| Message ID | 1475556478-11331-1-git-send-email-megha.i.nelogal@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, Oct 04, 2016 at 10:17:58AM +0530, meghanelogal wrote: > Existing DDB algorithm divide the DDB wrt data rate, > hence the planes with the less height but same width > will be allocated less blocks and watermark are based > on width which requires more DDB. With this data the flip > may fail. > > In new DDB algorithm, the DDB is divided based on > watermark requirement. > > In this subtest, dividing the htotal/200 will allocate > ~2-4 blocks out of total(512/896), flip may fail with the > exisiting algorithm.But with the new algorithm it will pass. > > Signed-off-by: Megha Nelogal <megha.i.nelogal@intel.com> Please note that igt can be run on _any_ linux driver. If you are testing for such a specific case like this one here, you definitely need to have very specific platform checks in place, using igt_require. But tbh I'm not sure this is all that useful .... -Daniel > --- > tests/kms_atomic.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 77 insertions(+) > > diff --git a/tests/kms_atomic.c b/tests/kms_atomic.c > index f27ee46..ff25644 100644 > --- a/tests/kms_atomic.c > +++ b/tests/kms_atomic.c > @@ -1280,6 +1280,60 @@ static void atomic_invalid_params(struct kms_atomic_crtc_state *crtc, > do_ioctl_err(desc->fd, DRM_IOCTL_MODE_ATOMIC, &ioc, EFAULT); > } > > +static void validate_dbuf(struct kms_atomic_crtc_state *crtc, > + struct kms_atomic_plane_state **plane_array, > + int plane_count) > +{ > + int i; > + struct kms_atomic_desc *desc = crtc->state->desc; > + > + /* for active crtc do modeset on the native resolution */ > + drmModeAtomicReq *req = drmModeAtomicAlloc(); > + struct drm_mode_modeinfo *mode = crtc->mode.data; > + struct kms_atomic_plane_state plane; > + struct igt_fb fb; > + > + crtc_populate_req(crtc, req); > + > + /* Add plane data to the structure...*/ > + uint32_t crtc_x = 0; > + uint32_t crtc_y = 0; > + > + for (i = 0; i < plane_count; i++) { > + plane = *plane_array[i]; > + uint32_t format = plane_get_igt_format(&plane); > + > + igt_require(format != 0); > + plane.src_x = 0; > + plane.src_y = 0; > + plane.src_w = (mode->hdisplay / (1)) << 16; > + plane.crtc_x = crtc_x; > + plane.crtc_y = crtc_y; > + plane.crtc_w = (mode->hdisplay) / (1); > + plane.crtc_h = (mode->vdisplay) / (i + 1); > + > + plane.crtc_id = crtc->obj; > + > + if (i%2 == 0) { > + plane.src_h = (mode->vdisplay / (1)) << 16; > + plane.crtc_h = (mode->vdisplay) / (1); > + } > + > + if (i%2 == 1) { > + plane.src_h = ceil((mode->vdisplay / 200) << 16); > + plane.crtc_h = ceil((mode->vdisplay / 200)); > + } > + > + plane.fb_id = igt_create_fb(plane.state->desc->fd, > + plane.crtc_w, plane.crtc_h, > + format, I915_TILING_NONE, &fb); > + plane_populate_req(&plane, req); > + } > + do_atomic_commit(desc->fd, req, ATOMIC_RELAX_NONE); > + drmModeAtomicFree(req); > +} > + > + > igt_main > { > struct kms_atomic_desc desc; > @@ -1373,6 +1427,29 @@ igt_main > atomic_state_free(scratch); > } > > + igt_subtest("validate_dbuf") { > + 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; > + struct kms_atomic_connector_state *connector = > + find_connector(scratch, crtc); > + struct kms_atomic_plane_state **plane_array = NULL; > + /* Enabling Two planes */ > + plane_array = calloc(2, sizeof(struct kms_atomic_plane_state *)); > + int plane_count = 0; > + > + igt_require(crtc); > + plane = find_plane(scratch, PLANE_TYPE_PRIMARY, crtc); > + igt_require(plane); > + plane_array[plane_count] = plane; plane_count++; > + plane = find_plane(scratch, PLANE_TYPE_OVERLAY, crtc); > + igt_require(plane); > + plane_array[plane_count] = plane; plane_count++; > + igt_require(connector); > + validate_dbuf(crtc, plane_array, plane_count); > + atomic_state_free(scratch); > + } > + > atomic_state_free(current); > > igt_fixture > -- > 1.9.1 >
diff --git a/tests/kms_atomic.c b/tests/kms_atomic.c index f27ee46..ff25644 100644 --- a/tests/kms_atomic.c +++ b/tests/kms_atomic.c @@ -1280,6 +1280,60 @@ static void atomic_invalid_params(struct kms_atomic_crtc_state *crtc, do_ioctl_err(desc->fd, DRM_IOCTL_MODE_ATOMIC, &ioc, EFAULT); } +static void validate_dbuf(struct kms_atomic_crtc_state *crtc, + struct kms_atomic_plane_state **plane_array, + int plane_count) +{ + int i; + struct kms_atomic_desc *desc = crtc->state->desc; + + /* for active crtc do modeset on the native resolution */ + drmModeAtomicReq *req = drmModeAtomicAlloc(); + struct drm_mode_modeinfo *mode = crtc->mode.data; + struct kms_atomic_plane_state plane; + struct igt_fb fb; + + crtc_populate_req(crtc, req); + + /* Add plane data to the structure...*/ + uint32_t crtc_x = 0; + uint32_t crtc_y = 0; + + for (i = 0; i < plane_count; i++) { + plane = *plane_array[i]; + uint32_t format = plane_get_igt_format(&plane); + + igt_require(format != 0); + plane.src_x = 0; + plane.src_y = 0; + plane.src_w = (mode->hdisplay / (1)) << 16; + plane.crtc_x = crtc_x; + plane.crtc_y = crtc_y; + plane.crtc_w = (mode->hdisplay) / (1); + plane.crtc_h = (mode->vdisplay) / (i + 1); + + plane.crtc_id = crtc->obj; + + if (i%2 == 0) { + plane.src_h = (mode->vdisplay / (1)) << 16; + plane.crtc_h = (mode->vdisplay) / (1); + } + + if (i%2 == 1) { + plane.src_h = ceil((mode->vdisplay / 200) << 16); + plane.crtc_h = ceil((mode->vdisplay / 200)); + } + + plane.fb_id = igt_create_fb(plane.state->desc->fd, + plane.crtc_w, plane.crtc_h, + format, I915_TILING_NONE, &fb); + plane_populate_req(&plane, req); + } + do_atomic_commit(desc->fd, req, ATOMIC_RELAX_NONE); + drmModeAtomicFree(req); +} + + igt_main { struct kms_atomic_desc desc; @@ -1373,6 +1427,29 @@ igt_main atomic_state_free(scratch); } + igt_subtest("validate_dbuf") { + 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; + struct kms_atomic_connector_state *connector = + find_connector(scratch, crtc); + struct kms_atomic_plane_state **plane_array = NULL; + /* Enabling Two planes */ + plane_array = calloc(2, sizeof(struct kms_atomic_plane_state *)); + int plane_count = 0; + + igt_require(crtc); + plane = find_plane(scratch, PLANE_TYPE_PRIMARY, crtc); + igt_require(plane); + plane_array[plane_count] = plane; plane_count++; + plane = find_plane(scratch, PLANE_TYPE_OVERLAY, crtc); + igt_require(plane); + plane_array[plane_count] = plane; plane_count++; + igt_require(connector); + validate_dbuf(crtc, plane_array, plane_count); + atomic_state_free(scratch); + } + atomic_state_free(current); igt_fixture
Existing DDB algorithm divide the DDB wrt data rate, hence the planes with the less height but same width will be allocated less blocks and watermark are based on width which requires more DDB. With this data the flip may fail. In new DDB algorithm, the DDB is divided based on watermark requirement. In this subtest, dividing the htotal/200 will allocate ~2-4 blocks out of total(512/896), flip may fail with the exisiting algorithm.But with the new algorithm it will pass. Signed-off-by: Megha Nelogal <megha.i.nelogal@intel.com> --- tests/kms_atomic.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+)