ArmPlatformPkg/ArmJunoPkg/AcpiTables/Madt.aslc

   1 /** @file
   2 *  Multiple APIC Description Table (MADT)
   3 *
   4 *  Copyright (c) 2012 - 2015, ARM Limited. All rights reserved.
   5 *
   6 *  This program and the accompanying materials
   7 *  are licensed and made available under the terms and conditions of the BSD License
   8 *  which accompanies this distribution.  The full 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 #include "ArmPlatform.h"
  17 #include <Library/AcpiLib.h>
  18 #include <Library/ArmLib.h>
  19 #include <Library/PcdLib.h>
  20 #include <IndustryStandard/Acpi.h>
  21
  22 //
  23 // Multiple APIC Description Table
  24 //
  25 #ifdef ARM_JUNO_ACPI_5_0
  26   #pragma pack (1)
  27
  28   typedef struct {
  29     EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER   Header;
  30     EFI_ACPI_5_0_GIC_STRUCTURE                            GicInterfaces[FixedPcdGet32 (PcdCoreCount)];
  31     EFI_ACPI_5_0_GIC_DISTRIBUTOR_STRUCTURE                GicDistributor;
  32   } EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE;
  33
  34   #pragma pack ()
  35
  36   EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE Madt = {
  37     {
  38       ARM_ACPI_HEADER (
  39         EFI_ACPI_1_0_APIC_SIGNATURE,
  40         EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE,
  41         EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION
  42       ),
  43       //
  44       // MADT specific fields
  45       //
  46       0, // LocalApicAddress
  47       0, // Flags
  48     },
  49     {
  50       // Format: EFI_ACPI_5_0_GIC_STRUCTURE_INIT(GicId, AcpiCpuId, Flags, PmuIrq, GicBase)
  51       // Note: The GIC Structure of the primary CPU must be the first entry (see note in 5.2.12.14 GIC Structure of
  52       //       ACPI v5.0).
  53       //       On Juno we can change the primary CPU changing the SCC register. It is not currently supported in the
  54       //       Trusted Firmware. When supported, we will need to code to dynamically change the ordering.
  55       //       For now we leave CPU2 (A53-0) at the first position.
  56       //       The cores from a same cluster are kept together. It is not an ACPI requirement but in case the OSPM uses
  57       //       the ACPI ARM Parking protocol, it might want to wake up the cores in the order of this table.
  58       EFI_ACPI_5_0_GIC_STRUCTURE_INIT(2, 0, EFI_ACPI_5_0_GIC_ENABLED, 50, FixedPcdGet32 (PcdGicInterruptInterfaceBase)), // A53-0
  59       EFI_ACPI_5_0_GIC_STRUCTURE_INIT(3, 1, EFI_ACPI_5_0_GIC_ENABLED, 54, FixedPcdGet32 (PcdGicInterruptInterfaceBase)), // A53-1
  60       EFI_ACPI_5_0_GIC_STRUCTURE_INIT(4, 2, EFI_ACPI_5_0_GIC_ENABLED, 58, FixedPcdGet32 (PcdGicInterruptInterfaceBase)), // A53-2
  61       EFI_ACPI_5_0_GIC_STRUCTURE_INIT(5, 3, EFI_ACPI_5_0_GIC_ENABLED, 62, FixedPcdGet32 (PcdGicInterruptInterfaceBase)), // A53-3
  62       EFI_ACPI_5_0_GIC_STRUCTURE_INIT(0, 4, EFI_ACPI_5_0_GIC_ENABLED, 34, FixedPcdGet32 (PcdGicInterruptInterfaceBase)), // A57-0
  63       EFI_ACPI_5_0_GIC_STRUCTURE_INIT(1, 5, EFI_ACPI_5_0_GIC_ENABLED, 38, FixedPcdGet32 (PcdGicInterruptInterfaceBase))  // A57-1
  64     },
  65     EFI_ACPI_5_0_GIC_DISTRIBUTOR_INIT(0, FixedPcdGet32 (PcdGicDistributorBase), 0)
  66   };
  67 #else
  68   #pragma pack (1)
  69
  70   typedef struct {
  71     EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER   Header;
  72     EFI_ACPI_5_1_GIC_STRUCTURE                            GicInterfaces[FixedPcdGet32 (PcdCoreCount)];
  73     EFI_ACPI_5_0_GIC_DISTRIBUTOR_STRUCTURE                GicDistributor;
  74   } EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE;
  75
  76   #pragma pack ()
  77
  78   EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE Madt = {
  79     {
  80       ARM_ACPI_HEADER (
  81         EFI_ACPI_1_0_APIC_SIGNATURE,
  82         EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE,
  83         EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION
  84       ),
  85       //
  86       // MADT specific fields
  87       //
  88       0, // LocalApicAddress
  89       0, // Flags
  90     },
  91     {
  92       // Format: EFI_ACPI_5_1_GICC_STRUCTURE_INIT(GicId, AcpiCpuUid, Flags, PmuIrq, GicBase, GicVBase, GicHBase,
  93       //                                          GsivId, GicRBase, Mpidr)
  94       // Note: The GIC Structure of the primary CPU must be the first entry (see note in 5.2.12.14 GICC Structure of
  95       //       ACPI v5.1).
  96       //       On Juno we can change the primary CPU changing the SCC register. It is not currently supported in the
  97       //       Trusted Firmware. When supported, we will need to code to dynamically change the ordering.
  98       //       For now we leave CPU2 (A53-0) at the first position.
  99       //       The cores from a same cluster are kept together. It is not an ACPI requirement but in case the OSPM uses
 100       //       the ACPI ARM Parking protocol, it might want to wake up the cores in the order of this table.
 101       EFI_ACPI_5_1_GICC_STRUCTURE_INIT( // A53-0
 102           2, 0, GET_MPID(1, 0), EFI_ACPI_5_0_GIC_ENABLED, 50, FixedPcdGet32 (PcdGicInterruptInterfaceBase),
 103           0x2C06F000, 0x2C04F000, 25, 0 /* GicRBase */),
 104       EFI_ACPI_5_1_GICC_STRUCTURE_INIT( // A53-1
 105           3, 1, GET_MPID(1, 1),  EFI_ACPI_5_0_GIC_ENABLED, 54, FixedPcdGet32 (PcdGicInterruptInterfaceBase),
 106           0x2C06F000, 0x2C04F000, 25, 0 /* GicRBase */),
 107       EFI_ACPI_5_1_GICC_STRUCTURE_INIT( // A53-2
 108           4, 2, GET_MPID(1, 2),  EFI_ACPI_5_0_GIC_ENABLED, 58, FixedPcdGet32 (PcdGicInterruptInterfaceBase),
 109           0x2C06F000, 0x2C04F000, 25, 0 /* GicRBase */),
 110       EFI_ACPI_5_1_GICC_STRUCTURE_INIT( // A53-3
 111           5, 3, GET_MPID(1, 3),  EFI_ACPI_5_0_GIC_ENABLED, 62, FixedPcdGet32 (PcdGicInterruptInterfaceBase),
 112           0x2C06F000, 0x2C04F000, 25, 0 /* GicRBase */),
 113       EFI_ACPI_5_1_GICC_STRUCTURE_INIT( // A57-0
 114           0, 4, GET_MPID(0, 0),  EFI_ACPI_5_0_GIC_ENABLED, 34, FixedPcdGet32 (PcdGicInterruptInterfaceBase),
 115           0x2C06F000, 0x2C04F000, 25, 0 /* GicRBase */),
 116       EFI_ACPI_5_1_GICC_STRUCTURE_INIT( // A57-1
 117           1, 5, GET_MPID(0, 1),  EFI_ACPI_5_0_GIC_ENABLED, 38, FixedPcdGet32 (PcdGicInterruptInterfaceBase),
 118           0x2C06F000, 0x2C04F000, 25, 0 /* GicRBase */),
 119     },
 120     EFI_ACPI_5_0_GIC_DISTRIBUTOR_INIT(0, FixedPcdGet32 (PcdGicDistributorBase), 0)
 121   };
 122 #endif
 123
 124 VOID*
 125 ReferenceAcpiTable (
 126   VOID
 127   )
 128 {
 129   //
 130   // Reference the table being generated to prevent the optimizer from removing the
 131   // data structure from the executable
 132   //
 133   return (VOID*)&Madt;
 134 }