summaryrefslogtreecommitdiffstats
path: root/sys/contrib/dev/acpica/components/events/evrgnini.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/contrib/dev/acpica/components/events/evrgnini.c')
-rw-r--r--sys/contrib/dev/acpica/components/events/evrgnini.c732
1 files changed, 732 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/components/events/evrgnini.c b/sys/contrib/dev/acpica/components/events/evrgnini.c
new file mode 100644
index 0000000..9fb7769
--- /dev/null
+++ b/sys/contrib/dev/acpica/components/events/evrgnini.c
@@ -0,0 +1,732 @@
+/******************************************************************************
+ *
+ * Module Name: evrgnini- ACPI AddressSpace (OpRegion) init
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+
+#define __EVRGNINI_C__
+
+#include <contrib/dev/acpica/include/acpi.h>
+#include <contrib/dev/acpica/include/accommon.h>
+#include <contrib/dev/acpica/include/acevents.h>
+#include <contrib/dev/acpica/include/acnamesp.h>
+
+#define _COMPONENT ACPI_EVENTS
+ ACPI_MODULE_NAME ("evrgnini")
+
+/* Local prototypes */
+
+static BOOLEAN
+AcpiEvIsPciRootBridge (
+ ACPI_NAMESPACE_NODE *Node);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiEvSystemMemoryRegionSetup
+ *
+ * PARAMETERS: Handle - Region we are interested in
+ * Function - Start or stop
+ * HandlerContext - Address space handler context
+ * RegionContext - Region specific context
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Setup a SystemMemory operation region
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiEvSystemMemoryRegionSetup (
+ ACPI_HANDLE Handle,
+ UINT32 Function,
+ void *HandlerContext,
+ void **RegionContext)
+{
+ ACPI_OPERAND_OBJECT *RegionDesc = (ACPI_OPERAND_OBJECT *) Handle;
+ ACPI_MEM_SPACE_CONTEXT *LocalRegionContext;
+
+
+ ACPI_FUNCTION_TRACE (EvSystemMemoryRegionSetup);
+
+
+ if (Function == ACPI_REGION_DEACTIVATE)
+ {
+ if (*RegionContext)
+ {
+ LocalRegionContext = (ACPI_MEM_SPACE_CONTEXT *) *RegionContext;
+
+ /* Delete a cached mapping if present */
+
+ if (LocalRegionContext->MappedLength)
+ {
+ AcpiOsUnmapMemory (LocalRegionContext->MappedLogicalAddress,
+ LocalRegionContext->MappedLength);
+ }
+ ACPI_FREE (LocalRegionContext);
+ *RegionContext = NULL;
+ }
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ /* Create a new context */
+
+ LocalRegionContext = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_MEM_SPACE_CONTEXT));
+ if (!(LocalRegionContext))
+ {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /* Save the region length and address for use in the handler */
+
+ LocalRegionContext->Length = RegionDesc->Region.Length;
+ LocalRegionContext->Address = RegionDesc->Region.Address;
+
+ *RegionContext = LocalRegionContext;
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiEvIoSpaceRegionSetup
+ *
+ * PARAMETERS: Handle - Region we are interested in
+ * Function - Start or stop
+ * HandlerContext - Address space handler context
+ * RegionContext - Region specific context
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Setup a IO operation region
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiEvIoSpaceRegionSetup (
+ ACPI_HANDLE Handle,
+ UINT32 Function,
+ void *HandlerContext,
+ void **RegionContext)
+{
+ ACPI_FUNCTION_TRACE (EvIoSpaceRegionSetup);
+
+
+ if (Function == ACPI_REGION_DEACTIVATE)
+ {
+ *RegionContext = NULL;
+ }
+ else
+ {
+ *RegionContext = HandlerContext;
+ }
+
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiEvPciConfigRegionSetup
+ *
+ * PARAMETERS: Handle - Region we are interested in
+ * Function - Start or stop
+ * HandlerContext - Address space handler context
+ * RegionContext - Region specific context
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Setup a PCI_Config operation region
+ *
+ * MUTEX: Assumes namespace is not locked
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiEvPciConfigRegionSetup (
+ ACPI_HANDLE Handle,
+ UINT32 Function,
+ void *HandlerContext,
+ void **RegionContext)
+{
+ ACPI_STATUS Status = AE_OK;
+ UINT64 PciValue;
+ ACPI_PCI_ID *PciId = *RegionContext;
+ ACPI_OPERAND_OBJECT *HandlerObj;
+ ACPI_NAMESPACE_NODE *ParentNode;
+ ACPI_NAMESPACE_NODE *PciRootNode;
+ ACPI_NAMESPACE_NODE *PciDeviceNode;
+ ACPI_OPERAND_OBJECT *RegionObj = (ACPI_OPERAND_OBJECT *) Handle;
+
+
+ ACPI_FUNCTION_TRACE (EvPciConfigRegionSetup);
+
+
+ HandlerObj = RegionObj->Region.Handler;
+ if (!HandlerObj)
+ {
+ /*
+ * No installed handler. This shouldn't happen because the dispatch
+ * routine checks before we get here, but we check again just in case.
+ */
+ ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
+ "Attempting to init a region %p, with no handler\n", RegionObj));
+ return_ACPI_STATUS (AE_NOT_EXIST);
+ }
+
+ *RegionContext = NULL;
+ if (Function == ACPI_REGION_DEACTIVATE)
+ {
+ if (PciId)
+ {
+ ACPI_FREE (PciId);
+ }
+ return_ACPI_STATUS (Status);
+ }
+
+ ParentNode = RegionObj->Region.Node->Parent;
+
+ /*
+ * Get the _SEG and _BBN values from the device upon which the handler
+ * is installed.
+ *
+ * We need to get the _SEG and _BBN objects relative to the PCI BUS device.
+ * This is the device the handler has been registered to handle.
+ */
+
+ /*
+ * If the AddressSpace.Node is still pointing to the root, we need
+ * to scan upward for a PCI Root bridge and re-associate the OpRegion
+ * handlers with that device.
+ */
+ if (HandlerObj->AddressSpace.Node == AcpiGbl_RootNode)
+ {
+ /* Start search from the parent object */
+
+ PciRootNode = ParentNode;
+ while (PciRootNode != AcpiGbl_RootNode)
+ {
+ /* Get the _HID/_CID in order to detect a RootBridge */
+
+ if (AcpiEvIsPciRootBridge (PciRootNode))
+ {
+ /* Install a handler for this PCI root bridge */
+
+ Status = AcpiInstallAddressSpaceHandler (
+ (ACPI_HANDLE) PciRootNode,
+ ACPI_ADR_SPACE_PCI_CONFIG,
+ ACPI_DEFAULT_HANDLER, NULL, NULL);
+ if (ACPI_FAILURE (Status))
+ {
+ if (Status == AE_SAME_HANDLER)
+ {
+ /*
+ * It is OK if the handler is already installed on the
+ * root bridge. Still need to return a context object
+ * for the new PCI_Config operation region, however.
+ */
+ Status = AE_OK;
+ }
+ else
+ {
+ ACPI_EXCEPTION ((AE_INFO, Status,
+ "Could not install PciConfig handler "
+ "for Root Bridge %4.4s",
+ AcpiUtGetNodeName (PciRootNode)));
+ }
+ }
+ break;
+ }
+
+ PciRootNode = PciRootNode->Parent;
+ }
+
+ /* PCI root bridge not found, use namespace root node */
+ }
+ else
+ {
+ PciRootNode = HandlerObj->AddressSpace.Node;
+ }
+
+ /*
+ * If this region is now initialized, we are done.
+ * (InstallAddressSpaceHandler could have initialized it)
+ */
+ if (RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE)
+ {
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ /* Region is still not initialized. Create a new context */
+
+ PciId = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_PCI_ID));
+ if (!PciId)
+ {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /*
+ * For PCI_Config space access, we need the segment, bus, device and
+ * function numbers. Acquire them here.
+ *
+ * Find the parent device object. (This allows the operation region to be
+ * within a subscope under the device, such as a control method.)
+ */
+ PciDeviceNode = RegionObj->Region.Node;
+ while (PciDeviceNode && (PciDeviceNode->Type != ACPI_TYPE_DEVICE))
+ {
+ PciDeviceNode = PciDeviceNode->Parent;
+ }
+
+ if (!PciDeviceNode)
+ {
+ ACPI_FREE (PciId);
+ return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
+ }
+
+ /*
+ * Get the PCI device and function numbers from the _ADR object
+ * contained in the parent's scope.
+ */
+ Status = AcpiUtEvaluateNumericObject (METHOD_NAME__ADR,
+ PciDeviceNode, &PciValue);
+
+ /*
+ * The default is zero, and since the allocation above zeroed the data,
+ * just do nothing on failure.
+ */
+ if (ACPI_SUCCESS (Status))
+ {
+ PciId->Device = ACPI_HIWORD (ACPI_LODWORD (PciValue));
+ PciId->Function = ACPI_LOWORD (ACPI_LODWORD (PciValue));
+ }
+
+ /* The PCI segment number comes from the _SEG method */
+
+ Status = AcpiUtEvaluateNumericObject (METHOD_NAME__SEG,
+ PciRootNode, &PciValue);
+ if (ACPI_SUCCESS (Status))
+ {
+ PciId->Segment = ACPI_LOWORD (PciValue);
+ }
+
+ /* The PCI bus number comes from the _BBN method */
+
+ Status = AcpiUtEvaluateNumericObject (METHOD_NAME__BBN,
+ PciRootNode, &PciValue);
+ if (ACPI_SUCCESS (Status))
+ {
+ PciId->Bus = ACPI_LOWORD (PciValue);
+ }
+
+ /* Complete/update the PCI ID for this device */
+
+ Status = AcpiHwDerivePciId (PciId, PciRootNode, RegionObj->Region.Node);
+ if (ACPI_FAILURE (Status))
+ {
+ ACPI_FREE (PciId);
+ return_ACPI_STATUS (Status);
+ }
+
+ *RegionContext = PciId;
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiEvIsPciRootBridge
+ *
+ * PARAMETERS: Node - Device node being examined
+ *
+ * RETURN: TRUE if device is a PCI/PCI-Express Root Bridge
+ *
+ * DESCRIPTION: Determine if the input device represents a PCI Root Bridge by
+ * examining the _HID and _CID for the device.
+ *
+ ******************************************************************************/
+
+static BOOLEAN
+AcpiEvIsPciRootBridge (
+ ACPI_NAMESPACE_NODE *Node)
+{
+ ACPI_STATUS Status;
+ ACPI_DEVICE_ID *Hid;
+ ACPI_DEVICE_ID_LIST *Cid;
+ UINT32 i;
+ BOOLEAN Match;
+
+
+ /* Get the _HID and check for a PCI Root Bridge */
+
+ Status = AcpiUtExecute_HID (Node, &Hid);
+ if (ACPI_FAILURE (Status))
+ {
+ return (FALSE);
+ }
+
+ Match = AcpiUtIsPciRootBridge (Hid->String);
+ ACPI_FREE (Hid);
+
+ if (Match)
+ {
+ return (TRUE);
+ }
+
+ /* The _HID did not match. Get the _CID and check for a PCI Root Bridge */
+
+ Status = AcpiUtExecute_CID (Node, &Cid);
+ if (ACPI_FAILURE (Status))
+ {
+ return (FALSE);
+ }
+
+ /* Check all _CIDs in the returned list */
+
+ for (i = 0; i < Cid->Count; i++)
+ {
+ if (AcpiUtIsPciRootBridge (Cid->Ids[i].String))
+ {
+ ACPI_FREE (Cid);
+ return (TRUE);
+ }
+ }
+
+ ACPI_FREE (Cid);
+ return (FALSE);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiEvPciBarRegionSetup
+ *
+ * PARAMETERS: Handle - Region we are interested in
+ * Function - Start or stop
+ * HandlerContext - Address space handler context
+ * RegionContext - Region specific context
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Setup a PciBAR operation region
+ *
+ * MUTEX: Assumes namespace is not locked
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiEvPciBarRegionSetup (
+ ACPI_HANDLE Handle,
+ UINT32 Function,
+ void *HandlerContext,
+ void **RegionContext)
+{
+ ACPI_FUNCTION_TRACE (EvPciBarRegionSetup);
+
+
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiEvCmosRegionSetup
+ *
+ * PARAMETERS: Handle - Region we are interested in
+ * Function - Start or stop
+ * HandlerContext - Address space handler context
+ * RegionContext - Region specific context
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Setup a CMOS operation region
+ *
+ * MUTEX: Assumes namespace is not locked
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiEvCmosRegionSetup (
+ ACPI_HANDLE Handle,
+ UINT32 Function,
+ void *HandlerContext,
+ void **RegionContext)
+{
+ ACPI_FUNCTION_TRACE (EvCmosRegionSetup);
+
+
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiEvDefaultRegionSetup
+ *
+ * PARAMETERS: Handle - Region we are interested in
+ * Function - Start or stop
+ * HandlerContext - Address space handler context
+ * RegionContext - Region specific context
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Default region initialization
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiEvDefaultRegionSetup (
+ ACPI_HANDLE Handle,
+ UINT32 Function,
+ void *HandlerContext,
+ void **RegionContext)
+{
+ ACPI_FUNCTION_TRACE (EvDefaultRegionSetup);
+
+
+ if (Function == ACPI_REGION_DEACTIVATE)
+ {
+ *RegionContext = NULL;
+ }
+ else
+ {
+ *RegionContext = HandlerContext;
+ }
+
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiEvInitializeRegion
+ *
+ * PARAMETERS: RegionObj - Region we are initializing
+ * AcpiNsLocked - Is namespace locked?
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initializes the region, finds any _REG methods and saves them
+ * for execution at a later time
+ *
+ * Get the appropriate address space handler for a newly
+ * created region.
+ *
+ * This also performs address space specific initialization. For
+ * example, PCI regions must have an _ADR object that contains
+ * a PCI address in the scope of the definition. This address is
+ * required to perform an access to PCI config space.
+ *
+ * MUTEX: Interpreter should be unlocked, because we may run the _REG
+ * method for this region.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiEvInitializeRegion (
+ ACPI_OPERAND_OBJECT *RegionObj,
+ BOOLEAN AcpiNsLocked)
+{
+ ACPI_OPERAND_OBJECT *HandlerObj;
+ ACPI_OPERAND_OBJECT *ObjDesc;
+ ACPI_ADR_SPACE_TYPE SpaceId;
+ ACPI_NAMESPACE_NODE *Node;
+ ACPI_STATUS Status;
+ ACPI_NAMESPACE_NODE *MethodNode;
+ ACPI_NAME *RegNamePtr = (ACPI_NAME *) METHOD_NAME__REG;
+ ACPI_OPERAND_OBJECT *RegionObj2;
+
+
+ ACPI_FUNCTION_TRACE_U32 (EvInitializeRegion, AcpiNsLocked);
+
+
+ if (!RegionObj)
+ {
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
+
+ if (RegionObj->Common.Flags & AOPOBJ_OBJECT_INITIALIZED)
+ {
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ RegionObj2 = AcpiNsGetSecondaryObject (RegionObj);
+ if (!RegionObj2)
+ {
+ return_ACPI_STATUS (AE_NOT_EXIST);
+ }
+
+ Node = RegionObj->Region.Node->Parent;
+ SpaceId = RegionObj->Region.SpaceId;
+
+ /* Setup defaults */
+
+ RegionObj->Region.Handler = NULL;
+ RegionObj2->Extra.Method_REG = NULL;
+ RegionObj->Common.Flags &= ~(AOPOBJ_SETUP_COMPLETE);
+ RegionObj->Common.Flags |= AOPOBJ_OBJECT_INITIALIZED;
+
+ /* Find any "_REG" method associated with this region definition */
+
+ Status = AcpiNsSearchOneScope (
+ *RegNamePtr, Node, ACPI_TYPE_METHOD, &MethodNode);
+ if (ACPI_SUCCESS (Status))
+ {
+ /*
+ * The _REG method is optional and there can be only one per region
+ * definition. This will be executed when the handler is attached
+ * or removed
+ */
+ RegionObj2->Extra.Method_REG = MethodNode;
+ }
+
+ /*
+ * The following loop depends upon the root Node having no parent
+ * ie: AcpiGbl_RootNode->ParentEntry being set to NULL
+ */
+ while (Node)
+ {
+ /* Check to see if a handler exists */
+
+ HandlerObj = NULL;
+ ObjDesc = AcpiNsGetAttachedObject (Node);
+ if (ObjDesc)
+ {
+ /* Can only be a handler if the object exists */
+
+ switch (Node->Type)
+ {
+ case ACPI_TYPE_DEVICE:
+
+ HandlerObj = ObjDesc->Device.Handler;
+ break;
+
+ case ACPI_TYPE_PROCESSOR:
+
+ HandlerObj = ObjDesc->Processor.Handler;
+ break;
+
+ case ACPI_TYPE_THERMAL:
+
+ HandlerObj = ObjDesc->ThermalZone.Handler;
+ break;
+
+ case ACPI_TYPE_METHOD:
+ /*
+ * If we are executing module level code, the original
+ * Node's object was replaced by this Method object and we
+ * saved the handler in the method object.
+ *
+ * See AcpiNsExecModuleCode
+ */
+ if (ObjDesc->Method.InfoFlags & ACPI_METHOD_MODULE_LEVEL)
+ {
+ HandlerObj = ObjDesc->Method.Dispatch.Handler;
+ }
+ break;
+
+ default:
+ /* Ignore other objects */
+ break;
+ }
+
+ while (HandlerObj)
+ {
+ /* Is this handler of the correct type? */
+
+ if (HandlerObj->AddressSpace.SpaceId == SpaceId)
+ {
+ /* Found correct handler */
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
+ "Found handler %p for region %p in obj %p\n",
+ HandlerObj, RegionObj, ObjDesc));
+
+ Status = AcpiEvAttachRegion (HandlerObj, RegionObj,
+ AcpiNsLocked);
+
+ /*
+ * Tell all users that this region is usable by
+ * running the _REG method
+ */
+ if (AcpiNsLocked)
+ {
+ Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+ }
+
+ Status = AcpiEvExecuteRegMethod (RegionObj, ACPI_REG_CONNECT);
+
+ if (AcpiNsLocked)
+ {
+ Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+ }
+
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ /* Try next handler in the list */
+
+ HandlerObj = HandlerObj->AddressSpace.Next;
+ }
+ }
+
+ /* This node does not have the handler we need; Pop up one level */
+
+ Node = Node->Parent;
+ }
+
+ /* If we get here, there is no handler for this region */
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
+ "No handler for RegionType %s(%X) (RegionObj %p)\n",
+ AcpiUtGetRegionName (SpaceId), SpaceId, RegionObj));
+
+ return_ACPI_STATUS (AE_NOT_EXIST);
+}
+
OpenPOWER on IntegriCloud