3cbfba02fe
https://svn.code.sf.net/p/edk2/code/trunk/edk2/, which are for MinnowBoard MAX open source project. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: David Wei <david.wei@intel.com> Reviewed-by: Mike Wu <mike.wu@intel.com> Reviewed-by: Hot Tian <hot.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16599 6f19259b-4bc3-4df7-8a09-765794883524
90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
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/*++
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Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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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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