/** @file
*  I/O Remapping Table (Iort)
*
*  Copyright (c) 2018, ARM Ltd. All rights reserved.
*
*  SPDX-License-Identifier: BSD-2-Clause-Patent
*
**/

#include <IndustryStandard/Acpi.h>
#include <IndustryStandard/Acpi62.h>
#include <IndustryStandard/IoRemappingTable.h>
#include "SgiAcpiHeader.h"

#pragma pack(1)

typedef struct
{
  EFI_ACPI_6_0_IO_REMAPPING_ITS_NODE       ItsNode;
  UINT32                                   ItsIdentifiers;
} ARM_EFI_ACPI_6_0_IO_REMAPPING_ITS_NODE;

typedef struct
{
  EFI_ACPI_6_0_IO_REMAPPING_SMMU3_NODE     SmmuNode;
  EFI_ACPI_6_0_IO_REMAPPING_ID_TABLE       SmmuIdMap[2];
} ARM_EFI_ACPI_6_0_IO_REMAPPING_SMMU3_NODE;

typedef struct
{
  EFI_ACPI_6_0_IO_REMAPPING_RC_NODE        RcNode;
  EFI_ACPI_6_0_IO_REMAPPING_ID_TABLE       RcIdMap;
} ARM_EFI_ACPI_6_0_IO_REMAPPING_RC_NODE;

typedef struct
{
  EFI_ACPI_6_0_IO_REMAPPING_TABLE          Header;
  ARM_EFI_ACPI_6_0_IO_REMAPPING_ITS_NODE   ItsNode;
  ARM_EFI_ACPI_6_0_IO_REMAPPING_SMMU3_NODE SmmuNode;
  ARM_EFI_ACPI_6_0_IO_REMAPPING_RC_NODE    RcNode;
} ARM_EFI_ACPI_6_0_IO_REMAPPING_TABLE;

#pragma pack ()

ARM_EFI_ACPI_6_0_IO_REMAPPING_TABLE Iort =
{
  // EFI_ACPI_6_0_IO_REMAPPING_TABLE
  {
     ARM_ACPI_HEADER  // EFI_ACPI_DESCRIPTION_HEADER
     (
       EFI_ACPI_6_2_IO_REMAPPING_TABLE_SIGNATURE,
       ARM_EFI_ACPI_6_0_IO_REMAPPING_TABLE,
       EFI_ACPI_IO_REMAPPING_TABLE_REVISION
     ),
     3,  // NumNodes
     sizeof (EFI_ACPI_6_0_IO_REMAPPING_TABLE),  // NodeOffset
     0,  // Reserved
  },
  // ARM_EFI_ACPI_6_0_IO_REMAPPING_ITS_NODE
  {
    // EFI_ACPI_6_0_IO_REMAPPING_ITS_NODE
    {
      // EFI_ACPI_6_0_IO_REMAPPING_NODE
      {
        EFI_ACPI_IORT_TYPE_ITS_GROUP,  // Type
        sizeof (ARM_EFI_ACPI_6_0_IO_REMAPPING_ITS_NODE), // Length
        0,  // Revision
        0,  // Reserved
        0,  // NumIdMappings
        0,  // IdReference
      },
      1,    // ITS count
    },
    0,      // GIC ITS Identifiers
  },
  // SMMU
  {
    // EFI_ACPI_6_0_IO_REMAPPING_SMMU3_NODE
    {
      // EFI_ACPI_6_0_IO_REMAPPING_NODE
      {
        EFI_ACPI_IORT_TYPE_SMMUv3, // Type
        sizeof (ARM_EFI_ACPI_6_0_IO_REMAPPING_SMMU3_NODE), // Length
        2, // Revision
        0, // Reserved
        2, // NumIdMapping
        OFFSET_OF (ARM_EFI_ACPI_6_0_IO_REMAPPING_SMMU3_NODE, SmmuIdMap), // IdReference
      },
      0x4F000000, // Base address
      EFI_ACPI_IORT_SMMUv3_FLAG_COHAC_OVERRIDE, // Flags
      0,   // Reserved
      0,   // VATOS address
      EFI_ACPI_IORT_SMMUv3_MODEL_GENERIC, // SMMUv3 Model
      260, // Event
      0,   // Pri
      262, // Gerror
      261, // Sync
      0,   // Proximity domain
      1,   // DevIDMappingIndex
    },
    // EFI_ACPI_6_0_IO_REMAPPING_ID_TABLE
    {
      {
        0x0000, // InputBase
        0xffff, // NumIds
        0x0000, // OutputBase
        OFFSET_OF (ARM_EFI_ACPI_6_0_IO_REMAPPING_TABLE, ItsNode), // OutputReference
        0, // Flags
      },
      {
        0x0,     // InputBase
        0x1,     // NumIds
        0x10000, // OutputBase
        OFFSET_OF (ARM_EFI_ACPI_6_0_IO_REMAPPING_TABLE, ItsNode), // OutputReference
        EFI_ACPI_IORT_ID_MAPPING_FLAGS_SINGLE, // Flags
      },
    },
  },
  // ARM_EFI_ACPI_6_0_IO_REMAPPING_RC_NODE
  {
    // EFI_ACPI_6_0_IO_REMAPPING_RC_NODE
    {
      // EFI_ACPI_6_0_IO_REMAPPING_NODE
      {
        EFI_ACPI_IORT_TYPE_ROOT_COMPLEX,  // Type
        sizeof (ARM_EFI_ACPI_6_0_IO_REMAPPING_RC_NODE),  // Length
        0,  // Revision
        0,  // Reserved
        1,  // NumIdMappings
        OFFSET_OF (ARM_EFI_ACPI_6_0_IO_REMAPPING_RC_NODE, RcIdMap)  // IdReference
      },
      1,  // CacheCoherent
      0,  // AllocationHints
      0,  // Reserved
      0,  // MemoryAccessFlags
      EFI_ACPI_IORT_ROOT_COMPLEX_ATS_SUPPORTED,    // AtsAttribute
      0x0,                                         // PciSegmentNumber
    },
    // EFI_ACPI_6_0_IO_REMAPPING_ID_TABLE
    {
      0x0000,  // InputBase
      0xffff,  // NumIds
      0x0000,  // OutputBase
      OFFSET_OF (ARM_EFI_ACPI_6_0_IO_REMAPPING_TABLE, SmmuNode),  // OutputReference
      0,       // Flags
    }
  }
};

VOID* CONST ReferenceAcpiTable = &Iort;