2010-11-02 17:06:42 +00:00
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drivers/acpi/acpica/aclocal.h | 7 +--
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drivers/acpi/acpica/evgpe.c | 75 +++++++++++++++-----------------
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drivers/acpi/acpica/evgpeinit.c | 11 +----
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drivers/acpi/acpica/evgpeutil.c | 5 +-
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drivers/acpi/acpica/evxface.c | 23 +++++-----
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drivers/acpi/ec.c | 2 +-
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drivers/acpi/pci_bind.c | 86 ++++++++++++++++++++++++++++++++++++++
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drivers/acpi/sleep.c | 2 +-
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drivers/char/ipmi/ipmi_si_intf.c | 2 +-
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include/acpi/acpixf.h | 3 +-
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10 files changed, 143 insertions(+), 73 deletions(-)
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diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
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index 2ceb0c0..3663362 100644
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--- a/drivers/acpi/acpica/aclocal.h
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+++ b/drivers/acpi/acpica/aclocal.h
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@@ -406,17 +406,16 @@ struct acpi_predefined_data {
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2010-10-11 18:43:19 +00:00
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*
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****************************************************************************/
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-/* Dispatch info for each GPE -- either a method or handler, cannot be both */
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+/* Dispatch info for each GPE */
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struct acpi_handler_info {
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acpi_event_handler address; /* Address of handler, if any */
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void *context; /* Context to be passed to handler */
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- struct acpi_namespace_node *method_node; /* Method node for this GPE level (saved) */
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u8 orig_flags; /* Original misc info about this GPE */
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2010-11-02 17:06:42 +00:00
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u8 orig_enabled; /* Set if the GPE was originally enabled */
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2010-10-11 18:43:19 +00:00
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};
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-union acpi_gpe_dispatch_info {
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+struct acpi_gpe_dispatch_info {
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struct acpi_namespace_node *method_node; /* Method node for this GPE level */
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struct acpi_handler_info *handler;
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};
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2010-11-02 17:06:42 +00:00
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@@ -426,7 +425,7 @@ union acpi_gpe_dispatch_info {
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2010-10-11 18:43:19 +00:00
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* NOTE: Important to keep this struct as small as possible.
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*/
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struct acpi_gpe_event_info {
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- union acpi_gpe_dispatch_info dispatch; /* Either Method or Handler */
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+ struct acpi_gpe_dispatch_info dispatch;
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struct acpi_gpe_register_info *register_info; /* Backpointer to register info */
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u8 flags; /* Misc info about this GPE */
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u8 gpe_number; /* This GPE */
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2010-11-02 17:06:42 +00:00
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diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
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index f226eac..c4b1c4c 100644
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--- a/drivers/acpi/acpica/evgpe.c
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+++ b/drivers/acpi/acpica/evgpe.c
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@@ -474,9 +474,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
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2010-10-11 18:43:19 +00:00
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* Must check for control method type dispatch one more time to avoid a
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* race with ev_gpe_install_handler
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*/
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- if ((local_gpe_event_info.flags & ACPI_GPE_DISPATCH_MASK) ==
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- ACPI_GPE_DISPATCH_METHOD) {
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-
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+ if (local_gpe_event_info.flags & ACPI_GPE_DISPATCH_METHOD) {
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/* Allocate the evaluation information block */
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info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
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2010-11-02 17:06:42 +00:00
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@@ -575,41 +573,15 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
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2010-10-11 18:43:19 +00:00
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}
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/*
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- * Dispatch the GPE to either an installed handler, or the control method
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- * associated with this GPE (_Lxx or _Exx). If a handler exists, we invoke
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- * it and do not attempt to run the method. If there is neither a handler
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- * nor a method, we disable this GPE to prevent further such pointless
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- * events from firing.
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+ * Dispatch the GPE to either any installed handler or control
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+ * method associated with this GPE (_Lxx or _Exx). We invoke
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+ * the method first in case it has side effects that would be
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+ * interfered with if the handler has already altered hardware
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+ * state. If there is neither a handler nor a method, we
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+ * disable this GPE to prevent further such pointless events
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+ * from firing.
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*/
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- switch (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) {
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- case ACPI_GPE_DISPATCH_HANDLER:
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-
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- /*
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- * Invoke the installed handler (at interrupt level)
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- * Ignore return status for now.
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- * TBD: leave GPE disabled on error?
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- */
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- (void)gpe_event_info->dispatch.handler->address(gpe_event_info->
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- dispatch.
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- handler->
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- context);
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-
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- /* It is now safe to clear level-triggered events. */
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-
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- if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
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- ACPI_GPE_LEVEL_TRIGGERED) {
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- status = acpi_hw_clear_gpe(gpe_event_info);
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- if (ACPI_FAILURE(status)) {
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- ACPI_EXCEPTION((AE_INFO, status,
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- "Unable to clear GPE[0x%2X]",
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- gpe_number));
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- return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
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- }
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- }
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- break;
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-
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- case ACPI_GPE_DISPATCH_METHOD:
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-
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+ if (gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD) {
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/*
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* Disable the GPE, so it doesn't keep firing before the method has a
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* chance to run (it runs asynchronously with interrupts enabled).
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2010-11-02 17:06:42 +00:00
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@@ -634,10 +606,34 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
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2010-10-11 18:43:19 +00:00
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"Unable to queue handler for GPE[0x%2X] - event disabled",
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gpe_number));
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}
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- break;
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+ }
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- default:
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+ if (gpe_event_info->flags & ACPI_GPE_DISPATCH_HANDLER) {
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+ /*
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+ * Invoke the installed handler (at interrupt level)
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+ * Ignore return status for now.
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+ * TBD: leave GPE disabled on error?
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+ */
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+ (void)gpe_event_info->dispatch.handler->address(gpe_event_info->
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+ dispatch.
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+ handler->
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+ context);
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2010-11-02 17:06:42 +00:00
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2010-10-11 18:43:19 +00:00
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+ /* It is now safe to clear level-triggered events. */
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+
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+ if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
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+ ACPI_GPE_LEVEL_TRIGGERED) {
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+ status = acpi_hw_clear_gpe(gpe_event_info);
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+ if (ACPI_FAILURE(status)) {
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+ ACPI_EXCEPTION((AE_INFO, status,
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+ "Unable to clear GPE[0x%2X]",
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+ gpe_number));
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+ return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
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+ }
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+ }
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+ }
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2010-11-02 17:06:42 +00:00
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+
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2010-10-11 18:43:19 +00:00
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+ if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)) {
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/*
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* No handler or method to run!
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* 03/2010: This case should no longer be possible. We will not allow
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2010-11-02 17:06:42 +00:00
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@@ -658,7 +654,6 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
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2010-10-11 18:43:19 +00:00
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gpe_number));
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return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
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}
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- break;
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}
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return_UINT32(ACPI_INTERRUPT_HANDLED);
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2010-11-02 17:06:42 +00:00
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diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
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index 2c7def9..9915b52 100644
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--- a/drivers/acpi/acpica/evgpeinit.c
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+++ b/drivers/acpi/acpica/evgpeinit.c
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@@ -386,16 +386,7 @@ acpi_ev_match_gpe_method(acpi_handle obj_handle,
|
2010-10-11 18:43:19 +00:00
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return_ACPI_STATUS(AE_OK);
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}
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- if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
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- ACPI_GPE_DISPATCH_HANDLER) {
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-
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- /* If there is already a handler, ignore this GPE method */
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-
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- return_ACPI_STATUS(AE_OK);
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- }
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-
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- if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
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- ACPI_GPE_DISPATCH_METHOD) {
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+ if (gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD) {
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|
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/*
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|
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* If there is already a method, ignore this method. But check
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* for a type mismatch (if both the _Lxx AND _Exx exist)
|
2010-11-02 17:06:42 +00:00
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|
diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c
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|
index 19a0e51..434ad1b 100644
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|
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--- a/drivers/acpi/acpica/evgpeutil.c
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+++ b/drivers/acpi/acpica/evgpeutil.c
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@@ -323,12 +323,11 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
|
2010-10-11 18:43:19 +00:00
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|
ACPI_GPE_REGISTER_WIDTH)
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+ j];
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|
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- if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
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- ACPI_GPE_DISPATCH_HANDLER) {
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+ if (gpe_event_info->flags & ACPI_GPE_DISPATCH_HANDLER) {
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|
ACPI_FREE(gpe_event_info->dispatch.handler);
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gpe_event_info->dispatch.handler = NULL;
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|
|
gpe_event_info->flags &=
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|
|
- ~ACPI_GPE_DISPATCH_MASK;
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+ ~ACPI_GPE_DISPATCH_HANDLER;
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|
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}
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|
|
|
}
|
|
|
|
}
|
2010-11-02 17:06:42 +00:00
|
|
|
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
|
|
|
|
index 36af222..b097136 100644
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|
|
|
--- a/drivers/acpi/acpica/evxface.c
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|
|
|
+++ b/drivers/acpi/acpica/evxface.c
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|
|
|
@@ -662,6 +662,8 @@ ACPI_EXPORT_SYMBOL(acpi_remove_notify_handler)
|
2010-10-11 18:43:19 +00:00
|
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|
* edge- or level-triggered interrupt.
|
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|
|
* Address - Address of the handler
|
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|
|
* Context - Value passed to the handler on each GPE
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|
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+ * keep_method - Whether the existing method should be
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+ * displaced or kept
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*
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* RETURN: Status
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*
|
2010-11-02 17:06:42 +00:00
|
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|
@@ -671,7 +673,8 @@ ACPI_EXPORT_SYMBOL(acpi_remove_notify_handler)
|
2010-10-11 18:43:19 +00:00
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|
acpi_status
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|
|
acpi_install_gpe_handler(acpi_handle gpe_device,
|
|
|
|
u32 gpe_number,
|
|
|
|
- u32 type, acpi_event_handler address, void *context)
|
|
|
|
+ u32 type, acpi_event_handler address, void *context,
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+ bool keep_method)
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|
{
|
|
|
|
struct acpi_gpe_event_info *gpe_event_info;
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|
|
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struct acpi_handler_info *handler;
|
2010-11-02 17:06:42 +00:00
|
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@@ -711,8 +714,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
|
2010-10-11 18:43:19 +00:00
|
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|
|
|
|
|
/* Make sure that there isn't a handler there already */
|
|
|
|
|
|
|
|
- if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
|
|
|
|
- ACPI_GPE_DISPATCH_HANDLER) {
|
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|
|
+ if (gpe_event_info->flags & ACPI_GPE_DISPATCH_HANDLER) {
|
|
|
|
status = AE_ALREADY_EXISTS;
|
|
|
|
goto free_and_exit;
|
|
|
|
}
|
2010-11-02 17:06:42 +00:00
|
|
|
@@ -721,7 +723,6 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
|
2010-10-11 18:43:19 +00:00
|
|
|
|
|
|
|
handler->address = address;
|
|
|
|
handler->context = context;
|
|
|
|
- handler->method_node = gpe_event_info->dispatch.method_node;
|
|
|
|
handler->orig_flags = gpe_event_info->flags &
|
|
|
|
(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK);
|
|
|
|
|
2010-11-02 17:06:42 +00:00
|
|
|
@@ -732,7 +733,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
|
2010-10-11 18:43:19 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
if ((handler->orig_flags & ACPI_GPE_DISPATCH_METHOD)
|
2010-11-02 17:06:42 +00:00
|
|
|
- && gpe_event_info->runtime_count) {
|
|
|
|
+ && gpe_event_info->runtime_count && !keep_method) {
|
|
|
|
handler->orig_enabled = 1;
|
2010-10-11 18:43:19 +00:00
|
|
|
(void)acpi_raw_disable_gpe(gpe_event_info);
|
2010-11-02 17:06:42 +00:00
|
|
|
}
|
|
|
|
@@ -741,10 +742,10 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
|
2010-10-11 18:43:19 +00:00
|
|
|
|
|
|
|
gpe_event_info->dispatch.handler = handler;
|
|
|
|
|
|
|
|
- /* Setup up dispatch flags to indicate handler (vs. method) */
|
|
|
|
+ if (!keep_method)
|
|
|
|
+ gpe_event_info->flags &=
|
|
|
|
+ ~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK);
|
|
|
|
|
|
|
|
- gpe_event_info->flags &=
|
|
|
|
- ~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK);
|
|
|
|
gpe_event_info->flags |= (u8) (type | ACPI_GPE_DISPATCH_HANDLER);
|
|
|
|
|
|
|
|
acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
|
2010-11-02 17:06:42 +00:00
|
|
|
@@ -813,8 +814,7 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
|
2010-10-11 18:43:19 +00:00
|
|
|
|
|
|
|
/* Make sure that a handler is indeed installed */
|
|
|
|
|
|
|
|
- if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) !=
|
|
|
|
- ACPI_GPE_DISPATCH_HANDLER) {
|
|
|
|
+ if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_HANDLER)) {
|
|
|
|
status = AE_NOT_EXIST;
|
|
|
|
goto unlock_and_exit;
|
|
|
|
}
|
2010-11-02 17:06:42 +00:00
|
|
|
@@ -830,9 +830,8 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
|
2010-10-11 18:43:19 +00:00
|
|
|
|
|
|
|
handler = gpe_event_info->dispatch.handler;
|
|
|
|
|
|
|
|
- /* Restore Method node (if any), set dispatch flags */
|
|
|
|
+ /* Set dispatch flags */
|
|
|
|
|
|
|
|
- gpe_event_info->dispatch.method_node = handler->method_node;
|
|
|
|
gpe_event_info->flags &=
|
|
|
|
~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK);
|
|
|
|
gpe_event_info->flags |= handler->orig_flags;
|
2010-11-02 17:06:42 +00:00
|
|
|
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
|
|
|
|
index 372ff80..9a39f82 100644
|
|
|
|
--- a/drivers/acpi/ec.c
|
|
|
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+++ b/drivers/acpi/ec.c
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@@ -740,7 +740,7 @@ static int ec_install_handlers(struct acpi_ec *ec)
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2010-10-11 18:43:19 +00:00
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return 0;
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status = acpi_install_gpe_handler(NULL, ec->gpe,
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ACPI_GPE_EDGE_TRIGGERED,
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- &acpi_ec_gpe_handler, ec);
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+ &acpi_ec_gpe_handler, ec, false);
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if (ACPI_FAILURE(status))
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return -ENODEV;
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2010-11-02 17:06:42 +00:00
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diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
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index 2ef0409..8b3cc6a 100644
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--- a/drivers/acpi/pci_bind.c
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+++ b/drivers/acpi/pci_bind.c
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2010-10-11 18:43:19 +00:00
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@@ -28,6 +28,7 @@
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#include <linux/pci.h>
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#include <linux/pci-acpi.h>
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#include <linux/acpi.h>
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+#include <linux/list.h>
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#include <linux/pm_runtime.h>
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#include <acpi/acpi_bus.h>
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#include <acpi/acpi_drivers.h>
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@@ -35,6 +36,43 @@
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#define _COMPONENT ACPI_PCI_COMPONENT
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ACPI_MODULE_NAME("pci_bind");
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+static LIST_HEAD(acpi_pci_gpe_devs);
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+
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+struct pci_gpe_dev {
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+ struct list_head node;
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+ struct pci_dev *dev;
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+ acpi_handle gpe_device;
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+ int gpe_number;
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+ struct work_struct work;
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+};
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+
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+static void acpi_pci_wake_handler_work(struct work_struct *work)
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+{
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+ struct pci_gpe_dev *gpe_dev = container_of(work, struct pci_gpe_dev,
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+ work);
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+
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+ pci_check_pme_status(gpe_dev->dev);
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+ pm_runtime_resume(&gpe_dev->dev->dev);
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+ pci_wakeup_event(gpe_dev->dev);
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+ if (gpe_dev->dev->subordinate)
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+ pci_pme_wakeup_bus(gpe_dev->dev->subordinate);
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+}
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+
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+static u32 acpi_pci_wake_handler(void *data)
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+{
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+ long gpe_number = (long) data;
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+ struct pci_gpe_dev *gpe_dev;
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+
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+ list_for_each_entry(gpe_dev, &acpi_pci_gpe_devs, node) {
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+ if (gpe_number != gpe_dev->gpe_number)
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+ continue;
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+
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+ schedule_work(&gpe_dev->work);
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+ }
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+
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+ return ACPI_INTERRUPT_HANDLED;
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+}
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+
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static int acpi_pci_unbind(struct acpi_device *device)
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{
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struct pci_dev *dev;
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2010-11-02 17:06:42 +00:00
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@@ -43,6 +81,30 @@ static int acpi_pci_unbind(struct acpi_device *device)
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2010-10-11 18:43:19 +00:00
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if (!dev)
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goto out;
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+ if (device->wakeup.flags.valid) {
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+ struct pci_gpe_dev *gpe_dev;
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+ struct pci_gpe_dev *tmp;
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+ int gpe_count = 0;
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+ int gpe_number = device->wakeup.gpe_number;
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+ acpi_handle gpe_device = device->wakeup.gpe_device;
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+
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+ list_for_each_entry_safe(gpe_dev, tmp, &acpi_pci_gpe_devs, node) {
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+ if (gpe_dev->dev == dev) {
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+ flush_work(&gpe_dev->work);
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+ list_del(&gpe_dev->node);
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+ kfree(gpe_dev);
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+ } else if (gpe_dev->gpe_number == gpe_number &&
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+ gpe_dev->gpe_device == gpe_device) {
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+ gpe_count++;
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+ }
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+ }
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+
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+ if (gpe_count == 0) {
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+ acpi_remove_gpe_handler(gpe_device, gpe_number,
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+ &acpi_pci_wake_handler);
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+ }
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+ }
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+
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device_set_run_wake(&dev->dev, false);
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pci_acpi_remove_pm_notifier(device);
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2010-11-02 17:06:42 +00:00
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@@ -71,6 +133,30 @@ static int acpi_pci_bind(struct acpi_device *device)
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2010-10-11 18:43:19 +00:00
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return 0;
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pci_acpi_add_pm_notifier(device, dev);
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+ if (device->wakeup.flags.valid) {
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+ struct pci_gpe_dev *gpe_dev;
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+ acpi_handle gpe_device = device->wakeup.gpe_device;
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+ long gpe_number = device->wakeup.gpe_number;
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+
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+ gpe_dev = kmalloc(sizeof(struct pci_gpe_dev), GFP_KERNEL);
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+ if (gpe_dev) {
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+ gpe_dev->dev = dev;
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+ gpe_dev->gpe_device = gpe_device;
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+ gpe_dev->gpe_number = gpe_number;
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+ INIT_WORK(&gpe_dev->work, acpi_pci_wake_handler_work);
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+
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+ acpi_install_gpe_handler(gpe_device, gpe_number,
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+ ACPI_GPE_LEVEL_TRIGGERED,
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+ &acpi_pci_wake_handler,
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+ (void *)gpe_number,
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+ true);
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+ acpi_gpe_can_wake(device->wakeup.gpe_device,
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+ device->wakeup.gpe_number);
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+ device->wakeup.flags.run_wake = 1;
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+ list_add_tail(&gpe_dev->node, &acpi_pci_gpe_devs);
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+ }
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+ }
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+
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if (device->wakeup.flags.run_wake)
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device_set_run_wake(&dev->dev, true);
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2010-11-02 17:06:42 +00:00
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diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
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index 721d93b..b0ddef6 100644
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--- a/drivers/acpi/sleep.c
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+++ b/drivers/acpi/sleep.c
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@@ -643,7 +643,7 @@ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p)
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if (acpi_target_sleep_state != ACPI_STATE_S0 ||
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status != AE_NOT_FOUND)
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d_max = d_min;
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2010-10-11 18:43:19 +00:00
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- } else if (d_max < d_min) {
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+ } else if (ACPI_SUCCESS(status) && d_max < d_min) {
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/* Warn the user of the broken DSDT */
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printk(KERN_WARNING "ACPI: Wrong value from %s\n",
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acpi_method);
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2010-11-02 17:06:42 +00:00
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diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
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index 035da9e..62a48b2 100644
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--- a/drivers/char/ipmi/ipmi_si_intf.c
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+++ b/drivers/char/ipmi/ipmi_si_intf.c
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@@ -1970,7 +1970,7 @@ static int acpi_gpe_irq_setup(struct smi_info *info)
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2010-10-11 18:43:19 +00:00
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info->irq,
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ACPI_GPE_LEVEL_TRIGGERED,
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&ipmi_acpi_gpe,
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- info);
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+ info, false);
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if (status != AE_OK) {
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dev_warn(info->dev, "%s unable to claim ACPI GPE %d,"
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" running polled\n", DEVICE_NAME, info->irq);
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2010-11-02 17:06:42 +00:00
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diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
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index 53b7cfd..740eb7e 100644
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--- a/include/acpi/acpixf.h
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+++ b/include/acpi/acpixf.h
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@@ -258,7 +258,8 @@ acpi_remove_address_space_handler(acpi_handle device,
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2010-10-11 18:43:19 +00:00
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acpi_status
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acpi_install_gpe_handler(acpi_handle gpe_device,
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u32 gpe_number,
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- u32 type, acpi_event_handler address, void *context);
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+ u32 type, acpi_event_handler address, void *context,
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+ bool keep_method);
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acpi_status
|
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acpi_remove_gpe_handler(acpi_handle gpe_device,
|