diff options
Diffstat (limited to 'src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Library/PciSegmentInfoLib.h')
-rw-r--r-- | src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Library/PciSegmentInfoLib.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Library/PciSegmentInfoLib.h b/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Library/PciSegmentInfoLib.h new file mode 100644 index 0000000000..228d75793b --- /dev/null +++ b/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Library/PciSegmentInfoLib.h @@ -0,0 +1,35 @@ +/** @file + Provides services to return segment information on a platform with multiple PCI segments. + + This library is consumed by PciSegmentLib to support multiple segment PCI configuration access. + + Copyright (c) 2017, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#ifndef __PCI_SEGMENT_INFO_LIB__ +#define __PCI_SEGMENT_INFO_LIB__ + +typedef struct { + UINT16 SegmentNumber; ///< Segment number. + UINT64 BaseAddress; ///< ECAM Base address. + UINT8 StartBusNumber; ///< Start BUS number, for verifying the PCI Segment address. + UINT8 EndBusNumber; ///< End BUS number, for verifying the PCI Segment address. +} PCI_SEGMENT_INFO; + +/** + Return an array of PCI_SEGMENT_INFO holding the segment information. + + Note: The returned array/buffer is owned by callee. + + @param Count Return the count of segments. + + @retval A callee owned array holding the segment information. +**/ +PCI_SEGMENT_INFO * +GetPciSegmentInfo ( + UINTN *Count + ); + +#endif |