Vlv2DeviceRefCodePkg/ValleyView2Soc/NorthCluster/Include/Protocol/MemInfo.h

   1
   2 /*++
   3
   4 Copyright (c)  1999  - 2014, Intel Corporation. All rights reserved
   5
   6   SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8
   9 Module Name:
  10
  11   MemInfo.h
  12
  13 Abstract:
  14
  15   This protocol provides the memory information data, such as
  16   total physical memory size, memory frequency, memory size
  17   of each dimm and rank.
  18
  19   This protocol is EFI compatible.
  20
  21 --*/
  22
  23 #ifndef _MEM_INFO_PROTOCOL_H_
  24 #define _MEM_INFO_PROTOCOL_H_
  25
  26 //
  27 // Define the  protocol GUID
  28 //
  29 #define MEM_INFO_PROTOCOL_GUID \
  30   { \
  31     0x6f20f7c8, 0xe5ef, 0x4f21, 0x8d, 0x19, 0xed, 0xc5, 0xf0, 0xc4, 0x96, 0xae \
  32   }
  33
  34 //
  35 // Extern the GUID for protocol users.
  36 //
  37 extern EFI_GUID                   gMemInfoProtocolGuid;
  38
  39 //
  40 // Forward reference for ANSI C compatibility
  41 //
  42 typedef struct _MEM_INFO_PROTOCOL MEM_INFO_PROTOCOL;
  43
  44 //
  45 // Protocol definitions
  46 //
  47
  48 #define CH_NUM    2
  49 #define DIMM_NUM  1
  50 #define RANK_NUM  2
  51
  52 #pragma pack(1)
  53 typedef struct {
  54   UINT32  memSize;
  55   UINT8   ddrFreq;
  56   UINT8   ddrType;
  57   BOOLEAN EccSupport;
  58   UINT16  dimmSize[CH_NUM * DIMM_NUM];
  59   UINT8   reserved;
  60   UINT16   reserved2;
  61 } MEMORY_INFO_DATA;
  62 #pragma pack()
  63
  64 /*++
  65 Data definition:
  66
  67   memSize         Total physical memory size
  68   ddrFreq         DDR Frequency
  69   EccSupport      ECC Support
  70   dimmSize        Dimm Size
  71   DimmExist       Dimm Present or not
  72   RankInDimm      No. of ranks in a dimm
  73
  74 --*/
  75
  76 //
  77 // Protocol definition
  78 //
  79 struct _MEM_INFO_PROTOCOL {
  80   MEMORY_INFO_DATA  MemInfoData;
  81 };
  82
  83 #endif