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Use a re-entrant value to store what fanspeed we're trying to set in case the card doesn't support small changes.

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Force it to a multiple of 10% if it fails on trying to speed up the fan.
This commit is contained in:
Con Kolivas 2011-09-11 11:25:28 +10:00
parent 076677dd53
commit dff1a81da7
2 changed files with 16 additions and 3 deletions
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18
adl.c
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@ -797,6 +797,9 @@ static int set_fanspeed(int gpu, int iFanSpeed)
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_RPM_WRITE) &&
!(ga->lpFanSpeedInfo.iFlags & ADL_DL_FANCTRL_SUPPORTS_PERCENT_WRITE)) {
@ -868,15 +871,15 @@ void gpu_autotune(int gpu, bool *enable)
if (opt_debug)
applog(LOG_DEBUG, "Temperature over target, increasing fanspeed");
if (temp > ga->targettemp + opt_hysteresis)
newpercent = fanpercent + 10;
newpercent = ga->targetfan + 10;
else
newpercent = fanpercent + 5;
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 = fanpercent - 1;
newpercent = ga->targetfan - 1;
}
if (newpercent > 100)
@ -887,6 +890,15 @@ void gpu_autotune(int gpu, bool *enable)
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);
}
}
}
}

1
miner.h
View File

@ -179,6 +179,7 @@ struct gpu_adl {
bool autoengine;
bool managed; /* Were the values ever changed on this card */
int targetfan;
int targettemp;
int overtemp;
int cutofftemp;