linux.git/include/acpi/actypes.h, branch v2.6.35-rc4

Merge branch 'gpe-regression-fixes' into release

2010-06-12T04:51:49+00:00

ACPI / ACPICA: Avoid writing full enable masks to GPE registers

2010-06-12T04:45:05+00:00

ACPICA uses acpi_hw_write_gpe_enable_reg() to re-enable a GPE after
an event signaled by it has been handled.  However, this function
writes the entire GPE enable mask to the GPE's enable register which
may not be correct.  Namely, if one of the other GPEs in the same
register was previously enabled by acpi_enable_gpe() and subsequently
disabled using acpi_set_gpe(), acpi_hw_write_gpe_enable_reg() will
re-enable it along with the target GPE.

To fix this issue rework acpi_hw_write_gpe_enable_reg() so that it
calls acpi_hw_low_set_gpe() with a special action value,
ACPI_GPE_COND_ENABLE, that will make it only enable the GPE if the
corresponding bit in its register's enable_for_run mask is set.

Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Len Brown

ACPI / ACPICA: Fix low-level GPE manipulation code

2010-06-12T04:44:37+00:00

ACPICA uses acpi_ev_enable_gpe() for enabling GPEs at the low level,
which is incorrect, because this function only enables the GPE if the
corresponding bit in its enable register's enable_for_run mask is set.
This causes acpi_set_gpe() to work incorrectly if used for enabling
GPEs that were not previously enabled with acpi_enable_gpe().  As a
result, among other things, wakeup-only GPEs are never enabled by
acpi_enable_wakeup_device(), so the devices that use them are unable
to wake up the system.

To fix this issue remove acpi_ev_enable_gpe() and its counterpart
acpi_ev_disable_gpe() and replace acpi_hw_low_disable_gpe() with
acpi_hw_low_set_gpe() that will be used instead to manipulate GPE
enable bits at the low level.  Make the users of acpi_ev_enable_gpe()
and acpi_ev_disable_gpe() call acpi_hw_low_set_gpe() instead and
make sure that GPE enable masks are only updated by acpi_enable_gpe()
and acpi_disable_gpe() when GPE reference counters change from 0
to 1 and from 1 to 0, respectively.

Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Len Brown

ACPICA: Update/clarify some parameter names associated with acpi_handle

2010-05-06T07:05:54+00:00

Simple rename of some parameters to standardize them.

Signed-off-by: Bob Moore 
Signed-off-by: Lin Ming 
Signed-off-by: Len Brown

ACPICA: Minimize the differences between linux GPE code and ACPICA code base

2010-04-20T14:43:16+00:00

We have ported Rafael's major GPE changes
(ACPI: Use GPE reference counting to support shared GPEs) into ACPICA code base.
But the port and Rafael's original patch have some differences, so we made
below patch to make linux GPE code consistent with ACPICA code base.

Most changes are about comments and coding styles.
Other noticeable changes are based on:

Rafael: Reduce code duplication related to GPE lookup
https://patchwork.kernel.org/patch/86237/

Rafael: Always use the same lock for GPE locking
https://patchwork.kernel.org/patch/90471/

A new field gpe_count in struct acpi_gpe_block_info to record the number
of individual GPEs in block.

Rename acpi_ev_save_method_info to acpi_ev_match_gpe_method.

Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Robert Moore 
Signed-off-by: Lin Ming 
Signed-off-by: Len Brown

Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

2010-03-01T18:36:22+00:00

* '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

ACPI: Use GPE reference counting to support shared GPEs

2010-02-23T00:20:45+00:00

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 .

Signed-off-by: Matthew Garrett 
Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Jesse Barnes

ACPICA: Remove unused uint32_struct type

2010-01-22T17:30:08+00:00

This type is not used in ACPICA and thus removed.

Signed-off-by: Bob Moore 
Signed-off-by: Lin Ming 
Signed-off-by: Len Brown

ACPICA: Remove obsolete ACPI_INTEGER (acpi_integer) type

2010-01-22T17:30:06+00:00

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 
Signed-off-by: Lin Ming 
Signed-off-by: Len Brown

ACPICA: Update all ACPICA copyrights and signons to 2010

2010-01-22T17:30:05+00:00

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 
Signed-off-by: Lin Ming 
Signed-off-by: Len Brown