diff options
| -rw-r--r-- | ArmPkg/ArmPkg.dsc | 2 | ||||
| -rw-r--r-- | ArmPkg/Library/ArmDmaLib/ArmDmaLib.c | 478 | ||||
| -rw-r--r-- | ArmPkg/Library/ArmDmaLib/ArmDmaLib.inf | 49 |
3 files changed, 0 insertions, 529 deletions
diff --git a/ArmPkg/ArmPkg.dsc b/ArmPkg/ArmPkg.dsc index ff2b0c0..cf86f89 100644 --- a/ArmPkg/ArmPkg.dsc +++ b/ArmPkg/ArmPkg.dsc @@ -72,7 +72,6 @@ ArmGenericTimerCounterLib|ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.inf
ArmSmcLib|ArmPkg/Library/ArmSmcLib/ArmSmcLib.inf
ArmDisassemblerLib|ArmPkg/Library/ArmDisassemblerLib/ArmDisassemblerLib.inf
- DmaLib|ArmPkg/Library/ArmDmaLib/ArmDmaLib.inf
UefiApplicationEntryPoint|MdePkg/Library/UefiApplicationEntryPoint/UefiApplicationEntryPoint.inf
PerformanceLib|MdePkg/Library/BasePerformanceLibNull/BasePerformanceLibNull.inf
@@ -106,7 +105,6 @@ [Components.common]
ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.inf
ArmPkg/Library/ArmDisassemblerLib/ArmDisassemblerLib.inf
- ArmPkg/Library/ArmDmaLib/ArmDmaLib.inf
ArmPkg/Library/BdsLib/BdsLib.inf
ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
ArmPkg/Library/DebugAgentSymbolsBaseLib/DebugAgentSymbolsBaseLib.inf
diff --git a/ArmPkg/Library/ArmDmaLib/ArmDmaLib.c b/ArmPkg/Library/ArmDmaLib/ArmDmaLib.c deleted file mode 100644 index 2a8cf0f..0000000 --- a/ArmPkg/Library/ArmDmaLib/ArmDmaLib.c +++ /dev/null @@ -1,478 +0,0 @@ -/** @file
- Generic ARM implementation of DmaLib.h
-
- Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
- Copyright (c) 2015 - 2017, Linaro, Ltd. 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.
-
-**/
-
-#include <PiDxe.h>
-#include <Library/BaseLib.h>
-#include <Library/DebugLib.h>
-#include <Library/DmaLib.h>
-#include <Library/DxeServicesTableLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/IoLib.h>
-#include <Library/BaseMemoryLib.h>
-
-#include <Protocol/Cpu.h>
-
-typedef struct {
- EFI_PHYSICAL_ADDRESS HostAddress;
- VOID *BufferAddress;
- UINTN NumberOfBytes;
- DMA_MAP_OPERATION Operation;
- BOOLEAN DoubleBuffer;
-} MAP_INFO_INSTANCE;
-
-
-typedef struct {
- LIST_ENTRY Link;
- VOID *HostAddress;
- UINTN NumPages;
- UINT64 Attributes;
-} UNCACHED_ALLOCATION;
-
-STATIC EFI_CPU_ARCH_PROTOCOL *mCpu;
-STATIC LIST_ENTRY UncachedAllocationList;
-
-STATIC
-PHYSICAL_ADDRESS
-HostToDeviceAddress (
- IN VOID *Address
- )
-{
- return (PHYSICAL_ADDRESS)(UINTN)Address + PcdGet64 (PcdArmDmaDeviceOffset);
-}
-
-/**
- Provides the DMA controller-specific addresses needed to access system memory.
-
- Operation is relative to the DMA bus master.
-
- @param Operation Indicates if the bus master is going to read or write to system memory.
- @param HostAddress The system memory address to map to the DMA controller.
- @param NumberOfBytes On input the number of bytes to map. On output the number of bytes
- that were mapped.
- @param DeviceAddress The resulting map address for the bus master controller to use to
- access the hosts HostAddress.
- @param Mapping A resulting value to pass to Unmap().
-
- @retval EFI_SUCCESS The range was mapped for the returned NumberOfBytes.
- @retval EFI_UNSUPPORTED The HostAddress cannot be mapped as a common buffer.
- @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
- @retval EFI_DEVICE_ERROR The system hardware could not map the requested address.
-
-**/
-EFI_STATUS
-EFIAPI
-DmaMap (
- IN DMA_MAP_OPERATION Operation,
- IN VOID *HostAddress,
- IN OUT UINTN *NumberOfBytes,
- OUT PHYSICAL_ADDRESS *DeviceAddress,
- OUT VOID **Mapping
- )
-{
- EFI_STATUS Status;
- MAP_INFO_INSTANCE *Map;
- VOID *Buffer;
- EFI_GCD_MEMORY_SPACE_DESCRIPTOR GcdDescriptor;
- UINTN AllocSize;
-
- if (HostAddress == NULL || NumberOfBytes == NULL || DeviceAddress == NULL || Mapping == NULL ) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Operation >= MapOperationMaximum) {
- return EFI_INVALID_PARAMETER;
- }
-
- *DeviceAddress = HostToDeviceAddress (HostAddress);
-
- // Remember range so we can flush on the other side
- Map = AllocatePool (sizeof (MAP_INFO_INSTANCE));
- if (Map == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- if (Operation != MapOperationBusMasterRead &&
- ((((UINTN)HostAddress & (mCpu->DmaBufferAlignment - 1)) != 0) ||
- ((*NumberOfBytes & (mCpu->DmaBufferAlignment - 1)) != 0))) {
-
- // Get the cacheability of the region
- Status = gDS->GetMemorySpaceDescriptor ((UINTN)HostAddress, &GcdDescriptor);
- if (EFI_ERROR(Status)) {
- goto FreeMapInfo;
- }
-
- // If the mapped buffer is not an uncached buffer
- if ((GcdDescriptor.Attributes & (EFI_MEMORY_WB | EFI_MEMORY_WT)) != 0) {
- //
- // Operations of type MapOperationBusMasterCommonBuffer are only allowed
- // on uncached buffers.
- //
- if (Operation == MapOperationBusMasterCommonBuffer) {
- DEBUG ((EFI_D_ERROR,
- "%a: Operation type 'MapOperationBusMasterCommonBuffer' is only supported\n"
- "on memory regions that were allocated using DmaAllocateBuffer ()\n",
- __FUNCTION__));
- Status = EFI_UNSUPPORTED;
- goto FreeMapInfo;
- }
-
- //
- // If the buffer does not fill entire cache lines we must double buffer
- // into a suitably aligned allocation that allows us to invalidate the
- // cache without running the risk of corrupting adjacent unrelated data.
- // Note that pool allocations are guaranteed to be 8 byte aligned, so
- // we only have to add (alignment - 8) worth of padding.
- //
- Map->DoubleBuffer = TRUE;
- AllocSize = ALIGN_VALUE (*NumberOfBytes, mCpu->DmaBufferAlignment) +
- (mCpu->DmaBufferAlignment - 8);
- Map->BufferAddress = AllocatePool (AllocSize);
- if (Map->BufferAddress == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto FreeMapInfo;
- }
-
- Buffer = ALIGN_POINTER (Map->BufferAddress, mCpu->DmaBufferAlignment);
- *DeviceAddress = HostToDeviceAddress (Buffer);
-
- //
- // Get rid of any dirty cachelines covering the double buffer. This
- // prevents them from being written back unexpectedly, potentially
- // overwriting the data we receive from the device.
- //
- mCpu->FlushDataCache (mCpu, (UINTN)Buffer, *NumberOfBytes,
- EfiCpuFlushTypeWriteBack);
- } else {
- Map->DoubleBuffer = FALSE;
- }
- } else {
- Map->DoubleBuffer = FALSE;
-
- DEBUG_CODE_BEGIN ();
-
- //
- // The operation type check above only executes if the buffer happens to be
- // misaligned with respect to CWG, but even if it is aligned, we should not
- // allow arbitrary buffers to be used for creating consistent mappings.
- // So duplicate the check here when running in DEBUG mode, just to assert
- // that we are not trying to create a consistent mapping for cached memory.
- //
- Status = gDS->GetMemorySpaceDescriptor ((UINTN)HostAddress, &GcdDescriptor);
- ASSERT_EFI_ERROR(Status);
-
- ASSERT (Operation != MapOperationBusMasterCommonBuffer ||
- (GcdDescriptor.Attributes & (EFI_MEMORY_WB | EFI_MEMORY_WT)) == 0);
-
- DEBUG_CODE_END ();
-
- // Flush the Data Cache (should not have any effect if the memory region is uncached)
- mCpu->FlushDataCache (mCpu, (UINTN)HostAddress, *NumberOfBytes,
- EfiCpuFlushTypeWriteBackInvalidate);
- }
-
- Map->HostAddress = (UINTN)HostAddress;
- Map->NumberOfBytes = *NumberOfBytes;
- Map->Operation = Operation;
-
- *Mapping = Map;
-
- return EFI_SUCCESS;
-
-FreeMapInfo:
- FreePool (Map);
-
- return Status;
-}
-
-
-/**
- Completes the DmaMapBusMasterRead(), DmaMapBusMasterWrite(), or DmaMapBusMasterCommonBuffer()
- operation and releases any corresponding resources.
-
- @param Mapping The mapping value returned from DmaMap*().
-
- @retval EFI_SUCCESS The range was unmapped.
- @retval EFI_DEVICE_ERROR The data was not committed to the target system memory.
- @retval EFI_INVALID_PARAMETER An inconsistency was detected between the mapping type
- and the DoubleBuffer field
-
-**/
-EFI_STATUS
-EFIAPI
-DmaUnmap (
- IN VOID *Mapping
- )
-{
- MAP_INFO_INSTANCE *Map;
- EFI_STATUS Status;
- VOID *Buffer;
-
- if (Mapping == NULL) {
- ASSERT (FALSE);
- return EFI_INVALID_PARAMETER;
- }
-
- Map = (MAP_INFO_INSTANCE *)Mapping;
-
- Status = EFI_SUCCESS;
- if (Map->DoubleBuffer) {
- ASSERT (Map->Operation == MapOperationBusMasterWrite);
-
- if (Map->Operation != MapOperationBusMasterWrite) {
- Status = EFI_INVALID_PARAMETER;
- } else {
- Buffer = ALIGN_POINTER (Map->BufferAddress, mCpu->DmaBufferAlignment);
-
- mCpu->FlushDataCache (mCpu, (UINTN)Buffer, Map->NumberOfBytes,
- EfiCpuFlushTypeInvalidate);
-
- CopyMem ((VOID *)(UINTN)Map->HostAddress, Buffer, Map->NumberOfBytes);
-
- FreePool (Map->BufferAddress);
- }
- } else {
- if (Map->Operation == MapOperationBusMasterWrite) {
- //
- // Make sure we read buffer from uncached memory and not the cache
- //
- mCpu->FlushDataCache (mCpu, Map->HostAddress, Map->NumberOfBytes,
- EfiCpuFlushTypeInvalidate);
- }
- }
-
- FreePool (Map);
-
- return Status;
-}
-
-/**
- Allocates pages that are suitable for an DmaMap() of type MapOperationBusMasterCommonBuffer.
- mapping.
-
- @param MemoryType The type of memory to allocate, EfiBootServicesData or
- EfiRuntimeServicesData.
- @param Pages The number of pages to allocate.
- @param HostAddress A pointer to store the base system memory address of the
- allocated range.
-
- @retval EFI_SUCCESS The requested memory pages were allocated.
- @retval EFI_UNSUPPORTED Attributes is unsupported. The only legal attribute bits are
- MEMORY_WRITE_COMBINE and MEMORY_CACHED.
- @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
- @retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
-
-**/
-EFI_STATUS
-EFIAPI
-DmaAllocateBuffer (
- IN EFI_MEMORY_TYPE MemoryType,
- IN UINTN Pages,
- OUT VOID **HostAddress
- )
-{
- return DmaAllocateAlignedBuffer (MemoryType, Pages, 0, HostAddress);
-}
-
-/**
- Allocates pages that are suitable for an DmaMap() of type
- MapOperationBusMasterCommonBuffer mapping, at the requested alignment.
-
- @param MemoryType The type of memory to allocate, EfiBootServicesData or
- EfiRuntimeServicesData.
- @param Pages The number of pages to allocate.
- @param Alignment Alignment in bytes of the base of the returned
- buffer (must be a power of 2)
- @param HostAddress A pointer to store the base system memory address of the
- allocated range.
-
- @retval EFI_SUCCESS The requested memory pages were allocated.
- @retval EFI_UNSUPPORTED Attributes is unsupported. The only legal attribute bits are
- MEMORY_WRITE_COMBINE and MEMORY_CACHED.
- @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
- @retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
-
-**/
-EFI_STATUS
-EFIAPI
-DmaAllocateAlignedBuffer (
- IN EFI_MEMORY_TYPE MemoryType,
- IN UINTN Pages,
- IN UINTN Alignment,
- OUT VOID **HostAddress
- )
-{
- EFI_GCD_MEMORY_SPACE_DESCRIPTOR GcdDescriptor;
- VOID *Allocation;
- UINT64 MemType;
- UNCACHED_ALLOCATION *Alloc;
- EFI_STATUS Status;
-
- if (Alignment == 0) {
- Alignment = EFI_PAGE_SIZE;
- }
-
- if (HostAddress == NULL ||
- (Alignment & (Alignment - 1)) != 0) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (MemoryType == EfiBootServicesData) {
- Allocation = AllocateAlignedPages (Pages, Alignment);
- } else if (MemoryType == EfiRuntimeServicesData) {
- Allocation = AllocateAlignedRuntimePages (Pages, Alignment);
- } else {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Allocation == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- // Get the cacheability of the region
- Status = gDS->GetMemorySpaceDescriptor ((UINTN)Allocation, &GcdDescriptor);
- if (EFI_ERROR(Status)) {
- goto FreeBuffer;
- }
-
- // 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);
-}
diff --git a/ArmPkg/Library/ArmDmaLib/ArmDmaLib.inf b/ArmPkg/Library/ArmDmaLib/ArmDmaLib.inf deleted file mode 100644 index e33ed92..0000000 --- a/ArmPkg/Library/ArmDmaLib/ArmDmaLib.inf +++ /dev/null @@ -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
|