[edk2-devel] [PATCH edk2-platforms v1 1/2] Platform/SbsaQemu: add GIC ITS support
Marcin Juszkiewicz
marcin.juszkiewicz at linaro.org
Wed Jun 28 16:08:09 UTC 2023
From: Shashi Mallela <shashi.mallela at linaro.org>
SBSA Reference Platform has GIC ITS support. Let make use of it.
Base address is read from TF-A via SMC call.
GIC ITS allows us to have complex PCI Express setups.
Co-authored-by: Marcin Juszkiewicz <marcin.juszkiewicz at linaro.org>
Signed-off-by: Shashi Mallela <shashi.mallela at linaro.org>
Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz at linaro.org>
---
Silicon/Qemu/SbsaQemu/SbsaQemu.dec | 3 +
Platform/Qemu/SbsaQemu/SbsaQemu.dsc | 3 +
.../Qemu/SbsaQemu/AcpiTables/AcpiTables.inf | 2 +
.../SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf | 1 +
.../SbsaQemuPlatformDxe.inf | 1 +
.../Include/IndustryStandard/SbsaQemuAcpi.h | 11 ++
.../Include/IndustryStandard/SbsaQemuSmc.h | 1 +
.../Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c | 12 +-
.../SbsaQemuPlatformDxe/SbsaQemuPlatformDxe.c | 10 ++
Silicon/Qemu/SbsaQemu/AcpiTables/Iort.aslc | 135 ++++++++++++++++++
10 files changed, 178 insertions(+), 1 deletion(-)
create mode 100644 Silicon/Qemu/SbsaQemu/AcpiTables/Iort.aslc
diff --git a/Silicon/Qemu/SbsaQemu/SbsaQemu.dec b/Silicon/Qemu/SbsaQemu/SbsaQemu.dec
index 5182978cf56d..ff2a4721a131 100644
--- a/Silicon/Qemu/SbsaQemu/SbsaQemu.dec
+++ b/Silicon/Qemu/SbsaQemu/SbsaQemu.dec
@@ -70,3 +70,6 @@ [PcdsDynamic.common]
gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdPlatformVersionMajor|0x0|UINT32|0x0000011E
gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdPlatformVersionMinor|0x0|UINT32|0x0000011F
+
+ # ARM Generic Interrupt Controller ITS
+ gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdGicItsBase|0|UINT64|0x00000120
diff --git a/Platform/Qemu/SbsaQemu/SbsaQemu.dsc b/Platform/Qemu/SbsaQemu/SbsaQemu.dsc
index b88729ad8ad6..4ae2479628b6 100644
--- a/Platform/Qemu/SbsaQemu/SbsaQemu.dsc
+++ b/Platform/Qemu/SbsaQemu/SbsaQemu.dsc
@@ -523,6 +523,9 @@ [PcdsDynamicDefault.common]
gArmTokenSpaceGuid.PcdGicDistributorBase|0x40060000
gArmTokenSpaceGuid.PcdGicRedistributorsBase|0x40080000
+ # GIC ITS
+ gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdGicItsBase|0
+
#
# Set video resolution for boot options
# PlatformDxe can set the former at runtime.
diff --git a/Silicon/Qemu/SbsaQemu/AcpiTables/AcpiTables.inf b/Silicon/Qemu/SbsaQemu/AcpiTables/AcpiTables.inf
index 0501c670d565..554c5e4b6f9e 100644
--- a/Silicon/Qemu/SbsaQemu/AcpiTables/AcpiTables.inf
+++ b/Silicon/Qemu/SbsaQemu/AcpiTables/AcpiTables.inf
@@ -22,6 +22,7 @@ [Sources]
Gtdt.aslc
Mcfg.aslc
Spcr.aslc
+ Iort.aslc
[Packages]
ArmPlatformPkg/ArmPlatformPkg.dec
@@ -75,3 +76,4 @@ [FixedPcd]
[Pcd]
gArmTokenSpaceGuid.PcdGicDistributorBase
gArmTokenSpaceGuid.PcdGicRedistributorsBase
+ gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdGicItsBase
diff --git a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf
index c1c33788567d..3ec7ffd8dd5c 100644
--- a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf
+++ b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf
@@ -48,6 +48,7 @@ [Pcd]
gArmTokenSpaceGuid.PcdGicDistributorBase
gArmTokenSpaceGuid.PcdGicRedistributorsBase
+ gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdGicItsBase
[Depex]
gEfiAcpiTableProtocolGuid ## CONSUMES
diff --git a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuPlatformDxe/SbsaQemuPlatformDxe.inf b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuPlatformDxe/SbsaQemuPlatformDxe.inf
index 545794a8c7ff..0e3b11d60426 100644
--- a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuPlatformDxe/SbsaQemuPlatformDxe.inf
+++ b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuPlatformDxe/SbsaQemuPlatformDxe.inf
@@ -43,6 +43,7 @@ [Pcd]
gArmTokenSpaceGuid.PcdGicDistributorBase
gArmTokenSpaceGuid.PcdGicRedistributorsBase
+ gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdGicItsBase
[Depex]
diff --git a/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h b/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h
index 853b81b34df5..983d17f6fa50 100644
--- a/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h
+++ b/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h
@@ -27,6 +27,7 @@
#define SBSAQEMU_MADT_GIC_HBASE 0x2c010000
#define SBSAQEMU_MADT_GIC_PMU_IRQ 23
#define SBSAQEMU_MADT_GICR_SIZE 0x4000000
+#define SBSAQEMU_MADT_GITS_SIZE 0x20000
// Macro for MADT GIC Redistributor Structure
#define SBSAQEMU_MADT_GICR_INIT() { \
@@ -37,6 +38,16 @@
SBSAQEMU_MADT_GICR_SIZE /* DiscoveryRangeLength */ \
}
+// Macro for MADT GIC ITS Structure
+#define SBSAQEMU_MADT_GIC_ITS_INIT(GicItsId) { \
+ EFI_ACPI_6_5_GIC_ITS, /* Type */ \
+ sizeof (EFI_ACPI_6_5_GIC_ITS_STRUCTURE), /* Length */ \
+ EFI_ACPI_RESERVED_WORD, /* Reserved */ \
+ GicItsId, /* GicItsId */ \
+ PcdGet64 (PcdGicItsBase), /* PhysicalBaseAddress */ \
+ EFI_ACPI_RESERVED_DWORD /* Reserved2 */ \
+ }
+
#define SBSAQEMU_ACPI_SCOPE_OP_MAX_LENGTH 5
#define SBSAQEMU_ACPI_SCOPE_NAME { '_', 'S', 'B', '_' }
diff --git a/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h b/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h
index 7fbd3bd887d0..7934875e4aba 100644
--- a/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h
+++ b/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h
@@ -13,5 +13,6 @@
#define SIP_SVC_VERSION SMC_SIP_FUNCTION_ID(1)
#define SIP_SVC_GET_GIC SMC_SIP_FUNCTION_ID(100)
+#define SIP_SVC_GET_GIC_ITS SMC_SIP_FUNCTION_ID(101)
#endif /* SBSA_QEMU_SMC_H_ */
diff --git a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
index ae5397bab768..961482269678 100644
--- a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
+++ b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
@@ -91,6 +91,11 @@ AddMadtTable (
// Initialize GIC Redistributor Structure
EFI_ACPI_6_0_GICR_STRUCTURE Gicr = SBSAQEMU_MADT_GICR_INIT();
+ // Initialize GIC ITS Structure
+ EFI_ACPI_6_5_GIC_ITS_STRUCTURE Gic_Its = SBSAQEMU_MADT_GIC_ITS_INIT(0);
+
+ DEBUG ((DEBUG_ERROR, "itsBaseAddr is 0x%4x\n", PcdGet64 (PcdGicItsBase)));
+
// Get CoreCount which was determined eariler after parsing device tree
NumCores = PcdGet32 (PcdCoreCount);
@@ -98,7 +103,8 @@ AddMadtTable (
TableSize = sizeof (EFI_ACPI_6_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER) +
(sizeof (EFI_ACPI_6_0_GIC_STRUCTURE) * NumCores) +
sizeof (EFI_ACPI_6_0_GIC_DISTRIBUTOR_STRUCTURE) +
- sizeof (EFI_ACPI_6_0_GICR_STRUCTURE);
+ sizeof (EFI_ACPI_6_0_GICR_STRUCTURE) +
+ sizeof (EFI_ACPI_6_5_GIC_ITS_STRUCTURE);
Status = gBS->AllocatePages (
AllocateAnyPages,
@@ -138,6 +144,10 @@ AddMadtTable (
CopyMem (New, &Gicr, sizeof (EFI_ACPI_6_0_GICR_STRUCTURE));
New += sizeof (EFI_ACPI_6_0_GICR_STRUCTURE);
+ // GIC ITS Structure
+ CopyMem (New, &Gic_Its, sizeof (EFI_ACPI_6_5_GIC_ITS_STRUCTURE));
+ New += sizeof (EFI_ACPI_6_5_GIC_ITS_STRUCTURE);
+
AcpiPlatformChecksum ((UINT8*) PageAddress, TableSize);
Status = AcpiTable->InstallAcpiTable (
diff --git a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuPlatformDxe/SbsaQemuPlatformDxe.c b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuPlatformDxe/SbsaQemuPlatformDxe.c
index f6a3e84483fe..ddcca2b7243c 100644
--- a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuPlatformDxe/SbsaQemuPlatformDxe.c
+++ b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuPlatformDxe/SbsaQemuPlatformDxe.c
@@ -86,5 +86,15 @@ InitializeSbsaQemuPlatformDxe (
DEBUG ((DEBUG_INFO, "GICR base: 0x%x\n", Arg0));
+ SmcResult = ArmCallSmc0 (SIP_SVC_GET_GIC_ITS, &Arg0, NULL, NULL);
+ if (SmcResult == SMC_ARCH_CALL_SUCCESS) {
+ Result = PcdSet64S (PcdGicItsBase, Arg0);
+ ASSERT_RETURN_ERROR (Result);
+ }
+
+ Arg0 = PcdGet64 (PcdGicItsBase);
+
+ DEBUG ((DEBUG_INFO, "GICI base: 0x%x\n", Arg0));
+
return EFI_SUCCESS;
}
diff --git a/Silicon/Qemu/SbsaQemu/AcpiTables/Iort.aslc b/Silicon/Qemu/SbsaQemu/AcpiTables/Iort.aslc
new file mode 100644
index 000000000000..ec4ce504efd1
--- /dev/null
+++ b/Silicon/Qemu/SbsaQemu/AcpiTables/Iort.aslc
@@ -0,0 +1,135 @@
+/** @file
+
+ Copyright (c) 2023, Linaro Ltd. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <IndustryStandard/IoRemappingTable.h>
+#include <IndustryStandard/Acpi.h>
+#include <IndustryStandard/SbsaQemuAcpi.h>
+
+#pragma pack(1)
+
+typedef struct {
+ EFI_ACPI_6_0_IO_REMAPPING_ITS_NODE Node;
+ UINT32 Identifiers;
+} SBSA_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;
+} SBSA_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;
+} SBSA_EFI_ACPI_6_0_IO_REMAPPING_RC_NODE;
+
+typedef struct {
+ EFI_ACPI_6_0_IO_REMAPPING_TABLE Iort;
+ SBSA_EFI_ACPI_6_0_IO_REMAPPING_ITS_NODE ItsNode;
+ SBSA_EFI_ACPI_6_0_IO_REMAPPING_SMMU3_NODE SmmuNode;
+ SBSA_EFI_ACPI_6_0_IO_REMAPPING_RC_NODE RcNode;
+} SBSA_IO_REMAPPING_STRUCTURE;
+
+#pragma pack ()
+
+STATIC SBSA_IO_REMAPPING_STRUCTURE Iort = {
+ {
+ SBSAQEMU_ACPI_HEADER(EFI_ACPI_6_0_IO_REMAPPING_TABLE_SIGNATURE,
+ SBSA_IO_REMAPPING_STRUCTURE,
+ EFI_ACPI_IO_REMAPPING_TABLE_REVISION_00),
+ 3, // NumNodes
+ sizeof(EFI_ACPI_6_0_IO_REMAPPING_TABLE), // NodeOffset
+ 0 // Reserved
+ },
+ // SBSA_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 (SBSA_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 (SBSA_EFI_ACPI_6_0_IO_REMAPPING_SMMU3_NODE), // Length
+ 2, // Revision
+ 0, // Reserved
+ 1, // NumIdMapping
+ OFFSET_OF (SBSA_EFI_ACPI_6_0_IO_REMAPPING_SMMU3_NODE, SmmuIdMap), // IdReference
+ },
+ 0x60050000, // Base address
+ EFI_ACPI_IORT_SMMUv3_FLAG_COHAC_OVERRIDE, // Flags
+ 0, // Reserved
+ 0, // VATOS address
+ EFI_ACPI_IORT_SMMUv3_MODEL_GENERIC, // SMMUv3 Model
+ 74, // Event
+ 75, // Pri
+ 77, // Gerror
+ 76, // Sync
+ 0, // Proximity domain
+ 1, // DevIDMappingIndex
+ },
+ // EFI_ACPI_6_0_IO_REMAPPING_ID_TABLE
+ {
+ 0x0000, // InputBase
+ 0xffff, // NumIds
+ 0x0000, // OutputBase
+ OFFSET_OF (SBSA_IO_REMAPPING_STRUCTURE, ItsNode), // OutputReference
+ 0, // Flags
+ },
+ },
+ // SBSA_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 (SBSA_EFI_ACPI_6_0_IO_REMAPPING_RC_NODE), // Length
+ 0, // Revision
+ 0, // Reserved
+ 1, // NumIdMappings
+ OFFSET_OF (SBSA_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
+ //0, //MemoryAddressSizeLimit
+ },
+ // EFI_ACPI_6_0_IO_REMAPPING_ID_TABLE
+ {
+ 0x0000, // InputBase
+ 0xffff, // NumIds
+ 0x0000, // OutputBase
+ OFFSET_OF (SBSA_IO_REMAPPING_STRUCTURE, SmmuNode), // OutputReference
+ 0, // Flags
+ }
+ }
+};
+
+#pragma pack()
+
+VOID* CONST ReferenceAcpiTable = &Iort;
\ No newline at end of file
--
2.41.0
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