mirror of https://github.com/acidanthera/audk.git
ArmPkg: remove ArmDmaLib
Now that we have a generic DmaLib implementation for non-coherent DMA, let's get rid of the ARM specific one. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Ard Biesheuvel
parent
1cc0f69bbe
commit
63ed4d2757
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@ -72,7 +72,6 @@
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ArmGenericTimerCounterLib|ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.inf
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ArmGenericTimerCounterLib|ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.inf
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ArmSmcLib|ArmPkg/Library/ArmSmcLib/ArmSmcLib.inf
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ArmSmcLib|ArmPkg/Library/ArmSmcLib/ArmSmcLib.inf
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ArmDisassemblerLib|ArmPkg/Library/ArmDisassemblerLib/ArmDisassemblerLib.inf
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ArmDisassemblerLib|ArmPkg/Library/ArmDisassemblerLib/ArmDisassemblerLib.inf
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DmaLib|ArmPkg/Library/ArmDmaLib/ArmDmaLib.inf
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UefiApplicationEntryPoint|MdePkg/Library/UefiApplicationEntryPoint/UefiApplicationEntryPoint.inf
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UefiApplicationEntryPoint|MdePkg/Library/UefiApplicationEntryPoint/UefiApplicationEntryPoint.inf
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PerformanceLib|MdePkg/Library/BasePerformanceLibNull/BasePerformanceLibNull.inf
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PerformanceLib|MdePkg/Library/BasePerformanceLibNull/BasePerformanceLibNull.inf
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@ -106,7 +105,6 @@
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[Components.common]
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[Components.common]
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ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.inf
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ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.inf
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ArmPkg/Library/ArmDisassemblerLib/ArmDisassemblerLib.inf
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ArmPkg/Library/ArmDisassemblerLib/ArmDisassemblerLib.inf
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ArmPkg/Library/ArmDmaLib/ArmDmaLib.inf
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ArmPkg/Library/BdsLib/BdsLib.inf
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ArmPkg/Library/BdsLib/BdsLib.inf
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ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
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ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
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ArmPkg/Library/DebugAgentSymbolsBaseLib/DebugAgentSymbolsBaseLib.inf
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ArmPkg/Library/DebugAgentSymbolsBaseLib/DebugAgentSymbolsBaseLib.inf
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@ -1,478 +0,0 @@
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/** @file
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Generic ARM implementation of DmaLib.h
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Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
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Copyright (c) 2015 - 2017, Linaro, Ltd. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiDxe.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/DmaLib.h>
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#include <Library/DxeServicesTableLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/IoLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Protocol/Cpu.h>
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typedef struct {
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EFI_PHYSICAL_ADDRESS HostAddress;
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VOID *BufferAddress;
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UINTN NumberOfBytes;
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DMA_MAP_OPERATION Operation;
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BOOLEAN DoubleBuffer;
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} MAP_INFO_INSTANCE;
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typedef struct {
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LIST_ENTRY Link;
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VOID *HostAddress;
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UINTN NumPages;
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UINT64 Attributes;
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} UNCACHED_ALLOCATION;
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STATIC EFI_CPU_ARCH_PROTOCOL *mCpu;
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STATIC LIST_ENTRY UncachedAllocationList;
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STATIC
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PHYSICAL_ADDRESS
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HostToDeviceAddress (
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IN VOID *Address
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)
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{
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return (PHYSICAL_ADDRESS)(UINTN)Address + PcdGet64 (PcdArmDmaDeviceOffset);
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}
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/**
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Provides the DMA controller-specific addresses needed to access system memory.
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Operation is relative to the DMA bus master.
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@param Operation Indicates if the bus master is going to read or write to system memory.
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@param HostAddress The system memory address to map to the DMA controller.
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@param NumberOfBytes On input the number of bytes to map. On output the number of bytes
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that were mapped.
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@param DeviceAddress The resulting map address for the bus master controller to use to
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access the hosts HostAddress.
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@param Mapping A resulting value to pass to Unmap().
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@retval EFI_SUCCESS The range was mapped for the returned NumberOfBytes.
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@retval EFI_UNSUPPORTED The HostAddress cannot be mapped as a common buffer.
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@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
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@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
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@retval EFI_DEVICE_ERROR The system hardware could not map the requested address.
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**/
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EFI_STATUS
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EFIAPI
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DmaMap (
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IN DMA_MAP_OPERATION Operation,
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IN VOID *HostAddress,
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IN OUT UINTN *NumberOfBytes,
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OUT PHYSICAL_ADDRESS *DeviceAddress,
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OUT VOID **Mapping
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)
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{
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EFI_STATUS Status;
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MAP_INFO_INSTANCE *Map;
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VOID *Buffer;
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EFI_GCD_MEMORY_SPACE_DESCRIPTOR GcdDescriptor;
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UINTN AllocSize;
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if (HostAddress == NULL || NumberOfBytes == NULL || DeviceAddress == NULL || Mapping == NULL ) {
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return EFI_INVALID_PARAMETER;
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}
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if (Operation >= MapOperationMaximum) {
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return EFI_INVALID_PARAMETER;
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}
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*DeviceAddress = HostToDeviceAddress (HostAddress);
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// Remember range so we can flush on the other side
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Map = AllocatePool (sizeof (MAP_INFO_INSTANCE));
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if (Map == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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if (Operation != MapOperationBusMasterRead &&
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((((UINTN)HostAddress & (mCpu->DmaBufferAlignment - 1)) != 0) ||
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((*NumberOfBytes & (mCpu->DmaBufferAlignment - 1)) != 0))) {
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// Get the cacheability of the region
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Status = gDS->GetMemorySpaceDescriptor ((UINTN)HostAddress, &GcdDescriptor);
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if (EFI_ERROR(Status)) {
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goto FreeMapInfo;
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}
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// If the mapped buffer is not an uncached buffer
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if ((GcdDescriptor.Attributes & (EFI_MEMORY_WB | EFI_MEMORY_WT)) != 0) {
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//
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// Operations of type MapOperationBusMasterCommonBuffer are only allowed
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// on uncached buffers.
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//
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if (Operation == MapOperationBusMasterCommonBuffer) {
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DEBUG ((EFI_D_ERROR,
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"%a: Operation type 'MapOperationBusMasterCommonBuffer' is only supported\n"
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"on memory regions that were allocated using DmaAllocateBuffer ()\n",
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__FUNCTION__));
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Status = EFI_UNSUPPORTED;
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goto FreeMapInfo;
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}
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//
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// If the buffer does not fill entire cache lines we must double buffer
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// into a suitably aligned allocation that allows us to invalidate the
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// cache without running the risk of corrupting adjacent unrelated data.
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// Note that pool allocations are guaranteed to be 8 byte aligned, so
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// we only have to add (alignment - 8) worth of padding.
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//
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Map->DoubleBuffer = TRUE;
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AllocSize = ALIGN_VALUE (*NumberOfBytes, mCpu->DmaBufferAlignment) +
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(mCpu->DmaBufferAlignment - 8);
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Map->BufferAddress = AllocatePool (AllocSize);
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if (Map->BufferAddress == NULL) {
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Status = EFI_OUT_OF_RESOURCES;
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goto FreeMapInfo;
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}
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Buffer = ALIGN_POINTER (Map->BufferAddress, mCpu->DmaBufferAlignment);
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*DeviceAddress = HostToDeviceAddress (Buffer);
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//
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// Get rid of any dirty cachelines covering the double buffer. This
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// prevents them from being written back unexpectedly, potentially
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// overwriting the data we receive from the device.
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//
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mCpu->FlushDataCache (mCpu, (UINTN)Buffer, *NumberOfBytes,
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EfiCpuFlushTypeWriteBack);
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} else {
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Map->DoubleBuffer = FALSE;
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}
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} else {
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Map->DoubleBuffer = FALSE;
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DEBUG_CODE_BEGIN ();
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//
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// The operation type check above only executes if the buffer happens to be
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// misaligned with respect to CWG, but even if it is aligned, we should not
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// allow arbitrary buffers to be used for creating consistent mappings.
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// So duplicate the check here when running in DEBUG mode, just to assert
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// that we are not trying to create a consistent mapping for cached memory.
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//
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Status = gDS->GetMemorySpaceDescriptor ((UINTN)HostAddress, &GcdDescriptor);
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ASSERT_EFI_ERROR(Status);
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ASSERT (Operation != MapOperationBusMasterCommonBuffer ||
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(GcdDescriptor.Attributes & (EFI_MEMORY_WB | EFI_MEMORY_WT)) == 0);
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DEBUG_CODE_END ();
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// Flush the Data Cache (should not have any effect if the memory region is uncached)
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mCpu->FlushDataCache (mCpu, (UINTN)HostAddress, *NumberOfBytes,
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EfiCpuFlushTypeWriteBackInvalidate);
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}
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Map->HostAddress = (UINTN)HostAddress;
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Map->NumberOfBytes = *NumberOfBytes;
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Map->Operation = Operation;
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*Mapping = Map;
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return EFI_SUCCESS;
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FreeMapInfo:
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FreePool (Map);
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return Status;
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}
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/**
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Completes the DmaMapBusMasterRead(), DmaMapBusMasterWrite(), or DmaMapBusMasterCommonBuffer()
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operation and releases any corresponding resources.
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@param Mapping The mapping value returned from DmaMap*().
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@retval EFI_SUCCESS The range was unmapped.
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@retval EFI_DEVICE_ERROR The data was not committed to the target system memory.
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@retval EFI_INVALID_PARAMETER An inconsistency was detected between the mapping type
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and the DoubleBuffer field
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**/
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EFI_STATUS
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EFIAPI
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DmaUnmap (
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IN VOID *Mapping
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)
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{
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MAP_INFO_INSTANCE *Map;
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EFI_STATUS Status;
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VOID *Buffer;
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if (Mapping == NULL) {
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ASSERT (FALSE);
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return EFI_INVALID_PARAMETER;
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}
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Map = (MAP_INFO_INSTANCE *)Mapping;
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Status = EFI_SUCCESS;
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if (Map->DoubleBuffer) {
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ASSERT (Map->Operation == MapOperationBusMasterWrite);
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if (Map->Operation != MapOperationBusMasterWrite) {
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Status = EFI_INVALID_PARAMETER;
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} else {
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Buffer = ALIGN_POINTER (Map->BufferAddress, mCpu->DmaBufferAlignment);
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mCpu->FlushDataCache (mCpu, (UINTN)Buffer, Map->NumberOfBytes,
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EfiCpuFlushTypeInvalidate);
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CopyMem ((VOID *)(UINTN)Map->HostAddress, Buffer, Map->NumberOfBytes);
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FreePool (Map->BufferAddress);
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}
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} else {
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if (Map->Operation == MapOperationBusMasterWrite) {
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//
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// Make sure we read buffer from uncached memory and not the cache
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//
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mCpu->FlushDataCache (mCpu, Map->HostAddress, Map->NumberOfBytes,
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EfiCpuFlushTypeInvalidate);
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}
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}
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FreePool (Map);
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return Status;
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}
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/**
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Allocates pages that are suitable for an DmaMap() of type MapOperationBusMasterCommonBuffer.
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mapping.
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@param MemoryType The type of memory to allocate, EfiBootServicesData or
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EfiRuntimeServicesData.
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@param Pages The number of pages to allocate.
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@param HostAddress A pointer to store the base system memory address of the
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allocated range.
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@retval EFI_SUCCESS The requested memory pages were allocated.
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@retval EFI_UNSUPPORTED Attributes is unsupported. The only legal attribute bits are
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MEMORY_WRITE_COMBINE and MEMORY_CACHED.
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@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
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@retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
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**/
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EFI_STATUS
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EFIAPI
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DmaAllocateBuffer (
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IN EFI_MEMORY_TYPE MemoryType,
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IN UINTN Pages,
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OUT VOID **HostAddress
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)
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{
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return DmaAllocateAlignedBuffer (MemoryType, Pages, 0, HostAddress);
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}
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/**
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Allocates pages that are suitable for an DmaMap() of type
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MapOperationBusMasterCommonBuffer mapping, at the requested alignment.
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@param MemoryType The type of memory to allocate, EfiBootServicesData or
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EfiRuntimeServicesData.
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@param Pages The number of pages to allocate.
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@param Alignment Alignment in bytes of the base of the returned
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buffer (must be a power of 2)
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@param HostAddress A pointer to store the base system memory address of the
|
|
||||||
allocated range.
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||||||
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@retval EFI_SUCCESS The requested memory pages were allocated.
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@retval EFI_UNSUPPORTED Attributes is unsupported. The only legal attribute bits are
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MEMORY_WRITE_COMBINE and MEMORY_CACHED.
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@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
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|
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@retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
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|
||||||
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|
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**/
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EFI_STATUS
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EFIAPI
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DmaAllocateAlignedBuffer (
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|
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IN EFI_MEMORY_TYPE MemoryType,
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|
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IN UINTN Pages,
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|
||||||
IN UINTN Alignment,
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|
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OUT VOID **HostAddress
|
|
||||||
)
|
|
||||||
{
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|
||||||
EFI_GCD_MEMORY_SPACE_DESCRIPTOR GcdDescriptor;
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|
||||||
VOID *Allocation;
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|
||||||
UINT64 MemType;
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|
||||||
UNCACHED_ALLOCATION *Alloc;
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|
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EFI_STATUS Status;
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||||||
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|
||||||
if (Alignment == 0) {
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|
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Alignment = EFI_PAGE_SIZE;
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|
||||||
}
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||||||
|
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if (HostAddress == NULL ||
|
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(Alignment & (Alignment - 1)) != 0) {
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return EFI_INVALID_PARAMETER;
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|
||||||
}
|
|
||||||
|
|
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if (MemoryType == EfiBootServicesData) {
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|
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Allocation = AllocateAlignedPages (Pages, Alignment);
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|
||||||
} else if (MemoryType == EfiRuntimeServicesData) {
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|
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Allocation = AllocateAlignedRuntimePages (Pages, Alignment);
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|
||||||
} else {
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|
||||||
return EFI_INVALID_PARAMETER;
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|
||||||
}
|
|
||||||
|
|
||||||
if (Allocation == NULL) {
|
|
||||||
return EFI_OUT_OF_RESOURCES;
|
|
||||||
}
|
|
||||||
|
|
||||||
// Get the cacheability of the region
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|
||||||
Status = gDS->GetMemorySpaceDescriptor ((UINTN)Allocation, &GcdDescriptor);
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|
||||||
if (EFI_ERROR(Status)) {
|
|
||||||
goto FreeBuffer;
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|
||||||
}
|
|
||||||
|
|
||||||
// Choose a suitable uncached memory type that is supported by the region
|
|
||||||
if (GcdDescriptor.Capabilities & EFI_MEMORY_WC) {
|
|
||||||
MemType = EFI_MEMORY_WC;
|
|
||||||
} else if (GcdDescriptor.Capabilities & EFI_MEMORY_UC) {
|
|
||||||
MemType = EFI_MEMORY_UC;
|
|
||||||
} else {
|
|
||||||
Status = EFI_UNSUPPORTED;
|
|
||||||
goto FreeBuffer;
|
|
||||||
}
|
|
||||||
|
|
||||||
Alloc = AllocatePool (sizeof *Alloc);
|
|
||||||
if (Alloc == NULL) {
|
|
||||||
goto FreeBuffer;
|
|
||||||
}
|
|
||||||
|
|
||||||
Alloc->HostAddress = Allocation;
|
|
||||||
Alloc->NumPages = Pages;
|
|
||||||
Alloc->Attributes = GcdDescriptor.Attributes;
|
|
||||||
|
|
||||||
InsertHeadList (&UncachedAllocationList, &Alloc->Link);
|
|
||||||
|
|
||||||
// Remap the region with the new attributes
|
|
||||||
Status = gDS->SetMemorySpaceAttributes ((PHYSICAL_ADDRESS)(UINTN)Allocation,
|
|
||||||
EFI_PAGES_TO_SIZE (Pages),
|
|
||||||
MemType);
|
|
||||||
if (EFI_ERROR (Status)) {
|
|
||||||
goto FreeAlloc;
|
|
||||||
}
|
|
||||||
|
|
||||||
Status = mCpu->FlushDataCache (mCpu,
|
|
||||||
(PHYSICAL_ADDRESS)(UINTN)Allocation,
|
|
||||||
EFI_PAGES_TO_SIZE (Pages),
|
|
||||||
EfiCpuFlushTypeInvalidate);
|
|
||||||
if (EFI_ERROR (Status)) {
|
|
||||||
goto FreeAlloc;
|
|
||||||
}
|
|
||||||
|
|
||||||
*HostAddress = Allocation;
|
|
||||||
|
|
||||||
return EFI_SUCCESS;
|
|
||||||
|
|
||||||
FreeAlloc:
|
|
||||||
RemoveEntryList (&Alloc->Link);
|
|
||||||
FreePool (Alloc);
|
|
||||||
|
|
||||||
FreeBuffer:
|
|
||||||
FreePages (Allocation, Pages);
|
|
||||||
return Status;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
Frees memory that was allocated with DmaAllocateBuffer().
|
|
||||||
|
|
||||||
@param Pages The number of pages to free.
|
|
||||||
@param HostAddress The base system memory address of the allocated range.
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS The requested memory pages were freed.
|
|
||||||
@retval EFI_INVALID_PARAMETER The memory range specified by HostAddress and Pages
|
|
||||||
was not allocated with DmaAllocateBuffer().
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
DmaFreeBuffer (
|
|
||||||
IN UINTN Pages,
|
|
||||||
IN VOID *HostAddress
|
|
||||||
)
|
|
||||||
{
|
|
||||||
LIST_ENTRY *Link;
|
|
||||||
UNCACHED_ALLOCATION *Alloc;
|
|
||||||
BOOLEAN Found;
|
|
||||||
EFI_STATUS Status;
|
|
||||||
|
|
||||||
if (HostAddress == NULL) {
|
|
||||||
return EFI_INVALID_PARAMETER;
|
|
||||||
}
|
|
||||||
|
|
||||||
for (Link = GetFirstNode (&UncachedAllocationList), Found = FALSE;
|
|
||||||
!IsNull (&UncachedAllocationList, Link);
|
|
||||||
Link = GetNextNode (&UncachedAllocationList, Link)) {
|
|
||||||
|
|
||||||
Alloc = BASE_CR (Link, UNCACHED_ALLOCATION, Link);
|
|
||||||
if (Alloc->HostAddress == HostAddress && Alloc->NumPages == Pages) {
|
|
||||||
Found = TRUE;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (!Found) {
|
|
||||||
ASSERT (FALSE);
|
|
||||||
return EFI_INVALID_PARAMETER;
|
|
||||||
}
|
|
||||||
|
|
||||||
RemoveEntryList (&Alloc->Link);
|
|
||||||
|
|
||||||
Status = gDS->SetMemorySpaceAttributes ((PHYSICAL_ADDRESS)(UINTN)HostAddress,
|
|
||||||
EFI_PAGES_TO_SIZE (Pages),
|
|
||||||
Alloc->Attributes);
|
|
||||||
if (EFI_ERROR (Status)) {
|
|
||||||
goto FreeAlloc;
|
|
||||||
}
|
|
||||||
|
|
||||||
//
|
|
||||||
// If we fail to restore the original attributes, it is better to leak the
|
|
||||||
// memory than to return it to the heap
|
|
||||||
//
|
|
||||||
FreePages (HostAddress, Pages);
|
|
||||||
|
|
||||||
FreeAlloc:
|
|
||||||
FreePool (Alloc);
|
|
||||||
return Status;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
ArmDmaLibConstructor (
|
|
||||||
IN EFI_HANDLE ImageHandle,
|
|
||||||
IN EFI_SYSTEM_TABLE *SystemTable
|
|
||||||
)
|
|
||||||
{
|
|
||||||
InitializeListHead (&UncachedAllocationList);
|
|
||||||
|
|
||||||
// Get the Cpu protocol for later use
|
|
||||||
return gBS->LocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (VOID **)&mCpu);
|
|
||||||
}
|
|
||||||
|
|
@ -1,49 +0,0 @@
|
||||||
#/** @file
|
|
||||||
#
|
|
||||||
# Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
|
|
||||||
# This program and the accompanying materials
|
|
||||||
# are licensed and made available under the terms and conditions of the BSD License
|
|
||||||
# which accompanies this distribution. The full text of the license may be found at
|
|
||||||
# http://opensource.org/licenses/bsd-license.php
|
|
||||||
#
|
|
||||||
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
||||||
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
||||||
#
|
|
||||||
#**/
|
|
||||||
|
|
||||||
[Defines]
|
|
||||||
INF_VERSION = 0x00010005
|
|
||||||
BASE_NAME = ArmDmaLib
|
|
||||||
FILE_GUID = F1BD6B36-B705-43aa-8A28-33F58ED85EFB
|
|
||||||
MODULE_TYPE = UEFI_DRIVER
|
|
||||||
VERSION_STRING = 1.0
|
|
||||||
LIBRARY_CLASS = DmaLib
|
|
||||||
CONSTRUCTOR = ArmDmaLibConstructor
|
|
||||||
|
|
||||||
[Sources.common]
|
|
||||||
ArmDmaLib.c
|
|
||||||
|
|
||||||
[Packages]
|
|
||||||
MdePkg/MdePkg.dec
|
|
||||||
EmbeddedPkg/EmbeddedPkg.dec
|
|
||||||
ArmPkg/ArmPkg.dec
|
|
||||||
|
|
||||||
|
|
||||||
[LibraryClasses]
|
|
||||||
DebugLib
|
|
||||||
DxeServicesTableLib
|
|
||||||
UefiBootServicesTableLib
|
|
||||||
MemoryAllocationLib
|
|
||||||
IoLib
|
|
||||||
BaseMemoryLib
|
|
||||||
|
|
||||||
[Protocols]
|
|
||||||
gEfiCpuArchProtocolGuid
|
|
||||||
|
|
||||||
[Guids]
|
|
||||||
|
|
||||||
[Pcd]
|
|
||||||
gArmTokenSpaceGuid.PcdArmDmaDeviceOffset
|
|
||||||
|
|
||||||
[Depex]
|
|
||||||
gEfiCpuArchProtocolGuid
|
|
||||||
Loading…
Reference in New Issue