer arithmetic advanced a string pointer too far. 447126372Snjl 448126372SnjlFixed a problem in AcpiTbGetTablePtr() where a garbage pointer 449126372Snjlcould be returned if the requested table has not been loaded. 450126372Snjl 451126372SnjlWithin the support for IRQ resources, restructured the handling 452126372Snjlof 453126372Snjlthe active and edge/level bits. 454126372Snjl 455126372SnjlFixed a few problems in AcpiPsxExecute() where memory could be 456126372Snjlleaked under certain error conditions. 457126372Snjl 458126372SnjlImproved error messages for the cases where the ACPI mode could 459126372Snjlnot be entered. 460126372Snjl 461126372SnjlCode and Data Size: Current and previous core subsystem library 462126372Snjlsizes are shown below. These are the code and data sizes for the 463126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 464126372Snjlthese values do not include any ACPI driver or OSPM code. The 465126372Snjldebug version of the code includes the debug output trace 466126372Snjlmechanism and has a much larger code and data size. Note that 467126372Snjlthese values will vary depending on the efficiency of the 468126372Snjlcompiler 469126372Snjland the compiler options used during generation. 470126372Snjl 471126372Snjl Previous Release (20031029): 472126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 473126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 474126372Snjl Current Release: 475126372Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 476126372Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 477126372Snjl 478126372Snjl2) iASL Compiler/Disassembler: 479126372Snjl 480126372SnjlImplemented a fix for the iASL disassembler where a bad index was 481126372Snjlgenerated. This was most noticeable on 64-bit platforms 482126372Snjl 483126372Snjl 484126372Snjl---------------------------------------- 485126372Snjl29 October 2003. Summary of changes for version 20031029: 486126372Snjl 487126372Snjl1) ACPI CA Core Subsystem: 488126372Snjl 489126372SnjlFixed a problem where a level-triggered GPE with an associated 490126372Snjl_Lxx control method was incorrectly cleared twice. 491126372Snjl 492126372SnjlFixed a problem with the Field support code where an access can 493126372Snjloccur beyond the end-of-region if the field is non-aligned but 494126372Snjlextends to the very end of the parent region (resulted in an 495126372SnjlAE_AML_REGION_LIMIT exception.) 496126372Snjl 497126372SnjlFixed a problem with ACPI Fixed Events where an RT Clock handler 498126372Snjlwould not get invoked on an RTC event. The RTC event bitmasks 499126372Snjlfor 500126372Snjlthe PM1 registers were not being initialized properly. 501126372Snjl 502126372SnjlImplemented support for executing _STA and _INI methods for 503126372SnjlProcessor objects. Although this is currently not part of the 504126372SnjlACPI specification, there is existing ASL code that depends on 505126372Snjlthe 506126372Snjlinit-time execution of these methods. 507126372Snjl 508126372SnjlImplemented and deployed a GetDescriptorName function to decode 509126372Snjlthe various types of internal descriptors. Guards against null 510126372Snjldescriptors during debug output also. 511126372Snjl 512126372SnjlImplemented and deployed a GetNodeName function to extract the 4- 513126372Snjlcharacter namespace node name. This function simplifies the 514126372Snjldebug 515126372Snjland error output, as well as guarding against null pointers 516126372Snjlduring 517126372Snjloutput. 518126372Snjl 519126372SnjlImplemented and deployed the ACPI_FORMAT_UINT64 helper macro to 520126372Snjlsimplify the debug and error output of 64-bit integers. This 521126372Snjlmacro replaces the HIDWORD and LODWORD macros for dumping these 522126372Snjlintegers. 523126372Snjl 524126372SnjlUpdated the implementation of the Stall() operator to only call 525126372SnjlAcpiOsStall(), and also return an error if the operand is larger 526126372Snjlthan 255. This preserves the required behavior of not 527126372Snjlrelinquishing the processor, as would happen if AcpiOsSleep() was 528126372Snjlcalled for "long stalls". 529126372Snjl 530126372SnjlConstructs of the form "Store(LocalX,LocalX)" where LocalX is not 531126372Snjlinitialized are now treated as NOOPs. 532126372Snjl 533126372SnjlCleaned up a handful of warnings during 64-bit generation. 534126372Snjl 535126372SnjlFixed a reported error where and incorrect GPE number was passed 536126372Snjlto the GPE dispatch handler. This value is only used for error 537126372Snjloutput, however. Used this opportunity to clean up and 538126372Snjlstreamline 539126372Snjlthe GPE dispatch code. 540126372Snjl 541126372SnjlCode and Data Size: Current and previous core subsystem library 542126372Snjlsizes are shown below. These are the code and data sizes for the 543126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 544126372Snjlthese values do not include any ACPI driver or OSPM code. The 545126372Snjldebug version of the code includes the debug output trace 546126372Snjlmechanism and has a much larger code and data size. Note that 547126372Snjlthese values will vary depending on the efficiency of the 548126372Snjlcompiler 549126372Snjland the compiler options used during generation. 550126372Snjl 551126372Snjl Previous Release (20031002): 552126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 553126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 554126372Snjl Current Release: 555126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 556126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 557126372Snjl 558126372Snjl 559126372Snjl2) iASL Compiler/Disassembler: 560126372Snjl 561126372SnjlUpdated the iASL compiler to return an error if the operand to 562126372Snjlthe 563126372SnjlStall() operator is larger than 255. 564126372Snjl 565126372Snjl 566126372Snjl---------------------------------------- 567126372Snjl02 October 2003. Summary of changes for version 20031002: 568126372Snjl 569126372Snjl 570126372Snjl1) ACPI CA Core Subsystem: 571126372Snjl 572126372SnjlFixed a problem with Index Fields where the index was not 573126372Snjlincremented for fields that require multiple writes to the 574126372Snjlindex/data registers (Fields that are wider than the data 575126372Snjlregister.) 576126372Snjl 577126372SnjlFixed a problem with all Field objects where a write could go 578126372Snjlbeyond the end-of-field if the field was larger than the access 579126372Snjlgranularity and therefore required multiple writes to complete 580126372Snjlthe 581126372Snjlrequest. An extra write beyond the end of the field could happen 582126372Snjlinadvertently. 583126372Snjl 584126372SnjlFixed a problem with Index Fields where a BUFFER_OVERFLOW error 585126372Snjlwould incorrectly be returned if the width of the Data Register 586126372Snjlwas larger than the specified field access width. 587126372Snjl 588126372SnjlCompleted fixes for LoadTable() and Unload() and verified their 589126372Snjloperation. Implemented full support for the "DdbHandle" object 590126372Snjlthroughout the ACPI CA subsystem. 591126372Snjl 592126372SnjlImplemented full support for the MADT and ECDT tables in the ACPI 593126372SnjlCA header files. Even though these tables are not directly 594126372Snjlconsumed by ACPI CA, the header definitions are useful for ACPI 595126372Snjldevice drivers. 596126372Snjl 597126372SnjlIntegrated resource descriptor fixes posted to the Linux ACPI 598126372Snjllist. This included checks for minimum descriptor length, and 599126372Snjlsupport for trailing NULL strings within descriptors that have 600126372Snjloptional string elements. 601126372Snjl 602126372SnjlCode and Data Size: Current and previous core subsystem library 603126372Snjlsizes are shown below. These are the code and data sizes for the 604126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 605126372Snjlthese values do not include any ACPI driver or OSPM code. The 606126372Snjldebug version of the code includes the debug output trace 607126372Snjlmechanism and has a much larger code and data size. Note that 608126372Snjlthese values will vary depending on the efficiency of the 609126372Snjlcompiler 610126372Snjland the compiler options used during generation. 611126372Snjl 612126372Snjl Previous Release (20030918): 613126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 614126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 615126372Snjl Current Release: 616126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 617126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 618126372Snjl 619126372Snjl 620126372Snjl2) iASL Compiler: 621126372Snjl 622126372SnjlImplemented detection of non-ASCII characters within the input 623126372Snjlsource ASL file. This catches attempts to compile binary (AML) 624126372Snjlfiles early in the compile, with an informative error message. 625126372Snjl 626126372SnjlFixed a problem where the disassembler would fault if the output 627126372Snjlfilename could not be generated or if the output file could not 628126372Snjlbe 629126372Snjlopened. 630126372Snjl 631126372Snjl---------------------------------------- 632126372Snjl18 September 2003. Summary of changes for version 20030918: 633126372Snjl 634126372Snjl 635126372Snjl1) ACPI CA Core Subsystem: 636126372Snjl 637126372SnjlFound and fixed a longstanding problem with the late execution of 638126372Snjlthe various deferred AML opcodes (such as Operation Regions, 639126372SnjlBuffer Fields, Buffers, and Packages). If the name string 640126372Snjlspecified for the name of the new object placed the object in a 641126372Snjlscope other than the current scope, the initialization/execution 642126372Snjlof the opcode failed. The solution to this problem was to 643126372Snjlimplement a mechanism where the late execution of such opcodes 644126372Snjldoes not attempt to lookup/create the name a second time in an 645126372Snjlincorrect scope. This fixes the "region size computed 646126372Snjlincorrectly" problem. 647126372Snjl 648126372SnjlFixed a call to AcpiHwRegisterWrite in hwregs.c that was causing 649126372Snjla 650126372SnjlGlobal Lock AE_BAD_PARAMETER error. 651126372Snjl 652126372SnjlFixed several 64-bit issues with prototypes, casting and data 653126372Snjltypes. 654126372Snjl 655126372SnjlRemoved duplicate prototype from acdisasm.h 656126372Snjl 657126372SnjlFixed an issue involving EC Operation Region Detach (Shaohua Li) 658126372Snjl 659126372SnjlCode and Data Size: Current and previous core subsystem library 660126372Snjlsizes are shown below. These are the code and data sizes for the 661126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 662126372Snjlthese values do not include any ACPI driver or OSPM code. The 663126372Snjldebug version of the code includes the debug output trace 664126372Snjlmechanism and has a much larger code and data size. Note that 665126372Snjlthese values will vary depending on the efficiency of the 666126372Snjlcompiler 667126372Snjland the compiler options used during generation. 668126372Snjl 669126372Snjl Previous Release: 670126372Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 671126372Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 672126372Snjl Current Release: 673126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 674126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 675126372Snjl 676126372Snjl 677126372Snjl2) Linux: 678126372Snjl 679126372SnjlFixed the AcpiOsSleep implementation in osunixxf.c to pass the 680126372Snjlcorrect sleep time in seconds. 681126372Snjl 682126372Snjl---------------------------------------- 683126372Snjl14 July 2003. Summary of changes for version 20030619: 684126372Snjl 685126372Snjl1) ACPI CA Core Subsystem: 686126372Snjl 687126372SnjlParse SSDTs in order discovered, as opposed to reverse order 688126372Snjl(Hrvoje Habjanic) 689126372Snjl 690126372SnjlFixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas 691126372SnjlKlausner, 692126372Snjl Nate Lawson) 693126372Snjl 694126372Snjl 695126372Snjl2) Linux: 696126372Snjl 697126372SnjlDynamically allocate SDT list (suggested by Andi Kleen) 698126372Snjl 699126372Snjlproc function return value cleanups (Andi Kleen) 700126372Snjl 701126372SnjlCorrectly handle NMI watchdog during long stalls (Andrew Morton) 702126372Snjl 703126372SnjlMake it so acpismp=force works (reported by Andrew Morton) 704126372Snjl 705126372Snjl 706126372Snjl---------------------------------------- 707117521Snjl19 June 2003. Summary of changes for version 20030619: 708117521Snjl 709117521Snjl1) ACPI CA Core Subsystem: 710117521Snjl 711117521SnjlFix To/FromBCD, eliminating the need for an arch-specific 712117521Snjl#define. 713117521Snjl 714117521SnjlDo not acquire a semaphore in the S5 shutdown path. 715117521Snjl 716117521SnjlFix ex_digits_needed for 0. (Takayoshi Kochi) 717117521Snjl 718117521SnjlFix sleep/stall code reversal. (Andi Kleen) 719117521Snjl 720117521SnjlRevert a change having to do with control method calling 721117521Snjlsemantics. 722117521Snjl 723117521Snjl2) Linux: 724117521Snjl 725117521Snjlacpiphp update (Takayoshi Kochi) 726117521Snjl 727117521SnjlExport acpi_disabled for sonypi (Stelian Pop) 728117521Snjl 729117521SnjlMention acpismp=force in config help 730117521Snjl 731117521SnjlRe-add acpitable.c and acpismp=force. This improves backwards 732117521Snjlcompatibility and also cleans up the code to a significant 733117521Snjldegree. 734117521Snjl 735117521SnjlAdd ASUS Value-add driver (Karol Kozimor and Julien Lerouge) 736117521Snjl 737117521Snjl---------------------------------------- 738117521Snjl22 May 2003. Summary of changes for version 20030522: 739117521Snjl 740117521Snjl1) ACPI CA Core Subsystem: 741117521Snjl 742117521SnjlFound and fixed a reported problem where an AE_NOT_FOUND error 743117521Snjloccurred occasionally during _BST evaluation. This turned out to 744117521Snjlbe an Owner ID allocation issue where a called method did not get 745117521Snjla new ID assigned to it. Eventually, (after 64k calls), the 746126372SnjlOwner 747126372SnjlID UINT16 would wraparound so that the ID would be the same as 748126372Snjlthe 749126372Snjlcaller's and the called method would delete the caller's 750117521Snjlnamespace. 751117521Snjl 752117521SnjlImplemented extended error reporting for control methods that are 753117521Snjlaborted due to a run-time exception. Output includes the exact 754117521SnjlAML instruction that caused the method abort, a dump of the 755126372Snjlmethod 756126372Snjllocals and arguments at the time of the abort, and a trace of all 757126372Snjlnested control method calls. 758117521Snjl 759117521SnjlModified the interpreter to allow the creation of buffers of zero 760117521Snjllength from the AML code. Implemented new code to ensure that no 761117521Snjlattempt is made to actually allocate a memory buffer (of length 762117521Snjlzero) - instead, a simple buffer object with a NULL buffer 763126372Snjlpointer 764126372Snjland length zero is created. A warning is no longer issued when 765126372Snjlthe AML attempts to create a zero-length buffer. 766117521Snjl 767117521SnjlImplemented a workaround for the "leading asterisk issue" in 768117521Snjl_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading 769117521Snjlasterisk is automatically removed if present in any HID, UID, or 770117521SnjlCID strings. The iASL compiler will still flag this asterisk as 771117521Snjlan error, however. 772117521Snjl 773117521SnjlImplemented full support for _CID methods that return a package 774126372Snjlof 775126372Snjlmultiple CIDs (Compatible IDs). The AcpiGetObjectInfo() 776126372Snjlinterface 777126372Snjlnow additionally returns a device _CID list if present. This 778126372Snjlrequired a change to the external interface in order to pass an 779126372SnjlACPI_BUFFER object as a parameter since the _CID list is of 780117521Snjlvariable length. 781117521Snjl 782117521SnjlFixed a problem with the new AE_SAME_HANDLER exception where 783117521Snjlhandler initialization code did not know about this exception. 784117521Snjl 785117521SnjlCode and Data Size: Current and previous core subsystem library 786117521Snjlsizes are shown below. These are the code and data sizes for the 787117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 788117521Snjlthese values do not include any ACPI driver or OSPM code. The 789117521Snjldebug version of the code includes the debug output trace 790117521Snjlmechanism and has a much larger code and data size. Note that 791117521Snjlthese values will vary depending on the efficiency of the 792126372Snjlcompiler 793126372Snjland the compiler options used during generation. 794117521Snjl 795117521Snjl Previous Release (20030509): 796117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 797117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 798117521Snjl Current Release: 799117521Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 800117521Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 801117521Snjl 802117521Snjl 803117521Snjl2) Linux: 804117521Snjl 805117521SnjlFixed a bug in which we would reinitialize the ACPI interrupt 806117521Snjlafter it was already working, thus disabling all ACPI and the 807126372SnjlIRQs 808126372Snjlfor any other device sharing the interrupt. (Thanks to Stian 809117521SnjlJordet) 810117521Snjl 811117521SnjlToshiba driver update (John Belmonte) 812117521Snjl 813117521SnjlReturn only 0 or 1 for our interrupt handler status (Andrew 814117521SnjlMorton) 815117521Snjl 816117521Snjl 817117521Snjl3) iASL Compiler: 818117521Snjl 819117521SnjlFixed a reported problem where multiple (nested) ElseIf() 820117521Snjlstatements were not handled correctly by the compiler, resulting 821117521Snjlin incorrect warnings and incorrect AML code. This was a problem 822117521Snjlin both the ASL parser and the code generator. 823117521Snjl 824117521Snjl 825117521Snjl4) Documentation: 826117521Snjl 827117521SnjlAdded changes to existing interfaces, new exception codes, and 828126372Snjlnew 829126372Snjltext concerning reference count object management versus garbage 830126372Snjlcollection. 831117521Snjl 832117521Snjl---------------------------------------- 833117521Snjl09 May 2003. Summary of changes for version 20030509. 834117521Snjl 835117521Snjl 836117521Snjl1) ACPI CA Core Subsystem: 837117521Snjl 838117521SnjlChanged the subsystem initialization sequence to hold off 839117521Snjlinstallation of address space handlers until the hardware has 840126372Snjlbeen 841126372Snjlinitialized and the system has entered ACPI mode. This is 842126372Snjlbecause 843126372Snjlthe installation of space handlers can cause _REG methods to be 844126372Snjlrun. Previously, the _REG methods could potentially be run 845126372Snjlbefore 846126372SnjlACPI mode was enabled. 847117521Snjl 848117521SnjlFixed some memory leak issues related to address space handler 849126372Snjland 850126372Snjlnotify handler installation. There were some problems with the 851126372Snjlreference count mechanism caused by the fact that the handler 852117521Snjlobjects are shared across several namespace objects. 853117521Snjl 854117521SnjlFixed a reported problem where reference counts within the 855117521Snjlnamespace were not properly updated when named objects created by 856117521Snjlmethod execution were deleted. 857117521Snjl 858117521SnjlFixed a reported problem where multiple SSDTs caused a deletion 859117521Snjlissue during subsystem termination. Restructured the table data 860117521Snjlstructures to simplify the linked lists and the related code. 861117521Snjl 862117521SnjlFixed a problem where the table ID associated with secondary 863117521Snjltables (SSDTs) was not being propagated into the namespace 864126372Snjlobjects 865126372Snjlcreated by those tables. This would only present a problem for 866126372Snjltables that are unloaded at run-time, however. 867117521Snjl 868117521SnjlUpdated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE 869117521Snjltype as the length parameter (instead of UINT32). 870117521Snjl 871117521SnjlSolved a long-standing problem where an ALREADY_EXISTS error 872117521Snjlappears on various systems. This problem could happen when there 873117521Snjlare multiple PCI_Config operation regions under a single PCI root 874117521Snjlbus. This doesn't happen very frequently, but there are some 875117521Snjlsystems that do this in the ASL. 876117521Snjl 877117521SnjlFixed a reported problem where the internal DeleteNode function 878117521Snjlwas incorrectly handling the case where a namespace node was the 879117521Snjlfirst in the parent's child list, and had additional peers (not 880117521Snjlthe only child, but first in the list of children.) 881117521Snjl 882117521SnjlCode and Data Size: Current core subsystem library sizes are 883126372Snjlshown 884126372Snjlbelow. These are the code and data sizes for the acpica.lib 885126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 886126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 887126372Snjlversion of the code includes the debug output trace mechanism and 888126372Snjlhas a much larger code and data size. Note that these values 889126372Snjlwill 890126372Snjlvary depending on the efficiency of the compiler and the compiler 891126372Snjloptions used during generation. 892117521Snjl 893117521Snjl Previous Release 894117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 895117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 896117521Snjl Current Release: 897117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 898117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 899117521Snjl 900117521Snjl 901117521Snjl2) Linux: 902117521Snjl 903117521SnjlAllow ":" in OS override string (Ducrot Bruno) 904117521Snjl 905117521SnjlKobject fix (Greg KH) 906117521Snjl 907117521Snjl 908117521Snjl3 iASL Compiler/Disassembler: 909117521Snjl 910117521SnjlFixed a problem in the generation of the C source code files (AML 911117521Snjlis emitted in C source statements for BIOS inclusion) where the 912117521SnjlAscii dump that appears within a C comment at the end of each 913126372Snjlline 914126372Snjlcould cause a compile time error if the AML sequence happens to 915126372Snjlhave an open comment or close comment sequence embedded. 916117521Snjl 917117521Snjl 918117521Snjl---------------------------------------- 919117521Snjl24 April 2003. Summary of changes for version 20030424. 920117521Snjl 921117521Snjl 922117521Snjl1) ACPI CA Core Subsystem: 923117521Snjl 924117521SnjlSupport for big-endian systems has been implemented. Most of the 925117521Snjlsupport has been invisibly added behind big-endian versions of 926126372Snjlthe 927126372SnjlACPI_MOVE_* macros. 928117521Snjl 929117521SnjlFixed a problem in AcpiHwDisableGpeBlock() and 930117521SnjlAcpiHwClearGpeBlock() where an incorrect offset was passed to the 931117521Snjllow level hardware write routine. The offset parameter was 932117521Snjlactually eliminated from the low level read/write routines 933126372Snjlbecause 934126372Snjlthey had become obsolete. 935117521Snjl 936117521SnjlFixed a problem where a handler object was deleted twice during 937117521Snjlthe removal of a fixed event handler. 938117521Snjl 939117521Snjl 940117521Snjl2) Linux: 941117521Snjl 942117521SnjlA fix for SMP systems with link devices was contributed by 943117521SnjlCompaq's Dan Zink. 944117521Snjl 945117521Snjl(2.5) Return whether we handled the interrupt in our IRQ handler. 946117521Snjl(Linux ISRs no longer return void, so we can propagate the 947126372Snjlhandler 948126372Snjlreturn value from the ACPI CA core back to the OS.) 949117521Snjl 950117521Snjl 951117521Snjl3) Documentation: 952117521Snjl 953117521SnjlThe ACPI CA Programmer Reference has been updated to reflect new 954117521Snjlinterfaces and changes to existing interfaces. 955117521Snjl 956117521Snjl---------------------------------------- 957117521Snjl28 March 2003. Summary of changes for version 20030328. 958117521Snjl 959117521Snjl1) ACPI CA Core Subsystem: 960117521Snjl 961117521SnjlThe GPE Block Device support has been completed. New interfaces 962117521Snjlare AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event 963117521Snjlinterfaces (enable, disable, clear, getstatus) have been split 964117521Snjlinto separate interfaces for Fixed Events and General Purpose 965117521SnjlEvents (GPEs) in order to support GPE Block Devices properly. 966117521Snjl 967117521SnjlFixed a problem where the error message "Failed to acquire 968117521Snjlsemaphore" would appear during operations on the embedded 969117521Snjlcontroller (EC). 970117521Snjl 971117521SnjlCode and Data Size: Current core subsystem library sizes are 972126372Snjlshown 973126372Snjlbelow. These are the code and data sizes for the acpica.lib 974126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 975126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 976126372Snjlversion of the code includes the debug output trace mechanism and 977126372Snjlhas a much larger code and data size. Note that these values 978126372Snjlwill 979126372Snjlvary depending on the efficiency of the compiler and the compiler 980126372Snjloptions used during generation. 981117521Snjl 982117521Snjl Previous Release 983117521Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 984117521Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 985117521Snjl Current Release: 986117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 987117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 988117521Snjl 989117521Snjl 990117521Snjl---------------------------------------- 991114237Snjl28 February 2003. Summary of changes for version 20030228. 992114237Snjl 993114237Snjl 994114237Snjl1) ACPI CA Core Subsystem: 995114237Snjl 996114237SnjlThe GPE handling and dispatch code has been completely overhauled 997114237Snjlin preparation for support of GPE Block Devices (ID ACPI0006). 998114237SnjlThis affects internal data structures and code only; there should 999114237Snjlbe no differences visible externally. One new file has been 1000114237Snjladded, evgpeblk.c 1001114237Snjl 1002114237SnjlThe FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only 1003114237Snjlfields that are used to determine the GPE block lengths. The 1004114237SnjlREGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address 1005114237Snjlstructures are ignored. This is per the ACPI specification but 1006126372Snjlit 1007126372Snjlisn't very clear. The full 256 Block 0/1 GPEs are now supported 1008126372Snjl(the use of REGISTER_BIT_WIDTH limited the number of GPEs to 1009126372Snjl128). 1010114237Snjl 1011114237SnjlIn the SCI interrupt handler, removed the read of the PM1_CONTROL 1012114237Snjlregister to look at the SCI_EN bit. On some machines, this read 1013114237Snjlcauses an SMI event and greatly slows down SCI events. (This may 1014114237Snjlin fact be the cause of slow battery status response on some 1015114237Snjlsystems.) 1016114237Snjl 1017114237SnjlFixed a problem where a store of a NULL string to a package 1018126372Snjlobject 1019126372Snjlcould cause the premature deletion of the object. This was seen 1020126372Snjlduring execution of the battery _BIF method on some systems, 1021126372Snjlresulting in no battery data being returned. 1022114237Snjl 1023114237SnjlAdded AcpiWalkResources interface to simplify parsing of resource 1024114237Snjllists. 1025114237Snjl 1026114237SnjlCode and Data Size: Current core subsystem library sizes are 1027126372Snjlshown 1028126372Snjlbelow. These are the code and data sizes for the acpica.lib 1029126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1030126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1031126372Snjlversion of the code includes the debug output trace mechanism and 1032126372Snjlhas a much larger code and data size. Note that these values 1033126372Snjlwill 1034126372Snjlvary depending on the efficiency of the compiler and the compiler 1035126372Snjloptions used during generation. 1036114237Snjl 1037114237Snjl Previous Release 1038114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 1039114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 1040114237Snjl Current Release: 1041114237Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 1042114237Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 1043114237Snjl 1044114237Snjl 1045114237Snjl2) Linux 1046114237Snjl 1047114237SnjlS3 fixes (Ole Rohne) 1048114237Snjl 1049114237SnjlUpdate ACPI PHP driver with to use new acpi_walk_resource API 1050114237Snjl(Bjorn Helgaas) 1051114237Snjl 1052114237SnjlAdd S4BIOS support (Pavel Machek) 1053114237Snjl 1054114237SnjlMap in entire table before performing checksum (John Stultz) 1055114237Snjl 1056114237SnjlExpand the mem= cmdline to allow the specification of reserved 1057126372Snjland 1058126372SnjlACPI DATA blocks (Pavel Machek) 1059114237Snjl 1060114237SnjlNever use ACPI on VISWS 1061114237Snjl 1062114237SnjlFix derive_pci_id (Ducrot Bruno, Alvaro Lopez) 1063114237Snjl 1064114237SnjlRevert a change that allowed P_BLK lengths to be 4 or 5. This is 1065114237Snjlcausing us to think that some systems support C2 when they really 1066114237Snjldon't. 1067114237Snjl 1068114237SnjlDo not count processor objects for non-present CPUs (Thanks to 1069114237SnjlDominik Brodowski) 1070114237Snjl 1071114237Snjl 1072114237Snjl3) iASL Compiler: 1073114237Snjl 1074114237SnjlFixed a problem where ASL include files could not be found and 1075114237Snjlopened. 1076114237Snjl 1077114237SnjlAdded support for the _PDC reserved name. 1078114237Snjl 1079114237Snjl 1080117521Snjl---------------------------------------- 1081114237Snjl22 January 2003. Summary of changes for version 20030122. 1082114237Snjl 1083114237Snjl 1084114237Snjl1) ACPI CA Core Subsystem: 1085114237Snjl 1086114237SnjlAdded a check for constructs of the form: Store (Local0, Local0) 1087114237Snjlwhere Local0 is not initialized. Apparently, some BIOS 1088114237Snjlprogrammers believe that this is a NOOP. Since this store 1089126372Snjldoesn't 1090126372Snjldo anything anyway, the new prototype behavior will ignore this 1091126372Snjlerror. This is a case where we can relax the strict checking in 1092126372Snjlthe interpreter in the name of compatibility. 1093114237Snjl 1094114237Snjl 1095114237Snjl2) Linux 1096114237Snjl 1097114237SnjlThe AcpiSrc Source Conversion Utility has been released with the 1098114237SnjlLinux package for the first time. This is the utility that is 1099114237Snjlused to convert the ACPI CA base source code to the Linux 1100114237Snjlversion. 1101114237Snjl 1102114237Snjl(Both) Handle P_BLK lengths shorter than 6 more gracefully 1103114237Snjl 1104114237Snjl(Both) Move more headers to include/acpi, and delete an unused 1105114237Snjlheader. 1106114237Snjl 1107114237Snjl(Both) Move drivers/acpi/include directory to include/acpi 1108114237Snjl 1109114237Snjl(Both) Boot functions don't use cmdline, so don't pass it around 1110114237Snjl 1111114237Snjl(Both) Remove include of unused header (Adrian Bunk) 1112114237Snjl 1113114237Snjl(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since 1114114237Snjlthe 1115114237Snjlformer now also includes the latter, acpiphp.h only needs the 1116126372Snjlone, 1117126372Snjlnow. 1118114237Snjl 1119114237Snjl(2.5) Make it possible to select method of bios restoring after 1120114237SnjlS3 1121114237Snjlresume. [=> no more ugly ifdefs] (Pavel Machek) 1122114237Snjl 1123114237Snjl(2.5) Make proc write interfaces work (Pavel Machek) 1124114237Snjl 1125114237Snjl(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski) 1126114237Snjl 1127114237Snjl(2.5) Break out ACPI Perf code into its own module, under cpufreq 1128114237Snjl(Dominik Brodowski) 1129114237Snjl 1130114237Snjl(2.4) S4BIOS support (Ducrot Bruno) 1131114237Snjl 1132114237Snjl(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio 1133114237SnjlVisinoni) 1134114237Snjl 1135114237Snjl 1136114237Snjl3) iASL Compiler: 1137114237Snjl 1138114237SnjlAdded support to disassemble SSDT and PSDTs. 1139114237Snjl 1140114237SnjlImplemented support to obtain SSDTs from the Windows registry if 1141114237Snjlavailable. 1142114237Snjl 1143114237Snjl 1144102550Siwasaki---------------------------------------- 1145114237Snjl09 January 2003. Summary of changes for version 20030109. 1146114237Snjl 1147114237Snjl1) ACPI CA Core Subsystem: 1148114237Snjl 1149114237SnjlChanged the behavior of the internal Buffer-to-String conversion 1150114237Snjlfunction. The current ACPI specification states that the 1151126372Snjlcontents 1152126372Snjlof the buffer are "converted to a string of two-character 1153126372Snjlhexadecimal numbers, each separated by a space". Unfortunately, 1154126372Snjlthis definition is not backwards compatible with existing ACPI 1155126372Snjl1.0 1156126372Snjlimplementations (although the behavior was not defined in the 1157126372SnjlACPI 1158126372Snjl1.0 specification). The new behavior simply copies data from the 1159126372Snjlbuffer to the string until a null character is found or the end 1160126372Snjlof 1161126372Snjlthe buffer is reached. The new String object is always null 1162126372Snjlterminated. This problem was seen during the generation of _BIF 1163126372Snjlbattery data where incorrect strings were returned for battery 1164126372Snjltype, etc. This will also require an errata to the ACPI 1165126372Snjlspecification. 1166114237Snjl 1167114237SnjlRenamed all instances of NATIVE_UINT and NATIVE_INT to 1168114237SnjlACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively. 1169114237Snjl 1170114237SnjlCopyright in all module headers (both Linux and non-Linux) has be 1171114237Snjlupdated to 2003. 1172114237Snjl 1173114237SnjlCode and Data Size: Current core subsystem library sizes are 1174126372Snjlshown 1175126372Snjlbelow. These are the code and data sizes for the acpica.lib 1176126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1177126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1178126372Snjlversion of the code includes the debug output trace mechanism and 1179126372Snjlhas a much larger code and data size. Note that these values 1180126372Snjlwill 1181126372Snjlvary depending on the efficiency of the compiler and the compiler 1182126372Snjloptions used during generation. 1183114237Snjl 1184114237Snjl Previous Release 1185114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 1186114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 1187114237Snjl Current Release: 1188114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 1189114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 1190114237Snjl 1191114237Snjl 1192114237Snjl2) Linux 1193114237Snjl 1194114237SnjlFixed an oops on module insertion/removal (Matthew Tippett) 1195114237Snjl 1196114237Snjl(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante) 1197114237Snjl 1198114237Snjl(2.5) Replace pr_debug (Randy Dunlap) 1199114237Snjl 1200114237Snjl(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski) 1201114237Snjl 1202114237Snjl(Both) Eliminate spawning of thread from timer callback, in favor 1203114237Snjlof schedule_work() 1204114237Snjl 1205114237Snjl(Both) Show Lid status in /proc (Zdenek OGAR Skalak) 1206114237Snjl 1207114237Snjl(Both) Added define for Fixed Function HW region (Matthew Wilcox) 1208114237Snjl 1209114237Snjl(Both) Add missing statics to button.c (Pavel Machek) 1210114237Snjl 1211114237SnjlSeveral changes have been made to the source code translation 1212114237Snjlutility that generates the Linux Code in order to make the code 1213114237Snjlmore "Linux-like": 1214114237Snjl 1215114237SnjlAll typedefs on structs and unions have been removed in keeping 1216114237Snjlwith the Linux coding style. 1217114237Snjl 1218114237SnjlRemoved the non-Linux SourceSafe module revision number from each 1219114237Snjlmodule header. 1220114237Snjl 1221114237SnjlCompleted major overhaul of symbols to be lowercased for linux. 1222114237SnjlDoubled the number of symbols that are lowercased. 1223114237Snjl 1224114237SnjlFixed a problem where identifiers within procedure headers and 1225114237Snjlwithin quotes were not fully lower cased (they were left with a 1226114237Snjlstarting capital.) 1227114237Snjl 1228114237SnjlSome C macros whose only purpose is to allow the generation of 16- 1229114237Snjlbit code are now completely removed in the Linux code, increasing 1230114237Snjlreadability and maintainability. 1231114237Snjl 1232114237Snjl---------------------------------------- 1233114237Snjl 1234114237Snjl12 December 2002. Summary of changes for version 20021212. 1235114237Snjl 1236114237Snjl 1237114237Snjl1) ACPI CA Core Subsystem: 1238114237Snjl 1239114237SnjlFixed a problem where the creation of a zero-length AML Buffer 1240114237Snjlwould cause a fault. 1241114237Snjl 1242114237SnjlFixed a problem where a Buffer object that pointed to a static 1243126372SnjlAML 1244126372Snjlbuffer (in an ACPI table) could inadvertently be deleted, causing 1245126372Snjlmemory corruption. 1246114237Snjl 1247114237SnjlFixed a problem where a user buffer (passed in to the external 1248114237SnjlACPI CA interfaces) could be overwritten if the buffer was too 1249114237Snjlsmall to complete the operation, causing memory corruption. 1250114237Snjl 1251114237SnjlFixed a problem in the Buffer-to-String conversion code where a 1252114237Snjlstring of length one was always returned, regardless of the size 1253114237Snjlof the input Buffer object. 1254114237Snjl 1255114237SnjlRemoved the NATIVE_CHAR data type across the entire source due to 1256114237Snjllack of need and lack of consistent use. 1257114237Snjl 1258114237SnjlCode and Data Size: Current core subsystem library sizes are 1259126372Snjlshown 1260126372Snjlbelow. These are the code and data sizes for the acpica.lib 1261126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1262126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1263126372Snjlversion of the code includes the debug output trace mechanism and 1264126372Snjlhas a much larger code and data size. Note that these values 1265126372Snjlwill 1266126372Snjlvary depending on the efficiency of the compiler and the compiler 1267126372Snjloptions used during generation. 1268114237Snjl 1269114237Snjl Previous Release 1270114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 1271114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 1272114237Snjl Current Release: 1273114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 1274114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 1275114237Snjl 1276114237Snjl 1277114237Snjl---------------------------------------- 1278114237Snjl05 December 2002. Summary of changes for version 20021205. 1279114237Snjl 1280114237Snjl1) ACPI CA Core Subsystem: 1281114237Snjl 1282114237SnjlFixed a problem where a store to a String or Buffer object could 1283114237Snjlcause corruption of the DSDT if the object type being stored was 1284114237Snjlthe same as the target object type and the length of the object 1285114237Snjlbeing stored was equal to or smaller than the original (existing) 1286114237Snjltarget object. This was seen to cause corruption of battery _BIF 1287114237Snjlbuffers if the _BIF method modified the buffer on the fly. 1288114237Snjl 1289114237SnjlFixed a problem where an internal error was generated if a 1290126372Snjlcontrol 1291126372Snjlmethod invocation was used in an OperationRegion, Buffer, or 1292126372SnjlPackage declaration. This was caused by the deferred parsing of 1293126372Snjlthe control method and thus the deferred creation of the internal 1294126372Snjlmethod object. The solution to this problem was to create the 1295126372Snjlinternal method object at the moment the method is encountered in 1296126372Snjlthe first pass - so that subsequent references to the method will 1297126372Snjlable to obtain the required parameter count and thus properly 1298126372Snjlparse the method invocation. This problem presented itself as an 1299126372SnjlAE_AML_INTERNAL during the pass 1 parse phase during table load. 1300114237Snjl 1301114237SnjlFixed a problem where the internal String object copy routine did 1302114237Snjlnot always allocate sufficient memory for the target String 1303126372Snjlobject 1304126372Snjland caused memory corruption. This problem was seen to cause 1305126372Snjl"Allocation already present in list!" errors as memory allocation 1306126372Snjlbecame corrupted. 1307114237Snjl 1308114237SnjlImplemented a new function for the evaluation of namespace 1309126372Snjlobjects 1310126372Snjlthat allows the specification of the allowable return object 1311126372Snjltypes. This simplifies a lot of code that checks for a return 1312126372Snjlobject of one or more specific objects returned from the 1313114237Snjlevaluation (such as _STA, etc.) This may become and external 1314114237Snjlfunction if it would be useful to ACPI-related drivers. 1315114237Snjl 1316114237SnjlCompleted another round of prefixing #defines with "ACPI_" for 1317114237Snjlclarity. 1318114237Snjl 1319114237SnjlCompleted additional code restructuring to allow more modular 1320114237Snjllinking for iASL compiler and AcpiExec. Several files were split 1321114237Snjlcreating new files. New files: nsparse.c dsinit.c evgpe.c 1322114237Snjl 1323114237SnjlImplemented an abort mechanism to terminate an executing control 1324114237Snjlmethod via the AML debugger. This feature is useful for 1325126372Snjldebugging 1326126372Snjlcontrol methods that depend (wait) for specific hardware 1327126372Snjlresponses. 1328114237Snjl 1329114237SnjlCode and Data Size: Current core subsystem library sizes are 1330126372Snjlshown 1331126372Snjlbelow. These are the code and data sizes for the acpica.lib 1332126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1333126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1334126372Snjlversion of the code includes the debug output trace mechanism and 1335126372Snjlhas a much larger code and data size. Note that these values 1336126372Snjlwill 1337126372Snjlvary depending on the efficiency of the compiler and the compiler 1338126372Snjloptions used during generation. 1339114237Snjl 1340114237Snjl Previous Release 1341114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 1342114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 1343114237Snjl Current Release: 1344114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 1345114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 1346114237Snjl 1347114237Snjl 1348114237Snjl2) iASL Compiler/Disassembler 1349114237Snjl 1350114237SnjlFixed a compiler code generation problem for "Interrupt" Resource 1351114237SnjlDescriptors. If specified in the ASL, the optional "Resource 1352114237SnjlSource Index" and "Resource Source" fields were not inserted into 1353114237Snjlthe correct location within the AML resource descriptor, creating 1354114237Snjlan invalid descriptor. 1355114237Snjl 1356114237SnjlFixed a disassembler problem for "Interrupt" resource 1357126372Snjldescriptors. 1358126372SnjlThe optional "Resource Source Index" and "Resource Source" fields 1359126372Snjlwere ignored. 1360114237Snjl 1361114237Snjl 1362114237Snjl---------------------------------------- 1363114237Snjl22 November 2002. Summary of changes for version 20021122. 1364114237Snjl 1365114237Snjl 1366114237Snjl1) ACPI CA Core Subsystem: 1367114237Snjl 1368114237SnjlFixed a reported problem where an object stored to a Method Local 1369114237Snjlor Arg was not copied to a new object during the store - the 1370114237Snjlobject pointer was simply copied to the Local/Arg. This caused 1371114237Snjlall subsequent operations on the Local/Arg to also affect the 1372114237Snjloriginal source of the store operation. 1373114237Snjl 1374114237SnjlFixed a problem where a store operation to a Method Local or Arg 1375114237Snjlwas not completed properly if the Local/Arg contained a reference 1376114237Snjl(from RefOf) to a named field. The general-purpose store-to- 1377114237Snjlnamespace-node code is now used so that this case is handled 1378114237Snjlautomatically. 1379114237Snjl 1380114237SnjlFixed a problem where the internal object copy routine would 1381126372Snjlcause 1382126372Snjla protection fault if the object being copied was a Package and 1383126372Snjlcontained either 1) a NULL package element or 2) a nested sub- 1384114237Snjlpackage. 1385114237Snjl 1386114237SnjlFixed a problem with the GPE initialization that resulted from an 1387114237Snjlambiguity in the ACPI specification. One section of the 1388114237Snjlspecification states that both the address and length of the GPE 1389114237Snjlblock must be zero if the block is not supported. Another 1390126372Snjlsection 1391126372Snjlimplies that only the address need be zero if the block is not 1392126372Snjlsupported. The code has been changed so that both the address 1393126372Snjland 1394126372Snjlthe length must be non-zero to indicate a valid GPE block (i.e., 1395126372Snjlif either the address or the length is zero, the GPE block is 1396126372Snjlinvalid.) 1397114237Snjl 1398114237SnjlCode and Data Size: Current core subsystem library sizes are 1399126372Snjlshown 1400126372Snjlbelow. These are the code and data sizes for the acpica.lib 1401126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1402126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1403126372Snjlversion of the code includes the debug output trace mechanism and 1404126372Snjlhas a much larger code and data size. Note that these values 1405126372Snjlwill 1406126372Snjlvary depending on the efficiency of the compiler and the compiler 1407126372Snjloptions used during generation. 1408114237Snjl 1409114237Snjl Previous Release 1410114237Snjl Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 1411114237Snjl Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 1412114237Snjl Current Release: 1413114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 1414114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 1415114237Snjl 1416114237Snjl 1417114237Snjl2) Linux 1418114237Snjl 1419114237SnjlCleaned up EC driver. Exported an external EC read/write 1420114237Snjlinterface. By going through this, other drivers (most notably 1421114237Snjlsonypi) will be able to serialize access to the EC. 1422114237Snjl 1423114237Snjl 1424114237Snjl3) iASL Compiler/Disassembler 1425114237Snjl 1426114237SnjlImplemented support to optionally generate include files for both 1427114237SnjlASM and C (the -i switch). This simplifies BIOS development by 1428114237Snjlautomatically creating include files that contain external 1429114237Snjldeclarations for the symbols that are created within the 1430114237Snjl(optionally generated) ASM and C AML source files. 1431114237Snjl 1432114237Snjl 1433114237Snjl---------------------------------------- 1434107325Siwasaki15 November 2002. Summary of changes for version 20021115. 1435104470Siwasaki 1436107325Siwasaki1) ACPI CA Core Subsystem: 1437107325Siwasaki 1438114237SnjlFixed a memory leak problem where an error during resolution of 1439114237Snjlmethod arguments during a method invocation from another method 1440114237Snjlfailed to cleanup properly by deleting all successfully resolved 1441114237Snjlargument objects. 1442107325Siwasaki 1443114237SnjlFixed a problem where the target of the Index() operator was not 1444114237Snjlcorrectly constructed if the source object was a package. This 1445114237Snjlproblem has not been detected because the use of a target operand 1446114237Snjlwith Index() is very rare. 1447107325Siwasaki 1448107325SiwasakiFixed a problem with the Index() operator where an attempt was 1449107325Siwasakimade to delete the operand objects twice. 1450107325Siwasaki 1451107325SiwasakiFixed a problem where an attempt was made to delete an operand 1452114237Snjltwice during execution of the CondRefOf() operator if the target 1453114237Snjldid not exist. 1454107325Siwasaki 1455114237SnjlImplemented the first of perhaps several internal create object 1456114237Snjlfunctions that create and initialize a specific object type. 1457126372SnjlThis 1458126372Snjlconsolidates duplicated code wherever the object is created, thus 1459126372Snjlshrinking the size of the subsystem. 1460107325Siwasaki 1461114237SnjlImplemented improved debug/error messages for errors that occur 1462114237Snjlduring nested method invocations. All executing method pathnames 1463114237Snjlare displayed (with the error) as the call stack is unwound - 1464126372Snjlthus 1465126372Snjlsimplifying debug. 1466107325Siwasaki 1467107325SiwasakiFixed a problem introduced in the 10/02 release that caused 1468114237Snjlpremature deletion of a buffer object if a buffer was used as an 1469114237SnjlASL operand where an integer operand is required (Thus causing an 1470114237Snjlimplicit object conversion from Buffer to Integer.) The change 1471126372Snjlin 1472126372Snjlthe 10/02 release was attempting to fix a memory leak (albeit 1473114237Snjlincorrectly.) 1474107325Siwasaki 1475107325SiwasakiCode and Data Size: Current core subsystem library sizes are 1476126372Snjlshown 1477126372Snjlbelow. These are the code and data sizes for the acpica.lib 1478126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1479126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1480126372Snjlversion of the code includes the debug output trace mechanism and 1481126372Snjlhas a much larger code and data size. Note that these values 1482126372Snjlwill 1483126372Snjlvary depending on the efficiency of the compiler and the compiler 1484126372Snjloptions used during generation. 1485107325Siwasaki 1486107325Siwasaki Previous Release 1487107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 1488107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 1489107325Siwasaki Current Release: 1490107325Siwasaki Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 1491107325Siwasaki Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 1492107325Siwasaki 1493107325Siwasaki 1494107325Siwasaki2) Linux 1495107325Siwasaki 1496114237SnjlChanged the implementation of the ACPI semaphores to use down() 1497114237Snjlinstead of down_interruptable(). It is important that the 1498114237Snjlexecution of ACPI control methods not be interrupted by signals. 1499114237SnjlMethods must run to completion, or the system may be left in an 1500114237Snjlunknown/unstable state. 1501107325Siwasaki 1502107325SiwasakiFixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not 1503126372Snjlset. 1504126372Snjl(Shawn Starr) 1505107325Siwasaki 1506107325Siwasaki 1507107325Siwasaki3) iASL Compiler/Disassembler 1508107325Siwasaki 1509107325Siwasaki 1510114237SnjlChanged the default location of output files. All output files 1511114237Snjlare now placed in the current directory by default instead of in 1512114237Snjlthe directory of the source file. This change may affect some 1513114237Snjlexisting makefiles, but it brings the behavior of the compiler in 1514114237Snjlline with other similar tools. The location of the output files 1515114237Snjlcan be overridden with the -p command line switch. 1516107325Siwasaki 1517114237Snjl 1518107325Siwasaki---------------------------------------- 1519107325Siwasaki11 November 2002. Summary of changes for version 20021111. 1520107325Siwasaki 1521107325Siwasaki 1522114237Snjl0) ACPI Specification 2.0B is released and is now available at: 1523114237Snjlhttp://www.acpi.info/index.html 1524107325Siwasaki 1525107325Siwasaki 1526107325Siwasaki1) ACPI CA Core Subsystem: 1527107325Siwasaki 1528107325SiwasakiImplemented support for the ACPI 2.0 SMBus Operation Regions. 1529114237SnjlThis includes the early detection and handoff of the request to 1530114237Snjlthe SMBus region handler (avoiding all of the complex field 1531107325Siwasakisupport code), and support for the bidirectional return packet 1532107325Siwasakifrom an SMBus write operation. This paves the way for the 1533107325Siwasakidevelopment of SMBus drivers in each host operating system. 1534107325Siwasaki 1535107325SiwasakiFixed a problem where the semaphore WAIT_FOREVER constant was 1536107325Siwasakidefined as 32 bits, but must be 16 bits according to the ACPI 1537107325Siwasakispecification. This had the side effect of causing ASL 1538107325SiwasakiMutex/Event timeouts even though the ASL code requested a wait 1539107325Siwasakiforever. Changed all internal references to the ACPI timeout 1540107325Siwasakiparameter to 16 bits to prevent future problems. Changed the 1541126372Snjlname 1542126372Snjlof WAIT_FOREVER to ACPI_WAIT_FOREVER. 1543107325Siwasaki 1544107325SiwasakiCode and Data Size: Current core subsystem library sizes are 1545126372Snjlshown 1546126372Snjlbelow. These are the code and data sizes for the acpica.lib 1547126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1548126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1549126372Snjlversion of the code includes the debug output trace mechanism and 1550126372Snjlhas a much larger code and data size. Note that these values 1551126372Snjlwill 1552126372Snjlvary depending on the efficiency of the compiler and the compiler 1553126372Snjloptions used during generation. 1554107325Siwasaki 1555107325Siwasaki Previous Release 1556107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 1557107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 1558107325Siwasaki Current Release: 1559107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 1560107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 1561107325Siwasaki 1562107325Siwasaki 1563107325Siwasaki2) Linux 1564107325Siwasaki 1565107325SiwasakiModule loading/unloading fixes (John Cagle) 1566107325Siwasaki 1567107325Siwasaki 1568107325Siwasaki3) iASL Compiler/Disassembler 1569107325Siwasaki 1570107325SiwasakiAdded support for the SMBBlockProcessCall keyword (ACPI 2.0) 1571107325Siwasaki 1572107325SiwasakiImplemented support for the disassembly of all SMBus protocol 1573107325Siwasakikeywords (SMBQuick, SMBWord, etc.) 1574107325Siwasaki 1575107325Siwasaki---------------------------------------- 1576107325Siwasaki01 November 2002. Summary of changes for version 20021101. 1577107325Siwasaki 1578107325Siwasaki 1579107325Siwasaki1) ACPI CA Core Subsystem: 1580107325Siwasaki 1581107325SiwasakiFixed a problem where platforms that have a GPE1 block but no 1582126372SnjlGPE0 1583126372Snjlblock were not handled correctly. This resulted in a "GPE 1584114237Snjloverlap" error message. GPE0 is no longer required. 1585107325Siwasaki 1586107325SiwasakiRemoved code added in the previous release that inserted nodes 1587114237Snjlinto the namespace in alphabetical order. This caused some side- 1588114237Snjleffects on various machines. The root cause of the problem is 1589114237Snjlstill under investigation since in theory, the internal ordering 1590114237Snjlof the namespace nodes should not matter. 1591107325Siwasaki 1592107325Siwasaki 1593114237SnjlEnhanced error reporting for the case where a named object is not 1594114237Snjlfound during control method execution. The full ACPI namepath 1595114237Snjl(name reference) of the object that was not found is displayed in 1596114237Snjlthis case. 1597107325Siwasaki 1598114237SnjlNote: as a result of the overhaul of the namespace object types 1599126372Snjlin 1600126372Snjlthe previous release, the namespace nodes for the predefined 1601114237Snjlscopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE 1602114237Snjlinstead of ACPI_TYPE_ANY. This simplifies the namespace 1603114237Snjlmanagement code but may affect code that walks the namespace tree 1604114237Snjllooking for specific object types. 1605114237Snjl 1606107325SiwasakiCode and Data Size: Current core subsystem library sizes are 1607126372Snjlshown 1608126372Snjlbelow. These are the code and data sizes for the acpica.lib 1609126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1610126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1611126372Snjlversion of the code includes the debug output trace mechanism and 1612126372Snjlhas a much larger code and data size. Note that these values 1613126372Snjlwill 1614126372Snjlvary depending on the efficiency of the compiler and the compiler 1615126372Snjloptions used during generation. 1616107325Siwasaki 1617107325Siwasaki Previous Release 1618107325Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 1619107325Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 1620107325Siwasaki Current Release: 1621107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 1622107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 1623107325Siwasaki 1624107325Siwasaki 1625107325Siwasaki2) Linux 1626107325Siwasaki 1627107325SiwasakiFixed a problem introduced in the previous release where the 1628114237SnjlProcessor and Thermal objects were not recognized and installed 1629126372Snjlin 1630126372Snjl/proc. This was related to the scope type change described 1631114237Snjlabove. 1632107325Siwasaki 1633107325Siwasaki 1634107325Siwasaki3) iASL Compiler/Disassembler 1635107325Siwasaki 1636114237SnjlImplemented the -g option to get all of the required ACPI tables 1637114237Snjlfrom the registry and save them to files (Windows version of the 1638114237Snjlcompiler only.) The required tables are the FADT, FACS, and 1639114237SnjlDSDT. 1640107325Siwasaki 1641114237SnjlAdded ACPI table checksum validation during table disassembly in 1642114237Snjlorder to catch corrupted tables. 1643107325Siwasaki 1644107325Siwasaki 1645107325Siwasaki---------------------------------------- 1646107325Siwasaki22 October 2002. Summary of changes for version 20021022. 1647107325Siwasaki 1648107325Siwasaki1) ACPI CA Core Subsystem: 1649107325Siwasaki 1650114237SnjlImplemented a restriction on the Scope operator that the target 1651114237Snjlmust already exist in the namespace at the time the operator is 1652114237Snjlencountered (during table load or method execution). In other 1653114237Snjlwords, forward references are not allowed and Scope() cannot 1654114237Snjlcreate a new object. This changes the previous behavior where the 1655114237Snjlinterpreter would create the name if not found. This new 1656126372Snjlbehavior 1657126372Snjlcorrectly enables the search-to-root algorithm during namespace 1658126372Snjllookup of the target name. Because of this upsearch, this fixes 1659126372Snjlthe known Compaq _SB_.OKEC problem and makes both the AML 1660126372Snjlinterpreter and iASL compiler compatible with other ACPI 1661114237Snjlimplementations. 1662107325Siwasaki 1663114237SnjlCompleted a major overhaul of the internal ACPI object types for 1664114237Snjlthe ACPI Namespace and the associated operand objects. Many of 1665114237Snjlthese types had become obsolete with the introduction of the two- 1666114237Snjlpass namespace load. This cleanup simplifies the code and makes 1667114237Snjlthe entire namespace load mechanism much clearer and easier to 1668114237Snjlunderstand. 1669107325Siwasaki 1670114237SnjlImproved debug output for tracking scope opening/closing to help 1671114237Snjldiagnose scoping issues. The old scope name as well as the new 1672114237Snjlscope name are displayed. Also improved error messages for 1673114237Snjlproblems with ASL Mutex objects and error messages for GPE 1674114237Snjlproblems. 1675107325Siwasaki 1676107325SiwasakiCleaned up the namespace dump code, removed obsolete code. 1677107325Siwasaki 1678114237SnjlAll string output (for all namespace/object dumps) now uses the 1679114237Snjlcommon ACPI string output procedure which handles escapes 1680126372Snjlproperly 1681126372Snjland does not emit non-printable characters. 1682107325Siwasaki 1683107325SiwasakiFixed some issues with constants in the 64-bit version of the 1684107325Siwasakilocal C library (utclib.c) 1685107325Siwasaki 1686107325Siwasaki 1687107325Siwasaki2) Linux 1688107325Siwasaki 1689107325SiwasakiEC Driver: No longer attempts to acquire the Global Lock at 1690107325Siwasakiinterrupt level. 1691107325Siwasaki 1692107325Siwasaki 1693107325Siwasaki3) iASL Compiler/Disassembler 1694107325Siwasaki 1695107325SiwasakiImplemented ACPI 2.0B grammar change that disallows all Type 1 1696126372Snjland 1697126372Snjl2 opcodes outside of a control method. This means that the 1698114237Snjl"executable" operators (versus the "namespace" operators) cannot 1699114237Snjlbe used at the table level; they can only be used within a 1700126372Snjlcontrol 1701126372Snjlmethod. 1702107325Siwasaki 1703107325SiwasakiImplemented the restriction on the Scope() operator where the 1704107325Siwasakitarget must already exist in the namespace at the time the 1705114237Snjloperator is encountered (during ASL compilation). In other words, 1706114237Snjlforward references are not allowed and Scope() cannot create a 1707126372Snjlnew 1708126372Snjlobject. This makes the iASL compiler compatible with other ACPI 1709126372Snjlimplementations and makes the Scope() implementation adhere to 1710126372Snjlthe 1711126372SnjlACPI specification. 1712107325Siwasaki 1713107325SiwasakiFixed a problem where namepath optimization for the Alias 1714126372Snjloperator 1715126372Snjlwas optimizing the wrong path (of the two namepaths.) This 1716126372Snjlcaused 1717126372Snjla "Missing alias link" error message. 1718107325Siwasaki 1719114237SnjlFixed a problem where an "unknown reserved name" warning could be 1720114237Snjlincorrectly generated for names like "_SB" when the trailing 1721114237Snjlunderscore is not used in the original ASL. 1722107325Siwasaki 1723107325SiwasakiFixed a problem where the reserved name check did not handle 1724114237SnjlNamePaths with multiple NameSegs correctly. The first nameseg of 1725114237Snjlthe NamePath was examined instead of the last NameSeg. 1726107325Siwasaki 1727107325Siwasaki 1728107325Siwasaki---------------------------------------- 1729107325Siwasaki 1730104470Siwasaki02 October 2002. Summary of changes for this release. 1731104470Siwasaki 1732104470Siwasaki 1733104470Siwasaki1) ACPI CA Core Subsystem version 20021002: 1734104470Siwasaki 1735104470SiwasakiFixed a problem where a store/copy of a string to an existing 1736104470Siwasakistring did not always set the string length properly in the 1737126372SnjlString 1738126372Snjlobject. 1739104470Siwasaki 1740104470SiwasakiFixed a reported problem with the ToString operator where the 1741104470Siwasakibehavior was identical to the ToHexString operator instead of 1742126372Snjljust 1743126372Snjlsimply converting a raw buffer to a string data type. 1744104470Siwasaki 1745104470SiwasakiFixed a problem where CopyObject and the other "explicit" 1746104470Siwasakiconversion operators were not updating the internal namespace 1747126372Snjlnode 1748126372Snjltype as part of the store operation. 1749104470Siwasaki 1750104470SiwasakiFixed a memory leak during implicit source operand conversion 1751114237Snjlwhere the original object was not deleted if it was converted to 1752126372Snjla 1753126372Snjlnew object of a different type. 1754104470Siwasaki 1755104470SiwasakiEnhanced error messages for all problems associated with 1756126372Snjlnamespace 1757126372Snjllookups. Common procedure generates and prints the lookup name 1758126372Snjlas 1759126372Snjlwell as the formatted status. 1760104470Siwasaki 1761104470SiwasakiCompleted implementation of a new design for the Alias support 1762104470Siwasakiwithin the namespace. The existing design did not handle the 1763126372Snjlcase 1764126372Snjlwhere a new object was assigned to one of the two names due to 1765126372Snjlthe 1766126372Snjluse of an explicit conversion operator, resulting in the two 1767126372Snjlnames 1768126372Snjlpointing to two different objects. The new design simply points 1769126372Snjlthe Alias name to the original name node - not to the object. 1770126372SnjlThis results in a level of indirection that must be handled in 1771126372Snjlthe 1772126372Snjlname resolution mechanism. 1773104470Siwasaki 1774104470SiwasakiCode and Data Size: Current core subsystem library sizes are 1775126372Snjlshown 1776126372Snjlbelow. These are the code and data sizes for the acpica.lib 1777126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1778126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1779126372Snjlversion of the code includes the debug output trace mechanism and 1780126372Snjlhas a larger code and data size. Note that these values will 1781126372Snjlvary 1782126372Snjldepending on the efficiency of the compiler and the compiler 1783126372Snjloptions used during generation. 1784104470Siwasaki 1785104470Siwasaki Previous Release 1786104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 1787104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 1788104470Siwasaki Current Release: 1789104470Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 1790104470Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 1791104470Siwasaki 1792104470Siwasaki 1793104470Siwasaki2) Linux 1794104470Siwasaki 1795104470SiwasakiInitialize thermal driver's timer before it is used. (Knut 1796104470SiwasakiNeumann) 1797104470Siwasaki 1798104470SiwasakiAllow handling negative celsius values. (Kochi Takayoshi) 1799104470Siwasaki 1800114237SnjlFix thermal management and make trip points. R/W (Pavel Machek) 1801104470Siwasaki 1802104470SiwasakiFix /proc/acpi/sleep. (P. Christeas) 1803104470Siwasaki 1804104470SiwasakiIA64 fixes. (David Mosberger) 1805104470Siwasaki 1806104470SiwasakiFix reversed logic in blacklist code. (Sergio Monteiro Basto) 1807104470Siwasaki 1808104470SiwasakiReplace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik 1809104470SiwasakiBrodowski) 1810104470Siwasaki 1811104470Siwasaki 1812104470Siwasaki3) iASL Compiler/Disassembler 1813104470Siwasaki 1814104470SiwasakiClarified some warning/error messages. 1815104470Siwasaki 1816104470Siwasaki 1817104470Siwasaki---------------------------------------- 1818104470Siwasaki18 September 2002. Summary of changes for this release. 1819104470Siwasaki 1820104470Siwasaki 1821104470Siwasaki1) ACPI CA Core Subsystem version 20020918: 1822104470Siwasaki 1823114237SnjlFixed a reported problem with reference chaining (via the Index() 1824114237Snjland RefOf() operators) in the ObjectType() and SizeOf() 1825126372Snjloperators. 1826126372SnjlThe definition of these operators includes the dereferencing of 1827126372Snjlall chained references to return information on the base object. 1828104470Siwasaki 1829104470SiwasakiFixed a problem with stores to indexed package elements - the 1830104470Siwasakiexisting code would not complete the store if an "implicit 1831114237Snjlconversion" was not performed. In other words, if the existing 1832114237Snjlobject (package element) was to be replaced completely, the code 1833114237Snjldidn't handle this case. 1834104470Siwasaki 1835104470SiwasakiRelaxed typechecking on the ASL "Scope" operator to allow the 1836104470Siwasakitarget name to refer to an object of type Integer, String, or 1837104470SiwasakiBuffer, in addition to the scoping object types (Device, 1838104470Siwasakipredefined Scopes, Processor, PowerResource, and ThermalZone.) 1839114237SnjlThis allows existing AML code that has workarounds for a bug in 1840114237SnjlWindows to function properly. A warning is issued, however. 1841126372SnjlThis 1842126372Snjlaffects both the AML interpreter and the iASL compiler. Below is 1843126372Snjlan example of this type of ASL code: 1844104470Siwasaki 1845104470Siwasaki Name(DEB,0x00) 1846104470Siwasaki Scope(DEB) 1847104470Siwasaki { 1848104470Siwasaki 1849114237SnjlFixed some reported problems with 64-bit integer support in the 1850114237Snjllocal implementation of C library functions (clib.c) 1851104470Siwasaki 1852104470Siwasaki 1853104470Siwasaki2) Linux 1854104470Siwasaki 1855104470SiwasakiUse ACPI fix map region instead of IOAPIC region, since it is 1856104470Siwasakiundefined in non-SMP. 1857104470Siwasaki 1858114237SnjlEnsure that the SCI has the proper polarity and trigger, even on 1859114237Snjlsystems that do not have an interrupt override entry in the MADT. 1860104470Siwasaki 1861104470Siwasaki2.5 big driver reorganization (Pat Mochel) 1862104470Siwasaki 1863104470SiwasakiUse early table mapping code from acpitable.c (Andi Kleen) 1864104470Siwasaki 1865104470SiwasakiNew blacklist entries (Andi Kleen) 1866104470Siwasaki 1867114237SnjlBlacklist improvements. Split blacklist code out into a separate 1868114237Snjlfile. Move checking the blacklist to very early. Previously, we 1869114237Snjlwould use ACPI tables, and then halfway through init, check the 1870114237Snjlblacklist -- too late. Now, it's early enough to completely fall- 1871114237Snjlback to non-ACPI. 1872104470Siwasaki 1873104470Siwasaki 1874104470Siwasaki3) iASL Compiler/Disassembler version 20020918: 1875104470Siwasaki 1876114237SnjlFixed a problem where the typechecking code didn't know that an 1877114237Snjlalias could point to a method. In other words, aliases were not 1878114237Snjlbeing dereferenced during typechecking. 1879104470Siwasaki 1880104470Siwasaki 1881104470Siwasaki---------------------------------------- 1882104470Siwasaki29 August 2002. Summary of changes for this release. 1883104470Siwasaki 1884104470Siwasaki1) ACPI CA Core Subsystem Version 20020829: 1885104470Siwasaki 1886114237SnjlIf the target of a Scope() operator already exists, it must be an 1887114237Snjlobject type that actually opens a scope -- such as a Device, 1888114237SnjlMethod, Scope, etc. This is a fatal runtime error. Similar 1889126372Snjlerror 1890126372Snjlcheck has been added to the iASL compiler also. 1891104470Siwasaki 1892114237SnjlTightened up the namespace load to disallow multiple names in the 1893114237Snjlsame scope. This previously was allowed if both objects were of 1894114237Snjlthe same type. (i.e., a lookup was the same as entering a new 1895114237Snjlname). 1896104470Siwasaki 1897104470Siwasaki 1898104470Siwasaki2) Linux 1899104470Siwasaki 1900104470SiwasakiEnsure that the ACPI interrupt has the proper trigger and 1901104470Siwasakipolarity. 1902104470Siwasaki 1903104470Siwasakilocal_irq_disable is extraneous. (Matthew Wilcox) 1904104470Siwasaki 1905104470SiwasakiMake "acpi=off" actually do what it says, and not use the ACPI 1906104470Siwasakiinterpreter *or* the tables. 1907104470Siwasaki 1908104470SiwasakiAdded arch-neutral support for parsing SLIT and SRAT tables 1909126372Snjl(Kochi 1910126372SnjlTakayoshi) 1911104470Siwasaki 1912104470Siwasaki 1913104470Siwasaki3) iASL Compiler/Disassembler Version 20020829: 1914104470Siwasaki 1915104470SiwasakiImplemented namepath optimization for name declarations. For 1916104470Siwasakiexample, a declaration like "Method (\_SB_.ABCD)" would get 1917104470Siwasakioptimized to "Method (ABCD)" if the declaration is within the 1918104470Siwasaki\_SB_ scope. This optimization is in addition to the named 1919104470Siwasakireference path optimization first released in the previous 1920114237Snjlversion. This would seem to complete all possible optimizations 1921114237Snjlfor namepaths within the ASL/AML. 1922104470Siwasaki 1923114237SnjlIf the target of a Scope() operator already exists, it must be an 1924114237Snjlobject type that actually opens a scope -- such as a Device, 1925114237SnjlMethod, Scope, etc. 1926104470Siwasaki 1927114237SnjlImplemented a check and warning for unreachable code in the same 1928114237Snjlblock below a Return() statement. 1929104470Siwasaki 1930114237SnjlFixed a problem where the listing file was not generated if the 1931114237Snjlcompiler aborted if the maximum error count was exceeded (200). 1932104470Siwasaki 1933104470SiwasakiFixed a problem where the typechecking of method return values 1934126372Snjlwas 1935126372Snjlbroken. This includes the check for a return value when the 1936114237Snjlmethod is invoked as a TermArg (a return value is expected.) 1937104470Siwasaki 1938104470SiwasakiFixed a reported problem where EOF conditions during a quoted 1939104470Siwasakistring or comment caused a fault. 1940104470Siwasaki 1941104470Siwasaki 1942104470Siwasaki---------------------------------------- 1943102550Siwasaki15 August 2002. Summary of changes for this release. 1944102550Siwasaki 1945102550Siwasaki1) ACPI CA Core Subsystem Version 20020815: 1946102550Siwasaki 1947114237SnjlFixed a reported problem where a Store to a method argument that 1948114237Snjlcontains a reference did not perform the indirect store 1949126372Snjlcorrectly. 1950126372SnjlThis problem was created during the conversion to the new 1951126372Snjlreference object model - the indirect store to a method argument 1952126372Snjlcode was not updated to reflect the new model. 1953102550Siwasaki 1954114237SnjlReworked the ACPI mode change code to better conform to ACPI 2.0, 1955114237Snjlhandle corner cases, and improve code legibility (Kochi 1956102550SiwasakiTakayoshi) 1957102550Siwasaki 1958102550SiwasakiFixed a problem with the pathname parsing for the carat (^) 1959114237Snjlprefix. The heavy use of the carat operator by the new namepath 1960114237Snjloptimization in the iASL compiler uncovered a problem with the 1961126372SnjlAML 1962126372Snjlinterpreter handling of this prefix. In the case where one or 1963126372Snjlmore carats precede a single nameseg, the nameseg was treated as 1964126372Snjlstandalone and the search rule (to root) was inadvertently 1965114237Snjlapplied. This could cause both the iASL compiler and the 1966114237Snjlinterpreter to find the wrong object or to miss the error that 1967114237Snjlshould occur if the object does not exist at that exact pathname. 1968102550Siwasaki 1969114237SnjlFound and fixed the problem where the HP Pavilion DSDT would not 1970114237Snjlload. This was a relatively minor tweak to the table loading 1971126372Snjlcode 1972126372Snjl(a problem caused by the unexpected encounter with a method 1973114237Snjlinvocation not within a control method), but it does not solve 1974126372Snjlthe 1975126372Snjloverall issue of the execution of AML code at the table level. 1976126372SnjlThis investigation is still ongoing. 1977102550Siwasaki 1978102550SiwasakiCode and Data Size: Current core subsystem library sizes are 1979126372Snjlshown 1980126372Snjlbelow. These are the code and data sizes for the acpica.lib 1981126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 1982126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 1983126372Snjlversion of the code includes the debug output trace mechanism and 1984126372Snjlhas a larger code and data size. Note that these values will 1985126372Snjlvary 1986126372Snjldepending on the efficiency of the compiler and the compiler 1987126372Snjloptions used during generation. 1988102550Siwasaki 1989102550Siwasaki Previous Release 1990104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 1991104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 1992102550Siwasaki Current Release: 1993104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 1994104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 1995102550Siwasaki 1996102550Siwasaki 1997102550Siwasaki2) Linux 1998102550Siwasaki 1999102550SiwasakiRemove redundant slab.h include (Brad Hards) 2000102550Siwasaki 2001102550SiwasakiFix several bugs in thermal.c (Herbert Nachtnebel) 2002102550Siwasaki 2003102550SiwasakiMake CONFIG_ACPI_BOOT work properly (Pavel Machek) 2004102550Siwasaki 2005104470SiwasakiChange acpi_system_suspend to use updated irq functions (Pavel 2006104470SiwasakiMachek) 2007102550Siwasaki 2008102550SiwasakiExport acpi_get_firmware_table (Matthew Wilcox) 2009102550Siwasaki 2010102550SiwasakiUse proper root proc entry for ACPI (Kochi Takayoshi) 2011102550Siwasaki 2012102550SiwasakiFix early-boot table parsing (Bjorn Helgaas) 2013102550Siwasaki 2014102550Siwasaki 2015102550Siwasaki3) iASL Compiler/Disassembler 2016102550Siwasaki 2017114237SnjlReworked the compiler options to make them more consistent and to 2018114237Snjluse two-letter options where appropriate. We were running out of 2019114237Snjlsensible letters. This may break some makefiles, so check the 2020114237Snjlcurrent options list by invoking the compiler with no parameters. 2021102550Siwasaki 2022102550SiwasakiCompleted the design and implementation of the ASL namepath 2023114237Snjloptimization option for the compiler. This option optimizes all 2024114237Snjlreferences to named objects to the shortest possible path. The 2025114237Snjlfirst attempt tries to utilize a single nameseg (4 characters) 2026126372Snjland 2027126372Snjlthe "search-to-root" algorithm used by the interpreter. If that 2028126372Snjlcannot be used (because either the name is not in the search path 2029126372Snjlor there is a conflict with another object with the same name), 2030126372Snjlthe pathname is optimized using the carat prefix (usually a 2031126372Snjlshorter string than specifying the entire path from the root.) 2032102550Siwasaki 2033114237SnjlImplemented support to obtain the DSDT from the Windows registry 2034114237Snjl(when the disassembly option is specified with no input file). 2035114237SnjlAdded this code as the implementation for AcpiOsTableOverride in 2036114237Snjlthe Windows OSL. Migrated the 16-bit code (used in the AcpiDump 2037114237Snjlutility) to scan memory for the DSDT to the AcpiOsTableOverride 2038114237Snjlfunction in the DOS OSL to make the disassembler truly OS 2039114237Snjlindependent. 2040102550Siwasaki 2041114237SnjlImplemented a new option to disassemble and compile in one step. 2042114237SnjlWhen used without an input filename, this option will grab the 2043114237SnjlDSDT from the local machine, disassemble it, and compile it in 2044126372Snjlone 2045126372Snjlstep. 2046102550Siwasaki 2047114237SnjlAdded a warning message for invalid escapes (a backslash followed 2048114237Snjlby any character other than the allowable escapes). This catches 2049114237Snjlthe quoted string error "\_SB_" (which should be "\\_SB_" ). 2050114237SnjlAlso, there are numerous instances in the ACPI specification 2051126372Snjlwhere 2052126372Snjlthis error occurs. 2053102550Siwasaki 2054104470SiwasakiAdded a compiler option to disable all optimizations. This is 2055114237Snjlbasically the "compatibility mode" because by using this option, 2056114237Snjlthe AML code will come out exactly the same as other ASL 2057114237Snjlcompilers. 2058102550Siwasaki 2059114237SnjlAdded error messages for incorrectly ordered dependent resource 2060114237Snjlfunctions. This includes: missing EndDependentFn macro at end of 2061114237Snjldependent resource list, nested dependent function macros (both 2062114237Snjlstart and end), and missing StartDependentFn macro. These are 2063114237Snjlcommon errors that should be caught at compile time. 2064102550Siwasaki 2065114237SnjlImplemented _OSI support for the disassembler and compiler. _OSI 2066114237Snjlmust be included in the namespace for proper disassembly (because 2067114237Snjlthe disassembler must know the number of arguments.) 2068102550Siwasaki 2069104470SiwasakiAdded an "optimization" message type that is optional (off by 2070114237Snjldefault). This message is used for all optimizations - including 2071114237Snjlconstant folding, integer optimization, and namepath 2072104470Siwasakioptimization. 2073102550Siwasaki 2074102550Siwasaki---------------------------------------- 2075102550Siwasaki25 July 2002. Summary of changes for this release. 2076102550Siwasaki 2077102550Siwasaki 2078102550Siwasaki1) ACPI CA Core Subsystem Version 20020725: 2079102550Siwasaki 2080114237SnjlThe AML Disassembler has been enhanced to produce compilable ASL 2081114237Snjlcode and has been integrated into the iASL compiler (see below) 2082126372Snjlas 2083126372Snjlwell as the single-step disassembly for the AML debugger and the 2084126372Snjldisassembler for the AcpiDump utility. All ACPI 2.0A opcodes, 2085126372Snjlresource templates and macros are fully supported. The 2086114237Snjldisassembler has been tested on over 30 different AML files, 2087114237Snjlproducing identical AML when the resulting disassembled ASL file 2088114237Snjlis recompiled with the same ASL compiler. 2089102550Siwasaki 2090114237SnjlModified the Resource Manager to allow zero interrupts and zero 2091114237Snjldma channels during the GetCurrentResources call. This was 2092114237Snjlcausing problems on some platforms. 2093102550Siwasaki 2094114237SnjlAdded the AcpiOsRedirectOutput interface to the OSL to simplify 2095114237Snjloutput redirection for the AcpiOsPrintf and AcpiOsVprintf 2096114237Snjlinterfaces. 2097102550Siwasaki 2098102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2099126372Snjlshown 2100126372Snjlbelow. These are the code and data sizes for the acpica.lib 2101126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2102126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 2103126372Snjlversion of the code includes the debug output trace mechanism and 2104126372Snjlhas a larger code and data size. Note that these values will 2105126372Snjlvary 2106126372Snjldepending on the efficiency of the compiler and the compiler 2107126372Snjloptions used during generation. 2108102550Siwasaki 2109102550Siwasaki Previous Release 2110104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 2111104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 2112102550Siwasaki Current Release: 2113104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 2114104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 2115102550Siwasaki 2116102550Siwasaki 2117102550Siwasaki2) Linux 2118102550Siwasaki 2119102550SiwasakiFixed a panic in the EC driver (Dominik Brodowski) 2120102550Siwasaki 2121114237SnjlImplemented checksum of the R/XSDT itself during Linux table scan 2122114237Snjl(Richard Schaal) 2123102550Siwasaki 2124102550Siwasaki 2125102550Siwasaki3) iASL compiler 2126102550Siwasaki 2127114237SnjlThe AML disassembler is integrated into the compiler. The "-d" 2128114237Snjloption invokes the disassembler to completely disassemble an 2129114237Snjlinput AML file, producing as output a text ASL file with the 2130114237Snjlextension ".dsl" (to avoid name collisions with existing .asl 2131114237Snjlsource files.) A future enhancement will allow the disassembler 2132114237Snjlto obtain the BIOS DSDT from the registry under Windows. 2133102550Siwasaki 2134102550SiwasakiFixed a problem with the VendorShort and VendorLong resource 2135102550Siwasakidescriptors where an invalid AML sequence was created. 2136102550Siwasaki 2137114237SnjlImplemented a fix for BufferData term in the ASL parser. It was 2138114237Snjlinadvertently defined twice, allowing invalid syntax to pass and 2139114237Snjlcausing reduction conflicts. 2140102550Siwasaki 2141104470SiwasakiFixed a problem where the Ones opcode could get converted to a 2142104470Siwasakivalue of zero if "Ones" was used where a byte, word or dword 2143126372Snjlvalue 2144126372Snjlwas expected. The 64-bit value is now truncated to the correct 2145126372Snjlsize with the correct value. 2146102550Siwasaki 2147102550Siwasaki 2148102550Siwasaki---------------------------------------- 2149102550Siwasaki02 July 2002. Summary of changes for this release. 2150102550Siwasaki 2151102550Siwasaki 2152102550Siwasaki1) ACPI CA Core Subsystem Version 20020702: 2153102550Siwasaki 2154114237SnjlThe Table Manager code has been restructured to add several new 2155114237Snjlfeatures. Tables that are not required by the core subsystem 2156114237Snjl(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer 2157114237Snjlvalidated in any way and are returned from AcpiGetFirmwareTable 2158126372Snjlif 2159126372Snjlrequested. The AcpiOsTableOverride interface is now called for 2160126372Snjleach table that is loaded by the subsystem in order to allow the 2161126372Snjlhost to override any table it chooses. Previously, only the DSDT 2162126372Snjlcould be overridden. Added one new files, tbrsdt.c and 2163114237Snjltbgetall.c. 2164102550Siwasaki 2165114237SnjlFixed a problem with the conversion of internal package objects 2166126372Snjlto 2167126372Snjlexternal objects (when a package is returned from a control 2168114237Snjlmethod.) The return buffer length was set to zero instead of the 2169114237Snjlproper length of the package object. 2170102550Siwasaki 2171104470SiwasakiFixed a reported problem with the use of the RefOf and DeRefOf 2172114237Snjloperators when passing reference arguments to control methods. A 2173114237Snjlnew type of Reference object is used internally for references 2174114237Snjlproduced by the RefOf operator. 2175102550Siwasaki 2176102550SiwasakiAdded additional error messages in the Resource Manager to 2177126372Snjlexplain 2178126372SnjlAE_BAD_DATA errors when they occur during resource parsing. 2179102550Siwasaki 2180104470SiwasakiSplit the AcpiEnableSubsystem into two primitives to enable a 2181104470Siwasakifiner granularity initialization sequence. These two calls 2182126372Snjlshould 2183126372Snjlbe called in this order: AcpiEnableSubsystem (flags), 2184114237SnjlAcpiInitializeObjects (flags). The flags parameter remains the 2185114237Snjlsame. 2186102550Siwasaki 2187102550Siwasaki 2188102550Siwasaki2) Linux 2189102550Siwasaki 2190114237SnjlUpdated the ACPI utilities module to understand the new style of 2191114237Snjlfully resolved package objects that are now returned from the 2192126372Snjlcore 2193126372Snjlsubsystem. This eliminates errors of the form: 2194102550Siwasaki 2195102550Siwasaki ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT] 2196102550Siwasaki acpi_utils-0430 [145] acpi_evaluate_reference: 2197102550Siwasaki Invalid element in package (not a device reference) 2198102550Siwasaki 2199102550SiwasakiThe method evaluation utility uses the new buffer allocation 2200102550Siwasakischeme instead of calling AcpiEvaluate Object twice. 2201102550Siwasaki 2202102550SiwasakiAdded support for ECDT. This allows the use of the Embedded 2203114237SnjlController before the namespace has been fully initialized, which 2204114237Snjlis necessary for ACPI 2.0 support, and for some laptops to 2205114237Snjlinitialize properly. (Laptops using ECDT are still rare, so only 2206114237Snjllimited testing was performed of the added functionality.) 2207102550Siwasaki 2208102550SiwasakiFixed memory leaks in the EC driver. 2209102550Siwasaki 2210102550SiwasakiEliminated a brittle code structure in acpi_bus_init(). 2211102550Siwasaki 2212114237SnjlEliminated the acpi_evaluate() helper function in utils.c. It is 2213114237Snjlno longer needed since acpi_evaluate_object can optionally 2214104470Siwasakiallocate memory for the return object. 2215102550Siwasaki 2216114237SnjlImplemented fix for keyboard hang when getting battery readings 2217126372Snjlon 2218126372Snjlsome systems (Stephen White) 2219102550Siwasaki 2220102550SiwasakiPCI IRQ routing update (Dominik Brodowski) 2221102550Siwasaki 2222114237SnjlFix an ifdef to allow compilation on UP with LAPIC but no IOAPIC 2223114237Snjlsupport 2224102550Siwasaki 2225102550Siwasaki---------------------------------------- 2226102550Siwasaki11 June 2002. Summary of changes for this release. 2227102550Siwasaki 2228102550Siwasaki 2229102550Siwasaki1) ACPI CA Core Subsystem Version 20020611: 2230102550Siwasaki 2231104470SiwasakiFixed a reported problem where constants such as Zero and One 2232114237Snjlappearing within _PRT packages were not handled correctly within 2233114237Snjlthe resource manager code. Originally reported against the ASL 2234114237Snjlcompiler because the code generator now optimizes integers to 2235114237Snjltheir minimal AML representation (i.e. AML constants if 2236126372Snjlpossible.) 2237126372SnjlThe _PRT code now handles all AML constant opcodes correctly 2238126372Snjl(Zero, One, Ones, Revision). 2239102550Siwasaki 2240102550SiwasakiFixed a problem with the Concatenate operator in the AML 2241114237Snjlinterpreter where a buffer result object was incorrectly marked 2242126372Snjlas 2243126372Snjlnot fully evaluated, causing a run-time error of AE_AML_INTERNAL. 2244102550Siwasaki 2245104470SiwasakiAll package sub-objects are now fully resolved before they are 2246114237Snjlreturned from the external ACPI interfaces. This means that name 2247114237Snjlstrings are resolved to object handles, and constant operators 2248114237Snjl(Zero, One, Ones, Revision) are resolved to Integers. 2249102550Siwasaki 2250102550SiwasakiImplemented immediate resolution of the AML Constant opcodes 2251104470Siwasaki(Zero, One, Ones, Revision) to Integer objects upon detection 2252104470Siwasakiwithin the AML stream. This has simplified and reduced the 2253104470Siwasakigenerated code size of the subsystem by eliminating about 10 2254104470Siwasakiswitch statements for these constants (which previously were 2255104470Siwasakicontained in Reference objects.) The complicating issues are 2256126372Snjlthat 2257126372Snjlthe Zero opcode is used as a "placeholder" for unspecified 2258114237Snjloptional target operands and stores to constants are defined to 2259126372Snjlbe 2260126372Snjlno-ops. 2261102550Siwasaki 2262102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2263126372Snjlshown 2264126372Snjlbelow. These are the code and data sizes for the acpica.lib 2265114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2266114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 2267114237Snjlversion of the code includes the debug output trace mechanism and 2268114237Snjlhas a larger code and data size. Note that these values will 2269126372Snjlvary 2270126372Snjldepending on the efficiency of the compiler and the compiler 2271114237Snjloptions used during generation. 2272102550Siwasaki 2273102550Siwasaki Previous Release 2274104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 2275104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 2276102550Siwasaki Current Release: 2277104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 2278104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 2279102550Siwasaki 2280102550Siwasaki 2281102550Siwasaki2) Linux 2282102550Siwasaki 2283104470SiwasakiAdded preliminary support for obtaining _TRA data for PCI root 2284104470Siwasakibridges (Bjorn Helgaas). 2285102550Siwasaki 2286102550Siwasaki 2287102550Siwasaki3) iASL Compiler Version X2046: 2288102550Siwasaki 2289114237SnjlFixed a problem where the "_DDN" reserved name was defined to be 2290126372Snjla 2291126372Snjlcontrol method with one argument. There are no arguments, and 2292114237Snjl_DDN does not have to be a control method. 2293102550Siwasaki 2294114237SnjlFixed a problem with the Linux version of the compiler where the 2295114237Snjlsource lines printed with error messages were the wrong lines. 2296114237SnjlThis turned out to be the "LF versus CR/LF" difference between 2297114237SnjlWindows and Unix. This appears to be the longstanding issue 2298114237Snjlconcerning listing output and error messages. 2299102550Siwasaki 2300114237SnjlFixed a problem with the Linux version of compiler where opcode 2301114237Snjlnames within error messages were wrong. This was caused by a 2302114237Snjlslight difference in the output of the Flex tool on Linux versus 2303114237SnjlWindows. 2304102550Siwasaki 2305102550SiwasakiFixed a problem with the Linux compiler where the hex output 2306126372Snjlfiles 2307126372Snjlcontained some garbage data caused by an internal buffer overrun. 2308102550Siwasaki 2309102550Siwasaki 2310102550Siwasaki---------------------------------------- 2311102550Siwasaki17 May 2002. Summary of changes for this release. 2312102550Siwasaki 2313102550Siwasaki 2314102550Siwasaki1) ACPI CA Core Subsystem Version 20020517: 2315102550Siwasaki 2316102550SiwasakiImplemented a workaround to an BIOS bug discovered on the HP 2317104470SiwasakiOmniBook where the FADT revision number and the table size are 2318104470Siwasakiinconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The 2319126372Snjlnew 2320126372Snjlbehavior is to fallback to using only the ACPI 1.0 fields of the 2321126372SnjlFADT if the table is too small to be a ACPI 2.0 table as claimed 2322126372Snjlby the revision number. Although this is a BIOS bug, this is a 2323126372Snjlcase where the workaround is simple enough and with no side 2324126372Snjleffects, so it seemed prudent to add it. A warning message is 2325126372Snjlissued, however. 2326102550Siwasaki 2327114237SnjlImplemented minimum size checks for the fixed-length ACPI tables 2328126372Snjl- 2329126372Snjl- the FADT and FACS, as well as consistency checks between the 2330114237Snjlrevision number and the table size. 2331102550Siwasaki 2332114237SnjlFixed a reported problem in the table override support where the 2333114237Snjlnew table pointer was incorrectly treated as a physical address 2334114237Snjlinstead of a logical address. 2335102550Siwasaki 2336114237SnjlEliminated the use of the AE_AML_ERROR exception and replaced it 2337114237Snjlwith more descriptive codes. 2338102550Siwasaki 2339104470SiwasakiFixed a problem where an exception would occur if an ASL Field 2340126372Snjlwas 2341126372Snjldefined with no named Field Units underneath it (used by some 2342114237Snjlindex fields). 2343102550Siwasaki 2344102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2345126372Snjlshown 2346126372Snjlbelow. These are the code and data sizes for the acpica.lib 2347126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2348126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 2349126372Snjlversion of the code includes the debug output trace mechanism and 2350126372Snjlhas a larger code and data size. Note that these values will 2351126372Snjlvary 2352126372Snjldepending on the efficiency of the compiler and the compiler 2353126372Snjloptions used during generation. 2354102550Siwasaki 2355102550Siwasaki Previous Release 2356104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 2357104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 2358102550Siwasaki Current Release: 2359104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 2360104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 2361102550Siwasaki 2362102550Siwasaki 2363102550Siwasaki 2364102550Siwasaki2) Linux 2365102550Siwasaki 2366114237SnjlMuch work done on ACPI init (MADT and PCI IRQ routing support). 2367114237Snjl(Paul D. and Dominik Brodowski) 2368102550Siwasaki 2369102550SiwasakiFix PCI IRQ-related panic on boot (Sam Revitch) 2370102550Siwasaki 2371102550SiwasakiSet BM_ARB_DIS when entering a sleep state (Ducrot Bruno) 2372102550Siwasaki 2373102550SiwasakiFix "MHz" typo (Dominik Brodowski) 2374102550Siwasaki 2375102550SiwasakiFix RTC year 2000 issue (Dominik Brodowski) 2376102550Siwasaki 2377102550SiwasakiPreclude multiple button proc entries (Eric Brunet) 2378102550Siwasaki 2379102550SiwasakiMoved arch-specific code out of include/platform/aclinux.h 2380102550Siwasaki 2381102550Siwasaki3) iASL Compiler Version X2044: 2382102550Siwasaki 2383102550SiwasakiImplemented error checking for the string used in the EISAID 2384126372Snjlmacro 2385126372Snjl(Usually used in the definition of the _HID object.) The code 2386126372Snjlnow 2387126372Snjlstrictly enforces the PnP format - exactly 7 characters, 3 2388126372Snjluppercase letters and 4 hex digits. 2389102550Siwasaki 2390102550SiwasakiIf a raw string is used in the definition of the _HID object 2391102550Siwasaki(instead of the EISAID macro), the string must contain all 2392114237Snjlalphanumeric characters (e.g., "*PNP0011" is not allowed because 2393114237Snjlof the asterisk.) 2394102550Siwasaki 2395114237SnjlImplemented checking for invalid use of ACPI reserved names for 2396114237Snjlmost of the name creation operators (Name, Device, Event, Mutex, 2397114237SnjlOperationRegion, PowerResource, Processor, and ThermalZone.) 2398114237SnjlPreviously, this check was only performed for control methods. 2399102550Siwasaki 2400114237SnjlImplemented an additional check on the Name operator to emit an 2401114237Snjlerror if a reserved name that must be implemented in ASL as a 2402114237Snjlcontrol method is used. We know that a reserved name must be a 2403114237Snjlmethod if it is defined with input arguments. 2404102550Siwasaki 2405102550SiwasakiThe warning emitted when a namespace object reference is not 2406126372Snjlfound 2407126372Snjlduring the cross reference phase has been changed into an error. 2408126372SnjlThe "External" directive should be used for names defined in 2409126372Snjlother 2410126372Snjlmodules. 2411102550Siwasaki 2412102550Siwasaki 2413102550Siwasaki4) Tools and Utilities 2414102550Siwasaki 2415114237SnjlThe 16-bit tools (adump16 and aexec16) have been regenerated and 2416114237Snjltested. 2417102550Siwasaki 2418102550SiwasakiFixed a problem with the output of both acpidump and adump16 2419126372Snjlwhere 2420126372Snjlthe indentation of closing parentheses and brackets was not 2421114237Snjlaligned properly with the parent block. 2422102550Siwasaki 2423102550Siwasaki 2424102550Siwasaki---------------------------------------- 2425102550Siwasaki03 May 2002. Summary of changes for this release. 2426102550Siwasaki 2427102550Siwasaki 2428102550Siwasaki1) ACPI CA Core Subsystem Version 20020503: 2429102550Siwasaki 2430114237SnjlAdded support a new OSL interface that allows the host operating 2431114237Snjlsystem software to override the DSDT found in the firmware - 2432114237SnjlAcpiOsTableOverride. With this interface, the OSL can examine 2433126372Snjlthe 2434126372Snjlversion of the firmware DSDT and replace it with a different one 2435126372Snjlif desired. 2436102550Siwasaki 2437114237SnjlAdded new external interfaces for accessing ACPI registers from 2438114237Snjldevice drivers and other system software - AcpiGetRegister and 2439114237SnjlAcpiSetRegister. This was simply an externalization of the 2440114237Snjlexisting AcpiHwBitRegister interfaces. 2441102550Siwasaki 2442104470SiwasakiFixed a regression introduced in the previous build where the 2443104470SiwasakiASL/AML CreateField operator always returned an error, 2444102550Siwasaki"destination must be a NS Node". 2445102550Siwasaki 2446114237SnjlExtended the maximum time (before failure) to successfully enable 2447114237SnjlACPI mode to 3 seconds. 2448102550Siwasaki 2449102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2450126372Snjlshown 2451126372Snjlbelow. These are the code and data sizes for the acpica.lib 2452126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2453126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 2454126372Snjlversion of the code includes the debug output trace mechanism and 2455126372Snjlhas a larger code and data size. Note that these values will 2456126372Snjlvary 2457126372Snjldepending on the efficiency of the compiler and the compiler 2458126372Snjloptions used during generation. 2459102550Siwasaki 2460102550Siwasaki Previous Release 2461104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 2462104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 2463102550Siwasaki Current Release: 2464104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 2465104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 2466102550Siwasaki 2467102550Siwasaki 2468102550Siwasaki2) Linux 2469102550Siwasaki 2470104470SiwasakiEnhanced ACPI init code for SMP. We are now fully MPS and $PIR- 2471104470Siwasakifree. While 3 out of 4 of our in-house systems work fine, the 2472126372Snjllast 2473126372Snjlone still hangs when testing the LAPIC timer. 2474102550Siwasaki 2475114237SnjlRenamed many files in 2.5 kernel release to omit "acpi_" from the 2476114237Snjlname. 2477102550Siwasaki 2478102550SiwasakiAdded warning on boot for Presario 711FR. 2479102550Siwasaki 2480102550SiwasakiSleep improvements (Pavel Machek) 2481102550Siwasaki 2482102550SiwasakiACPI can now be built without CONFIG_PCI enabled. 2483102550Siwasaki 2484102550SiwasakiIA64: Fixed memory map functions (JI Lee) 2485102550Siwasaki 2486102550Siwasaki 2487102550Siwasaki3) iASL Compiler Version X2043: 2488102550Siwasaki 2489114237SnjlAdded support to allow the compiler to be integrated into the MS 2490114237SnjlVC++ development environment for one-button compilation of single 2491114237Snjlfiles or entire projects -- with error-to-source-line mapping. 2492102550Siwasaki 2493104470SiwasakiImplemented support for compile-time constant folding for the 2494104470SiwasakiType3, Type4, and Type5 opcodes first defined in the ACPI 2.0 2495104470Siwasakispecification. This allows the ASL writer to use expressions 2496104470Siwasakiinstead of Integer/Buffer/String constants in terms that must 2497114237Snjlevaluate to constants at compile time and will also simplify the 2498114237Snjlemitted AML in any such sub-expressions that can be folded 2499104470Siwasaki(evaluated at compile-time.) This increases the size of the 2500104470Siwasakicompiler significantly because a portion of the ACPI CA AML 2501104470Siwasakiinterpreter is included within the compiler in order to pre- 2502104470Siwasakievaluate constant expressions. 2503102550Siwasaki 2504114237Snjl 2505102550SiwasakiFixed a problem with the "Unicode" ASL macro that caused the 2506114237Snjlcompiler to fault. (This macro is used in conjunction with the 2507114237Snjl_STR reserved name.) 2508102550Siwasaki 2509114237SnjlImplemented an AML opcode optimization to use the Zero, One, and 2510114237SnjlOnes opcodes where possible to further reduce the size of integer 2511114237Snjlconstants and thus reduce the overall size of the generated AML 2512114237Snjlcode. 2513102550Siwasaki 2514102550SiwasakiImplemented error checking for new reserved terms for ACPI 2515126372Snjlversion 2516126372Snjl2.0A. 2517102550Siwasaki 2518104470SiwasakiImplemented the -qr option to display the current list of ACPI 2519104470Siwasakireserved names known to the compiler. 2520102550Siwasaki 2521104470SiwasakiImplemented the -qc option to display the current list of ASL 2522104470Siwasakioperators that are allowed within constant expressions and can 2523104470Siwasakitherefore be folded at compile time if the operands are 2524104470Siwasakiconstants. 2525102550Siwasaki 2526102550Siwasaki 2527102550Siwasaki4) Documentation 2528102550Siwasaki 2529102550SiwasakiUpdated the Programmer's Reference for new interfaces, data 2530126372Snjltypes, 2531126372Snjland memory allocation model options. 2532102550Siwasaki 2533114237SnjlUpdated the iASL Compiler User Reference to apply new format and 2534114237Snjladd information about new features and options. 2535102550Siwasaki 2536102550Siwasaki---------------------------------------- 2537102550Siwasaki19 April 2002. Summary of changes for this release. 2538102550Siwasaki 2539102550Siwasaki1) ACPI CA Core Subsystem Version 20020419: 2540102550Siwasaki 2541114237SnjlThe source code base for the Core Subsystem has been completely 2542114237Snjlcleaned with PC-lint (FlexLint) for both 32-bit and 64-bit 2543114237Snjlversions. The Lint option files used are included in the 2544114237Snjl/acpi/generate/lint directory. 2545102550Siwasaki 2546102550SiwasakiImplemented enhanced status/error checking across the entire 2547114237SnjlHardware manager subsystem. Any hardware errors (reported from 2548114237Snjlthe OSL) are now bubbled up and will abort a running control 2549114237Snjlmethod. 2550102550Siwasaki 2551114237SnjlFixed a problem where the per-ACPI-table integer width (32 or 64) 2552114237Snjlwas stored only with control method nodes, causing a fault when 2553114237Snjlnon-control method code was executed during table loading. The 2554114237Snjlsolution implemented uses a global variable to indicate table 2555114237Snjlwidth across the entire ACPI subsystem. Therefore, ACPI CA does 2556114237Snjlnot support mixed integer widths across different ACPI tables 2557114237Snjl(DSDT, SSDT). 2558102550Siwasaki 2559114237SnjlFixed a problem where NULL extended fields (X fields) in an ACPI 2560114237Snjl2.0 ACPI FADT caused the table load to fail. Although the 2561114237Snjlexisting ACPI specification is a bit fuzzy on this topic, the new 2562114237Snjlbehavior is to fall back on a ACPI 1.0 field if the corresponding 2563114237SnjlACPI 2.0 X field is zero (even though the table revision 2564126372Snjlindicates 2565126372Snjla full ACPI 2.0 table.) The ACPI specification will be updated 2566126372Snjlto 2567126372Snjlclarify this issue. 2568102550Siwasaki 2569104470SiwasakiFixed a problem with the SystemMemory operation region handler 2570104470Siwasakiwhere memory was always accessed byte-wise even if the AML- 2571104470Siwasakispecified access width was larger than a byte. This caused 2572104470Siwasakiproblems on systems with memory-mapped I/O. Memory is now 2573104470Siwasakiaccessed with the width specified. On systems that do not 2574126372Snjlsupport 2575126372Snjlnon-aligned transfers, a check is made to guarantee proper 2576126372Snjladdress 2577126372Snjlalignment before proceeding in order to avoid an AML-caused 2578126372Snjlalignment fault within the kernel. 2579102550Siwasaki 2580102550Siwasaki 2581114237SnjlFixed a problem with the ExtendedIrq resource where only one byte 2582114237Snjlof the 4-byte Irq field was extracted. 2583102550Siwasaki 2584114237SnjlFixed the AcpiExDigitsNeeded() procedure to support _UID. This 2585114237Snjlfunction was out of date and required a rewrite. 2586114237Snjl 2587102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2588126372Snjlshown 2589126372Snjlbelow. These are the code and data sizes for the acpica.lib 2590126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2591126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 2592126372Snjlversion of the code includes the debug output trace mechanism and 2593126372Snjlhas a larger code and data size. Note that these values will 2594126372Snjlvary 2595126372Snjldepending on the efficiency of the compiler and the compiler 2596126372Snjloptions used during generation. 2597102550Siwasaki 2598102550Siwasaki Previous Release 2599104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 2600104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 2601102550Siwasaki Current Release: 2602104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 2603104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 2604102550Siwasaki 2605102550Siwasaki 2606102550Siwasaki2) Linux 2607102550Siwasaki 2608102550SiwasakiPCI IRQ routing fixes (Dominik Brodowski) 2609102550Siwasaki 2610102550Siwasaki 2611102550Siwasaki3) iASL Compiler Version X2042: 2612102550Siwasaki 2613104470SiwasakiImplemented an additional compile-time error check for a field 2614104470Siwasakiunit whose size + minimum access width would cause a run-time 2615114237Snjlaccess beyond the end-of-region. Previously, only the field size 2616114237Snjlitself was checked. 2617102550Siwasaki 2618104470SiwasakiThe Core subsystem and iASL compiler now share a common parse 2619104470Siwasakiobject in preparation for compile-time evaluation of the type 2620104470Siwasaki3/4/5 ASL operators. 2621102550Siwasaki 2622102550Siwasaki 2623102550Siwasaki---------------------------------------- 2624102550SiwasakiSummary of changes for this release: 03_29_02 2625102550Siwasaki 2626102550Siwasaki1) ACPI CA Core Subsystem Version 20020329: 2627102550Siwasaki 2628104470SiwasakiImplemented support for late evaluation of TermArg operands to 2629114237SnjlBuffer and Package objects. This allows complex expressions to 2630126372Snjlbe 2631126372Snjlused in the declarations of these object types. 2632102550Siwasaki 2633104470SiwasakiFixed an ACPI 1.0 compatibility issue when reading Fields. In 2634126372SnjlACPI 2635126372Snjl1.0, if the field was larger than 32 bits, it was returned as a 2636126372Snjlbuffer - otherwise it was returned as an integer. In ACPI 2.0, 2637126372Snjlthe field is returned as a buffer only if the field is larger 2638126372Snjlthan 2639126372Snjl64 bits. The TableRevision is now considered when making this 2640126372Snjlconversion to avoid incompatibility with existing ASL code. 2641102550Siwasaki 2642104470SiwasakiImplemented logical addressing for AcpiOsGetRootPointer. This 2643114237Snjlallows an RSDP with either a logical or physical address. With 2644114237Snjlthis support, the host OS can now override all ACPI tables with 2645114237Snjlone logical RSDP. Includes implementation of "typed" pointer 2646114237Snjlsupport to allow a common data type for both physical and logical 2647114237Snjlpointers internally. This required a change to the 2648114237SnjlAcpiOsGetRootPointer interface. 2649102550Siwasaki 2650104470SiwasakiImplemented the use of ACPI 2.0 Generic Address Structures for 2651126372Snjlall 2652126372SnjlGPE, Fixed Event, and PM Timer I/O. This allows the use of 2653126372Snjlmemory 2654126372Snjlmapped I/O for these ACPI features. 2655102550Siwasaki 2656102550SiwasakiInitialization now ignores not only non-required tables (All 2657114237Snjltables other than the FADT, FACS, DSDT, and SSDTs), but also does 2658114237Snjlnot validate the table headers of unrecognized tables. 2659102550Siwasaki 2660102550SiwasakiFixed a problem where a notify handler could only be 2661102550Siwasakiinstalled/removed on an object of type Device. All "notify" 2662102550Siwasakiobjects are now supported -- Devices, Processor, Power, and 2663102550SiwasakiThermal. 2664102550Siwasaki 2665114237SnjlRemoved most verbosity from the ACPI_DB_INFO debug level. Only 2666114237Snjlcritical information is returned when this debug level is 2667104470Siwasakienabled. 2668102550Siwasaki 2669102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2670126372Snjlshown 2671126372Snjlbelow. These are the code and data sizes for the acpica.lib 2672126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2673126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 2674126372Snjlversion of the code includes the debug output trace mechanism and 2675126372Snjlhas a larger code and data size. Note that these values will 2676126372Snjlvary 2677126372Snjldepending on the efficiency of the compiler and the compiler 2678126372Snjloptions used during generation. 2679102550Siwasaki 2680102550Siwasaki Previous Release 2681104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 2682104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 2683102550Siwasaki Current Release: 2684104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 2685104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 2686102550Siwasaki 2687102550Siwasaki 2688102550Siwasaki2) Linux: 2689102550Siwasaki 2690114237SnjlThe processor driver (acpi_processor.c) now fully supports ACPI 2691114237Snjl2.0-based processor performance control (e.g. Intel(R) 2692114237SnjlSpeedStep(TM) technology) Note that older laptops that only have 2693114237Snjlthe Intel "applet" interface are not supported through this. The 2694114237Snjl'limit' and 'performance' interface (/proc) are fully functional. 2695114237Snjl[Note that basic policy for controlling performance state 2696114237Snjltransitions will be included in the next version of ospmd.] The 2697114237Snjlidle handler was modified to more aggressively use C2, and PIIX4 2698114237Snjlerrata handling underwent a complete overhaul (big thanks to 2699114237SnjlDominik Brodowski). 2700102550Siwasaki 2701114237SnjlAdded support for ACPI-PCI device binding (acpi_pci_root.c). _ADR- 2702114237Snjlbased devices in the ACPI namespace are now dynamically bound 2703114237Snjl(associated) with their PCI counterparts (e.g. PCI1->01:00.0). 2704114237SnjlThis allows, among other things, ACPI to resolve bus numbers for 2705114237Snjlsubordinate PCI bridges. 2706102550Siwasaki 2707104470SiwasakiEnhanced PCI IRQ routing to get the proper bus number for _PRT 2708104470Siwasakientries defined underneath PCI bridges. 2709102550Siwasaki 2710104470SiwasakiAdded IBM 600E to bad bios list due to invalid _ADR value for 2711104470SiwasakiPIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing. 2712102550Siwasaki 2713114237SnjlIn the process of adding full MADT support (e.g. IOAPIC) for IA32 2714114237Snjl(acpi.c, mpparse.c) -- stay tuned. 2715102550Siwasaki 2716102550SiwasakiAdded back visual differentiation between fixed-feature and 2717114237Snjlcontrol-method buttons in dmesg. Buttons are also subtyped (e.g. 2718114237Snjlbutton/power/PWRF) to simplify button identification. 2719102550Siwasaki 2720114237SnjlWe no longer use -Wno-unused when compiling debug. Please ignore 2721114237Snjlany "_THIS_MODULE defined but not used" messages. 2722102550Siwasaki 2723102550SiwasakiCan now shut down the system using "magic sysrq" key. 2724102550Siwasaki 2725102550Siwasaki 2726102550Siwasaki3) iASL Compiler version 2041: 2727102550Siwasaki 2728104470SiwasakiFixed a problem where conversion errors for hex/octal/decimal 2729104470Siwasakiconstants were not reported. 2730102550Siwasaki 2731102550SiwasakiImplemented a fix for the General Register template Address 2732126372Snjlfield. 2733126372SnjlThis field was 8 bits when it should be 64. 2734102550Siwasaki 2735102550SiwasakiFixed a problem where errors/warnings were no longer being 2736126372Snjlemitted 2737126372Snjlwithin the listing output file. 2738102550Siwasaki 2739114237SnjlImplemented the ACPI 2.0A restriction on ACPI Table Signatures to 2740114237Snjlexactly 4 characters, alphanumeric only. 2741102550Siwasaki 2742102550Siwasaki 2743102550Siwasaki 2744102550Siwasaki 2745102550Siwasaki---------------------------------------- 2746102550SiwasakiSummary of changes for this release: 03_08_02 2747102550Siwasaki 2748102550Siwasaki 2749102550Siwasaki1) ACPI CA Core Subsystem Version 20020308: 2750102550Siwasaki 2751114237SnjlFixed a problem with AML Fields where the use of the "AccessAny" 2752114237Snjlkeyword could cause an interpreter error due to attempting to 2753126372Snjlread 2754126372Snjlor write beyond the end of the parent Operation Region. 2755102550Siwasaki 2756102550SiwasakiFixed a problem in the SystemMemory Operation Region handler 2757126372Snjlwhere 2758126372Snjlan attempt was made to map memory beyond the end of the region. 2759126372SnjlThis was the root cause of the "AE_ERROR" and "AE_NO_MEMORY" 2760126372Snjlerrors on some Linux systems. 2761102550Siwasaki 2762114237SnjlFixed a problem where the interpreter/namespace "search to root" 2763114237Snjlalgorithm was not functioning for some object types. Relaxed the 2764114237Snjlinternal restriction on the search to allow upsearches for all 2765114237Snjlexternal object types as well as most internal types. 2766102550Siwasaki 2767102550Siwasaki 2768102550Siwasaki2) Linux: 2769102550Siwasaki 2770104470SiwasakiWe now use safe_halt() macro versus individual calls to sti | 2771104470Siwasakihlt. 2772102550Siwasaki 2773114237SnjlWriting to the processor limit interface should now work. "echo 2774126372Snjl1" 2775126372Snjlwill increase the limit, 2 will decrease, and 0 will reset to the 2776126372Snjldefault. 2777102550Siwasaki 2778102550Siwasaki 2779102550Siwasaki3) ASL compiler: 2780102550Siwasaki 2781102550SiwasakiFixed segfault on Linux version. 2782102550Siwasaki 2783102550Siwasaki 2784102550Siwasaki---------------------------------------- 2785102550SiwasakiSummary of changes for this release: 02_25_02 2786102550Siwasaki 2787102550Siwasaki1) ACPI CA Core Subsystem: 2788102550Siwasaki 2789102550Siwasaki 2790102550SiwasakiFixed a problem where the GPE bit masks were not initialized 2791102550Siwasakiproperly, causing erratic GPE behavior. 2792102550Siwasaki 2793104470SiwasakiImplemented limited support for multiple calling conventions. 2794126372SnjlThe 2795126372Snjlcode can be generated with either the VPL (variable parameter 2796114237Snjllist, or "C") convention, or the FPL (fixed parameter list, or 2797114237Snjl"Pascal") convention. The core subsystem is about 3.4% smaller 2798114237Snjlwhen generated with FPL. 2799102550Siwasaki 2800102550Siwasaki 2801102550Siwasaki2) Linux 2802102550Siwasaki 2803114237SnjlRe-add some /proc/acpi/event functionality that was lost during 2804114237Snjlthe rewrite 2805102550Siwasaki 2806102550SiwasakiResolved issue with /proc events for fixed-feature buttons 2807126372Snjlshowing 2808126372Snjlup as the system device. 2809102550Siwasaki 2810102550SiwasakiFixed checks on C2/C3 latencies to be inclusive of maximum 2811102550Siwasakivalues. 2812102550Siwasaki 2813114237SnjlReplaced AE_ERRORs in acpi_osl.c with more specific error codes. 2814102550Siwasaki 2815114237SnjlChanged ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi" 2816102550Siwasaki 2817104470SiwasakiFixed limit interface & usage to fix bugs with passive cooling 2818104470Siwasakihysterisis. 2819102550Siwasaki 2820102550SiwasakiRestructured PRT support. 2821102550Siwasaki 2822102550Siwasaki 2823102550Siwasaki---------------------------------------- 2824102550SiwasakiSummary of changes for this label: 02_14_02 2825102550Siwasaki 2826102550Siwasaki 2827102550Siwasaki1) ACPI CA Core Subsystem: 2828102550Siwasaki 2829114237SnjlImplemented support in AcpiLoadTable to allow loading of FACS and 2830114237SnjlFADT tables. 2831102550Siwasaki 2832114237SnjlSuport for the now-obsolete interim 0.71 64-bit ACPI tables has 2833114237Snjlbeen removed. All 64-bit platforms should be migrated to the 2834126372SnjlACPI 2835126372Snjl2.0 tables. The actbl71.h header has been removed from the 2836126372Snjlsource 2837126372Snjltree. 2838102550Siwasaki 2839114237SnjlAll C macros defined within the subsystem have been prefixed with 2840114237Snjl"ACPI_" to avoid collision with other system include files. 2841102550Siwasaki 2842102550SiwasakiRemoved the return value for the two AcpiOsPrint interfaces, 2843126372Snjlsince 2844126372Snjlit is never used and causes lint warnings for ignoring the return 2845126372Snjlvalue. 2846102550Siwasaki 2847104470SiwasakiAdded error checking to all internal mutex acquire and release 2848104470Siwasakicalls. Although a failure from one of these interfaces is 2849104470Siwasakiprobably a fatal system error, these checks will cause the 2850114237Snjlimmediate abort of the currently executing method or interface. 2851102550Siwasaki 2852114237SnjlFixed a problem where the AcpiSetCurrentResources interface could 2853114237Snjlfault. This was a side effect of the deployment of the new 2854126372Snjlmemory 2855126372Snjlallocation model. 2856102550Siwasaki 2857102550SiwasakiFixed a couple of problems with the Global Lock support 2858126372Snjlintroduced 2859126372Snjlin the last major build. The "common" (1.0/2.0) internal FACS 2860126372Snjlwas 2861126372Snjlbeing overwritten with the FACS signature and clobbering the 2862126372SnjlGlobal Lock pointer. Also, the actual firmware FACS was being 2863126372Snjlunmapped after construction of the "common" FACS, preventing 2864126372Snjlaccess to the actual Global Lock field within it. The "common" 2865126372Snjlinternal FACS is no longer installed as an actual ACPI table; it 2866126372Snjlis used simply as a global. 2867102550Siwasaki 2868102550SiwasakiCode and Data Size: Current core subsystem library sizes are 2869126372Snjlshown 2870126372Snjlbelow. These are the code and data sizes for the acpica.lib 2871126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 2872126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 2873126372Snjlversion of the code includes the debug output trace mechanism and 2874126372Snjlhas a larger code and data size. Note that these values will 2875126372Snjlvary 2876126372Snjldepending on the efficiency of the compiler and the compiler 2877126372Snjloptions used during generation. 2878102550Siwasaki 2879102550Siwasaki Previous Release (02_07_01) 2880104470Siwasaki Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 2881104470Siwasaki Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 2882102550Siwasaki Current Release: 2883104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 2884104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 2885102550Siwasaki 2886102550Siwasaki 2887102550Siwasaki2) Linux 2888102550Siwasaki 2889102550SiwasakiUpdated Linux-specific code for core macro and OSL interface 2890102550Siwasakichanges described above. 2891102550Siwasaki 2892114237SnjlImproved /proc/acpi/event. It now can be opened only once and has 2893114237Snjlproper poll functionality. 2894102550Siwasaki 2895102550SiwasakiFixed and restructured power management (acpi_bus). 2896102550Siwasaki 2897102550SiwasakiOnly create /proc "view by type" when devices of that class 2898102550Siwasakiexist. 2899102550Siwasaki 2900104470SiwasakiFixed "charging/discharging" bug (and others) in acpi_battery. 2901102550Siwasaki 2902102550SiwasakiImproved thermal zone code. 2903102550Siwasaki 2904102550Siwasaki 2905102550Siwasaki3) ASL Compiler, version X2039: 2906102550Siwasaki 2907114237Snjl 2908114237SnjlImplemented the new compiler restriction on ASL String hex/octal 2909114237Snjlescapes to non-null, ASCII values. An error results if an 2910126372Snjlinvalid 2911126372Snjlvalue is used. (This will require an ACPI 2.0 specification 2912126372Snjlchange.) 2913102550Siwasaki 2914102550SiwasakiAML object labels that are output to the optional C and ASM 2915126372Snjlsource 2916126372Snjlare now prefixed with both the ACPI table signature and table ID 2917126372Snjlto help guarantee uniqueness within a large BIOS project. 2918102550Siwasaki 2919102550Siwasaki 2920102550Siwasaki---------------------------------------- 2921102550SiwasakiSummary of changes for this label: 02_01_02 2922102550Siwasaki 2923102550Siwasaki1) ACPI CA Core Subsystem: 2924102550Siwasaki 2925114237SnjlACPI 2.0 support is complete in the entire Core Subsystem and the 2926114237SnjlASL compiler. All new ACPI 2.0 operators are implemented and all 2927114237Snjlother changes for ACPI 2.0 support are complete. With 2928104470Siwasakisimultaneous code and data optimizations throughout the 2929126372Snjlsubsystem, 2930126372SnjlACPI 2.0 support has been implemented with almost no additional 2931126372Snjlcost in terms of code and data size. 2932102550Siwasaki 2933114237SnjlImplemented a new mechanism for allocation of return buffers. If 2934114237Snjlthe buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will 2935114237Snjlbe allocated on behalf of the caller. Consolidated all return 2936114237Snjlbuffer validation and allocation to a common procedure. Return 2937114237Snjlbuffers will be allocated via the primary OSL allocation 2938126372Snjlinterface 2939126372Snjlsince it appears that a separate pool is not needed by most 2940126372Snjlusers. 2941126372SnjlIf a separate pool is required for these buffers, the caller can 2942126372Snjlstill use the original mechanism and pre-allocate the buffer(s). 2943102550Siwasaki 2944102550SiwasakiImplemented support for string operands within the DerefOf 2945102550Siwasakioperator. 2946102550Siwasaki 2947114237SnjlRestructured the Hardware and Event managers to be table driven, 2948114237Snjlsimplifying the source code and reducing the amount of generated 2949114237Snjlcode. 2950102550Siwasaki 2951102550SiwasakiSplit the common read/write low-level ACPI register bitfield 2952104470Siwasakiprocedure into a separate read and write, simplifying the code 2953104470Siwasakiconsiderably. 2954102550Siwasaki 2955114237SnjlObsoleted the AcpiOsCallocate OSL interface. This interface was 2956114237Snjlused only a handful of times and didn't have enough critical mass 2957114237Snjlfor a separate interface. Replaced with a common calloc 2958126372Snjlprocedure 2959126372Snjlin the core. 2960102550Siwasaki 2961104470SiwasakiFixed a reported problem with the GPE number mapping mechanism 2962104470Siwasakithat allows GPE1 numbers to be non-contiguous with GPE0. 2963114237SnjlReorganized the GPE information and shrunk a large array that was 2964114237Snjloriginally large enough to hold info for all possible GPEs (256) 2965114237Snjlto simply large enough to hold all GPEs up to the largest GPE 2966114237Snjlnumber on the machine. 2967102550Siwasaki 2968114237SnjlFixed a reported problem with resource structure alignment on 64- 2969114237Snjlbit platforms. 2970102550Siwasaki 2971102550SiwasakiChanged the AcpiEnableEvent and AcpiDisableEvent external 2972102550Siwasakiinterfaces to not require any flags for the common case of 2973102550Siwasakienabling/disabling a GPE. 2974102550Siwasaki 2975104470SiwasakiImplemented support to allow a "Notify" on a Processor object. 2976102550Siwasaki 2977114237SnjlMost TBDs in comments within the source code have been resolved 2978114237Snjland eliminated. 2979102550Siwasaki 2980102550SiwasakiFixed a problem in the interpreter where a standalone parent 2981102550Siwasakiprefix (^) was not handled correctly in the interpreter and 2982102550Siwasakidebugger. 2983102550Siwasaki 2984102550SiwasakiRemoved obsolete and unnecessary GPE save/restore code. 2985102550Siwasaki 2986114237SnjlImplemented Field support in the ASL Load operator. This allows 2987126372Snjla 2988126372Snjltable to be loaded from a named field, in addition to loading a 2989114237Snjltable directly from an Operation Region. 2990102550Siwasaki 2991104470SiwasakiImplemented timeout and handle support in the external Global 2992126372SnjlLock 2993126372Snjlinterfaces. 2994102550Siwasaki 2995114237SnjlFixed a problem in the AcpiDump utility where pathnames were no 2996114237Snjllonger being generated correctly during the dump of named 2997102550Siwasakiobjects. 2998102550Siwasaki 2999102550SiwasakiModified the AML debugger to give a full display of if/while 3000102550Siwasakipredicates instead of just one AML opcode at a time. (The 3001102550Siwasakipredicate can have several nested ASL statements.) The old 3002126372Snjlmethod 3003126372Snjlwas confusing during single stepping. 3004102550Siwasaki 3005102550SiwasakiCode and Data Size: Current core subsystem library sizes are 3006126372Snjlshown 3007126372Snjlbelow. These are the code and data sizes for the acpica.lib 3008114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 3009114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 3010114237Snjlversion of the code includes the debug output trace mechanism and 3011114237Snjlhas a larger code and data size. Note that these values will 3012126372Snjlvary 3013126372Snjldepending on the efficiency of the compiler and the compiler 3014114237Snjloptions used during generation. 3015102550Siwasaki 3016102550Siwasaki Previous Release (12_18_01) 3017114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 3018114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 3019102550Siwasaki Current Release: 3020114237Snjl Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 3021114237Snjl Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 3022102550Siwasaki 3023102550Siwasaki2) Linux 3024102550Siwasaki 3025104470Siwasaki Implemented fix for PIIX reverse throttling errata (Processor 3026104470Siwasakidriver) 3027102550Siwasaki 3028102550SiwasakiAdded new Limit interface (Processor and Thermal drivers) 3029102550Siwasaki 3030102550SiwasakiNew thermal policy (Thermal driver) 3031102550Siwasaki 3032102550SiwasakiMany updates to /proc 3033102550Siwasaki 3034102550SiwasakiBattery "low" event support (Battery driver) 3035102550Siwasaki 3036104470SiwasakiSupports ACPI PCI IRQ routing (PCI Link and PCI root drivers) 3037102550Siwasaki 3038104470SiwasakiIA32 - IA64 initialization unification, no longer experimental 3039102550Siwasaki 3040102550SiwasakiMenuconfig options redesigned 3041102550Siwasaki 3042102550Siwasaki3) ASL Compiler, version X2037: 3043102550Siwasaki 3044114237SnjlImplemented several new output features to simplify integration 3045126372Snjlof 3046126372SnjlAML code into firmware: 1) Output the AML in C source code with 3047126372Snjllabels for each named ASL object. The original ASL source 3048126372Snjlcode 3049126372Snjlis interleaved as C comments. 2) Output the AML in ASM source 3050126372Snjlcode 3051126372Snjlwith labels and interleaved ASL source. 3) Output the AML in 3052126372Snjlraw hex table form, in either C or ASM. 3053102550Siwasaki 3054102550SiwasakiImplemented support for optional string parameters to the 3055102550SiwasakiLoadTable operator. 3056102550Siwasaki 3057104470SiwasakiCompleted support for embedded escape sequences within string 3058114237Snjlliterals. The compiler now supports all single character escapes 3059114237Snjlas well as the Octal and Hex escapes. Note: the insertion of a 3060114237Snjlnull byte into a string literal (via the hex/octal escape) causes 3061114237Snjlthe string to be immediately terminated. A warning is issued. 3062102550Siwasaki 3063104470SiwasakiFixed a problem where incorrect AML was generated for the case 3064104470Siwasakiwhere an ASL namepath consists of a single parent prefix ( 3065102550Siwasaki 3066102550Siwasaki) with no trailing name segments. 3067102550Siwasaki 3068102550SiwasakiThe compiler has been successfully generated with a 64-bit C 3069102550Siwasakicompiler. 3070102550Siwasaki 3071102550Siwasaki 3072102550Siwasaki 3073102550Siwasaki 3074102550Siwasaki---------------------------------------- 3075102550SiwasakiSummary of changes for this label: 12_18_01 3076102550Siwasaki 3077102550Siwasaki1) Linux 3078102550Siwasaki 3079114237SnjlEnhanced blacklist with reason and severity fields. Any table's 3080114237Snjlsignature may now be used to identify a blacklisted system. 3081102550Siwasaki 3082114237SnjlCall _PIC control method to inform the firmware which interrupt 3083114237Snjlmodel the OS is using. Turn on any disabled link devices. 3084102550Siwasaki 3085102550SiwasakiCleaned up busmgr /proc error handling (Andreas Dilger) 3086102550Siwasaki 3087102550Siwasaki 2) ACPI CA Core Subsystem: 3088102550Siwasaki 3089104470SiwasakiImplemented ACPI 2.0 semantics for the "Break" operator (Exit 3090126372Snjlfrom 3091126372Snjlwhile loop) 3092102550Siwasaki 3093102550SiwasakiCompleted implementation of the ACPI 2.0 "Continue", 3094102550Siwasaki"ConcatenateResTemplate", "DataTableRegion", and "LoadTable" 3095104470Siwasakioperators. All new ACPI 2.0 operators are now implemented in 3096126372Snjlboth 3097126372Snjlthe ASL compiler and the AML interpreter. The only remaining 3098126372SnjlACPI 3099126372Snjl2.0 task is support for the String data type in the DerefOf 3100126372Snjloperator. Fixed a problem with AcquireMutex where the status 3101126372Snjlcode 3102126372Snjlwas lost if the caller had to actually wait for the mutex. 3103102550Siwasaki 3104104470SiwasakiIncreased the maximum ASL Field size from 64K bits to 4G bits. 3105102550Siwasaki 3106114237SnjlCompleted implementation of the external Global Lock interfaces - 3107126372Snjl- 3108126372SnjlAcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and 3109126372SnjlHandler parameters were added. 3110102550Siwasaki 3111102550SiwasakiCompleted another pass at removing warnings and issues when 3112114237Snjlcompiling with 64-bit compilers. The code now compiles cleanly 3113114237Snjlwith the Intel 64-bit C/C++ compiler. Most notably, the pointer 3114114237Snjladd and subtract (diff) macros have changed considerably. 3115102550Siwasaki 3116114237SnjlCreated and deployed a new ACPI_SIZE type that is 64-bits wide on 3117114237Snjl64-bit platforms, 32-bits on all others. This type is used 3118104470Siwasakiwherever memory allocation and/or the C sizeof() operator is 3119126372Snjlused, 3120126372Snjland affects the OSL memory allocation interfaces AcpiOsAllocate 3121126372Snjland AcpiOsCallocate. 3122102550Siwasaki 3123102550SiwasakiImplemented sticky user breakpoints in the AML debugger. 3124102550Siwasaki 3125102550SiwasakiCode and Data Size: Current core subsystem library sizes are 3126126372Snjlshown 3127126372Snjlbelow. These are the code and data sizes for the acpica.lib 3128114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 3129114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 3130114237Snjlversion of the code includes the debug output trace mechanism and 3131114237Snjlhas a larger code and data size. Note that these values will vary 3132114237Snjldepending on the efficiency of the compiler and the compiler 3133114237Snjloptions used during generation. 3134102550Siwasaki 3135102550Siwasaki Previous Release (12_05_01) 3136114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 3137114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 3138102550Siwasaki Current Release: 3139114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 3140114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 3141102550Siwasaki 3142102550Siwasaki 3) ASL Compiler, version X2034: 3143102550Siwasaki 3144114237SnjlNow checks for (and generates an error if detected) the use of a 3145114237SnjlBreak or Continue statement without an enclosing While statement. 3146102550Siwasaki 3147102550SiwasakiSuccessfully generated the compiler with the Intel 64-bit C 3148102550Siwasakicompiler. 3149102550Siwasaki 3150102550Siwasaki ---------------------------------------- 3151102550SiwasakiSummary of changes for this label: 12_05_01 3152102550Siwasaki 3153102550Siwasaki 1) ACPI CA Core Subsystem: 3154102550Siwasaki 3155102550SiwasakiThe ACPI 2.0 CopyObject operator is fully implemented. This 3156104470Siwasakioperator creates a new copy of an object (and is also used to 3157104470Siwasakibypass the "implicit conversion" mechanism of the Store 3158102550Siwasakioperator.) 3159102550Siwasaki 3160102550SiwasakiThe ACPI 2.0 semantics for the SizeOf operator are fully 3161102550Siwasakiimplemented. The change is that performing a SizeOf on a 3162114237Snjlreference object causes an automatic dereference of the object to 3163114237Snjltha actual value before the size is evaluated. This behavior was 3164114237Snjlundefined in ACPI 1.0. 3165102550Siwasaki 3166114237SnjlThe ACPI 2.0 semantics for the Extended IRQ resource descriptor 3167114237Snjlhave been implemented. The interrupt polarity and mode are now 3168114237Snjlindependently set. 3169102550Siwasaki 3170114237SnjlFixed a problem where ASL Constants (Zero, One, Ones, Revision) 3171114237Snjlappearing in Package objects were not properly converted to 3172114237Snjlintegers when the internal Package was converted to an external 3173114237Snjlobject (via the AcpiEvaluateObject interface.) 3174102550Siwasaki 3175114237SnjlFixed a problem with the namespace object deletion mechanism for 3176114237Snjlobjects created by control methods. There were two parts to this 3177114237Snjlproblem: 1) Objects created during the initialization phase 3178126372Snjlmethod 3179126372Snjlparse were not being deleted, and 2) The object owner ID 3180126372Snjlmechanism 3181126372Snjlto track objects was broken. 3182102550Siwasaki 3183114237SnjlFixed a problem where the use of the ASL Scope operator within a 3184114237Snjlcontrol method would result in an invalid opcode exception. 3185102550Siwasaki 3186114237SnjlFixed a problem introduced in the previous label where the buffer 3187114237Snjllength required for the _PRT structure was not being returned 3188114237Snjlcorrectly. 3189102550Siwasaki 3190102550SiwasakiCode and Data Size: Current core subsystem library sizes are 3191126372Snjlshown 3192126372Snjlbelow. These are the code and data sizes for the acpica.lib 3193114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 3194114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 3195114237Snjlversion of the code includes the debug output trace mechanism and 3196114237Snjlhas a larger code and data size. Note that these values will 3197126372Snjlvary 3198126372Snjldepending on the efficiency of the compiler and the compiler 3199114237Snjloptions used during generation. 3200102550Siwasaki 3201102550Siwasaki Previous Release (11_20_01) 3202114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 3203114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 3204102550Siwasaki 3205102550Siwasaki Current Release: 3206114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 3207114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 3208102550Siwasaki 3209102550Siwasaki 2) Linux: 3210102550Siwasaki 3211102550SiwasakiUpdated all files to apply cleanly against 2.4.16. 3212102550Siwasaki 3213104470SiwasakiAdded basic PCI Interrupt Routing Table (PRT) support for IA32 3214114237Snjl(acpi_pci.c), and unified the PRT code for IA32 and IA64. This 3215114237Snjlversion supports both static and dyanmic PRT entries, but dynamic 3216114237Snjlentries are treated as if they were static (not yet 3217114237Snjlreconfigurable). Architecture- specific code to use this data is 3218114237Snjlabsent on IA32 but should be available shortly. 3219102550Siwasaki 3220114237SnjlChanged the initialization sequence to start the ACPI interpreter 3221114237Snjl(acpi_init) prior to initialization of the PCI driver (pci_init) 3222114237Snjlin init/main.c. This ordering is required to support PRT and 3223114237Snjlfacilitate other (future) enhancement. A side effect is that the 3224114237SnjlACPI bus driver and certain device drivers can no longer be 3225126372Snjlloaded 3226126372Snjlas modules. 3227102550Siwasaki 3228104470SiwasakiModified the 'make menuconfig' options to allow PCI Interrupt 3229104470SiwasakiRouting support to be included without the ACPI Bus and other 3230104470Siwasakidevice drivers. 3231102550Siwasaki 3232102550Siwasaki 3) ASL Compiler, version X2033: 3233102550Siwasaki 3234102550SiwasakiFixed some issues with the use of the new CopyObject and 3235102550SiwasakiDataTableRegion operators. Both are fully functional. 3236102550Siwasaki 3237102550Siwasaki ---------------------------------------- 3238102550SiwasakiSummary of changes for this label: 11_20_01 3239102550Siwasaki 3240102550Siwasaki 20 November 2001. Summary of changes for this release. 3241102550Siwasaki 3242102550Siwasaki 1) ACPI CA Core Subsystem: 3243102550Siwasaki 3244104470SiwasakiUpdated Index support to match ACPI 2.0 semantics. Storing a 3245104470SiwasakiInteger, String, or Buffer to an Index of a Buffer will store 3246126372Snjlonly 3247126372Snjlthe least-significant byte of the source to the Indexed buffer 3248126372Snjlbyte. Multiple writes are not performed. 3249102550Siwasaki 3250104470SiwasakiFixed a problem where the access type used in an AccessAs ASL 3251104470Siwasakioperator was not recorded correctly into the field object. 3252102550Siwasaki 3253102550SiwasakiFixed a problem where ASL Event objects were created in a 3254114237Snjlsignalled state. Events are now created in an unsignalled state. 3255102550Siwasaki 3256114237SnjlThe internal object cache is now purged after table loading and 3257114237Snjlinitialization to reduce the use of dynamic kernel memory -- on 3258114237Snjlthe assumption that object use is greatest during the parse phase 3259114237Snjlof the entire table (versus the run-time use of individual 3260126372Snjlcontrol 3261126372Snjlmethods.) 3262102550Siwasaki 3263102550SiwasakiACPI 2.0 variable-length packages are now fully operational. 3264102550Siwasaki 3265104470SiwasakiCode and Data Size: Code and Data optimizations have permitted 3266126372Snjlnew 3267126372Snjlfeature development with an actual reduction in the library size. 3268126372SnjlCurrent core subsystem library sizes are shown below. These are 3269126372Snjlthe code and data sizes for the acpica.lib produced by the 3270126372SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 3271126372Snjlinclude 3272126372Snjlany ACPI driver or OSPM code. The debug version of the code 3273126372Snjlincludes the debug output trace mechanism and has a larger code 3274126372Snjland data size. Note that these values will vary depending on the 3275126372Snjlefficiency of the compiler and the compiler options used during 3276126372Snjlgeneration. 3277102550Siwasaki 3278102550Siwasaki Previous Release (11_09_01): 3279114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 3280114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 3281102550Siwasaki 3282102550Siwasaki Current Release: 3283114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 3284114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 3285102550Siwasaki 3286102550Siwasaki 2) Linux: 3287102550Siwasaki 3288114237SnjlEnhanced the ACPI boot-time initialization code to allow the use 3289114237Snjlof Local APIC tables for processor enumeration on IA-32, and to 3290114237Snjlpave the way for a fully MPS-free boot (on SMP systems) in the 3291114237Snjlnear future. This functionality replaces 3292114237Snjlarch/i386/kernel/acpitables.c, which was introduced in an earlier 3293114237Snjl2.4.15-preX release. To enable this feature you must add 3294114237Snjl"acpi_boot=on" to the kernel command line -- see the help entry 3295114237Snjlfor CONFIG_ACPI_BOOT for more information. An IA-64 release is 3296126372Snjlin 3297126372Snjlthe works... 3298102550Siwasaki 3299114237SnjlRestructured the configuration options to allow boot-time table 3300114237Snjlparsing support without inclusion of the ACPI Interpreter (and 3301114237Snjlother) code. 3302102550Siwasaki 3303102550SiwasakiNOTE: This release does not include fixes for the reported 3304126372Snjlevents, 3305126372Snjlpower-down, and thermal passive cooling issues (coming soon). 3306102550Siwasaki 3307102550Siwasaki 3) ASL Compiler: 3308102550Siwasaki 3309114237SnjlAdded additional typechecking for Fields within restricted access 3310114237SnjlOperation Regions. All fields within EC and CMOS regions must be 3311114237Snjldeclared with ByteAcc. All fields withing SMBus regions must be 3312114237Snjldeclared with the BufferAcc access type. 3313102550Siwasaki 3314114237SnjlFixed a problem where the listing file output of control methods 3315114237Snjlno longer interleaved the actual AML code with the ASL source 3316114237Snjlcode. 3317102550Siwasaki 3318102550Siwasaki 3319102550Siwasaki 3320102550Siwasaki---------------------------------------- 3321102550SiwasakiSummary of changes for this label: 11_09_01 3322102550Siwasaki 3323102550Siwasaki1) ACPI CA Core Subsystem: 3324102550Siwasaki 3325114237SnjlImplemented ACPI 2.0-defined support for writes to fields with a 3326114237SnjlBuffer, String, or Integer source operand that is smaller than 3327126372Snjlthe 3328126372Snjltarget field. In these cases, the source operand is zero-extended 3329126372Snjlto fill the target field. 3330102550Siwasaki 3331104470SiwasakiFixed a problem where a Field starting bit offset (within the 3332104470Siwasakiparent operation region) was calculated incorrectly if the 3333104470Siwasakialignment of the field differed from the access width. This 3334114237Snjlaffected CreateWordField, CreateDwordField, CreateQwordField, and 3335114237Snjlpossibly other fields that use the "AccessAny" keyword. 3336102550Siwasaki 3337114237SnjlFixed a problem introduced in the 11_02_01 release where indirect 3338114237Snjlstores through method arguments did not operate correctly. 3339102550Siwasaki 3340102550Siwasaki2) Linux: 3341102550Siwasaki 3342102550SiwasakiImplemented boot-time ACPI table parsing support 3343114237Snjl(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code 3344114237Snjlfacilitates the use of ACPI tables (e.g. MADT, SRAT) rather than 3345114237Snjllegacy BIOS interfaces (e.g. MPS) for the configuration of system 3346114237Snjlprocessors, memory, and interrupts during setup_arch(). Note 3347126372Snjlthat 3348126372Snjlthis patch does not include the required architecture-specific 3349126372Snjlchanges required to apply this information -- subsequent patches 3350126372Snjlwill be posted for both IA32 and IA64 to achieve this. 3351102550Siwasaki 3352114237SnjlAdded low-level sleep support for IA32 platforms, courtesy of Pat 3353114237SnjlMochel. This allows IA32 systems to transition to/from various 3354114237Snjlsleeping states (e.g. S1, S3), although the lack of a centralized 3355114237Snjldriver model and power-manageable drivers will prevent its 3356114237Snjl(successful) use on most systems. 3357102550Siwasaki 3358114237SnjlRevamped the ACPI 'menuconfig' layout: created new "ACPI Support" 3359114237Snjlsubmenu, unified IA32 and IA64 options, added new "Boot using 3360126372SnjlACPI 3361126372Snjltables" option, etc. 3362102550Siwasaki 3363114237SnjlIncreased the default timeout for the EC driver from 1ms to 10ms 3364114237Snjl(1000 cycles of 10us) to try to address AE_TIME errors during EC 3365114237Snjltransactions. 3366102550Siwasaki 3367102550Siwasaki ---------------------------------------- 3368102550SiwasakiSummary of changes for this label: 11_02_01 3369102550Siwasaki 3370102550Siwasaki1) ACPI CA Core Subsystem: 3371102550Siwasaki 3372102550SiwasakiACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access 3373102550Siwasaki(QWordAcc keyword). All ACPI 2.0 64-bit support is now 3374102550Siwasakiimplemented. 3375102550Siwasaki 3376114237SnjlOSL Interfaces: Several of the OSL (AcpiOs*) interfaces required 3377114237Snjlchanges to support ACPI 2.0 Qword field access. Read/Write 3378114237SnjlPciConfiguration(), Read/Write Memory(), and Read/Write Port() 3379126372Snjlnow 3380126372Snjlaccept an ACPI_INTEGER (64 bits) as the value parameter. Also, 3381126372Snjlthe value parameter for the address space handler interface is 3382126372Snjlnow 3383126372Snjlan ACPI_INTEGER. OSL implementations of these interfaces must 3384126372Snjlnow 3385126372Snjlhandle the case where the Width parameter is 64. 3386102550Siwasaki 3387104470SiwasakiIndex Fields: Fixed a problem where unaligned bit assembly and 3388104470Siwasakidisassembly for IndexFields was not supported correctly. 3389102550Siwasaki 3390102550SiwasakiIndex and Bank Fields: Nested Index and Bank Fields are now 3391104470Siwasakisupported. During field access, a check is performed to ensure 3392114237Snjlthat the value written to an Index or Bank register is not out of 3393114237Snjlthe range of the register. The Index (or Bank) register is 3394114237Snjlwritten before each access to the field data. Future support will 3395114237Snjlinclude allowing individual IndexFields to be wider than the 3396114237SnjlDataRegister width. 3397102550Siwasaki 3398114237SnjlFields: Fixed a problem where the AML interpreter was incorrectly 3399114237Snjlattempting to write beyond the end of a Field/OpRegion. This was 3400114237Snjla boundary case that occurred when a DWORD field was written to a 3401114237SnjlBYTE access OpRegion, forcing multiple writes and causing the 3402114237Snjlinterpreter to write one datum too many. 3403102550Siwasaki 3404102550SiwasakiFields: Fixed a problem with Field/OpRegion access where the 3405114237Snjlstarting bit address of a field was incorrectly calculated if the 3406114237Snjlcurrent access type was wider than a byte (WordAcc, DwordAcc, or 3407114237SnjlQwordAcc). 3408102550Siwasaki 3409104470SiwasakiFields: Fixed a problem where forward references to individual 3410104470SiwasakiFieldUnits (individual Field names within a Field definition) 3411126372Snjlwere 3412126372Snjlnot resolved during the AML table load. 3413102550Siwasaki 3414104470SiwasakiFields: Fixed a problem where forward references from a Field 3415104470Siwasakidefinition to the parent Operation Region definition were not 3416104470Siwasakiresolved during the AML table load. 3417104470Siwasaki 3418114237SnjlFields: Duplicate FieldUnit names within a scope are now detected 3419114237Snjlduring AML table load. 3420102550Siwasaki 3421102550SiwasakiAcpi Interfaces: Fixed a problem where the AcpiGetName() 3422126372Snjlinterface 3423126372Snjlreturned an incorrect name for the root node. 3424102550Siwasaki 3425104470SiwasakiCode and Data Size: Code and Data optimizations have permitted 3426126372Snjlnew 3427126372Snjlfeature development with an actual reduction in the library size. 3428126372SnjlCurrent core subsystem library sizes are shown below. These are 3429126372Snjlthe code and data sizes for the acpica.lib produced by the 3430126372SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 3431126372Snjlinclude 3432126372Snjlany ACPI driver or OSPM code. The debug version of the code 3433126372Snjlincludes the debug output trace mechanism and has a larger code 3434126372Snjland data size. Note that these values will vary depending on the 3435126372Snjlefficiency of the compiler and the compiler options used during 3436126372Snjlgeneration. 3437102550Siwasaki 3438102550Siwasaki Previous Release (10_18_01): 3439114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 3440114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 3441102550Siwasaki 3442102550Siwasaki Current Release: 3443114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 3444114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 3445102550Siwasaki 3446102550Siwasaki 2) Linux: 3447102550Siwasaki 3448102550SiwasakiImproved /proc processor output (Pavel Machek) Re-added 3449102550SiwasakiMODULE_LICENSE("GPL") to all modules. 3450102550Siwasaki 3451102550Siwasaki 3) ASL Compiler version X2030: 3452102550Siwasaki 3453104470SiwasakiDuplicate FieldUnit names within a scope are now detected and 3454104470Siwasakiflagged as errors. 3455102550Siwasaki 3456102550Siwasaki 4) Documentation: 3457102550Siwasaki 3458104470SiwasakiProgrammer Reference updated to reflect OSL and address space 3459104470Siwasakihandler interface changes described above. 3460102550Siwasaki 3461102550Siwasaki---------------------------------------- 3462102550SiwasakiSummary of changes for this label: 10_18_01 3463102550Siwasaki 3464102550SiwasakiACPI CA Core Subsystem: 3465102550Siwasaki 3466102550SiwasakiFixed a problem with the internal object reference count 3467126372Snjlmechanism 3468126372Snjlthat occasionally caused premature object deletion. This resolves 3469126372Snjlall of the outstanding problem reports where an object is deleted 3470126372Snjlin the middle of an interpreter evaluation. Although this 3471126372Snjlproblem 3472126372Snjlonly showed up in rather obscure cases, the solution to the 3473126372Snjlproblem involved an adjustment of all reference counts involving 3474126372Snjlobjects attached to namespace nodes. 3475102550Siwasaki 3476102550SiwasakiFixed a problem with Field support in the interpreter where 3477114237Snjlwriting to an aligned field whose length is an exact multiple (2 3478114237Snjlor greater) of the field access granularity would cause an 3479126372Snjlattempt 3480126372Snjlto write beyond the end of the field. 3481102550Siwasaki 3482102550SiwasakiThe top level AML opcode execution functions within the 3483102550Siwasakiinterpreter have been renamed with a more meaningful and 3484102550Siwasakiconsistent naming convention. The modules exmonad.c and 3485102550Siwasakiexdyadic.c were eliminated. New modules are exoparg1.c, 3486102550Siwasakiexoparg2.c, exoparg3.c, and exoparg6.c. 3487102550Siwasaki 3488114237SnjlSupport for the ACPI 2.0 "Mid" ASL operator has been implemented. 3489102550Siwasaki 3490114237SnjlFixed a problem where the AML debugger was causing some internal 3491114237Snjlobjects to not be deleted during subsystem termination. 3492102550Siwasaki 3493104470SiwasakiFixed a problem with the external AcpiEvaluateObject interface 3494104470Siwasakiwhere the subsystem would fault if the named object to be 3495104470Siwasakievaluated refered to a constant such as Zero, Ones, etc. 3496102550Siwasaki 3497102550SiwasakiFixed a problem with IndexFields and BankFields where the 3498114237Snjlsubsystem would fault if the index, data, or bank registers were 3499114237Snjlnot defined in the same scope as the field itself. 3500102550Siwasaki 3501104470SiwasakiAdded printf format string checking for compilers that support 3502104470Siwasakithis feature. Corrected more than 50 instances of issues with 3503104470Siwasakiformat specifiers within invocations of ACPI_DEBUG_PRINT 3504104470Siwasakithroughout the core subsystem code. 3505102550Siwasaki 3506104470SiwasakiThe ASL "Revision" operator now returns the ACPI support level 3507104470Siwasakiimplemented in the core - the value "2" since the ACPI 2.0 3508126372Snjlsupport 3509126372Snjlis more than 50% implemented. 3510102550Siwasaki 3511114237SnjlEnhanced the output of the AML debugger "dump namespace" command 3512114237Snjlto output in a more human-readable form. 3513102550Siwasaki 3514114237SnjlCurrent core subsystem library code sizes are shown below. These 3515114237Snjlare the code and data sizes for the acpica.lib produced by the 3516114237SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 3517126372Snjlinclude 3518126372Snjlany ACPI driver or OSPM code. The debug version of the code 3519126372Snjlincludes the full debug trace mechanism -- leading to a much 3520114237Snjllarger code and data size. Note that these values will vary 3521114237Snjldepending on the efficiency of the compiler and the compiler 3522114237Snjloptions used during generation. 3523102550Siwasaki 3524102550Siwasaki Previous Label (09_20_01): 3525114237Snjl Non-Debug Version: 65K Code, 5K Data, 70K Total 3526114237Snjl Debug Version: 138K Code, 58K Data, 196K Total 3527102550Siwasaki 3528102550Siwasaki This Label: 3529102550Siwasaki 3530114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 3531114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 3532114237Snjl 3533102550SiwasakiLinux: 3534102550Siwasaki 3535104470SiwasakiImplemented a "Bad BIOS Blacklist" to track machines that have 3536104470Siwasakiknown ASL/AML problems. 3537102550Siwasaki 3538102550SiwasakiEnhanced the /proc interface for the thermal zone driver and 3539126372Snjladded 3540126372Snjlsupport for _HOT (the critical suspend trip point). The 'info' 3541126372Snjlfile now includes threshold/policy information, and allows 3542126372Snjlsetting 3543126372Snjlof _SCP (cooling preference) and _TZP (polling frequency) values 3544126372Snjlto the 'info' file. Examples: "echo tzp=5 > info" sets the 3545126372Snjlpolling 3546126372Snjlfrequency to 5 seconds, and "echo scp=1 > info" sets the cooling 3547126372Snjlpreference to the passive/quiet mode (if supported by the ASL). 3548102550Siwasaki 3549104470SiwasakiImplemented a workaround for a gcc bug that resuted in an OOPs 3550104470Siwasakiwhen loading the control method battery driver. 3551102550Siwasaki 3552102550Siwasaki ---------------------------------------- 3553102550SiwasakiSummary of changes for this label: 09_20_01 3554102550Siwasaki 3555102550Siwasaki ACPI CA Core Subsystem: 3556102550Siwasaki 3557104470SiwasakiThe AcpiEnableEvent and AcpiDisableEvent interfaces have been 3558104470Siwasakimodified to allow individual GPE levels to be flagged as wake- 3559114237Snjlenabled (i.e., these GPEs are to remain enabled when the platform 3560114237Snjlsleeps.) 3561102550Siwasaki 3562104470SiwasakiThe AcpiEnterSleepState and AcpiLeaveSleepState interfaces now 3563104470Siwasakisupport wake-enabled GPEs. This means that upon entering the 3564104470Siwasakisleep state, all GPEs that are not wake-enabled are disabled. 3565104470SiwasakiWhen leaving the sleep state, these GPEs are reenabled. 3566102550Siwasaki 3567114237SnjlA local double-precision divide/modulo module has been added to 3568114237Snjlenhance portability to OS kernels where a 64-bit math library is 3569114237Snjlnot available. The new module is "utmath.c". 3570102550Siwasaki 3571104470SiwasakiSeveral optimizations have been made to reduce the use of CPU 3572114237Snjlstack. Originally over 2K, the maximum stack usage is now below 3573114237Snjl2K at 1860 bytes (1.82k) 3574102550Siwasaki 3575114237SnjlFixed a problem with the AcpiGetFirmwareTable interface where the 3576114237Snjlroot table pointer was not mapped into a logical address 3577104470Siwasakiproperly. 3578102550Siwasaki 3579104470SiwasakiFixed a problem where a NULL pointer was being dereferenced in 3580126372Snjlthe 3581126372Snjlinterpreter code for the ASL Notify operator. 3582102550Siwasaki 3583102550SiwasakiFixed a problem where the use of the ASL Revision operator 3584114237Snjlreturned an error. This operator now returns the current version 3585114237Snjlof the ACPI CA core subsystem. 3586102550Siwasaki 3587114237SnjlFixed a problem where objects passed as control method parameters 3588114237Snjlto AcpiEvaluateObject were always deleted at method termination. 3589114237SnjlHowever, these objects may end up being stored into the namespace 3590114237Snjlby the called method. The object reference count mechanism was 3591114237Snjlapplied to these objects instead of a force delete. 3592102550Siwasaki 3593114237SnjlFixed a problem where static strings or buffers (contained in the 3594114237SnjlAML code) that are declared as package elements within the ASL 3595114237Snjlcode could cause a fault because the interpreter would attempt to 3596114237Snjldelete them. These objects are now marked with the "static 3597114237Snjlobject" flag to prevent any attempt to delete them. 3598102550Siwasaki 3599114237SnjlImplemented an interpreter optimization to use operands directly 3600114237Snjlfrom the state object instead of extracting the operands to local 3601114237Snjlvariables. This reduces stack use and code size, and improves 3602114237Snjlperformance. 3603102550Siwasaki 3604102550SiwasakiThe module exxface.c was eliminated as it was an unnecessary 3605126372Snjlextra 3606126372Snjllayer of code. 3607102550Siwasaki 3608114237SnjlCurrent core subsystem library code sizes are shown below. These 3609114237Snjlare the code and data sizes for the acpica.lib produced by the 3610114237SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 3611126372Snjlinclude 3612126372Snjlany ACPI driver or OSPM code. The debug version of the code 3613126372Snjlincludes the full debug trace mechanism -- leading to a much 3614114237Snjllarger code and data size. Note that these values will vary 3615114237Snjldepending on the efficiency of the compiler and the compiler 3616114237Snjloptions used during generation. 3617102550Siwasaki 3618102550Siwasaki Non-Debug Version: 65K Code, 5K Data, 70K Total 3619114237Snjl(Previously 69K) Debug Version: 138K Code, 58K Data, 196K 3620114237SnjlTotal (Previously 195K) 3621102550Siwasaki 3622102550SiwasakiLinux: 3623102550Siwasaki 3624114237SnjlSupport for ACPI 2.0 64-bit integers has been added. All ACPI 3625114237SnjlInteger objects are now 64 bits wide 3626102550Siwasaki 3627114237SnjlAll Acpi data types and structures are now in lower case. Only 3628114237SnjlAcpi macros are upper case for differentiation. 3629102550Siwasaki 3630102550Siwasaki Documentation: 3631102550Siwasaki 3632102550SiwasakiChanges to the external interfaces as described above. 3633102550Siwasaki 3634102550Siwasaki ---------------------------------------- 3635102550SiwasakiSummary of changes for this label: 08_31_01 3636102550Siwasaki 3637102550Siwasaki ACPI CA Core Subsystem: 3638102550Siwasaki 3639114237SnjlA bug with interpreter implementation of the ASL Divide operator 3640114237Snjlwas found and fixed. The implicit function return value (not the 3641114237Snjlexplicit store operands) was returning the remainder instead of 3642114237Snjlthe quotient. This was a longstanding bug and it fixes several 3643114237Snjlknown outstanding issues on various platforms. 3644102550Siwasaki 3645104470SiwasakiThe ACPI_DEBUG_PRINT and function trace entry/exit macros have 3646104470Siwasakibeen further optimized for size. There are 700 invocations of 3647126372Snjlthe 3648126372SnjlDEBUG_PRINT macro alone, so each optimization reduces the size of 3649126372Snjlthe debug version of the subsystem significantly. 3650102550Siwasaki 3651114237SnjlA stack trace mechanism has been implemented. The maximum stack 3652114237Snjlusage is about 2K on 32-bit platforms. The debugger command 3653126372Snjl"stat 3654126372Snjlstack" will display the current maximum stack usage. 3655102550Siwasaki 3656114237SnjlAll public symbols and global variables within the subsystem are 3657114237Snjlnow prefixed with the string "Acpi". This keeps all of the 3658114237Snjlsymbols grouped together in a kernel map, and avoids conflicts 3659114237Snjlwith other kernel subsystems. 3660102550Siwasaki 3661114237SnjlMost of the internal fixed lookup tables have been moved into the 3662114237Snjlcode segment via the const operator. 3663102550Siwasaki 3664104470SiwasakiSeveral enhancements have been made to the interpreter to both 3665104470Siwasakireduce the code size and improve performance. 3666102550Siwasaki 3667114237SnjlCurrent core subsystem library code sizes are shown below. These 3668114237Snjlare the code and data sizes for the acpica.lib produced by the 3669114237SnjlMicrosoft Visual C++ 6.0 compiler, and these values do not 3670126372Snjlinclude 3671126372Snjlany ACPI driver or OSPM code. The debug version of the code 3672126372Snjlincludes the full debug trace mechanism which contains over 700 3673126372Snjlinvocations of the DEBUG_PRINT macro, 500 function entry macro 3674126372Snjlinvocations, and over 900 function exit macro invocations -- 3675126372Snjlleading to a much larger code and data size. Note that these 3676114237Snjlvalues will vary depending on the efficiency of the compiler and 3677114237Snjlthe compiler options used during generation. 3678102550Siwasaki 3679102550Siwasaki Non-Debug Version: 64K Code, 5K Data, 69K Total 3680102550SiwasakiDebug Version: 137K Code, 58K Data, 195K Total 3681102550Siwasaki 3682102550Siwasaki Linux: 3683102550Siwasaki 3684104470SiwasakiImplemented wbinvd() macro, pending a kernel-wide definition. 3685102550Siwasaki 3686102550SiwasakiFixed /proc/acpi/event to handle poll() and short reads. 3687102550Siwasaki 3688102550Siwasaki ASL Compiler, version X2026: 3689102550Siwasaki 3690104470SiwasakiFixed a problem introduced in the previous label where the AML 3691104470Siwasakicode emitted for package objects produced packages with zero 3692104470Siwasakilength. 3693102550Siwasaki 3694102550Siwasaki ---------------------------------------- 3695102550SiwasakiSummary of changes for this label: 08_16_01 3696102550Siwasaki 3697102550SiwasakiACPI CA Core Subsystem: 3698102550Siwasaki 3699114237SnjlThe following ACPI 2.0 ASL operators have been implemented in the 3700114237SnjlAML interpreter (These are already supported by the Intel ASL 3701114237Snjlcompiler): ToDecimalString, ToHexString, ToString, ToInteger, 3702126372Snjland 3703126372SnjlToBuffer. Support for 64-bit AML constants is implemented in the 3704126372SnjlAML parser, debugger, and disassembler. 3705102550Siwasaki 3706114237SnjlThe internal memory tracking mechanism (leak detection code) has 3707114237Snjlbeen upgraded to reduce the memory overhead (a separate tracking 3708114237Snjlblock is no longer allocated for each memory allocation), and now 3709114237Snjlsupports all of the internal object caches. 3710102550Siwasaki 3711114237SnjlThe data structures and code for the internal object caches have 3712114237Snjlbeen coelesced and optimized so that there is a single cache and 3713114237Snjlmemory list data structure and a single group of functions that 3714114237Snjlimplement generic cache management. This has reduced the code 3715114237Snjlsize in both the debug and release versions of the subsystem. 3716102550Siwasaki 3717102550SiwasakiThe DEBUG_PRINT macro(s) have been optimized for size and 3718126372Snjlreplaced 3719126372Snjlby ACPI_DEBUG_PRINT. The syntax for this macro is slightly 3720126372Snjldifferent, because it generates a single call to an internal 3721126372Snjlfunction. This results in a savings of about 90 bytes per 3722126372Snjlinvocation, resulting in an overall code and data savings of 3723126372Snjlabout 3724126372Snjl16% in the debug version of the subsystem. 3725102550Siwasaki 3726102550Siwasaki Linux: 3727102550Siwasaki 3728114237SnjlFixed C3 disk corruption problems and re-enabled C3 on supporting 3729114237Snjlmachines. 3730102550Siwasaki 3731102550SiwasakiIntegrated low-level sleep code by Patrick Mochel. 3732102550Siwasaki 3733102550SiwasakiFurther tweaked source code Linuxization. 3734102550Siwasaki 3735102550SiwasakiOther minor fixes. 3736102550Siwasaki 3737102550Siwasaki ASL Compiler: 3738102550Siwasaki 3739114237SnjlSupport for ACPI 2.0 variable length packages is fixed/completed. 3740102550Siwasaki 3741114237SnjlFixed a problem where the optional length parameter for the ACPI 3742114237Snjl2.0 ToString operator. 3743102550Siwasaki 3744114237SnjlFixed multiple extraneous error messages when a syntax error is 3745114237Snjldetected within the declaration line of a control method. 3746102550Siwasaki 3747102550Siwasaki ---------------------------------------- 3748102550SiwasakiSummary of changes for this label: 07_17_01 3749102550Siwasaki 3750102550SiwasakiACPI CA Core Subsystem: 3751102550Siwasaki 3752104470SiwasakiAdded a new interface named AcpiGetFirmwareTable to obtain any 3753114237SnjlACPI table via the ACPI signature. The interface can be called 3754126372Snjlat 3755126372Snjlany time during kernel initialization, even before the kernel 3756114237Snjlvirtual memory manager is initialized and paging is enabled. 3757126372SnjlThis 3758126372Snjlallows kernel subsystems to obtain ACPI tables very early, even 3759126372Snjlbefore the ACPI CA subsystem is initialized. 3760102550Siwasaki 3761104470SiwasakiFixed a problem where Fields defined with the AnyAcc attribute 3762104470Siwasakicould be resolved to the incorrect address under the following 3763114237Snjlconditions: 1) the field width is larger than 8 bits and 2) the 3764114237Snjlparent operation region is not defined on a DWORD boundary. 3765102550Siwasaki 3766114237SnjlFixed a problem where the interpreter is not being locked during 3767114237Snjlnamespace initialization (during execution of the _INI control 3768114237Snjlmethods), causing an error when an attempt is made to release it 3769114237Snjllater. 3770102550Siwasaki 3771104470SiwasakiACPI 2.0 support in the AML Interpreter has begun and will be 3772114237Snjlongoing throughout the rest of this year. In this label, The Mod 3773114237Snjloperator is implemented. 3774102550Siwasaki 3775102550SiwasakiAdded a new data type to contain full PCI addresses named 3776102550SiwasakiACPI_PCI_ID. This structure contains the PCI Segment, Bus, 3777126372SnjlDevice, 3778126372Snjland Function values. 3779102550Siwasaki 3780102550Siwasaki Linux: 3781102550Siwasaki 3782102550SiwasakiEnhanced the Linux version of the source code to change most 3783102550Siwasakicapitalized ACPI type names to lowercase. For example, all 3784114237Snjlinstances of ACPI_STATUS are changed to acpi_status. This will 3785114237Snjlresult in a large diff, but the change is strictly cosmetic and 3786114237Snjlaligns the CA code closer to the Linux coding standard. 3787102550Siwasaki 3788102550SiwasakiOSL Interfaces: 3789102550Siwasaki 3790114237SnjlThe interfaces to the PCI configuration space have been changed 3791126372Snjlto 3792126372Snjladd the PCI Segment number and to split the single 32-bit 3793126372Snjlcombined 3794126372SnjlDeviceFunction field into two 16-bit fields. This was 3795114237Snjlaccomplished by moving the four values that define an address in 3796114237SnjlPCI configuration space (segment, bus, device, and function) to 3797114237Snjlthe new ACPI_PCI_ID structure. 3798102550Siwasaki 3799104470SiwasakiThe changes to the PCI configuration space interfaces led to a 3800104470Siwasakireexamination of the complete set of address space access 3801114237Snjlinterfaces for PCI, I/O, and Memory. The previously existing 18 3802114237Snjlinterfaces have proven difficult to maintain (any small change 3803114237Snjlmust be propagated across at least 6 interfaces) and do not 3804126372Snjleasily 3805126372Snjlallow for future expansion to 64 bits if necessary. Also, on 3806126372Snjlsome 3807126372Snjlsystems, it would not be appropriate to demultiplex the access 3808126372Snjlwidth (8, 16, 32,or 64) before calling the OSL if the 3809114237Snjlcorresponding native OS interfaces contain a similar access width 3810114237Snjlparameter. For these reasons, the 18 address space interfaces 3811114237Snjlhave been replaced by these 6 new ones: 3812102550Siwasaki 3813102550SiwasakiAcpiOsReadPciConfiguration 3814102550SiwasakiAcpiOsWritePciConfiguration 3815102550SiwasakiAcpiOsReadMemory 3816102550SiwasakiAcpiOsWriteMemory 3817102550SiwasakiAcpiOsReadPort 3818102550SiwasakiAcpiOsWritePort 3819102550Siwasaki 3820114237SnjlAdded a new interface named AcpiOsGetRootPointer to allow the OSL 3821114237Snjlto perform the platform and/or OS-specific actions necessary to 3822114237Snjlobtain the ACPI RSDP table pointer. On IA-32 platforms, this 3823114237Snjlinterface will simply call down to the CA core to perform the low- 3824114237Snjlmemory search for the table. On IA-64, the RSDP is obtained from 3825114237SnjlEFI. Migrating this interface to the OSL allows the CA core to 3826114237Snjlremain OS and platform independent. 3827102550Siwasaki 3828104470SiwasakiAdded a new interface named AcpiOsSignal to provide a generic 3829114237Snjl"function code and pointer" interface for various miscellaneous 3830114237Snjlsignals and notifications that must be made to the host OS. The 3831114237Snjlfirst such signals are intended to support the ASL Fatal and 3832114237SnjlBreakpoint operators. In the latter case, the AcpiOsBreakpoint 3833114237Snjlinterface has been obsoleted. 3834102550Siwasaki 3835102550SiwasakiThe definition of the AcpiFormatException interface has been 3836114237Snjlchanged to simplify its use. The caller no longer must supply a 3837114237Snjlbuffer to the call; A pointer to a const string is now returned 3838114237Snjldirectly. This allows the call to be easily used in printf 3839114237Snjlstatements, etc. since the caller does not have to manage a local 3840114237Snjlbuffer. 3841102550Siwasaki 3842114237Snjl 3843102550Siwasaki ASL Compiler, Version X2025: 3844102550Siwasaki 3845114237SnjlThe ACPI 2.0 Switch/Case/Default operators have been implemented 3846114237Snjland are fully functional. They will work with all ACPI 1.0 3847114237Snjlinterpreters, since the operators are simply translated to 3848126372SnjlIf/Else 3849126372Snjlpairs. 3850102550Siwasaki 3851104470SiwasakiThe ACPI 2.0 ElseIf operator is implemented and will also work 3852104470Siwasakiwith 1.0 interpreters, for the same reason. 3853102550Siwasaki 3854114237SnjlImplemented support for ACPI 2.0 variable-length packages. These 3855114237Snjlpackages have a separate opcode, and their size is determined by 3856114237Snjlthe interpreter at run-time. 3857102550Siwasaki 3858114237SnjlDocumentation The ACPI CA Programmer Reference has been updated 3859126372Snjlto 3860126372Snjlreflect the new interfaces and changes to existing interfaces. 3861102550Siwasaki 3862102550Siwasaki ------------------------------------------ 3863102550SiwasakiSummary of changes for this label: 06_15_01 3864102550Siwasaki 3865102550Siwasaki ACPI CA Core Subsystem: 3866102550Siwasaki 3867102550SiwasakiFixed a problem where a DWORD-accessed field within a Buffer 3868114237Snjlobject would get its byte address inadvertently rounded down to 3869114237Snjlthe nearest DWORD. Buffers are always Byte-accessible. 3870102550Siwasaki 3871102550Siwasaki ASL Compiler, version X2024: 3872102550Siwasaki 3873114237SnjlFixed a problem where the Switch() operator would either fault or 3874114237Snjlhang the compiler. Note however, that the AML code for this ACPI 3875114237Snjl2.0 operator is not yet implemented. 3876102550Siwasaki 3877114237SnjlCompiler uses the new AcpiOsGetTimer interface to obtain compile 3878114237Snjltimings. 3879102550Siwasaki 3880114237SnjlImplementation of the CreateField operator automatically converts 3881114237Snjla reference to a named field within a resource descriptor from a 3882114237Snjlbyte offset to a bit offset if required. 3883102550Siwasaki 3884102550SiwasakiAdded some missing named fields from the resource descriptor 3885104470Siwasakisupport. These are the names that are automatically created by 3886126372Snjlthe 3887126372Snjlcompiler to reference fields within a descriptor. They are only 3888126372Snjlvalid at compile time and are not passed through to the AML 3889114237Snjlinterpreter. 3890102550Siwasaki 3891104470SiwasakiResource descriptor named fields are now typed as Integers and 3892104470Siwasakisubject to compile-time typechecking when used in expressions. 3893102550Siwasaki 3894102550Siwasaki ------------------------------------------ 3895102550SiwasakiSummary of changes for this label: 05_18_01 3896102550Siwasaki 3897102550Siwasaki ACPI CA Core Subsystem: 3898102550Siwasaki 3899114237SnjlFixed a couple of problems in the Field support code where bits 3900114237Snjlfrom adjacent fields could be returned along with the proper 3901126372Snjlfield 3902126372Snjlbits. Restructured the field support code to improve performance, 3903126372Snjlreadability and maintainability. 3904102550Siwasaki 3905114237SnjlNew DEBUG_PRINTP macro automatically inserts the procedure name 3906114237Snjlinto the output, saving hundreds of copies of procedure name 3907114237Snjlstrings within the source, shrinking the memory footprint of the 3908114237Snjldebug version of the core subsystem. 3909102550Siwasaki 3910102550Siwasaki Source Code Structure: 3911102550Siwasaki 3912104470SiwasakiThe source code directory tree was restructured to reflect the 3913114237Snjlcurrent organization of the component architecture. Some files 3914114237Snjland directories have been moved and/or renamed. 3915102550Siwasaki 3916102550Siwasaki Linux: 3917102550Siwasaki 3918102550SiwasakiFixed leaking kacpidpc processes. 3919102550Siwasaki 3920102550SiwasakiFixed queueing event data even when /proc/acpi/event is not 3921102550Siwasakiopened. 3922102550Siwasaki 3923102550Siwasaki ASL Compiler, version X2020: 3924102550Siwasaki 3925114237SnjlMemory allocation performance enhancement - over 24X compile time 3926114237Snjlimprovement on large ASL files. Parse nodes and namestring 3927114237Snjlbuffers are now allocated from a large internal compiler buffer. 3928102550Siwasaki 3929102550SiwasakiThe temporary .SRC file is deleted unless the "-s" option is 3930102550Siwasakispecified 3931102550Siwasaki 3932104470SiwasakiThe "-d" debug output option now sends all output to the .DBG 3933126372Snjlfile 3934126372Snjlinstead of the console. 3935102550Siwasaki 3936102550Siwasaki"External" second parameter is now optional 3937102550Siwasaki 3938102550Siwasaki"ElseIf" syntax now properly allows the predicate 3939102550Siwasaki 3940102550SiwasakiLast operand to "Load" now recognized as a Target operand 3941102550Siwasaki 3942102550SiwasakiDebug object can now be used anywhere as a normal object. 3943102550Siwasaki 3944102550SiwasakiResourceTemplate now returns an object of type BUFFER 3945102550Siwasaki 3946102550SiwasakiEISAID now returns an object of type INTEGER 3947102550Siwasaki 3948102550Siwasaki"Index" now works with a STRING operand 3949102550Siwasaki 3950102550Siwasaki"LoadTable" now accepts optional parameters 3951102550Siwasaki 3952102550Siwasaki"ToString" length parameter is now optional 3953102550Siwasaki 3954102550Siwasaki"Interrupt (ResourceType," parse error fixed. 3955102550Siwasaki 3956104470Siwasaki"Register" with a user-defined region space parse error fixed 3957102550Siwasaki 3958114237SnjlEscaped backslash at the end of a string ("\\") scan/parse error 3959114237Snjlfixed 3960102550Siwasaki 3961102550Siwasaki"Revision" is now an object of type INTEGER. 3962102550Siwasaki 3963102550Siwasaki 3964102550Siwasaki 3965102550Siwasaki------------------------------------------ 3966102550SiwasakiSummary of changes for this label: 05_02_01 3967102550Siwasaki 3968102550SiwasakiLinux: 3969102550Siwasaki 3970102550Siwasaki/proc/acpi/event now blocks properly. 3971102550Siwasaki 3972102550SiwasakiRemoved /proc/sys/acpi. You can still dump your DSDT from 3973102550Siwasaki/proc/acpi/dsdt. 3974102550Siwasaki 3975102550Siwasaki ACPI CA Core Subsystem: 3976102550Siwasaki 3977104470SiwasakiFixed a problem introduced in the previous label where some of 3978126372Snjlthe 3979126372Snjl"small" resource descriptor types were not recognized. 3980102550Siwasaki 3981102550SiwasakiImproved error messages for the case where an ASL Field is 3982126372Snjloutside 3983126372Snjlthe range of the parent operation region. 3984102550Siwasaki 3985102550Siwasaki ASL Compiler, version X2018: 3986102550Siwasaki 3987102550SiwasakiAdded error detection for ASL Fields that extend beyond the 3988126372Snjllength 3989126372Snjlof the parent operation region (only if the length of the region 3990126372Snjlis known at compile time.) This includes fields that have a 3991126372Snjlminimum access width that is smaller than the parent region, and 3992126372Snjlindividual field units that are partially or entirely beyond the 3993126372Snjlextent of the parent. 3994102550Siwasaki 3995102550Siwasaki 3996102550Siwasaki 3997102550Siwasaki------------------------------------------ 3998102550SiwasakiSummary of changes for this label: 04_27_01 3999102550Siwasaki 4000102550Siwasaki ACPI CA Core Subsystem: 4001102550Siwasaki 4002104470SiwasakiFixed a problem where the namespace mutex could be released at 4003126372Snjlthe 4004126372Snjlwrong time during execution of AcpiRemoveAddressSpaceHandler. 4005102550Siwasaki 4006104470SiwasakiAdded optional thread ID output for debug traces, to simplify 4007114237Snjldebugging of multiple threads. Added context switch notification 4008114237Snjlwhen the debug code realizes that a different thread is now 4009114237Snjlexecuting ACPI code. 4010102550Siwasaki 4011114237SnjlSome additional external data types have been prefixed with the 4012114237Snjlstring "ACPI_" for consistency. This may effect existing code. 4013114237SnjlThe data types affected are the external callback typedefs - 4014126372Snjle.g., 4015126372SnjlWALK_CALLBACK becomes ACPI_WALK_CALLBACK. 4016102550Siwasaki 4017102550Siwasaki Linux: 4018102550Siwasaki 4019102550SiwasakiFixed an issue with the OSL semaphore implementation where a 4020102550Siwasakithread was waking up with an error from receiving a SIGCHLD 4021102550Siwasakisignal. 4022102550Siwasaki 4023114237SnjlLinux version of ACPI CA now uses the system C library for string 4024114237Snjlmanipulation routines instead of a local implementation. 4025102550Siwasaki 4026102550SiwasakiCleaned up comments and removed TBDs. 4027102550Siwasaki 4028102550Siwasaki ASL Compiler, version X2017: 4029102550Siwasaki 4030102550SiwasakiEnhanced error detection and reporting for all file I/O 4031102550Siwasakioperations. 4032102550Siwasaki 4033102550Siwasaki Documentation: 4034102550Siwasaki 4035102550SiwasakiProgrammer Reference updated to version 1.06. 4036102550Siwasaki 4037102550Siwasaki 4038102550Siwasaki 4039102550Siwasaki------------------------------------------ 4040102550SiwasakiSummary of changes for this label: 04_13_01 4041102550Siwasaki 4042102550Siwasaki ACPI CA Core Subsystem: 4043102550Siwasaki 4044102550SiwasakiRestructured support for BufferFields and RegionFields. 4045104470SiwasakiBankFields support is now fully operational. All known 32-bit 4046114237Snjllimitations on field sizes have been removed. Both BufferFields 4047114237Snjland (Operation) RegionFields are now supported by the same field 4048114237Snjlmanagement code. 4049102550Siwasaki 4050114237SnjlResource support now supports QWORD address and IO resources. The 4051114237Snjl16/32/64 bit address structures and the Extended IRQ structure 4052114237Snjlhave been changed to properly handle Source Resource strings. 4053102550Siwasaki 4054114237SnjlA ThreadId of -1 is now used to indicate a "mutex not acquired" 4055114237Snjlcondition internally and must never be returned by 4056126372SnjlAcpiOsThreadId. 4057126372SnjlThis reserved value was changed from 0 since Unix systems allow a 4058126372Snjlthread ID of 0. 4059102550Siwasaki 4060102550SiwasakiLinux: 4061102550Siwasaki 4062102550SiwasakiDriver code reorganized to enhance portability 4063102550Siwasaki 4064102550SiwasakiAdded a kernel configuration option to control ACPI_DEBUG 4065102550Siwasaki 4066102550SiwasakiFixed the EC driver to honor _GLK. 4067102550Siwasaki 4068102550SiwasakiASL Compiler, version X2016: 4069102550Siwasaki 4070114237SnjlFixed support for the "FixedHw" keyword. Previously, the FixedHw 4071114237Snjladdress space was set to 0, not 0x7f as it should be. 4072102550Siwasaki 4073102550Siwasaki ------------------------------------------ 4074102550SiwasakiSummary of changes for this label: 03_13_01 4075102550Siwasaki 4076102550Siwasaki ACPI CA Core Subsystem: 4077102550Siwasaki 4078104470SiwasakiDuring ACPI initialization, the _SB_._INI method is now run if 4079104470Siwasakipresent. 4080102550Siwasaki 4081102550SiwasakiNotify handler fix - notifies are deferred until the parent 4082126372Snjlmethod 4083126372Snjlcompletes execution. This fixes the "mutex already acquired" 4084126372Snjlissue seen occasionally. 4085102550Siwasaki 4086104470SiwasakiPart of the "implicit conversion" rules in ACPI 2.0 have been 4087114237Snjlfound to cause compatibility problems with existing ASL/AML. The 4088114237Snjlconvert "result-to-target-type" implementation has been removed 4089114237Snjlfor stores to method Args and Locals. Source operand conversion 4090114237Snjlis still fully implemented. Possible changes to ACPI 2.0 4091114237Snjlspecification pending. 4092102550Siwasaki 4093104470SiwasakiFix to AcpiRsCalculatePciRoutingTableLength to return correct 4094104470Siwasakilength. 4095102550Siwasaki 4096102550SiwasakiFix for compiler warnings for 64-bit compiles. 4097102550Siwasaki 4098102550Siwasaki Linux: 4099102550Siwasaki 4100102550Siwasaki/proc output aligned for easier parsing. 4101102550Siwasaki 4102102550SiwasakiRelease-version compile problem fixed. 4103102550Siwasaki 4104104470SiwasakiNew kernel configuration options documented in Configure.help. 4105102550Siwasaki 4106102550SiwasakiIBM 600E - Fixed Sleep button may generate "Invalid <NULL> 4107102550Siwasakicontext" message. 4108102550Siwasaki 4109102550Siwasaki OSPM: 4110102550Siwasaki 4111102550SiwasakiPower resource driver integrated with bus manager. 4112102550Siwasaki 4113102550SiwasakiFixed kernel fault during active cooling for thermal zones. 4114102550Siwasaki 4115102550SiwasakiSource Code: 4116102550Siwasaki 4117102550SiwasakiThe source code tree has been restructured. 4118102550Siwasaki 4119102550Siwasaki 4120102550Siwasaki 4121102550Siwasaki------------------------------------------ 4122102550SiwasakiSummary of changes for this label: 03_02_01 4123102550Siwasaki 4124102550Siwasaki Linux OS Services Layer (OSL): 4125102550Siwasaki 4126102550SiwasakiMajor revision of all Linux-specific code. 4127102550Siwasaki 4128102550SiwasakiModularized all ACPI-specific drivers. 4129102550Siwasaki 4130102550SiwasakiAdded new thermal zone and power resource drivers. 4131102550Siwasaki 4132114237SnjlRevamped /proc interface (new functionality is under /proc/acpi). 4133102550Siwasaki 4134102550SiwasakiNew kernel configuration options. 4135102550Siwasaki 4136102550Siwasaki Linux known issues: 4137102550Siwasaki 4138114237SnjlNew kernel configuration options not documented in Configure.help 4139114237Snjlyet. 4140102550Siwasaki 4141114237Snjl 4142102550SiwasakiModule dependencies not currently implemented. If used, they 4143102550Siwasakishould be loaded in this order: busmgr, power, ec, system, 4144102550Siwasakiprocessor, battery, ac_adapter, button, thermal. 4145102550Siwasaki 4146102550SiwasakiModules will not load if CONFIG_MODVERSION is set. 4147102550Siwasaki 4148102550SiwasakiIBM 600E - entering S5 may reboot instead of shutting down. 4149102550Siwasaki 4150104470SiwasakiIBM 600E - Sleep button may generate "Invalid <NULL> context" 4151104470Siwasakimessage. 4152102550Siwasaki 4153104470SiwasakiSome systems may fail with "execution mutex already acquired" 4154104470Siwasakimessage. 4155102550Siwasaki 4156102550Siwasaki ACPI CA Core Subsystem: 4157102550Siwasaki 4158114237SnjlAdded a new OSL Interface, AcpiOsGetThreadId. This was required 4159114237Snjlfor the deadlock detection code. Defined to return a non-zero, 4160126372Snjl32- 4161126372Snjlbit thread ID for the currently executing thread. May be a non- 4162126372Snjlzero constant integer on single-thread systems. 4163102550Siwasaki 4164104470SiwasakiImplemented deadlock detection for internal subsystem mutexes. 4165126372SnjlWe 4166126372Snjlmay add conditional compilation for this code (debug only) later. 4167102550Siwasaki 4168104470SiwasakiASL/AML Mutex object semantics are now fully supported. This 4169114237Snjlincludes multiple acquires/releases by owner and support for the 4170114237SnjlMutex SyncLevel parameter. 4171102550Siwasaki 4172102550SiwasakiA new "Force Release" mechanism automatically frees all ASL 4173104470SiwasakiMutexes that have been acquired but not released when a thread 4174114237Snjlexits the interpreter. This forces conformance to the ACPI spec 4175114237Snjl("All mutexes must be released when an invocation exits") and 4176114237Snjlprevents deadlocked ASL threads. This mechanism can be expanded 4177114237Snjl(later) to monitor other resource acquisitions if OEM ASL code 4178114237Snjlcontinues to misbehave (which it will). 4179102550Siwasaki 4180104470SiwasakiSeveral new ACPI exception codes have been added for the Mutex 4181104470Siwasakisupport. 4182102550Siwasaki 4183104470SiwasakiRecursive method calls are now allowed and supported (the ACPI 4184114237Snjlspec does in fact allow recursive method calls.) The number of 4185114237Snjlrecursive calls is subject to the restrictions imposed by the 4186114237SnjlSERIALIZED method keyword and SyncLevel (ACPI 2.0) method 4187104470Siwasakiparameter. 4188102550Siwasaki 4189102550SiwasakiImplemented support for the SyncLevel parameter for control 4190102550Siwasakimethods (ACPI 2.0 feature) 4191102550Siwasaki 4192114237SnjlFixed a deadlock problem when multiple threads attempted to use 4193114237Snjlthe interpreter. 4194102550Siwasaki 4195102550SiwasakiFixed a problem where the string length of a String package 4196102550Siwasakielement was not always set in a package returned from 4197102550SiwasakiAcpiEvaluateObject. 4198102550Siwasaki 4199114237SnjlFixed a problem where the length of a String package element was 4200114237Snjlnot always included in the length of the overall package returned 4201114237Snjlfrom AcpiEvaluateObject. 4202102550Siwasaki 4203102550SiwasakiAdded external interfaces (Acpi*) to the ACPI debug memory 4204102550Siwasakimanager. This manager keeps a list of all outstanding 4205114237Snjlallocations, and can therefore detect memory leaks and attempts 4206126372Snjlto 4207126372Snjlfree memory blocks more than once. Useful for code such as the 4208114237Snjlpower manager, etc. May not be appropriate for device drivers. 4209114237SnjlPerformance with the debug code enabled is slow. 4210102550Siwasaki 4211102550SiwasakiThe ACPI Global Lock is now an optional hardware element. 4212102550Siwasaki 4213102550Siwasaki ASL Compiler Version X2015: 4214102550Siwasaki 4215102550SiwasakiIntegrated changes to allow the compiler to be generated on 4216102550Siwasakimultiple platforms. 4217102550Siwasaki 4218102550SiwasakiLinux makefile added to generate the compiler on Linux 4219102550Siwasaki 4220102550Siwasaki Source Code: 4221102550Siwasaki 4222102550SiwasakiAll platform-specific headers have been moved to their own 4223102550Siwasakisubdirectory, Include/Platform. 4224102550Siwasaki 4225102550SiwasakiNew source file added, Interpreter/ammutex.c 4226102550Siwasaki 4227102550SiwasakiNew header file, Include/acstruct.h 4228102550Siwasaki 4229102550Siwasaki Documentation: 4230102550Siwasaki 4231114237SnjlThe programmer reference has been updated for the following new 4232114237Snjlinterfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree 4233102550Siwasaki 4234102550Siwasaki ------------------------------------------ 4235102550SiwasakiSummary of changes for this label: 02_08_01 4236102550Siwasaki 4237102550SiwasakiCore ACPI CA Subsystem: Fixed a problem where an error was 4238104470Siwasakiincorrectly returned if the return resource buffer was larger 4239126372Snjlthan 4240126372Snjlthe actual data (in the resource interfaces). 4241102550Siwasaki 4242114237SnjlReferences to named objects within packages are resolved to the 4243114237Snjlfull pathname string before packages are returned directly (via 4244114237Snjlthe AcpiEvaluateObject interface) or indirectly via the resource 4245114237Snjlinterfaces. 4246102550Siwasaki 4247102550SiwasakiLinux OS Services Layer (OSL): 4248102550Siwasaki 4249102550SiwasakiImproved /proc battery interface. 4250102550Siwasaki 4251102550Siwasaki 4252104470SiwasakiAdded C-state debugging output and other miscellaneous fixes. 4253102550Siwasaki 4254102550SiwasakiASL Compiler Version X2014: 4255102550Siwasaki 4256114237SnjlAll defined method arguments can now be used as local variables, 4257114237Snjlincluding the ones that are not actually passed in as parameters. 4258114237SnjlThe compiler tracks initialization of the arguments and issues an 4259114237Snjlexception if they are used without prior assignment (just like 4260114237Snjllocals). 4261102550Siwasaki 4262104470SiwasakiThe -o option now specifies a filename prefix that is used for 4263126372Snjlall 4264126372Snjloutput files, including the AML output file. Otherwise, the 4265114237Snjldefault behavior is as follows: 1) the AML goes to the file 4266114237Snjlspecified in the DSDT. 2) all other output files use the input 4267114237Snjlsource filename as the base. 4268102550Siwasaki 4269102550Siwasaki ------------------------------------------ 4270102550SiwasakiSummary of changes for this label: 01_25_01 4271102550Siwasaki 4272114237SnjlCore ACPI CA Subsystem: Restructured the implementation of object 4273114237Snjlstore support within the interpreter. This includes support for 4274114237Snjlthe Store operator as well as any ASL operators that include a 4275114237Snjltarget operand. 4276102550Siwasaki 4277102550SiwasakiPartially implemented support for Implicit Result-to-Target 4278114237Snjlconversion. This is when a result object is converted on the fly 4279114237Snjlto the type of an existing target object. Completion of this 4280114237Snjlsupport is pending further analysis of the ACPI specification 4281114237Snjlconcerning this matter. 4282102550Siwasaki 4283114237SnjlCPU-specific code has been removed from the subsystem (hardware 4284114237Snjldirectory). 4285102550Siwasaki 4286102550SiwasakiNew Power Management Timer functions added 4287102550Siwasaki 4288114237SnjlLinux OS Services Layer (OSL): Moved system state transition code 4289114237Snjlto the core, fixed it, and modified Linux OSL accordingly. 4290102550Siwasaki 4291102550SiwasakiFixed C2 and C3 latency calculations. 4292102550Siwasaki 4293102550Siwasaki 4294114237SnjlWe no longer use the compilation date for the version message on 4295114237Snjlinitialization, but retrieve the version from 4296102550SiwasakiAcpiGetSystemInfo(). 4297102550Siwasaki 4298102550SiwasakiIncorporated for fix Sony VAIO machines. 4299102550Siwasaki 4300104470SiwasakiDocumentation: The Programmer Reference has been updated and 4301104470Siwasakireformatted. 4302102550Siwasaki 4303102550Siwasaki 4304102550SiwasakiASL Compiler: Version X2013: Fixed a problem where the line 4305102550Siwasakinumbering and error reporting could get out of sync in the 4306102550Siwasakipresence of multiple include files. 4307102550Siwasaki 4308102550Siwasaki ------------------------------------------ 4309102550SiwasakiSummary of changes for this label: 01_15_01 4310102550Siwasaki 4311102550SiwasakiCore ACPI CA Subsystem: 4312102550Siwasaki 4313114237SnjlImplemented support for type conversions in the execution of the 4314114237SnjlASL Concatenate operator (The second operand is converted to 4315114237Snjlmatch the type of the first operand before concatenation.) 4316102550Siwasaki 4317102550SiwasakiSupport for implicit source operand conversion is partially 4318114237Snjlimplemented. The ASL source operand types Integer, Buffer, and 4319114237SnjlString are freely interchangeable for most ASL operators and are 4320114237Snjlconverted by the interpreter on the fly as required. Implicit 4321114237SnjlTarget operand conversion (where the result is converted to the 4322114237Snjltarget type before storing) is not yet implemented. 4323102550Siwasaki 4324102550SiwasakiSupport for 32-bit and 64-bit BCD integers is implemented. 4325102550Siwasaki 4326114237SnjlProblem fixed where a field read on an aligned field could cause 4327126372Snjla 4328126372Snjlread past the end of the field. 4329102550Siwasaki 4330114237SnjlNew exception, AE_AML_NO_RETURN_VALUE, is returned when a method 4331114237Snjldoes not return a value, but the caller expects one. (The ASL 4332114237Snjlcompiler flags this as a warning.) 4333102550Siwasaki 4334102550SiwasakiASL Compiler: 4335102550Siwasaki 4336102550SiwasakiVersion X2011: 4337102550Siwasaki1. Static typechecking of all operands is implemented. This 4338102550Siwasakiprevents the use of invalid objects (such as using a Package 4339126372Snjlwhere 4340126372Snjlan Integer is required) at compile time instead of at interpreter 4341126372Snjlrun-time. 4342114237Snjl2. The ASL source line is printed with ALL errors and warnings. 4343102550Siwasaki3. Bug fix for source EOF without final linefeed. 4344102550Siwasaki4. Debug option is split into a parse trace and a namespace 4345102550Siwasakitrace. 4346102550Siwasaki5. Namespace output option (-n) includes initial values for 4347102550Siwasakiintegers and strings. 4348102550Siwasaki6. Parse-only option added for quick syntax checking. 4349102550Siwasaki7. Compiler checks for duplicate ACPI name declarations 4350102550Siwasaki 4351102550SiwasakiVersion X2012: 4352102550Siwasaki1. Relaxed typechecking to allow interchangeability between 4353114237Snjlstrings, integers, and buffers. These types are now converted by 4354114237Snjlthe interpreter at runtime. 4355114237Snjl2. Compiler reports time taken by each internal subsystem in the 4356114237Snjldebug output file. 4357102550Siwasaki 4358102550Siwasaki 4359102550Siwasaki ------------------------------------------ 4360102550SiwasakiSummary of changes for this label: 12_14_00 4361102550Siwasaki 4362102550SiwasakiASL Compiler: 4363102550Siwasaki 4364104470SiwasakiThis is the first official release of the compiler. Since the 4365104470Siwasakicompiler requires elements of the Core Subsystem, this label 4366104470Siwasakisynchronizes everything. 4367102550Siwasaki 4368102550Siwasaki------------------------------------------ 4369102550SiwasakiSummary of changes for this label: 12_08_00 4370102550Siwasaki 4371102550Siwasaki 4372114237SnjlFixed a problem where named references within the ASL definition 4373114237Snjlof both OperationRegions and CreateXXXFields did not work 4374114237Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 4375114237Snjlinitialization of the region/field. This is similar (but not 4376114237Snjlrelated internally) to the problem that was fixed in the last 4377114237Snjllabel. 4378114237Snjl 4379102550SiwasakiImplemented both 32-bit and 64-bit support for the BCD ASL 4380102550Siwasakifunctions ToBCD and FromBCD. 4381102550Siwasaki 4382102550SiwasakiUpdated all legal headers to include "2000" in the copyright 4383102550Siwasakiyears. 4384102550Siwasaki 4385102550Siwasaki ------------------------------------------ 4386102550SiwasakiSummary of changes for this label: 12_01_00 4387102550Siwasaki 4388102550SiwasakiFixed a problem where method invocations within the ASL 4389126372Snjldefinition 4390126372Snjlof both OperationRegions and CreateXXXFields did not work 4391126372Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 4392114237Snjlinitialization of the region/field: 4393102550Siwasaki 4394114237Snjl nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments 4395114237Snjl[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s) 4396114237Snjl(0x3005) 4397102550Siwasaki 4398102550SiwasakiFixed a problem where operators with more than one nested 4399104470Siwasakisubexpression would fail. The symptoms were varied, by mostly 4400114237SnjlAE_AML_OPERAND_TYPE errors. This was actually a rather serious 4401114237Snjlproblem that has gone unnoticed until now. 4402102550Siwasaki 4403102550Siwasaki Subtract (Add (1,2), Multiply (3,4)) 4404102550Siwasaki 4405114237SnjlFixed a problem where AcpiGetHandle didn't quite get fixed in the 4406114237Snjlprevious build (The prefix part of a relative path was handled 4407114237Snjlincorrectly). 4408102550Siwasaki 4409114237SnjlFixed a problem where Operation Region initialization failed if 4410114237Snjlthe operation region name was a "namepath" instead of a simple 4411114237Snjl"nameseg". Symptom was an AE_NO_OPERAND error. 4412102550Siwasaki 4413114237SnjlFixed a problem where an assignment to a local variable via the 4414114237Snjlindirect RefOf mechanism only worked for the first such 4415102550Siwasakiassignment. Subsequent assignments were ignored. 4416102550Siwasaki 4417102550Siwasaki ------------------------------------------ 4418102550SiwasakiSummary of changes for this label: 11_15_00 4419102550Siwasaki 4420104470SiwasakiACPI 2.0 table support with backwards support for ACPI 1.0 and 4421126372Snjlthe 4422126372Snjl0.71 extensions. Note: although we can read ACPI 2.0 BIOS 4423126372Snjltables, 4424126372Snjlthe AML interpreter does NOT have support for the new 2.0 ASL 4425126372Snjlgrammar terms at this time. 4426102550Siwasaki 4427104470SiwasakiAll ACPI hardware access is via the GAS structures in the ACPI 4428126372Snjl2.0 4429126372SnjlFADT. 4430102550Siwasaki 4431104470SiwasakiAll physical memory addresses across all platforms are now 64 4432126372Snjlbits 4433126372Snjlwide. Logical address width remains dependent on the platform 4434126372Snjl(i.e., "void *"). 4435102550Siwasaki 4436114237SnjlAcpiOsMapMemory interface changed to a 64-bit physical address. 4437102550Siwasaki 4438114237SnjlThe AML interpreter integer size is now 64 bits, as per the ACPI 4439114237Snjl2.0 specification. 4440102550Siwasaki 4441104470SiwasakiFor backwards compatibility with ACPI 1.0, ACPI tables with a 4442104470Siwasakirevision number less than 2 use 32-bit integers only. 4443102550Siwasaki 4444114237SnjlFixed a problem where the evaluation of OpRegion operands did not 4445114237Snjlalways resolve them to numbers properly. 4446102550Siwasaki 4447102550Siwasaki------------------------------------------ 4448102550SiwasakiSummary of changes for this label: 10_20_00 4449102550Siwasaki 4450114237SnjlFix for CBN_._STA issue. This fix will allow correct access to 4451114237SnjlCBN_ OpRegions when the _STA returns 0x8. 4452102550Siwasaki 4453104470SiwasakiSupport to convert ACPI constants (Ones, Zeros, One) to actual 4454104470Siwasakivalues before a package object is returned 4455102550Siwasaki 4456104470SiwasakiFix for method call as predicate to if/while construct causing 4457104470Siwasakiincorrect if/while behavior 4458102550Siwasaki 4459114237SnjlFix for Else block package lengths sometimes calculated wrong (if 4460114237Snjlblock > 63 bytes) 4461102550Siwasaki 4462102550SiwasakiFix for Processor object length field, was always zero 4463102550Siwasaki 4464102550SiwasakiTable load abort if FACP sanity check fails 4465102550Siwasaki 4466102550SiwasakiFix for problem with Scope(name) if name already exists 4467102550Siwasaki 4468102550SiwasakiWarning emitted if a named object referenced cannot be found 4469102550Siwasaki(resolved) during method execution. 4470102550Siwasaki 4471102550Siwasaki 4472102550Siwasaki 4473102550Siwasaki 4474102550Siwasaki 4475102550Siwasaki------------------------------------------ 4476102550SiwasakiSummary of changes for this label: 9_29_00 4477102550Siwasaki 4478114237SnjlNew table initialization interfaces: AcpiInitializeSubsystem no 4479114237Snjllonger has any parameters AcpiFindRootPointer - Find the RSDP (if 4480114237Snjlnecessary) AcpiLoadTables (RSDP) - load all tables found at RSDP- 4481114237Snjl>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by 4482114237SnjlAcpiLoadTables 4483102550Siwasaki 4484104470SiwasakiNote: These interface changes require changes to all existing 4485104470SiwasakiOSDs 4486102550Siwasaki 4487114237SnjlThe PCI_Config default address space handler is always installed 4488114237Snjlat the root namespace object. 4489102550Siwasaki 4490102550Siwasaki------------------------------------------- 4491102550SiwasakiSummary of changes for this label: 09_15_00 4492102550Siwasaki 4493102550SiwasakiThe new initialization architecture is implemented. New 4494114237Snjlinterfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize) 4495114237SnjlAcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace 4496114237Snjl(Namespace is automatically loaded when a table is loaded) 4497102550Siwasaki 4498104470SiwasakiThe ACPI_OPERAND_OBJECT has been optimized to shrink its size 4499126372Snjlfrom 4500126372Snjl52 bytes to 32 bytes. There is usually one of these for every 4501126372Snjlnamespace object, so the memory savings is significant. 4502102550Siwasaki 4503114237SnjlImplemented just-in-time evaluation of the CreateField operators. 4504102550Siwasaki 4505102550SiwasakiBug fixes for IA-64 support have been integrated. 4506102550Siwasaki 4507102550SiwasakiAdditional code review comments have been implemented 4508102550Siwasaki 4509104470SiwasakiThe so-called "third pass parse" has been replaced by a final 4510126372Snjlwalk 4511126372Snjlthrough the namespace to initialize all operation regions 4512126372Snjl(address 4513126372Snjlspaces) and fields that have not yet been initialized during the 4514126372Snjlexecution of the various _INI and REG methods. 4515102550Siwasaki 4516102550SiwasakiNew file - namespace/nsinit.c 4517102550Siwasaki 4518102550Siwasaki------------------------------------------- 4519102550SiwasakiSummary of changes for this label: 09_01_00 4520102550Siwasaki 4521104470SiwasakiNamespace manager data structures have been reworked to change 4522126372Snjlthe 4523126372Snjlprimary object from a table to a single object. This has 4524104470Siwasakiresulted in dynamic memory savings of 3X within the namespace 4525126372Snjland 4526126372Snjl2X overall in the ACPI CA subsystem. 4527102550Siwasaki 4528102550SiwasakiFixed problem where the call to AcpiEvFindPciRootBuses was 4529102550Siwasakiinadvertently left commented out. 4530102550Siwasaki 4531114237SnjlReduced the warning count when generating the source with the GCC 4532114237Snjlcompiler. 4533102550Siwasaki 4534102550SiwasakiRevision numbers added to each module header showing the 4535104470SiwasakiSourceSafe version of the file. Please refer to this version 4536114237Snjlnumber when giving us feedback or comments on individual modules. 4537102550Siwasaki 4538114237SnjlThe main object types within the subsystem have been renamed to 4539114237Snjlclarify their purpose: 4540102550Siwasaki 4541102550SiwasakiACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT 4542102550SiwasakiACPI_GENERIC_OP -> ACPI_PARSE_OBJECT 4543102550SiwasakiACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE 4544102550Siwasaki 4545114237SnjlNOTE: no changes to the initialization sequence are included in 4546114237Snjlthis label. 4547102550Siwasaki 4548102550Siwasaki------------------------------------------- 4549102550SiwasakiSummary of changes for this label: 08_23_00 4550102550Siwasaki 4551102550SiwasakiFixed problem where TerminateControlMethod was being called 4552102550Siwasakimultiple times per method 4553102550Siwasaki 4554114237SnjlFixed debugger problem where single stepping caused a semaphore 4555126372Snjlto 4556126372Snjlbe oversignalled 4557102550Siwasaki 4558104470SiwasakiImproved performance through additional parse object caching - 4559104470Siwasakiadded ACPI_EXTENDED_OP type 4560102550Siwasaki 4561102550Siwasaki------------------------------------------- 4562102550SiwasakiSummary of changes for this label: 08_10_00 4563102550Siwasaki 4564102550SiwasakiParser/Interpreter integration: Eliminated the creation of 4565102550Siwasakicomplete parse trees for ACPI tables and control methods. 4566114237SnjlInstead, parse subtrees are created and then deleted as soon as 4567114237Snjlthey are processed (Either entered into the namespace or 4568126372Snjlexecuted 4569126372Snjlby the interpreter). This reduces the use of dynamic kernel 4570126372Snjlmemory significantly. (about 10X) 4571102550Siwasaki 4572114237SnjlException codes broken into classes and renumbered. Be sure to 4573114237Snjlrecompile all code that includes acexcep.h. Hopefully we won't 4574114237Snjlhave to renumber the codes again now that they are split into 4575114237Snjlclasses (environment, programmer, AML code, ACPI table, and 4576114237Snjlinternal). 4577102550Siwasaki 4578104470SiwasakiFixed some additional alignment issues in the Resource Manager 4579104470Siwasakisubcomponent 4580102550Siwasaki 4581114237SnjlImplemented semaphore tracking in the AcpiExec utility, and fixed 4582114237Snjlseveral places where mutexes/semaphores were being unlocked 4583114237Snjlwithout a corresponding lock operation. There are no known 4584114237Snjlsemaphore or mutex "leaks" at this time. 4585102550Siwasaki 4586114237SnjlFixed the case where an ASL Return operator is used to return an 4587114237Snjlunnamed package. 4588102550Siwasaki 4589102550Siwasaki------------------------------------------- 4590102550SiwasakiSummary of changes for this label: 07_28_00 4591102550Siwasaki 4592102550SiwasakiFixed a problem with the way addresses were calculated in 4593114237SnjlAcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem 4594114237Snjlmanifested itself when a Field was created with WordAccess or 4595114237SnjlDwordAccess, but the field unit defined within the Field was 4596126372Snjlless 4597126372Snjlthan a Word or Dword. 4598102550Siwasaki 4599102550SiwasakiFixed a problem in AmlDumpOperands() module's loop to pull 4600104470Siwasakioperands off of the operand stack to display information. The 4601114237Snjlproblem manifested itself as a TLB error on 64-bit systems when 4602114237Snjlaccessing an operand stack with two or more operands. 4603102550Siwasaki 4604114237SnjlFixed a problem with the PCI configuration space handlers where 4605114237Snjlcontext was getting confused between accesses. This required a 4606114237Snjlchange to the generic address space handler and address space 4607114237Snjlsetup definitions. Handlers now get both a global handler 4608126372Snjlcontext 4609126372Snjl(this is the one passed in by the user when executing 4610114237SnjlAcpiInstallAddressSpaceHandler() and a specific region context 4611114237Snjlthat is unique to each region (For example, the _ADR, _SEG and 4612114237Snjl_BBN values associated with a specific region). The generic 4613114237Snjlfunction definitions have changed to the following: 4614102550Siwasaki 4615114237Snjltypedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function, 4616114237SnjlUINT32 Address, UINT32 BitWidth, UINT32 *Value, void 4617104470Siwasaki*HandlerContext, // This used to be void *Context void 4618102550Siwasaki*RegionContext); // This is an additional parameter 4619102550Siwasaki 4620102550Siwasakitypedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE 4621102550SiwasakiRegionHandle, UINT32 Function, void *HandlerContext, void 4622102550Siwasaki**RegionContext); // This used to be **ReturnContext 4623102550Siwasaki 4624102550Siwasaki------------------------------------------- 4625102550SiwasakiSummary of changes for this label: 07_21_00 4626102550Siwasaki 4627102550SiwasakiMajor file consolidation and rename. All files within the 4628102550Siwasakiinterpreter have been renamed as well as most header files. 4629126372SnjlThis 4630126372Snjlwas done to prevent collisions with existing files in the host 4631126372SnjlOSs -- filenames such as "config.h" and "global.h" seem to be 4632126372Snjlquite common. The VC project files have been updated. All 4633114237Snjlmakefiles will require modification. 4634102550Siwasaki 4635114237SnjlThe parser/interpreter integration continues in Phase 5 with the 4636114237Snjlimplementation of a complete 2-pass parse (the AML is parsed 4637114237Snjltwice) for each table; This avoids the construction of a huge 4638114237Snjlparse tree and therefore reduces the amount of dynamic memory 4639114237Snjlrequired by the subsystem. Greater use of the parse object cache 4640114237Snjlmeans that performance is unaffected. 4641102550Siwasaki 4642102550SiwasakiMany comments from the two code reviews have been rolled in. 4643102550Siwasaki 4644102550SiwasakiThe 64-bit alignment support is complete. 4645102550Siwasaki 4646102550Siwasaki------------------------------------------- 4647102550SiwasakiSummary of changes for this label: 06_30_00 4648102550Siwasaki 4649114237SnjlWith a nod and a tip of the hat to the technology of yesteryear, 4650114237Snjlwe've added support in the source code for 80 column output 4651114237Snjldevices. The code is now mostly constrained to 80 columns or 4652114237Snjlless to support environments and editors that 1) cannot display 4653114237Snjlor print more than 80 characters on a single line, and 2) cannot 4654114237Snjldisable line wrapping. 4655102550Siwasaki 4656104470SiwasakiA major restructuring of the namespace data structure has been 4657104470Siwasakicompleted. The result is 1) cleaner and more 4658114237Snjlunderstandable/maintainable code, and 2) a significant reduction 4659114237Snjlin the dynamic memory requirement for each named ACPI object 4660114237Snjl(almost half). 4661102550Siwasaki 4662102550Siwasaki------------------------------------------- 4663102550SiwasakiSummary of changes for this label: 06_23_00 4664102550Siwasaki 4665114237SnjlLinux support has been added. In order to obtain approval to get 4666114237Snjlthe ACPI CA subsystem into the Linux kernel, we've had to make 4667114237Snjlquite a few changes to the base subsystem that will affect all 4668114237Snjlusers (all the changes are generic and OS- independent). The 4669114237Snjleffects of these global changes have been somewhat far reaching. 4670114237SnjlFiles have been merged and/or renamed and interfaces have been 4671114237Snjlrenamed. The major changes are described below. 4672102550Siwasaki 4673102550SiwasakiOsd* interfaces renamed to AcpiOs* to eliminate namespace 4674102550Siwasakipollution/confusion within our target kernels. All OSD 4675114237Snjlinterfaces must be modified to match the new naming convention. 4676102550Siwasaki 4677102550SiwasakiFiles merged across the subsystem. A number of the smaller 4678126372Snjlsource 4679126372Snjland header files have been merged to reduce the file count and 4680126372Snjlincrease the density of the existing files. There are too many 4681126372Snjlto list here. In general, makefiles that call out individual 4682126372Snjlfiles will require rebuilding. 4683102550Siwasaki 4684104470SiwasakiInterpreter files renamed. All interpreter files now have the 4685104470Siwasakiprefix am* instead of ie* and is*. 4686102550Siwasaki 4687104470SiwasakiHeader files renamed: The acapi.h file is now acpixf.h. The 4688114237Snjlacpiosd.h file is now acpiosxf.h. We are removing references to 4689114237Snjlthe acronym "API" since it is somewhat windowsy. The new name is 4690114237Snjl"external interface" or xface or xf in the filenames.j 4691102550Siwasaki 4692102550Siwasaki 4693114237SnjlAll manifest constants have been forced to upper case (some were 4694114237Snjlmixed case.) Also, the string "ACPI_" has been prepended to 4695126372Snjlmany 4696126372Snjl(not all) of the constants, typedefs, and structs. 4697102550Siwasaki 4698102550SiwasakiThe globals "DebugLevel" and "DebugLayer" have been renamed 4699102550Siwasaki"AcpiDbgLevel" and "AcpiDbgLayer" respectively. 4700102550Siwasaki 4701102550SiwasakiAll other globals within the subsystem are now prefixed with 4702102550Siwasaki"AcpiGbl_" Internal procedures within the subsystem are now 4703114237Snjlprefixed with "Acpi" (with only a few exceptions). The original 4704114237Snjltwo-letter abbreviation for the subcomponent remains after 4705126372Snjl"Acpi" 4706126372Snjl- for example, CmCallocate became AcpiCmCallocate. 4707102550Siwasaki 4708102550SiwasakiAdded a source code translation/conversion utility. Used to 4709114237Snjlgenerate the Linux source code, it can be modified to generate 4710114237Snjlother types of source as well. Can also be used to cleanup 4711114237Snjlexisting source by removing extraneous spaces and blank lines. 4712114237SnjlFound in tools/acpisrc/* 4713102550Siwasaki 4714102550SiwasakiOsdUnMapMemory was renamed to OsdUnmapMemory and then 4715102550SiwasakiAcpiOsUnmapMemory. (UnMap became Unmap). 4716102550Siwasaki 4717114237SnjlA "MaxUnits" parameter has been added to AcpiOsCreateSemaphore. 4718114237SnjlWhen set to one, this indicates that the caller wants to use the 4719114237Snjlsemaphore as a mutex, not a counting semaphore. ACPI CA uses 4720114237Snjlboth types. However, implementers of this call may want to use 4721114237Snjldifferent OS primitives depending on the type of semaphore 4722114237Snjlrequested. For example, some operating systems provide separate 4723114237Snjl"mutex" and "semaphore" interfaces - where the mutex interface 4724126372Snjlis 4725126372Snjlmuch faster because it doesn't have all the overhead of a full 4726126372Snjlsemaphore implementation. 4727102550Siwasaki 4728104470SiwasakiFixed a deadlock problem where a method that accesses the PCI 4729114237Snjladdress space can block forever if it is the first access to the 4730114237Snjlspace. 4731102550Siwasaki 4732102550Siwasaki------------------------------------------- 4733102550SiwasakiSummary of changes for this label: 06_02_00 4734102550Siwasaki 4735102550SiwasakiSupport for environments that cannot handle unaligned data 4736114237Snjlaccesses (e.g. firmware and OS environments devoid of alignment 4737114237Snjlhandler technology namely SAL/EFI and the IA-64 Linux kernel) 4738126372Snjlhas 4739126372Snjlbeen added (via configurable macros) in these three areas: - 4740114237SnjlTransfer of data from the raw AML byte stream is done via byte 4741114237Snjlmoves instead of word/dword/qword moves. - External objects 4742126372Snjlare 4743126372Snjlaligned within the user buffer, including package elements (sub- 4744126372Snjlobjects). - Conversion of name strings to UINT32 Acpi Names is 4745126372Snjlnow 4746126372Snjldone byte-wise. 4747102550Siwasaki 4748102550SiwasakiThe Store operator was modified to mimic Microsoft's 4749102550Siwasakiimplementation when storing to a Buffer Field. 4750102550Siwasaki 4751102550SiwasakiAdded a check of the BM_STS bit before entering C3. 4752102550Siwasaki 4753114237SnjlThe methods subdirectory has been obsoleted and removed. A new 4754114237Snjlfile, cmeval.c subsumes the functionality. 4755102550Siwasaki 4756102550SiwasakiA 16-bit (DOS) version of AcpiExec has been developed. The 4757102550Siwasakimakefile is under the acpiexec directory. 4758