| Message ID | 20200622053234.122120-1-hsinyi@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/mediatek: check plane visibility in atomic_update | expand |
Hi, Hsin-Yi: Hsin-Yi Wang <hsinyi@chromium.org> 於 2020年6月22日 週一 下午1:32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. Except the Fixes tag, Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org> > > Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org> > --- > drivers/gpu/drm/mediatek/mtk_drm_plane.c | 23 +++++++++++++---------- > 1 file changed, 13 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..74dc71c7f3b6 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 +188,9 @@ static void mtk_plane_atomic_update(struct drm_plane *plane, > if (!crtc || WARN_ON(!fb)) > return; > > + if (!plane->state->visible) > + return mtk_plane_atomic_disable(plane, old_state); > + > gem = fb->obj[0]; > mtk_gem = to_mtk_gem_obj(gem); > addr = mtk_gem->dma_addr; > @@ -200,16 +213,6 @@ 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 >
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c index c2bd683a87c8..74dc71c7f3b6 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 +188,9 @@ static void mtk_plane_atomic_update(struct drm_plane *plane, if (!crtc || WARN_ON(!fb)) return; + if (!plane->state->visible) + return mtk_plane_atomic_disable(plane, old_state); + gem = fb->obj[0]; mtk_gem = to_mtk_gem_obj(gem); addr = mtk_gem->dma_addr; @@ -200,16 +213,6 @@ 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,
Disable the plane if it's not visible. Otherwise mtk_ovl_layer_config() would proceed with invalid plane and we may see vblank timeout. Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org> --- drivers/gpu/drm/mediatek/mtk_drm_plane.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-)