diff options
Diffstat (limited to 'events/evgpeblk.c')
| -rw-r--r-- | events/evgpeblk.c | 774 |
1 files changed, 16 insertions, 758 deletions
diff --git a/events/evgpeblk.c b/events/evgpeblk.c index b109673ba8ee..721411703e85 100644 --- a/events/evgpeblk.c +++ b/events/evgpeblk.c @@ -124,28 +124,6 @@ /* Local prototypes */ static ACPI_STATUS -AcpiEvMatchGpeMethod ( - ACPI_HANDLE ObjHandle, - UINT32 Level, - void *ObjDesc, - void **ReturnValue); - -static ACPI_STATUS -AcpiEvMatchPrwAndGpe ( - ACPI_HANDLE ObjHandle, - UINT32 Level, - void *Info, - void **ReturnValue); - -static ACPI_GPE_XRUPT_INFO * -AcpiEvGetGpeXruptBlock ( - UINT32 InterruptNumber); - -static ACPI_STATUS -AcpiEvDeleteGpeXrupt ( - ACPI_GPE_XRUPT_INFO *GpeXrupt); - -static ACPI_STATUS AcpiEvInstallGpeBlock ( ACPI_GPE_BLOCK_INFO *GpeBlock, UINT32 InterruptNumber); @@ -157,581 +135,6 @@ AcpiEvCreateGpeInfoBlocks ( /******************************************************************************* * - * FUNCTION: AcpiEvValidGpeEvent - * - * PARAMETERS: GpeEventInfo - Info for this GPE - * - * RETURN: TRUE if the GpeEvent is valid - * - * DESCRIPTION: Validate a GPE event. DO NOT CALL FROM INTERRUPT LEVEL. - * Should be called only when the GPE lists are semaphore locked - * and not subject to change. - * - ******************************************************************************/ - -BOOLEAN -AcpiEvValidGpeEvent ( - ACPI_GPE_EVENT_INFO *GpeEventInfo) -{ - ACPI_GPE_XRUPT_INFO *GpeXruptBlock; - ACPI_GPE_BLOCK_INFO *GpeBlock; - - - ACPI_FUNCTION_ENTRY (); - - - /* No need for spin lock since we are not changing any list elements */ - - /* Walk the GPE interrupt levels */ - - GpeXruptBlock = AcpiGbl_GpeXruptListHead; - while (GpeXruptBlock) - { - GpeBlock = GpeXruptBlock->GpeBlockListHead; - - /* Walk the GPE blocks on this interrupt level */ - - while (GpeBlock) - { - if ((&GpeBlock->EventInfo[0] <= GpeEventInfo) && - (&GpeBlock->EventInfo[GpeBlock->GpeCount] > GpeEventInfo)) - { - return (TRUE); - } - - GpeBlock = GpeBlock->Next; - } - - GpeXruptBlock = GpeXruptBlock->Next; - } - - return (FALSE); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvWalkGpeList - * - * PARAMETERS: GpeWalkCallback - Routine called for each GPE block - * Context - Value passed to callback - * - * RETURN: Status - * - * DESCRIPTION: Walk the GPE lists. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiEvWalkGpeList ( - ACPI_GPE_CALLBACK GpeWalkCallback, - void *Context) -{ - ACPI_GPE_BLOCK_INFO *GpeBlock; - ACPI_GPE_XRUPT_INFO *GpeXruptInfo; - ACPI_STATUS Status = AE_OK; - ACPI_CPU_FLAGS Flags; - - - ACPI_FUNCTION_TRACE (EvWalkGpeList); - - - Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock); - - /* Walk the interrupt level descriptor list */ - - GpeXruptInfo = AcpiGbl_GpeXruptListHead; - while (GpeXruptInfo) - { - /* Walk all Gpe Blocks attached to this interrupt level */ - - GpeBlock = GpeXruptInfo->GpeBlockListHead; - while (GpeBlock) - { - /* One callback per GPE block */ - - Status = GpeWalkCallback (GpeXruptInfo, GpeBlock, Context); - if (ACPI_FAILURE (Status)) - { - if (Status == AE_CTRL_END) /* Callback abort */ - { - Status = AE_OK; - } - goto UnlockAndExit; - } - - GpeBlock = GpeBlock->Next; - } - - GpeXruptInfo = GpeXruptInfo->Next; - } - -UnlockAndExit: - AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags); - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvDeleteGpeHandlers - * - * PARAMETERS: GpeXruptInfo - GPE Interrupt info - * GpeBlock - Gpe Block info - * - * RETURN: Status - * - * DESCRIPTION: Delete all Handler objects found in the GPE data structs. - * Used only prior to termination. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiEvDeleteGpeHandlers ( - ACPI_GPE_XRUPT_INFO *GpeXruptInfo, - ACPI_GPE_BLOCK_INFO *GpeBlock, - void *Context) -{ - ACPI_GPE_EVENT_INFO *GpeEventInfo; - UINT32 i; - UINT32 j; - - - ACPI_FUNCTION_TRACE (EvDeleteGpeHandlers); - - - /* Examine each GPE Register within the block */ - - for (i = 0; i < GpeBlock->RegisterCount; i++) - { - /* Now look at the individual GPEs in this byte register */ - - for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) - { - GpeEventInfo = &GpeBlock->EventInfo[((ACPI_SIZE) i * - ACPI_GPE_REGISTER_WIDTH) + j]; - - if ((GpeEventInfo->Flags & ACPI_GPE_DISPATCH_MASK) == - ACPI_GPE_DISPATCH_HANDLER) - { - ACPI_FREE (GpeEventInfo->Dispatch.Handler); - GpeEventInfo->Dispatch.Handler = NULL; - GpeEventInfo->Flags &= ~ACPI_GPE_DISPATCH_MASK; - } - } - } - - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvMatchGpeMethod - * - * PARAMETERS: Callback from WalkNamespace - * - * RETURN: Status - * - * DESCRIPTION: Called from AcpiWalkNamespace. Expects each object to be a - * control method under the _GPE portion of the namespace. - * Extract the name and GPE type from the object, saving this - * information for quick lookup during GPE dispatch - * - * The name of each GPE control method is of the form: - * "_Lxx" or "_Exx", where: - * L - means that the GPE is level triggered - * E - means that the GPE is edge triggered - * xx - is the GPE number [in HEX] - * - ******************************************************************************/ - -static ACPI_STATUS -AcpiEvMatchGpeMethod ( - ACPI_HANDLE ObjHandle, - UINT32 Level, - void *ObjDesc, - void **ReturnValue) -{ - ACPI_NAMESPACE_NODE *MethodNode = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle); - ACPI_GPE_BLOCK_INFO *GpeBlock = (void *) ObjDesc; - ACPI_GPE_EVENT_INFO *GpeEventInfo; - UINT32 GpeNumber; - char Name[ACPI_NAME_SIZE + 1]; - UINT8 Type; - - - ACPI_FUNCTION_TRACE (EvMatchGpeMethod); - - - /* - * Match and decode the _Lxx and _Exx GPE method names - * - * 1) Extract the method name and null terminate it - */ - ACPI_MOVE_32_TO_32 (Name, &MethodNode->Name.Integer); - Name[ACPI_NAME_SIZE] = 0; - - /* 2) Name must begin with an underscore */ - - if (Name[0] != '_') - { - return_ACPI_STATUS (AE_OK); /* Ignore this method */ - } - - /* - * 3) Edge/Level determination is based on the 2nd character - * of the method name - * - * NOTE: Default GPE type is RUNTIME only. Later, if a _PRW object is - * found that points to this GPE, the ACPI_GPE_CAN_WAKE flag is set. - */ - switch (Name[1]) - { - case 'L': - Type = ACPI_GPE_LEVEL_TRIGGERED; - break; - - case 'E': - Type = ACPI_GPE_EDGE_TRIGGERED; - break; - - default: - /* Unknown method type, just ignore it */ - - ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, - "Ignoring unknown GPE method type: %s " - "(name not of form _Lxx or _Exx)", Name)); - return_ACPI_STATUS (AE_OK); - } - - /* 4) The last two characters of the name are the hex GPE Number */ - - GpeNumber = ACPI_STRTOUL (&Name[2], NULL, 16); - if (GpeNumber == ACPI_UINT32_MAX) - { - /* Conversion failed; invalid method, just ignore it */ - - ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, - "Could not extract GPE number from name: %s " - "(name is not of form _Lxx or _Exx)", Name)); - return_ACPI_STATUS (AE_OK); - } - - /* Ensure that we have a valid GPE number for this GPE block */ - - GpeEventInfo = AcpiEvLowGetGpeInfo (GpeNumber, GpeBlock); - if (!GpeEventInfo) - { - /* - * This GpeNumber is not valid for this GPE block, just ignore it. - * However, it may be valid for a different GPE block, since GPE0 - * and GPE1 methods both appear under \_GPE. - */ - return_ACPI_STATUS (AE_OK); - } - - /* - * Add the GPE information from above to the GpeEventInfo block for - * use during dispatch of this GPE. - */ - GpeEventInfo->Flags = (UINT8) (Type | ACPI_GPE_DISPATCH_METHOD); - GpeEventInfo->Dispatch.MethodNode = MethodNode; - - ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, - "Registered GPE method %s as GPE number 0x%.2X\n", - Name, GpeNumber)); - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvMatchPrwAndGpe - * - * PARAMETERS: Callback from WalkNamespace - * - * RETURN: Status. NOTE: We ignore errors so that the _PRW walk is - * not aborted on a single _PRW failure. - * - * DESCRIPTION: Called from AcpiWalkNamespace. Expects each object to be a - * Device. Run the _PRW method. If present, extract the GPE - * number and mark the GPE as a CAN_WAKE GPE. - * - ******************************************************************************/ - -static ACPI_STATUS -AcpiEvMatchPrwAndGpe ( - ACPI_HANDLE ObjHandle, - UINT32 Level, - void *Info, - void **ReturnValue) -{ - ACPI_GPE_WALK_INFO *GpeInfo = (void *) Info; - ACPI_NAMESPACE_NODE *GpeDevice; - ACPI_GPE_BLOCK_INFO *GpeBlock; - ACPI_NAMESPACE_NODE *TargetGpeDevice; - ACPI_GPE_EVENT_INFO *GpeEventInfo; - ACPI_OPERAND_OBJECT *PkgDesc; - ACPI_OPERAND_OBJECT *ObjDesc; - UINT32 GpeNumber; - ACPI_STATUS Status; - - - ACPI_FUNCTION_TRACE (EvMatchPrwAndGpe); - - - /* Check for a _PRW method under this device */ - - Status = AcpiUtEvaluateObject (ObjHandle, METHOD_NAME__PRW, - ACPI_BTYPE_PACKAGE, &PkgDesc); - if (ACPI_FAILURE (Status)) - { - /* Ignore all errors from _PRW, we don't want to abort the walk */ - - return_ACPI_STATUS (AE_OK); - } - - /* The returned _PRW package must have at least two elements */ - - if (PkgDesc->Package.Count < 2) - { - goto Cleanup; - } - - /* Extract pointers from the input context */ - - GpeDevice = GpeInfo->GpeDevice; - GpeBlock = GpeInfo->GpeBlock; - - /* - * The _PRW object must return a package, we are only interested in the - * first element - */ - ObjDesc = PkgDesc->Package.Elements[0]; - - if (ObjDesc->Common.Type == ACPI_TYPE_INTEGER) - { - /* Use FADT-defined GPE device (from definition of _PRW) */ - - TargetGpeDevice = AcpiGbl_FadtGpeDevice; - - /* Integer is the GPE number in the FADT described GPE blocks */ - - GpeNumber = (UINT32) ObjDesc->Integer.Value; - } - else if (ObjDesc->Common.Type == ACPI_TYPE_PACKAGE) - { - /* Package contains a GPE reference and GPE number within a GPE block */ - - if ((ObjDesc->Package.Count < 2) || - ((ObjDesc->Package.Elements[0])->Common.Type != - ACPI_TYPE_LOCAL_REFERENCE) || - ((ObjDesc->Package.Elements[1])->Common.Type != - ACPI_TYPE_INTEGER)) - { - goto Cleanup; - } - - /* Get GPE block reference and decode */ - - TargetGpeDevice = ObjDesc->Package.Elements[0]->Reference.Node; - GpeNumber = (UINT32) ObjDesc->Package.Elements[1]->Integer.Value; - } - else - { - /* Unknown type, just ignore it */ - - goto Cleanup; - } - - /* - * Is this GPE within this block? - * - * TRUE if and only if these conditions are true: - * 1) The GPE devices match. - * 2) The GPE index(number) is within the range of the Gpe Block - * associated with the GPE device. - */ - if (GpeDevice != TargetGpeDevice) - { - goto Cleanup; - } - - GpeEventInfo = AcpiEvLowGetGpeInfo (GpeNumber, GpeBlock); - if (GpeEventInfo) - { - /* This GPE can wake the system */ - - GpeEventInfo->Flags |= ACPI_GPE_CAN_WAKE; - } - -Cleanup: - AcpiUtRemoveReference (PkgDesc); - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvGetGpeXruptBlock - * - * PARAMETERS: InterruptNumber - Interrupt for a GPE block - * - * RETURN: A GPE interrupt block - * - * DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt - * block per unique interrupt level used for GPEs. Should be - * called only when the GPE lists are semaphore locked and not - * subject to change. - * - ******************************************************************************/ - -static ACPI_GPE_XRUPT_INFO * -AcpiEvGetGpeXruptBlock ( - UINT32 InterruptNumber) -{ - ACPI_GPE_XRUPT_INFO *NextGpeXrupt; - ACPI_GPE_XRUPT_INFO *GpeXrupt; - ACPI_STATUS Status; - ACPI_CPU_FLAGS Flags; - - - ACPI_FUNCTION_TRACE (EvGetGpeXruptBlock); - - - /* No need for lock since we are not changing any list elements here */ - - NextGpeXrupt = AcpiGbl_GpeXruptListHead; - while (NextGpeXrupt) - { - if (NextGpeXrupt->InterruptNumber == InterruptNumber) - { - return_PTR (NextGpeXrupt); - } - - NextGpeXrupt = NextGpeXrupt->Next; - } - - /* Not found, must allocate a new xrupt descriptor */ - - GpeXrupt = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_GPE_XRUPT_INFO)); - if (!GpeXrupt) - { - return_PTR (NULL); - } - - GpeXrupt->InterruptNumber = InterruptNumber; - - /* Install new interrupt descriptor with spin lock */ - - Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock); - if (AcpiGbl_GpeXruptListHead) - { - NextGpeXrupt = AcpiGbl_GpeXruptListHead; - while (NextGpeXrupt->Next) - { - NextGpeXrupt = NextGpeXrupt->Next; - } - - NextGpeXrupt->Next = GpeXrupt; - GpeXrupt->Previous = NextGpeXrupt; - } - else - { - AcpiGbl_GpeXruptListHead = GpeXrupt; - } - AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags); - - /* Install new interrupt handler if not SCI_INT */ - - if (InterruptNumber != AcpiGbl_FADT.SciInterrupt) - { - Status = AcpiOsInstallInterruptHandler (InterruptNumber, - AcpiEvGpeXruptHandler, GpeXrupt); - if (ACPI_FAILURE (Status)) - { - ACPI_ERROR ((AE_INFO, - "Could not install GPE interrupt handler at level 0x%X", - InterruptNumber)); - return_PTR (NULL); - } - } - - return_PTR (GpeXrupt); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvDeleteGpeXrupt - * - * PARAMETERS: GpeXrupt - A GPE interrupt info block - * - * RETURN: Status - * - * DESCRIPTION: Remove and free a GpeXrupt block. Remove an associated - * interrupt handler if not the SCI interrupt. - * - ******************************************************************************/ - -static ACPI_STATUS -AcpiEvDeleteGpeXrupt ( - ACPI_GPE_XRUPT_INFO *GpeXrupt) -{ - ACPI_STATUS Status; - ACPI_CPU_FLAGS Flags; - - - ACPI_FUNCTION_TRACE (EvDeleteGpeXrupt); - - - /* We never want to remove the SCI interrupt handler */ - - if (GpeXrupt->InterruptNumber == AcpiGbl_FADT.SciInterrupt) - { - GpeXrupt->GpeBlockListHead = NULL; - return_ACPI_STATUS (AE_OK); - } - - /* Disable this interrupt */ - - Status = AcpiOsRemoveInterruptHandler ( - GpeXrupt->InterruptNumber, AcpiEvGpeXruptHandler); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - /* Unlink the interrupt block with lock */ - - Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock); - if (GpeXrupt->Previous) - { - GpeXrupt->Previous->Next = GpeXrupt->Next; - } - else - { - /* No previous, update list head */ - - AcpiGbl_GpeXruptListHead = GpeXrupt->Next; - } - - if (GpeXrupt->Next) - { - GpeXrupt->Next->Previous = GpeXrupt->Previous; - } - AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags); - - /* Free the block */ - - ACPI_FREE (GpeXrupt); - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * * FUNCTION: AcpiEvInstallGpeBlock * * PARAMETERS: GpeBlock - New GPE block @@ -1041,6 +444,7 @@ AcpiEvCreateGpeBlock ( { ACPI_STATUS Status; ACPI_GPE_BLOCK_INFO *GpeBlock; + ACPI_GPE_WALK_INFO WalkInfo; ACPI_FUNCTION_TRACE (EvCreateGpeBlock); @@ -1089,11 +493,16 @@ AcpiEvCreateGpeBlock ( return_ACPI_STATUS (Status); } - /* Find all GPE methods (_Lxx, _Exx) for this block */ + /* Find all GPE methods (_Lxx or_Exx) for this block */ + + WalkInfo.GpeBlock = GpeBlock; + WalkInfo.GpeDevice = GpeDevice; + WalkInfo.EnableThisGpe = FALSE; + WalkInfo.ExecuteByOwnerId = FALSE; Status = AcpiNsWalkNamespace (ACPI_TYPE_METHOD, GpeDevice, ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, - AcpiEvMatchGpeMethod, NULL, GpeBlock, NULL); + AcpiEvMatchGpeMethod, NULL, &WalkInfo, NULL); /* Return the new block */ @@ -1139,7 +548,7 @@ AcpiEvInitializeGpeBlock ( { ACPI_STATUS Status; ACPI_GPE_EVENT_INFO *GpeEventInfo; - ACPI_GPE_WALK_INFO GpeInfo; + ACPI_GPE_WALK_INFO WalkInfo; UINT32 WakeGpeCount; UINT32 GpeEnabledCount; UINT32 GpeIndex; @@ -1170,12 +579,13 @@ AcpiEvInitializeGpeBlock ( * definition a wake GPE and will not be enabled while the machine * is running. */ - GpeInfo.GpeBlock = GpeBlock; - GpeInfo.GpeDevice = GpeDevice; + WalkInfo.GpeBlock = GpeBlock; + WalkInfo.GpeDevice = GpeDevice; + WalkInfo.ExecuteByOwnerId = FALSE; Status = AcpiNsWalkNamespace (ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, - AcpiEvMatchPrwAndGpe, NULL, &GpeInfo, NULL); + AcpiEvMatchPrwAndGpe, NULL, &WalkInfo, NULL); if (ACPI_FAILURE (Status)) { ACPI_EXCEPTION ((AE_INFO, Status, "While executing _PRW methods")); @@ -1238,165 +648,13 @@ AcpiEvInitializeGpeBlock ( } } - ACPI_DEBUG_PRINT ((ACPI_DB_INIT, - "Found %u Wake, Enabled %u Runtime GPEs in this block\n", - WakeGpeCount, GpeEnabledCount)); - - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvGpeInitialize - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Initialize the GPE data structures - * - ******************************************************************************/ - -ACPI_STATUS -AcpiEvGpeInitialize ( - void) -{ - UINT32 RegisterCount0 = 0; - UINT32 RegisterCount1 = 0; - UINT32 GpeNumberMax = 0; - ACPI_STATUS Status; - - - ACPI_FUNCTION_TRACE (EvGpeInitialize); - - - Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - /* - * Initialize the GPE Block(s) defined in the FADT - * - * Why the GPE register block lengths are divided by 2: From the ACPI - * Spec, section "General-Purpose Event Registers", we have: - * - * "Each register block contains two registers of equal length - * GPEx_STS and GPEx_EN (where x is 0 or 1). The length of the - * GPE0_STS and GPE0_EN registers is equal to half the GPE0_LEN - * The length of the GPE1_STS and GPE1_EN registers is equal to - * half the GPE1_LEN. If a generic register block is not supported - * then its respective block pointer and block length values in the - * FADT table contain zeros. The GPE0_LEN and GPE1_LEN do not need - * to be the same size." - */ - - /* - * Determine the maximum GPE number for this machine. - * - * Note: both GPE0 and GPE1 are optional, and either can exist without - * the other. - * - * If EITHER the register length OR the block address are zero, then that - * particular block is not supported. - */ - if (AcpiGbl_FADT.Gpe0BlockLength && - AcpiGbl_FADT.XGpe0Block.Address) - { - /* GPE block 0 exists (has both length and address > 0) */ - - RegisterCount0 = (UINT16) (AcpiGbl_FADT.Gpe0BlockLength / 2); - - GpeNumberMax = (RegisterCount0 * ACPI_GPE_REGISTER_WIDTH) - 1; - - /* Install GPE Block 0 */ - - Status = AcpiEvCreateGpeBlock (AcpiGbl_FadtGpeDevice, - &AcpiGbl_FADT.XGpe0Block, RegisterCount0, 0, - AcpiGbl_FADT.SciInterrupt, &AcpiGbl_GpeFadtBlocks[0]); - - if (ACPI_FAILURE (Status)) - { - ACPI_EXCEPTION ((AE_INFO, Status, - "Could not create GPE Block 0")); - } - } - - if (AcpiGbl_FADT.Gpe1BlockLength && - AcpiGbl_FADT.XGpe1Block.Address) - { - /* GPE block 1 exists (has both length and address > 0) */ - - RegisterCount1 = (UINT16) (AcpiGbl_FADT.Gpe1BlockLength / 2); - - /* Check for GPE0/GPE1 overlap (if both banks exist) */ - - if ((RegisterCount0) && - (GpeNumberMax >= AcpiGbl_FADT.Gpe1Base)) - { - ACPI_ERROR ((AE_INFO, - "GPE0 block (GPE 0 to %u) overlaps the GPE1 block " - "(GPE %u to %u) - Ignoring GPE1", - GpeNumberMax, AcpiGbl_FADT.Gpe1Base, - AcpiGbl_FADT.Gpe1Base + - ((RegisterCount1 * ACPI_GPE_REGISTER_WIDTH) - 1))); - - /* Ignore GPE1 block by setting the register count to zero */ - - RegisterCount1 = 0; - } - else - { - /* Install GPE Block 1 */ - - Status = AcpiEvCreateGpeBlock (AcpiGbl_FadtGpeDevice, - &AcpiGbl_FADT.XGpe1Block, RegisterCount1, - AcpiGbl_FADT.Gpe1Base, - AcpiGbl_FADT.SciInterrupt, &AcpiGbl_GpeFadtBlocks[1]); - - if (ACPI_FAILURE (Status)) - { - ACPI_EXCEPTION ((AE_INFO, Status, - "Could not create GPE Block 1")); - } - - /* - * GPE0 and GPE1 do not have to be contiguous in the GPE number - * space. However, GPE0 always starts at GPE number zero. - */ - GpeNumberMax = AcpiGbl_FADT.Gpe1Base + - ((RegisterCount1 * ACPI_GPE_REGISTER_WIDTH) - 1); - } - } - - /* Exit if there are no GPE registers */ - - if ((RegisterCount0 + RegisterCount1) == 0) + if (GpeEnabledCount || WakeGpeCount) { - /* GPEs are not required by ACPI, this is OK */ - ACPI_DEBUG_PRINT ((ACPI_DB_INIT, - "There are no GPE blocks defined in the FADT\n")); - Status = AE_OK; - goto Cleanup; + "Enabled %u Runtime GPEs, added %u Wake GPEs in this block\n", + GpeEnabledCount, WakeGpeCount)); } - /* Check for Max GPE number out-of-range */ - - if (GpeNumberMax > ACPI_GPE_MAX) - { - ACPI_ERROR ((AE_INFO, - "Maximum GPE number from FADT is too large: 0x%X", - GpeNumberMax)); - Status = AE_BAD_VALUE; - goto Cleanup; - } - -Cleanup: - (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); return_ACPI_STATUS (AE_OK); } - |