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tests/kms_flip: nasty power management tests

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These check whether everything is still ok wrt vblank handling after
runtime pm and system suspend-resume.

In addition to the usual checks they also ensure that the vblank frame
counter isn't totally ridiculous, something Keith complained about
aeons ago. With Ville's drm_vblank_on/off rework this should now be
fixed and solid.

v2:
- Ignore seq_step, vblanks completely immediately when the crtc goes off
- Only run system suspend/resume tests once.

Cc: Keith Packard <keithp@keithp.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2014-05-14 17:59:02 +02:00
parent bd521b493e
commit 6727de0c1a
1 changed files with 40 additions and 5 deletions
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45
tests/kms_flip.c
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@ -71,6 +71,9 @@
#define TEST_ENOENT (1 << 22)
#define TEST_FENCE_STRESS (1 << 23)
#define TEST_VBLANK_RACE (1 << 24)
#define TEST_RPM (1 << 25)
#define TEST_SUSPEND (1 << 26)
#define TEST_TS_CONT (1 << 27)
#define EVENT_FLIP (1 << 0)
#define EVENT_VBLANK (1 << 1)
@ -551,14 +554,24 @@ static void check_state(struct test_output *o, struct event_state *es)
es->name, es->name,
(int) diff.tv_sec, (int) diff.tv_usec);
/* This bounding matches the one in DRM_IOCTL_WAIT_VBLANK. */
if (!(o->flags & (TEST_DPMS | TEST_MODESET))) {
/* check only valid if no modeset happens in between, that
* increments by (1 << 23) on each step. */
/* check only valid if no modeset happens in between, that increments by
* (1 << 23) on each step. This bounding matches the one in
* DRM_IOCTL_WAIT_VBLANK. */
if (!(o->flags & (TEST_DPMS | TEST_MODESET)))
igt_assert_f(es->current_seq - (es->last_seq + o->seq_step) <= 1UL << 23,
"unexpected %s seq %u, should be >= %u\n",
es->name, es->current_seq, es->last_seq + o->seq_step);
/* Check that the vblank frame didn't wrap unexpectedly. */
if (o->flags & TEST_TS_CONT) {
/* Ignore seq_step here since vblank waits time out immediately
* when we kill the crtc. */
igt_assert_f(es->current_seq - es->last_seq >= 0,
"unexpected %s seq %u, should be >= %u\n",
es->name, es->current_seq, es->last_seq);
igt_assert_f(es->current_seq - es->last_seq <= 100,
"unexpected %s seq %u, should be < %u\n",
es->name, es->current_seq, es->last_seq + 100);
}
if ((o->flags & TEST_CHECK_TS) && (!analog_tv_connector(o))) {
@ -919,6 +932,12 @@ static unsigned int run_test_step(struct test_output *o)
"failed to disable output: %s\n",
strerror(errno));
if (o->flags & TEST_RPM)
igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
if (o->flags & TEST_SUSPEND)
igt_system_suspend_autoresume();
if (do_vblank && (o->flags & TEST_EINVAL) && o->vblank_state.count > 0)
igt_assert(do_wait_for_vblank(o, o->pipe, target_seq, &vbl_reply)
== -EINVAL);
@ -1312,6 +1331,10 @@ static int run_test(int duration, int flags)
igt_require((flags & TEST_HANG) == 0 || !is_hung(drm_fd));
if (flags & TEST_RPM)
igt_require(igt_setup_runtime_pm());
resources = drmModeGetResources(drm_fd);
igt_assert(resources);
@ -1516,6 +1539,10 @@ int main(int argc, char **argv)
{ 0, TEST_ENOENT | TEST_NOEVENT, "nonexisting-fb" },
{ 10, TEST_DPMS_OFF | TEST_DPMS | TEST_VBLANK_RACE, "dpms-vs-vblank-race" },
{ 10, TEST_MODESET | TEST_VBLANK_RACE, "modeset-vs-vblank-race" },
{ 10, TEST_VBLANK | TEST_DPMS | TEST_RPM | TEST_TS_CONT, "dpms-vs-rpm" },
{ 10, TEST_VBLANK | TEST_DPMS | TEST_SUSPEND | TEST_TS_CONT, "dpms-vs-suspend" },
{ 0, TEST_VBLANK | TEST_MODESET | TEST_RPM | TEST_TS_CONT, "modeset-vs-rpm" },
{ 0, TEST_VBLANK | TEST_MODESET | TEST_SUSPEND | TEST_TS_CONT, "modeset-vs-suspend" },
};
int i;
@ -1541,6 +1568,10 @@ int main(int argc, char **argv)
if (tests[i].flags & TEST_NO_2X_OUTPUT)
continue;
/* code doesn't disable all crtcs, so skip rpm tests */
if (tests[i].flags & TEST_RPM)
continue;
igt_subtest_f( "2x-%s", tests[i].name)
run_pair(tests[i].duration, tests[i].flags);
}
@ -1559,6 +1590,10 @@ int main(int argc, char **argv)
if (tests[i].flags & TEST_NO_2X_OUTPUT)
continue;
/* code doesn't disable all crtcs, so skip rpm tests */
if (tests[i].flags & TEST_RPM)
continue;
igt_subtest_f( "2x-%s-interruptible", tests[i].name)
run_pair(tests[i].duration, tests[i].flags);
}