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>

DynamicTablesPkg/Include/AmlCpcInfo.h

@@ -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_