/** @file\r
Produces the CPU I/O PPI.\r
\r
-Copyright (c) 2009 - 2010, Intel Corporation\r
-All rights reserved. This program and the accompanying materials \r
+Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>\r
+\r
+This program and the accompanying materials \r
are licensed and made available under the terms and conditions of the BSD License \r
which accompanies this distribution. The full text of the license may be found at \r
http://opensource.org/licenses/bsd-license.php \r
\r
**/\r
\r
-#include <PiDxe.h>\r
-\r
-#include <Ppi/CpuIo.h>\r
-\r
-#include <Library/BaseLib.h>\r
-#include <Library/DebugLib.h>\r
-#include <Library/IoLib.h>\r
-#include <Library/PeiServicesLib.h>\r
-\r
-#define MAX_IO_PORT_ADDRESS 0xFFFF\r
-\r
-//\r
-// Function Prototypes\r
-//\r
-EFI_STATUS\r
-EFIAPI\r
-CpuMemoryServiceRead (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN EFI_PEI_CPU_IO_PPI_WIDTH Width,\r
- IN UINT64 Address,\r
- IN UINTN Count,\r
- OUT VOID *Buffer\r
- );\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-CpuMemoryServiceWrite (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN EFI_PEI_CPU_IO_PPI_WIDTH Width,\r
- IN UINT64 Address,\r
- IN UINTN Count,\r
- IN VOID *Buffer\r
- );\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-CpuIoServiceRead (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN EFI_PEI_CPU_IO_PPI_WIDTH Width,\r
- IN UINT64 Address,\r
- IN UINTN Count,\r
- OUT VOID *Buffer\r
- );\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-CpuIoServiceWrite (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN EFI_PEI_CPU_IO_PPI_WIDTH Width,\r
- IN UINT64 Address,\r
- IN UINTN Count,\r
- IN VOID *Buffer\r
- );\r
-\r
-UINT8\r
-EFIAPI\r
-CpuIoRead8 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address\r
- );\r
-\r
-UINT16\r
-EFIAPI\r
-CpuIoRead16 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address\r
- );\r
-\r
-UINT32\r
-EFIAPI\r
-CpuIoRead32 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address\r
- );\r
-\r
-UINT64\r
-EFIAPI\r
-CpuIoRead64 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address\r
- );\r
-\r
-VOID\r
-EFIAPI\r
-CpuIoWrite8 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address,\r
- IN UINT8 Data\r
- );\r
-\r
-VOID\r
-EFIAPI\r
-CpuIoWrite16 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address,\r
- IN UINT16 Data\r
- );\r
-\r
-VOID\r
-EFIAPI\r
-CpuIoWrite32 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address,\r
- IN UINT32 Data\r
- );\r
+#include "CpuIoPei.h"\r
\r
-VOID\r
-EFIAPI\r
-CpuIoWrite64 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address,\r
- IN UINT64 Data\r
- );\r
-\r
-UINT8\r
-EFIAPI\r
-CpuMemRead8 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address\r
- );\r
-\r
-UINT16\r
-EFIAPI\r
-CpuMemRead16 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address\r
- );\r
-\r
-UINT32\r
-EFIAPI\r
-CpuMemRead32 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address\r
- );\r
-\r
-UINT64\r
-EFIAPI\r
-CpuMemRead64 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address\r
- );\r
-\r
-VOID\r
-EFIAPI\r
-CpuMemWrite8 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address,\r
- IN UINT8 Data\r
- );\r
-\r
-VOID\r
-EFIAPI\r
-CpuMemWrite16 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address,\r
- IN UINT16 Data\r
- );\r
-\r
-VOID\r
-EFIAPI\r
-CpuMemWrite32 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address,\r
- IN UINT32 Data\r
- );\r
-\r
-VOID\r
-EFIAPI\r
-CpuMemWrite64 (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN CONST EFI_PEI_CPU_IO_PPI *This,\r
- IN UINT64 Address,\r
- IN UINT64 Data\r
- );\r
- \r
//\r
// Instance of CPU I/O PPI\r
//\r
//\r
// Check to see if Width is in the valid range\r
//\r
- if (Width < 0 || Width >= EfiPeiCpuIoWidthMaximum) {\r
+ if ((UINT32)Width >= EfiPeiCpuIoWidthMaximum) {\r
return EFI_INVALID_PARAMETER;\r
}\r
\r
InStride = mInStride[Width];\r
OutStride = mOutStride[Width];\r
OperationWidth = (EFI_PEI_CPU_IO_PPI_WIDTH) (Width & 0x03);\r
+\r
+ //\r
+ // Fifo operations supported for (mInStride[Width] == 0)\r
+ //\r
+ if (InStride == 0) {\r
+ switch (OperationWidth) {\r
+ case EfiPeiCpuIoWidthUint8:\r
+ IoReadFifo8 ((UINTN)Address, Count, Buffer);\r
+ return EFI_SUCCESS;\r
+ case EfiPeiCpuIoWidthUint16:\r
+ IoReadFifo16 ((UINTN)Address, Count, Buffer);\r
+ return EFI_SUCCESS;\r
+ case EfiPeiCpuIoWidthUint32:\r
+ IoReadFifo32 ((UINTN)Address, Count, Buffer);\r
+ return EFI_SUCCESS;\r
+ default:\r
+ //\r
+ // The CpuIoCheckParameter call above will ensure that this\r
+ // path is not taken.\r
+ //\r
+ ASSERT (FALSE);\r
+ break;\r
+ }\r
+ }\r
+\r
Aligned = (BOOLEAN)(((UINTN)Buffer & (mInStride[OperationWidth] - 1)) == 0x00);\r
for (Uint8Buffer = Buffer; Count > 0; Address += InStride, Uint8Buffer += OutStride, Count--) {\r
if (OperationWidth == EfiPeiCpuIoWidthUint8) {\r
InStride = mInStride[Width];\r
OutStride = mOutStride[Width];\r
OperationWidth = (EFI_PEI_CPU_IO_PPI_WIDTH) (Width & 0x03);\r
+\r
+ //\r
+ // Fifo operations supported for (mInStride[Width] == 0)\r
+ //\r
+ if (InStride == 0) {\r
+ switch (OperationWidth) {\r
+ case EfiPeiCpuIoWidthUint8:\r
+ IoWriteFifo8 ((UINTN)Address, Count, Buffer);\r
+ return EFI_SUCCESS;\r
+ case EfiPeiCpuIoWidthUint16:\r
+ IoWriteFifo16 ((UINTN)Address, Count, Buffer);\r
+ return EFI_SUCCESS;\r
+ case EfiPeiCpuIoWidthUint32:\r
+ IoWriteFifo32 ((UINTN)Address, Count, Buffer);\r
+ return EFI_SUCCESS;\r
+ default:\r
+ //\r
+ // The CpuIoCheckParameter call above will ensure that this\r
+ // path is not taken.\r
+ //\r
+ ASSERT (FALSE);\r
+ break;\r
+ }\r
+ }\r
+\r
Aligned = (BOOLEAN)(((UINTN)Buffer & (mInStride[OperationWidth] - 1)) == 0x00);\r
for (Uint8Buffer = (UINT8 *)Buffer; Count > 0; Address += InStride, Uint8Buffer += OutStride, Count--) {\r
if (OperationWidth == EfiPeiCpuIoWidthUint8) {\r
projects / mirror_edk2.git / blobdiff