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/*++
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Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved
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SPDX-License-Identifier: BSD-2-Clause-Patent
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Module Name:
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MemInfo.h
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Abstract:
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This protocol provides the memory information data, such as
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total physical memory size, memory frequency, memory size
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of each dimm and rank.
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This protocol is EFI compatible.
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--*/
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#ifndef _MEM_INFO_PROTOCOL_H_
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#define _MEM_INFO_PROTOCOL_H_
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//
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// Define the protocol GUID
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//
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#define MEM_INFO_PROTOCOL_GUID \
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{ \
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0x6f20f7c8, 0xe5ef, 0x4f21, 0x8d, 0x19, 0xed, 0xc5, 0xf0, 0xc4, 0x96, 0xae \
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}
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//
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// Extern the GUID for protocol users.
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//
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extern EFI_GUID gMemInfoProtocolGuid;
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//
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// Forward reference for ANSI C compatibility
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//
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typedef struct _MEM_INFO_PROTOCOL MEM_INFO_PROTOCOL;
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//
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// Protocol definitions
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//
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#define CH_NUM 2
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#define DIMM_NUM 1
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#define RANK_NUM 2
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#pragma pack(1)
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typedef struct {
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UINT32 memSize;
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UINT8 ddrFreq;
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UINT8 ddrType;
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BOOLEAN EccSupport;
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UINT16 dimmSize[CH_NUM * DIMM_NUM];
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UINT8 reserved;
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UINT16 reserved2;
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} MEMORY_INFO_DATA;
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#pragma pack()
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/*++
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Data definition:
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memSize Total physical memory size
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ddrFreq DDR Frequency
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EccSupport ECC Support
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dimmSize Dimm Size
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DimmExist Dimm Present or not
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RankInDimm No. of ranks in a dimm
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--*/
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//
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// Protocol definition
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//
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struct _MEM_INFO_PROTOCOL {
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MEMORY_INFO_DATA MemInfoData;
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};
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#endif
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