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/** @file
Arm Gic cpu parser.
Copyright (c) 2021 - 2022, Arm Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@par Reference(s):
- linux/Documentation/devicetree/bindings/interrupt-controller/arm,gic.yaml
- linux/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml
**/
#ifndef ARM_GICC_PARSER_H_
#define ARM_GICC_PARSER_H_
/* According to BSA 1.0 s3.6 PPI assignments, PMU IRQ ID is 23.
*/
#define BSA_PMU_IRQ 23
/** CM_ARM_GICC_INFO parser function.
This parser expects FdtBranch to be the "\cpus" node node.
At most one CmObj is created.
The following structure is populated:
typedef struct CmArmGicCInfo {
UINT32 CPUInterfaceNumber; // {Populated}
UINT32 AcpiProcessorUid; // {Populated}
UINT32 Flags; // {Populated}
UINT32 ParkingProtocolVersion; // {default = 0}
UINT32 PerformanceInterruptGsiv; // {Populated}
UINT64 ParkedAddress; // {default = 0}
UINT64 PhysicalBaseAddress; // {Populated}
UINT64 GICV; // {Populated}
UINT64 GICH; // {Populated}
UINT32 VGICMaintenanceInterrupt; // {Populated}
UINT64 GICRBaseAddress; // {default = 0}
UINT64 MPIDR; // {Populated}
UINT8 ProcessorPowerEfficiencyClass; // {default = 0}
UINT16 SpeOverflowInterrupt; // {default = 0}
UINT32 ProximityDomain; // {default = 0}
UINT32 ClockDomain; // {default = 0}
UINT32 AffinityFlags; // {default = 0}
} CM_ARM_GICC_INFO;
The pmu information can be found in the pmu node. There is no support
for now.
A parser parses a Device Tree to populate a specific CmObj type. None,
one or many CmObj can be created by the parser.
The created CmObj are then handed to the parser's caller through the
HW_INFO_ADD_OBJECT interface.
This can also be a dispatcher. I.e. a function that not parsing a
Device Tree but calling other parsers.
@param [in] FdtParserHandle A handle to the parser instance.
@param [in] FdtBranch When searching for DT node name, restrict
the search to this Device Tree branch.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_ABORTED An error occurred.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_NOT_FOUND Not found.
@retval EFI_UNSUPPORTED Unsupported.
**/
EFI_STATUS
EFIAPI
ArmGicCInfoParser (
IN CONST FDT_HW_INFO_PARSER_HANDLE FdtParserHandle,
IN INT32 FdtBranch
);
#endif // ARM_GICC_PARSER_H_
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