[edk2-devel] [edk2-platforms][PATCH V1 6/6] Platform/Sgi: add IORT table for IO virtualization block on RD-N2

[Vivek Kumar Gautam]

Arm reference design RD-N2 platform has multiple I/O virtualization
blocks that allow connecting PCIe root bus or non-PCIe devices to
the system. Each of the I/O virtualization blocks (IoVirtBlk)
consists of an Arm SMMUv3 compliant MMU-700 controller to handle
address translations and a GIC-700 Interrupt Translation Service
(ITS) to support message signaled interrupts (MSIs).

Add an IORT table for non-discoverable (non-PCIe) devices connected
to one of the I/O virtualization blocks - IoVirtBlk #4 on RD-N2. In
addition to SMMUv3 and ITS nodes, two Named Compoenent nodes are
also added for PL330 DMA controllers connected to IoVirtBlk #4.

While we are adding the IORT table entries for RD-N2 platform, remove
the source file entries for incorrect IORT table.

Signed-off-by: Vivek Gautam <vivek.gautam at arm.com>
---
 Platform/ARM/SgiPkg/AcpiTables/RdN2AcpiTables.inf            | 13 ++++-
 Platform/ARM/SgiPkg/AcpiTables/RdN2/IortNonPciIoVirtBlk.aslc | 58 ++++++++++++++++++++
 2 files changed, 70 insertions(+), 1 deletion(-)

diff --git a/Platform/ARM/SgiPkg/AcpiTables/RdN2AcpiTables.inf b/Platform/ARM/SgiPkg/AcpiTables/RdN2AcpiTables.inf
index fe50a7b6e44a..efcd2ce48256 100644
--- a/Platform/ARM/SgiPkg/AcpiTables/RdN2AcpiTables.inf
+++ b/Platform/ARM/SgiPkg/AcpiTables/RdN2AcpiTables.inf
@@ -18,8 +18,8 @@
   Dbg2.aslc
   Fadt.aslc
   Gtdt.aslc
-  Iort.aslc
   RdN2/Dsdt.asl
+  RdN2/IortNonPciIoVirtBlk.aslc
   RdN2/Madt.aslc
   RdN2/Pptt.aslc
   Spcr.aslc
@@ -58,6 +58,12 @@
   gArmSgiTokenSpaceGuid.PcdGtFrame1Gsiv
   gArmSgiTokenSpaceGuid.PcdOscLpiEnable
   gArmSgiTokenSpaceGuid.PcdOscCppcEnable
+  gArmSgiTokenSpaceGuid.PcdSmmuBase
+  gArmSgiTokenSpaceGuid.PcdSmmuEventGsiv
+  gArmSgiTokenSpaceGuid.PcdSmmuGErrorGsiv
+  gArmSgiTokenSpaceGuid.PcdSmmuPriGsiv
+  gArmSgiTokenSpaceGuid.PcdSmmuSyncGsiv
+  gArmSgiTokenSpaceGuid.PcdSmmuDevIDBase
   gArmSgiTokenSpaceGuid.PcdSp804DualTimerBaseAddress
   gArmSgiTokenSpaceGuid.PcdSp804DualTimerSize
   gArmSgiTokenSpaceGuid.PcdSp804DualTimerInterrupt
@@ -70,6 +76,11 @@
   gArmSgiTokenSpaceGuid.PcdWdogWS0Gsiv
   gArmSgiTokenSpaceGuid.PcdWdogWS1Gsiv
 
+  gArmSgiTokenSpaceGuid.PcdPciex16DevIDBase
+  gArmSgiTokenSpaceGuid.PcdPciex8DevIDBase
+  gArmSgiTokenSpaceGuid.PcdPciex41DevIDBase
+  gArmSgiTokenSpaceGuid.PcdPciex40DevIDBase
+
   gArmSgiTokenSpaceGuid.PcdIoVirtBlkUart0Base
   gArmSgiTokenSpaceGuid.PcdIoVirtBlkUart0End
   gArmSgiTokenSpaceGuid.PcdIoVirtBlkUart0Size
diff --git a/Platform/ARM/SgiPkg/AcpiTables/RdN2/IortNonPciIoVirtBlk.aslc b/Platform/ARM/SgiPkg/AcpiTables/RdN2/IortNonPciIoVirtBlk.aslc
new file mode 100644
index 000000000000..84f482d36cba
--- /dev/null
+++ b/Platform/ARM/SgiPkg/AcpiTables/RdN2/IortNonPciIoVirtBlk.aslc
@@ -0,0 +1,58 @@
+/** @file
+  I/O Remapping Table (IORT) for RD-N2 platform.
+
+  This file presents the I/O Remapping Table for Non-PCIe I/O
+  virtualization block present on RD-N2 platform that connects
+  non-discoverable (non-PCIe) devices.
+  I/O virtualization blocks are combination of SMMUv3, GIC ITS,
+  a local interconnect and Root-Ports to connect PCIe or non-PCIe
+  devices.
+
+  Copyright (c) 2022, Arm Ltd. All rights reserved.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+  @par Specification Reference:
+    - IORT specification version E.b
+**/
+
+#include "SgiAcpiHeader.h"
+
+#pragma pack(1)
+
+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_DMA_NC_NODE    DmaNode[2];
+} 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
+     ),
+     4,  // NumNodes
+     sizeof (EFI_ACPI_6_0_IO_REMAPPING_TABLE),  // NodeOffset
+     0,  // Reserved
+  },
+
+  EFI_ACPI_ITS_INIT(4),
+
+  EFI_ACPI_SMMUv3_INIT(4),
+
+  // DMA Named Component nodes - DMA0 & DMA1
+  {
+    EFI_ACPI_DMA_NC_INIT(0, "\\_SB_.DMA0"),
+    EFI_ACPI_DMA_NC_INIT(1, "\\_SB_.DMA1"),
+  },
+};
+
+VOID* CONST ReferenceAcpiTable = &Iort;
-- 
2.17.1



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