+++ /dev/null
-/******************************************************************************
- *
- * Module Name: utaddress - OpRegion address range check
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2017, 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.
- */
-
-#include "acpi.h"
-#include "accommon.h"
-#include "acnamesp.h"
-
-
-#define _COMPONENT ACPI_UTILITIES
- ACPI_MODULE_NAME ("utaddress")
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiUtAddAddressRange
- *
- * PARAMETERS: SpaceId - Address space ID
- * Address - OpRegion start address
- * Length - OpRegion length
- * RegionNode - OpRegion namespace node
- *
- * RETURN: Status
- *
- * DESCRIPTION: Add the Operation Region address range to the global list.
- * The only supported Space IDs are Memory and I/O. Called when
- * the OpRegion address/length operands are fully evaluated.
- *
- * MUTEX: Locks the namespace
- *
- * NOTE: Because this interface is only called when an OpRegion argument
- * list is evaluated, there cannot be any duplicate RegionNodes.
- * Duplicate Address/Length values are allowed, however, so that multiple
- * address conflicts can be detected.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiUtAddAddressRange (
- ACPI_ADR_SPACE_TYPE SpaceId,
- ACPI_PHYSICAL_ADDRESS Address,
- UINT32 Length,
- ACPI_NAMESPACE_NODE *RegionNode)
-{
- ACPI_ADDRESS_RANGE *RangeInfo;
-
-
- ACPI_FUNCTION_TRACE (UtAddAddressRange);
-
-
- if ((SpaceId != ACPI_ADR_SPACE_SYSTEM_MEMORY) &&
- (SpaceId != ACPI_ADR_SPACE_SYSTEM_IO))
- {
- return_ACPI_STATUS (AE_OK);
- }
-
- /* Allocate/init a new info block, add it to the appropriate list */
-
- RangeInfo = ACPI_ALLOCATE (sizeof (ACPI_ADDRESS_RANGE));
- if (!RangeInfo)
- {
- return_ACPI_STATUS (AE_NO_MEMORY);
- }
-
- RangeInfo->StartAddress = Address;
- RangeInfo->EndAddress = (Address + Length - 1);
- RangeInfo->RegionNode = RegionNode;
-
- RangeInfo->Next = AcpiGbl_AddressRangeList[SpaceId];
- AcpiGbl_AddressRangeList[SpaceId] = RangeInfo;
-
- ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
- "\nAdded [%4.4s] address range: 0x%8.8X%8.8X-0x%8.8X%8.8X\n",
- AcpiUtGetNodeName (RangeInfo->RegionNode),
- ACPI_FORMAT_UINT64 (Address),
- ACPI_FORMAT_UINT64 (RangeInfo->EndAddress)));
-
- return_ACPI_STATUS (AE_OK);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiUtRemoveAddressRange
- *
- * PARAMETERS: SpaceId - Address space ID
- * RegionNode - OpRegion namespace node
- *
- * RETURN: None
- *
- * DESCRIPTION: Remove the Operation Region from the global list. The only
- * supported Space IDs are Memory and I/O. Called when an
- * OpRegion is deleted.
- *
- * MUTEX: Assumes the namespace is locked
- *
- ******************************************************************************/
-
-void
-AcpiUtRemoveAddressRange (
- ACPI_ADR_SPACE_TYPE SpaceId,
- ACPI_NAMESPACE_NODE *RegionNode)
-{
- ACPI_ADDRESS_RANGE *RangeInfo;
- ACPI_ADDRESS_RANGE *Prev;
-
-
- ACPI_FUNCTION_TRACE (UtRemoveAddressRange);
-
-
- if ((SpaceId != ACPI_ADR_SPACE_SYSTEM_MEMORY) &&
- (SpaceId != ACPI_ADR_SPACE_SYSTEM_IO))
- {
- return_VOID;
- }
-
- /* Get the appropriate list head and check the list */
-
- RangeInfo = Prev = AcpiGbl_AddressRangeList[SpaceId];
- while (RangeInfo)
- {
- if (RangeInfo->RegionNode == RegionNode)
- {
- if (RangeInfo == Prev) /* Found at list head */
- {
- AcpiGbl_AddressRangeList[SpaceId] = RangeInfo->Next;
- }
- else
- {
- Prev->Next = RangeInfo->Next;
- }
-
- ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
- "\nRemoved [%4.4s] address range: 0x%8.8X%8.8X-0x%8.8X%8.8X\n",
- AcpiUtGetNodeName (RangeInfo->RegionNode),
- ACPI_FORMAT_UINT64 (RangeInfo->StartAddress),
- ACPI_FORMAT_UINT64 (RangeInfo->EndAddress)));
-
- ACPI_FREE (RangeInfo);
- return_VOID;
- }
-
- Prev = RangeInfo;
- RangeInfo = RangeInfo->Next;
- }
-
- return_VOID;
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiUtCheckAddressRange
- *
- * PARAMETERS: SpaceId - Address space ID
- * Address - Start address
- * Length - Length of address range
- * Warn - TRUE if warning on overlap desired
- *
- * RETURN: Count of the number of conflicts detected. Zero is always
- * returned for Space IDs other than Memory or I/O.
- *
- * DESCRIPTION: Check if the input address range overlaps any of the
- * ASL operation region address ranges. The only supported
- * Space IDs are Memory and I/O.
- *
- * MUTEX: Assumes the namespace is locked.
- *
- ******************************************************************************/
-
-UINT32
-AcpiUtCheckAddressRange (
- ACPI_ADR_SPACE_TYPE SpaceId,
- ACPI_PHYSICAL_ADDRESS Address,
- UINT32 Length,
- BOOLEAN Warn)
-{
- ACPI_ADDRESS_RANGE *RangeInfo;
- ACPI_PHYSICAL_ADDRESS EndAddress;
- char *Pathname;
- UINT32 OverlapCount = 0;
-
-
- ACPI_FUNCTION_TRACE (UtCheckAddressRange);
-
-
- if ((SpaceId != ACPI_ADR_SPACE_SYSTEM_MEMORY) &&
- (SpaceId != ACPI_ADR_SPACE_SYSTEM_IO))
- {
- return_UINT32 (0);
- }
-
- RangeInfo = AcpiGbl_AddressRangeList[SpaceId];
- EndAddress = Address + Length - 1;
-
- /* Check entire list for all possible conflicts */
-
- while (RangeInfo)
- {
- /*
- * Check if the requested address/length overlaps this
- * address range. There are four cases to consider:
- *
- * 1) Input address/length is contained completely in the
- * address range
- * 2) Input address/length overlaps range at the range start
- * 3) Input address/length overlaps range at the range end
- * 4) Input address/length completely encompasses the range
- */
- if ((Address <= RangeInfo->EndAddress) &&
- (EndAddress >= RangeInfo->StartAddress))
- {
- /* Found an address range overlap */
-
- OverlapCount++;
- if (Warn) /* Optional warning message */
- {
- Pathname = AcpiNsGetNormalizedPathname (RangeInfo->RegionNode, TRUE);
-
- ACPI_WARNING ((AE_INFO,
- "%s range 0x%8.8X%8.8X-0x%8.8X%8.8X conflicts with OpRegion 0x%8.8X%8.8X-0x%8.8X%8.8X (%s)",
- AcpiUtGetRegionName (SpaceId),
- ACPI_FORMAT_UINT64 (Address),
- ACPI_FORMAT_UINT64 (EndAddress),
- ACPI_FORMAT_UINT64 (RangeInfo->StartAddress),
- ACPI_FORMAT_UINT64 (RangeInfo->EndAddress),
- Pathname));
- ACPI_FREE (Pathname);
- }
- }
-
- RangeInfo = RangeInfo->Next;
- }
-
- return_UINT32 (OverlapCount);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiUtDeleteAddressLists
- *
- * PARAMETERS: None
- *
- * RETURN: None
- *
- * DESCRIPTION: Delete all global address range lists (called during
- * subsystem shutdown).
- *
- ******************************************************************************/
-
-void
-AcpiUtDeleteAddressLists (
- void)
-{
- ACPI_ADDRESS_RANGE *Next;
- ACPI_ADDRESS_RANGE *RangeInfo;
- int i;
-
-
- /* Delete all elements in all address range lists */
-
- for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++)
- {
- Next = AcpiGbl_AddressRangeList[i];
-
- while (Next)
- {
- RangeInfo = Next;
- Next = RangeInfo->Next;
- ACPI_FREE (RangeInfo);
- }
-
- AcpiGbl_AddressRangeList[i] = NULL;
- }
-}
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