Leaked source code of windows server 2003
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/*++ BUILD Version: 0000 // Increment this if a change has global effects
Copyright (c) 2000 Microsoft Corporation
Module Name:
procpowr.h
Abstract:
This module contains the public (external) header file for the processor
power states required by the PRCB.
Author:
Stephane Plante (splante) 17-Oct-2000
Revision History:
--*/
#ifndef _PROCPOWR_H_
#define _PROCPOWR_H_
//
// Power structure in each processors PRCB
//
struct _PROCESSOR_POWER_STATE; // forward ref
typedef
VOID
(FASTCALL *PPROCESSOR_IDLE_FUNCTION) (
struct _PROCESSOR_POWER_STATE *PState
);
//
// Note: this data structure must contain a number of ULONG such that the
// next structure in the PRCB is aligned on an 16 byte boundary. Currently,
// this means that this structure must have a size that ends on the odd
// eight-byte boundary. In other words, the size of this structure must
// end in 0x8...
//
typedef struct _PROCESSOR_POWER_STATE {
PPROCESSOR_IDLE_FUNCTION IdleFunction;
ULONG Idle0KernelTimeLimit;
ULONG Idle0LastTime;
PVOID IdleHandlers;
PVOID IdleState;
ULONG IdleHandlersCount;
ULONGLONG LastCheck;
PROCESSOR_IDLE_TIMES IdleTimes;
ULONG IdleTime1;
ULONG PromotionCheck;
ULONG IdleTime2;
UCHAR CurrentThrottle; // current throttle setting
UCHAR ThermalThrottleLimit; // max available throttle setting
UCHAR CurrentThrottleIndex;
UCHAR ThermalThrottleIndex;
ULONG PerfSystemTime;
ULONG PerfIdleTime;
// temp for debugging
ULONGLONG DebugDelta;
ULONG DebugCount;
ULONG LastSysTime;
ULONGLONG TotalIdleStateTime[3];
ULONG TotalIdleTransitions[3];
ULONGLONG PreviousC3StateTime;
UCHAR KneeThrottleIndex;
UCHAR ThrottleLimitIndex;
UCHAR PerfStatesCount;
UCHAR ProcessorMinThrottle;
UCHAR ProcessorMaxThrottle;
UCHAR LastBusyPercentage;
UCHAR LastC3Percentage;
UCHAR LastAdjustedBusyPercentage;
ULONG PromotionCount;
ULONG DemotionCount;
ULONG ErrorCount;
ULONG RetryCount;
ULONG Flags;
LARGE_INTEGER PerfCounterFrequency;
ULONG PerfTickCount;
KTIMER PerfTimer;
KDPC PerfDpc;
PPROCESSOR_PERF_STATE PerfStates;
PSET_PROCESSOR_THROTTLE2 PerfSetThrottle;
ULONG Spare1[2];
} PROCESSOR_POWER_STATE, *PPROCESSOR_POWER_STATE;
//
// Processor Power State Flags
//
#define PSTATE_SUPPORTS_THROTTLE 0x01
#define PSTATE_ADAPTIVE_THROTTLE 0x02
#define PSTATE_DEGRADED_THROTTLE 0x04
#define PSTATE_CONSTANT_THROTTLE 0x08
#define PSTATE_NOT_INITIALIZED 0x10
#define PSTATE_DISABLE_THROTTLE_NTAPI 0x20
#define PSTATE_DISABLE_THROTTLE_INRUSH 0x40
#define PSTATE_DISABLE_CSTATES 0x80
#define PSTATE_THERMAL_THROTTLE_APPLIED 0x100
//
// Useful masks
//
#define PSTATE_THROTTLE_MASK (PSTATE_ADAPTIVE_THROTTLE | \
PSTATE_DEGRADED_THROTTLE | \
PSTATE_CONSTANT_THROTTLE)
#define PSTATE_CLEAR_MASK (PSTATE_SUPPORTS_THROTTLE | \
PSTATE_THROTTLE_MASK)
#define PSTATE_DISABLE_THROTTLE (PSTATE_DISABLE_THROTTLE_NTAPI | \
PSTATE_DISABLE_THROTTLE_INRUSH)
#endif // _PROCPOWR_H_