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* [PATCH v4] drm/mediatek: Fix cursor plane didn't update
@ 2021-07-22  1:47 jason-jh.lin
  2021-07-22 22:20 ` Chun-Kuang Hu
  0 siblings, 1 reply; 2+ messages in thread
From: jason-jh.lin @ 2021-07-22  1:47 UTC (permalink / raw)
  To: Chun-Kuang Hu, Matthias Brugger, Maxime Ripard
  Cc: jason-jh.lin, David Airlie, Thomas Zimmermann, singo.chang,
	linux-kernel, dri-devel, David-YH.Chiu, nancy.lin,
	linux-mediatek, linux-arm-kernel, hsinyi, enric.balletbo,
	seanpaul

The cursor plane should use the current plane state in atomic_async_update
because it would not be the new plane state in the global atomic state
since _swap_state happened when those hook are run.

Fix cursor plane issue by below modification:
1. Remove plane_helper_funcs->atomic_update(plane, state) in
   mtk_drm_crtc_async_update.
2. Add mtk_drm_update_new_state in to mtk_plane_atomic_async_update to
   update the cursor plane by current plane state hook and update
   others plane by the new_state.

Fixes: 37418bf14c13 ("drm: Use state helper instead of the plane state pointer")
Signed-off-by: jason-jh.lin <jason-jh.lin@mediatek.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---
  Change in v4:
  - Fix compile warning:
    ../drivers/gpu/drm/mediatek/mtk_drm_crtc.c:578:39: warning: unused
    variable ‘plane_helper_funcs’ [-Wunused-variable
---
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c  |  3 --
 drivers/gpu/drm/mediatek/mtk_drm_plane.c | 60 ++++++++++++++----------
 2 files changed, 34 insertions(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 40df2c823187..515315505e3b 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -532,13 +532,10 @@ void mtk_drm_crtc_async_update(struct drm_crtc *crtc, struct drm_plane *plane,
 			       struct drm_atomic_state *state)
 {
 	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
-	const struct drm_plane_helper_funcs *plane_helper_funcs =
-			plane->helper_private;
 
 	if (!mtk_crtc->enabled)
 		return;
 
-	plane_helper_funcs->atomic_update(plane, state);
 	mtk_drm_crtc_update_config(mtk_crtc, false);
 }
 
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index b5582dcf564c..e6dcb34d3052 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -110,6 +110,35 @@ static int mtk_plane_atomic_async_check(struct drm_plane *plane,
 						   true, true);
 }
 
+static void mtk_plane_update_new_state(struct drm_plane_state *new_state,
+				       struct mtk_plane_state *mtk_plane_state)
+{
+	struct drm_framebuffer *fb = new_state->fb;
+	struct drm_gem_object *gem;
+	struct mtk_drm_gem_obj *mtk_gem;
+	unsigned int pitch, format;
+	dma_addr_t addr;
+
+	gem = fb->obj[0];
+	mtk_gem = to_mtk_gem_obj(gem);
+	addr = mtk_gem->dma_addr;
+	pitch = fb->pitches[0];
+	format = fb->format->format;
+
+	addr += (new_state->src.x1 >> 16) * fb->format->cpp[0];
+	addr += (new_state->src.y1 >> 16) * pitch;
+
+	mtk_plane_state->pending.enable = true;
+	mtk_plane_state->pending.pitch = pitch;
+	mtk_plane_state->pending.format = format;
+	mtk_plane_state->pending.addr = addr;
+	mtk_plane_state->pending.x = new_state->dst.x1;
+	mtk_plane_state->pending.y = new_state->dst.y1;
+	mtk_plane_state->pending.width = drm_rect_width(&new_state->dst);
+	mtk_plane_state->pending.height = drm_rect_height(&new_state->dst);
+	mtk_plane_state->pending.rotation = new_state->rotation;
+}
+
 static void mtk_plane_atomic_async_update(struct drm_plane *plane,
 					  struct drm_atomic_state *state)
 {
@@ -126,8 +155,10 @@ static void mtk_plane_atomic_async_update(struct drm_plane *plane,
 	plane->state->src_h = new_state->src_h;
 	plane->state->src_w = new_state->src_w;
 	swap(plane->state->fb, new_state->fb);
-	new_plane_state->pending.async_dirty = true;
 
+	mtk_plane_update_new_state(new_state, new_plane_state);
+	wmb(); /* Make sure the above parameters are set before update */
+	new_plane_state->pending.async_dirty = true;
 	mtk_drm_crtc_async_update(new_state->crtc, plane, state);
 }
 
@@ -189,14 +220,8 @@ static void mtk_plane_atomic_update(struct drm_plane *plane,
 	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
 									   plane);
 	struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
-	struct drm_crtc *crtc = new_state->crtc;
-	struct drm_framebuffer *fb = new_state->fb;
-	struct drm_gem_object *gem;
-	struct mtk_drm_gem_obj *mtk_gem;
-	unsigned int pitch, format;
-	dma_addr_t addr;
 
-	if (!crtc || WARN_ON(!fb))
+	if (!new_state->crtc || WARN_ON(!new_state->fb))
 		return;
 
 	if (!new_state->visible) {
@@ -204,24 +229,7 @@ static void mtk_plane_atomic_update(struct drm_plane *plane,
 		return;
 	}
 
-	gem = fb->obj[0];
-	mtk_gem = to_mtk_gem_obj(gem);
-	addr = mtk_gem->dma_addr;
-	pitch = fb->pitches[0];
-	format = fb->format->format;
-
-	addr += (new_state->src.x1 >> 16) * fb->format->cpp[0];
-	addr += (new_state->src.y1 >> 16) * pitch;
-
-	mtk_plane_state->pending.enable = true;
-	mtk_plane_state->pending.pitch = pitch;
-	mtk_plane_state->pending.format = format;
-	mtk_plane_state->pending.addr = addr;
-	mtk_plane_state->pending.x = new_state->dst.x1;
-	mtk_plane_state->pending.y = new_state->dst.y1;
-	mtk_plane_state->pending.width = drm_rect_width(&new_state->dst);
-	mtk_plane_state->pending.height = drm_rect_height(&new_state->dst);
-	mtk_plane_state->pending.rotation = new_state->rotation;
+	mtk_plane_update_new_state(new_state, mtk_plane_state);
 	wmb(); /* Make sure the above parameters are set before update */
 	mtk_plane_state->pending.dirty = true;
 }
-- 
2.18.0


^ permalink raw reply related	[flat|nested] 2+ messages in thread
* Re: [PATCH v4] drm/mediatek: Fix cursor plane didn't update
  2021-07-22  1:47 [PATCH v4] drm/mediatek: Fix cursor plane didn't update jason-jh.lin
@ 2021-07-22 22:20 ` Chun-Kuang Hu
  0 siblings, 0 replies; 2+ messages in thread
From: Chun-Kuang Hu @ 2021-07-22 22:20 UTC (permalink / raw)
  To: jason-jh.lin
  Cc: Linux ARM, Chun-Kuang Hu, David Airlie, Thomas Zimmermann,
	singo.chang, linux-kernel, DRI Development,
	Enric Balletbo i Serra, Nancy Lin,
	moderated list:ARM/Mediatek SoC support, Maxime Ripard,
	Hsin-Yi Wang, Matthias Brugger, seanpaul, David-YH.Chiu

Hi, Jason:

jason-jh.lin <jason-jh.lin@mediatek.com> 於 2021年7月22日 週四 上午9:47寫道：
>
> The cursor plane should use the current plane state in atomic_async_update
> because it would not be the new plane state in the global atomic state
> since _swap_state happened when those hook are run.
>
> Fix cursor plane issue by below modification:
> 1. Remove plane_helper_funcs->atomic_update(plane, state) in
>    mtk_drm_crtc_async_update.
> 2. Add mtk_drm_update_new_state in to mtk_plane_atomic_async_update to
>    update the cursor plane by current plane state hook and update
>    others plane by the new_state.

Applied to mediatek-drm-fixes [1], thanks.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/log/?h=mediatek-drm-fixes

Regards,
Chun-Kuang.

>
> Fixes: 37418bf14c13 ("drm: Use state helper instead of the plane state pointer")
> Signed-off-by: jason-jh.lin <jason-jh.lin@mediatek.com>
> Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
> ---
>   Change in v4:
>   - Fix compile warning:
>     ../drivers/gpu/drm/mediatek/mtk_drm_crtc.c:578:39: warning: unused
>     variable ‘plane_helper_funcs’ [-Wunused-variable
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_crtc.c  |  3 --
>  drivers/gpu/drm/mediatek/mtk_drm_plane.c | 60 ++++++++++++++----------
>  2 files changed, 34 insertions(+), 29 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> index 40df2c823187..515315505e3b 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> @@ -532,13 +532,10 @@ void mtk_drm_crtc_async_update(struct drm_crtc *crtc, struct drm_plane *plane,
>                                struct drm_atomic_state *state)
>  {
>         struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
> -       const struct drm_plane_helper_funcs *plane_helper_funcs =
> -                       plane->helper_private;
>
>         if (!mtk_crtc->enabled)
>                 return;
>
> -       plane_helper_funcs->atomic_update(plane, state);
>         mtk_drm_crtc_update_config(mtk_crtc, false);
>  }
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> index b5582dcf564c..e6dcb34d3052 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> @@ -110,6 +110,35 @@ static int mtk_plane_atomic_async_check(struct drm_plane *plane,
>                                                    true, true);
>  }
>
> +static void mtk_plane_update_new_state(struct drm_plane_state *new_state,
> +                                      struct mtk_plane_state *mtk_plane_state)
> +{
> +       struct drm_framebuffer *fb = new_state->fb;
> +       struct drm_gem_object *gem;
> +       struct mtk_drm_gem_obj *mtk_gem;
> +       unsigned int pitch, format;
> +       dma_addr_t addr;
> +
> +       gem = fb->obj[0];
> +       mtk_gem = to_mtk_gem_obj(gem);
> +       addr = mtk_gem->dma_addr;
> +       pitch = fb->pitches[0];
> +       format = fb->format->format;
> +
> +       addr += (new_state->src.x1 >> 16) * fb->format->cpp[0];
> +       addr += (new_state->src.y1 >> 16) * pitch;
> +
> +       mtk_plane_state->pending.enable = true;
> +       mtk_plane_state->pending.pitch = pitch;
> +       mtk_plane_state->pending.format = format;
> +       mtk_plane_state->pending.addr = addr;
> +       mtk_plane_state->pending.x = new_state->dst.x1;
> +       mtk_plane_state->pending.y = new_state->dst.y1;
> +       mtk_plane_state->pending.width = drm_rect_width(&new_state->dst);
> +       mtk_plane_state->pending.height = drm_rect_height(&new_state->dst);
> +       mtk_plane_state->pending.rotation = new_state->rotation;
> +}
> +
>  static void mtk_plane_atomic_async_update(struct drm_plane *plane,
>                                           struct drm_atomic_state *state)
>  {
> @@ -126,8 +155,10 @@ static void mtk_plane_atomic_async_update(struct drm_plane *plane,
>         plane->state->src_h = new_state->src_h;
>         plane->state->src_w = new_state->src_w;
>         swap(plane->state->fb, new_state->fb);
> -       new_plane_state->pending.async_dirty = true;
>
> +       mtk_plane_update_new_state(new_state, new_plane_state);
> +       wmb(); /* Make sure the above parameters are set before update */
> +       new_plane_state->pending.async_dirty = true;
>         mtk_drm_crtc_async_update(new_state->crtc, plane, state);
>  }
>
> @@ -189,14 +220,8 @@ static void mtk_plane_atomic_update(struct drm_plane *plane,
>         struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
>                                                                            plane);
>         struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
> -       struct drm_crtc *crtc = new_state->crtc;
> -       struct drm_framebuffer *fb = new_state->fb;
> -       struct drm_gem_object *gem;
> -       struct mtk_drm_gem_obj *mtk_gem;
> -       unsigned int pitch, format;
> -       dma_addr_t addr;
>
> -       if (!crtc || WARN_ON(!fb))
> +       if (!new_state->crtc || WARN_ON(!new_state->fb))
>                 return;
>
>         if (!new_state->visible) {
> @@ -204,24 +229,7 @@ static void mtk_plane_atomic_update(struct drm_plane *plane,
>                 return;
>         }
>
> -       gem = fb->obj[0];
> -       mtk_gem = to_mtk_gem_obj(gem);
> -       addr = mtk_gem->dma_addr;
> -       pitch = fb->pitches[0];
> -       format = fb->format->format;
> -
> -       addr += (new_state->src.x1 >> 16) * fb->format->cpp[0];
> -       addr += (new_state->src.y1 >> 16) * pitch;
> -
> -       mtk_plane_state->pending.enable = true;
> -       mtk_plane_state->pending.pitch = pitch;
> -       mtk_plane_state->pending.format = format;
> -       mtk_plane_state->pending.addr = addr;
> -       mtk_plane_state->pending.x = new_state->dst.x1;
> -       mtk_plane_state->pending.y = new_state->dst.y1;
> -       mtk_plane_state->pending.width = drm_rect_width(&new_state->dst);
> -       mtk_plane_state->pending.height = drm_rect_height(&new_state->dst);
> -       mtk_plane_state->pending.rotation = new_state->rotation;
> +       mtk_plane_update_new_state(new_state, mtk_plane_state);
>         wmb(); /* Make sure the above parameters are set before update */
>         mtk_plane_state->pending.dirty = true;
>  }
> --
> 2.18.0
>

^ permalink raw reply	[flat|nested] 2+ messages in thread
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