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Commit b15128de authored by Lucille Sylvester's avatar Lucille Sylvester
Browse files

msm: kgsl: convert pwrscale to use bus_mod 



Use a bus specific speed flag rather than overloading
the least upper bound flag.

Change-Id: I343726e6e0d9885f39c343ed56c1667ab2008aee
Signed-off-by: default avatarLucille Sylvester <lsylvest@codeaurora.org>
parent 944cc1fe

drivers/devfreq/governor_msm_adreno_tz.c

+4 −2
Original line number Diff line number Diff line
@@ -88,7 +88,7 @@ static int tz_get_target_freq(struct devfreq *devfreq, unsigned long *freq, 
	 */

	if ((stats.total_time == 0) ||

		(priv->bin.total_time < FLOOR)) {

		return 0;

		return 1;

	}



	level = devfreq_get_freq_level(devfreq, stats.current_frequency);
@@ -125,8 +125,10 @@ static int tz_get_target_freq(struct devfreq *devfreq, unsigned long *freq, 
	 * By setting freq as UINT_MAX we notify the kgsl target function

	 * to go up one power level without considering the freq value

	 */

	if (val < 0)

	if (val < 0) {

		*flag = DEVFREQ_FLAG_FAST_HINT;

		*freq = UINT_MAX;

	}



	return 0;

}

drivers/gpu/msm/kgsl_pwrscale.c

+5 −6
Original line number Diff line number Diff line
@@ -176,7 +176,7 @@ int kgsl_devfreq_target(struct device *dev, unsigned long *freq, u32 flags) 
	struct kgsl_pwrctrl *pwr;

	int level = -1, i;

	unsigned long cur_freq;

	int lubflag = 0;

	int bus_mod = 0;



	if (device == NULL)

		return -ENODEV;
@@ -185,20 +185,19 @@ int kgsl_devfreq_target(struct device *dev, unsigned long *freq, u32 flags) 
	profile = &device->pwrscale.profile;

	pwr = &device->pwrctrl;



	if (flags & DEVFREQ_FLAG_LEAST_UPPER_BOUND)

		lubflag = 1;

	if (flags & DEVFREQ_FLAG_FAST_HINT)

		bus_mod = 1;



	mutex_lock(&device->mutex);

	cur_freq = kgsl_pwrctrl_active_freq(pwr);



	if (*freq > cur_freq && pwr->active_pwrlevel > 0) {

		/*

		 * If LUB - Least Upper Bound - is requested

		 *                 - move up just one level,

		 * If FAST is requested, move up just one level,

		 * otherwise - move up until required freq or higher

		 */

		level = pwr->active_pwrlevel - 1;

		if (!lubflag)

		if (!bus_mod)

			while (*freq > pwr->pwrlevels[level].gpu_freq

					&& level > 0)

				level--;

include/linux/devfreq.h

+3 −0
Original line number Diff line number Diff line
@@ -52,6 +52,9 @@ struct devfreq_dev_status { 
 */

#define DEVFREQ_FLAG_LEAST_UPPER_BOUND		0x1



#define DEVFREQ_FLAG_FAST_HINT	0x2

#define DEVFREQ_FLAG_SLOW_HINT	0x4



/**

 * struct devfreq_governor_data - mapping to per device governor data

 * @name:		The name of the governor.