[PATCH edk2-platforms v4 9/9] Platform/ARM/Sgi: Add Ssdt, Iort and Mcfg tables

[Thomas Abraham <thomas.abraham@arm.com>]

SGI platforms support a AHCI controller which is attached to a PCIe
root complex and it can generate PCIe ITS-MSI transactions. So the
Ssdt, Iort and Mcfg ACPI tables to desribe this topology to the
linux kernel.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Thomas Abraham <thomas.abraham@arm.com>
---
 .../ARM/SgiPkg/AcpiTables/Sgi575/AcpiTables.inf    |   5 +
 Platform/ARM/SgiPkg/AcpiTables/Sgi575/Iort.aslc    | 106 +++++++++++++++++++++
 Platform/ARM/SgiPkg/AcpiTables/Sgi575/Mcfg.aslc    |  59 ++++++++++++
 Platform/ARM/SgiPkg/AcpiTables/Sgi575/Ssdt.asl     |  91 ++++++++++++++++++
 4 files changed, 261 insertions(+)
 create mode 100644 Platform/ARM/SgiPkg/AcpiTables/Sgi575/Iort.aslc
 create mode 100644 Platform/ARM/SgiPkg/AcpiTables/Sgi575/Mcfg.aslc
 create mode 100644 Platform/ARM/SgiPkg/AcpiTables/Sgi575/Ssdt.asl

diff --git a/Platform/ARM/SgiPkg/AcpiTables/Sgi575/AcpiTables.inf b/Platform/ARM/SgiPkg/AcpiTables/Sgi575/AcpiTables.inf
index 2c9bd98..485f819 100644
--- a/Platform/ARM/SgiPkg/AcpiTables/Sgi575/AcpiTables.inf
+++ b/Platform/ARM/SgiPkg/AcpiTables/Sgi575/AcpiTables.inf
@@ -25,8 +25,11 @@
   Dsdt.asl
   Fadt.aslc
   Gtdt.aslc
+  Iort.aslc
   Madt.aslc
+  Mcfg.aslc
   Spcr.aslc
+  Ssdt.asl
 
 [Packages]
   ArmPkg/ArmPkg.dec
@@ -51,3 +54,5 @@
   gArmTokenSpaceGuid.PcdGenericWatchdogRefreshBase
   gArmPlatformTokenSpaceGuid.PcdSerialDbgRegisterBase
   gArmPlatformTokenSpaceGuid.PL011UartInterrupt
+
+  gArmSgiTokenSpaceGuid.PcdPciConfigurationSpaceBaseAddress
diff --git a/Platform/ARM/SgiPkg/AcpiTables/Sgi575/Iort.aslc b/Platform/ARM/SgiPkg/AcpiTables/Sgi575/Iort.aslc
new file mode 100644
index 0000000..f3b3105
--- /dev/null
+++ b/Platform/ARM/SgiPkg/AcpiTables/Sgi575/Iort.aslc
@@ -0,0 +1,106 @@
+/** @file
+*  I/O Remapping Table (Iort)
+*
+*  Copyright (c) 2018, ARM Ltd. All rights reserved.
+*
+*  This program and the accompanying materials are licensed and made available
+*  under the terms and conditions of the BSD License which accompanies this
+*  distribution.  The full text of the license may be found at
+*  http://opensource.org/licenses/bsd-license.php
+*
+*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#include <IndustryStandard/Acpi.h>
+#include <IndustryStandard/Acpi60.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_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_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_0_IO_REMAPPING_TABLE_SIGNATURE,
+       ARM_EFI_ACPI_6_0_IO_REMAPPING_TABLE,
+       EFI_ACPI_IO_REMAPPING_TABLE_REVISION
+     ),
+     2,  // 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,    // GIC ITS Identifiers
+    },
+    0,
+  },
+  // 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
+        __builtin_offsetof (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_UNSUPPORTED,  // AtsAttribute
+      0x0,                                         // PciSegmentNumber
+    },
+    // EFI_ACPI_6_0_IO_REMAPPING_ID_TABLE
+    {
+      0x0038,  // InputBase
+      0x0001,  // NumIds
+      0x0038,  // OutputBase
+      __builtin_offsetof (ARM_EFI_ACPI_6_0_IO_REMAPPING_TABLE, ItsNode),  // OutputReference
+      0,  // Flags
+    }
+  }
+};
+
+VOID* CONST ReferenceAcpiTable = &Iort;
diff --git a/Platform/ARM/SgiPkg/AcpiTables/Sgi575/Mcfg.aslc b/Platform/ARM/SgiPkg/AcpiTables/Sgi575/Mcfg.aslc
new file mode 100644
index 0000000..22a1018
--- /dev/null
+++ b/Platform/ARM/SgiPkg/AcpiTables/Sgi575/Mcfg.aslc
@@ -0,0 +1,59 @@
+/** @file
+*  Memory mapped configuration space base address description table (MCFG)
+*
+*  Copyright (c) 2018, ARM Ltd. All rights reserved.
+*
+*  This program and the accompanying materials are licensed and made available
+*  under the terms and conditions of the BSD License which accompanies this
+*  distribution.  The full text of the license may be found at
+*  http://opensource.org/licenses/bsd-license.php
+*
+*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#include <IndustryStandard/Acpi61.h>
+#include <IndustryStandard/MemoryMappedConfigurationSpaceAccessTable.h>
+#include <Library/PcdLib.h>
+#include "SgiAcpiHeader.h"
+#include "SgiPlatform.h"
+
+#include <Library/AcpiLib.h>
+#include <Library/ArmLib.h>
+#include <IndustryStandard/Acpi.h>
+
+#pragma pack(1)
+typedef struct
+{
+  EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER Header;
+  EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE Structure[1];
+} EFI_ACPI_PCI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_DESCRIPTION_TABLE;
+#pragma pack()
+
+EFI_ACPI_PCI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_DESCRIPTION_TABLE Mcfg = {
+  {
+    ARM_ACPI_HEADER (
+      EFI_ACPI_6_0_PCI_EXPRESS_MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ADDRESS_DESCRIPTION_TABLE_SIGNATURE,
+      EFI_ACPI_PCI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_DESCRIPTION_TABLE,
+      EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_REVISION
+    ),
+    EFI_ACPI_RESERVED_QWORD,  //Reserved
+  },
+  {
+    // PCIe ECAM
+    {
+      FixedPcdGet32 (PcdPciConfigurationSpaceBaseAddress),  // Base Address
+      0x0,                                                  // Segment Group Number
+      0x0,                                                  // Start Bus Number
+      0xff,                                                 // End Bus Number
+      0x00000000,                                           // Reserved
+    }
+  }
+};
+
+//
+// Reference the table being generated to prevent the optimizer from removing the
+// data structure from the executable
+//
+VOID* CONST ReferenceAcpiTable = &Mcfg;
diff --git a/Platform/ARM/SgiPkg/AcpiTables/Sgi575/Ssdt.asl b/Platform/ARM/SgiPkg/AcpiTables/Sgi575/Ssdt.asl
new file mode 100644
index 0000000..bd418c7
--- /dev/null
+++ b/Platform/ARM/SgiPkg/AcpiTables/Sgi575/Ssdt.asl
@@ -0,0 +1,91 @@
+/** @file
+*  Secondary System Description Table (SSDT)
+*
+*  Copyright (c) 2018, ARM Limited. All rights reserved.
+*
+*  This program and the accompanying materials are licensed and made available
+*  under the terms and conditions of the BSD License which accompanies this
+*  distribution.  The full text of the license may be found at
+*  http://opensource.org/licenses/bsd-license.php
+*
+*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#include "SgiAcpiHeader.h"
+
+DefinitionBlock("SsdtPci.aml", "SSDT", 1, "ARMLTD", "ARM-SGI575",
+                EFI_ACPI_ARM_OEM_REVISION)
+{
+  Scope (_SB) {
+    // PCI Root Complex
+    Device(PCI0) {
+      Name (_HID, EISAID("PNP0A08")) // PCI Express Root Bridge
+      Name (_CID, EISAID("PNP0A03")) // Compatible PCI Root Bridge
+      Name (_SEG, Zero)              // PCI Segment Group number
+      Name (_BBN, Zero)              // PCI Base Bus Number
+      Name (_CCA, 1)                 // Cache Coherency Attribute
+
+      // Root complex resources
+      Method (_CRS, 0, Serialized) {
+        Name (RBUF, ResourceTemplate () {
+          WordBusNumber (      // Bus numbers assigned to this root
+            ResourceProducer,
+            MinFixed,
+            MaxFixed,
+            PosDecode,
+            0,                 // AddressGranularity
+            0,                 // AddressMinimum - Minimum Bus Number
+            255,               // AddressMaximum - Maximum Bus Number
+            0,                 // AddressTranslation - Set to 0
+            256                // RangeLength - Number of Busses
+          )
+
+          DWordMemory (        // 32-bit BAR Windows
+            ResourceProducer,
+            PosDecode,
+            MinFixed,
+            MaxFixed,
+            Cacheable,
+            ReadWrite,
+            0x00000000,        // Granularity
+            0x70000000,        // Min Base Address
+            0x777FFFFF,        // Max Base Address
+            0x00000000,        // Translate
+            0x07800000         // Length
+          )
+
+          QWordMemory (        // 64-bit BAR Windows
+            ResourceProducer,
+            PosDecode,
+            MinFixed,
+            MaxFixed,
+            Cacheable,
+            ReadWrite,
+            0x00000000,        // Granularity
+            0x500000000,       // Min Base Address
+            0x7FFFFFFFF,       // Max Base Address
+            0x00000000,        // Translate
+            0x300000000        // Length
+          )
+
+          DWordIo (             // IO window
+            ResourceProducer,
+            MinFixed,
+            MaxFixed,
+            PosDecode,
+            EntireRange,
+            0x00000000,         // Granularity
+            0x00000000,         // Min Base Address
+            0x007FFFFF,         // Max Base Address
+            0x77800000,         // Translate
+            0x00800000          // Length
+          )
+        }) // Name(RBUF)
+
+        Return (RBUF)
+      } // Method (_CRS)
+    }
+  }
+}
-- 
2.7.4