| 1 | /** @file
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| 2 | This PPI provides a set of memory and I/O-based services.
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| 3 | The perspective of the services is that of the processor, not the bus or system.
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| 4 |
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| 5 | Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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| 6 | This program and the accompanying materials are licensed and made available under
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| 7 | the terms and conditions of the BSD License that accompanies this distribution.
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| 8 | The full text of the license may be found at
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| 9 | http://opensource.org/licenses/bsd-license.php.
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| 10 |
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| 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 13 |
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| 14 | @par Revision Reference:
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| 15 | This PPI is introduced in PI Version 1.0.
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| 16 |
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| 17 | **/
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| 18 |
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| 19 | #ifndef __PEI_CPUIO_PPI_H__
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| 20 | #define __PEI_CPUIO_PPI_H__
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| 21 |
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| 22 | #define EFI_PEI_CPU_IO_PPI_INSTALLED_GUID \
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| 23 | { 0xe6af1f7b, 0xfc3f, 0x46da, {0xa8, 0x28, 0xa3, 0xb4, 0x57, 0xa4, 0x42, 0x82 } }
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| 24 |
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| 25 | typedef struct _EFI_PEI_CPU_IO_PPI EFI_PEI_CPU_IO_PPI;
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| 26 |
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| 27 | ///
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| 28 | /// EFI_PEI_CPU_IO_PPI_WIDTH.
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| 29 | ///
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| 30 | typedef enum {
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| 31 | EfiPeiCpuIoWidthUint8,
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| 32 | EfiPeiCpuIoWidthUint16,
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| 33 | EfiPeiCpuIoWidthUint32,
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| 34 | EfiPeiCpuIoWidthUint64,
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| 35 | EfiPeiCpuIoWidthFifoUint8,
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| 36 | EfiPeiCpuIoWidthFifoUint16,
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| 37 | EfiPeiCpuIoWidthFifoUint32,
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| 38 | EfiPeiCpuIoWidthFifoUint64,
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| 39 | EfiPeiCpuIoWidthFillUint8,
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| 40 | EfiPeiCpuIoWidthFillUint16,
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| 41 | EfiPeiCpuIoWidthFillUint32,
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| 42 | EfiPeiCpuIoWidthFillUint64,
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| 43 | EfiPeiCpuIoWidthMaximum
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| 44 | } EFI_PEI_CPU_IO_PPI_WIDTH;
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| 45 |
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| 46 | /**
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| 47 | Memory-based access services and I/O-based access services.
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| 48 |
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| 49 | @param[in] PeiServices An indirect pointer to the PEI Services Table
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| 50 | published by the PEI Foundation.
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| 51 | @param[in] This The pointer to local data for the interface.
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| 52 | @param[in] Width The width of the access. Enumerated in bytes.
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| 53 | @param[in] Address The physical address of the access.
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| 54 | @param[in] Count The number of accesses to perform.
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| 55 | @param[in, out] Buffer A pointer to the buffer of data.
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| 56 |
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| 57 | @retval EFI_SUCCESS The function completed successfully.
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| 58 | @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
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| 59 |
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| 60 | **/
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| 61 | typedef
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| 62 | EFI_STATUS
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| 63 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_MEM)(
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| 64 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 65 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 66 | IN EFI_PEI_CPU_IO_PPI_WIDTH Width,
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| 67 | IN UINT64 Address,
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| 68 | IN UINTN Count,
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| 69 | IN OUT VOID *Buffer
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| 70 | );
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| 71 |
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| 72 | ///
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| 73 | /// EFI_PEI_CPU_IO_PPI_ACCESS
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| 74 | ///
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| 75 | typedef struct {
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| 76 | ///
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| 77 | /// This service provides the various modalities of memory and I/O read.
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| 78 | ///
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| 79 | EFI_PEI_CPU_IO_PPI_IO_MEM Read;
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| 80 | ///
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| 81 | /// This service provides the various modalities of memory and I/O write.
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| 82 | ///
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| 83 | EFI_PEI_CPU_IO_PPI_IO_MEM Write;
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| 84 | } EFI_PEI_CPU_IO_PPI_ACCESS;
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| 85 |
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| 86 | /**
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| 87 | 8-bit I/O read operations.
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| 88 |
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| 89 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 90 | by the PEI Foundation.
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| 91 | @param[in] This The pointer to local data for the interface.
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| 92 | @param[in] Address The physical address of the access.
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| 93 |
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| 94 | @return An 8-bit value returned from the I/O space.
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| 95 |
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| 96 | **/
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| 97 | typedef
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| 98 | UINT8
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| 99 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_READ8)(
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| 100 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 101 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 102 | IN UINT64 Address
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| 103 | );
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| 104 |
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| 105 | /**
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| 106 | 16-bit I/O read operations.
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| 107 |
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| 108 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 109 | by the PEI Foundation.
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| 110 | @param[in] This The pointer to local data for the interface.
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| 111 | @param[in] Address The physical address of the access.
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| 112 |
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| 113 | @return A 16-bit value returned from the I/O space.
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| 114 |
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| 115 | **/
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| 116 | typedef
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| 117 | UINT16
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| 118 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_READ16)(
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| 119 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 120 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 121 | IN UINT64 Address
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| 122 | );
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| 123 |
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| 124 | /**
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| 125 | 32-bit I/O read operations.
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| 126 |
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| 127 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 128 | by the PEI Foundation.
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| 129 | @param[in] This The pointer to local data for the interface.
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| 130 | @param[in] Address The physical address of the access.
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| 131 |
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| 132 | @return A 32-bit value returned from the I/O space.
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| 133 |
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| 134 | **/
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| 135 | typedef
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| 136 | UINT32
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| 137 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_READ32)(
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| 138 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 139 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 140 | IN UINT64 Address
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| 141 | );
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| 142 |
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| 143 | /**
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| 144 | 64-bit I/O read operations.
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| 145 |
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| 146 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 147 | by the PEI Foundation.
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| 148 | @param[in] This The pointer to local data for the interface.
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| 149 | @param[in] Address The physical address of the access.
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| 150 |
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| 151 | @return A 64-bit value returned from the I/O space.
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| 152 |
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| 153 | **/
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| 154 | typedef
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| 155 | UINT64
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| 156 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_READ64)(
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| 157 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 158 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 159 | IN UINT64 Address
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| 160 | );
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| 161 |
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| 162 | /**
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| 163 | 8-bit I/O write operations.
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| 164 |
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| 165 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 166 | by the PEI Foundation.
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| 167 | @param[in] This The pointer to local data for the interface.
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| 168 | @param[in] Address The physical address of the access.
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| 169 | @param[in] Data The data to write.
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| 170 |
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| 171 | **/
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| 172 | typedef
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| 173 | VOID
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| 174 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_WRITE8)(
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| 175 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 176 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 177 | IN UINT64 Address,
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| 178 | IN UINT8 Data
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| 179 | );
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| 180 |
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| 181 | /**
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| 182 | 16-bit I/O write operations.
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| 183 |
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| 184 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 185 | by the PEI Foundation.
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| 186 | @param[in] This The pointer to local data for the interface.
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| 187 | @param[in] Address The physical address of the access.
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| 188 | @param[in] Data The data to write.
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| 189 |
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| 190 | **/
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| 191 | typedef
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| 192 | VOID
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| 193 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_WRITE16)(
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| 194 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 195 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 196 | IN UINT64 Address,
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| 197 | IN UINT16 Data
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| 198 | );
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| 199 |
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| 200 | /**
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| 201 | 32-bit I/O write operations.
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| 202 |
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| 203 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 204 | by the PEI Foundation.
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| 205 | @param[in] This The pointer to local data for the interface.
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| 206 | @param[in] Address The physical address of the access.
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| 207 | @param[in] Data The data to write.
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| 208 |
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| 209 | **/
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| 210 | typedef
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| 211 | VOID
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| 212 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_WRITE32)(
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| 213 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 214 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 215 | IN UINT64 Address,
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| 216 | IN UINT32 Data
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| 217 | );
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| 218 |
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| 219 | /**
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| 220 | 64-bit I/O write operations.
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| 221 |
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| 222 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 223 | by the PEI Foundation.
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| 224 | @param[in] This The pointer to local data for the interface.
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| 225 | @param[in] Address The physical address of the access.
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| 226 | @param[in] Data The data to write.
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| 227 |
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| 228 | **/
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| 229 | typedef
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| 230 | VOID
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| 231 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_WRITE64)(
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| 232 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 233 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 234 | IN UINT64 Address,
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| 235 | IN UINT64 Data
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| 236 | );
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| 237 |
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| 238 | /**
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| 239 | 8-bit memory read operations.
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| 240 |
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| 241 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 242 | by the PEI Foundation.
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| 243 | @param[in] This The pointer to local data for the interface.
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| 244 | @param[in] Address The physical address of the access.
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| 245 |
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| 246 | @return An 8-bit value returned from the memory space.
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| 247 |
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| 248 | **/
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| 249 | typedef
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| 250 | UINT8
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| 251 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_READ8)(
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| 252 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 253 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 254 | IN UINT64 Address
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| 255 | );
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| 256 |
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| 257 | /**
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| 258 | 16-bit memory read operations.
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| 259 |
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| 260 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 261 | by the PEI Foundation.
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| 262 | @param[in] This The pointer to local data for the interface.
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| 263 | @param[in] Address The physical address of the access.
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| 264 |
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| 265 | @return A 16-bit value returned from the memory space.
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| 266 |
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| 267 | **/
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| 268 | typedef
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| 269 | UINT16
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| 270 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_READ16)(
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| 271 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 272 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 273 | IN UINT64 Address
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| 274 | );
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| 275 |
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| 276 | /**
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| 277 | 32-bit memory read operations.
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| 278 |
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| 279 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 280 | by the PEI Foundation.
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| 281 | @param[in] This The pointer to local data for the interface.
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| 282 | @param[in] Address The physical address of the access.
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| 283 |
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| 284 | @return A 32-bit value returned from the memory space.
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| 285 |
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| 286 | **/
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| 287 | typedef
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| 288 | UINT32
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| 289 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_READ32)(
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| 290 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 291 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 292 | IN UINT64 Address
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| 293 | );
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| 294 |
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| 295 | /**
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| 296 | 64-bit memory read operations.
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| 297 |
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| 298 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 299 | by the PEI Foundation.
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| 300 | @param[in] This The pointer to local data for the interface.
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| 301 | @param[in] Address The physical address of the access.
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| 302 |
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| 303 | @return A 64-bit value returned from the memory space.
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| 304 |
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| 305 | **/
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| 306 | typedef
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| 307 | UINT64
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| 308 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_READ64)(
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| 309 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 310 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 311 | IN UINT64 Address
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| 312 | );
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| 313 |
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| 314 | /**
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| 315 | 8-bit memory write operations.
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| 316 |
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| 317 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 318 | by the PEI Foundation.
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| 319 | @param[in] This The pointer to local data for the interface.
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| 320 | @param[in] Address The physical address of the access.
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| 321 | @param[in] Data The data to write.
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| 322 |
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| 323 | **/
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| 324 | typedef
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| 325 | VOID
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| 326 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_WRITE8)(
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| 327 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 328 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 329 | IN UINT64 Address,
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| 330 | IN UINT8 Data
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| 331 | );
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| 332 |
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| 333 | /**
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| 334 | 16-bit memory write operations.
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| 335 |
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| 336 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 337 | by the PEI Foundation.
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| 338 | @param[in] This The pointer to local data for the interface.
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| 339 | @param[in] Address The physical address of the access.
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| 340 | @param[in] Data The data to write.
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| 341 |
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| 342 | **/
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| 343 | typedef
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| 344 | VOID
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| 345 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_WRITE16)(
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| 346 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 347 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 348 | IN UINT64 Address,
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| 349 | IN UINT16 Data
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| 350 | );
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| 351 |
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| 352 | /**
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| 353 | 32-bit memory write operations.
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| 354 |
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| 355 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 356 | by the PEI Foundation.
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| 357 | @param[in] This The pointer to local data for the interface.
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| 358 | @param[in] Address The physical address of the access.
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| 359 | @param[in] Data The data to write.
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| 360 |
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| 361 | **/
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| 362 | typedef
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| 363 | VOID
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| 364 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_WRITE32)(
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| 365 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 366 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 367 | IN UINT64 Address,
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| 368 | IN UINT32 Data
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| 369 | );
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| 370 |
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| 371 | /**
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| 372 | 64-bit memory write operations.
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| 373 |
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| 374 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 375 | by the PEI Foundation.
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| 376 | @param[in] This The pointer to local data for the interface.
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| 377 | @param[in] Address The physical address of the access.
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| 378 | @param[in] Data The data to write.
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| 379 |
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| 380 | **/
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| 381 | typedef
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| 382 | VOID
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| 383 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_WRITE64)(
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| 384 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 385 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 386 | IN UINT64 Address,
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| 387 | IN UINT64 Data
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| 388 | );
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| 389 |
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| 390 | ///
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| 391 | /// EFI_PEI_CPU_IO_PPI provides a set of memory and I/O-based services.
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| 392 | /// The perspective of the services is that of the processor, not that of the
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| 393 | /// bus or system.
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| 394 | ///
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| 395 | struct _EFI_PEI_CPU_IO_PPI {
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| 396 | ///
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| 397 | /// Collection of memory-access services.
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| 398 | ///
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| 399 | EFI_PEI_CPU_IO_PPI_ACCESS Mem;
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| 400 | ///
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| 401 | /// Collection of I/O-access services.
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| 402 | ///
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| 403 | EFI_PEI_CPU_IO_PPI_ACCESS Io;
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| 404 |
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| 405 | EFI_PEI_CPU_IO_PPI_IO_READ8 IoRead8;
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| 406 | EFI_PEI_CPU_IO_PPI_IO_READ16 IoRead16;
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| 407 | EFI_PEI_CPU_IO_PPI_IO_READ32 IoRead32;
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| 408 | EFI_PEI_CPU_IO_PPI_IO_READ64 IoRead64;
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| 409 |
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| 410 | EFI_PEI_CPU_IO_PPI_IO_WRITE8 IoWrite8;
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| 411 | EFI_PEI_CPU_IO_PPI_IO_WRITE16 IoWrite16;
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| 412 | EFI_PEI_CPU_IO_PPI_IO_WRITE32 IoWrite32;
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| 413 | EFI_PEI_CPU_IO_PPI_IO_WRITE64 IoWrite64;
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| 414 |
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| 415 | EFI_PEI_CPU_IO_PPI_MEM_READ8 MemRead8;
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| 416 | EFI_PEI_CPU_IO_PPI_MEM_READ16 MemRead16;
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| 417 | EFI_PEI_CPU_IO_PPI_MEM_READ32 MemRead32;
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| 418 | EFI_PEI_CPU_IO_PPI_MEM_READ64 MemRead64;
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| 419 |
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| 420 | EFI_PEI_CPU_IO_PPI_MEM_WRITE8 MemWrite8;
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| 421 | EFI_PEI_CPU_IO_PPI_MEM_WRITE16 MemWrite16;
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| 422 | EFI_PEI_CPU_IO_PPI_MEM_WRITE32 MemWrite32;
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| 423 | EFI_PEI_CPU_IO_PPI_MEM_WRITE64 MemWrite64;
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| 424 | };
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| 425 |
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| 426 | extern EFI_GUID gEfiPeiCpuIoPpiInstalledGuid;
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| 427 |
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| 428 | #endif
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