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36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
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/** @file
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Provides services to return segment information on a platform with multiple PCI segments.
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This library is consumed by PciSegmentLib to support multiple segment PCI configuration access.
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Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __PCI_SEGMENT_INFO_LIB__
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#define __PCI_SEGMENT_INFO_LIB__
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typedef struct {
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UINT16 SegmentNumber; ///< Segment number.
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UINT64 BaseAddress; ///< ECAM Base address.
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UINT8 StartBusNumber; ///< Start BUS number, for verifying the PCI Segment address.
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UINT8 EndBusNumber; ///< End BUS number, for verifying the PCI Segment address.
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} PCI_SEGMENT_INFO;
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/**
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Return an array of PCI_SEGMENT_INFO holding the segment information.
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Note: The returned array/buffer is owned by callee.
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@param Count Return the count of segments.
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@retval A callee owned array holding the segment information.
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**/
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PCI_SEGMENT_INFO *
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GetPciSegmentInfo (
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UINTN *Count
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);
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#endif
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