25 Feb, 2011
1 commit
-
Commit bba63a2 (ACPICA: Implicit notify support) introduced a
mechanism that causes a notify request of type
ACPI_NOTIFY_DEVICE_WAKE to be queued automatically by
acpi_ev_asynch_execute_gpe_method() for the device whose _PRW points
to the GPE being handled if that GPE is not associated with an
_Lxx/_Exx method. However, it turns out that on some systems there
are multiple devices with _PRW pointing to the same GPE without
_Lxx/_Exx and the mechanism introduced by commit bba63a2 needs to be
extended so that "implicit" notify requests of type
ACPI_NOTIFY_DEVICE_WAKE can be queued automatically for all those
devices at the same time.Reported-and-tested-by: Matthew Garrett
Signed-off-by: Rafael J. Wysocki
12 Feb, 2011
1 commit
-
Some ACPI BIOSes define _PRW for the root object which causes
acpi_setup_gpe_for_wake() to crash when trying to dereference the
bogus device_node pointer. Avoid the crash by checking if
wake_device is not the root object before attempting to set up the
"implicit notify" mechanism for it.The problem was introduced by commit bba63a296ffab20e08d9e8252d2f0d99
(ACPICA: Implicit notify support) that added the wake_device argument
to acpi_setup_gpe_for_wake().Signed-off-by: Rafael J. Wysocki
19 Jan, 2011
1 commit
-
Signed-off-by: Bob Moore
Signed-off-by: Lin Ming
Signed-off-by: Len Brown
12 Jan, 2011
4 commits
-
Modify/add some comments to minimize ACPICA/linux GPE code divergence.
Acked-by: Rafael J. Wysocki
Signed-off-by: Lin Ming
Signed-off-by: Len Brown -
This feature provides an automatic device notification for wake devices
when a wakeup GPE occurs and there is no corresponding GPE method or
handler. Rather than ignoring such a GPE, an implicit AML Notify
operation is performed on the parent device object.
This feature is not part of the ACPI specification and is provided for
Windows compatibility only.Signed-off-by: Lin Ming
Signed-off-by: Len Brown -
Some function and variable names are renamed to be consistent with
ACPICA code base.acpi_raw_enable_gpe -> acpi_ev_add_gpe_reference
acpi_raw_disable_gpe -> acpi_ev_remove_gpe_reference
acpi_gpe_can_wake -> acpi_setup_gpe_for_wake
acpi_gpe_wakeup -> acpi_set_gpe_wake_mask
acpi_update_gpes -> acpi_update_all_gpes
acpi_all_gpes_initialized -> acpi_gbl_all_gpes_initialized
acpi_handler_info -> acpi_gpe_handler_info
...Signed-off-by: Lin Ming
Signed-off-by: Len Brown -
Create a new file evxfgpe.c and move GPE specific functions to it.
Acked-by: Rafael J. Wysocki
Signed-off-by: Lin Ming
Signed-off-by: Len Brown
