566 lines
17 KiB
C
566 lines
17 KiB
C
|
|
/******************************************************************************
|
|
*
|
|
* Module Name: exregion - ACPI default OpRegion (address space) handlers
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* 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 __EXREGION_C__
|
|
|
|
#include "acpi.h"
|
|
#include "accommon.h"
|
|
#include "acinterp.h"
|
|
|
|
|
|
#define _COMPONENT ACPI_EXECUTER
|
|
ACPI_MODULE_NAME ("exregion")
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExSystemMemorySpaceHandler
|
|
*
|
|
* PARAMETERS: Function - Read or Write operation
|
|
* Address - Where in the space to read or write
|
|
* BitWidth - Field width in bits (8, 16, or 32)
|
|
* Value - Pointer to in or out value
|
|
* HandlerContext - Pointer to Handler's context
|
|
* RegionContext - Pointer to context specific to the
|
|
* accessed region
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Handler for the System Memory address space (Op Region)
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExSystemMemorySpaceHandler (
|
|
UINT32 Function,
|
|
ACPI_PHYSICAL_ADDRESS Address,
|
|
UINT32 BitWidth,
|
|
UINT64 *Value,
|
|
void *HandlerContext,
|
|
void *RegionContext)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
void *LogicalAddrPtr = NULL;
|
|
ACPI_MEM_SPACE_CONTEXT *MemInfo = RegionContext;
|
|
UINT32 Length;
|
|
ACPI_SIZE MapLength;
|
|
ACPI_SIZE PageBoundaryMapLength;
|
|
#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
|
|
UINT32 Remainder;
|
|
#endif
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (ExSystemMemorySpaceHandler);
|
|
|
|
|
|
/* Validate and translate the bit width */
|
|
|
|
switch (BitWidth)
|
|
{
|
|
case 8:
|
|
Length = 1;
|
|
break;
|
|
|
|
case 16:
|
|
Length = 2;
|
|
break;
|
|
|
|
case 32:
|
|
Length = 4;
|
|
break;
|
|
|
|
case 64:
|
|
Length = 8;
|
|
break;
|
|
|
|
default:
|
|
ACPI_ERROR ((AE_INFO, "Invalid SystemMemory width %u",
|
|
BitWidth));
|
|
return_ACPI_STATUS (AE_AML_OPERAND_VALUE);
|
|
}
|
|
|
|
#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
|
|
/*
|
|
* Hardware does not support non-aligned data transfers, we must verify
|
|
* the request.
|
|
*/
|
|
(void) AcpiUtShortDivide ((UINT64) Address, Length, NULL, &Remainder);
|
|
if (Remainder != 0)
|
|
{
|
|
return_ACPI_STATUS (AE_AML_ALIGNMENT);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Does the request fit into the cached memory mapping?
|
|
* Is 1) Address below the current mapping? OR
|
|
* 2) Address beyond the current mapping?
|
|
*/
|
|
if ((Address < MemInfo->MappedPhysicalAddress) ||
|
|
(((UINT64) Address + Length) >
|
|
((UINT64)
|
|
MemInfo->MappedPhysicalAddress + MemInfo->MappedLength)))
|
|
{
|
|
/*
|
|
* The request cannot be resolved by the current memory mapping;
|
|
* Delete the existing mapping and create a new one.
|
|
*/
|
|
if (MemInfo->MappedLength)
|
|
{
|
|
/* Valid mapping, delete it */
|
|
|
|
AcpiOsUnmapMemory (MemInfo->MappedLogicalAddress,
|
|
MemInfo->MappedLength);
|
|
}
|
|
|
|
/*
|
|
* October 2009: Attempt to map from the requested address to the
|
|
* end of the region. However, we will never map more than one
|
|
* page, nor will we cross a page boundary.
|
|
*/
|
|
MapLength = (ACPI_SIZE)
|
|
((MemInfo->Address + MemInfo->Length) - Address);
|
|
|
|
/*
|
|
* If mapping the entire remaining portion of the region will cross
|
|
* a page boundary, just map up to the page boundary, do not cross.
|
|
* On some systems, crossing a page boundary while mapping regions
|
|
* can cause warnings if the pages have different attributes
|
|
* due to resource management.
|
|
*
|
|
* This has the added benefit of constraining a single mapping to
|
|
* one page, which is similar to the original code that used a 4k
|
|
* maximum window.
|
|
*/
|
|
PageBoundaryMapLength =
|
|
ACPI_ROUND_UP (Address, ACPI_DEFAULT_PAGE_SIZE) - Address;
|
|
if (PageBoundaryMapLength == 0)
|
|
{
|
|
PageBoundaryMapLength = ACPI_DEFAULT_PAGE_SIZE;
|
|
}
|
|
|
|
if (MapLength > PageBoundaryMapLength)
|
|
{
|
|
MapLength = PageBoundaryMapLength;
|
|
}
|
|
|
|
/* Create a new mapping starting at the address given */
|
|
|
|
MemInfo->MappedLogicalAddress = AcpiOsMapMemory (
|
|
(ACPI_PHYSICAL_ADDRESS) Address, MapLength);
|
|
if (!MemInfo->MappedLogicalAddress)
|
|
{
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Could not map memory at 0x%8.8X%8.8X, size %u",
|
|
ACPI_FORMAT_NATIVE_UINT (Address), (UINT32) MapLength));
|
|
MemInfo->MappedLength = 0;
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Save the physical address and mapping size */
|
|
|
|
MemInfo->MappedPhysicalAddress = Address;
|
|
MemInfo->MappedLength = MapLength;
|
|
}
|
|
|
|
/*
|
|
* Generate a logical pointer corresponding to the address we want to
|
|
* access
|
|
*/
|
|
LogicalAddrPtr = MemInfo->MappedLogicalAddress +
|
|
((UINT64) Address - (UINT64) MemInfo->MappedPhysicalAddress);
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
|
"System-Memory (width %u) R/W %u Address=%8.8X%8.8X\n",
|
|
BitWidth, Function, ACPI_FORMAT_NATIVE_UINT (Address)));
|
|
|
|
/*
|
|
* Perform the memory read or write
|
|
*
|
|
* Note: For machines that do not support non-aligned transfers, the target
|
|
* address was checked for alignment above. We do not attempt to break the
|
|
* transfer up into smaller (byte-size) chunks because the AML specifically
|
|
* asked for a transfer width that the hardware may require.
|
|
*/
|
|
switch (Function)
|
|
{
|
|
case ACPI_READ:
|
|
|
|
*Value = 0;
|
|
switch (BitWidth)
|
|
{
|
|
case 8:
|
|
*Value = (UINT64) ACPI_GET8 (LogicalAddrPtr);
|
|
break;
|
|
|
|
case 16:
|
|
*Value = (UINT64) ACPI_GET16 (LogicalAddrPtr);
|
|
break;
|
|
|
|
case 32:
|
|
*Value = (UINT64) ACPI_GET32 (LogicalAddrPtr);
|
|
break;
|
|
|
|
case 64:
|
|
*Value = (UINT64) ACPI_GET64 (LogicalAddrPtr);
|
|
break;
|
|
|
|
default:
|
|
/* BitWidth was already validated */
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case ACPI_WRITE:
|
|
|
|
switch (BitWidth)
|
|
{
|
|
case 8:
|
|
ACPI_SET8 (LogicalAddrPtr) = (UINT8) *Value;
|
|
break;
|
|
|
|
case 16:
|
|
ACPI_SET16 (LogicalAddrPtr) = (UINT16) *Value;
|
|
break;
|
|
|
|
case 32:
|
|
ACPI_SET32 ( LogicalAddrPtr) = (UINT32) *Value;
|
|
break;
|
|
|
|
case 64:
|
|
ACPI_SET64 (LogicalAddrPtr) = (UINT64) *Value;
|
|
break;
|
|
|
|
default:
|
|
/* BitWidth was already validated */
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
Status = AE_BAD_PARAMETER;
|
|
break;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExSystemIoSpaceHandler
|
|
*
|
|
* PARAMETERS: Function - Read or Write operation
|
|
* Address - Where in the space to read or write
|
|
* BitWidth - Field width in bits (8, 16, or 32)
|
|
* Value - Pointer to in or out value
|
|
* HandlerContext - Pointer to Handler's context
|
|
* RegionContext - Pointer to context specific to the
|
|
* accessed region
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Handler for the System IO address space (Op Region)
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExSystemIoSpaceHandler (
|
|
UINT32 Function,
|
|
ACPI_PHYSICAL_ADDRESS Address,
|
|
UINT32 BitWidth,
|
|
UINT64 *Value,
|
|
void *HandlerContext,
|
|
void *RegionContext)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
UINT32 Value32;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (ExSystemIoSpaceHandler);
|
|
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
|
"System-IO (width %u) R/W %u Address=%8.8X%8.8X\n",
|
|
BitWidth, Function, ACPI_FORMAT_NATIVE_UINT (Address)));
|
|
|
|
/* Decode the function parameter */
|
|
|
|
switch (Function)
|
|
{
|
|
case ACPI_READ:
|
|
|
|
Status = AcpiHwReadPort ((ACPI_IO_ADDRESS) Address,
|
|
&Value32, BitWidth);
|
|
*Value = Value32;
|
|
break;
|
|
|
|
case ACPI_WRITE:
|
|
|
|
Status = AcpiHwWritePort ((ACPI_IO_ADDRESS) Address,
|
|
(UINT32) *Value, BitWidth);
|
|
break;
|
|
|
|
default:
|
|
Status = AE_BAD_PARAMETER;
|
|
break;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExPciConfigSpaceHandler
|
|
*
|
|
* PARAMETERS: Function - Read or Write operation
|
|
* Address - Where in the space to read or write
|
|
* BitWidth - Field width in bits (8, 16, or 32)
|
|
* Value - Pointer to in or out value
|
|
* HandlerContext - Pointer to Handler's context
|
|
* RegionContext - Pointer to context specific to the
|
|
* accessed region
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Handler for the PCI Config address space (Op Region)
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExPciConfigSpaceHandler (
|
|
UINT32 Function,
|
|
ACPI_PHYSICAL_ADDRESS Address,
|
|
UINT32 BitWidth,
|
|
UINT64 *Value,
|
|
void *HandlerContext,
|
|
void *RegionContext)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
ACPI_PCI_ID *PciId;
|
|
UINT16 PciRegister;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (ExPciConfigSpaceHandler);
|
|
|
|
|
|
/*
|
|
* The arguments to AcpiOs(Read|Write)PciConfiguration are:
|
|
*
|
|
* PciSegment is the PCI bus segment range 0-31
|
|
* PciBus is the PCI bus number range 0-255
|
|
* PciDevice is the PCI device number range 0-31
|
|
* PciFunction is the PCI device function number
|
|
* PciRegister is the Config space register range 0-255 bytes
|
|
*
|
|
* Value - input value for write, output address for read
|
|
*
|
|
*/
|
|
PciId = (ACPI_PCI_ID *) RegionContext;
|
|
PciRegister = (UINT16) (UINT32) Address;
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
|
"Pci-Config %u (%u) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n",
|
|
Function, BitWidth, PciId->Segment, PciId->Bus, PciId->Device,
|
|
PciId->Function, PciRegister));
|
|
|
|
switch (Function)
|
|
{
|
|
case ACPI_READ:
|
|
|
|
*Value = 0;
|
|
Status = AcpiOsReadPciConfiguration (PciId, PciRegister,
|
|
Value, BitWidth);
|
|
break;
|
|
|
|
case ACPI_WRITE:
|
|
|
|
Status = AcpiOsWritePciConfiguration (PciId, PciRegister,
|
|
*Value, BitWidth);
|
|
break;
|
|
|
|
default:
|
|
|
|
Status = AE_BAD_PARAMETER;
|
|
break;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExCmosSpaceHandler
|
|
*
|
|
* PARAMETERS: Function - Read or Write operation
|
|
* Address - Where in the space to read or write
|
|
* BitWidth - Field width in bits (8, 16, or 32)
|
|
* Value - Pointer to in or out value
|
|
* HandlerContext - Pointer to Handler's context
|
|
* RegionContext - Pointer to context specific to the
|
|
* accessed region
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Handler for the CMOS address space (Op Region)
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExCmosSpaceHandler (
|
|
UINT32 Function,
|
|
ACPI_PHYSICAL_ADDRESS Address,
|
|
UINT32 BitWidth,
|
|
UINT64 *Value,
|
|
void *HandlerContext,
|
|
void *RegionContext)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (ExCmosSpaceHandler);
|
|
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExPciBarSpaceHandler
|
|
*
|
|
* PARAMETERS: Function - Read or Write operation
|
|
* Address - Where in the space to read or write
|
|
* BitWidth - Field width in bits (8, 16, or 32)
|
|
* Value - Pointer to in or out value
|
|
* HandlerContext - Pointer to Handler's context
|
|
* RegionContext - Pointer to context specific to the
|
|
* accessed region
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Handler for the PCI BarTarget address space (Op Region)
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExPciBarSpaceHandler (
|
|
UINT32 Function,
|
|
ACPI_PHYSICAL_ADDRESS Address,
|
|
UINT32 BitWidth,
|
|
UINT64 *Value,
|
|
void *HandlerContext,
|
|
void *RegionContext)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (ExPciBarSpaceHandler);
|
|
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExDataTableSpaceHandler
|
|
*
|
|
* PARAMETERS: Function - Read or Write operation
|
|
* Address - Where in the space to read or write
|
|
* BitWidth - Field width in bits (8, 16, or 32)
|
|
* Value - Pointer to in or out value
|
|
* HandlerContext - Pointer to Handler's context
|
|
* RegionContext - Pointer to context specific to the
|
|
* accessed region
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Handler for the Data Table address space (Op Region)
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExDataTableSpaceHandler (
|
|
UINT32 Function,
|
|
ACPI_PHYSICAL_ADDRESS Address,
|
|
UINT32 BitWidth,
|
|
UINT64 *Value,
|
|
void *HandlerContext,
|
|
void *RegionContext)
|
|
{
|
|
ACPI_FUNCTION_TRACE (ExDataTableSpaceHandler);
|
|
|
|
|
|
/*
|
|
* Perform the memory read or write. The BitWidth was already
|
|
* validated.
|
|
*/
|
|
switch (Function)
|
|
{
|
|
case ACPI_READ:
|
|
|
|
ACPI_MEMCPY (ACPI_CAST_PTR (char, Value), ACPI_PHYSADDR_TO_PTR (Address),
|
|
ACPI_DIV_8 (BitWidth));
|
|
break;
|
|
|
|
case ACPI_WRITE:
|
|
|
|
ACPI_MEMCPY (ACPI_PHYSADDR_TO_PTR (Address), ACPI_CAST_PTR (char, Value),
|
|
ACPI_DIV_8 (BitWidth));
|
|
break;
|
|
|
|
default:
|
|
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|