bfgminer/adl.c

#include "config.h"

#if defined(HAVE_ADL) && (defined(__linux) || defined (WIN32))

#include <stdio.h>
#include <curses.h>

#include "miner.h"
#include "ADL_SDK/adl_sdk.h"

#if defined (__linux)
#include <dlfcn.h>
#include <stdlib.h>
#include <unistd.h>
#else /* WIN32 */
#include <windows.h>
#include <tchar.h>
#define sleep(x) Sleep(x)
#endif
#include "adl_functions.h"

bool adl_active;

int opt_hysteresis = 3;
const int opt_targettemp = 75;
const int opt_overheattemp = 85;
const int opt_cutofftemp = 95;
static pthread_mutex_t adl_lock;

// Memory allocation function
static void * __stdcall ADL_Main_Memory_Alloc(int iSize)
{
	void *lpBuffer = malloc(iSize);

	return lpBuffer;
}

// Optional Memory de-allocation function
static void __stdcall ADL_Main_Memory_Free (void **lpBuffer)
{
	if (*lpBuffer) {
		free (*lpBuffer);
		*lpBuffer = NULL;
	}
}

#if defined (LINUX)
// equivalent functions in linux
static void *GetProcAddress(void *pLibrary, const char *name)
{
	return dlsym( pLibrary, name);
}
#endif

static	ADL_MAIN_CONTROL_CREATE		ADL_Main_Control_Create;
static	ADL_MAIN_CONTROL_DESTROY	ADL_Main_Control_Destroy;
static	ADL_ADAPTER_NUMBEROFADAPTERS_GET	ADL_Adapter_NumberOfAdapters_Get;
static	ADL_ADAPTER_ADAPTERINFO_GET	ADL_Adapter_AdapterInfo_Get;
static	ADL_ADAPTER_ID_GET		ADL_Adapter_ID_Get;
static	ADL_OVERDRIVE5_TEMPERATURE_GET	ADL_Overdrive5_Temperature_Get;
static	ADL_OVERDRIVE5_CURRENTACTIVITY_GET	ADL_Overdrive5_CurrentActivity_Get;
static	ADL_OVERDRIVE5_ODPARAMETERS_GET	ADL_Overdrive5_ODParameters_Get;
static	ADL_OVERDRIVE5_FANSPEEDINFO_GET	ADL_Overdrive5_FanSpeedInfo_Get;
static	ADL_OVERDRIVE5_FANSPEED_GET	ADL_Overdrive5_FanSpeed_Get;
static	ADL_OVERDRIVE5_FANSPEED_SET	ADL_Overdrive5_FanSpeed_Set;
static	ADL_OVERDRIVE5_ODPERFORMANCELEVELS_GET	ADL_Overdrive5_ODPerformanceLevels_Get;
static	ADL_OVERDRIVE5_ODPERFORMANCELEVELS_SET	ADL_Overdrive5_ODPerformanceLevels_Set;
static	ADL_MAIN_CONTROL_REFRESH	ADL_Main_Control_Refresh;
static	ADL_OVERDRIVE5_POWERCONTROL_GET	ADL_Overdrive5_PowerControl_Get;
static	ADL_OVERDRIVE5_POWERCONTROL_SET	ADL_Overdrive5_PowerControl_Set;
static	ADL_ADAPTER_SPEED_GET		ADL_Adapter_Speed_Get;
static	ADL_ADAPTER_SPEED_SET		ADL_Adapter_Speed_Set;

#if defined (LINUX)
	static void *hDLL;	// Handle to .so library
#else
	HINSTANCE hDLL;		// Handle to DLL
#endif
static int iNumberAdapters;
static LPAdapterInfo lpInfo = NULL;

static int set_fanspeed(int gpu, int iFanSpeed);

static inline void lock_adl(void)
{
	mutex_lock(&adl_lock);
}

static inline void unlock_adl(void)
{
	mutex_unlock(&adl_lock);
}

void init_adl(int nDevs)
{
	int i, j, devices = 0, last_adapter = -1, gpu = 0, dummy = 0;

#if defined (LINUX)
	hDLL = dlopen( "libatiadlxx.so", RTLD_LAZY|RTLD_GLOBAL);
#else
	hDLL = LoadLibrary("atiadlxx.dll");
	if (hDLL == NULL)
		// A 32 bit calling application on 64 bit OS will fail to LoadLIbrary.
		// Try to load the 32 bit library (atiadlxy.dll) instead
		hDLL = LoadLibrary("atiadlxy.dll");
#endif
	if (hDLL == NULL) {
		applog(LOG_INFO, "Unable to load ati adl library");
		return;
	}

	if (unlikely(pthread_mutex_init(&adl_lock, NULL))) {
		applog(LOG_ERR, "Failed to init adl_lock in init_adl");
		return;
	}

	ADL_Main_Control_Create = (ADL_MAIN_CONTROL_CREATE) GetProcAddress(hDLL,"ADL_Main_Control_Create");
	ADL_Main_Control_Destroy = (ADL_MAIN_CONTROL_DESTROY) GetProcAddress(hDLL,"ADL_Main_Control_Destroy");
	ADL_Adapter_NumberOfAdapters_Get = (ADL_ADAPTER_NUMBEROFADAPTERS_GET) GetProcAddress(hDLL,"ADL_Adapter_NumberOfAdapters_Get");
	ADL_Adapter_AdapterInfo_Get = (ADL_ADAPTER_ADAPTERINFO_GET) GetProcAddress(hDLL,"ADL_Adapter_AdapterInfo_Get");
	ADL_Adapter_ID_Get = (ADL_ADAPTER_ID_GET) GetProcAddress(hDLL,"ADL_Adapter_ID_Get");
	ADL_Overdrive5_Temperature_Get = (ADL_OVERDRIVE5_TEMPERATURE_GET) GetProcAddress(hDLL,"ADL_Overdrive5_Temperature_Get");
	ADL_Overdrive5_CurrentActivity_Get = (ADL_OVERDRIVE5_CURRENTACTIVITY_GET) GetProcAddress(hDLL, "ADL_Overdrive5_CurrentActivity_Get");
	ADL_Overdrive5_ODParameters_Get = (ADL_OVERDRIVE5_ODPARAMETERS_GET) GetProcAddress(hDLL, "ADL_Overdrive5_ODParameters_Get");
	ADL_Overdrive5_FanSpeedInfo_Get = (ADL_OVERDRIVE5_FANSPEEDINFO_GET) GetProcAddress(hDLL, "ADL_Overdrive5_FanSpeedInfo_Get");
	ADL_Overdrive5_FanSpeed_Get = (ADL_OVERDRIVE5_FANSPEED_GET) GetProcAddress(hDLL, "ADL_Overdrive5_FanSpeed_Get");
	ADL_Overdrive5_FanSpeed_Set = (ADL_OVERDRIVE5_FANSPEED_SET) GetProcAddress(hDLL, "ADL_Overdrive5_FanSpeed_Set");
	ADL_Overdrive5_ODPerformanceLevels_Get = (ADL_OVERDRIVE5_ODPERFORMANCELEVELS_GET) GetProcAddress(hDLL, "ADL_Overdrive5_ODPerformanceLevels_Get");
	ADL_Overdrive5_ODPerformanceLevels_Set = (ADL_OVERDRIVE5_ODPERFORMANCELEVELS_SET) GetProcAddress(hDLL, "ADL_Overdrive5_ODPerformanceLevels_Set");
	ADL_Main_Control_Refresh = (ADL_MAIN_CONTROL_REFRESH) GetProcAddress(hDLL, "ADL_Main_Control_Refresh");
	ADL_Overdrive5_PowerControl_Get = (ADL_OVERDRIVE5_POWERCONTROL_GET) GetProcAddress(hDLL, "ADL_Overdrive5_PowerControl_Get");
	ADL_Overdrive5_PowerControl_Set = (ADL_OVERDRIVE5_POWERCONTROL_SET) GetProcAddress(hDLL, "ADL_Overdrive5_PowerControl_Set");
	ADL_Adapter_Speed_Get = (ADL_ADAPTER_SPEED_GET) GetProcAddress(hDLL, "ADL_Adapter_Speed_Get");
	ADL_Adapter_Speed_Set = (ADL_ADAPTER_SPEED_SET) GetProcAddress(hDLL, "ADL_Adapter_Speed_Set");

	if (!ADL_Main_Control_Create || !ADL_Main_Control_Destroy ||
		!ADL_Adapter_NumberOfAdapters_Get || !ADL_Adapter_AdapterInfo_Get ||
		!ADL_Adapter_ID_Get || !ADL_Overdrive5_Temperature_Get ||
		!ADL_Overdrive5_CurrentActivity_Get ||
		!ADL_Overdrive5_ODParameters_Get || !ADL_Overdrive5_FanSpeedInfo_Get ||
		!ADL_Overdrive5_FanSpeed_Get || !ADL_Overdrive5_FanSpeed_Set ||
		!ADL_Overdrive5_ODPerformanceLevels_Get || !ADL_Overdrive5_ODPerformanceLevels_Set ||
		!ADL_Main_Control_Refresh || !ADL_Overdrive5_PowerControl_Get ||
		!ADL_Overdrive5_PowerControl_Set || !ADL_Adapter_Speed_Get ||
		!ADL_Adapter_Speed_Set) {
			applog(LOG_WARNING, "ATI ADL's API is missing");
		return;
	}

	// Initialise ADL. The second parameter is 1, which means:
	// retrieve adapter information only for adapters that are physically present and enabled in the system
	if (ADL_Main_Control_Create (ADL_Main_Memory_Alloc, 1) != ADL_OK) {
		applog(LOG_INFO, "ADL Initialisation Error!");
		return ;
	}

	if (ADL_Main_Control_Refresh() != ADL_OK) {
		applog(LOG_INFO, "ADL Refresh Error!");
		return ;
	}

	// Obtain the number of adapters for the system
	if (ADL_Adapter_NumberOfAdapters_Get ( &iNumberAdapters ) != ADL_OK) {
		applog(LOG_INFO, "Cannot get the number of adapters!\n");
		return ;
	}

	if (iNumberAdapters > 0) {
		lpInfo = malloc ( sizeof (AdapterInfo) * iNumberAdapters );
		memset ( lpInfo,'\0', sizeof (AdapterInfo) * iNumberAdapters );

		// Get the AdapterInfo structure for all adapters in the system
		if (ADL_Adapter_AdapterInfo_Get (lpInfo, sizeof (AdapterInfo) * iNumberAdapters) != ADL_OK) {
			applog(LOG_INFO, "ADL_Adapter_AdapterInfo_Get Error!");
			return ;
		}
	} else {
		applog(LOG_INFO, "No adapters found");
		return;
	}

	for (i = 0; i < iNumberAdapters; i++) {
		struct gpu_adl *ga;
		int iAdapterIndex;
		int lpAdapterID;
		ADLODPerformanceLevels *lpOdPerformanceLevels;
		int lev;

		iAdapterIndex = lpInfo[i].iAdapterIndex;
		/* Get unique identifier of the adapter, 0 means not AMD */
		if (ADL_Adapter_ID_Get(iAdapterIndex, &lpAdapterID) != ADL_OK) {
			applog(LOG_INFO, "Failed to ADL_Adapter_ID_Get");
			continue;
		}

		/* Each adapter may have multiple entries */
		if (lpAdapterID == last_adapter)
			continue;

		/* We found a truly new adapter instead of a logical
		* one. Now since there's no way of correlating the
		* opencl enumerated devices and the ADL enumerated
		* ones, we have to assume they're in the same order.*/
		if (++devices > nDevs) {
			applog(LOG_ERR, "ADL found more devices than opencl");
			return;
		}
		gpu = devices - 1;
		last_adapter = lpAdapterID;

		if (!lpAdapterID) {
			applog(LOG_INFO, "Adapter returns ID 0 meaning not AMD. Card order might be confused");
			continue;
		}

		/* From here on we know this device is a discrete device and
		 * should support ADL */
		ga = &gpus[gpu].adl;
		ga->iAdapterIndex = iAdapterIndex;
		ga->lpAdapterID = lpAdapterID;
		ga->DefPerfLev = NULL;

		/* Save whatever the current speed setting is to restore on exit */
		if (ADL_Adapter_Speed_Get(iAdapterIndex, &ga->lpCurrent, &dummy) != ADL_OK)
			applog(LOG_INFO, "Failed to ADL_Adapter_Speed_Get");

		if (ADL_Overdrive5_ODParameters_Get(iAdapterIndex, &ga->lpOdParameters) != ADL_OK)
			applog(LOG_INFO, "Failed to ADL_Overdrive5_ODParameters_Get");

		lev = ga->lpOdParameters.iNumberOfPerformanceLevels - 1;
		/* We're only interested in the top performance level */
		lpOdPerformanceLevels = malloc(sizeof(ADLODPerformanceLevels) + (lev * sizeof(ADLODPerformanceLevel)));
		lpOdPerformanceLevels->iSize = sizeof(ADLODPerformanceLevels) + sizeof(ADLODPerformanceLevel) * lev;

		/* Get default performance levels first */
		if (ADL_Overdrive5_ODPerformanceLevels_Get(iAdapterIndex, 1, lpOdPerformanceLevels) != ADL_OK)
			applog(LOG_INFO, "Failed to ADL_Overdrive5_ODPerformanceLevels_Get");
		/* Set the limits we'd use based on default gpu speeds */
		ga->maxspeed = ga->minspeed = lpOdPerformanceLevels->aLevels[lev].iEngineClock;

		/* Now get the current performance levels for any existing overclock */
		ADL_Overdrive5_ODPerformanceLevels_Get(iAdapterIndex, 0, lpOdPerformanceLevels);
		/* Save these values as the defaults in case we wish to reset to defaults */
		ga->DefPerfLev = lpOdPerformanceLevels;

		if (gpus[gpu].gpu_engine) {
			int setengine = gpus[gpu].gpu_engine * 100;

			/* Lower profiles can't have a higher setting */
			for (j = 0; j < lev; j++) {
				if (lpOdPerformanceLevels->aLevels[j].iEngineClock > setengine)
					lpOdPerformanceLevels->aLevels[j].iEngineClock = setengine;
			}
			lpOdPerformanceLevels->aLevels[lev].iEngineClock = setengine;
			applog(LOG_INFO, "Setting GPU %d engine clock to %d", gpu, gpus[gpu].gpu_engine);
			ADL_Overdrive5_ODPerformanceLevels_Set(iAdapterIndex, lpOdPerformanceLevels);
			ga->maxspeed = setengine;
			if (gpus[gpu].min_engine)
				ga->minspeed = gpus[gpu].min_engine * 100;
			ga->managed = true;
		}
		if (gpus[gpu].gpu_memclock) {
			int setmem = gpus[gpu].gpu_memclock * 100;

			for (j = 0; j < lev; j++) {
				if (lpOdPerformanceLevels->aLevels[j].iMemoryClock > setmem)
					lpOdPerformanceLevels->aLevels[j].iMemoryClock = setmem;
			}
			lpOdPerformanceLevels->aLevels[lev].iMemoryClock = setmem;
			applog(LOG_INFO, "Setting GPU %d memory clock to %d", gpu, gpus[gpu].gpu_memclock);
			ADL_Overdrive5_ODPerformanceLevels_Set(iAdapterIndex, lpOdPerformanceLevels);
			ga->managed = true;
		}
		if (gpus[gpu].gpu_vddc) {
			int setv = gpus[gpu].gpu_vddc * 1000;

			for (j = 0; j < lev; j++) {
				if (lpOdPerformanceLevels->aLevels[j].iVddc > setv)
					lpOdPerformanceLevels->aLevels[j].iVddc = setv;
			}
			lpOdPerformanceLevels->aLevels[lev].iVddc = setv;
			applog(LOG_INFO, "Setting GPU %d voltage to %.3f", gpu, gpus[gpu].gpu_vddc);
			ADL_Overdrive5_ODPerformanceLevels_Set(iAdapterIndex, lpOdPerformanceLevels);
			ga->managed = true;
		}
		ADL_Overdrive5_ODPerformanceLevels_Get(iAdapterIndex, 0, lpOdPerformanceLevels);
		ga->iEngineClock = lpOdPerformanceLevels->aLevels[lev].iEngineClock;
		ga->iMemoryClock = lpOdPerformanceLevels->aLevels[lev].iMemoryClock;
		ga->iVddc = lpOdPerformanceLevels->aLevels[lev].iVddc;

		if (ADL_Overdrive5_FanSpeedInfo_Get(iAdapterIndex, 0, &ga->lpFanSpeedInfo) != ADL_OK)
			applog(LOG_INFO, "Failed to ADL_Overdrive5_FanSpeedInfo_Get");

		/* Save the fanspeed values as defaults in case we reset later */
		ADL_Overdrive5_FanSpeed_Get(ga->iAdapterIndex, 0, &ga->DefFanSpeedValue);
		if (gpus[gpu].gpu_fan) {
			ADL_Overdrive5_FanSpeed_Get(ga->iAdapterIndex, 0, &ga->lpFanSpeedValue);
			ga->lpFanSpeedValue.iFanSpeed = gpus[gpu].gpu_fan;
			ga->lpFanSpeedValue.iFlags = ADL_DL_FANCTRL_FLAG_USER_DEFINED_SPEED;
			ga->lpFanSpeedValue.iSpeedType = ADL_DL_FANCTRL_SPEED_TYPE_PERCENT;
			applog(LOG_INFO, "Setting GPU %d fan speed to %d%%", gpu, gpus[gpu].gpu_fan);
			ADL_Overdrive5_FanSpeed_Set(ga->iAdapterIndex, 0, &ga->lpFanSpeedValue);
			ga->managed = true;
		} else
			gpus[gpu].gpu_fan = 85; /* Set a nominal upper limit of 85% */

		/* Not fatal if powercontrol get fails */
		if (ADL_Overdrive5_PowerControl_Get(ga->iAdapterIndex, &ga->iPercentage, &dummy) != ADL_OK)
			applog(LOG_INFO, "Failed to ADL_Overdrive5_PowerControl_get");

		if (gpus[gpu].gpu_powertune) {
			ADL_Overdrive5_PowerControl_Set(ga->iAdapterIndex, gpus[gpu].gpu_powertune);
			ADL_Overdrive5_PowerControl_Get(ga->iAdapterIndex, &ga->iPercentage, &dummy);
			ga->managed = true;
		}

		/* Set some default temperatures for autotune when enabled */
		if (!ga->targettemp)
			ga->targettemp = opt_targettemp;
		if (!ga->overtemp)
			ga->overtemp = opt_overheattemp;
		if (!ga->cutofftemp)
			ga->cutofftemp = opt_cutofftemp;
		if (opt_autofan) {
			ga->autofan = true;
			/* Set a safe starting default if we're automanaging fan speeds */
			set_fanspeed(gpu, 85);
			ga->managed = true;
		}
		if (opt_autoengine) {
			ga->autoengine = true;
			ga->managed = true;
		}

		if (ga->managed) {
			if (ADL_Adapter_Speed_Set(iAdapterIndex, ADL_CONTEXT_SPEED_FORCEHIGH) != ADL_OK)
				applog(LOG_INFO, "Failed to ADL_Adapter_Speed_Set");
		}

		gpus[gpu].has_adl = true;

		/* Flag adl as active if any card is successfully activated */
		adl_active = true;
	}
}

static inline float __gpu_temp(struct gpu_adl *ga)
{
	if (ADL_Overdrive5_Temperature_Get(ga->iAdapterIndex, 0, &ga->lpTemperature) != ADL_OK)
		return -1;
	return (float)ga->lpTemperature.iTemperature / 1000;
}

float gpu_temp(int gpu)
{
	struct gpu_adl *ga;
	float ret = -1;

	if (!gpus[gpu].has_adl || !adl_active)
		return ret;

	ga = &gpus[gpu].adl;
	lock_adl();
	ret = __gpu_temp(ga);
	unlock_adl();
	return ret;
}

static inline int __gpu_engineclock(struct gpu_adl *ga)
{
	return ga->lpActivity.iEngineClock / 100;
}

int gpu_engineclock(int gpu)
{
	struct gpu_adl *ga;
	int ret = -1;

	if (!gpus[gpu].has_adl || !adl_active)
		return ret;

	ga = &gpus[gpu].adl;
	lock_adl();
	if (ADL_Overdrive5_CurrentActivity_Get(ga->iAdapterIndex, &ga->lpActivity) != ADL_OK)
		goto out;
	ret = __gpu_engineclock(ga);
out:
	unlock_adl();
	return ret;
}

static inline int __gpu_memclock(struct gpu_adl *ga)
{
	return ga->lpActivity.iMemoryClock / 100;
}

int gpu_memclock(int gpu)
{
	struct gpu_adl *ga;
	int ret = -1;

	if (!gpus[gpu].has_adl || !adl_active)
		return ret;

	ga = &gpus[gpu].adl;
	lock_adl();
	if (ADL_Overdrive5_CurrentActivity_Get(ga->iAdapterIndex, &ga->lpActivity) != ADL_OK)
		goto out;
	ret = __gpu_memclock(ga);
out:
	unlock_adl();
	return ret;
}

static inline float __gpu_vddc(struct gpu_adl *ga)
{
	return (float)ga->lpActivity.iVddc / 1000;
}

float gpu_vddc(int gpu)
{
	struct gpu_adl *ga;
	float ret = -1;

	if (!gpus[gpu].has_adl || !adl_active)
		return ret;

	ga = &gpus[gpu].adl;
	lock_adl();
	if (ADL_Overdrive5_CurrentActivity_Get(ga->iAdapterIndex, &ga->lpActivity) != ADL_OK)
		goto out;
	ret = __gpu_vddc(ga);
out:
	unlock_adl();
	return ret;
}

static inline int __gpu_activity(struct gpu_adl *ga)
{
	if (!ga->lpOdParameters.iActivityReportingSupported)
		return -1;
	return ga->lpActivity.iActivityPercent;
}

int gpu_activity(int gpu)
{
	struct gpu_adl *ga;
	int ret = -1;

	if (!gpus[gpu].has_adl || !adl_active)
		return ret;

	ga = &gpus[gpu].adl;
	lock_adl();
	ret = ADL_Overdrive5_CurrentActivity_Get(ga->iAdapterIndex, &ga->lpActivity);
	unlock_adl();
	if (ret != ADL_OK)
		return ret;
	if (!ga->lpOdParameters.iActivityReportingSupported)
		return ret;
	return ga->lpActivity.iActivityPercent;
}

static inline int __gpu_fanspeed(struct gpu_adl *ga)
{
	if (!(ga->lpFanSpeedInfo.iFlags & ADL_DL_FANCTRL_SUPPORTS_RPM_READ))
		return -1;
	ga->lpFanSpeedValue.iSpeedType = ADL_DL_FANCTRL_SPEED_TYPE_RPM;
	if (ADL_Overdrive5_FanSpeed_Get(ga->iAdapterIndex, 0, &ga->lpFanSpeedValue) != ADL_OK)
		return -1;
	return ga->lpFanSpeedValue.iFanSpeed;
}

int gpu_fanspeed(int gpu)
{
	struct gpu_adl *ga;
	int ret = -1;

	if (!gpus[gpu].has_adl || !adl_active)
		return ret;

	ga = &gpus[gpu].adl;
	lock_adl();
	ret = __gpu_fanspeed(ga);
	unlock_adl();
	return ret;
}

static inline int __gpu_fanpercent(struct gpu_adl *ga)
{
	if (!(ga->lpFanSpeedInfo.iFlags & ADL_DL_FANCTRL_SUPPORTS_PERCENT_READ ))
		return -1;
	ga->lpFanSpeedValue.iSpeedType = ADL_DL_FANCTRL_SPEED_TYPE_PERCENT;
	if (ADL_Overdrive5_FanSpeed_Get(ga->iAdapterIndex, 0, &ga->lpFanSpeedValue) != ADL_OK)
		return -1;
	return ga->lpFanSpeedValue.iFanSpeed;
}

int gpu_fanpercent(int gpu)
{
	struct gpu_adl *ga;
	int ret = -1;

	if (!gpus[gpu].has_adl || !adl_active)
		return ret;

	ga = &gpus[gpu].adl;
	lock_adl();
	ret = __gpu_fanpercent(ga);
	unlock_adl();
	return ret;
}

static inline int __gpu_powertune(struct gpu_adl *ga)
{
	int dummy = 0;

	if (ADL_Overdrive5_PowerControl_Get(ga->iAdapterIndex, &ga->iPercentage, &dummy) != ADL_OK)
		return -1;
	return ga->iPercentage;
}

int gpu_powertune(int gpu)
{
	struct gpu_adl *ga;
	int ret = -1;

	if (!gpus[gpu].has_adl || !adl_active)
		return ret;

	ga = &gpus[gpu].adl;
	lock_adl();
	ret = __gpu_powertune(ga);
	unlock_adl();
	return ret;
}

bool gpu_stats(int gpu, float *temp, int *engineclock, int *memclock, float *vddc,
	       int *activity, int *fanspeed, int *fanpercent, int *powertune)
{
	struct gpu_adl *ga;

	if (!gpus[gpu].has_adl || !adl_active)
		return false;

	ga = &gpus[gpu].adl;

	lock_adl();
	*temp = __gpu_temp(ga);
	if (ADL_Overdrive5_CurrentActivity_Get(ga->iAdapterIndex, &ga->lpActivity) != ADL_OK) {
		*engineclock = 0;
		*memclock = 0;
		*vddc = 0;
		*activity = 0;
	} else {
		*engineclock = __gpu_engineclock(ga);
		*memclock = __gpu_memclock(ga);
		*vddc = __gpu_vddc(ga);
		*activity = __gpu_activity(ga);
	}
	*fanspeed = __gpu_fanspeed(ga);
	*fanpercent = __gpu_fanpercent(ga);
	*powertune = __gpu_powertune(ga);
	unlock_adl();

	return true;
}

static void get_enginerange(int gpu, int *imin, int *imax)
{
	struct gpu_adl *ga;

	if (!gpus[gpu].has_adl || !adl_active) {
		wlogprint("Get enginerange not supported\n");
		return;
	}
	ga = &gpus[gpu].adl;
	*imin = ga->lpOdParameters.sEngineClock.iMin / 100;
	*imax = ga->lpOdParameters.sEngineClock.iMax / 100;
}

static int set_engineclock(int gpu, int iEngineClock)
{
	ADLODPerformanceLevels *lpOdPerformanceLevels;
	int i, lev, ret = 1;
	struct gpu_adl *ga;

	if (!gpus[gpu].has_adl || !adl_active) {
		wlogprint("Set engineclock not supported\n");
		return ret;
	}

	iEngineClock *= 100;
	ga = &gpus[gpu].adl;

	lev = ga->lpOdParameters.iNumberOfPerformanceLevels - 1;
	lpOdPerformanceLevels = alloca(sizeof(ADLODPerformanceLevels) + (lev * sizeof(ADLODPerformanceLevel)));
	lpOdPerformanceLevels->iSize = sizeof(ADLODPerformanceLevels) + sizeof(ADLODPerformanceLevel) * lev;

	lock_adl();
	if (ADL_Overdrive5_ODPerformanceLevels_Get(ga->iAdapterIndex, 0, lpOdPerformanceLevels) != ADL_OK)
		goto out;
	for (i = 0; i < lev; i++) {
		if (lpOdPerformanceLevels->aLevels[i].iEngineClock > iEngineClock)
			lpOdPerformanceLevels->aLevels[i].iEngineClock = iEngineClock;
	}
	lpOdPerformanceLevels->aLevels[lev].iEngineClock = iEngineClock;
	ADL_Overdrive5_ODPerformanceLevels_Set(ga->iAdapterIndex, lpOdPerformanceLevels);
	ADL_Overdrive5_ODPerformanceLevels_Get(ga->iAdapterIndex, 0, lpOdPerformanceLevels);
	if (lpOdPerformanceLevels->aLevels[lev].iEngineClock == iEngineClock)
		ret = 0;
	ga->iEngineClock = lpOdPerformanceLevels->aLevels[lev].iEngineClock;
	if (ga->iEngineClock > ga->maxspeed)
		ga->maxspeed = ga->iEngineClock;
	if (ga->iEngineClock < ga->minspeed)
		ga->minspeed = ga->iEngineClock;
	ga->iMemoryClock = lpOdPerformanceLevels->aLevels[lev].iMemoryClock;
	ga->iVddc = lpOdPerformanceLevels->aLevels[lev].iVddc;
	ga->managed = true;
out:
	unlock_adl();
	return ret;
}

static void get_memoryrange(int gpu, int *imin, int *imax)
{
	struct gpu_adl *ga;

	if (!gpus[gpu].has_adl || !adl_active) {
		wlogprint("Get memoryrange not supported\n");
		return;
	}
	ga = &gpus[gpu].adl;
	*imin = ga->lpOdParameters.sMemoryClock.iMin / 100;
	*imax = ga->lpOdParameters.sMemoryClock.iMax / 100;
}

static int set_memoryclock(int gpu, int iMemoryClock)
{
	ADLODPerformanceLevels *lpOdPerformanceLevels;
	int i, lev, ret = 1;
	struct gpu_adl *ga;

	if (!gpus[gpu].has_adl || !adl_active) {
		wlogprint("Set memoryclock not supported\n");
		return ret;
	}

	iMemoryClock *= 100;
	ga = &gpus[gpu].adl;

	lev = ga->lpOdParameters.iNumberOfPerformanceLevels - 1;
	lpOdPerformanceLevels = alloca(sizeof(ADLODPerformanceLevels) + (lev * sizeof(ADLODPerformanceLevel)));
	lpOdPerformanceLevels->iSize = sizeof(ADLODPerformanceLevels) + sizeof(ADLODPerformanceLevel) * lev;

	lock_adl();
	if (ADL_Overdrive5_ODPerformanceLevels_Get(ga->iAdapterIndex, 0, lpOdPerformanceLevels) != ADL_OK)
		goto out;
	lpOdPerformanceLevels->aLevels[lev].iMemoryClock = iMemoryClock;
	for (i = 0; i < lev; i++) {
		if (lpOdPerformanceLevels->aLevels[i].iMemoryClock > iMemoryClock)
			lpOdPerformanceLevels->aLevels[i].iMemoryClock = iMemoryClock;
	}
	ADL_Overdrive5_ODPerformanceLevels_Set(ga->iAdapterIndex, lpOdPerformanceLevels);
	ADL_Overdrive5_ODPerformanceLevels_Get(ga->iAdapterIndex, 0, lpOdPerformanceLevels);
	if (lpOdPerformanceLevels->aLevels[lev].iMemoryClock == iMemoryClock)
		ret = 0;
	ga->iEngineClock = lpOdPerformanceLevels->aLevels[lev].iEngineClock;
	ga->iMemoryClock = lpOdPerformanceLevels->aLevels[lev].iMemoryClock;
	ga->iVddc = lpOdPerformanceLevels->aLevels[lev].iVddc;
	ga->managed = true;
out:
	unlock_adl();
	return ret;
}

static void get_vddcrange(int gpu, float *imin, float *imax)
{
	struct gpu_adl *ga;

	if (!gpus[gpu].has_adl || !adl_active) {
		wlogprint("Get vddcrange not supported\n");
		return;
	}
	ga = &gpus[gpu].adl;
	*imin = (float)ga->lpOdParameters.sVddc.iMin / 1000;
	*imax = (float)ga->lpOdParameters.sVddc.iMax / 1000;
}

static float curses_float(const char *query)
{
	float ret;
	char *cvar;

	cvar = curses_input(query);
	ret = atof(cvar);
	free(cvar);
	return ret;
}

static int set_vddc(int gpu, float fVddc)
{
	ADLODPerformanceLevels *lpOdPerformanceLevels;
	int i, iVddc, lev, ret = 1;
	struct gpu_adl *ga;

	if (!gpus[gpu].has_adl || !adl_active) {
		wlogprint("Set vddc not supported\n");
		return ret;
	}

	iVddc = 1000 * fVddc;
	ga = &gpus[gpu].adl;

	lev = ga->lpOdParameters.iNumberOfPerformanceLevels - 1;
	lpOdPerformanceLevels = alloca(sizeof(ADLODPerformanceLevels) + (lev * sizeof(ADLODPerformanceLevel)));
	lpOdPerformanceLevels->iSize = sizeof(ADLODPerformanceLevels) + sizeof(ADLODPerformanceLevel) * lev;

	lock_adl();
	if (ADL_Overdrive5_ODPerformanceLevels_Get(ga->iAdapterIndex, 0, lpOdPerformanceLevels) != ADL_OK)
		goto out;
	for (i = 0; i < lev; i++) {
		if (lpOdPerformanceLevels->aLevels[i].iVddc > iVddc)
			lpOdPerformanceLevels->aLevels[i].iVddc = iVddc;
	}
	lpOdPerformanceLevels->aLevels[lev].iVddc = iVddc;
	ADL_Overdrive5_ODPerformanceLevels_Set(ga->iAdapterIndex, lpOdPerformanceLevels);
	ADL_Overdrive5_ODPerformanceLevels_Get(ga->iAdapterIndex, 0, lpOdPerformanceLevels);
	if (lpOdPerformanceLevels->aLevels[lev].iVddc == iVddc)
		ret = 0;
	ga->iEngineClock = lpOdPerformanceLevels->aLevels[lev].iEngineClock;
	ga->iMemoryClock = lpOdPerformanceLevels->aLevels[lev].iMemoryClock;
	ga->iVddc = lpOdPerformanceLevels->aLevels[lev].iVddc;
	ga->managed = true;
out:
	unlock_adl();
	return ret;
}

static void get_fanrange(int gpu, int *imin, int *imax)
{
	struct gpu_adl *ga;

	if (!gpus[gpu].has_adl || !adl_active) {
		wlogprint("Get fanrange not supported\n");
		return;
	}
	ga = &gpus[gpu].adl;
	*imin = ga->lpFanSpeedInfo.iMinPercent;
	*imax = ga->lpFanSpeedInfo.iMaxPercent;
}

static int set_fanspeed(int gpu, int iFanSpeed)
{
	struct gpu_adl *ga;
	int ret = 1;

	if (!gpus[gpu].has_adl || !adl_active) {
		wlogprint("Set fanspeed not supported\n");
		return ret;
	}

	ga = &gpus[gpu].adl;
	if (!(ga->lpFanSpeedInfo.iFlags & (ADL_DL_FANCTRL_SUPPORTS_RPM_WRITE | ADL_DL_FANCTRL_SUPPORTS_PERCENT_WRITE )))
		return ret;

	lock_adl();
	if (ADL_Overdrive5_FanSpeed_Get(ga->iAdapterIndex, 0, &ga->lpFanSpeedValue) != ADL_OK)
		goto out;
	/* Store what fanspeed we're actually aiming for for re-entrant changes
	 * in case this device does not support fine setting changes */
	ga->targetfan = iFanSpeed;
	ga->lpFanSpeedValue.iFlags = ADL_DL_FANCTRL_FLAG_USER_DEFINED_SPEED;
	if (!(ga->lpFanSpeedInfo.iFlags & ADL_DL_FANCTRL_SUPPORTS_PERCENT_WRITE)) {
		/* Must convert speed to an RPM */
		iFanSpeed = ga->lpFanSpeedInfo.iMaxRPM * iFanSpeed / 100;
		ga->lpFanSpeedValue.iSpeedType = ADL_DL_FANCTRL_SPEED_TYPE_RPM;
	} else
		ga->lpFanSpeedValue.iSpeedType = ADL_DL_FANCTRL_SPEED_TYPE_PERCENT;
	ga->lpFanSpeedValue.iFanSpeed = iFanSpeed;
	if (ADL_Overdrive5_FanSpeed_Set(ga->iAdapterIndex, 0, &ga->lpFanSpeedValue) == ADL_OK)
		ret = 0;
	ga->managed = true;
out:
	unlock_adl();
	return ret;
}

static int set_powertune(int gpu, int iPercentage)
{
	int oldPercentage, dummy;
	struct gpu_adl *ga;
	int ret = 1;

	if (!gpus[gpu].has_adl || !adl_active) {
		wlogprint("Set powertune not supported\n");
		return ret;
	}

	ga = &gpus[gpu].adl;
	oldPercentage = ga->iPercentage;

	lock_adl();
	ADL_Overdrive5_PowerControl_Set(ga->iAdapterIndex, iPercentage);
	ADL_Overdrive5_PowerControl_Get(ga->iAdapterIndex, &ga->iPercentage, &dummy);
	if (ga->iPercentage == iPercentage)
		ret = 0;
	ga->managed = true;
	unlock_adl();
	return ret;
}

void gpu_autotune(int gpu, bool *enable)
{
	int temp, fanpercent, engine, newpercent, newengine;
	bool fan_optimal = true;
	struct gpu_adl *ga;

	ga = &gpus[gpu].adl;

	lock_adl();
	temp = __gpu_temp(ga);
	newpercent = fanpercent = __gpu_fanpercent(ga);
	unlock_adl();

	newengine = engine = gpu_engineclock(gpu) * 100;

	if (temp && fanpercent >= 0 && ga->autofan) {
		int top = gpus[gpu].gpu_fan;
		int bot = gpus[gpu].min_fan;

		if (temp > ga->overtemp && fanpercent < 100) {
			applog(LOG_WARNING, "Overheat detected on GPU %d, increasing fan to 100%", gpu);
			newpercent = 100;
		} else if (temp > ga->targettemp && fanpercent < top) {
			if (opt_debug)
				applog(LOG_DEBUG, "Temperature over target, increasing fanspeed");
			if (temp > ga->targettemp + opt_hysteresis)
				newpercent = ga->targetfan + 10;
			else
				newpercent = ga->targetfan + 5;
			if (newpercent > top)
				newpercent = top;
		} else if (fanpercent > bot && temp < ga->targettemp - opt_hysteresis) {
			if (opt_debug)
				applog(LOG_DEBUG, "Temperature %d degrees below target, decreasing fanspeed", opt_hysteresis);
			newpercent = ga->targetfan - 1;
		}

		if (newpercent > 100)
			newpercent = 100;
		else if (newpercent < 0)
			newpercent = 0;
		if (newpercent != fanpercent) {
			fan_optimal = false;
			applog(LOG_INFO, "Setting GPU %d fan percentage to %d", gpu, newpercent);
			set_fanspeed(gpu, newpercent);
			if (newpercent > fanpercent) {
				int changefan = gpu_fanspeed(gpu);

				if (changefan < newpercent) {
					newpercent += 10;
					newpercent -= newpercent % 10;
					set_fanspeed(gpu, newpercent);
				}
			}
		}
	}

	if (engine && ga->autoengine) {
		if (temp > ga->cutofftemp) {
			applog(LOG_WARNING, "Hit thermal cutoff limit on GPU %d, disabling!", gpu);
			*enable = false;
			newengine = ga->minspeed;
		} else if (temp > ga->overtemp && engine > ga->minspeed) {
			applog(LOG_WARNING, "Overheat detected, decreasing GPU %d clock speed", gpu);
			newengine = ga->minspeed;
		} else if (temp > ga->targettemp + opt_hysteresis && engine > ga->minspeed && fan_optimal) {
			if (opt_debug)
				applog(LOG_DEBUG, "Temperature %d degrees over target, decreasing clock speed", opt_hysteresis);
			newengine = engine - ga->lpOdParameters.sEngineClock.iStep;
		} else if (temp < ga->targettemp && engine < ga->maxspeed) {
			if (opt_debug)
				applog(LOG_DEBUG, "Temperature below target, increasing clock speed");
			newengine = engine + ga->lpOdParameters.sEngineClock.iStep;
		}

		if (newengine > ga->maxspeed)
			newengine = ga->maxspeed;
		else if (newengine < ga->minspeed)
			newengine = ga->minspeed;
		if (newengine != engine) {
			newengine /= 100;
			applog(LOG_INFO, "Setting GPU %d engine clock to %d", gpu, newengine);
			set_engineclock(gpu, newengine);
		}
	}
}

void set_defaultfan(int gpu)
{
	struct gpu_adl *ga;
	if (!gpus[gpu].has_adl || !adl_active)
		return;

	ga = &gpus[gpu].adl;
	lock_adl();
	ADL_Overdrive5_FanSpeed_Set(ga->iAdapterIndex, 0, &ga->DefFanSpeedValue);
	unlock_adl();
}

void set_defaultengine(int gpu)
{
	struct gpu_adl *ga;
	if (!gpus[gpu].has_adl || !adl_active)
		return;

	ga = &gpus[gpu].adl;
	lock_adl();
	ADL_Overdrive5_ODPerformanceLevels_Set(ga->iAdapterIndex, ga->DefPerfLev);
	unlock_adl();
}

void change_autosettings(int gpu)
{
	struct gpu_adl *ga = &gpus[gpu].adl;
	char input;
	int val;

	wlogprint("Target temperature: %d\n", ga->targettemp);
	wlogprint("Overheat temperature: %d\n", ga->overtemp);
	wlogprint("Cutoff temperature: %d\n", ga->cutofftemp);
	wlogprint("Toggle [F]an auto [G]PU auto\nChange [T]arget [O]verheat [C]utoff\n");
	wlogprint("Or press any other key to continue\n");
	input = getch();
	if (!strncasecmp(&input, "f", 1)) {
		ga->autofan ^= true;
		wlogprint("Fan autotune is now %s\n", ga->autofan ? "enabled" : "disabled");
		if (!ga->autofan) {
			wlogprint("Resetting fan to startup settings\n");
			set_defaultfan(gpu);
		}
	} else if (!strncasecmp(&input, "g", 1)) {
		ga->autoengine ^= true;
		wlogprint("GPU engine clock autotune is now %s\n", ga->autoengine ? "enabled" : "disabled");
		if (!ga->autoengine) {
			wlogprint("Resetting GPU engine clock to startup settings\n");
			set_defaultengine(gpu);
		}
	} else if (!strncasecmp(&input, "t", 1)) {
		val = curses_int("Enter target temperature for this GPU in C (0-200)");
		if (val < 0 || val > 200)
			wlogprint("Invalid temperature");
		else
			ga->targettemp = val;
	} else if (!strncasecmp(&input, "o", 1)) {
		wlogprint("Enter overheat temperature for this GPU in C (%d+)", ga->targettemp);
		val = curses_int("");
		if (val <= ga->targettemp || val > 200)
			wlogprint("Invalid temperature");
		else
			ga->overtemp = val;
	} else if (!strncasecmp(&input, "c", 1)) {
		wlogprint("Enter cutoff temperature for this GPU in C (%d+)", ga->overtemp);
		val = curses_int("");
		if (val <= ga->overtemp || val > 200)
			wlogprint("Invalid temperature");
		else
			ga->cutofftemp = val;
	}
}

void change_gpusettings(int gpu)
{
	struct gpu_adl *ga = &gpus[gpu].adl;
	float fval, fmin = 0, fmax = 0;
	int val, imin = 0, imax = 0;
	char input;
	int engineclock = 0, memclock = 0, activity = 0, fanspeed = 0, fanpercent = 0, powertune = 0;
	float temp = 0, vddc = 0;

updated:
	if (gpu_stats(gpu, &temp, &engineclock, &memclock, &vddc, &activity, &fanspeed, &fanpercent, &powertune))
	wlogprint("Temp: %.1f C\n", temp);
	if (fanpercent >= 0 || fanspeed >= 0) {
		wlogprint("Fan Speed: ");
		if (fanpercent >= 0)
			wlogprint("%d%% ", fanpercent);
		if (fanspeed >= 0)
			wlogprint("(%d RPM)", fanspeed);
		wlogprint("\n");
	}
	wlogprint("Engine Clock: %d MHz\nMemory Clock: %d Mhz\nVddc: %.3f V\nActivity: %d%%\nPowertune: %d%%\n",
		engineclock, memclock, vddc, activity, powertune);
	wlogprint("Fan autotune is %s (%d-%d)\n", ga->autofan ? "enabled" : "disabled",
		  gpus[gpu].min_fan, gpus[gpu].gpu_fan);
	wlogprint("GPU engine clock autotune is %s (%d-%d)\n", ga->autoengine ? "enabled" : "disabled",
		ga->minspeed / 100, ga->maxspeed / 100);
	wlogprint("Change [A]utomatic [E]ngine [F]an [M]emory [V]oltage [P]owertune\n");
	wlogprint("Or press any other key to continue\n");
	input = getch();

	if (!strncasecmp(&input, "a", 1)) {
		change_autosettings(gpu);
	} else if (!strncasecmp(&input, "e", 1)) {
		get_enginerange(gpu, &imin, &imax);
		wlogprint("Enter GPU engine clock speed (%d - %d Mhz)", imin, imax);
		val = curses_int("");
		if (val < imin || val > imax) {
			wlogprint("Value is outside safe range, are you sure?\n");
			input = getch();
			if (strncasecmp(&input, "y", 1))
				return;
		}
		if (!set_engineclock(gpu, val))
			wlogprint("Driver reports success but check values below\n");
		else
			wlogprint("Failed to modify engine clock speed\n");
	} else if (!strncasecmp(&input, "f", 1)) {
		get_fanrange(gpu, &imin, &imax);
		wlogprint("Enter fan percentage (%d - %d %)", imin, imax);
		val = curses_int("");
		if (val < imin || val > imax) {
			wlogprint("Value is outside safe range, are you sure?\n");
			input = getch();
			if (strncasecmp(&input, "y", 1))
				return;
		}
		if (!set_fanspeed(gpu, val))
			wlogprint("Driver reports success but check values below\n");
		else
			wlogprint("Failed to modify fan speed\n");
	} else if (!strncasecmp(&input, "m", 1)) {
		get_memoryrange(gpu, &imin, &imax);
		wlogprint("Enter GPU memory clock speed (%d - %d Mhz)", imin, imax);
		val = curses_int("");
		if (val < imin || val > imax) {
			wlogprint("Value is outside safe range, are you sure?\n");
			input = getch();
			if (strncasecmp(&input, "y", 1))
				return;
		}
		if (!set_memoryclock(gpu, val))
			wlogprint("Driver reports success but check values below\n");
		else
			wlogprint("Failed to modify memory clock speed\n");
	} else if (!strncasecmp(&input, "v", 1)) {
		get_vddcrange(gpu, &fmin, &fmax);
		wlogprint("Enter GPU voltage (%.3f - %.3f V)", fmin, fmax);
		fval = curses_float("");
		if (fval < fmin || fval > fmax) {
			wlogprint("Value is outside safe range, are you sure?\n");
			input = getch();
			if (strncasecmp(&input, "y", 1))
				return;
		}
		if (!set_vddc(gpu, fval))
			wlogprint("Driver reports success but check values below\n");
		else
			wlogprint("Failed to modify voltage\n");
	} else if (!strncasecmp(&input, "p", 1)) {
		val = curses_int("Enter powertune value (-20 - 20)");
		if (val < -20 || val > 20) {
			wlogprint("Value is outside safe range, are you sure?\n");
			input = getch();
			if (strncasecmp(&input, "y", 1))
				return;
		}
		if (!set_powertune(gpu, val))
			wlogprint("Driver reports success but check values below\n");
		else
			wlogprint("Failed to modify powertune value\n");
	} else
		return;
	sleep(1);
	goto updated;
}

void clear_adl(nDevs)
{
	struct gpu_adl *ga;
	int i;

	if (!adl_active)
		return;

	lock_adl();
	/* Try to reset values to their defaults */
	for (i = 0; i < nDevs; i++) {
		ga = &gpus[i].adl;
		/*  Only reset the values if we've changed them at any time */
		if (!gpus[i].has_adl || !ga->managed)
			continue;
		ADL_Adapter_Speed_Set(ga->iAdapterIndex, ga->lpCurrent);
		ADL_Overdrive5_ODPerformanceLevels_Set(ga->iAdapterIndex, ga->DefPerfLev);
		free(ga->DefPerfLev);
		ADL_Overdrive5_FanSpeed_Set(ga->iAdapterIndex, 0, &ga->DefFanSpeedValue);
	}

	ADL_Main_Memory_Free ( (void **)&lpInfo );
	ADL_Main_Control_Destroy ();
	unlock_adl();

#if defined (LINUX)
	dlclose(hDLL);
#else
	FreeLibrary(hDLL);
#endif
}
#endif /* HAVE_ADL */