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pm_rps: New subtest min-max-config-loaded

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Like subtest basic-api, but additionally requires that current
frequency is increasing to the configured maximum within reasonable
time since we are loaded.

Signed-off-by: Jeff McGee <jeff.mcgee@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Jeff McGee 2014-01-28 18:25:06 -06:00 committed by Daniel Vetter
parent ceb14b1905
commit 2cbb0fbf5f
1 changed files with 29 additions and 0 deletions
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29
tests/pm_rps.c
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@ -371,6 +371,29 @@ static void idle_check(void)
log("Required %d msec to reach cur=min\n", wait);
}
#define LOADED_WAIT_TIMESTEP_MSEC 100
#define LOADED_WAIT_TIMEOUT_MSEC 3000
static void loaded_check(void)
{
int freqs[NUMFREQ];
int wait = 0;
/* Monitor frequencies until cur increases to max, which should
* happen within the allotted time */
do {
read_freqs(freqs);
dump(freqs);
checkit(freqs);
if (freqs[CUR] == freqs[MAX])
break;
usleep(1000 * LOADED_WAIT_TIMESTEP_MSEC);
wait += LOADED_WAIT_TIMESTEP_MSEC;
} while (wait < LOADED_WAIT_TIMEOUT_MSEC);
igt_assert(freqs[CUR] == freqs[MAX]);
log("Required %d msec to reach cur=max\n", wait);
}
static void pm_rps_exit_handler(int sig)
{
if (origfreqs[MIN] > readval(stuff[MAX].filp)) {
@ -456,5 +479,11 @@ int main(int argc, char **argv)
igt_subtest("min-max-config-idle")
min_max_config(idle_check);
igt_subtest("min-max-config-loaded") {
load_helper_run();
min_max_config(loaded_check);
load_helper_stop();
}
igt_exit();
}