/** @file
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*
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* PEP device defines
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*
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* Copyright (c) 2019, ARM Ltd. All rights reserved.
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* Copyright (c) 2018, Andrei Warkentin <andrey.warkentin@gmail.com>
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* Copyright (c) Microsoft Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-2-Clause-Patent
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*
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**/
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/*
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* Note: Not everything is here. At least SOC_STATE_TYPE is missing.
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*/
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#ifndef _RPI_PEP_H_INCLUDED_
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#define _RPI_PEP_H_INCLUDED_
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#include <IndustryStandard/Acpi.h>
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#define PEP_MAX_DEPENDENCIES_PER_STATE 16
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#define MAX_PROCESSOR_PATH_LENGTH 16
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#define MAX_DEVICE_PATH_LENGTH 32
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#define MAX_COMPONENT_COUNT 8
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#define P_NUMBER_PROCESSORS 1
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#define P_NUMBER_IDLE_STATES 1
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#define P_NUMBER_PERF_STATES 0
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#define P_NUMBER_DEVICES 1
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#define P_NUMBER_COORDINATED_STATS 1
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typedef struct _PEP_PROCESSOR_IDLE_STATE_INFO {
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UINT32 Ulong;
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UINT32 Latency;
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UINT32 BreakEvenDuration;
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} PEP_PROCESSOR_IDLE_STATE_INFO, *PEP_PROCESSOR_IDLE_STATE_INFO;
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typedef struct _PEP_PROCESSOR_IDLE_INFO_PLAT {
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//
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// Processor idle states.
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//
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PEP_PROCESSOR_IDLE_STATE_INFO IdleStates[P_NUMBER_IDLE_STATES];
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} PEP_PROCESSOR_IDLE_INFO_PLAT, *PPEP_PROCESSOR_IDLE_INFO_PLAT;
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typedef struct COORDINATED_DEPENDENCY_INFO {
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UINT32 ExpectedState;
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UINT32 TargetProcessor;
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UINT32 Ulong;
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} COORDINATED_DEPENDENCY_INFO, *PCOORDINATED_DEPENDENCY_INFO;
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typedef struct {
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COORDINATED_DEPENDENCY_INFO DependencyInfo[PEP_MAX_DEPENDENCIES_PER_STATE];
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UINT32 StateType;
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UINT32 Ulong;
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UINT32 Latency;
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UINT32 BreakEvenDuration;
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UINT32 DependencyCount;
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UINT32 MaximumDependencySize;
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} COORDINATED_STATE_INFO;
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typedef struct {
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UINT32 Unused;
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} PEP_PROCESSOR_PERF_INFO;
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typedef struct {
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UINT32 FState[MAX_COMPONENT_COUNT];
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} COORDINATED_FSTATE_REQUIREMENT;
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typedef struct {
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UINT32 DState;
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} COORDINATED_DSTATE_REQUIREMENT;
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//
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// Top level device table
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// *N.B. The exact length of the structure is determined by the NumberIdleStates/NumberPerfStates variables.
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//
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typedef struct _PEP_PROCESSOR_INFO_PLAT {
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WCHAR DevicePath[MAX_PROCESSOR_PATH_LENGTH]; // Null-terminated ACPI name
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ULONG FeedbackCounterCount;
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ULONG Flags;
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//
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// We are putting the idle/perf state count here (instead
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// of the PEP_PROCESSOR_xxx_INFO structure for the ease of parsing.
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//
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ULONG NumberIdleStates;
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ULONG NumberPerfStates;
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PEP_PROCESSOR_IDLE_INFO_PLAT IdleInfo;
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PEP_PROCESSOR_PERF_INFO PerfInfo;
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} PEP_PROCESSOR_INFO_PLAT, *PPEP_PROCESSOR_INFO_PLAT;
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typedef struct _PEP_PROCESSOR_TABLE_PLAT {
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UINT32 Version;
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UINT32 NumberProcessors;
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PEP_PROCESSOR_INFO_PLAT ProcessorInfo[P_NUMBER_PROCESSORS];
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} PEP_PROCESSOR_TABLE_PLAT;
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typedef struct _PEP_COORDINATED_STATE_TABLE_PLAT {
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ULONG Version;
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ULONG CoordinatedStateCount;
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COORDINATED_STATE_INFO CoordinatedStates[P_NUMBER_COORDINATED_STATS];
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} PEP_COORDINATED_STATE_TABLE_PLAT, *PPEP_COORDINATED_STATE_TABLE_PLAT;
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typedef struct _PEP_DEVICE_INFO_PLAT {
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WCHAR DevicePath[MAX_DEVICE_PATH_LENGTH]; // Null-terminated ACPI name
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ULONG DStateSupportMask;
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ULONG NumberComponents;
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COORDINATED_DSTATE_REQUIREMENT DStateRequirement[P_NUMBER_COORDINATED_STATS];
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COORDINATED_FSTATE_REQUIREMENT FStateRequirement[P_NUMBER_COORDINATED_STATS];
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} PEP_DEVICE_INFO_PLAT, *PPEP_DEVICE_INFO_PLAT;
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typedef struct _PEP_DEVICE_TABLE_PLAT {
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ULONG Version;
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ULONG NumberDevices;
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PEP_DEVICE_INFO_PLAT DeviceInfo[P_NUMBER_DEVICES];
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} PEP_DEVICE_TABLE_PLAT, *PPEP_DEVICE_TABLE_PLAT;
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#endif // _RPI_PEP_H_INCLUDED_
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