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hc

2024-03-25 edb30157bad0c0001c32b854271ace01d3b9a16a

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/** @file 
  This code defines ACPI DMA Remapping table related definitions. 
  See the System Agent BIOS specification for definition of the table. 
 
  Copyright (c) 2021, Intel Corporation. All rights reserved.<BR> 
  SPDX-License-Identifier: BSD-2-Clause-Patent 
**/ 
#ifndef _DMA_REMAPPING_TABLE_H_ 
#define _DMA_REMAPPING_TABLE_H_ 
 
#include <Uefi.h> 
#include <Base.h> 
#include <IndustryStandard/DmaRemappingReportingTable.h> 
#include <IndustryStandard/Acpi.h> 
#include <TcssInfo.h> 
 
#pragma pack(1) 
/// 
/// DMAR table signature 
/// 
#define EFI_ACPI_VTD_DMAR_TABLE_SIGNATURE   0x52414D44  ///< "DMAR" 
#define EFI_ACPI_DMAR_TABLE_REVISION        2 
#define EFI_ACPI_DRHD_ENGINE_HEADER_LENGTH  0x10 
#define EFI_ACPI_RMRR_HEADER_LENGTH         0x18 
#define MAX_PCI_DEPTH                       5 
 
typedef struct { 
  EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER DeviceScopeStructureHeader; 
  EFI_ACPI_DMAR_PCI_PATH                      PciPath;     // device, function 
} EFI_ACPI_DEV_SCOPE_STRUCTURE; 
 
typedef struct { 
  EFI_ACPI_DMAR_DRHD_HEADER     DrhdHeader; 
  EFI_ACPI_DEV_SCOPE_STRUCTURE  DeviceScope[1]; 
} EFI_ACPI_DRHD_ENGINE1_STRUCT; 
 
typedef struct { 
  EFI_ACPI_DMAR_DRHD_HEADER     DrhdHeader; 
  // 
  // @todo use PCD 
  // 
  EFI_ACPI_DEV_SCOPE_STRUCTURE  DeviceScope[2]; 
} EFI_ACPI_DRHD_ENGINE3_STRUCT; 
 
typedef struct { 
  EFI_ACPI_DMAR_RMRR_HEADER     RmrrHeader; 
  EFI_ACPI_DEV_SCOPE_STRUCTURE  DeviceScope[2]; 
} EFI_ACPI_RMRR_USB_STRUC; 
 
typedef struct { 
  EFI_ACPI_DMAR_RMRR_HEADER     RmrrHeader; 
  EFI_ACPI_DEV_SCOPE_STRUCTURE  DeviceScope[1];    // IGD 
} EFI_ACPI_RMRR_IGD_STRUC; 
 
typedef struct { 
  EFI_ACPI_DMAR_RMRR_HEADER     RmrrHeader; 
  EFI_ACPI_DEV_SCOPE_STRUCTURE  DeviceScope[1];    // IGD - DiSM 
} EFI_ACPI_RMRR_IGD_DISM_STRUC; 
 
typedef struct { 
  EFI_ACPI_DMAR_ANDD_HEADER     AnddHeader; 
  UINT8                         AcpiObjectName[20]; 
} EFI_ACPI_ANDD_STRUC; 
 
typedef struct { 
  EFI_ACPI_DMAR_HEADER          DmarHeader; 
  EFI_ACPI_DRHD_ENGINE1_STRUCT  DrhdEngine1; 
  EFI_ACPI_DRHD_ENGINE3_STRUCT  DrhdEngine3; 
  EFI_ACPI_RMRR_IGD_STRUC       RmrrIgd; 
  EFI_ACPI_RMRR_IGD_DISM_STRUC  RmrrIgdDism; 
} EFI_ACPI_DMAR_TABLE; 
 
#pragma pack() 
 
#endif