27 Nov, 2013
1 commit
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* acpica:
ACPI: Clean up incorrect inclusions of ACPICA headers
ACPICA: Update version to 20131115.
ACPICA: Add support to delete all objects attached to the root namespace node.
ACPICA: Delete all attached data objects during namespace node deletion.
ACPICA: Resources: Fix loop termination for the get AML length function.
ACPICA: Tests: Add CHECKSUM_ABORT protection for test utilities.
ACPICA: Debug output: Do not emit function nesting level for kernel build.
21 Nov, 2013
4 commits
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This fix deletes any and all objects that have been attached to the
root node (via acpi_attach_data). Reported by Tomasz Nowicki.
ACPICA BZ 1026.Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
This fix updates namespace node deletion to delete the entire list
of attached objects (attached via acpi_attach_data) instead of
just one of the attached items. ACPICA BZ 1024.
Tomasz Nowicki (tomasz.nowicki@linaro.org).Signed-off-by: Tomasz Nowicki
Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
The loop terminates on a NULL resource pointer, which can never
happen since the loop simply increments a valid resource pointer.
This fix changes the loop to terminate on an end-of-buffer condition.Problem can be seen by callers to AcpiSetCurrentResources with an
invalid or corrupted resource descriptor; or a resource descriptor
without an END_TAG descriptor.(refined by Bob Moore)
Reported-by: Dan Carpenter
Signed-off-by: Lv Zheng
Signed-off-by: Bob Moore
Signed-off-by: Rafael J. Wysocki -
The nesting level is really only useful during a single-thread
execution. Therefore, only enable this output for the AcpiExec
utility. Also, only emit the thread ID when executing under AcpiExec.
(Context switches are still detected and a message is emitted.)
ACPICA BZ 972.Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki
16 Nov, 2013
1 commit
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Pull trivial tree updates from Jiri Kosina:
"Usual earth-shaking, news-breaking, rocket science pile from
trivial.git"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits)
doc: usb: Fix typo in Documentation/usb/gadget_configs.txt
doc: add missing files to timers/00-INDEX
timekeeping: Fix some trivial typos in comments
mm: Fix some trivial typos in comments
irq: Fix some trivial typos in comments
NUMA: fix typos in Kconfig help text
mm: update 00-INDEX
doc: Documentation/DMA-attributes.txt fix typo
DRM: comment: `halve' -> `half'
Docs: Kconfig: `devlopers' -> `developers'
doc: typo on word accounting in kprobes.c in mutliple architectures
treewide: fix "usefull" typo
treewide: fix "distingush" typo
mm/Kconfig: Grammar s/an/a/
kexec: Typo s/the/then/
Documentation/kvm: Update cpuid documentation for steal time and pv eoi
treewide: Fix common typo in "identify"
__page_to_pfn: Fix typo in comment
Correct some typos for word frequency
clk: fixed-factor: Fix a trivial typo
...
31 Oct, 2013
16 commits
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This patch adds __init to the ACPICA documented initializers:
acpi_initialize_tables()
acpi_initialize_subsystem()
acpi_load_tables()
acpi_enable_subsystem()
acpi_initialize_objects()
and to acpi_reallocate_root_table(), acpi_find_root_pointer() which
are also meant to be called only during initialization.This patch adds __init to the ACPICA documented finalizer:
acpi_terminate()
as this finalizer is only called in __init function now.This change helps to reduce source code differences between
ACPICA upstream and Linux.[rjw: Changelog]
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
Add an asmlinkage wrapper around acpi_enter_sleep_state() to prevent
an empty stub from being called by assmebly code for ACPI_REDUCED_HARDWARE
set.As arch/x86/kernel/acpi/wakeup_xx.S is only compiled when CONFIG_ACPI=y
and there are no users of ACPI_HARDWARE_REDUCED, currently this is in
fact not a real issue, but a cleanup to reduce source code differences
between Linux and ACPICA upstream.[rjw: Changelog]
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
Function acpi_ut_delete_caches() is meant to be used to implement
ACPI_ALLOCATE()/ACPI_FREE() mechanisms in ACPICA, so it should call
acpi_os_free() rather than ACPI_FREE(). Linux is not affected by this
issue as it uses kmem_cache instead of the ACPICA local cache, but
the change helps to reduce source code differences between Linux and
ACPICA upstream.[rjw: Changelog]
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
Reversion commit 7cb7f45c7fee (Revert "ACPICA: Remove obsolete
acpi_os_validate_address interface") restored a piece of dead code
related to an obselete AOPOBJ_INVALID flag. Remove that code again.This helps to reduce source code differences between Linux and ACPICA
upstream.[rjw: Changelog]
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
This patch removes unnecessary memset() invocations where
kmem_cache_zalloc() is used for allocating memory. It also helps to
reduce source code differences between ACPICA upstream and Linux.[rjw: Changelog]
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
ACPI_FREE() should always be used to free objects allocated with
ACPI_ALLOCATE_ZEROED(), so make acpi_ut_create_package_object() do
that.This patch ports a fix from ACPICA upstream to Linux and helps to
reduce source code differences between them.[rjw: Changelog]
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
The object length returned by acpi_ut_get_simple_object_size() should
be rounded up to the closest word boundary.This patch ports a fix from ACPICA upstream to Linux.
[rjw: Changelog]
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
This patch ports new counters and statistics interface, already
implemented in ACPICA upstream, to Linux. That helps to reduce
source code differences between Linux and ACPICA upstream.[rjw: Changelog]
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
This patch merges namespace dump code updates from ACPICA upstream to
reduce the source code differences between Linux and ACPICA upstream. No
functional changes as currently nsdumpdv.c is not used by Linux.This patch does not affect the generation of the Linux kernel binary.
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
The ANOBJ_IS_EXTERNAL flag is only used by an ACPICA utilities - iASL.
No functional change for the Linux kernel should results from applying
this patch, but it helps to reduce source code differences between
the kernel and ACPICA upstream.[rjw: Subject and changelog]
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
This patch adds code that is already in ACPICA upstream, so applying
it can help to reduce the source code differences between Linux and
ACPICA upstream.This code fragment is only useful for ACPICA utilities and no
functional changes to the Linux kernel should result from it.[rjw: Changelog]
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
During the automatic translation of the upstream ACPICA source code
into Linux kernel source code some extra white spaces are added by
the "indent" program at the beginning of each line which is an
invocation of a macro and there is no ";" at the end of the line.For this reason, a new mode has been added to the translation scripts
to remove the extra spaces inserted before invoking such macros and add
an empty line between the invocations of such macros (like the other
function declarations). This new mode is executed after executing
"indent" during the Linux release process. Consequently, some
existing ACPICA source code in the Linux kernel tree needs to be
adjusted to allow the new scripts to work correctly.The affected macros and files are:
1. ACPI_HW_DEPENDENT_RETURN (acpixf.h/acdebug.h/acevents.h):
This macro is used as a wrapper for hardware dependent APIs to offer
a stub when the reduced hardware is configured during compilation.
2. ACPI_EXPORT_SYMBOL (utglobal.c):
This macro is used by Linux to export symbols to be found by Linux
modules. All such invocations are well formatted except those
exported as global variables.This can help to reduce the source code differences between Linux
and upstream ACPICA, and also help to automate the release process.
No functional or binary generation changes should result from it.
Lv Zheng.[rjw: Changelog]
Signed-off-by: Lv Zheng
Signed-off-by: Bob Moore
Signed-off-by: Rafael J. Wysocki -
This changes can reduce source code differences between Linux and ACPICA
upstream to help improving the release automation.The side effect of applying this patch in Linux is:
1. Some ACPICA initialization/termination APIs are no longer exported in
Linux, these include:
acpi_load_tables
acpi_initialize_subsystem
acpi_enable_subsystem
acpi_initialize_objects
acpi_terminate
2. This patch does not affect the following APIs as they are currently not
marked with ACPI_EXPORT_SYMBOL in Linux:
acpi_reallocate_root_table
acpi_initialize_tables
Such functions should not be exported as they are internal to ACPI
subsystem in Linux, and will only be invoked inside of ACPI subsystem's
initialization routines marked with __init and termination routines marked
with __exit. While on other OSPMs, such functions may still need to be
exported.Thus this patch adds the configurability for ACPICA, so that it leaves
OSPMs to determine if the __init/__exit marked functions should be exported
or not. Lv Zheng.Signed-off-by: Lv Zheng
Signed-off-by: Bob Moore
Signed-off-by: Rafael J. Wysocki -
It is reported by kernel build test systems that all ACPICA source
files in the kernel tree have incorrect label indentation. This
patch changes default indent option used in the release process to
fix this bug. Lv Zheng.Signed-off-by: Lv Zheng
Signed-off-by: Bob Moore
Signed-off-by: Rafael J. Wysocki -
Add a comment to clarify reason for using ACPI_FREE_BUFFER directly
instead of ACPI_FREE.In addition to that, change one instance in which ACPI_FREE_BUFFER()
should be used instead of ACPI_FREE().[rjw: Subject and changelog]
Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
For Linux, there are no functional changes/binary generation differences
introduced by this patch.This change adds a new macro to all files that contain external ACPICA
interfaces. It can be detected and used by the host (via the host-specific
header) for any special processing required for such modules. Lv Zheng.Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki
30 Oct, 2013
8 commits
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The ACPI spec requires the reset register width to be 8, so we
now hardcode it and ignore the FADT value. This provides/maintains
compatibility with other ACPI implementations that have allowed
BIOS code with bad register width values to go unnoticed.
Matthew Garett, Bob Moore, Lv Zheng.Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
This change fixes potential memory leaks in the error paths of the GPE
handling code. Lv Zheng.Signed-off-by: Lv Zheng
Signed-off-by: Bob Moore
Signed-off-by: Rafael J. Wysocki -
In the common case, the ACPI_ALLOCATE and related macros now resolve
directly to their respective acpi_os* OSL interfaces. Two options:
1) The ACPI_ALLOCATE_ZEROED macro defaults to a simple local implementation
by default, unless overridden by the USE_NATIVE_ALLOCATE_ZEROED define.
2) For ACPI execution simulation environment (AcpiExec) which is not
shipped with the Linux kernel, the macros can optionally be resolved to
the local interfaces that track each allocation (used to immediately
detect memory leaks).Signed-off-by: Lv Zheng
Signed-off-by: Bob Moore
Signed-off-by: Rafael J. Wysocki -
This change adds and deploys "safe" versions of strcpy and strcat that
ensure that the target buffer does not overflow. These safe functions
are only helpful for processing user input and command lines. For most
ACPICA code however, the required buffer length is precisely calculated
before buffer allocation, so the use of these functions is unnecessary.
ACPICA BZ 1043.This change only applies to the ACPICA utilities and the debugger, none
of which are not shipped with the kernel yet, so the kernel's behavior
remains unchanged after it.References: https://bugs.acpica.org/show_bug.cgi?id=1043
Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
The original upstream ACPICA change added full history and limited
line editing to the debugger:This change adds full history and limited line editing for Unix and
Linux systems. It does not use readline() because of portability issues.
Instead it uses the POSIX termio interface to put the terminal in raw
input mode so that the various special keys can be trapped (such as
up-arrow and down-arrow for history support).Since the debugger is not shipped in the kernel, it only is necessary
to update one header file to keep the kernel source in sync with the
upstream.[rjw: Changelog]
Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
Mostly for consistency. ACPICA BZ 1042.
Actually, currently no one is experiencing problem without this check
as the obj_handle is guaranteed to be valid.References: https://bugs.acpica.org/show_bug.cgi?id=1042
Reported-by: Colin Ian King
Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
This change increases the default width for the length of tables from
5 to 6, to improve alignment/readability on systems with large tables.
These are being seen more frequently, especially large DSDTs (greater
than 1 MB).Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
Set the global debug flag to "no output" when the debugger is shutdown.
ACPICA BZ 1011. Tomasz Nowicki.Since the debugger is not shipped in the Linux kernel upstream, this
change doesn't affect Linux kernel's behavior.References: https://bugs.acpica.org/show_bug.cgi?id=1011
Signed-off-by: Tomasz Nowicki
Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki
14 Oct, 2013
1 commit
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Correct spelling typo within various part of the kernel
Signed-off-by: Masanari Iida
Acked-by: Randy Dunlap
Signed-off-by: Jiri Kosina
24 Sep, 2013
9 commits
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The SCI interrupt number is not needed for the SCI handlers, and was
just unnecessary overhead.Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Reviewed-by: Len Brown
Signed-off-by: Rafael J. Wysocki -
This patch introduces new macors to handle RSDP signature and cleans up the
affected codes. Lv Zheng.
Some updates are only used for ACPICA utilities which are not shipped in
the kernel yet.Signed-off-by: Lv Zheng
Signed-off-by: Bob Moore
Reviewed-by: Len Brown
Signed-off-by: Rafael J. Wysocki -
This patch reduces code redundancy by moving the FACS/S3PT checksum
verification skip logic into acpi_tb_verify_checksum() and other
calls of this function also get benefit from this change. Lv Zheng.Signed-off-by: Lv Zheng
Signed-off-by: Bob Moore
Reviewed-by: Len Brown
Signed-off-by: Rafael J. Wysocki -
Paths command displays the full pathname and object type for
the entire namespace. Alternative to the Namespace command.Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Reviewed-by: Len Brown
Signed-off-by: Rafael J. Wysocki -
This change removes some dangerous code that attempts to free the
handler context pointer in some (rare) circumstances. The owner of
the handler owns this pointer and the ACPICA code should never
touch it. Although not seen to be an issue in any kernel, it did
show up as a problem under AcpiExec. Also, set the internal storage
field for the context pointer to zero when the region is deactivated,
simply for sanity. David Box.Signed-off-by: David E. Box
Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Reviewed-by: Len Brown
Signed-off-by: Rafael J. Wysocki -
This change adds support to allow hosts to install System Control
Interrupt handlers. Certain ACPI functionality requires the host
to handle raw SCIs. For example, the "SCI Doorbell" that is defined
for memory power state support requires the host device driver to
handle SCIs to examine if the doorbell has been activated. Multiple
SCI handlers can be installed to allow for future expansion.
Debugger support is included.
Lv Zheng, Bob Moore. ACPICA BZ 1032.Bug summary:
It is reported when the PCC (Platform Communication Channel, via
MPST table, defined in ACPI specification 5.0) subchannel responds
to the host, it issues an SCI and the host must probe the subchannel
for channel status.Buglink: http://bugs.acpica.org/show_bug.cgi?id=1032
Signed-off-by: Lv Zheng
Signed-off-by: Bob Moore
Reviewed-by: Len Brown
Signed-off-by: Rafael J. Wysocki -
Perform a sanity check on the start object to prevent problems
later. ACPICA BZ 1025.
This patch only adds additional input parameter validation, no actual
kernel suffering has been discovered.Buglink: http://bugs.acpica.org/show_bug.cgi?id=1025
Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Reviewed-by: Len Brown
Signed-off-by: Rafael J. Wysocki -
Increase the size of a couple of the debugger line buffers.
ACPICA BZ 1037.The debugger related code is not in the kernel so the behavior of the
kernel is not affected.Buglink: http://bugs.acpica.org/show_bug.cgi?id=1037
Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Reviewed-by: Len Brown
Signed-off-by: Rafael J. Wysocki -
Allow for longer filenames in the module name output during
trace operations.Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Reviewed-by: Len Brown
Signed-off-by: Rafael J. Wysocki
