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 * 46 McfgHeader ( 47 VOID 48 ) 49 { 50 return &AcpiMcfg.Header.Header; 51 } 52
