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Diffstat (limited to 'ReferenceCode/Chipset/SystemAgent/Protocol/MemInfo/MemInfo.h')
| -rw-r--r-- | ReferenceCode/Chipset/SystemAgent/Protocol/MemInfo/MemInfo.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/ReferenceCode/Chipset/SystemAgent/Protocol/MemInfo/MemInfo.h b/ReferenceCode/Chipset/SystemAgent/Protocol/MemInfo/MemInfo.h new file mode 100644 index 0000000..6f0c662 --- /dev/null +++ b/ReferenceCode/Chipset/SystemAgent/Protocol/MemInfo/MemInfo.h @@ -0,0 +1,99 @@ +/** @file + This protocol provides the memory information data, such as + total physical memory size, memory frequency, memory size + of each dimm and rank. + +@copyright + Copyright (c) 1999 - 2012 Intel Corporation. All rights reserved + This software and associated documentation (if any) is furnished + under a license and may only be used or copied in accordance + with the terms of the license. Except as permitted by such + license, no part of this software or documentation may be + reproduced, stored in a retrieval system, or transmitted in any + form or by any means without the express written consent of + Intel Corporation. + + This file contains an 'Intel Peripheral Driver' and uniquely + identified as "Intel Reference Module" and is + licensed for Intel CPUs and chipsets under the terms of your + license agreement with Intel or your vendor. This file may + be modified by the user, subject to additional terms of the + license agreement +**/ +#ifndef _MEM_INFO_PROTOCOL_H_ +#define _MEM_INFO_PROTOCOL_H_ + +/// +/// Define the protocol GUID +/// +#define MEM_INFO_PROTOCOL_GUID \ + { \ + 0x6f20f7c8, 0xe5ef, 0x4f21, 0x8d, 0x19, 0xed, 0xc5, 0xf0, 0xc4, 0x96, 0xae \ + } + +/// +/// Extern the GUID for protocol users. +/// +extern EFI_GUID gMemInfoProtocolGuid; + +// +// Forward reference for ANSI C compatibility +// +typedef struct _MEM_INFO_PROTOCOL MEM_INFO_PROTOCOL; + +// +// Protocol definitions +// +#define NODE_NUM 1 +#define CH_NUM 2 +#define DIMM_NUM 2 +#define RANK_NUM 2 +#define PROFILE_NUM 4 // number of memory profiles supported + +#pragma pack(1) +typedef struct { + UINT32 tCK; ///< Memory cycle time, in femtoseconds. + UINT16 NMode; ///< Number of tCK cycles for the channel DIMM's command rate mode. + UINT16 tCL; ///< Number of tCK cycles for the channel DIMM's CAS latency. + UINT16 tCWL; ///< Number of tCK cycles for the channel DIMM's minimum CAS write latency time. + UINT16 tFAW; ///< Number of tCK cycles for the channel DIMM's minimum four activate window delay time. + UINT16 tRAS; ///< Number of tCK cycles for the channel DIMM's minimum active to precharge delay time. + UINT16 tRC; ///< Number of tCK cycles for the channel DIMM's minimum active to active/refresh delay time. + UINT16 tRCD; ///< Number of tCK cycles for the channel DIMM's minimum RAS# to CAS# delay time. + UINT16 tREFI; ///< Number of tCK cycles for the channel DIMM's minimum Average Periodic Refresh Interval. + UINT16 tRFC; ///< Number of tCK cycles for the channel DIMM's minimum refresh recovery delay time. + UINT16 tRP; ///< Number of tCK cycles for the channel DIMM's minimum row precharge delay time. + UINT16 tRPab; ///< Number of tCK cycles for the channel DIMM's minimum row precharge delay time for all banks. + UINT16 tRRD; ///< Number of tCK cycles for the channel DIMM's minimum row active to row active delay time. + UINT16 tRTP; ///< Number of tCK cycles for the channel DIMM's minimum internal read to precharge command delay time. + UINT16 tWR; ///< Number of tCK cycles for the channel DIMM's minimum write recovery time. + UINT16 tWTR; ///< Number of tCK cycles for the channel DIMM's minimum internal write to read command delay time. +} MEMORY_TIMING; + +typedef struct { + UINT32 memSize; ///< Total physical memory size + UINT16 ddrFreq; ///< DDR Frequency + UINT16 ddrFreqMax; + UINT8 RefClk; + UINT8 Ratio; + BOOLEAN EccSupport; ///< ECC Support + UINT16 dimmSize[NODE_NUM * CH_NUM * DIMM_NUM]; ///< Dimm Size + BOOLEAN DimmExist[NODE_NUM * CH_NUM * DIMM_NUM]; ///< Dimm Present or not + UINT8 RankInDimm[NODE_NUM * CH_NUM * DIMM_NUM]; ///< No. of ranks in a dimm + UINT8 Reserved[24]; + UINT8 *DimmsSpdData[NODE_NUM * CH_NUM * DIMM_NUM]; + UINT16 VddVoltage[PROFILE_NUM]; + MEMORY_TIMING Timing[PROFILE_NUM]; + UINT8 Profile; ///< Currently running memory profile + UINT8 XmpProfileEnable; ///< 0 = no XMP DIMMs in system +} MEMORY_INFO_DATA; +#pragma pack() + +/// +/// Protocol definition +/// +struct _MEM_INFO_PROTOCOL { + MEMORY_INFO_DATA MemInfoData; +}; + +#endif |