From: Jeff McGee <jeff.mcgee@xxxxxxxxx>
Like subtest basic-api, but additionally requires that current
frequency is settling to the configured minimum within reasonable
time since we are idle.
Signed-off-by: Jeff McGee <jeff.mcgee@xxxxxxxxx>
---
tests/pm_rps.c | 31 ++++++++++++++++++++++++++++++-
1 file changed, 30 insertions(+), 1 deletion(-)
diff --git a/tests/pm_rps.c b/tests/pm_rps.c
index 7d9069a..dabc2ba 100644
--- a/tests/pm_rps.c
+++ b/tests/pm_rps.c
@@ -204,9 +204,12 @@ static void min_max_config(void (*check)(void))
log("\nIncrease max above RP0 (invalid)...\n");
writeval_inval(stuff[MAX].filp, origfreqs[RP0] + 1000);
check();
+
+ writeval(stuff[MIN].filp, origfreqs[MIN]);
+ writeval(stuff[MAX].filp, origfreqs[MAX]);
}
-static void idle_check(void)
+static void basic_check(void)
{
int freqs[NUMFREQ];
@@ -215,6 +218,29 @@ static void idle_check(void)
checkit(freqs);
}
+#define IDLE_WAIT_TIMESTEP_MSEC 100
+#define IDLE_WAIT_TIMEOUT_MSEC 3000
+static void idle_check(void)
+{
+ int freqs[NUMFREQ];
+ int wait = 0;
+
+ /* Monitor frequencies until cur settles down to min, which should
+ * happen within the allotted time */
+ do {
+ read_freqs(freqs);
+ dump(freqs);
+ checkit(freqs);
+ if (freqs[CUR] == freqs[MIN])
+ break;
+ usleep(1000 * IDLE_WAIT_TIMESTEP_MSEC);
+ wait += IDLE_WAIT_TIMESTEP_MSEC;
+ } while (wait < IDLE_WAIT_TIMEOUT_MSEC);
+
+ igt_assert(freqs[CUR] == freqs[MIN]);
+ log("Required %d msec to reach cur=min\n", wait);
+}
+
static void pm_rps_exit_handler(int sig)
{
if (origfreqs[MIN] > readval(stuff[MAX].filp)) {
@@ -291,6 +317,9 @@ int main(int argc, char **argv)
}
igt_subtest("basic-api")
+ min_max_config(basic_check);
+
+ igt_subtest("min-max-config-idle")
min_max_config(idle_check);
igt_exit();
--
1.8.5.2
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
