1 2 /*++ 3 4 Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved 5 6 This program and the accompanying materials are licensed and made available under 7 the terms and conditions of the BSD License that accompanies this distribution. 8 The full text of the license may be found at 9 http://opensource.org/licenses/bsd-license.php. 10 11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 13 14 15 Module Name: 16 17 MemInfo.h 18 19 Abstract: 20 21 This protocol provides the memory information data, such as 22 total physical memory size, memory frequency, memory size 23 of each dimm and rank. 24 25 This protocol is EFI compatible. 26 27 --*/ 28 29 #ifndef _MEM_INFO_PROTOCOL_H_ 30 #define _MEM_INFO_PROTOCOL_H_ 31 32 // 33 // Define the protocol GUID 34 // 35 #define MEM_INFO_PROTOCOL_GUID \ 36 { \ 37 0x6f20f7c8, 0xe5ef, 0x4f21, 0x8d, 0x19, 0xed, 0xc5, 0xf0, 0xc4, 0x96, 0xae \ 38 } 39 40 // 41 // Extern the GUID for protocol users. 42 // 43 extern EFI_GUID gMemInfoProtocolGuid; 44 45 // 46 // Forward reference for ANSI C compatibility 47 // 48 typedef struct _MEM_INFO_PROTOCOL MEM_INFO_PROTOCOL; 49 50 // 51 // Protocol definitions 52 // 53 54 #define CH_NUM 2 55 #define DIMM_NUM 1 56 #define RANK_NUM 2 57 58 #pragma pack(1) 59 typedef struct { 60 UINT32 memSize; 61 UINT8 ddrFreq; 62 UINT8 ddrType; 63 BOOLEAN EccSupport; 64 UINT16 dimmSize[CH_NUM * DIMM_NUM]; 65 UINT8 reserved; 66 UINT16 reserved2; 67 } MEMORY_INFO_DATA; 68 #pragma pack() 69 70 /*++ 71 Data definition: 72 73 memSize Total physical memory size 74 ddrFreq DDR Frequency 75 EccSupport ECC Support 76 dimmSize Dimm Size 77 DimmExist Dimm Present or not 78 RankInDimm No. of ranks in a dimm 79 80 --*/ 81 82 // 83 // Protocol definition 84 // 85 struct _MEM_INFO_PROTOCOL { 86 MEMORY_INFO_DATA MemInfoData; 87 }; 88 89 #endif 90
