diff mbox series

[v7,2/5] drm/i915/display/psr: Use plane damage clips to calculate damaged area

Message ID 20201216174900.185178-2-jose.souza@intel.com (mailing list archive)
State New, archived
Headers show
Series [v7,1/5] drm: Add function to convert rect in 16.16 fixed format to regular format | expand

Commit Message

Souza, Jose Dec. 16, 2020, 5:48 p.m. UTC
Now using plane damage clips property to calcualte the damaged area.
Selective fetch only supports one region to be fetched so software
needs to calculate a bounding box around all damage clips.

Now that we are not complete fetching each plane, there is another
loop needed as all the plane areas that intersect with the pipe
damaged area needs to be fetched from memory so the complete blending
of all planes can happen.

v2:
- do not shifthing new_plane_state->uapi.dst only src is in 16.16 format

v4:
- setting plane selective fetch area using the whole pipe damage area
- mark the whole plane area damaged if plane visibility or alpha
changed

v5:
- taking in consideration src.y1 in the damage coordinates
- adding to the pipe damaged area planes that were visible but are
invisible in the new state

v6:
- consider old state plane coordinates when visibility changes or it
moved to calculate damaged area
- remove from damaged area the portion not in src clip

v7:
- intersec every damage clip with src to minimize damaged area

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 101 ++++++++++++++++++++---
 1 file changed, 89 insertions(+), 12 deletions(-)

Comments

Gwan-gyeong Mun Dec. 17, 2020, 11:59 a.m. UTC | #1
On Wed, 2020-12-16 at 09:48 -0800, José Roberto de Souza wrote:
> Now using plane damage clips property to calcualte the damaged area.
> Selective fetch only supports one region to be fetched so software
> needs to calculate a bounding box around all damage clips.
> 
> Now that we are not complete fetching each plane, there is another
> loop needed as all the plane areas that intersect with the pipe
> damaged area needs to be fetched from memory so the complete blending
> of all planes can happen.
> 
> v2:
> - do not shifthing new_plane_state->uapi.dst only src is in 16.16
> format
> 
> v4:
> - setting plane selective fetch area using the whole pipe damage area
> - mark the whole plane area damaged if plane visibility or alpha
> changed
> 
> v5:
> - taking in consideration src.y1 in the damage coordinates
> - adding to the pipe damaged area planes that were visible but are
> invisible in the new state
> 
> v6:
> - consider old state plane coordinates when visibility changes or it
> moved to calculate damaged area
> - remove from damaged area the portion not in src clip
> 
> v7:
> - intersec every damage clip with src to minimize damaged area
> 
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
> Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_psr.c | 101 ++++++++++++++++++++-
> --
>  1 file changed, 89 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c
> b/drivers/gpu/drm/i915/display/intel_psr.c
> index d9a395c486d3..4bed18422c8a 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -1269,8 +1269,8 @@ int intel_psr2_sel_fetch_update(struct
> intel_atomic_state *state,
>  				struct intel_crtc *crtc)
>  {
>  	struct intel_crtc_state *crtc_state =
> intel_atomic_get_new_crtc_state(state, crtc);
> +	struct drm_rect pipe_clip = { .x1 = 0, .y1 = -1, .x2 = INT_MAX,
> .y2 = -1 };
>  	struct intel_plane_state *new_plane_state, *old_plane_state;
> -	struct drm_rect pipe_clip = { .y1 = -1 };
>  	struct intel_plane *plane;
>  	bool full_update = false;
>  	int i, ret;
> @@ -1282,9 +1282,17 @@ int intel_psr2_sel_fetch_update(struct
> intel_atomic_state *state,
>  	if (ret)
>  		return ret;
>  
> +	/*
> +	 * Calculate minimal selective fetch area of each plane and
> calculate
> +	 * the pipe damaged area.
> +	 * In the next loop the plane selective fetch area will
> actually be set
> +	 * using whole pipe damaged area.
> +	 */
>  	for_each_oldnew_intel_plane_in_state(state, plane,
> old_plane_state,
>  					     new_plane_state, i) {
> -		struct drm_rect *sel_fetch_area, temp;
> +		struct drm_rect src, damaged_area = { .y1 = -1 };
> +		struct drm_mode_rect *damaged_clips;
> +		u32 num_clips, j;
>  
>  		if (new_plane_state->uapi.crtc != crtc_state-
> >uapi.crtc)
>  			continue;
> @@ -1300,23 +1308,92 @@ int intel_psr2_sel_fetch_update(struct
> intel_atomic_state *state,
>  			break;
>  		}
>  
> -		if (!new_plane_state->uapi.visible)
> -			continue;
> +		drm_rect_fp_to_int(&src, &new_plane_state->uapi.src);
> +		damaged_clips =
> drm_plane_get_damage_clips(&new_plane_state->uapi);
> +		num_clips =
> drm_plane_get_damage_clips_count(&new_plane_state->uapi);
>  
>  		/*
> -		 * For now doing a selective fetch in the whole plane
> area,
> -		 * optimizations will come in the future.
> +		 * If visibility or plane moved, mark the whole plane
> area as
> +		 * damaged as it needs to be complete redraw in the new
> and old
> +		 * position.
>  		 */
> +		if (new_plane_state->uapi.visible != old_plane_state-
> >uapi.visible ||
> +		    !drm_rect_equals(&new_plane_state->uapi.dst,
> +				     &old_plane_state->uapi.dst)) {
> +			damaged_area.y1 = old_plane_state->uapi.src.y1
> >> 16;
> +			damaged_area.y1 = old_plane_state->uapi.src.y2
> >> 16;
> +			damaged_area.y1 += old_plane_state-
> >uapi.dst.y1;
> +			damaged_area.y2 += old_plane_state-
> >uapi.dst.y1;
> +			clip_area_update(&pipe_clip, &damaged_area);
> +
Hi, I commented issues of using src on 
https://patchwork.freedesktop.org/patch/408035/?series=84910&rev=1
please check it.
> +			num_clips = 0;
> +			damaged_area.y1 = src.y1;
> +			damaged_area.y2 = src.y2;
> +		} else if (new_plane_state->uapi.alpha !=
> old_plane_state->uapi.alpha) {
> +			num_clips = 0;
> +			damaged_area.y1 = src.y1;
> +			damaged_area.y2 = src.y2;
> +		} else if (!num_clips &&
> +			   new_plane_state->uapi.fb != old_plane_state-
> >uapi.fb) {
> +			/*
> +			 * If the plane don't have damage areas but the
> +			 * framebuffer changed, mark the whole plane
> area as
> +			 * damaged.
> +			 */
> +			damaged_area.y1 = src.y1;
> +			damaged_area.y2 = src.y2;
> +		}
> +
> +		for (j = 0; j < num_clips; j++) {
> +			struct drm_rect clip;
> +
> +			clip.x1 = damaged_clips[j].x1;
> +			clip.y1 = damaged_clips[j].y1;
> +			clip.x2 = damaged_clips[j].x2;
> +			clip.y2 = damaged_clips[j].y2;
> +			if (drm_rect_intersect(&clip, &src))
> +				clip_area_update(&damaged_area, &clip);
> +		}
> +
> +		if (damaged_area.y1 == -1)
> +			continue;
> +
> +		damaged_area.y1 += new_plane_state->uapi.dst.y1;
> +		damaged_area.y2 += new_plane_state->uapi.dst.y1;
> +		clip_area_update(&pipe_clip, &damaged_area);
> +	}
> +
> +	if (full_update)
> +		goto skip_sel_fetch_set_loop;
> +
> +	/*
> +	 * Now that we have the pipe damaged area check if it intersect
> with
> +	 * every plane, if it does set the plane selective fetch area.
> +	 */
> +	for_each_oldnew_intel_plane_in_state(state, plane,
> old_plane_state,
> +					     new_plane_state, i) {
> +		struct drm_rect *sel_fetch_area, inter, src;
> +
> +		if (new_plane_state->uapi.crtc != crtc_state->uapi.crtc 
> ||
> +		    !new_plane_state->uapi.visible)
> +			continue;
> +
> +		inter = pipe_clip;
> +		if (!drm_rect_intersect(&inter, &new_plane_state-
> >uapi.dst))
> +			continue;
> +
> +		drm_rect_fp_to_int(&src, &new_plane_state->uapi.src);
> +
>  		sel_fetch_area = &new_plane_state->psr2_sel_fetch_area;
> -		sel_fetch_area->y1 = new_plane_state->uapi.src.y1 >>
> 16;
> -		sel_fetch_area->y2 = new_plane_state->uapi.src.y2 >>
> 16;
> +		sel_fetch_area->y1 = inter.y1 - new_plane_state-
> >uapi.dst.y1;
> +		sel_fetch_area->y2 = inter.y2 - new_plane_state-
> >uapi.dst.y1;
> +		sel_fetch_area->x1 = src.x1;
> +		sel_fetch_area->x2 = src.x2;
>  
> -		temp = *sel_fetch_area;
> -		temp.y1 += new_plane_state->uapi.dst.y1;
> -		temp.y2 += new_plane_state->uapi.dst.y2;
> -		clip_area_update(&pipe_clip, &temp);
> +		drm_rect_intersect(sel_fetch_area, &src);
>  	}
>  
> +skip_sel_fetch_set_loop:
>  	psr2_man_trk_ctl_calc(crtc_state, &pipe_clip, full_update);
>  	return 0;
>  }
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index d9a395c486d3..4bed18422c8a 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1269,8 +1269,8 @@  int intel_psr2_sel_fetch_update(struct intel_atomic_state *state,
 				struct intel_crtc *crtc)
 {
 	struct intel_crtc_state *crtc_state = intel_atomic_get_new_crtc_state(state, crtc);
+	struct drm_rect pipe_clip = { .x1 = 0, .y1 = -1, .x2 = INT_MAX, .y2 = -1 };
 	struct intel_plane_state *new_plane_state, *old_plane_state;
-	struct drm_rect pipe_clip = { .y1 = -1 };
 	struct intel_plane *plane;
 	bool full_update = false;
 	int i, ret;
@@ -1282,9 +1282,17 @@  int intel_psr2_sel_fetch_update(struct intel_atomic_state *state,
 	if (ret)
 		return ret;
 
+	/*
+	 * Calculate minimal selective fetch area of each plane and calculate
+	 * the pipe damaged area.
+	 * In the next loop the plane selective fetch area will actually be set
+	 * using whole pipe damaged area.
+	 */
 	for_each_oldnew_intel_plane_in_state(state, plane, old_plane_state,
 					     new_plane_state, i) {
-		struct drm_rect *sel_fetch_area, temp;
+		struct drm_rect src, damaged_area = { .y1 = -1 };
+		struct drm_mode_rect *damaged_clips;
+		u32 num_clips, j;
 
 		if (new_plane_state->uapi.crtc != crtc_state->uapi.crtc)
 			continue;
@@ -1300,23 +1308,92 @@  int intel_psr2_sel_fetch_update(struct intel_atomic_state *state,
 			break;
 		}
 
-		if (!new_plane_state->uapi.visible)
-			continue;
+		drm_rect_fp_to_int(&src, &new_plane_state->uapi.src);
+		damaged_clips = drm_plane_get_damage_clips(&new_plane_state->uapi);
+		num_clips = drm_plane_get_damage_clips_count(&new_plane_state->uapi);
 
 		/*
-		 * For now doing a selective fetch in the whole plane area,
-		 * optimizations will come in the future.
+		 * If visibility or plane moved, mark the whole plane area as
+		 * damaged as it needs to be complete redraw in the new and old
+		 * position.
 		 */
+		if (new_plane_state->uapi.visible != old_plane_state->uapi.visible ||
+		    !drm_rect_equals(&new_plane_state->uapi.dst,
+				     &old_plane_state->uapi.dst)) {
+			damaged_area.y1 = old_plane_state->uapi.src.y1 >> 16;
+			damaged_area.y1 = old_plane_state->uapi.src.y2 >> 16;
+			damaged_area.y1 += old_plane_state->uapi.dst.y1;
+			damaged_area.y2 += old_plane_state->uapi.dst.y1;
+			clip_area_update(&pipe_clip, &damaged_area);
+
+			num_clips = 0;
+			damaged_area.y1 = src.y1;
+			damaged_area.y2 = src.y2;
+		} else if (new_plane_state->uapi.alpha != old_plane_state->uapi.alpha) {
+			num_clips = 0;
+			damaged_area.y1 = src.y1;
+			damaged_area.y2 = src.y2;
+		} else if (!num_clips &&
+			   new_plane_state->uapi.fb != old_plane_state->uapi.fb) {
+			/*
+			 * If the plane don't have damage areas but the
+			 * framebuffer changed, mark the whole plane area as
+			 * damaged.
+			 */
+			damaged_area.y1 = src.y1;
+			damaged_area.y2 = src.y2;
+		}
+
+		for (j = 0; j < num_clips; j++) {
+			struct drm_rect clip;
+
+			clip.x1 = damaged_clips[j].x1;
+			clip.y1 = damaged_clips[j].y1;
+			clip.x2 = damaged_clips[j].x2;
+			clip.y2 = damaged_clips[j].y2;
+			if (drm_rect_intersect(&clip, &src))
+				clip_area_update(&damaged_area, &clip);
+		}
+
+		if (damaged_area.y1 == -1)
+			continue;
+
+		damaged_area.y1 += new_plane_state->uapi.dst.y1;
+		damaged_area.y2 += new_plane_state->uapi.dst.y1;
+		clip_area_update(&pipe_clip, &damaged_area);
+	}
+
+	if (full_update)
+		goto skip_sel_fetch_set_loop;
+
+	/*
+	 * Now that we have the pipe damaged area check if it intersect with
+	 * every plane, if it does set the plane selective fetch area.
+	 */
+	for_each_oldnew_intel_plane_in_state(state, plane, old_plane_state,
+					     new_plane_state, i) {
+		struct drm_rect *sel_fetch_area, inter, src;
+
+		if (new_plane_state->uapi.crtc != crtc_state->uapi.crtc ||
+		    !new_plane_state->uapi.visible)
+			continue;
+
+		inter = pipe_clip;
+		if (!drm_rect_intersect(&inter, &new_plane_state->uapi.dst))
+			continue;
+
+		drm_rect_fp_to_int(&src, &new_plane_state->uapi.src);
+
 		sel_fetch_area = &new_plane_state->psr2_sel_fetch_area;
-		sel_fetch_area->y1 = new_plane_state->uapi.src.y1 >> 16;
-		sel_fetch_area->y2 = new_plane_state->uapi.src.y2 >> 16;
+		sel_fetch_area->y1 = inter.y1 - new_plane_state->uapi.dst.y1;
+		sel_fetch_area->y2 = inter.y2 - new_plane_state->uapi.dst.y1;
+		sel_fetch_area->x1 = src.x1;
+		sel_fetch_area->x2 = src.x2;
 
-		temp = *sel_fetch_area;
-		temp.y1 += new_plane_state->uapi.dst.y1;
-		temp.y2 += new_plane_state->uapi.dst.y2;
-		clip_area_update(&pipe_clip, &temp);
+		drm_rect_intersect(sel_fetch_area, &src);
 	}
 
+skip_sel_fetch_set_loop:
 	psr2_man_trk_ctl_calc(crtc_state, &pipe_clip, full_update);
 	return 0;
 }