pm_rps: New subtest min-max-config-loaded

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>

diff --git a/tests/pm_rps.c b/tests/pm_rps.c
index 555bb7c..709e341 100644 (file)
--- a/tests/pm_rps.c
+++ b/tests/pm_rps.c
@@ -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();
 }