/** @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 - 2020, 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 * | |
EFIAPI | |
GetPciSegmentInfo ( | |
UINTN *Count | |
); | |
#endif |