/** @file
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DRAM info PPI to retrieve DRAM information from lower level firmware
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Copyright (c) 2017, Linaro Ltd. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _SYNQUACER_DRAMINFO_PPI_
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#define _SYNQUACER_DRAMINFO_PPI_
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#define SYNQUACER_DRAMINFO_PPI_GUID \
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{ 0x3e1d7356, 0xdda4, 0x4b1a, { 0x93, 0x46, 0xbf, 0x89, 0x1c, 0x86, 0x46, 0xcc } }
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/**
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Retrieve the number of discontiguous DRAM regions
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@param[out] RegionCount The number of available DRAM regions
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@retval EFI_SUCCESS The data was successfully returned.
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@retval EFI_INVALID_PARAMETER RegionCount == NULL
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**/
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typedef
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EFI_STATUS
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(EFIAPI * DRAMINFO_GET_REGION_COUNT) (
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OUT UINTN *RegionCount
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);
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/**
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Retrieve the base and size of a DRAM region
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@param[in] RegionIndex The 0-based index of the region to retrieve
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@param[out] Base The base of the requested region
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@param[out] Size The size of the requested region
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@retval EFI_SUCCESS The data was successfully returned.
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@retval EFI_INVALID_PARAMETER Base == NULL or Size == NULL
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@retval EFI_NOT_FOUND No region exists with index >= RegionIndex
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**/
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typedef
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EFI_STATUS
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(EFIAPI * DRAMINFO_GET_REGION) (
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IN UINTN RegionIndex,
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OUT UINT64 *Base,
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OUT UINT64 *Size
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);
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typedef struct {
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DRAMINFO_GET_REGION_COUNT GetRegionCount;
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DRAMINFO_GET_REGION GetRegion;
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} SYNQUACER_DRAM_INFO_PPI;
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extern EFI_GUID gSynQuacerDramInfoPpiGuid;
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#endif
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