Commit Graph

241 Commits

Author SHA1 Message Date
Len Brown
6e04c417ae Merge branch 'gpe-defer' into release 2010-10-25 02:13:09 -04:00
Len Brown
aca209e5e6 Merge branch 'acpica' into release
Conflicts:
	drivers/acpi/acpica/aclocal.h

Signed-off-by: Len Brown <len.brown@intel.com>
2010-10-25 02:10:36 -04:00
Bob Moore
8df3fc981d Subject: [PATCH] ACPICA: Fix Scope() op in module level code
Some Panasonic Toughbooks create nodes in module level code.
Module level code is the executable AML code outside of control method,
for example, below AML code creates a node \_SB.PCI0.GFX0.DD02.CUBL

        If (\_OSI ("Windows 2006"))
        {
            Scope (\_SB.PCI0.GFX0.DD02)
            {
                Name (CUBL, Ones)
                ...
            }
        }

Scope() op does not actually create a new object, it refers to an
existing object(\_SB.PCI0.GFX0.DD02 in above example). However, for
Scope(), we want to indeed open a new scope, so the child nodes(CUBL in
above example) can be created correctly under it.

https://bugzilla.kernel.org/show_bug.cgi?id=19462

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>
2010-10-23 01:36:40 -04:00
Colin Ian King
49b3c1e04e ACPICA: Clear PCIEXP_WAKE_STS when clearing ACPI events
When clearing status bits via acpi_hw_clear_acpi_status, also clear
the PCIEXP_WAKE_STS bit. Original change from Colin King.
ACPICA BZ 880.

http://www.acpica.org/bugzilla/show_bug.cgi?id=880
http://bugs.launchpad.net/bugs/613381

Signed-off-by: Colin Ian King <colin.king@canonical.com>
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>
2010-10-17 22:55:41 -04:00
Bob Moore
23ebbf0706 ACPICA: Add Vista SP2 to supported _OSI strings
Added "Windows 2006 SP2" for Vista SP2.

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>
2010-10-17 22:55:40 -04:00
Bob Moore
34cf66e724 ACPICA: Eliminate duplicate code in acpi_ut_execute_* functions
Now that the nsrepair code automatically repairs _HID-related
strings, this type of code is no longer needed in acpi_ut_execute_HID,
acpi_ut_execute_CID, and acpi_ut_execute_UID. ACPICA BZ 878.

http://www.acpica.org/bugzilla/show_bug.cgi?id=878

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>
2010-10-17 22:55:39 -04:00
Bob Moore
81256669aa ACPICA: Change type of _TZ from ThermalZone to Device
The type of ThermalZone was confusing hosts as they process the
various ThermalZone objects. ACPICA BZ 876.

http://www.acpica.org/bugzilla/show_bug.cgi?id=876

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>
2010-10-17 22:55:38 -04:00
Bob Moore
3989170f8e ACPICA: Comment update; no functional change
Add a usage note to InstallAddressSpaceHandler.

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>
2010-10-17 22:55:20 -04:00
Bob Moore
75434a2ae3 ACPICA: Increase configurability of error messages
Update to utxferror.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>
2010-10-01 01:47:57 -04:00
Bob Moore
77b23f712b ACPICA: Add repair for _HID and _CID strings
This dynamic repair will fix these problems:
1) Remove a leading asterisk in the string
2) Uppercase the entire string

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>
2010-10-01 01:47:56 -04:00
Bob Moore
cc84e262b7 ACPICA: iASL/Disassembler: Write ACPI errors to stderr instead of output file
This keeps the output files clean of random error messages that
may originate from within the namespace/interpreter 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>
2010-10-01 01:47:56 -04:00
Bob Moore
31b3d4c3b3 ACPICA: Make acpi_gbl_system_awake_and_running publically available
Added extern for this boolean in acpixf.h. Some hosts utilize
this value during suspend/restore operations.

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>
2010-10-01 01:47:56 -04:00
Bob Moore
e786db7540 ACPICA: Update math module; no functional change
Move the 64-bit overlay structures to the utmath module since
they are used nowhere else. Update module comment. ACPICA BZ 829.

http://www.acpica.org/bugzilla/show_bug.cgi?id=829

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>
2010-10-01 01:47:55 -04:00
Lin Ming
28eb3fcf87 ACPICA: Make acpi_thread_id no longer configurable, always u64
Change definition of acpi_thread_id to always be a u64. This
simplifies the code, especially any printf output. u64 is
the only common data type for all thread_id types across all
operating systems. We now force the OSL to cast the native
thread_id type to u64 before returning the value to ACPICA
(via acpi_os_get_thread_id).

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>
2010-10-01 01:47:55 -04:00
Lin Ming
8f40f171a2 ACPICA: Add ACPI_INLINE configuration parameter
The C inline keyword is not standardized, ACPI_INLINE allows this
to be configured on a per-compiler basis.

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>
2010-10-01 01:47:55 -04:00
Bob Moore
95abccb576 ACPICA: Obsolete the acpi_os_derive_pci_id OSL interface
This function is not OS-dependent and has been replaced by
acpi_hw_derive_pci_id, which is now in the ACPICA core code.  Local
implementations of acpi_os_derive_pci_id are no longer necessary and
are removed. ACPICA BZ 857.

http://www.acpica.org/bugzilla/show_bug.cgi?id=857

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>
2010-10-01 01:47:54 -04:00
Lin Ming
b0ed7a915a ACPICA/ACPI: Add new host interfaces for _OSI support
Adds install/remove interfaces so that the host can dynamically
alter the global _OSI table. Also adds support for _OSI handlers.
Additional support: new debugger command (osi), and test support in
the acpiexec utility. Adds new file, utilities/utosi.c.
ACPICA bugzilla 836.

The Linux OSL _OSI code is also changed.
acpi_osi_setup can't call acpi_install/remove_interface because ACPICA
is not initialized yet at this early time.
So we just save the osi string in acpi_osi_setup and will handle it
later in a new function acpi_osi_setup_late.

http://www.acpica.org/bugzilla/show_bug.cgi?id=836

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>
2010-10-01 01:47:43 -04:00
Bob Moore
09387b4315 ACPICA: Revert "Revert "Enable multi-byte EC transfers
This reverts commit f23b9c7(http://git.moblin.org/cgit.cgi/acpica/commit/?id=f23b9c7)
The problem with this change was determined to be a problem with
the FreeBSD host OSL (OS services layer), not with this patch
itself. Therefore, re-introducing this change into the main ACPICA
code. See ACPICA bugzilla 863.

http://www.acpica.org/bugzilla/show_bug.cgi?id=863

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>
2010-10-01 01:46:32 -04:00
Bob Moore
c5f0231ee6 ACPICA: Fix acpi_os_read_pci_configuration prototype
Prototype in acpiosxf.h had the output value pointer as a (u32 *).
Should be a (u64 *).

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>
2010-10-01 01:46:31 -04:00
Len Brown
fdb8c58a16 Merge branches 'apei', 'battery-mwh-fix', 'bugzilla-10807', 'bugzilla-14736', 'bugzilla-14679', 'bugzilla-16396', 'launchpad-613381' and 'misc' into release 2010-09-29 15:18:28 -04:00
Lucas De Marchi
58f87ed0d4 ACPI: Fix typos
Signed-off-by: Len Brown <len.brown@intel.com>
2010-09-28 21:38:19 -04:00
Colin Ian King
573b638158 ACPI: enable repeated PCIEXP wakeup by clearing PCIEXP_WAKE_STS on resume
Section 4.7.3.1.1 (PM1 Status Registers) of version 4.0 of
the ACPI spec concerning PCIEXP_WAKE_STS points out in
in the final note field in table 4-11 that if this bit is
set to 1 and the system is put into a sleeping state then
the system will not automatically wake.

This bit gets set by hardware to indicate that the system
woke up due to a PCI Express wakeup event, so clear it during
acpi_hw_clear_acpi_status() calls to enable subsequent
resumes to work.

BugLink: http://bugs.launchpad.net/bugs/613381

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-09-28 15:40:46 -04:00
Rafael J. Wysocki
a210080195 ACPI / ACPICA: Defer enabling of runtime GPEs (v3)
The current ACPI GPEs initialization code has a problem that it
enables some GPEs pointed to by device _PRW methods, generally
intended for signaling wakeup events (system or device wakeup).
These GPEs are then almost immediately disabled by the ACPI namespace
scanning code with the help of acpi_gpe_can_wake(), but it would be
better not to enable them at all until really necessary.

Modify the initialization of GPEs so that the ones that have
associated _Lxx or _Exx methods and are not pointed to by any _PRW
methods will be enabled after the namespace scan is complete.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-09-24 16:55:47 -04:00
Andi Kleen
cfa806f059 gcc-4.6: ACPI: fix unused but set variables in ACPI
Some minor improvements in error handling, but overall it was mostly dead
code.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-08-15 00:53:08 -04:00
Len Brown
c172cb73bc Merge branch 'acpica-gpe' into release 2010-08-15 00:25:40 -04:00
Zhang Rui
c637e4861c ACPI: introduce module parameter acpi.aml_debug_output
Introduce module parameter acpi.aml_debug_output.

With acpi.aml_debug_output set, we can get AML debug object output
(Store (AAA, Debug)), even with CONFIG_ACPI_DEBUG cleared.

Together with the runtime custom method mechanism,
we can debug AML code problems without rebuilding the kernel.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-08-14 23:02:14 -04:00
Linus Torvalds
9e50ab91d0 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: (27 commits)
  ACPI / ACPICA: Simplify acpi_ev_initialize_gpe_block()
  ACPI / ACPICA: Fail acpi_gpe_wakeup() if ACPI_GPE_CAN_WAKE is unset
  ACPI / ACPICA: Do not execute _PRW methods during initialization
  ACPI: Fix bogus GPE test in acpi_bus_set_run_wake_flags()
  ACPICA: Update version to 20100702
  ACPICA: Fix for Alias references within Package objects
  ACPICA: Fix lint warning for 64-bit constant
  ACPICA: Remove obsolete GPE function
  ACPICA: Update debug output components
  ACPICA: Add support for WDDT - Watchdog Descriptor Table
  ACPICA: Drop acpi_set_gpe
  ACPICA: Use low-level GPE enable during GPE block initialization
  ACPI / EC: Do not use acpi_set_gpe
  ACPI / EC: Drop suspend and resume routines
  ACPICA: Remove wakeup GPE reference counting which is not used
  ACPICA: Introduce acpi_gpe_wakeup()
  ACPICA: Rename acpi_hw_gpe_register_bit
  ACPICA: Update version to 20100528
  ACPICA: Add signatures for undefined tables: ATKG, GSCI, IEIT
  ACPICA: Optimization: Reduce the number of namespace walks
  ...
2010-08-07 17:08:30 -07:00
Rafael J. Wysocki
28f4f8a9de ACPI / ACPICA: Fix reference counting problems with GPE handlers
If a handler is installed for a GPE associated with an AML method and
such that it cannot wake up the system from sleep states, the GPE
remains enabled after the handler has been installed, although it
should be disabled in that case to avoid spurious execution of the
handler.

Fix this issue by making acpi_install_gpe_handler() disable GPEs
that were previously associated with AML methods and cannot wake up
the system from sleep states.

Analogously, make acpi_remove_gpe_handler() enable the GPEs that
are associated with AML methods after their handlers have been
removed and cannot wake up the system from sleep states.  In addition
to that, fix a code ordering issue in acpi_remove_gpe_handler() that
renders the locking ineffective (ACPI_MTX_EVENTS is released
temporarily in the middle of the routine to wait for the completion
of events already in progress).

For this purpose introduce acpi_raw_disable_gpe() and
acpi_raw_enable_gpe() to be called with acpi_gbl_gpe_lock held
and rework acpi_disable_gpe() and acpi_enable_gpe(), respectively, to
use them.  Also rework acpi_gpe_can_wake() to use
acpi_raw_disable_gpe() instead of calling acpi_disable_gpe() after
releasing the lock to avoid the possible theoretical race with
acpi_install_gpe_handler().

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: "Moore, Robert" <robert.moore@intel.com>
Cc: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-08-07 10:30:12 -04:00
Rafael J. Wysocki
a0d468718b ACPI / ACPICA: Simplify acpi_ev_initialize_gpe_block()
Simplify the main loop in acpi_ev_initialize_gpe_block() by
rearranging code and removing the "enabled" label that is not
necessary any more.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-07-12 14:33:35 -04:00
Rafael J. Wysocki
9ce10df8d8 ACPI / ACPICA: Fail acpi_gpe_wakeup() if ACPI_GPE_CAN_WAKE is unset
Make acpi_gpe_wakeup() return error code for GPEs whose
ACPI_GPE_CAN_WAKE flag is not set.  This way acpi_gpe_wakeup() will
only wake for the GPEs reported by the host OS as "wakeup" ones with
the help of acpi_gpe_can_wake().

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-07-12 14:18:39 -04:00
Rafael J. Wysocki
9874647ba1 ACPI / ACPICA: Do not execute _PRW methods during initialization
Currently, during initialization ACPICA walks the entire ACPI
namespace in search of any device objects with assciated _PRW
methods.  All of the _PRW methods found are executed in the process
to extract the GPE information returned by them, so that the GPEs in
question can be marked as "able to wakeup" (more precisely, the
ACPI_GPE_CAN_WAKE flag is set for them).  The only purpose of this
exercise is to avoid enabling the CAN_WAKE GPEs automatically, even
if there are _Lxx/_Exx methods associated with them.  However, it is
both costly and unnecessary, because the host OS has to execute the
_PRW methods anyway to check which devices can wake up the system
from sleep states.  Moreover, it then uses full information
returned by _PRW, including the GPE information, so it can take care
of disabling the GPEs if necessary.

Remove the code that walks the namespace and executes _PRW from
ACPICA and modify comments to reflect that change.  Make
acpi_bus_set_run_wake_flags() disable GPEs for wakeup devices
so that they don't cause spurious wakeup events to be signaled.
This not only reduces the complexity of the ACPICA initialization
code, but in some cases it should reduce the kernel boot time as
well.

Unfortunately, for this purpose we need a new ACPICA function,
acpi_gpe_can_wake(), to be called by the host OS in order to disable
the GPEs that can wake up the system and were previously enabled by
acpi_ev_initialize_gpe_block() or acpi_ev_update_gpes() (such a GPE
should be disabled only once, because the initialization code enables
it only once, but it may be pointed to by _PRW for multiple devices
and that's why the additional function is necessary).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-07-12 14:17:39 -04:00
Bob Moore
09079250db ACPICA: Fix for Alias references within Package objects
This fixes a problem where a reference to an Alias within the
definition of a Package was not always resolved properly. Aliases
to objects like Processors, ThermalZones, etc. were resolved to the
actual object instead of a reference to the object as it should be.
Package objects are only allowed to contain integer, string,
buffer, package, and reference objects.

https://bugzilla.redhat.com/show_bug.cgi?id=608648

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>
2010-07-06 22:34:27 -04:00
Bob Moore
150dba38f0 ACPICA: Fix lint warning for 64-bit constant
cast to u64.

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>
2010-07-06 22:34:27 -04:00
Bob Moore
de5668fe75 ACPICA: Remove obsolete GPE function
Remove acpi_hw_write_gpe_enable_reg, it had been reduced down to a
single line of code, and called from only one place.

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>
2010-07-06 22:34:27 -04:00
Rafael J. Wysocki
546eb57695 ACPICA: Drop acpi_set_gpe
The acpi_set_gpe() function is a little awkward, because it doesn't
really work as advertised in the "disable" case.  Namely, if a GPE
has been enabled with acpi_enable_gpe() and triggered a notification
to occur, and if acpi_set_gpe() is used to disable it before
acpi_ev_asynch_enable_gpe() runs, the GPE will be immediately enabled
by the latter as though the acpi_set_gpe() had no effect.

Thus, since it's been possible to make all of its callers use
alternative operations to disable or enable GPEs, acpi_set_gpe() can
be dropped.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-07-06 22:34:27 -04:00
Rafael J. Wysocki
3bd741bd0d ACPICA: Use low-level GPE enable during GPE block initialization
The GPE block initialization code in acpi_ev_initialize_gpe_block()
uses acpi_set_gpe() to make sure that the GPEs with nonzero
runtime counter will remain enabled, but since it already has
a struct acpi_gpe_event_info object for each GPE, it might use
the low-level GPE enabling function, acpi_clear_and_enable_gpe(),
for this purpose.

To make that happen, move acpi_clear_and_enable_gpe() to
drivers/acpi/acpica/evgpe.c and rename it to acpi_ev_enable_gpe(),
modify the two existing users of it accordingly and modify
acpi_ev_initialize_gpe_block() to use it instead of acpi_set_gpe()
and to check its return value.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
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>
2010-07-06 22:34:27 -04:00
Rafael J. Wysocki
a44061aa8b ACPICA: Remove wakeup GPE reference counting which is not used
After the previous patch that introduced acpi_gpe_wakeup() and
modified the ACPI suspend and wakeup code to use it, the third
argument of acpi_{enable|disable}_gpe() and the GPE wakeup
reference counter are not necessary any more.  Remove them and
modify all of the users of acpi_{enable|disable}_gpe()
accordingly.  Also drop GPE type constants that aren't used
any more.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
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>
2010-07-06 22:34:26 -04:00
Rafael J. Wysocki
e8b6f97010 ACPICA: Introduce acpi_gpe_wakeup()
ACPICA uses reference counters to avoid disabling GPEs too early in
case they have been enabled for many times.  This is done separately
for runtime and for wakeup, but the wakeup GPE reference counter is
not really necessary, because GPEs are only enabled to wake up the
system at the hardware level by acpi_enter_sleep_state().  Thus it
only is necessary to set the corresponding bits in the wakeup enable
masks of these GPEs' registers right before the system enters a sleep
state.  Moreover, the GPE wakeup enable bits can only be set when the
target sleep state of the system is known and they need to be cleared
immediately after wakeup regardless of how many wakeup devices are
associated with a given GPE.

On the basis of the above observations, introduce function
acpi_gpe_wakeup() to be used for setting or clearing the enable bit
corresponding to a given GPE in its enable register's enable_for_wake
mask.  Modify the ACPI suspend and wakeup code the use
acpi_gpe_wakeup() instead of acpi_{enable|disable}_gpe() to set
and clear GPE enable bits in their registers' enable_for_wake masks
during system transitions to a sleep state and back to the working
state, respectively.  [This will allow us to drop the third
argument of acpi_{enable|disable}_gpe() and simplify the GPE
handling code.]

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
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>
2010-07-06 22:34:26 -04:00
Lin Ming
b76df67352 ACPICA: Rename acpi_hw_gpe_register_bit
Rename acpi_hw_gpe_register_bit to acpi_hw_get_gpe_register_bit
in order to be same with ACPICA code base.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-07-06 22:34:26 -04:00
Alexey Starikovskiy
a9fc03125e ACPICA: Optimization: Reduce the number of namespace walks
On control method exit, only walk the namespace if the method is
known to have created namespace objects outside of its local scope.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
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>
2010-07-06 22:33:57 -04:00
Bob Moore
20d33aea7a ACPICA: Update flags for operand object
Remove obsolete AOPOBJ_SINGLE_DATUM. Add AOPOBJ_INVALID for
use if the host OS rejects the address of an operation region
(currently only used by Linux.)

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>
2010-07-06 22:33:56 -04:00
Alexey Starikovskiy
c45b5c0970 ACPICA: Performance enhancement for namespace search and access
This change enhances the performance of namespace searches and
walks by adding a backpointer to the parent in each namespace
node. On large namespaces, this change can improve overall ACPI
performance by up to 9X.  Adding a pointer to each namespace node
increases the overall size of the internal namespace by about 5%,
since each namespace entry usually consists of both a namespace
node and an ACPI operand object.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
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>
2010-07-06 22:33:56 -04:00
Bob Moore
5821f75421 ACPICA: Expand device initialization counters to 32 bits
Expand the various device initialization counters from 16-bit
to 32-bit.  Allows for very large namespaces.

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>
2010-07-06 22:33:56 -04:00
Bob Moore
b27d65975c ACPICA: Core: Replace all %d format specifiers with %u (unsigned)
With only a few exceptions, ACPICA does not use signed integers.
Therefore, %d is incorrect.

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>
2010-07-06 22:33:55 -04:00
Alexey Starikovskiy
96b7b7ad79 ACPICA: Expand initialization counters to 32 bits
Expand the various initialization counters from 16-bit to 32-bit.
Allows for very large namespaces.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
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>
2010-07-06 22:33:55 -04:00
Bob Moore
507f7d5e27 ACPICA: iASL/Core: Add support for _WDG/_WED MS methods
These objects are defined by "Windows Instrumentation", and are
not part of the ACPI spec. Adds compiler support and runtime
typechecking support in the ACPICA core. ACPICA BZ 860.

http://www.acpica.org/bugzilla/show_bug.cgi?id=860

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>
2010-07-06 22:33:55 -04:00
Bob Moore
aa9d36060f ACPICA: Add comment: _BCL cannot be sorted on the fly
Because of package index values used for _BQC and _BCM.

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>
2010-07-06 22:33:54 -04:00
Len Brown
3d695839a1 ACPI: handle systems which asynchoronously enable ACPI mode
Folklore suggested that such systems existed
in the pre-history of ACPI.

However, we removed the SCI_EN polling loop from
acpi_hw_set_mode() in b430acbd7c
because it delayed resume by 3 seconds on boxes
that refused to set SCI_EN.

Matthew removed the call to acpi_enable() from
the suspend resume path.

James found a modern system that still needs to be polled
upon boot.

So here we restore the workaround, except that we
put it in acpi_enable() rather than the low level
acpi_hw_set_mode().

https://bugzilla.kernel.org/show_bug.cgi?id=16271

Signed-off-by: Len Brown <len.brown@intel.com>
2010-06-28 20:55:01 -04:00
Len Brown
d9a799d197 Merge branch 'acpica-cherry-pick' into release 2010-06-12 00:56:15 -04:00
Matthew Garrett
b681f7d9ab ACPICA: Truncate I/O addresses to 16 bits for Windows compatibility
This feature is optional and is enabled if the BIOS requests any
Windows OSI strings. It can also be enabled by the host OS.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
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>
2010-06-12 00:55:50 -04:00