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tests/flip_test: check whether timestamp isn't in the past

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This is mostly useful for when we add support for other clock sources,
e.g. clock_monotic, to check whether the kernel picked the right
clock.
This commit is contained in:
Daniel Vetter 2012-10-02 15:42:34 +02:00
parent 73af035c59
commit 6b034a6fd6
1 changed files with 9 additions and 0 deletions
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9
tests/flip_test.c
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@ -70,6 +70,7 @@ struct test_output {
unsigned int current_fb_id;
unsigned int fb_ids[2];
struct kmstest_fb fb_info[2];
struct timeval last_flip_ts;
};
static void emit_dummy_load(struct test_output *o)
@ -166,6 +167,11 @@ static void page_flip_handler(int fd, unsigned int frame, unsigned int sec,
exit(5);
}
if (!timercmp(&o->last_flip_ts, &now, <)) {
fprintf(stderr, "pageflip ts before the pageflip was issued!\n");
exit(6);
}
o->count++;
o->current_fb_id = !o->current_fb_id;
@ -183,6 +189,8 @@ static void page_flip_handler(int fd, unsigned int frame, unsigned int sec,
if (o->flags & TEST_DPMS)
do_or_die(set_dpms(o, DRM_MODE_DPMS_OFF));
o->last_flip_ts = now;
}
static void connector_find_preferred_mode(struct test_output *o, int crtc_id)
@ -358,6 +366,7 @@ static void flip_mode(struct test_output *o, int crtc, int duration)
evctx.page_flip_handler = page_flip_handler;
gettimeofday(&end, NULL);
gettimeofday(&o->last_flip_ts, NULL);
end.tv_sec += duration;
while (1) {