Hi, Hsin-Yi: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx> 於 2020年6月22日 週一 下午11:57寫道： > > Disable the plane if it's not visible. Otherwise mtk_ovl_layer_config() > would proceed with invalid plane and we may see vblank timeout. > Applied to mediatek-drm-next [1], thanks. [1] https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/log/?h=mediatek-drm-next Regards, Chun-Kuang. > Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") > Signed-off-by: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx> > Reviewed-by: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx> > Reviewed-by: Tomasz Figa <tfiga@xxxxxxxxxxxx> > --- > v4: fix commit message > v3: Address comment > v2: Add fixes tag > --- > drivers/gpu/drm/mediatek/mtk_drm_plane.c | 25 ++++++++++++++---------- > 1 file changed, 15 insertions(+), 10 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c > index c2bd683a87c8..92141a19681b 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c > @@ -164,6 +164,16 @@ static int mtk_plane_atomic_check(struct drm_plane *plane, > true, true); > } > > +static void mtk_plane_atomic_disable(struct drm_plane *plane, > + struct drm_plane_state *old_state) > +{ > + struct mtk_plane_state *state = to_mtk_plane_state(plane->state); > + > + state->pending.enable = false; > + wmb(); /* Make sure the above parameter is set before update */ > + state->pending.dirty = true; > +} > + > static void mtk_plane_atomic_update(struct drm_plane *plane, > struct drm_plane_state *old_state) > { > @@ -178,6 +188,11 @@ static void mtk_plane_atomic_update(struct drm_plane *plane, > if (!crtc || WARN_ON(!fb)) > return; > > + if (!plane->state->visible) { > + mtk_plane_atomic_disable(plane, old_state); > + return; > + } > + > gem = fb->obj[0]; > mtk_gem = to_mtk_gem_obj(gem); > addr = mtk_gem->dma_addr; > @@ -200,16 +215,6 @@ static void mtk_plane_atomic_update(struct drm_plane *plane, > state->pending.dirty = true; > } > > -static void mtk_plane_atomic_disable(struct drm_plane *plane, > - struct drm_plane_state *old_state) > -{ > - struct mtk_plane_state *state = to_mtk_plane_state(plane->state); > - > - state->pending.enable = false; > - wmb(); /* Make sure the above parameter is set before update */ > - state->pending.dirty = true; > -} > - > static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = { > .prepare_fb = drm_gem_fb_prepare_fb, > .atomic_check = mtk_plane_atomic_check, > -- > 2.27.0.111.gc72c7da667-goog > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
