| /** @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 |