When TRBE is enabled the FVP model uses the PPI 15
(i.e. INT ID 31) as the TRBE interrupt.
Ref: https://www.kernel.org/doc/Documentation/
devicetree/bindings/arm/arm,trace-buffer-extension.yaml
Therefore, check the debug feature register
ID_AA64DFR0_EL1.TraceBuffer field to see if TRBE is
enabled and configure the TRBE interrupt in the GICC
structure in the MADT ACPI table.
Note: To enable TRBE support in the FVP REvC model
1. Build TF-A with the CTX_INCLUDE_AARCH32_REGS=0
build flag set, otherwise this results in an
exception when booting TF-A.
2. Set the model parameters to enable TRBE
-C cluster0.has_trbe=1 -C cluster1.has_trbe=1
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
---
Notes:
v3:
- Use macros instead of magic numbers in TRBE feature [Pierre]
detection code.
- Implemented helper functions in ArmLib to detect if [Sami]
the TRBE feature is present and used it instead.
Ref: https://edk2.groups.io/g/devel/message/108986
v2:
- Incorrect comment for TRBE interrupt number [Jeshua]
- Fixed comment to specify TRBE interrupt as [Sami]
PPI 15
Ref: https://edk2.groups.io/g/devel/message/107426
V2:
- Incorrect comment for TRBE interrupt number [Jeshua]
- Fixed comment to specify TRBE interrupt as [Sami]
PPI 15
Ref: https://edk2.groups.io/g/devel/message/107426
Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c | 31 +++++++++++++++-----
Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf | 3 +-
2 files changed, 25 insertions(+), 9 deletions(-)
diff --git a/Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c b/Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
index 4df2d6cdae58df344804a8b41208a3adb8ee0110..749d8eaf52de0888e9e44173f4f84aa41c4c70b5 100644
--- a/Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
+++ b/Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
@@ -1,7 +1,7 @@
/** @file
Configuration Manager Dxe
- Copyright (c) 2017 - 2021, Arm Limited. All rights reserved.<BR>
+ Copyright (c) 2017 - 2023, Arm Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -37,8 +37,8 @@ EDKII_PLATFORM_REPOSITORY_INFO VExpressPlatRepositoryInfo = {
{
// FADT Table
{
- EFI_ACPI_6_3_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE,
- EFI_ACPI_6_3_FIXED_ACPI_DESCRIPTION_TABLE_REVISION,
+ EFI_ACPI_6_5_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE,
+ EFI_ACPI_6_5_FIXED_ACPI_DESCRIPTION_TABLE_REVISION,
CREATE_STD_ACPI_TABLE_GEN_ID (EStdAcpiTableIdFadt),
NULL
},
@@ -51,8 +51,8 @@ EDKII_PLATFORM_REPOSITORY_INFO VExpressPlatRepositoryInfo = {
},
// MADT Table
{
- EFI_ACPI_6_3_MULTIPLE_APIC_DESCRIPTION_TABLE_SIGNATURE,
- EFI_ACPI_6_3_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION,
+ EFI_ACPI_6_5_MULTIPLE_APIC_DESCRIPTION_TABLE_SIGNATURE,
+ EFI_ACPI_6_5_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION,
CREATE_STD_ACPI_TABLE_GEN_ID (EStdAcpiTableIdMadt),
NULL
},
@@ -109,15 +109,15 @@ EDKII_PLATFORM_REPOSITORY_INFO VExpressPlatRepositoryInfo = {
},
// Boot architecture information
- { EFI_ACPI_6_3_ARM_PSCI_COMPLIANT }, // BootArchFlags
+ { EFI_ACPI_6_5_ARM_PSCI_COMPLIANT }, // BootArchFlags
#ifdef HEADLESS_PLATFORM
// Fixed feature flag information
- { EFI_ACPI_6_3_HEADLESS }, // Fixed feature flags
+ { EFI_ACPI_6_5_HEADLESS }, // Fixed feature flags
#endif
// Power management profile information
- { EFI_ACPI_6_3_PM_PROFILE_ENTERPRISE_SERVER }, // PowerManagement Profile
+ { EFI_ACPI_6_5_PM_PROFILE_ENTERPRISE_SERVER }, // PowerManagement Profile
/* GIC CPU Interface information
GIC_ENTRY (CPUInterfaceNumber, Mpidr, PmuIrq, VGicIrq, EnergyEfficiency)
@@ -474,6 +474,8 @@ InitializePlatformRepository (
)
{
EDKII_PLATFORM_REPOSITORY_INFO * PlatformRepo;
+ UINTN Index;
+ UINT16 TrbeInterrupt;
PlatformRepo = This->PlatRepoInfo;
@@ -491,6 +493,19 @@ InitializePlatformRepository (
PlatformRepo->GicCInfo[6].MPIDR = GET_MPID_MT (1, 2, 0);
PlatformRepo->GicCInfo[7].MPIDR = GET_MPID_MT (1, 3, 0);
}
+
+ TrbeInterrupt = 0;
+
+ // The ID_AA64DFR0_EL1.TraceBuffer field identifies support for FEAT_TRBE.
+ if (ArmHasTrbe ()) {
+ // TRBE Interrupt is PPI 15 on FVP model.
+ TrbeInterrupt = 31;
+ }
+
+ for (Index = 0; Index < PLAT_CPU_COUNT; Index++) {
+ PlatformRepo->GicCInfo[Index].TrbeInterrupt = TrbeInterrupt;
+ }
+
return EFI_SUCCESS;
}
diff --git a/Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf b/Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
index b53daf51d4b1afd45e41d0debb0b9f084f135f6a..dd08f8597768d4de62941c5fd74e329c431582b0 100644
--- a/Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
+++ b/Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
@@ -1,7 +1,7 @@
## @file
# Configuration Manager Dxe
#
-# Copyright (c) 2017 - 2021, Arm Limited. All rights reserved.<BR>
+# Copyright (c) 2017 - 2023, Arm Limited. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
##
@@ -34,6 +34,7 @@ [Packages]
Platform/ARM/VExpressPkg/ArmVExpressPkg.dec
[LibraryClasses]
+ ArmLib
ArmPlatformLib
PrintLib
UefiBootServicesTableLib
--
'Guid(CE165669-3EF3-493F-B85D-6190EE5B9759)'
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#109009): https://edk2.groups.io/g/devel/message/109009
Mute This Topic: https://groups.io/mt/101522385/1787277
Group Owner: devel+owner@edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org]
-=-=-=-=-=-=-=-=-=-=-=-
© 2016 - 2024 Red Hat, Inc.