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igt/drm_read: Require that pipe 0 is active

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As we require a pipe enabled to generate vblanks, the first step is to
then to check that pipe 0 is active or else skip the test.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2014-12-08 07:49:49 +00:00
parent 819e68f2ed
commit 470071d4ab
1 changed files with 44 additions and 1 deletions
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45
tests/drm_read.c
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@ -63,7 +63,7 @@ static void generate_event(int fd)
{
union drm_wait_vblank vbl;
/* We assume that pipe 0 is running */
/* We require that pipe 0 is running */
vbl.request.type =
DRM_VBLANK_RELATIVE |
@ -152,6 +152,48 @@ static void test_short_buffer(int in, int nonblock)
teardown(fd);
}
static int pipe0_enabled(int fd)
{
struct drm_mode_card_res res;
uint32_t crtcs[32];
int i;
/* We assume we can generate events on pipe 0. So we have better
* make sure that is running!
*/
memset(&res, 0, sizeof(res));
res.count_crtcs = 32;
res.crtc_id_ptr = (uintptr_t)crtcs;
if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res))
return 0;
if (res.count_crtcs > 32)
return 0;
for (i = 0; i < res.count_crtcs; i++) {
struct drm_i915_get_pipe_from_crtc_id get_pipe;
struct drm_mode_crtc mode;
memset(&get_pipe, 0, sizeof(get_pipe));
memset(&mode, 0, sizeof(mode));
mode.crtc_id = crtcs[i];
get_pipe.pipe = -1;
get_pipe.crtc_id = mode.crtc_id;
drmIoctl(fd, DRM_IOCTL_I915_GET_PIPE_FROM_CRTC_ID, &get_pipe);
if (get_pipe.pipe)
continue;
drmIoctl(fd, DRM_IOCTL_MODE_GETCRTC, &mode);
return mode.mode_valid && mode.mode.clock;
}
return 0;
}
igt_main
{
int fd;
@ -161,6 +203,7 @@ igt_main
igt_fixture {
fd = drm_open_any_master();
igt_require(pipe0_enabled(fd));
}
igt_subtest("invalid-buffer")