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tests/kms_setmode: Add tests when not stealing encoders on same crtc.

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Excercise connector stealing harder. There is a border case in atomic currently where
encoder stealing is not prevented on the same crtc when the encoder is not reassigned.

The following testcase excercises that path and causes a OOPS on my system with nightly.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Maarten Lankhorst 2016-02-23 16:23:26 +01:00
parent 364d3785bf
commit b33a78b9b1
1 changed files with 41 additions and 3 deletions
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44
tests/kms_setmode.c
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@ -70,6 +70,7 @@ enum test_flags {
TEST_CLONE = 0x02,
TEST_SINGLE_CRTC_CLONE = 0x04,
TEST_EXCLUSIVE_CRTC_CLONE = 0x08,
TEST_STEALING = 0x10,
};
struct test_config {
@ -380,6 +381,34 @@ static uint32_t *get_connector_ids(struct crtc_config *crtc)
return ids;
}
static int test_stealing(int drm_fd, const struct crtc_config *crtc, uint32_t *ids)
{
int i, ret = 0;
if (!crtc->connector_count)
return drmModeSetCrtc(drm_fd, crtc->crtc_id,
crtc->fb_info.fb_id, 0, 0,
ids, crtc->connector_count, &crtc->mode);
for (i = 0; i < crtc->connector_count; ++i) {
ret = drmModeSetCrtc(drm_fd, crtc->crtc_id,
crtc->fb_info.fb_id, 0, 0,
&ids[i], 1, &crtc->mode);
igt_assert_eq(ret, 0);
ret = drmModeSetCrtc(drm_fd, crtc->crtc_id,
crtc->fb_info.fb_id, 0, 0,
ids, crtc->connector_count, &crtc->mode);
/* This should fail with -EINVAL */
if (!ret)
return 0;
}
return ret;
}
static void test_crtc_config(const struct test_config *tconf,
struct crtc_config *crtcs, int crtc_count)
{
@ -422,9 +451,13 @@ static void test_crtc_config(const struct test_config *tconf,
paint_fb(&crtc->fb_info, tconf->name, crtc_strs, crtc_count, i);
ids = get_connector_ids(crtc);
ret = drmModeSetCrtc(drm_fd, crtc->crtc_id,
crtc->fb_info.fb_id, 0, 0, ids,
crtc->connector_count, &crtc->mode);
if (tconf->flags & TEST_STEALING)
ret = test_stealing(drm_fd, crtc, ids);
else
ret = drmModeSetCrtc(drm_fd, crtc->crtc_id,
crtc->fb_info.fb_id, 0, 0, ids,
crtc->connector_count, &crtc->mode);
free(ids);
if (ret < 0) {
@ -623,6 +656,9 @@ static void test_combinations(const struct test_config *tconf,
struct connector_config *cconfs;
int i;
if (connector_count > 2 && (tconf->flags & TEST_STEALING))
return;
get_combinations(tconf->resources->count_connectors, connector_count,
false, &connector_combs);
get_combinations(tconf->resources->count_crtcs, connector_count,
@ -700,6 +736,8 @@ int main(int argc, char **argv)
"invalid-clone-exclusive-crtc" },
{ TEST_CLONE | TEST_EXCLUSIVE_CRTC_CLONE,
"clone-exclusive-crtc" },
{ TEST_INVALID | TEST_CLONE | TEST_SINGLE_CRTC_CLONE | TEST_STEALING,
"invalid-clone-single-crtc-stealing" }
};
const char *help_str =
" -d\t\tDon't run any test, only print what would be done. (still needs DRM access)\n"