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Diffstat (limited to 'MdePkg/Library/PciSegmentLibSegmentInfo/PciSegmentLibCommon.h')
-rw-r--r-- | MdePkg/Library/PciSegmentLibSegmentInfo/PciSegmentLibCommon.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/MdePkg/Library/PciSegmentLibSegmentInfo/PciSegmentLibCommon.h b/MdePkg/Library/PciSegmentLibSegmentInfo/PciSegmentLibCommon.h new file mode 100644 index 000000000000..5b6c08ca8b05 --- /dev/null +++ b/MdePkg/Library/PciSegmentLibSegmentInfo/PciSegmentLibCommon.h @@ -0,0 +1,51 @@ +/** @file + Provide common routines used by BasePciSegmentLibSegmentInfo and + DxeRuntimePciSegmentLibSegmentInfo libraries. + + Copyright (c) 2017, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#ifndef _PCI_SEGMENT_LIB_COMMON_H_ +#define _PCI_SEGMENT_LIB_COMMON_H_ + +#include <Base.h> +#include <IndustryStandard/PciExpress21.h> +#include <Library/BaseLib.h> +#include <Library/DebugLib.h> +#include <Library/IoLib.h> +#include <Library/PciSegmentLib.h> +#include <Library/PciSegmentInfoLib.h> + +/** + Return the linear address for the physical address. + + @param Address The physical address. + + @retval The linear address. +**/ +UINTN +PciSegmentLibVirtualAddress ( + IN UINTN Address + ); + +/** + Internal function that converts PciSegmentLib format address that encodes the PCI Bus, Device, + Function and Register to ECAM (Enhanced Configuration Access Mechanism) address. + + @param Address The address that encodes the PCI Bus, Device, Function and + Register. + @param SegmentInfo An array of PCI_SEGMENT_INFO holding the segment information. + @param Count Number of segments. + + @retval ECAM address. +**/ +UINTN +PciSegmentLibGetEcamAddress ( + IN UINT64 Address, + IN CONST PCI_SEGMENT_INFO *SegmentInfo, + IN UINTN Count + ); + +#endif |