| 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 - 2018, Intel Corporation. All rights reserved.<BR>
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| 6 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 7 |
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| 8 | @par Revision Reference:
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| 9 | This PPI is introduced in PI Version 1.0.
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| 10 |
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| 11 | **/
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| 12 |
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| 13 | #ifndef __PEI_CPUIO_PPI_H__
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| 14 | #define __PEI_CPUIO_PPI_H__
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| 15 |
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| 16 | #define EFI_PEI_CPU_IO_PPI_INSTALLED_GUID \
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| 17 | { 0xe6af1f7b, 0xfc3f, 0x46da, {0xa8, 0x28, 0xa3, 0xb4, 0x57, 0xa4, 0x42, 0x82 } }
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| 18 |
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| 19 | typedef struct _EFI_PEI_CPU_IO_PPI EFI_PEI_CPU_IO_PPI;
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| 20 |
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| 21 | ///
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| 22 | /// EFI_PEI_CPU_IO_PPI_WIDTH.
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| 23 | ///
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| 24 | typedef enum {
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| 25 | EfiPeiCpuIoWidthUint8,
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| 26 | EfiPeiCpuIoWidthUint16,
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| 27 | EfiPeiCpuIoWidthUint32,
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| 28 | EfiPeiCpuIoWidthUint64,
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| 29 | EfiPeiCpuIoWidthFifoUint8,
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| 30 | EfiPeiCpuIoWidthFifoUint16,
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| 31 | EfiPeiCpuIoWidthFifoUint32,
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| 32 | EfiPeiCpuIoWidthFifoUint64,
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| 33 | EfiPeiCpuIoWidthFillUint8,
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| 34 | EfiPeiCpuIoWidthFillUint16,
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| 35 | EfiPeiCpuIoWidthFillUint32,
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| 36 | EfiPeiCpuIoWidthFillUint64,
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| 37 | EfiPeiCpuIoWidthMaximum
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| 38 | } EFI_PEI_CPU_IO_PPI_WIDTH;
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| 39 |
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| 40 | /**
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| 41 | Memory-based access services and I/O-based access services.
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| 42 |
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| 43 | @param[in] PeiServices An indirect pointer to the PEI Services Table
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| 44 | published by the PEI Foundation.
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| 45 | @param[in] This The pointer to local data for the interface.
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| 46 | @param[in] Width The width of the access. Enumerated in bytes.
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| 47 | @param[in] Address The physical address of the access.
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| 48 | @param[in] Count The number of accesses to perform.
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| 49 | @param[in, out] Buffer A pointer to the buffer of data.
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| 50 |
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| 51 | @retval EFI_SUCCESS The function completed successfully.
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| 52 | @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
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| 53 |
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| 54 | **/
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| 55 | typedef
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| 56 | EFI_STATUS
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| 57 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_MEM)(
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| 58 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 59 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 60 | IN EFI_PEI_CPU_IO_PPI_WIDTH Width,
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| 61 | IN UINT64 Address,
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| 62 | IN UINTN Count,
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| 63 | IN OUT VOID *Buffer
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| 64 | );
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| 65 |
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| 66 | ///
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| 67 | /// EFI_PEI_CPU_IO_PPI_ACCESS
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| 68 | ///
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| 69 | typedef struct {
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| 70 | ///
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| 71 | /// This service provides the various modalities of memory and I/O read.
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| 72 | ///
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| 73 | EFI_PEI_CPU_IO_PPI_IO_MEM Read;
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| 74 | ///
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| 75 | /// This service provides the various modalities of memory and I/O write.
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| 76 | ///
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| 77 | EFI_PEI_CPU_IO_PPI_IO_MEM Write;
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| 78 | } EFI_PEI_CPU_IO_PPI_ACCESS;
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| 79 |
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| 80 | /**
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| 81 | 8-bit I/O read operations.
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| 82 |
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| 83 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 84 | by the PEI Foundation.
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| 85 | @param[in] This The pointer to local data for the interface.
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| 86 | @param[in] Address The physical address of the access.
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| 87 |
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| 88 | @return An 8-bit value returned from the I/O space.
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| 89 |
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| 90 | **/
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| 91 | typedef
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| 92 | UINT8
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| 93 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_READ8)(
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| 94 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 95 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 96 | IN UINT64 Address
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| 97 | );
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| 98 |
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| 99 | /**
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| 100 | 16-bit I/O read operations.
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| 101 |
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| 102 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 103 | by the PEI Foundation.
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| 104 | @param[in] This The pointer to local data for the interface.
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| 105 | @param[in] Address The physical address of the access.
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| 106 |
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| 107 | @return A 16-bit value returned from the I/O space.
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| 108 |
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| 109 | **/
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| 110 | typedef
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| 111 | UINT16
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| 112 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_READ16)(
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| 113 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 114 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 115 | IN UINT64 Address
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| 116 | );
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| 117 |
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| 118 | /**
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| 119 | 32-bit I/O read operations.
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| 120 |
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| 121 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 122 | by the PEI Foundation.
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| 123 | @param[in] This The pointer to local data for the interface.
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| 124 | @param[in] Address The physical address of the access.
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| 125 |
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| 126 | @return A 32-bit value returned from the I/O space.
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| 127 |
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| 128 | **/
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| 129 | typedef
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| 130 | UINT32
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| 131 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_READ32)(
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| 132 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 133 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 134 | IN UINT64 Address
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| 135 | );
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| 136 |
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| 137 | /**
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| 138 | 64-bit I/O read operations.
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| 139 |
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| 140 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 141 | by the PEI Foundation.
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| 142 | @param[in] This The pointer to local data for the interface.
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| 143 | @param[in] Address The physical address of the access.
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| 144 |
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| 145 | @return A 64-bit value returned from the I/O space.
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| 146 |
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| 147 | **/
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| 148 | typedef
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| 149 | UINT64
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| 150 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_READ64)(
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| 151 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 152 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 153 | IN UINT64 Address
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| 154 | );
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| 155 |
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| 156 | /**
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| 157 | 8-bit I/O write operations.
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| 158 |
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| 159 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 160 | by the PEI Foundation.
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| 161 | @param[in] This The pointer to local data for the interface.
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| 162 | @param[in] Address The physical address of the access.
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| 163 | @param[in] Data The data to write.
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| 164 |
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| 165 | **/
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| 166 | typedef
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| 167 | VOID
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| 168 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_WRITE8)(
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| 169 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 170 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 171 | IN UINT64 Address,
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| 172 | IN UINT8 Data
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| 173 | );
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| 174 |
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| 175 | /**
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| 176 | 16-bit I/O write operations.
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| 177 |
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| 178 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 179 | by the PEI Foundation.
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| 180 | @param[in] This The pointer to local data for the interface.
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| 181 | @param[in] Address The physical address of the access.
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| 182 | @param[in] Data The data to write.
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| 183 |
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| 184 | **/
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| 185 | typedef
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| 186 | VOID
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| 187 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_WRITE16)(
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| 188 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 189 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 190 | IN UINT64 Address,
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| 191 | IN UINT16 Data
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| 192 | );
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| 193 |
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| 194 | /**
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| 195 | 32-bit I/O write operations.
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| 196 |
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| 197 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 198 | by the PEI Foundation.
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| 199 | @param[in] This The pointer to local data for the interface.
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| 200 | @param[in] Address The physical address of the access.
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| 201 | @param[in] Data The data to write.
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| 202 |
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| 203 | **/
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| 204 | typedef
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| 205 | VOID
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| 206 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_WRITE32)(
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| 207 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 208 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 209 | IN UINT64 Address,
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| 210 | IN UINT32 Data
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| 211 | );
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| 212 |
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| 213 | /**
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| 214 | 64-bit I/O write operations.
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| 215 |
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| 216 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 217 | by the PEI Foundation.
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| 218 | @param[in] This The pointer to local data for the interface.
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| 219 | @param[in] Address The physical address of the access.
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| 220 | @param[in] Data The data to write.
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| 221 |
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| 222 | **/
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| 223 | typedef
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| 224 | VOID
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| 225 | (EFIAPI *EFI_PEI_CPU_IO_PPI_IO_WRITE64)(
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| 226 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 227 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 228 | IN UINT64 Address,
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| 229 | IN UINT64 Data
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| 230 | );
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| 231 |
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| 232 | /**
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| 233 | 8-bit memory read operations.
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| 234 |
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| 235 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 236 | by the PEI Foundation.
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| 237 | @param[in] This The pointer to local data for the interface.
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| 238 | @param[in] Address The physical address of the access.
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| 239 |
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| 240 | @return An 8-bit value returned from the memory space.
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| 241 |
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| 242 | **/
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| 243 | typedef
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| 244 | UINT8
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| 245 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_READ8)(
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| 246 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 247 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 248 | IN UINT64 Address
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| 249 | );
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| 250 |
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| 251 | /**
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| 252 | 16-bit memory read operations.
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| 253 |
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| 254 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 255 | by the PEI Foundation.
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| 256 | @param[in] This The pointer to local data for the interface.
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| 257 | @param[in] Address The physical address of the access.
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| 258 |
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| 259 | @return A 16-bit value returned from the memory space.
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| 260 |
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| 261 | **/
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| 262 | typedef
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| 263 | UINT16
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| 264 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_READ16)(
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| 265 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 266 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 267 | IN UINT64 Address
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| 268 | );
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| 269 |
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| 270 | /**
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| 271 | 32-bit memory read operations.
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| 272 |
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| 273 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 274 | by the PEI Foundation.
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| 275 | @param[in] This The pointer to local data for the interface.
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| 276 | @param[in] Address The physical address of the access.
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| 277 |
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| 278 | @return A 32-bit value returned from the memory space.
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| 279 |
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| 280 | **/
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| 281 | typedef
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| 282 | UINT32
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| 283 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_READ32)(
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| 284 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 285 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 286 | IN UINT64 Address
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| 287 | );
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| 288 |
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| 289 | /**
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| 290 | 64-bit memory read operations.
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| 291 |
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| 292 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 293 | by the PEI Foundation.
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| 294 | @param[in] This The pointer to local data for the interface.
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| 295 | @param[in] Address The physical address of the access.
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| 296 |
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| 297 | @return A 64-bit value returned from the memory space.
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| 298 |
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| 299 | **/
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| 300 | typedef
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| 301 | UINT64
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| 302 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_READ64)(
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| 303 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 304 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 305 | IN UINT64 Address
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| 306 | );
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| 307 |
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| 308 | /**
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| 309 | 8-bit memory write operations.
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| 310 |
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| 311 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 312 | by the PEI Foundation.
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| 313 | @param[in] This The pointer to local data for the interface.
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| 314 | @param[in] Address The physical address of the access.
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| 315 | @param[in] Data The data to write.
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| 316 |
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| 317 | **/
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| 318 | typedef
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| 319 | VOID
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| 320 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_WRITE8)(
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| 321 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 322 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 323 | IN UINT64 Address,
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| 324 | IN UINT8 Data
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| 325 | );
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| 326 |
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| 327 | /**
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| 328 | 16-bit memory write operations.
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| 329 |
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| 330 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 331 | by the PEI Foundation.
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| 332 | @param[in] This The pointer to local data for the interface.
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| 333 | @param[in] Address The physical address of the access.
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| 334 | @param[in] Data The data to write.
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| 335 |
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| 336 | **/
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| 337 | typedef
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| 338 | VOID
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| 339 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_WRITE16)(
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| 340 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 341 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 342 | IN UINT64 Address,
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| 343 | IN UINT16 Data
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| 344 | );
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| 345 |
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| 346 | /**
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| 347 | 32-bit memory write operations.
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| 348 |
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| 349 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 350 | by the PEI Foundation.
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| 351 | @param[in] This The pointer to local data for the interface.
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| 352 | @param[in] Address The physical address of the access.
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| 353 | @param[in] Data The data to write.
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| 354 |
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| 355 | **/
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| 356 | typedef
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| 357 | VOID
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| 358 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_WRITE32)(
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| 359 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 360 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 361 | IN UINT64 Address,
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| 362 | IN UINT32 Data
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| 363 | );
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| 364 |
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| 365 | /**
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| 366 | 64-bit memory write operations.
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| 367 |
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| 368 | @param[in] PeiServices An indirect pointer to the PEI Services Table published
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| 369 | by the PEI Foundation.
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| 370 | @param[in] This The pointer to local data for the interface.
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| 371 | @param[in] Address The physical address of the access.
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| 372 | @param[in] Data The data to write.
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| 373 |
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| 374 | **/
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| 375 | typedef
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| 376 | VOID
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| 377 | (EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_WRITE64)(
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| 378 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 379 | IN CONST EFI_PEI_CPU_IO_PPI *This,
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| 380 | IN UINT64 Address,
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| 381 | IN UINT64 Data
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| 382 | );
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| 383 |
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| 384 | ///
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| 385 | /// EFI_PEI_CPU_IO_PPI provides a set of memory and I/O-based services.
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| 386 | /// The perspective of the services is that of the processor, not that of the
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| 387 | /// bus or system.
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| 388 | ///
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| 389 | struct _EFI_PEI_CPU_IO_PPI {
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| 390 | ///
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| 391 | /// Collection of memory-access services.
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| 392 | ///
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| 393 | EFI_PEI_CPU_IO_PPI_ACCESS Mem;
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| 394 | ///
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| 395 | /// Collection of I/O-access services.
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| 396 | ///
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| 397 | EFI_PEI_CPU_IO_PPI_ACCESS Io;
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| 398 |
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| 399 | EFI_PEI_CPU_IO_PPI_IO_READ8 IoRead8;
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| 400 | EFI_PEI_CPU_IO_PPI_IO_READ16 IoRead16;
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| 401 | EFI_PEI_CPU_IO_PPI_IO_READ32 IoRead32;
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| 402 | EFI_PEI_CPU_IO_PPI_IO_READ64 IoRead64;
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| 403 |
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| 404 | EFI_PEI_CPU_IO_PPI_IO_WRITE8 IoWrite8;
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| 405 | EFI_PEI_CPU_IO_PPI_IO_WRITE16 IoWrite16;
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| 406 | EFI_PEI_CPU_IO_PPI_IO_WRITE32 IoWrite32;
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| 407 | EFI_PEI_CPU_IO_PPI_IO_WRITE64 IoWrite64;
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| 408 |
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| 409 | EFI_PEI_CPU_IO_PPI_MEM_READ8 MemRead8;
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| 410 | EFI_PEI_CPU_IO_PPI_MEM_READ16 MemRead16;
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| 411 | EFI_PEI_CPU_IO_PPI_MEM_READ32 MemRead32;
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| 412 | EFI_PEI_CPU_IO_PPI_MEM_READ64 MemRead64;
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| 413 |
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| 414 | EFI_PEI_CPU_IO_PPI_MEM_WRITE8 MemWrite8;
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| 415 | EFI_PEI_CPU_IO_PPI_MEM_WRITE16 MemWrite16;
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| 416 | EFI_PEI_CPU_IO_PPI_MEM_WRITE32 MemWrite32;
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| 417 | EFI_PEI_CPU_IO_PPI_MEM_WRITE64 MemWrite64;
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| 418 | };
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| 419 |
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| 420 | extern EFI_GUID gEfiPeiCpuIoPpiInstalledGuid;
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| 421 |
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| 422 | #endif
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