[PATCH v3 01/11] drm/atomic: Pass the full state to planes async atomic check and update

Thomas Zimmermann tzimmermann at suse.de
Wed Feb 24 11:33:45 UTC 2021


Hi Maxime,

for the whole series:

Acked-by: Thomas Zimmermann <tzimmermann at suse.de>

Am 19.02.21 um 13:00 schrieb Maxime Ripard:
> The current atomic helpers have either their object state being passed as
> an argument or the full atomic state.
> 
> The former is the pattern that was done at first, before switching to the
> latter for new hooks or when it was needed.
> 
> Let's start convert all the remaining helpers to provide a consistent
> interface, starting with the planes atomic_async_check and
> atomic_async_update.
> 
> The conversion was done using the coccinelle script below, built tested on
> all the drivers.
> 
> @@
> identifier plane, plane_state;
> symbol state;
> @@
> 
>   struct drm_plane_helper_funcs {
>   	...
> 	int (*atomic_async_check)(struct drm_plane *plane,
> -				  struct drm_plane_state *plane_state);
> +				  struct drm_atomic_state *state);
> 	...
>   }
> 
> @@
> identifier plane, plane_state;
> symbol state;
> @@
>   struct drm_plane_helper_funcs {
>   	...
> 	void (*atomic_async_update)(struct drm_plane *plane,
> -				    struct drm_plane_state *plane_state);
> +				    struct drm_atomic_state *state);
> 	...
>   }
> 
> @ plane_atomic_func @
> identifier helpers;
> identifier func;
> @@
> 
> (
>   static const struct drm_plane_helper_funcs helpers = {
> 	...,
>   	.atomic_async_check = func,
> 	...,
>   };
> |
>   static const struct drm_plane_helper_funcs helpers = {
>   	...,
>   	.atomic_async_update = func,
>   	...,
>   };
> )
> 
> @@
> struct drm_plane_helper_funcs *FUNCS;
> identifier f;
> identifier dev;
> identifier plane, plane_state, state;
> @@
> 
>   f(struct drm_device *dev, struct drm_atomic_state *state)
>   {
>   	<+...
> -	FUNCS->atomic_async_check(plane, plane_state)
> +	FUNCS->atomic_async_check(plane, state)
>   	...+>
>   }
> 
> @@
> struct drm_plane_helper_funcs *FUNCS;
> identifier f;
> identifier dev;
> identifier plane, plane_state, state;
> @@
> 
>   f(struct drm_device *dev, struct drm_atomic_state *state)
>   {
>   	<+...
> -	FUNCS->atomic_async_update(plane, plane_state)
> +	FUNCS->atomic_async_update(plane, state)
>   	...+>
>   }
> 
> @@
> identifier mtk_plane_atomic_async_update;
> identifier plane;
> symbol new_state, state;
> expression e;
> @@
> 
>    void mtk_plane_atomic_async_update(struct drm_plane *plane, struct drm_plane_state *new_state)
> {
>    ...
> - struct mtk_plane_state *state = e;
> + struct mtk_plane_state *new_plane_state = e;
>    <+...
> -       state
> +       new_plane_state
>    ...+>
>    }
> 
> @@
> identifier plane_atomic_func.func;
> identifier plane;
> symbol state;
> @@
> 
>   func(struct drm_plane *plane,
> -    struct drm_plane_state *state)
> +    struct drm_plane_state *new_plane_state)
>   {
> 	<...
> -	state
> +	new_plane_state
> 	...>
>   }
> 
> @ ignores_new_state @
> identifier plane_atomic_func.func;
> identifier plane, new_plane_state;
> @@
> 
>   func(struct drm_plane *plane, struct drm_plane_state *new_plane_state)
>   {
> 	... when != new_plane_state
>   }
> 
> @ adds_new_state depends on plane_atomic_func && !ignores_new_state @
> identifier plane_atomic_func.func;
> identifier plane, new_plane_state;
> @@
> 
>   func(struct drm_plane *plane, struct drm_plane_state *new_plane_state)
>   {
> +	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
>   	...
>   }
> 
> @ depends on plane_atomic_func @
> identifier plane_atomic_func.func;
> identifier plane, plane_state;
> @@
> 
>   func(struct drm_plane *plane,
> -     struct drm_plane_state *plane_state
> +     struct drm_atomic_state *state
>       )
>   { ... }
> 
> @ include depends on adds_new_state @
> @@
> 
>   #include <drm/drm_atomic.h>
> 
> @ no_include depends on !include && adds_new_state @
> @@
> 
> + #include <drm/drm_atomic.h>
>    #include <drm/...>
> 
> @@
> identifier plane_atomic_func.func;
> identifier plane, state;
> identifier plane_state;
> @@
> 
>   func(struct drm_plane *plane, struct drm_atomic_state *state) {
>          ...
>          struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane);
>          <+...
> -       plane_state->state
> +       state
>          ...+>
>   }
> 
> Acked-by: Thomas Zimmermann <tzimmermann at suse.de>
> Signed-off-by: Maxime Ripard <maxime at cerno.tech>
> 
> ---
> 
> Changes from v1:
>    - Updated the comment according to Thomas suggestions
> ---
>   .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  8 ++-
>   drivers/gpu/drm/drm_atomic_helper.c           |  4 +-
>   drivers/gpu/drm/mediatek/mtk_drm_plane.c      | 26 +++++----
>   drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c    | 33 ++++++-----
>   drivers/gpu/drm/rockchip/rockchip_drm_vop.c   | 16 ++++--
>   drivers/gpu/drm/vc4/vc4_plane.c               | 56 ++++++++++---------
>   include/drm/drm_modeset_helper_vtables.h      | 18 +++---
>   7 files changed, 89 insertions(+), 72 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 6ed96633425f..63f839679a0a 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -6468,7 +6468,7 @@ static int dm_plane_atomic_check(struct drm_plane *plane,
>   }
>   
>   static int dm_plane_atomic_async_check(struct drm_plane *plane,
> -				       struct drm_plane_state *new_plane_state)
> +				       struct drm_atomic_state *state)
>   {
>   	/* Only support async updates on cursor planes. */
>   	if (plane->type != DRM_PLANE_TYPE_CURSOR)
> @@ -6478,10 +6478,12 @@ static int dm_plane_atomic_async_check(struct drm_plane *plane,
>   }
>   
>   static void dm_plane_atomic_async_update(struct drm_plane *plane,
> -					 struct drm_plane_state *new_state)
> +					 struct drm_atomic_state *state)
>   {
> +	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
> +									   plane);
>   	struct drm_plane_state *old_state =
> -		drm_atomic_get_old_plane_state(new_state->state, plane);
> +		drm_atomic_get_old_plane_state(state, plane);
>   
>   	trace_amdgpu_dm_atomic_update_cursor(new_state);
>   
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index 9fa3f97223a1..bd0bb74437c7 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -1742,7 +1742,7 @@ int drm_atomic_helper_async_check(struct drm_device *dev,
>   		return -EBUSY;
>   	}
>   
> -	return funcs->atomic_async_check(plane, new_plane_state);
> +	return funcs->atomic_async_check(plane, state);
>   }
>   EXPORT_SYMBOL(drm_atomic_helper_async_check);
>   
> @@ -1772,7 +1772,7 @@ void drm_atomic_helper_async_commit(struct drm_device *dev,
>   		struct drm_framebuffer *old_fb = plane->state->fb;
>   
>   		funcs = plane->helper_private;
> -		funcs->atomic_async_update(plane, plane_state);
> +		funcs->atomic_async_update(plane, state);
>   
>   		/*
>   		 * ->atomic_async_update() is supposed to update the
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> index 92141a19681b..30ebcfd8832f 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> @@ -77,12 +77,14 @@ static void mtk_drm_plane_destroy_state(struct drm_plane *plane,
>   }
>   
>   static int mtk_plane_atomic_async_check(struct drm_plane *plane,
> -					struct drm_plane_state *state)
> +					struct drm_atomic_state *state)
>   {
> +	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
> +										 plane);
>   	struct drm_crtc_state *crtc_state;
>   	int ret;
>   
> -	if (plane != state->crtc->cursor)
> +	if (plane != new_plane_state->crtc->cursor)
>   		return -EINVAL;
>   
>   	if (!plane->state)
> @@ -91,16 +93,16 @@ static int mtk_plane_atomic_async_check(struct drm_plane *plane,
>   	if (!plane->state->fb)
>   		return -EINVAL;
>   
> -	ret = mtk_drm_crtc_plane_check(state->crtc, plane,
> -				       to_mtk_plane_state(state));
> +	ret = mtk_drm_crtc_plane_check(new_plane_state->crtc, plane,
> +				       to_mtk_plane_state(new_plane_state));
>   	if (ret)
>   		return ret;
>   
> -	if (state->state)
> -		crtc_state = drm_atomic_get_existing_crtc_state(state->state,
> -								state->crtc);
> +	if (state)
> +		crtc_state = drm_atomic_get_existing_crtc_state(state,
> +								new_plane_state->crtc);
>   	else /* Special case for asynchronous cursor updates. */
> -		crtc_state = state->crtc->state;
> +		crtc_state = new_plane_state->crtc->state;
>   
>   	return drm_atomic_helper_check_plane_state(plane->state, crtc_state,
>   						   DRM_PLANE_HELPER_NO_SCALING,
> @@ -109,9 +111,11 @@ static int mtk_plane_atomic_async_check(struct drm_plane *plane,
>   }
>   
>   static void mtk_plane_atomic_async_update(struct drm_plane *plane,
> -					  struct drm_plane_state *new_state)
> +					  struct drm_atomic_state *state)
>   {
> -	struct mtk_plane_state *state = to_mtk_plane_state(plane->state);
> +	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
> +									   plane);
> +	struct mtk_plane_state *new_plane_state = to_mtk_plane_state(plane->state);
>   
>   	plane->state->crtc_x = new_state->crtc_x;
>   	plane->state->crtc_y = new_state->crtc_y;
> @@ -122,7 +126,7 @@ 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);
> -	state->pending.async_dirty = true;
> +	new_plane_state->pending.async_dirty = true;
>   
>   	mtk_drm_crtc_async_update(new_state->crtc, plane, new_state);
>   }
> diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
> index 83423092de2f..05fa8255caeb 100644
> --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
> +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
> @@ -5,6 +5,7 @@
>    * Author: Rob Clark <robdclark at gmail.com>
>    */
>   
> +#include <drm/drm_atomic.h>
>   #include <drm/drm_damage_helper.h>
>   #include <drm/drm_fourcc.h>
>   #include <drm/drm_print.h>
> @@ -438,41 +439,43 @@ static void mdp5_plane_atomic_update(struct drm_plane *plane,
>   }
>   
>   static int mdp5_plane_atomic_async_check(struct drm_plane *plane,
> -					 struct drm_plane_state *state)
> +					 struct drm_atomic_state *state)
>   {
> -	struct mdp5_plane_state *mdp5_state = to_mdp5_plane_state(state);
> +	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
> +										 plane);
> +	struct mdp5_plane_state *mdp5_state = to_mdp5_plane_state(new_plane_state);
>   	struct drm_crtc_state *crtc_state;
>   	int min_scale, max_scale;
>   	int ret;
>   
> -	crtc_state = drm_atomic_get_existing_crtc_state(state->state,
> -							state->crtc);
> +	crtc_state = drm_atomic_get_existing_crtc_state(state,
> +							new_plane_state->crtc);
>   	if (WARN_ON(!crtc_state))
>   		return -EINVAL;
>   
>   	if (!crtc_state->active)
>   		return -EINVAL;
>   
> -	mdp5_state = to_mdp5_plane_state(state);
> +	mdp5_state = to_mdp5_plane_state(new_plane_state);
>   
>   	/* don't use fast path if we don't have a hwpipe allocated yet */
>   	if (!mdp5_state->hwpipe)
>   		return -EINVAL;
>   
>   	/* only allow changing of position(crtc x/y or src x/y) in fast path */
> -	if (plane->state->crtc != state->crtc ||
> -	    plane->state->src_w != state->src_w ||
> -	    plane->state->src_h != state->src_h ||
> -	    plane->state->crtc_w != state->crtc_w ||
> -	    plane->state->crtc_h != state->crtc_h ||
> +	if (plane->state->crtc != new_plane_state->crtc ||
> +	    plane->state->src_w != new_plane_state->src_w ||
> +	    plane->state->src_h != new_plane_state->src_h ||
> +	    plane->state->crtc_w != new_plane_state->crtc_w ||
> +	    plane->state->crtc_h != new_plane_state->crtc_h ||
>   	    !plane->state->fb ||
> -	    plane->state->fb != state->fb)
> +	    plane->state->fb != new_plane_state->fb)
>   		return -EINVAL;
>   
>   	min_scale = FRAC_16_16(1, 8);
>   	max_scale = FRAC_16_16(8, 1);
>   
> -	ret = drm_atomic_helper_check_plane_state(state, crtc_state,
> +	ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
>   						  min_scale, max_scale,
>   						  true, true);
>   	if (ret)
> @@ -485,15 +488,17 @@ static int mdp5_plane_atomic_async_check(struct drm_plane *plane,
>   	 * also assign/unassign the hwpipe(s) tied to the plane. We avoid
>   	 * taking the fast path for both these reasons.
>   	 */
> -	if (state->visible != plane->state->visible)
> +	if (new_plane_state->visible != plane->state->visible)
>   		return -EINVAL;
>   
>   	return 0;
>   }
>   
>   static void mdp5_plane_atomic_async_update(struct drm_plane *plane,
> -					   struct drm_plane_state *new_state)
> +					   struct drm_atomic_state *state)
>   {
> +	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
> +									   plane);
>   	struct drm_framebuffer *old_fb = plane->state->fb;
>   
>   	plane->state->src_x = new_state->src_x;
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index 8d15cabdcb02..fefeab73ca27 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -1021,8 +1021,10 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
>   }
>   
>   static int vop_plane_atomic_async_check(struct drm_plane *plane,
> -					struct drm_plane_state *state)
> +					struct drm_atomic_state *state)
>   {
> +	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
> +										 plane);
>   	struct vop_win *vop_win = to_vop_win(plane);
>   	const struct vop_win_data *win = vop_win->data;
>   	int min_scale = win->phy->scl ? FRAC_16_16(1, 8) :
> @@ -1031,7 +1033,7 @@ static int vop_plane_atomic_async_check(struct drm_plane *plane,
>   					DRM_PLANE_HELPER_NO_SCALING;
>   	struct drm_crtc_state *crtc_state;
>   
> -	if (plane != state->crtc->cursor)
> +	if (plane != new_plane_state->crtc->cursor)
>   		return -EINVAL;
>   
>   	if (!plane->state)
> @@ -1040,9 +1042,9 @@ static int vop_plane_atomic_async_check(struct drm_plane *plane,
>   	if (!plane->state->fb)
>   		return -EINVAL;
>   
> -	if (state->state)
> -		crtc_state = drm_atomic_get_existing_crtc_state(state->state,
> -								state->crtc);
> +	if (state)
> +		crtc_state = drm_atomic_get_existing_crtc_state(state,
> +								new_plane_state->crtc);
>   	else /* Special case for asynchronous cursor updates. */
>   		crtc_state = plane->crtc->state;
>   
> @@ -1052,8 +1054,10 @@ static int vop_plane_atomic_async_check(struct drm_plane *plane,
>   }
>   
>   static void vop_plane_atomic_async_update(struct drm_plane *plane,
> -					  struct drm_plane_state *new_state)
> +					  struct drm_atomic_state *state)
>   {
> +	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
> +									   plane);
>   	struct vop *vop = to_vop(plane->state->crtc);
>   	struct drm_framebuffer *old_fb = plane->state->fb;
>   
> diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
> index 6bd8260aa9f2..ff485e58d271 100644
> --- a/drivers/gpu/drm/vc4/vc4_plane.c
> +++ b/drivers/gpu/drm/vc4/vc4_plane.c
> @@ -1118,32 +1118,34 @@ void vc4_plane_async_set_fb(struct drm_plane *plane, struct drm_framebuffer *fb)
>   }
>   
>   static void vc4_plane_atomic_async_update(struct drm_plane *plane,
> -					  struct drm_plane_state *state)
> +					  struct drm_atomic_state *state)
>   {
> +	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
> +										 plane);
>   	struct vc4_plane_state *vc4_state, *new_vc4_state;
>   
> -	swap(plane->state->fb, state->fb);
> -	plane->state->crtc_x = state->crtc_x;
> -	plane->state->crtc_y = state->crtc_y;
> -	plane->state->crtc_w = state->crtc_w;
> -	plane->state->crtc_h = state->crtc_h;
> -	plane->state->src_x = state->src_x;
> -	plane->state->src_y = state->src_y;
> -	plane->state->src_w = state->src_w;
> -	plane->state->src_h = state->src_h;
> -	plane->state->src_h = state->src_h;
> -	plane->state->alpha = state->alpha;
> -	plane->state->pixel_blend_mode = state->pixel_blend_mode;
> -	plane->state->rotation = state->rotation;
> -	plane->state->zpos = state->zpos;
> -	plane->state->normalized_zpos = state->normalized_zpos;
> -	plane->state->color_encoding = state->color_encoding;
> -	plane->state->color_range = state->color_range;
> -	plane->state->src = state->src;
> -	plane->state->dst = state->dst;
> -	plane->state->visible = state->visible;
> +	swap(plane->state->fb, new_plane_state->fb);
> +	plane->state->crtc_x = new_plane_state->crtc_x;
> +	plane->state->crtc_y = new_plane_state->crtc_y;
> +	plane->state->crtc_w = new_plane_state->crtc_w;
> +	plane->state->crtc_h = new_plane_state->crtc_h;
> +	plane->state->src_x = new_plane_state->src_x;
> +	plane->state->src_y = new_plane_state->src_y;
> +	plane->state->src_w = new_plane_state->src_w;
> +	plane->state->src_h = new_plane_state->src_h;
> +	plane->state->src_h = new_plane_state->src_h;
> +	plane->state->alpha = new_plane_state->alpha;
> +	plane->state->pixel_blend_mode = new_plane_state->pixel_blend_mode;
> +	plane->state->rotation = new_plane_state->rotation;
> +	plane->state->zpos = new_plane_state->zpos;
> +	plane->state->normalized_zpos = new_plane_state->normalized_zpos;
> +	plane->state->color_encoding = new_plane_state->color_encoding;
> +	plane->state->color_range = new_plane_state->color_range;
> +	plane->state->src = new_plane_state->src;
> +	plane->state->dst = new_plane_state->dst;
> +	plane->state->visible = new_plane_state->visible;
>   
> -	new_vc4_state = to_vc4_plane_state(state);
> +	new_vc4_state = to_vc4_plane_state(new_plane_state);
>   	vc4_state = to_vc4_plane_state(plane->state);
>   
>   	vc4_state->crtc_x = new_vc4_state->crtc_x;
> @@ -1187,23 +1189,25 @@ static void vc4_plane_atomic_async_update(struct drm_plane *plane,
>   }
>   
>   static int vc4_plane_atomic_async_check(struct drm_plane *plane,
> -					struct drm_plane_state *state)
> +					struct drm_atomic_state *state)
>   {
> +	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
> +										 plane);
>   	struct vc4_plane_state *old_vc4_state, *new_vc4_state;
>   	int ret;
>   	u32 i;
>   
> -	ret = vc4_plane_mode_set(plane, state);
> +	ret = vc4_plane_mode_set(plane, new_plane_state);
>   	if (ret)
>   		return ret;
>   
>   	old_vc4_state = to_vc4_plane_state(plane->state);
> -	new_vc4_state = to_vc4_plane_state(state);
> +	new_vc4_state = to_vc4_plane_state(new_plane_state);
>   	if (old_vc4_state->dlist_count != new_vc4_state->dlist_count ||
>   	    old_vc4_state->pos0_offset != new_vc4_state->pos0_offset ||
>   	    old_vc4_state->pos2_offset != new_vc4_state->pos2_offset ||
>   	    old_vc4_state->ptr0_offset != new_vc4_state->ptr0_offset ||
> -	    vc4_lbm_size(plane->state) != vc4_lbm_size(state))
> +	    vc4_lbm_size(plane->state) != vc4_lbm_size(new_plane_state))
>   		return -EINVAL;
>   
>   	/* Only pos0, pos2 and ptr0 DWORDS can be updated in an async update
> diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h
> index eb706342861d..2b4d085da450 100644
> --- a/include/drm/drm_modeset_helper_vtables.h
> +++ b/include/drm/drm_modeset_helper_vtables.h
> @@ -1292,9 +1292,9 @@ struct drm_plane_helper_funcs {
>   	/**
>   	 * @atomic_async_check:
>   	 *
> -	 * Drivers should set this function pointer to check if the plane state
> -	 * can be updated in a async fashion. Here async means "not vblank
> -	 * synchronized".
> +	 * Drivers should set this function pointer to check if the plane's
> +	 * atomic state can be updated in a async fashion. Here async means
> +	 * "not vblank synchronized".
>   	 *
>   	 * This hook is called by drm_atomic_async_check() to establish if a
>   	 * given update can be committed asynchronously, that is, if it can
> @@ -1306,7 +1306,7 @@ struct drm_plane_helper_funcs {
>   	 * can not be applied in asynchronous manner.
>   	 */
>   	int (*atomic_async_check)(struct drm_plane *plane,
> -				  struct drm_plane_state *state);
> +				  struct drm_atomic_state *state);
>   
>   	/**
>   	 * @atomic_async_update:
> @@ -1322,11 +1322,9 @@ struct drm_plane_helper_funcs {
>   	 * update won't happen if there is an outstanding commit modifying
>   	 * the same plane.
>   	 *
> -	 * Note that unlike &drm_plane_helper_funcs.atomic_update this hook
> -	 * takes the new &drm_plane_state as parameter. When doing async_update
> -	 * drivers shouldn't replace the &drm_plane_state but update the
> -	 * current one with the new plane configurations in the new
> -	 * plane_state.
> +	 * When doing async_update drivers shouldn't replace the
> +	 * &drm_plane_state but update the current one with the new plane
> +	 * configurations in the new plane_state.
>   	 *
>   	 * Drivers should also swap the framebuffers between current plane
>   	 * state (&drm_plane.state) and new_state.
> @@ -1345,7 +1343,7 @@ struct drm_plane_helper_funcs {
>   	 *    for deferring if needed, until a common solution is created.
>   	 */
>   	void (*atomic_async_update)(struct drm_plane *plane,
> -				    struct drm_plane_state *new_state);
> +				    struct drm_atomic_state *state);
>   };
>   
>   /**
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

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