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ACPICA: Introduce acpi_dispatch_gpe()
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Introduce acpi_dispatch_gpe() as a wrapper around acpi_ev_detect_gpe()
for checking if the given GPE (as represented by a GPE device handle
and a GPE number) is currently active and dispatching it (if that's
the case) outside of interrupt context.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Rafael J. Wysocki committed May 25, 2018
1 parent 67b8d5c commit 7453645
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Showing 3 changed files with 29 additions and 0 deletions.
6 changes: 6 additions & 0 deletions drivers/acpi/acpica/evgpe.c
Original file line number Diff line number Diff line change
Expand Up @@ -634,6 +634,12 @@ acpi_ev_detect_gpe(struct acpi_namespace_node *gpe_device,

flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);

if (!gpe_event_info) {
gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
if (!gpe_event_info)
goto error_exit;
}

/* Get the info block for the entire GPE register */

gpe_register_info = gpe_event_info->register_info;
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22 changes: 22 additions & 0 deletions drivers/acpi/acpica/evxfgpe.c
Original file line number Diff line number Diff line change
Expand Up @@ -637,6 +637,28 @@ acpi_get_gpe_status(acpi_handle gpe_device,

ACPI_EXPORT_SYMBOL(acpi_get_gpe_status)

/*******************************************************************************
*
* FUNCTION: acpi_gispatch_gpe
*
* PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1
* gpe_number - GPE level within the GPE block
*
* RETURN: None
*
* DESCRIPTION: Detect and dispatch a General Purpose Event to either a function
* (e.g. EC) or method (e.g. _Lxx/_Exx) handler.
*
******************************************************************************/
void acpi_dispatch_gpe(acpi_handle gpe_device, u32 gpe_number)
{
ACPI_FUNCTION_TRACE(acpi_dispatch_gpe);

acpi_ev_detect_gpe(gpe_device, NULL, gpe_number);
}

ACPI_EXPORT_SYMBOL(acpi_dispatch_gpe)

/*******************************************************************************
*
* FUNCTION: acpi_finish_gpe
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1 change: 1 addition & 0 deletions include/acpi/acpixf.h
Original file line number Diff line number Diff line change
Expand Up @@ -753,6 +753,7 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
u32 gpe_number,
acpi_event_status
*event_status))
ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_dispatch_gpe(acpi_handle gpe_device, u32 gpe_number))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable_all_gpes(void))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_runtime_gpes(void))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_wakeup_gpes(void))
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