| 0,0 → 1,637 |
|---|
| |
| /****************************************************************************** |
| * |
| * Module Name: exregion - ACPI default OpRegion (address space) handlers |
| * |
| *****************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * 1. Copyright Notice |
| * |
| * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp. |
| * All rights reserved. |
| * |
| * 2. License |
| * |
| * 2.1. This is your license from Intel Corp. under its intellectual property |
| * rights. You may have additional license terms from the party that provided |
| * you this software, covering your right to use that party's intellectual |
| * property rights. |
| * |
| * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a |
| * copy of the source code appearing in this file ("Covered Code") an |
| * irrevocable, perpetual, worldwide license under Intel's copyrights in the |
| * base code distributed originally by Intel ("Original Intel Code") to copy, |
| * make derivatives, distribute, use and display any portion of the Covered |
| * Code in any form, with the right to sublicense such rights; and |
| * |
| * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent |
| * license (with the right to sublicense), under only those claims of Intel |
| * patents that are infringed by the Original Intel Code, to make, use, sell, |
| * offer to sell, and import the Covered Code and derivative works thereof |
| * solely to the minimum extent necessary to exercise the above copyright |
| * license, and in no event shall the patent license extend to any additions |
| * to or modifications of the Original Intel Code. No other license or right |
| * is granted directly or by implication, estoppel or otherwise; |
| * |
| * The above copyright and patent license is granted only if the following |
| * conditions are met: |
| * |
| * 3. Conditions |
| * |
| * 3.1. Redistribution of Source with Rights to Further Distribute Source. |
| * Redistribution of source code of any substantial portion of the Covered |
| * Code or modification with rights to further distribute source must include |
| * the above Copyright Notice, the above License, this list of Conditions, |
| * and the following Disclaimer and Export Compliance provision. In addition, |
| * Licensee must cause all Covered Code to which Licensee contributes to |
| * contain a file documenting the changes Licensee made to create that Covered |
| * Code and the date of any change. Licensee must include in that file the |
| * documentation of any changes made by any predecessor Licensee. Licensee |
| * must include a prominent statement that the modification is derived, |
| * directly or indirectly, from Original Intel Code. |
| * |
| * 3.2. Redistribution of Source with no Rights to Further Distribute Source. |
| * Redistribution of source code of any substantial portion of the Covered |
| * Code or modification without rights to further distribute source must |
| * include the following Disclaimer and Export Compliance provision in the |
| * documentation and/or other materials provided with distribution. In |
| * addition, Licensee may not authorize further sublicense of source of any |
| * portion of the Covered Code, and must include terms to the effect that the |
| * license from Licensee to its licensee is limited to the intellectual |
| * property embodied in the software Licensee provides to its licensee, and |
| * not to intellectual property embodied in modifications its licensee may |
| * make. |
| * |
| * 3.3. Redistribution of Executable. Redistribution in executable form of any |
| * substantial portion of the Covered Code or modification must reproduce the |
| * above Copyright Notice, and the following Disclaimer and Export Compliance |
| * provision in the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3.4. Intel retains all right, title, and interest in and to the Original |
| * Intel Code. |
| * |
| * 3.5. Neither the name Intel nor any other trademark owned or controlled by |
| * Intel shall be used in advertising or otherwise to promote the sale, use or |
| * other dealings in products derived from or relating to the Covered Code |
| * without prior written authorization from Intel. |
| * |
| * 4. Disclaimer and Export Compliance |
| * |
| * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED |
| * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE |
| * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, |
| * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY |
| * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY |
| * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A |
| * PARTICULAR PURPOSE. |
| * |
| * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES |
| * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR |
| * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, |
| * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY |
| * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL |
| * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS |
| * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY |
| * LIMITED REMEDY. |
| * |
| * 4.3. Licensee shall not export, either directly or indirectly, any of this |
| * software or system incorporating such software without first obtaining any |
| * required license or other approval from the U. S. Department of Commerce or |
| * any other agency or department of the United States Government. In the |
| * event Licensee exports any such software from the United States or |
| * re-exports any such software from a foreign destination, Licensee shall |
| * ensure that the distribution and export/re-export of the software is in |
| * compliance with all laws, regulations, orders, or other restrictions of the |
| * U.S. Export Administration Regulations. Licensee agrees that neither it nor |
| * any of its subsidiaries will export/re-export any technical data, process, |
| * software, or service, directly or indirectly, to any country for which the |
| * United States government or any agency thereof requires an export license, |
| * other governmental approval, or letter of assurance, without first obtaining |
| * such license, approval or letter. |
| * |
| *****************************************************************************/ |
| |
| |
| #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); |
| } |
| |
| |