* [PATCH] drm/mediatek: check plane visibility in atomic_update
@ 2020-06-22 5:32 Hsin-Yi Wang
2020-06-22 14:19 ` Chun-Kuang Hu
0 siblings, 1 reply; 2+ messages in thread
From: Hsin-Yi Wang @ 2020-06-22 5:32 UTC (permalink / raw)
To: linux-arm-kernel, Chun-Kuang Hu
Cc: Philipp Zabel, David Airlie, Daniel Vetter, Matthias Brugger,
dri-devel, linux-mediatek, linux-kernel, yongqiang.niu, tfiga
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(-)
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
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] drm/mediatek: check plane visibility in atomic_update
2020-06-22 5:32 [PATCH] drm/mediatek: check plane visibility in atomic_update Hsin-Yi Wang
@ 2020-06-22 14:19 ` Chun-Kuang Hu
0 siblings, 0 replies; 2+ messages in thread
From: Chun-Kuang Hu @ 2020-06-22 14:19 UTC (permalink / raw)
To: Hsin-Yi Wang
Cc: Linux ARM, Chun-Kuang Hu, Philipp Zabel, David Airlie,
Daniel Vetter, Matthias Brugger, DRI Development,
moderated list:ARM/Mediatek SoC support, linux-kernel,
Yongqiang Niu, Tomasz Figa
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
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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