diff options
| -rw-r--r-- | tests/Makefile.am | 1 | ||||
| -rw-r--r-- | tests/pm_rc6_residency.c | 35 |
2 files changed, 26 insertions, 10 deletions
diff --git a/tests/Makefile.am b/tests/Makefile.am index 5aa480b5..c4f1f014 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -85,6 +85,7 @@ gem_userptr_blits_LDADD = $(LDADD) -lpthread gem_wait_LDADD = $(LDADD) -lrt kms_flip_LDADD = $(LDADD) -lrt -lpthread +pm_rc6_residency_LDADD = $(LDADD) -lrt prime_nv_test_CFLAGS = $(AM_CFLAGS) $(DRM_NOUVEAU_CFLAGS) prime_nv_test_LDADD = $(LDADD) $(DRM_NOUVEAU_LIBS) diff --git a/tests/pm_rc6_residency.c b/tests/pm_rc6_residency.c index a1e281cd..27729694 100644 --- a/tests/pm_rc6_residency.c +++ b/tests/pm_rc6_residency.c @@ -32,10 +32,10 @@ #include <string.h> #include <unistd.h> #include <errno.h> +#include <time.h> -#define SLEEP_DURATION 3000 // in milliseconds -#define CODE_TIME 50 // in microseconfs +#define SLEEP_DURATION 3 /* in seconds */ #define RC6_ENABLED 1 #define RC6P_ENABLED 2 @@ -46,6 +46,7 @@ struct residencies { int media_rc6; int rc6p; int rc6pp; + int duration; }; static unsigned int readit(const char *path) @@ -96,14 +97,15 @@ static int read_rc6_residency(const char *name_of_rc6_residency) } static void residency_accuracy(unsigned int diff, + unsigned int duration, const char *name_of_rc6_residency) { double ratio; - ratio = (double)diff / (SLEEP_DURATION + CODE_TIME); + ratio = (double)diff / duration; - igt_info("Residency in %s or deeper state: %u ms (ratio to expected duration: %.02f)\n", - name_of_rc6_residency, diff, ratio); + igt_info("Residency in %s or deeper state: %u ms (sleep duration %u ms) (ratio to expected duration: %.02f)\n", + name_of_rc6_residency, diff, duration, ratio); igt_assert_f(ratio > 0.9 && ratio <= 1, "Sysfs RC6 residency counter is inaccurate.\n"); } @@ -125,12 +127,22 @@ static void read_residencies(int devid, unsigned int rc6_mask, res->rc6pp = read_rc6_residency("rc6pp"); } +static unsigned long gettime_ms(void) +{ + struct timespec ts; + + clock_gettime(CLOCK_MONOTONIC, &ts); + + return ts.tv_sec * 1000 + ts.tv_nsec / 1000000; +} + static void measure_residencies(int devid, unsigned int rc6_mask, struct residencies *res) { struct residencies start = { }; struct residencies end = { }; int retry; + unsigned long t; if (!rc6_mask) return; @@ -147,9 +159,11 @@ static void measure_residencies(int devid, unsigned int rc6_mask, * different platforms and so fixing it up would be non-trivial. */ for (retry = 0; retry < 2; retry++) { + t = gettime_ms(); read_residencies(devid, rc6_mask, &start); - sleep(SLEEP_DURATION / 1000); + sleep(SLEEP_DURATION); read_residencies(devid, rc6_mask, &end); + t = gettime_ms() - t; if (end.rc6 >= start.rc6 && end.media_rc6 >= start.media_rc6 && end.rc6p >= start.rc6p && end.rc6pp >= start.rc6pp) @@ -161,6 +175,7 @@ static void measure_residencies(int devid, unsigned int rc6_mask, res->rc6p = end.rc6p - start.rc6p; res->rc6pp = end.rc6pp - start.rc6pp; res->media_rc6 = end.media_rc6 - start.media_rc6; + res->duration = t; /* * For the purposes of this test case we want a given residency value @@ -196,22 +211,22 @@ igt_main igt_subtest("rc6-accuracy") { igt_skip_on(!(rc6_mask & RC6_ENABLED)); - residency_accuracy(res.rc6, "rc6"); + residency_accuracy(res.rc6, res.duration, "rc6"); } igt_subtest("media-rc6-accuracy") { igt_skip_on(!((rc6_mask & RC6_ENABLED) && (IS_VALLEYVIEW(devid) || IS_CHERRYVIEW(devid)))); - residency_accuracy(res.media_rc6, "media_rc6"); + residency_accuracy(res.media_rc6, res.duration, "media_rc6"); } igt_subtest("rc6p-accuracy") { igt_skip_on(!(rc6_mask & RC6P_ENABLED)); - residency_accuracy(res.rc6p, "rc6p"); + residency_accuracy(res.rc6p, res.duration, "rc6p"); } igt_subtest("rc6pp-accuracy") { igt_skip_on(!(rc6_mask & RC6PP_ENABLED)); - residency_accuracy(res.rc6pp, "rc6pp"); + residency_accuracy(res.rc6pp, res.duration, "rc6pp"); } } |