[Intel-gfx] [PATCH i-g-t] tests: atomic: add test to verify page flip event emissions
Daniel Vetter
daniel at ffwll.ch
Fri Apr 22 12:59:36 UTC 2016
On Thu, Apr 21, 2016 at 05:01:31PM +0100, Lionel Landwerlin wrote:
> It seems we don't have a test verifying events with atomic commits
> yet. Here is a first step.
>
> Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
Feel like also making a testcase variant for the other cases of crtc's
ACTIVE property?
- off -> off: kernel should reject event generation
- off -> on: kernel should generate event, and the frame counter should be
just a few frames less (at most) than what you get from the vblank ioctl
right after the modeset completes
- on -> off: same as off -> on but in reverse
Would be awesome ...
-Daniel
> ---
> tests/kms_atomic.c | 137 +++++++++++++++++++++++++++++++++++++++++++++++++----
> 1 file changed, 127 insertions(+), 10 deletions(-)
>
> diff --git a/tests/kms_atomic.c b/tests/kms_atomic.c
> index f27ee46..bc75108 100644
> --- a/tests/kms_atomic.c
> +++ b/tests/kms_atomic.c
> @@ -252,10 +252,10 @@ static uint32_t blob_duplicate(int fd, uint32_t id_orig)
> plane_check_current_state(plane_old, relax); \
> }
>
> -#define plane_commit_atomic(plane, req, relax) { \
> +#define plane_commit_atomic(plane, req, flags, relax) { \
> drmModeAtomicSetCursor(req, 0); \
> plane_populate_req(plane, req); \
> - do_atomic_commit((plane)->state->desc->fd, req, 0); \
> + do_atomic_commit((plane)->state->desc->fd, req, flags); \
> plane_check_current_state(plane, relax); \
> }
>
> @@ -886,10 +886,10 @@ static void plane_overlay(struct kms_atomic_crtc_state *crtc,
>
> /* Enable the overlay plane using the atomic API, and double-check
> * state is what we think it should be. */
> - plane_commit_atomic(&plane, req, ATOMIC_RELAX_NONE);
> + plane_commit_atomic(&plane, req, 0, ATOMIC_RELAX_NONE);
>
> /* Disable the plane and check the state matches the old. */
> - plane_commit_atomic(plane_old, req, ATOMIC_RELAX_NONE);
> + plane_commit_atomic(plane_old, req, 0, ATOMIC_RELAX_NONE);
>
> /* Re-enable the plane through the legacy plane API, and verify through
> * atomic. */
> @@ -983,10 +983,10 @@ static void plane_cursor(struct kms_atomic_crtc_state *crtc,
>
> /* Flip the cursor plane using the atomic API, and double-check
> * state is what we think it should be. */
> - plane_commit_atomic(&plane, req, ATOMIC_RELAX_NONE);
> + plane_commit_atomic(&plane, req, 0, ATOMIC_RELAX_NONE);
>
> /* Restore the cursor plane and check the state matches the old. */
> - plane_commit_atomic(plane_old, req, ATOMIC_RELAX_NONE);
> + plane_commit_atomic(plane_old, req, 0, ATOMIC_RELAX_NONE);
>
> /* Re-enable the plane through the legacy cursor API, and verify
> * through atomic. */
> @@ -1010,7 +1010,7 @@ static void plane_cursor(struct kms_atomic_crtc_state *crtc,
> plane_check_current_state(plane_old, ATOMIC_RELAX_NONE);
>
> /* Finally, restore to the original state. */
> - plane_commit_atomic(plane_old, req, ATOMIC_RELAX_NONE);
> + plane_commit_atomic(plane_old, req, 0, ATOMIC_RELAX_NONE);
>
> drmModeAtomicFree(req);
> }
> @@ -1043,7 +1043,7 @@ static void plane_invalid_params(struct kms_atomic_crtc_state *crtc,
> ATOMIC_RELAX_NONE, EINVAL);
>
> plane.fb_id = plane_old->fb_id;
> - plane_commit_atomic(&plane, req, ATOMIC_RELAX_NONE);
> + plane_commit_atomic(&plane, req, 0, ATOMIC_RELAX_NONE);
>
> /* Pass a series of invalid object IDs for the CRTC ID. */
> plane.crtc_id = plane.obj;
> @@ -1063,7 +1063,7 @@ static void plane_invalid_params(struct kms_atomic_crtc_state *crtc,
> ATOMIC_RELAX_NONE, EINVAL);
>
> plane.crtc_id = plane_old->crtc_id;
> - plane_commit_atomic(&plane, req, ATOMIC_RELAX_NONE);
> + plane_commit_atomic(&plane, req, 0, ATOMIC_RELAX_NONE);
>
> /* Create a framebuffer too small for the plane configuration. */
> igt_require(format != 0);
> @@ -1085,7 +1085,7 @@ static void plane_invalid_params(struct kms_atomic_crtc_state *crtc,
> ATOMIC_RELAX_NONE, ENOSPC);
>
> /* Restore the primary plane and check the state matches the old. */
> - plane_commit_atomic(plane_old, req, ATOMIC_RELAX_NONE);
> + plane_commit_atomic(plane_old, req, 0, ATOMIC_RELAX_NONE);
>
> drmModeAtomicFree(req);
> }
> @@ -1280,6 +1280,112 @@ static void atomic_invalid_params(struct kms_atomic_crtc_state *crtc,
> do_ioctl_err(desc->fd, DRM_IOCTL_MODE_ATOMIC, &ioc, EFAULT);
> }
>
> +static void get_events(struct kms_atomic_crtc_state *crtc,
> + int *page_flips,
> + int *vblank_count,
> + int msec)
> +{
> + struct kms_atomic_desc *desc = crtc->state->desc;
> + struct timeval timeout = { .tv_sec = 0, .tv_usec = msec * 1000 };
> + fd_set fds;
> + char buffer[1024];
> + int idx, len, ret;
> +
> + FD_ZERO(&fds);
> + FD_SET(desc->fd, &fds);
> +
> + ret = select(1, &fds, NULL, NULL, &timeout);
> + if (ret < 1)
> + return;
> +
> + len = read(desc->fd, buffer, sizeof(buffer));
> + if (len == 0)
> + return;
> +
> + idx = 0;
> + while (idx < len) {
> + struct drm_event event;
> +
> + igt_assert_lte(sizeof(event), len - idx);
> +
> + memcpy(&event, &buffer[idx], sizeof(event));
> + switch (event.type) {
> + case DRM_EVENT_FLIP_COMPLETE:
> + (*page_flips)++;
> + break;
> + case DRM_EVENT_VBLANK:
> + (*vblank_count)++;
> + break;
> + default:
> + break;
> + }
> +
> + idx += event.length;
> + }
> +}
> +
> +static void plane_pageflip_events(struct kms_atomic_crtc_state *crtc,
> + struct kms_atomic_plane_state *plane_old)
> +{
> + struct drm_mode_modeinfo *mode = crtc->mode.data;
> + struct kms_atomic_plane_state plane = *plane_old;
> + uint32_t format = plane_get_igt_format(&plane);
> + drmModeAtomicReq *req = drmModeAtomicAlloc();
> + struct igt_fb fb[2];
> + int i, pageflip_count = 0, vblank_count = 0;
> + int flags = DRM_MODE_PAGE_FLIP_EVENT;
> +
> + igt_require(format != 0);
> +
> + for (i = 0; i < ARRAY_SIZE(fb); i++)
> + igt_create_pattern_fb(plane.state->desc->fd,
> + plane.crtc_w, plane.crtc_h,
> + format, I915_TILING_NONE, &fb[i]);
> +
> + plane.src_x = 0;
> + plane.src_y = 0;
> + plane.src_w = mode->hdisplay << 16;
> + plane.src_h = mode->vdisplay << 16;
> + plane.crtc_x = 0;
> + plane.crtc_y = 0;
> + plane.crtc_w = mode->hdisplay;
> + plane.crtc_h = mode->vdisplay;
> + plane.crtc_id = crtc->obj;
> + plane.fb_id = fb[0].fb_id;
> +
> + /* Flip the primary plane using the atomic API, and double-check
> + * state is what we think it should be. */
> + crtc_commit_atomic(crtc, &plane, req, ATOMIC_RELAX_NONE);
> +
> + get_events(crtc, &pageflip_count, &vblank_count, 0);
> + igt_assert_eq(1, pageflip_count);
> +
> + drmModeAtomicFree(req);
> + req = drmModeAtomicAlloc();
> +
> + /* Change the framebuffer on the plane, we should get one
> + * pageflip event. */
> + plane.fb_id = fb[1].fb_id;
> + plane_commit_atomic(&plane, req, flags, ATOMIC_RELAX_NONE);
> + get_events(crtc, &pageflip_count, &vblank_count, 20);
> + igt_assert_eq(2, pageflip_count);
> +
> + /* No change, page flip event count should remain the same. */
> + plane.fb_id = fb[1].fb_id;
> + plane_commit_atomic(&plane, req, flags, ATOMIC_RELAX_NONE);
> + get_events(crtc, &pageflip_count, &vblank_count, 20);
> + igt_assert_eq(2, pageflip_count);
> +
> + /* Change back the plane's framebuffer to its original one, we
> + * should get a page flip event. */
> + plane.fb_id = fb[0].fb_id;
> + plane_commit_atomic(&plane, req, flags, ATOMIC_RELAX_NONE);
> + get_events(crtc, &pageflip_count, &vblank_count, 20);
> + igt_assert_eq(3, pageflip_count);
> +
> + drmModeAtomicFree(req);
> +}
> +
> igt_main
> {
> struct kms_atomic_desc desc;
> @@ -1373,6 +1479,17 @@ igt_main
> atomic_state_free(scratch);
> }
>
> + igt_subtest("atomic_pageflip_events") {
> + struct kms_atomic_state *scratch = atomic_state_dup(current);
> + struct kms_atomic_crtc_state *crtc = find_crtc(scratch, true);
> + struct kms_atomic_plane_state *plane =
> + find_plane(scratch, PLANE_TYPE_PRIMARY, crtc);
> +
> + igt_require(plane);
> + plane_pageflip_events(crtc, plane);
> + atomic_state_free(scratch);
> + }
> +
> atomic_state_free(current);
>
> igt_fixture
> --
> 2.8.0.rc3.226.g39d4020
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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