| 1 | /** @file
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| 2 | Include file of PciSegmentPciRootBridgeIo Library.
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| 3 |
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| 4 | Copyright (c) 2007 - 2009, Intel Corporation. All rights reserved.<BR>
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| 5 | This program and the accompanying materials are
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| 6 | licensed and made available under the terms and conditions of
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| 7 | the BSD License which accompanies this distribution. The full
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| 8 | text of the license may be found at
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| 9 | http://opensource.org/licenses/bsd-license.php.
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| 10 |
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| 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 13 |
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| 14 | **/
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| 15 |
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| 16 | #ifndef __DXE_PCI_SEGMENT_LIB__
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| 17 | #define __DXE_PCI_SEGMENT_LIB__
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| 18 |
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| 19 | #include <PiDxe.h>
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| 20 |
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| 21 | #include <Protocol/PciRootBridgeIo.h>
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| 22 |
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| 23 | #include <Library/PciSegmentLib.h>
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| 24 | #include <Library/BaseLib.h>
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| 25 | #include <Library/MemoryAllocationLib.h>
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| 26 | #include <Library/UefiBootServicesTableLib.h>
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| 27 | #include <Library/DebugLib.h>
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| 28 |
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| 29 | #include <IndustryStandard/Acpi.h>
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| 30 |
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| 31 | typedef struct {
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| 32 | EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
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| 33 | UINT32 SegmentNumber;
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| 34 | UINT64 MinBusNumber;
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| 35 | UINT64 MaxBusNumber;
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| 36 | } PCI_ROOT_BRIDGE_DATA;
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| 37 |
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| 38 | /**
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| 39 | Assert the validity of a PCI Segment address.
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| 40 | A valid PCI Segment address should not contain 1's in bits 28..31 and 48..63
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| 41 |
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| 42 | @param A The address to validate.
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| 43 | @param M Additional bits to assert to be zero.
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| 44 |
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| 45 | **/
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| 46 | #define ASSERT_INVALID_PCI_SEGMENT_ADDRESS(A,M) \
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| 47 | ASSERT (((A) & (0xffff0000f0000000ULL | (M))) == 0)
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| 48 |
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| 49 | /**
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| 50 | Translate PCI Lib address into format of PCI Root Bridge I/O Protocol
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| 51 |
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| 52 | @param A The address that encodes the PCI Bus, Device, Function and
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| 53 | Register.
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| 54 |
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| 55 | **/
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| 56 | #define PCI_TO_PCI_ROOT_BRIDGE_IO_ADDRESS(A) \
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| 57 | ((((UINT32)(A) << 4) & 0xff000000) | (((UINT32)(A) >> 4) & 0x00000700) | (((UINT32)(A) << 1) & 0x001f0000) | (LShiftU64((A) & 0xfff, 32)))
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| 58 |
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| 59 | #endif
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