Commit Graph

18 Commits

Author SHA1 Message Date
Linus Torvalds
bc53515413 Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI: replace acpi_integer by u64
  ACPICA: Update version to 20100121.
  ACPICA: Remove unused uint32_struct type
  ACPICA: Disassembler: Remove obsolete "Integer64" field in parse object
  ACPICA: Remove obsolete ACPI_INTEGER (acpi_integer) type
  ACPICA: Predefined name repair: fix NULL package elements
  ACPICA: AcpiGetDevices: Eliminate unnecessary _STA calls
  ACPICA: Update all ACPICA copyrights and signons to 2010
  ACPICA: Update for new gcc-4 warning options
2010-03-01 10:36:22 -08:00
Rafael J. Wysocki
9630bdd9b1 ACPI: Use GPE reference counting to support shared GPEs
ACPI GPEs may map to multiple devices.  The current GPE interface
only provides a mechanism for enabling and disabling GPEs, making
it difficult to change the state of GPEs at runtime without extensive
cooperation between devices.

Add an API to allow devices to indicate whether or not they want
their device's GPE to be enabled for both runtime and wakeup events.

Remove the old GPE type handling entirely, which gets rid of various
quirks, like the implicit disabling with GPE type setting. This
requires a small amount of rework in order to ensure that non-wake
GPEs are enabled by default to preserve existing behaviour.

Based on patches from Matthew Garrett <mjg@redhat.com>.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-22 16:20:45 -08:00
Bob Moore
758d49313d ACPICA: Disassembler: Remove obsolete "Integer64" field in parse object
This field is no longer needed. The "Integer" field is 64 bit
and is sufficient.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-22 12:30:08 -05:00
Bob Moore
5df7e6cb42 ACPICA: Remove obsolete ACPI_INTEGER (acpi_integer) type
This type was introduced as the code was migrated from ACPI 1.0
(with 32-bit AML integers) to ACPI 2.0 (with 64-bit integers). It
is now obsolete and this change removes it from the ACPICA code
base, replaced by u64.  The original typedef has been retained
for now for compatibility with existing device driver code.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-22 12:30:06 -05:00
Bob Moore
091f4d7186 ACPICA: Predefined name repair: fix NULL package elements
For the predefined methods that return fixed-length packages
(or subpackages), attempt repair for a NULL element. Create an
Integer of value 0, a NULL String, or a zero-length buffer as
appropriate.

http://www.acpica.org/bugzilla/show_bug.cgi?id=818

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-22 12:30:06 -05:00
Bob Moore
a8357b0c95 ACPICA: Update all ACPICA copyrights and signons to 2010
Add 2010 copyright to all module headers and signons, including
the Linux header. This affects virtually every file in the ACPICA
core subsystem, iASL compiler, and all utilities.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-22 12:30:05 -05:00
Bob Moore
eb75255246 ACPICA: Update _OSI with new Windows OS strings
Added strings for Windows server 2008, Windows Vista SP1,
Windows 7, and Windows server 2008 R2.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-08 22:28:34 -04:00
Bob Moore
0444e8f6d7 ACPICA: Fix: Predefined object repair executed only once
This fixes a problem where the code that attempts to repair/convert
an object of incorrect type is only executed on the first time the
predefined method is called. The mechanism that disables warnings
on subsequent calls was interfering with the repair mechanism.
ACPICA BZ 781.

http://acpica.org/bugzilla/show_bug.cgi?id=781

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-08-27 10:17:20 -04:00
Bob Moore
b1cd843be7 ACPICA: Disable preservation of SCI enable bit (SCI_EN)
Preserving this bit breaks some machines. Not preserving this bit
seems to work OK in all cases, even though this goes against the
ACPI spec.

http://bugzilla.kernel.org/show_bug.cgi?id=13289

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-27 00:41:34 -04:00
Lin Ming
b2f7ddcfcb ACPICA: New: AcpiInstallMethod - install a single control method
This interface enables the override or creation of a single
control method. Useful to repair a bug or install a missing method.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-27 00:35:51 -04:00
Lin Ming
975b3c474c ACPI: resume: re-enable SCI-enable workaround
The BIOS bug workaround mistakenly got disabled
when we followed the ACPI specification more closely
by ignoring OS updates to that bit.

(The BIOS is supposed to update SCI_EN, not the OS)

http://bugzilla.kernel.org/show_bug.cgi?id=13289

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-15 22:27:49 -04:00
Lin Ming
c3dd25f4c1 ACPICA: Clear PM register write-only bits on reading
Affects PM1 Control register only. When reading the register, zero
the write-only bits as per the ACPI spec.  ACPICA BZ 443. Lin Ming.

http://www.acpica.org/bugzilla/show_bug.cgi?id=443

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-27 12:11:03 -04:00
Bob Moore
7f07190390 ACPICA: New: I/O port protection
Protect certain I/O ports from reads/writes. Provides MS
compatibility. New module, hwvalid.c

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-27 12:11:03 -04:00
Bob Moore
20869dcfde ACPICA: Preserve all PM control reserved and ignored bits
As per the ACPI specification, preserve (read/modify/write) all
bits that are defined as either reserved or ignored (PM control
control registers only.)

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-27 12:11:03 -04:00
Bob Moore
8a335a2331 ACPICA: Fix AcpiWalkNamespace race condition with table unload
Added a reader/writer locking mechanism to allow multiple
concurrent namespace walks (readers), but a dynamic table unload
will have exclusive access to the namespace. This fixes a problem
where a table unload could delete the portion of the namespace that
is currently being examined by a walk.  Adds a new file, utlock.c
that implements the reader/writer lock mechanism. ACPICA BZ 749.

http://www.acpica.org/bugzilla/show_bug.cgi?id=749

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-27 12:11:02 -04:00
Bob Moore
32c9ef994d ACPICA: Add function to handle PM1 control registers
Added acpi_hw_write_pm1_control. This function writes both of the PM1
control registers (A/B). These registers are different than than
the PM1 A/B status and enable registers in that different values
can be written to the A/B registers.  Most notably, the SLP_TYP
bits can be different, as per the values returned from the _Sx
predefined methods.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-26 16:38:26 -04:00
Bob Moore
82d79b8664 ACPICA: Remove redundant ACPI_BITREG_SLEEP_TYPE_B
This type is the same as TYPE_A. Removed this and all related
instances.  Renamed SLEEP_TYPE_A to simply SLEEP_TYPE.
ACPICA BZ 754.

http://www.acpica.org/bugzilla/show_bug.cgi?id=754

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-26 16:38:26 -04:00
Len Brown
e2f7a77728 ACPICA: hide private headers
Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-09 03:31:01 -05:00