DynamicTablesPkg: Add CM_ARM_CPC_INFO object

Introduce the CM_ARM_CPC_INFO CmObj in the ArmNameSpaceObjects.
This allows to describe CPC information, as described in ACPI 6.4,
s8.4.7.1 "_CPC (Continuous Performance Control)".

Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
This commit is contained in:
Jeff Brasen 2022-09-22 14:36:44 -06:00 committed by mergify[bot]
parent 953438e466
commit 09c90532e7
3 changed files with 264 additions and 34 deletions

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@ -0,0 +1,124 @@
/** @file
Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef AML_CPC_INFO_H_
#define AML_CPC_INFO_H_
#include <IndustryStandard/Acpi.h>
#pragma pack(1)
/** A structure that describes the Cpc information.
Continuous Performance Control is described in DSDT/SSDT and associated
to cpus/clusters in the cpu topology.
Unsupported Optional registers should be encoded with NULL resource
Register {(SystemMemory, 0, 0, 0, 0)}
For values that support Integer or Buffer, integer will be used
if buffer is NULL resource.
If resource is not NULL then Integer must be 0
Cf. ACPI 6.4, s8.4.7.1 _CPC (Continuous Performance Control)
**/
typedef struct AmlCpcInfo {
/// The revision number of the _CPC package format.
UINT32 Revision;
/// Indicates the highest level of performance the processor
/// is theoretically capable of achieving.
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE HighestPerformanceBuffer;
UINT32 HighestPerformanceInteger;
/// Indicates the highest sustained performance level of the processor.
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE NominalPerformanceBuffer;
UINT32 NominalPerformanceInteger;
/// Indicates the lowest performance level of the processor with non-linear power savings.
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE LowestNonlinearPerformanceBuffer;
UINT32 LowestNonlinearPerformanceInteger;
/// Indicates the lowest performance level of the processor..
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE LowestPerformanceBuffer;
UINT32 LowestPerformanceInteger;
/// Guaranteed Performance Register Buffer.
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE GuaranteedPerformanceRegister;
/// Desired Performance Register Buffer.
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE DesiredPerformanceRegister;
/// Minimum Performance Register Buffer.
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE MinimumPerformanceRegister;
/// Maximum Performance Register Buffer.
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE MaximumPerformanceRegister;
/// Performance Reduction Tolerance Register.
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE PerformanceReductionToleranceRegister;
/// Time Window Register.
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE TimeWindowRegister;
/// Counter Wraparound Time
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE CounterWraparoundTimeBuffer;
UINT32 CounterWraparoundTimeInteger;
/// Reference Performance Counter Register
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE ReferencePerformanceCounterRegister;
/// Delivered Performance Counter Register
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE DeliveredPerformanceCounterRegister;
/// Performance Limited Register
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE PerformanceLimitedRegister;
/// CPPC EnableRegister
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE CPPCEnableRegister;
/// Autonomous Selection Enable
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE AutonomousSelectionEnableBuffer;
UINT32 AutonomousSelectionEnableInteger;
/// AutonomousActivity-WindowRegister
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE AutonomousActivityWindowRegister;
/// EnergyPerformance-PreferenceRegister
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE EnergyPerformancePreferenceRegister;
/// Reference Performance
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE ReferencePerformanceBuffer;
UINT32 ReferencePerformanceInteger;
/// Lowest Frequency
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE LowestFrequencyBuffer;
UINT32 LowestFrequencyInteger;
/// Nominal Frequency
/// Optional
EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE NominalFrequencyBuffer;
UINT32 NominalFrequencyInteger;
} AML_CPC_INFO;
#pragma pack()
#endif //AML_CPC_INFO_H_

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@ -13,6 +13,7 @@
#ifndef ARM_NAMESPACE_OBJECTS_H_
#define ARM_NAMESPACE_OBJECTS_H_
#include <AmlCpcInfo.h>
#include <StandardNameSpaceObjects.h>
#pragma pack(1)
@ -63,6 +64,7 @@ typedef enum ArmObjectID {
EArmObjPciInterruptMapInfo, ///< 39 - Pci Interrupt Map Info
EArmObjRmr, ///< 40 - Reserved Memory Range Node
EArmObjMemoryRangeDescriptor, ///< 41 - Memory Range Descriptor
EArmObjCpcInfo, ///< 42 - Continuous Performance Control Info
EArmObjMax
} EARM_OBJECT_ID;
@ -97,99 +99,104 @@ typedef struct CmArmPowerManagementProfileInfo {
*/
typedef struct CmArmGicCInfo {
/// The GIC CPU Interface number.
UINT32 CPUInterfaceNumber;
UINT32 CPUInterfaceNumber;
/** The ACPI Processor UID. This must match the
_UID of the CPU Device object information described
in the DSDT/SSDT for the CPU.
*/
UINT32 AcpiProcessorUid;
UINT32 AcpiProcessorUid;
/** The flags field as described by the GICC structure
in the ACPI Specification.
*/
UINT32 Flags;
UINT32 Flags;
/** The parking protocol version field as described by
the GICC structure in the ACPI Specification.
*/
UINT32 ParkingProtocolVersion;
UINT32 ParkingProtocolVersion;
/** The Performance Interrupt field as described by
the GICC structure in the ACPI Specification.
*/
UINT32 PerformanceInterruptGsiv;
UINT32 PerformanceInterruptGsiv;
/** The CPU Parked address field as described by
the GICC structure in the ACPI Specification.
*/
UINT64 ParkedAddress;
UINT64 ParkedAddress;
/** The base address for the GIC CPU Interface
as described by the GICC structure in the
ACPI Specification.
*/
UINT64 PhysicalBaseAddress;
UINT64 PhysicalBaseAddress;
/** The base address for GICV interface
as described by the GICC structure in the
ACPI Specification.
*/
UINT64 GICV;
UINT64 GICV;
/** The base address for GICH interface
as described by the GICC structure in the
ACPI Specification.
*/
UINT64 GICH;
UINT64 GICH;
/** The GICV maintenance interrupt
as described by the GICC structure in the
ACPI Specification.
*/
UINT32 VGICMaintenanceInterrupt;
UINT32 VGICMaintenanceInterrupt;
/** The base address for GICR interface
as described by the GICC structure in the
ACPI Specification.
*/
UINT64 GICRBaseAddress;
UINT64 GICRBaseAddress;
/** The MPIDR for the CPU
as described by the GICC structure in the
ACPI Specification.
*/
UINT64 MPIDR;
UINT64 MPIDR;
/** The Processor Power Efficiency class
as described by the GICC structure in the
ACPI Specification.
*/
UINT8 ProcessorPowerEfficiencyClass;
UINT8 ProcessorPowerEfficiencyClass;
/** Statistical Profiling Extension buffer overflow GSIV. Zero if
unsupported by this processor. This field was introduced in
ACPI 6.3 (MADT revision 5) and is therefore ignored when
generating MADT revision 4 or lower.
*/
UINT16 SpeOverflowInterrupt;
UINT16 SpeOverflowInterrupt;
/** The proximity domain to which the logical processor belongs.
This field is used to populate the GICC affinity structure
in the SRAT table.
*/
UINT32 ProximityDomain;
UINT32 ProximityDomain;
/** The clock domain to which the logical processor belongs.
This field is used to populate the GICC affinity structure
in the SRAT table.
*/
UINT32 ClockDomain;
UINT32 ClockDomain;
/** The GICC Affinity flags field as described by the GICC Affinity structure
in the SRAT table.
*/
UINT32 AffinityFlags;
UINT32 AffinityFlags;
/** Optional field: Reference Token for the Cpc info of this processor.
i.e. a token referencing a CM_ARM_CPC_INFO object.
*/
CM_OBJECT_TOKEN CpcToken;
} CM_ARM_GICC_INFO;
/** A structure that describes the
@ -1070,6 +1077,24 @@ typedef struct CmArmRmrDescriptor {
UINT64 Length;
} CM_ARM_MEMORY_RANGE_DESCRIPTOR;
/** A structure that describes the Cpc information.
Continuous Performance Control is described in DSDT/SSDT and associated
to cpus/clusters in the cpu topology.
Unsupported Optional registers should be encoded with NULL resource
Register {(SystemMemory, 0, 0, 0, 0)}
For values that support Integer or Buffer, integer will be used
if buffer is NULL resource.
If resource is not NULL then Integer must be 0
Cf. ACPI 6.4, s8.4.7.1 _CPC (Continuous Performance Control)
ID: EArmObjCpcInfo
*/
typedef AML_CPC_INFO CM_ARM_CPC_INFO;
#pragma pack()
#endif // ARM_NAMESPACE_OBJECTS_H_

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@ -34,23 +34,24 @@ STATIC CONST CM_OBJ_PARSER CmArmPowerManagementProfileInfoParser[] = {
/** A parser for EArmObjGicCInfo.
*/
STATIC CONST CM_OBJ_PARSER CmArmGicCInfoParser[] = {
{ "CPUInterfaceNumber", 4, "0x%x", NULL },
{ "AcpiProcessorUid", 4, "0x%x", NULL },
{ "Flags", 4, "0x%x", NULL },
{ "ParkingProtocolVersion", 4, "0x%x", NULL },
{ "PerformanceInterruptGsiv", 4, "0x%x", NULL },
{ "ParkedAddress", 8, "0x%llx", NULL },
{ "PhysicalBaseAddress", 8, "0x%llx", NULL },
{ "GICV", 8, "0x%llx", NULL },
{ "GICH", 8, "0x%llx", NULL },
{ "VGICMaintenanceInterrupt", 4, "0x%x", NULL },
{ "GICRBaseAddress", 8, "0x%llx", NULL },
{ "MPIDR", 8, "0x%llx", NULL },
{ "ProcessorPowerEfficiencyClass", 1, "0x%x", NULL },
{ "SpeOverflowInterrupt", 2, "0x%x", NULL },
{ "ProximityDomain", 4, "0x%x", NULL },
{ "ClockDomain", 4, "0x%x", NULL },
{ "AffinityFlags", 4, "0x%x", NULL }
{ "CPUInterfaceNumber", 4, "0x%x", NULL },
{ "AcpiProcessorUid", 4, "0x%x", NULL },
{ "Flags", 4, "0x%x", NULL },
{ "ParkingProtocolVersion", 4, "0x%x", NULL },
{ "PerformanceInterruptGsiv", 4, "0x%x", NULL },
{ "ParkedAddress", 8, "0x%llx", NULL },
{ "PhysicalBaseAddress", 8, "0x%llx", NULL },
{ "GICV", 8, "0x%llx", NULL },
{ "GICH", 8, "0x%llx", NULL },
{ "VGICMaintenanceInterrupt", 4, "0x%x", NULL },
{ "GICRBaseAddress", 8, "0x%llx", NULL },
{ "MPIDR", 8, "0x%llx", NULL },
{ "ProcessorPowerEfficiencyClass", 1, "0x%x", NULL },
{ "SpeOverflowInterrupt", 2, "0x%x", NULL },
{ "ProximityDomain", 4, "0x%x", NULL },
{ "ClockDomain", 4, "0x%x", NULL },
{ "AffinityFlags", 4, "0x%x", NULL },
{ "CpcToken", sizeof (CM_OBJECT_TOKEN), "0x%p", NULL }
};
/** A parser for EArmObjGicDInfo.
@ -423,6 +424,84 @@ STATIC CONST CM_OBJ_PARSER CmPciInterruptMapInfoParser[] = {
ARRAY_SIZE (CmArmGenericInterruptParser) },
};
/** A parser for EArmObjCpcInfo.
*/
STATIC CONST CM_OBJ_PARSER CmArmCpcInfoParser[] = {
{ "Revision", 4, "0x%lx", NULL },
{ "HighestPerformanceBuffer", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "HighestPerformanceInteger", 4, "0x%lx", NULL },
{ "NominalPerformanceBuffer", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "NominalPerformanceInteger", 4, "0x%lx", NULL },
{ "LowestNonlinearPerformanceBuffer", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "LowestNonlinearPerformanceInteger", 4, "0x%lx", NULL },
{ "LowestPerformanceBuffer", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "LowestPerformanceInteger", 4, "0x%lx", NULL },
{ "GuaranteedPerformanceRegister", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "DesiredPerformanceRegister", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "MinimumPerformanceRegister", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "MaximumPerformanceRegister", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "PerformanceReductionToleranceRegister", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "TimeWindowRegister", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "CounterWraparoundTimeBuffer", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "CounterWraparoundTimeInteger", 4, "0x%lx", NULL },
{ "ReferencePerformanceCounterRegister", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "DeliveredPerformanceCounterRegister", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "PerformanceLimitedRegister", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "CPPCEnableRegister", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "AutonomousSelectionEnableBuffer", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "AutonomousSelectionEnableInteger", 4, "0x%lx", NULL },
{ "AutonomousActivityWindowRegister", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "EnergyPerformancePreferenceRegister", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "ReferencePerformanceBuffer", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "ReferencePerformanceInteger", 4, "0x%lx", NULL },
{ "LowestFrequencyBuffer", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "LowestFrequencyInteger", 4, "0x%lx", NULL },
{ "NominalFrequencyBuffer", sizeof (EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE),
NULL, NULL, AcpiGenericAddressParser,
ARRAY_SIZE (AcpiGenericAddressParser) },
{ "NominalFrequencyInteger", 4, "0x%lx", NULL },
};
/** A parser for Arm namespace objects.
*/
STATIC CONST CM_OBJ_PARSER_ARRAY ArmNamespaceObjectParser[] = {
@ -501,6 +580,8 @@ STATIC CONST CM_OBJ_PARSER_ARRAY ArmNamespaceObjectParser[] = {
ARRAY_SIZE (CmArmPciAddressMapInfoParser) },
{ "EArmObjPciInterruptMapInfo", CmPciInterruptMapInfoParser,
ARRAY_SIZE (CmPciInterruptMapInfoParser) },
{ "EArmObjCpcInfo", CmArmCpcInfoParser,
ARRAY_SIZE (CmArmCpcInfoParser) },
{ "EArmObjMax", NULL, 0 },
};