1 /** @file 2 Include file of PciSegmentPciRootBridgeIo Library. 3 4 Copyright (c) 2007 - 2009, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials are 6 licensed and made available under the terms and conditions of 7 the BSD License which accompanies this distribution. The full 8 text of the license may be found at 9 http://opensource.org/licenses/bsd-license.php. 10 11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 13 14 **/ 15 16 #ifndef __DXE_PCI_SEGMENT_LIB__ 17 #define __DXE_PCI_SEGMENT_LIB__ 18 19 #include <PiDxe.h> 20 21 #include <Protocol/PciRootBridgeIo.h> 22 23 #include <Library/PciSegmentLib.h> 24 #include <Library/BaseLib.h> 25 #include <Library/MemoryAllocationLib.h> 26 #include <Library/UefiBootServicesTableLib.h> 27 #include <Library/DebugLib.h> 28 29 #include <IndustryStandard/Acpi.h> 30 31 typedef struct { 32 EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo; 33 UINT32 SegmentNumber; 34 UINT64 MinBusNumber; 35 UINT64 MaxBusNumber; 36 } PCI_ROOT_BRIDGE_DATA; 37 38 /** 39 Assert the validity of a PCI Segment address. 40 A valid PCI Segment address should not contain 1's in bits 28..31 and 48..63 41 42 @param A The address to validate. 43 @param M Additional bits to assert to be zero. 44 45 **/ 46 #define ASSERT_INVALID_PCI_SEGMENT_ADDRESS(A,M) \ 47 ASSERT (((A) & (0xffff0000f0000000ULL | (M))) == 0) 48 49 /** 50 Translate PCI Lib address into format of PCI Root Bridge I/O Protocol 51 52 @param A The address that encodes the PCI Bus, Device, Function and 53 Register. 54 55 **/ 56 #define PCI_TO_PCI_ROOT_BRIDGE_IO_ADDRESS(A) \ 57 ((((UINT32)(A) << 4) & 0xff000000) | (((UINT32)(A) >> 4) & 0x00000700) | (((UINT32)(A) << 1) & 0x001f0000) | (LShiftU64((A) & 0xfff, 32))) 58 59 #endif 60
