----------------------------------------
30 September 2016. Summary of changes for version 20160930:
1) ACPICA kernel-resident subsystem:
Fixed a regression in the internal AcpiTbFindTable function where a non
AE_OK exception could inadvertently be returned even if the function did
not fail. This problem affects the following operators:
DataTableRegion
LoadTable
Fixed a regression in the LoadTable operator where a load to any
namespace location other than the root no longer worked properly.
Increased the maximum loop count value that will result in the
AE_AML_INFINITE_LOOP exception. This is a mechanism that is intended to
prevent infinite loops within the AML interpreter and thus the host OS
kernel. The value is increased from 0xFFFF to 0xFFFFF loops (65,535 to
1,048,575).
Moved the AcpiGbl_MaxLoopIterations configuration variable to the public
acpixf.h file. This allows hosts to easily configure the maximum loop
count at runtime.
Removed an illegal character in the strtoul64.c file. This character
caused errors with some C compilers.
Example Code and Data Size: These are the sizes for the OS-independent
acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
debug version of the code includes the debug output trace mechanism and
has a much larger code and data size.
Current Release:
Non-Debug Version: 140.4K Code, 58.1K Data, 198.5K Total
Debug Version: 200.7K Code, 82.1K Data, 282.8K Total
Previous Release:
Non-Debug Version: 140.0K Code, 58.1K Data, 198.1K Total
Debug Version: 200.3K Code, 82.1K Data, 282.4K Total
2) iASL Compiler/Disassembler and Tools:
Disassembler: Fixed a problem with the conversion of Else{If{ blocks into
the simpler ASL ElseIf keyword. During the conversion, a trailing If
block could be lost and missing from the disassembled output.
iASL: Fixed a missing parser rule for the ObjectType operator. For ASL+,
the missing rule caused a parse error when using the Index operator as an
operand to ObjectType. This construct now compiles properly. Example:
ObjectType(PKG1[4]).
iASL: Correctly handle unresolved symbols in the hardware map file (-lm
option). Previously, unresolved symbols could cause a protection fault.
Such symbols are now marked as unresolved in the map file.
iASL: Implemented support to allow control method invocations as an
operand to the ASL DeRefOf operator. Example:
DeRefOf(MTH1(Local0))
Disassembler: Improved support for the ToPLD ASL macro. Detection of a
possible _PLD buffer now includes examination of both the normal buffer
length (16 or 20) as well as the surrounding AML package length.
Disassembler: Fixed a problem with the decoding of complex expressions
within the Divide operator for ASL+. For the case where both the quotient
and remainder targets are specified, the entire statement cannot be
disassembled. Previously, the output incorrectly contained a mix of ASL-
and ASL+ operators. This mixed statement causes a syntax error when
compiled. Example:
Divide (Add (INT1, 6), 128, RSLT, QUOT) // was incorrectly
disassembled to:
Divide (INT1 + 6, 128, RSLT, QUOT)
iASL/Tools: Added support to process AML and non-AML ACPI tables
consistently. For the disassembler and AcpiExec, allow all types of ACPI
tables (AML and data tables). For the iASL -e option, allow only AML
tables (DSDT/SSDT).
----------------------------------------
31 August 2016. Summary of changes for version 20160831:
1) ACPICA kernel-resident subsystem:
Improve support for the so-called "module-level code", which is defined
to be math, logical and control AML opcodes that appear outside of any
control method. This change improves the support by adding more opcodes
that can be executed in the manner. Some other issues have been solved,
and the ASL grammar changes to support such code under all scope
operators (Device, etc.) are complete. Lv Zheng.
UEFI support: these OSL functions have been implemented. This is an
additional step toward supporting the AcpiExec utility natively (with
full hardware access) under UEFI. Marcelo Ferreira.
AcpiOsReadPciConfiguration
AcpiOsWritePciConfiguration
Fixed a possible mutex error during control method auto-serialization. Lv
Zheng.
Updated support for the Generic Address Structure by fully implementing
all GAS fields when a 32-bit address is expanded to a 64-bit GAS. Lv
Zheng.
Updated the return value for the internal _OSI method. Instead of
0xFFFFFFFF, the "Ones" value is now returned, which is 0xFFFFFFFFFFFFFFFF
for 64-bit ACPI tables. This fixes an incompatibility with other ACPI
implementations, and will be reflected and clarified in the next version
of the ACPI specification.
Implemented two new table events that can be passed to an ACPICA table
handler. These events are used to indicate a table installation or
uninstallation. These events are used in addition to existed table load
and unload events. Lv Zheng.
Implemented a cleanup for all internal string-to-integer conversions.
Consolidate multiple versions of this functionality and limit possible
bases to either 10 or 16 to simplify the code. Adds a new file,
utstrtoul64.
Cleanup the inclusion order of the various compiler-specific headers.
This simplifies build configuration management. The compiler-specific
headers are now split out from the host-specific headers. Lv Zheng.
Example Code and Data Size: These are the sizes for the OS-independent
acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
debug version of the code includes the debug output trace mechanism and
has a much larger code and data size.
Current Release:
Non-Debug Version: 140.1K Code, 58.1K Data, 198.1K Total
Debug Version: 200.3K Code, 82.1K Data, 282.4K Total
2) iASL Compiler/Disassembler and Tools:
iASL/AcpiExec: Added a command line option to display the build date/time
of the tool (-vd). This can be useful to verify that the correct version
of the tools are being used.
AML Debugger: Implemented a new subcommand ("execute predef") to execute
all predefined control methods and names within the current namespace.
This can be useful for debugging problems with ACPI tables and the ACPI
namespace.
----------------------------------------
29 July 2016. Summary of changes for version 20160729:
1) ACPICA kernel-resident subsystem:
Implemented basic UEFI support for the various ACPICA tools. This
includes:
1) An OSL to implement the various AcpiOs* interfaces on UEFI.
2) Support to obtain the ACPI tables on UEFI.
3) Local implementation of required C library functions not available on
UEFI.
4) A front-end (main) function for the tools for UEFI-related
initialization.
The initial deployment of this support is the AcpiDump utility executing
as an UEFI application via EDK2 (EDKII, "UEFI Firmware Development Kit").
Current environments supported are Linux/Unix. MSVC generation is not
supported at this time. See the generate/efi/README file for build
instructions. Lv Zheng.
Future plans include porting the AcpiExec utility to execute natively on
the platform with I/O and memory access. This will allow viewing/dump of
the platform namespace and native execution of ACPI control methods that
access the actual hardware. To fully implement this support, the OSL
functions below must be implemented with UEFI interfaces. Any community
help in the implementation of these functions would be appreciated:
AcpiOsReadPort
AcpiOsWritePort
AcpiOsReadMemory
AcpiOsWriteMemory
AcpiOsReadPciConfiguration
AcpiOsWritePciConfiguration
Restructured and standardized the C library configuration for ACPICA,
resulting in the various configuration options below. This includes a
global restructuring of the compiler-dependent and platform-dependent
include files. These changes may affect the existing platform-dependent
configuration files on some hosts. Lv Zheng.
The current C library configuration options appear below. For any issues,
it may be helpful to examine the existing compiler-dependent and
platform-dependent files as examples. Lv Zheng.
1) Linux kernel:
ACPI_USE_STANDARD_HEADERS=n in order not to use system-provided C
library.
ACPI_USE_SYSTEM_CLIBRARY=y in order not to use ACPICA mini C library.
2) Unix/Windows/BSD applications:
ACPI_USE_STANDARD_HEADERS=y in order to use system-provided C
library.
ACPI_USE_SYSTEM_CLIBRARY=y in order not to use ACPICA mini C library.
3) UEFI applications:
ACPI_USE_STANDARD_HEADERS=n in order not to use system-provided C
library.
ACPI_USE_SYSTEM_CLIBRARY=n in order to use ACPICA mini C library.
4) UEFI applications (EDK2/StdLib):
ACPI_USE_STANDARD_HEADERS=y in order to use EDK2 StdLib C library.
ACPI_USE_SYSTEM_CLIBRARY=y in order to use EDK2 StdLib C library.
AML interpreter: "module-level code" support. Allows for execution of so-
called "executable" AML code (math/logical operations, etc.) outside of
control methods not just at the module level (top level) but also within
any scope declared outside of a control method - Scope{}, Device{},
Processor{}, PowerResource{}, and ThermalZone{}. Lv Zheng.
Simplified the configuration of the "maximum AML loops" global option by
adding a global public variable, "AcpiGbl_MaxLoopIterations" which can be
modified at runtime.
Example Code and Data Size: These are the sizes for the OS-independent
acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
debug version of the code includes the debug output trace mechanism and
has a much larger code and data size.
Current Release:
Non-Debug Version: 139.1K Code, 22.9K Data, 162.0K Total
Debug Version: 199.0K Code, 81.8K Data, 280.8K Total
2) iASL Compiler/Disassembler and Tools:
iASL: Add full support for the RASF ACPI table (RAS Features Table).
Includes disassembler, data table compiler, and header support.
iASL Expand "module-level code" support. Allows for
compilation/disassembly of so-called "executable" AML code (math/logical
operations, etc.) outside of control methods not just at the module level
(top level) but also within any scope declared outside of a control
method - Scope{}, Device{}, Processor{}, PowerResource{}, and
ThermalZone{}.
AcpiDump: Added support for dumping all SSDTs on newer versions of
Windows. These tables are now easily available -- SSDTs are not available
through the registry on older versions.
----------------------------------------
30 September 2016. Summary of changes for version 20160930:
1) ACPICA kernel-resident subsystem:
Fixed a regression in the internal AcpiTbFindTable function where a non
AE_OK exception could inadvertently be returned even if the function did
not fail. This problem affects the following operators:
DataTableRegion
LoadTable
Fixed a regression in the LoadTable operator where a load to any
namespace location other than the root no longer worked properly.
Increased the maximum loop count value that will result in the
AE_AML_INFINITE_LOOP exception. This is a mechanism that is intended to
prevent infinite loops within the AML interpreter and thus the host OS
kernel. The value is increased from 0xFFFF to 0xFFFFF loops (65,535 to
1,048,575).
Moved the AcpiGbl_MaxLoopIterations configuration variable to the public
acpixf.h file. This allows hosts to easily configure the maximum loop
count at runtime.
Removed an illegal character in the strtoul64.c file. This character
caused errors with some C compilers.
Example Code and Data Size: These are the sizes for the OS-independent
acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
debug version of the code includes the debug output trace mechanism and
has a much larger code and data size.
Current Release:
Non-Debug Version: 140.4K Code, 58.1K Data, 198.5K Total
Debug Version: 200.7K Code, 82.1K Data, 282.8K Total
Previous Release:
Non-Debug Version: 140.0K Code, 58.1K Data, 198.1K Total
Debug Version: 200.3K Code, 82.1K Data, 282.4K Total
2) iASL Compiler/Disassembler and Tools:
Disassembler: Fixed a problem with the conversion of Else{If{ blocks into
the simpler ASL ElseIf keyword. During the conversion, a trailing If
block could be lost and missing from the disassembled output.
iASL: Fixed a missing parser rule for the ObjectType operator. For ASL+,
the missing rule caused a parse error when using the Index operator as an
operand to ObjectType. This construct now compiles properly. Example:
ObjectType(PKG1[4]).
iASL: Correctly handle unresolved symbols in the hardware map file (-lm
option). Previously, unresolved symbols could cause a protection fault.
Such symbols are now marked as unresolved in the map file.
iASL: Implemented support to allow control method invocations as an
operand to the ASL DeRefOf operator. Example:
DeRefOf(MTH1(Local0))
Disassembler: Improved support for the ToPLD ASL macro. Detection of a
possible _PLD buffer now includes examination of both the normal buffer
length (16 or 20) as well as the surrounding AML package length.
Disassembler: Fixed a problem with the decoding of complex expressions
within the Divide operator for ASL+. For the case where both the quotient
and remainder targets are specified, the entire statement cannot be
disassembled. Previously, the output incorrectly contained a mix of ASL-
and ASL+ operators. This mixed statement causes a syntax error when
compiled. Example:
Divide (Add (INT1, 6), 128, RSLT, QUOT) // was incorrectly
disassembled to:
Divide (INT1 + 6, 128, RSLT, QUOT)
iASL/Tools: Added support to process AML and non-AML ACPI tables
consistently. For the disassembler and AcpiExec, allow all types of ACPI
tables (AML and data tables). For the iASL -e option, allow only AML
tables (DSDT/SSDT).
----------------------------------------
31 August 2016. Summary of changes for version 20160831:
1) ACPICA kernel-resident subsystem:
Improve support for the so-called "module-level code", which is defined
to be math, logical and control AML opcodes that appear outside of any
control method. This change improves the support by adding more opcodes
that can be executed in the manner. Some other issues have been solved,
and the ASL grammar changes to support such code under all scope
operators (Device, etc.) are complete. Lv Zheng.
UEFI support: these OSL functions have been implemented. This is an
additional step toward supporting the AcpiExec utility natively (with
full hardware access) under UEFI. Marcelo Ferreira.
AcpiOsReadPciConfiguration
AcpiOsWritePciConfiguration
Fixed a possible mutex error during control method auto-serialization. Lv
Zheng.
Updated support for the Generic Address Structure by fully implementing
all GAS fields when a 32-bit address is expanded to a 64-bit GAS. Lv
Zheng.
Updated the return value for the internal _OSI method. Instead of
0xFFFFFFFF, the "Ones" value is now returned, which is 0xFFFFFFFFFFFFFFFF
for 64-bit ACPI tables. This fixes an incompatibility with other ACPI
implementations, and will be reflected and clarified in the next version
of the ACPI specification.
Implemented two new table events that can be passed to an ACPICA table
handler. These events are used to indicate a table installation or
uninstallation. These events are used in addition to existed table load
and unload events. Lv Zheng.
Implemented a cleanup for all internal string-to-integer conversions.
Consolidate multiple versions of this functionality and limit possible
bases to either 10 or 16 to simplify the code. Adds a new file,
utstrtoul64.
Cleanup the inclusion order of the various compiler-specific headers.
This simplifies build configuration management. The compiler-specific
headers are now split out from the host-specific headers. Lv Zheng.
Example Code and Data Size: These are the sizes for the OS-independent
acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
debug version of the code includes the debug output trace mechanism and
has a much larger code and data size.
Current Release:
Non-Debug Version: 140.1K Code, 58.1K Data, 198.1K Total
Debug Version: 200.3K Code, 82.1K Data, 282.4K Total
2) iASL Compiler/Disassembler and Tools:
iASL/AcpiExec: Added a command line option to display the build date/time
of the tool (-vd). This can be useful to verify that the correct version
of the tools are being used.
AML Debugger: Implemented a new subcommand ("execute predef") to execute
all predefined control methods and names within the current namespace.
This can be useful for debugging problems with ACPI tables and the ACPI
namespace.
----------------------------------------
29 July 2016. Summary of changes for version 20160729:
1) ACPICA kernel-resident subsystem:
Implemented basic UEFI support for the various ACPICA tools. This
includes:
1) An OSL to implement the various AcpiOs* interfaces on UEFI.
2) Support to obtain the ACPI tables on UEFI.
3) Local implementation of required C library functions not available on
UEFI.
4) A front-end (main) function for the tools for UEFI-related
initialization.
The initial deployment of this support is the AcpiDump utility executing
as an UEFI application via EDK2 (EDKII, "UEFI Firmware Development Kit").
Current environments supported are Linux/Unix. MSVC generation is not
supported at this time. See the generate/efi/README file for build
instructions. Lv Zheng.
Future plans include porting the AcpiExec utility to execute natively on
the platform with I/O and memory access. This will allow viewing/dump of
the platform namespace and native execution of ACPI control methods that
access the actual hardware. To fully implement this support, the OSL
functions below must be implemented with UEFI interfaces. Any community
help in the implementation of these functions would be appreciated:
AcpiOsReadPort
AcpiOsWritePort
AcpiOsReadMemory
AcpiOsWriteMemory
AcpiOsReadPciConfiguration
AcpiOsWritePciConfiguration
Restructured and standardized the C library configuration for ACPICA,
resulting in the various configuration options below. This includes a
global restructuring of the compiler-dependent and platform-dependent
include files. These changes may affect the existing platform-dependent
configuration files on some hosts. Lv Zheng.
The current C library configuration options appear below. For any issues,
it may be helpful to examine the existing compiler-dependent and
platform-dependent files as examples. Lv Zheng.
1) Linux kernel:
ACPI_USE_STANDARD_HEADERS=n in order not to use system-provided C
library.
ACPI_USE_SYSTEM_CLIBRARY=y in order not to use ACPICA mini C library.
2) Unix/Windows/BSD applications:
ACPI_USE_STANDARD_HEADERS=y in order to use system-provided C
library.
ACPI_USE_SYSTEM_CLIBRARY=y in order not to use ACPICA mini C library.
3) UEFI applications:
ACPI_USE_STANDARD_HEADERS=n in order not to use system-provided C
library.
ACPI_USE_SYSTEM_CLIBRARY=n in order to use ACPICA mini C library.
4) UEFI applications (EDK2/StdLib):
ACPI_USE_STANDARD_HEADERS=y in order to use EDK2 StdLib C library.
ACPI_USE_SYSTEM_CLIBRARY=y in order to use EDK2 StdLib C library.
AML interpreter: "module-level code" support. Allows for execution of so-
called "executable" AML code (math/logical operations, etc.) outside of
control methods not just at the module level (top level) but also within
any scope declared outside of a control method - Scope{}, Device{},
Processor{}, PowerResource{}, and ThermalZone{}. Lv Zheng.
Simplified the configuration of the "maximum AML loops" global option by
adding a global public variable, "AcpiGbl_MaxLoopIterations" which can be
modified at runtime.
Example Code and Data Size: These are the sizes for the OS-independent
acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
debug version of the code includes the debug output trace mechanism and
has a much larger code and data size.
Current Release:
Non-Debug Version: 139.1K Code, 22.9K Data, 162.0K Total
Debug Version: 199.0K Code, 81.8K Data, 280.8K Total
2) iASL Compiler/Disassembler and Tools:
iASL: Add full support for the RASF ACPI table (RAS Features Table).
Includes disassembler, data table compiler, and header support.
iASL Expand "module-level code" support. Allows for
compilation/disassembly of so-called "executable" AML code (math/logical
operations, etc.) outside of control methods not just at the module level
(top level) but also within any scope declared outside of a control
method - Scope{}, Device{}, Processor{}, PowerResource{}, and
ThermalZone{}.
AcpiDump: Added support for dumping all SSDTs on newer versions of
Windows. These tables are now easily available -- SSDTs are not available
through the registry on older versions.
This gives the callback a chance of running when another softint handler
at SOFTINT_NET has blocked holding a lock, e.g. softnet_lock and most of
the network stack.
Should fix/help
kern/49065 - ifconfig tun0 ... sequence locks up system / lockup: softnet_lock held across usb xfr
kern/50491 - unkillable wait in usbd_transfer while using usmsc0 on raspberry pi 2
kern/51395 - USB Ethernet makes xhci hang
and probably others
This release is available at https://acpica.org/downloads
1) ACPICA kernel-resident subsystem:
Temporarily reverted the new arbitrary bit length/alignment support in
AcpiHwRead/AcpiHwWrite for the Generic Address Structure. There have been
a number of regressions with the new code that need to be fully resolved
and tested before this support can be finally integrated into ACPICA.
Apologies for any inconveniences these issues may have caused.
The ACPI message macros are not configurable (ACPI_MSG_ERROR,
ACPI_MSG_EXCEPTION, ACPI_MSG_WARNING, ACPI_MSG_INFO, ACPI_MSG_BIOS_ERROR,
and ACPI_MSG_BIOS_WARNING). Lv Zheng.
Fixed a couple of GCC warnings associated with the use of the -Wcast-qual
option. Adds a new return macro, return_STR. Junk-uk Kim.
Example Code and Data Size: These are the sizes for the OS-independent
acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
debug version of the code includes the debug output trace mechanism and
has a much larger code and data size.
Current Release:
Non-Debug Version: 136.8K Code, 51.6K Data, 188.4K Total
Debug Version: 201.5K Code, 82.2K Data, 283.7K Total
Previous Release:
Non-Debug Version: 137.4K Code, 52.6K Data, 190.0K Total
Debug Version: 200.9K Code, 82.2K Data, 283.1K Total
Having a pointer of an interface in a mbuf isn't safe if we remove big
kernel locks; an interface object (ifnet) can be destroyed anytime in any
packet processing and accessing such object via a pointer is racy. Instead
we have to get an object from the interface collection (ifindex2ifnet) via
an interface index (if_index) that is stored to a mbuf instead of an
pointer.
The change provides two APIs: m_{get,put}_rcvif_psref that use psref(9)
for sleep-able critical sections and m_{get,put}_rcvif that use
pserialize(9) for other critical sections. The change also adds another
API called m_get_rcvif_NOMPSAFE, that is NOT MP-safe and for transition
moratorium, i.e., it is intended to be used for places where are not
planned to be MP-ified soon.
The change adds some overhead due to psref to performance sensitive paths,
however the overhead is not serious, 2% down at worst.
Proposed on tech-kern and tech-net.
The API is used to set (or reset) a received interface of a mbuf.
They are counterpart of m_get_rcvif, which will come in another
commit, hide internal of rcvif operation, and reduce the diff of
the upcoming change.
No functional change.
In the new sljt version, ppc_cache_flush() is guarded by
SLJIT_CACHE_FLUSH_OWN_IMPL. We can keep is as long as we
don't define SLJIT_CACHE_FLUSH_OWN_IMPL.
Changes since the last import:
r313 Fix a racing condition reported by Mozilla.
r312 Support Android ARM64 cacheflush. Patch by Tavian Barnes.
r311 Update opcode dump.
r310 Better type specification for integer operations and conditional types.
r309 Better type specification for long mul and divide operators.
r308 Better type specification for floating point operations.
r307 Change d and s postfixes to f64 and f32.
r306 Change b,h,i postifxes to 8,16,32.
r305 Fix a wrong immediate number. Reported by Michael McConville.
r304 Make file patch by Michael McConville.
r303 Landed changes created by Michael McConville.
r302 Add support for cmov on x86.
r301 Tile-Gx fixes by Walter Lee
r300 Add WinCE support.
r299 Add a tutorial for SLJIT. Contributed by Wen Xichang.
r298 Improve integer division.
r297 Start reworking the integer division.
r296 Add an overview for SLJIT.
r295 Small optimizations for x86 and ARM64.
r294 Fix ARM64 SP alignment.
r293 Add a new sljit_set_compiler_memory_error function.
r292 Add missing argument on ARM32.
r291 Minor fixes and NOINLINE support.
r290 Support custom memory allocators.
r289 Add SLJIT_DOUBLE_ALIGNMENT support and emit_op_custom size check.
r288 Add suport for SLJIT_ARGUMENT_CHECKS on all architectures.
r287 Add SLJIT_ARGUMENT_CHECKS compiler option and lots of cleanups.
r286 Support the new naming on PPC and MIPS.
r285 Support the new naming on ARM and SPARC.
r284 Move the type letter to the beggining of the floating point opcodes.
r283 Add i_ s_ d_ froms to compare types.
r282 Fix an incorrect form of mul on x86-64.
r281 Refactoring sljitConfigInternal.h header.
r280 Remove variable locals offset.
r279 Test skips are not reported if verbose is disabled.
r278 Add options to sljit_emit_enter and sljit_set_context.
r277 Reindexing opX opcodes.
r276 Some comments are fixed and minor refactors were done.
r275 Minor optimizations.
r274 Extend the register set on ARM.
r273 Extend the register set on PPC, MIPS, SPARC.
r272 Allow remapping of any registers: not just scratch->saved, but saved->scratch as well.
r271 Renaming floating point registers to support more of them.
r270 Extend the register set on x86.
r269 Renaming integer registers for preparing the support of any all machine registers.
r268 Refactor a macro to work when debug is disabled.
r267 Introduce architecture macros without 32/64 bit postfix.
r266 The floating point conversion operators are finished on PPC, and they are supported on all architectures now.
r265 FPU operations support locals access now. CONW is supported on PPC now.
r264 Continue code refactoring, MOVS/MOVD are optimized on all architectures.
r263 SPARC implementation of floating point operators.
r262 Small refactorings.
r261 MIPS implementation of floating point conversion operators.
r260 ARM implementation of floating point operators.
r259 x86 implementation of floating point conversion operators.
r258 Refactoring sljit_emit_fop1 opcodes, inserting placeholders for new ones.
c450c13615f7af0673230041da4216b3de5bc4d3.patch
This patch fixes 2 issues in AccessWidth/BitOffset support and adds
comments to justify the BitOffset/BitWidth style macro usages. Lv Zheng.
This patch introduces ACPI_IS_ALIGNED() macro. Lv Zheng.
The old register descriptors are translated in AcpiTbInitGenericAddress()
with AccessWidth being filled with 0. This breaks code in
AcpiHwGetAccessBitWidth() when the registers are 16-bit IO ports and their
BitWidth fields are filled with 16. The rapid fix is meant to make code
written for AcpiHwGetAccessBitWidth() regression safer before the issue is
correctly fixed from AcpiTbInitGenericAddress(). Reported by
John Baldwin <jhb@freebsd.org>, Fixed by Lv Zheng <lv.zheng@intel.com>,
Tested by Jung-uk Kim <jkim@freebsd.org>.
1) ACPICA kernel-resident subsystem:
Fixed a regression in the GAS (generic address structure) arbitrary bit
support in AcpiHwRead/AcpiHwWrite. Problem could cause incorrect behavior
and incorrect return values. Lv Zheng. ACPICA BZ 1270.
ACPI 6.0: Added support for new/renamed resource macros. One new argument
was added to each of these macros, and the original name has been
deprecated. The AML disassembler will always disassemble to the new
names. Support for the new macros was added to iASL, disassembler,
resource manager, and the acpihelp utility. ACPICA BZ 1274.
I2cSerialBus -> I2cSerialBusV2
SpiSerialBus -> SpiSerialBusV2
UartSerialBus -> UartSerialBusV2
ACPI 6.0: Added support for a new integer field that was appended to the
package object returned by the _BIX method. This adds iASL compile-time
and AML runtime error checking. ACPICA BZ 1273.
ACPI 6.1: Added support for a new PCCT subtable, "HW-Reduced Comm
Subspace Type2" (Headers, Disassembler, and data table compiler).
Example Code and Data Size: These are the sizes for the OS-independent
acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
debug version of the code includes the debug output trace mechanism and
has a much larger code and data size.
Current Release:
Non-Debug Version: 137.4K Code, 52.6K Data, 190.0K Total
Debug Version: 201.5K Code, 82.2K Data, 283.7K Total
Previous Release:
Non-Debug Version: 137.1K Code, 51.5K Data, 188.6K Total
Debug Version: 201.0K Code, 82.0K Data, 283.0K Total
2) iASL Compiler/Disassembler and Tools:
iASL: Implemented an ASL grammar extension to allow/enable executable
"module-level code" to be created and executed under the various
operators that create new scopes. This type of AML code is already
supported in all known AML interpreters, and the grammar change will
appear in the next version of the ACPI specification. Simplifies the
conditional runtime creation of named objects under these object types:
Device
PowerResource
Processor
Scope
ThermalZone
iASL: Implemented a new ASL extension, a "For" loop macro to add greater
ease-of-use to the ASL language. The syntax is similar to the
corresponding C operator, and is implemented with the existing AML While
opcode -- thus requiring no changes to existing AML interpreters.
For (Initialize, Predicate, Update) {TermList}
Grammar:
ForTerm :=
For (
Initializer // Nothing | TermArg => ComputationalData
Predicate // Nothing | TermArg => ComputationalData
Update // Nothing | TermArg => ComputationalData
) {TermList}
iASL: The _HID/_ADR detection and validation has been enhanced to search
under conditionals in order to allow these objects to be conditionally
created at runtime.
iASL: Fixed several issues with the constant folding feature. The
improvement allows better detection and resolution of statements that can
be folded at compile time. ACPICA BZ 1266.
iASL/Disassembler: Fixed a couple issues with the Else{If{}...}
conversion to the ASL ElseIf operator where incorrect ASL code could be
generated.
iASL/Disassembler: Fixed a problem with the ASL+ code disassembly where
sometimes an extra (and extraneous) set of parentheses were emitted for
some combinations of operators. Although this did not cause any problems
with recompilation of the disassembled code, it made the code more
difficult to read. David Box. ACPICA BZ 1231.
iASL: Changed to ignore the unreferenced detection for predefined names
of resource descriptor elements, when the resource descriptor is
created/defined within a control method.
iASL: Disassembler: Fix a possible fault with externally declared Buffer
objects.
----------------------------------------
18 March 2016. Summary of changes for version 20160318:
1) ACPICA kernel-resident subsystem:
Added support for arbitrary bit lengths and bit offsets for registers
defined by the Generic Address Structure. Previously, only aligned bit
lengths of 8/16/32/64 were supported. This was sufficient for many years,
but recently some machines have been seen that require arbitrary bit-
level support. ACPICA BZ 1240. Lv Zheng.
Fixed an issue where the \_SB._INI method sometimes must be evaluated
before any _REG methods are evaluated. Lv Zheng.
Implemented several changes related to ACPI table support
(Headers/Disassembler/TableCompiler):
NFIT: For ACPI 6.1, updated to add some additional new fields and
constants.
FADT: Updated a warning message and set compliance to ACPI 6.1 (Version
6).
DMAR: Added new constants per the 10/2014 DMAR spec.
IORT: Added new subtable per the 10/2015 IORT spec.
HEST: For ACPI 6.1, added new constants and new subtable.
DBG2: Added new constants per the 12/2015 DBG2 spec.
FPDT: Fixed several incorrect fields, add the FPDT boot record structure.
ACPICA BZ 1249.
ERST/EINJ: Updated disassembler with new "Execute Timings" actions.
Updated header support for the DMAR table to match the current version of
the related spec.
Added extensions to the ASL Concatenate operator to allow any ACPI object
to be passed as an operand. Any object other than Integer/String/Buffer
simply returns a string containing the object type. This extends the
usefulness of the Printf macros. Previously, Concatenate would abort the
control method if a non-data object was encountered.
ACPICA source code: Deployed the C "const" keyword across the source code
where appropriate. ACPICA BZ 732. Joerg Sonnenberger (NetBSD).
Example Code and Data Size: These are the sizes for the OS-independent
acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
debug version of the code includes the debug output trace mechanism and
has a much larger code and data size.
Current Release:
Non-Debug Version: 137.1K Code, 51.5K Data, 188.6K Total
Debug Version: 201.0K Code, 82.0K Data, 283.0K Total
Previous Release:
Non-Debug Version: 136.2K Code, 51.5K Data, 187.7K Total
Debug Version: 200.4K Code, 82.0K Data, 282.4K Total
2) iASL Compiler/Disassembler and Tools:
iASL/Disassembler: Improved the heuristic used to determine the number of
arguments for an externally defined control method (a method in another
table). Although this is an improvement, there is no deterministic way to
"guess" the number of method arguments. Only the ACPI 6.0 External opcode
will completely solve this problem as it is deployed (automatically) in
newer BIOS code.
iASL/Disassembler: Fixed an ordering issue for emitted External() ASL
statements that could cause errors when the disassembled file is
compiled. ACPICA BZ 1243. David Box.
iASL: Fixed a regression caused by the merger of the two versions of the
local strtoul64. Because of a dependency on a global variable, strtoul64
could return an error for integers greater than a 32-bit value. ACPICA BZ
1260.
iASL: Fixed a regression where a fault could occur for an ASL Return
statement if it invokes a control method that is not resolved. ACPICA BZ
1264.
AcpiXtract: Improved input file validation: detection of binary files and
non-acpidump text files.
----------------------------------------
12 February 2016. Summary of changes for version 20160212:
1) ACPICA kernel-resident subsystem:
Implemented full support for the ACPI 6.1 specification (released in
January). This version of the specification is available at:
http://www.uefi.org/specifications
Only a relatively small number of changes were required in ACPICA to
support ACPI 6.1, in these areas:
- New predefined names
- New _HID values
- A new subtable for HEST
- A few other header changes for new values
Ensure \_SB_._INI is executed before any _REG methods are executed. There
appears to be existing BIOS code that relies on this behavior. Lv Zheng.
Reverted a change made in version 20151218 which enabled method
invocations to be targets of various ASL operators (SuperName and Target
grammar elements). While the new behavior is supported by the ACPI
specification, other AML interpreters do not support this behavior and
never will. The ACPI specification will be updated for ACPI 6.2 to remove
this support. Therefore, the change was reverted to the original ACPICA
behavior.
ACPICA now supports the GCC 6 compiler.
Current Release: (Note: build changes increased sizes)
Non-Debug Version: 136.2K Code, 51.5K Data, 187.7K Total
Debug Version: 200.4K Code, 82.0K Data, 282.4K Total
Previous Release:
Non-Debug Version: 102.7K Code, 28.4K Data, 131.1K Total
Debug Version: 200.4K Code, 81.9K Data, 282.3K Total
2) iASL Compiler/Disassembler and Tools:
Completed full support for the ACPI 6.0 External() AML opcode. The
compiler emits an external AML opcode for each ASL External statement.
This opcode is used by the disassembler to assist with the disassembly of
external control methods by specifying the required number of arguments
for the method. AML interpreters do not use this opcode. To ensure that
interpreters do not even see the opcode, a block of one or more external
opcodes is surrounded by an "If(0)" construct. As this feature becomes
commonly deployed in BIOS code, the ability of disassemblers to correctly
disassemble AML code will be greatly improved. David Box.
iASL: Implemented support for an optional cross-reference output file.
The -lx option will create a the cross-reference file with the suffix
"xrf". Three different types of cross-reference are created in this file:
- List of object references made from within each control method
- Invocation (caller) list for each user-defined control method
- List of references to each non-method object in the namespace
iASL: Method invocations as ASL Target operands are now disallowed and
flagged as errors in preparation for ACPI 6.2 (see the description of the
problem above).
Rather than handling `swapping in/out' here, per se, we let uvm do
that, we interpret `swap out' as `deactivate pages', and we add
generic ttm operations to wire and unwire pages, for the ttm_tt
driver to use.
This fixes certain graphics buffer eviction logic, which enables
nouveau to suspend/resume on one of my machines. (The machine
doesn't resume overall for other reasons, but the nouveau device
suspends and resumes in isolation.)
XXX pullup to netbsd-7 after a couple weeks
- API / infrastructure changes to support memory management changes.
- Memory management improvements and bug fixes.
- HCDs should now be MP safe
- conversion to KERNHIST based debug
- FS/LS isoc support on ehci(4).
- conversion to kmem(9)
- Some USB 3 support - mostly from Takahiro HAYASHI (t-hash).
- interrupt transfers now get proper DMA operations
- general bug fixes
- kern/48308
- uhub status notification improvements
- umass(4) probe fix (applied to HEAD already)
- ohci(4) short transfer fix
