264 lines
4.1 KiB
C
264 lines
4.1 KiB
C
/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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crusoe.h
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Author:
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Todd Carpenter (10/31/00) - create file
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Environment:
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Kernel mode
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Notes:
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Revision History:
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--*/
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#ifndef _CRUSOE_H
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#define _CRUSOE_H
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#include "..\lib\processor.h"
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#include "..\eventmsg.h"
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#include <pshpack1.h>
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//
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// CPUID
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//
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#define LONGRUN_CPUID_MAXFUNCTION 0x80860000 // Max supported CPUID function, (ie 0x80860007)
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#define LONGRUN_CPUID_PROCESSOR_INFO 0x80860001
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#define LONGRUN_CPUID_GETSTATE 0x80860007 // Current Speed, Voltage, and State
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//
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// read: upper:lower bound of current performance percentage window
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// write: set the upper:lower bound of desired performance percentage window
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// Correct:
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// if EDX == EAX == 100d, then full performance (ie LongRun disabled)
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// if EDX == EAX, then fixed performance
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// if EDX > EAX, the performance within upper:lower window
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//
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// Incorrect: (results in #GP(0))
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// if (EDX > 100d) or (EAX > 100d)
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// if (EDX < EAX)
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//
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//
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// CMS4.1 MSR
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//
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#define LONGRUN_CONTROL_STATUS_MSR 0x80868010
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//
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// CMS4.2 Longrun Table Interface MSR's
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//
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#define LONGRUN_FLAGS_REGISTER_MSR 0x80868011
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#define LONGRUN_TI_READOUT_MSR 0x80868018
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#define LONGRUN_TI_PERFORMANCE_INDEX_MSR 0x80868019
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#define LONGRUN_TI_VOLTAGE_FREQUENCY_MSR 0x8086801A
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#define LONGRUN_TI_MEMORY_DIVISORS_MSR 0x8086801B
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#define LONGRUN_TI_IO_DIVISORS_MSR 0x8086801C
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#define LONGRUN_TI_GATE_DELAY_MSR 0x8086801D
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//
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// Processor Feature Flags
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//
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#define FEATURE_LONGRUN_ENALBED 0x2
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#define FEATURE_LRTI_ENABLED 0x8
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#define INVALID_LONGRUN_STATE (ULONG)-1
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#define MAX_LONGRUN_VALUE 100
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#define MAX_LONGRUN_STATES 4
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#define CRUSOE_TRANSITION_LATENCY 20 // microseconds
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typedef struct _STATE_INFO {
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ULONG CpuSpeed;
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ULONG Voltage;
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ULONG LongRunValue;
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} STATE_INFO, *PSTATE_INFO;
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typedef struct _LEGACY_INTERFACE_INFO {
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ULONG CurrentState;
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ULONG MaxSupportedStates;
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ULONG CurrentlyAvailableStates;
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} LEGACY_INTERFACE_INFO, *PLEGACY_INTERFACE_INFO;
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typedef struct _LONGRUN_STATES {
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ULONG MaxState;
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STATE_INFO States[MAX_LONGRUN_STATES];
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} LONGRUN_STATES, *PLONGRUN_STATES;
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//
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// Acpi 2.0 stuff
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//
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typedef struct {
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union {
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struct {
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ULONG Min:16; // 15:0 LongRun Lower Bound
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ULONG Max:16; // 31:16 LongRun Upper Bound
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};
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ULONG AsDWord;
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};
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} CRUSOE_PSS_VALUE;
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//
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// crusoe.c
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//
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NTSTATUS
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AdjustLegacyProcessorPerformanceStates(
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IN OUT PPROCESSOR_PERFORMANCE_STATES PerfStates
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);
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//
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// longrun.c
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//
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NTSTATUS
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InitializeLegacyInterface(
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IN PFDO_DATA DeviceExtension
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);
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NTSTATUS
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SetCurrentStateMSR(
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IN ULONG State,
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IN BOOLEAN InitPhase
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);
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ULONG
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ConvertLongRunValueToPerfState(
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IN PLONGRUN_STATES PerfStates,
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IN ULONG LongRunValue
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);
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NTSTATUS
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GetCurrentCpuSpeed(
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OUT PULONG CpuSpeed
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);
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NTSTATUS
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GetMaxCpuSpeed(
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OUT PULONG CpuSpeed
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);
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VOID
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GetProcessorFeatureFlags(
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OUT PULONG Flags
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);
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NTSTATUS
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GetCurrentStateInfo(
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OUT PSTATE_INFO StateInfo
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);
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ULONGLONG
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GetCurrentPerformanceRange(
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VOID
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);
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VOID
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SetCurrentPerformanceRange(
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IN ULONG Min,
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IN ULONG Max
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);
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NTSTATUS
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CalculateLongRunPerfStates(
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IN PLONGRUN_STATES PerfStates
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);
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NTSTATUS
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BuildAcpi2PerformanceStates(
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IN PACPI_PSS_PACKAGE PerfStates
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);
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NTSTATUS
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BuildLongRunPerfStatesCMS41(
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OUT PACPI_PSS_PACKAGE *PssPackage
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);
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NTSTATUS
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BuildLongRunPerfStatesCMS42(
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OUT PACPI_PSS_PACKAGE *PssPackage
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);
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ULONG
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LRTI_GetMaxSupportedLevel(
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VOID
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);
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VOID
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LRTI_SetCurrentLevel (
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ULONG LongRunLevel
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);
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ULONG
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LRTI_GetPerformanceIndex (
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VOID
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);
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ULONG
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LRTI_GetVoltage (
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VOID
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);
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ULONG
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LRTI_GetFrequency (
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VOID
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);
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ULONG
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GetLongRunFlagsRegister (
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VOID
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);
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VOID
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SetLongRunEconomyMode (
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VOID
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);
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VOID
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SetLongRunPerformanceMode (
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VOID
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);
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#if DBG
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VOID
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DisplayStateInfo(
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IN PSTATE_INFO State
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);
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VOID
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DisplayLongRunStates(
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IN PLONGRUN_STATES States
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);
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#else
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#define DisplayStateInfo(_x_)
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#define DisplayLongRunStates(_x_)
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#endif
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#endif
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