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Merge "msm: kgsl: Bump the GPU frequency for long blocks of processing"

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Linux Build Service Account 2014-12-03 01:34:20 -08:00 committed by Gerrit - the friendly Code Review server
parent 92239b1675 86ff3d538c
commit dca34e2b69
1 changed files with 21 additions and 1 deletions
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22
drivers/devfreq/governor_msm_adreno_tz.c
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@ -35,6 +35,13 @@ static DEFINE_SPINLOCK(tz_lock);
* MIN_BUSY is 1 msec for the sample to be sent
*/
#define MIN_BUSY 1000
/*
* Use BUSY_BIN to check for fully busy rendering
* intervals that may need early intervention when
* seen with LONG_FRAME lengths
*/
#define BUSY_BIN 95
#define LONG_FRAME 25000
#define MAX_TZ_VERSION 0
/*
@ -177,6 +184,7 @@ static int tz_get_target_freq(struct devfreq *devfreq, unsigned long *freq,
struct devfreq_dev_status stats;
int val, level = 0;
unsigned int scm_data[3];
static int busy_bin, frame_flag;
/* keeps stats.private_data == NULL */
result = devfreq->profile->get_dev_status(devfreq->dev.parent, &stats);
@ -201,6 +209,15 @@ static int tz_get_target_freq(struct devfreq *devfreq, unsigned long *freq,
return 0;
}
if ((stats.busy_time * 100 / stats.total_time) > BUSY_BIN) {
busy_bin += stats.busy_time;
if (stats.total_time > LONG_FRAME)
frame_flag = 1;
} else {
busy_bin = 0;
frame_flag = 0;
}
level = devfreq_get_freq_level(devfreq, stats.current_frequency);
if (level < 0) {
pr_err(TAG "bad freq %ld\n", stats.current_frequency);
@ -211,8 +228,11 @@ static int tz_get_target_freq(struct devfreq *devfreq, unsigned long *freq,
* If there is an extended block of busy processing,
* increase frequency. Otherwise run the normal algorithm.
*/
if (priv->bin.busy_time > CEILING) {
if (priv->bin.busy_time > CEILING ||
(busy_bin > CEILING && frame_flag)) {
val = -1 * level;
busy_bin = 0;
frame_flag = 0;
} else {
scm_data[0] = level;