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Added fan control for Nvidia GPUs based on a patch by Christian Vallières.

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This commit is contained in:
Michael Möller
2011-07-07 21:53:09 +00:00
parent 938263fef2
commit 58f6092983
2 changed files with 139 additions and 53 deletions
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Hardware/Nvidia/NvidiaGPU.cs
+95 -30
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@@ -20,6 +20,7 @@
the Initial Developer. All Rights Reserved.
Contributor(s):
Christian Vallières
Alternatively, the contents of this file may be used under the terms of
either the GNU General Public License Version 2 or later (the "GPL"), or
@@ -52,12 +53,15 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
private readonly Sensor[] loads;
private readonly Sensor control;
private readonly Sensor memoryLoad;
private readonly Control fanControl;
public NvidiaGPU(int adapterIndex, NvPhysicalGpuHandle handle,
NvDisplayHandle? displayHandle, ISettings settings)
: base(GetName(handle), new Identifier("nvidiagpu",
adapterIndex.ToString(CultureInfo.InvariantCulture)), settings)
{
private bool restoreDefaultFanSpeedRequired;
private NvLevel initialFanSpeedValue;
public NvidiaGPU(int adapterIndex, NvPhysicalGpuHandle handle,
NvDisplayHandle? displayHandle, ISettings settings)
: base(GetName(handle), new Identifier("nvidiagpu",
adapterIndex.ToString(CultureInfo.InvariantCulture)), settings) {
this.adapterIndex = adapterIndex;
this.handle = handle;
this.displayHandle = displayHandle;
@@ -103,6 +107,18 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
memoryLoad = new Sensor("GPU Memory", 3, SensorType.Load, this, settings);
control = new Sensor("GPU Fan", 0, SensorType.Control, this, settings);
NvGPUCoolerSettings coolerSettings = GetCoolerSettings();
if (coolerSettings.Count > 0) {
fanControl = new Control(control, settings,
coolerSettings.Cooler[0].DefaultMin,
coolerSettings.Cooler[0].DefaultMax);
fanControl.ControlModeChanged += ControlModeChanged;
fanControl.SoftwareControlValueChanged += SoftwareControlValueChanged;
ControlModeChanged(fanControl);
control.Control = fanControl;
}
Update();
}
private static string GetName(NvPhysicalGpuHandle handle) {
@@ -123,12 +139,26 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
settings.Version = NVAPI.GPU_THERMAL_SETTINGS_VER;
settings.Count = NVAPI.MAX_THERMAL_SENSORS_PER_GPU;
settings.Sensor = new NvSensor[NVAPI.MAX_THERMAL_SENSORS_PER_GPU];
if (NVAPI.NvAPI_GPU_GetThermalSettings != null &&
if (!(NVAPI.NvAPI_GPU_GetThermalSettings != null &&
NVAPI.NvAPI_GPU_GetThermalSettings(handle, (int)NvThermalTarget.ALL,
ref settings) != NvStatus.OK) {
settings.Count = 0;
ref settings) == NvStatus.OK))
{
settings.Count = 0;
}
return settings;
}
private NvGPUCoolerSettings GetCoolerSettings() {
NvGPUCoolerSettings settings = new NvGPUCoolerSettings();
settings.Version = NVAPI.GPU_COOLER_SETTINGS_VER;
settings.Cooler = new NvCooler[NVAPI.MAX_COOLER_PER_GPU];
if (!(NVAPI.NvAPI_GPU_GetCoolerSettings != null &&
NVAPI.NvAPI_GPU_GetCoolerSettings(handle, 0,
ref settings) == NvStatus.OK))
{
settings.Count = 0;
}
return settings;
return settings;
}
private uint[] GetClocks() {
@@ -144,7 +174,7 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
public override void Update() {
NvGPUThermalSettings settings = GetThermalSettings();
foreach (Sensor sensor in temperatures)
foreach (Sensor sensor in temperatures)
sensor.Value = settings.Sensor[sensor.Index].CurrentTemp;
if (fan != null) {
@@ -167,7 +197,7 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
NvPStates states = new NvPStates();
states.Version = NVAPI.GPU_PSTATES_VER;
states.PStates = new NvPState[NVAPI.MAX_PSTATES_PER_GPU];
if (NVAPI.NvAPI_GPU_GetPStates != null &&
if (NVAPI.NvAPI_GPU_GetPStates != null &&
NVAPI.NvAPI_GPU_GetPStates(handle, ref states) == NvStatus.OK) {
for (int i = 0; i < 3; i++)
if (states.PStates[i].Present) {
@@ -188,12 +218,9 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
}
}
NvGPUCoolerSettings coolerSettings = new NvGPUCoolerSettings();
coolerSettings.Version = NVAPI.GPU_COOLER_SETTINGS_VER;
coolerSettings.Cooler = new NvCooler[NVAPI.MAX_COOLER_PER_GPU];
if (NVAPI.NvAPI_GPU_GetCoolerSettings != null &&
NVAPI.NvAPI_GPU_GetCoolerSettings(handle, 0, ref coolerSettings) ==
NvStatus.OK && coolerSettings.Count > 0) {
NvGPUCoolerSettings coolerSettings = GetCoolerSettings();
if (coolerSettings.Count > 0) {
control.Value = coolerSettings.Cooler[0].CurrentLevel;
ActivateSensor(control);
}
@@ -202,9 +229,8 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
memoryInfo.Version = NVAPI.GPU_MEMORY_INFO_VER;
memoryInfo.Values = new uint[NVAPI.MAX_MEMORY_VALUES_PER_GPU];
if (NVAPI.NvAPI_GPU_GetMemoryInfo != null && displayHandle.HasValue &&
NVAPI.NvAPI_GPU_GetMemoryInfo(displayHandle.Value, ref memoryInfo) ==
NvStatus.OK)
{
NVAPI.NvAPI_GPU_GetMemoryInfo(displayHandle.Value, ref memoryInfo) ==
NvStatus.OK) {
uint totalMemory = memoryInfo.Values[0];
uint freeMemory = memoryInfo.Values[4];
float usedMemory = Math.Max(totalMemory - freeMemory, 0);
@@ -221,9 +247,8 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
r.AppendFormat("Name: {0}{1}", name, Environment.NewLine);
r.AppendFormat("Index: {0}{1}", adapterIndex, Environment.NewLine);
if (displayHandle.HasValue && NVAPI.NvAPI_GetDisplayDriverVersion != null)
{
if (displayHandle.HasValue && NVAPI.NvAPI_GetDisplayDriverVersion != null) {
NvDisplayDriverVersion driverVersion = new NvDisplayDriverVersion();
driverVersion.Version = NVAPI.DISPLAY_DRIVER_VERSION_VER;
if (NVAPI.NvAPI_GetDisplayDriverVersion(displayHandle.Value,
@@ -231,7 +256,7 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
r.Append("Driver Version: ");
r.Append(driverVersion.DriverVersion / 100);
r.Append(".");
r.Append((driverVersion.DriverVersion % 100).ToString("00",
r.Append((driverVersion.DriverVersion % 100).ToString("00",
CultureInfo.InvariantCulture));
r.AppendLine();
r.Append("Driver Branch: ");
@@ -269,7 +294,7 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
r.AppendLine(status.ToString());
}
r.AppendLine();
}
}
if (NVAPI.NvAPI_GPU_GetAllClocks != null) {
NvClocks allClocks = new NvClocks();
@@ -290,10 +315,10 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
r.AppendLine(status.ToString());
}
r.AppendLine();
}
}
if (NVAPI.NvAPI_GPU_GetTachReading != null) {
int tachValue;
int tachValue;
NvStatus status = NVAPI.NvAPI_GPU_GetTachReading(handle, out tachValue);
r.AppendLine("Tachometer");
@@ -332,7 +357,7 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
usages.Version = NVAPI.GPU_USAGES_VER;
usages.Usage = new uint[NVAPI.MAX_USAGES_PER_GPU];
NvStatus status = NVAPI.NvAPI_GPU_GetUsages(handle, ref usages);
r.AppendLine("Usages");
r.AppendLine();
if (status == NvStatus.OK) {
@@ -394,7 +419,7 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
NvMemoryInfo memoryInfo = new NvMemoryInfo();
memoryInfo.Version = NVAPI.GPU_MEMORY_INFO_VER;
memoryInfo.Values = new uint[NVAPI.MAX_MEMORY_VALUES_PER_GPU];
NvStatus status = NVAPI.NvAPI_GPU_GetMemoryInfo(displayHandle.Value,
NvStatus status = NVAPI.NvAPI_GPU_GetMemoryInfo(displayHandle.Value,
ref memoryInfo);
r.AppendLine("Memory Info");
@@ -412,5 +437,45 @@ namespace OpenHardwareMonitor.Hardware.Nvidia {
return r.ToString();
}
private void SoftwareControlValueChanged(IControl control) {
SaveDefaultFanSpeed();
NvGPUCoolerLevels coolerLevels = new NvGPUCoolerLevels();
coolerLevels.Version = NVAPI.GPU_COOLER_LEVELS_VER;
coolerLevels.Levels = new NvLevel[NVAPI.MAX_COOLER_PER_GPU];
coolerLevels.Levels[0].Level = (int)control.SoftwareValue;
coolerLevels.Levels[0].Policy = 1;
NVAPI.NvAPI_GPU_SetCoolerLevels(handle, 0, ref coolerLevels);
}
private void SaveDefaultFanSpeed() {
if (!restoreDefaultFanSpeedRequired) {
NvGPUCoolerSettings coolerSettings = GetCoolerSettings();
if (coolerSettings.Count > 0) {
restoreDefaultFanSpeedRequired = true;
initialFanSpeedValue.Level = coolerSettings.Cooler[0].CurrentLevel;
initialFanSpeedValue.Policy = coolerSettings.Cooler[0].CurrentPolicy;
}
}
}
private void ControlModeChanged(IControl control) {
if (control.ControlMode == ControlMode.Default) {
RestoreDefaultFanSpeed();
} else {
SoftwareControlValueChanged(control);
}
}
private void RestoreDefaultFanSpeed() {
if (restoreDefaultFanSpeedRequired) {
NvGPUCoolerLevels coolerLevels = new NvGPUCoolerLevels();
coolerLevels.Version = NVAPI.GPU_COOLER_LEVELS_VER;
coolerLevels.Levels = new NvLevel[NVAPI.MAX_COOLER_PER_GPU];
coolerLevels.Levels[0] = initialFanSpeedValue;
NVAPI.NvAPI_GPU_SetCoolerLevels(handle, 0, ref coolerLevels);
restoreDefaultFanSpeedRequired = false;
}
}
}
}