utaddress.c File Reference

#include "acpi.h"
#include "accommon.h"
#include "acnamesp.h"

Include dependency graph for utaddress.c:

Go to the source code of this file.

Macros
#define	_COMPONENT   ACPI_UTILITIES

Functions
ACPI_STATUS	AcpiUtAddAddressRange (ACPI_ADR_SPACE_TYPE SpaceId, ACPI_PHYSICAL_ADDRESS Address, UINT32 Length, ACPI_NAMESPACE_NODE *RegionNode)
void	AcpiUtRemoveAddressRange (ACPI_ADR_SPACE_TYPE SpaceId, ACPI_NAMESPACE_NODE *RegionNode)
UINT32	AcpiUtCheckAddressRange (ACPI_ADR_SPACE_TYPE SpaceId, ACPI_PHYSICAL_ADDRESS Address, UINT32 Length, BOOLEAN Warn)
void	AcpiUtDeleteAddressLists (void)

Macro Definition Documentation

_COMPONENT

#define _COMPONENT   ACPI_UTILITIES

Definition at line 49 of file utaddress.c.

Function Documentation

AcpiUtAddAddressRange()

ACPI_STATUS AcpiUtAddAddressRange	(	ACPI_ADR_SPACE_TYPE	SpaceId,
		ACPI_PHYSICAL_ADDRESS	Address,
		UINT32	Length,
		ACPI_NAMESPACE_NODE *	RegionNode
	)

Definition at line 78 of file utaddress.c.

{
    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);
}

Referenced by AcpiDsEvalRegionOperands(), and AcpiDsGetRegionArguments().

AcpiUtCheckAddressRange()

UINT32 AcpiUtCheckAddressRange	(	ACPI_ADR_SPACE_TYPE	SpaceId,
		ACPI_PHYSICAL_ADDRESS	Address,
		UINT32	Length,
		BOOLEAN	Warn
	)

Definition at line 211 of file utaddress.c.

{
    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);
}

Referenced by AcpiCheckAddressRange().

AcpiUtDeleteAddressLists()

void AcpiUtDeleteAddressLists

(

void

)

Definition at line 292 of file utaddress.c.

{
    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;
    }
}

Referenced by AcpiUtTerminate().

AcpiUtRemoveAddressRange()

void AcpiUtRemoveAddressRange	(	ACPI_ADR_SPACE_TYPE	SpaceId,
		ACPI_NAMESPACE_NODE *	RegionNode
	)

Definition at line 139 of file utaddress.c.

{
    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;
}

Referenced by AcpiNsDetachObject(), and AcpiUtDeleteInternalObj().