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Commit 846b716f authored by Deepak Kumar's avatar Deepak Kumar Committed by Gerrit - the friendly Code Review server
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msm: kgsl: Ensure that thermal power level restrictions are enforced 



Add checks to make sure thermal power level restrictions are
enforced and power level is always within thermal min and max
limit. Currently, thermal limits are breached in cases where
GPU min_pwrlevel and max_pwrlevel sysfs entries are updated by
performance daemon to maintain performance and thermal mitigation
kicks in at same time.

Change-Id: Id3f0c2d878588633398d20d43223b26ec292b98e
Signed-off-by: default avatarDeepak Kumar <dkumar@codeaurora.org>
parent cf8acfa8

drivers/gpu/msm/kgsl_pwrctrl.c

+6 −0
Original line number Diff line number Diff line
@@ -169,6 +169,12 @@ static unsigned int _adjust_pwrlevel(struct kgsl_pwrctrl *pwr, int level, 
					pwr->thermal_pwrlevel_floor,

					pwr->min_pwrlevel);



	/* Ensure that max/min pwrlevels are within thermal max/min limits */

	max_pwrlevel = min_t(unsigned int, max_pwrlevel,

					pwr->thermal_pwrlevel_floor);

	min_pwrlevel = max_t(unsigned int, min_pwrlevel,

					pwr->thermal_pwrlevel);



	switch (pwrc->type) {

	case KGSL_CONSTRAINT_PWRLEVEL: {

		switch (pwrc->sub_type) {