1 /** @file
2
3 ACPI Memory mapped configuration space base address Description Table (MCFG).
4 Implementation based on PCI Firmware Specification Revision 3.0 final draft,
5 downloadable at http://www.pcisig.com/home
6
7 Copyright (c) 2014 - 2016, AMD Inc. All rights reserved.
8
9 This program and the accompanying materials are licensed and
10 made available under the terms and conditions of the BSD License
11 which accompanies this distribution. The full text of the
12 license may be found at http://opensource.org/licenses/bsd-license.php
13
14 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
15 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
16
17 **/
18
19 #include <AmdStyxAcpiLib.h>
20 #include <IndustryStandard/MemoryMappedConfigurationSpaceAccessTable.h>
21
22 #if STYX_A0
23 #define END_PCI_BUS_NUMBER 15
24 #else
25 #define END_PCI_BUS_NUMBER 255
26 #endif
27
28 #pragma pack(push, 1)
29
30 typedef struct {
31 EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER Header;
32 EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE Structure;
33 } EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_DESCRIPTION_TABLE;
34
35 EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_DESCRIPTION_TABLE AcpiMcfg = {
36 { AMD_ACPI_HEADER (EFI_ACPI_5_0_PCI_EXPRESS_MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ADDRESS_DESCRIPTION_TABLE_SIGNATURE,
37 EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_DESCRIPTION_TABLE,
38 EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_REVISION),
39 EFI_ACPI_RESERVED_QWORD },
40 { 0xF0000000ULL, 0, 0, END_PCI_BUS_NUMBER, EFI_ACPI_RESERVED_DWORD }
41 };
42
43 #pragma pack(pop)
44
45 EFI_ACPI_DESCRIPTION_HEADER *
McfgHeader(VOID)46 McfgHeader (
47 VOID
48 )
49 {
50 return &AcpiMcfg.Header.Header;
51 }
52