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ACPI: Enhance /sys/firmware/interrupts to allow enable/disable/clear from user-space

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Allow users to enable/disable/clear a specific & valid GPE/Fixed Event
in user space.

This is useful for debugging, especially for some
interrupt storm issues.

All wakeup GPEs are disabled and they can not be enabled at runtime,
and we mark them as invalid.

All GPEs that don't have a _Lxx/_Exx method are marked as invalid.

All Fixed Events that don't have an event handler are marked as invalid
and they can't be enabled until an event handler is registered.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Ling Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
This commit is contained in:
Zhang Rui
2008-06-20 09:42:47 +08:00
committed by Andi Kleen
parent 9c9f6d052d
commit 71b58cbb0c
6 changed files with 258 additions and 64 deletions
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2
include/acpi/achware.h
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@@ -102,11 +102,9 @@ acpi_status
acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
struct acpi_gpe_block_info *gpe_block);
#ifdef ACPI_FUTURE_USAGE
acpi_status
acpi_hw_get_gpe_status(struct acpi_gpe_event_info *gpe_event_info,
acpi_event_status * event_status);
#endif /* ACPI_FUTURE_USAGE */
acpi_status acpi_hw_disable_all_gpes(void);