Re: [PATCH v3 09/11] drm/i915: create a prepare phase for sprite plane updates

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On Wed, Sep 24, 2014 at 02:20:30PM -0300, Gustavo Padovan wrote:
> From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
> 
> take out pin_fb code so the commit phase can't fail anymore.

Yeah making commit() void is a good step. For patches 8 and 9:
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

> 
> Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/intel_sprite.c | 63 +++++++++++++++++++++++--------------
>  1 file changed, 40 insertions(+), 23 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> index 750b634..8e5445b 100644
> --- a/drivers/gpu/drm/i915/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> @@ -1189,34 +1189,18 @@ intel_check_sprite_plane(struct drm_plane *plane,
>  }
>  
>  static int
> -intel_commit_sprite_plane(struct drm_plane *plane,
> -			  struct intel_plane_state *state)
> +intel_prepare_sprite_plane(struct drm_plane *plane,
> +			   struct intel_plane_state *state)
>  {
>  	struct drm_device *dev = plane->dev;
>  	struct drm_crtc *crtc = state->crtc;
>  	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> -	struct intel_plane *intel_plane = to_intel_plane(plane);
>  	enum pipe pipe = intel_crtc->pipe;
>  	struct drm_framebuffer *fb = state->fb;
> -	struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
> -	struct drm_i915_gem_object *obj = intel_fb->obj;
> -	struct drm_i915_gem_object *old_obj = intel_plane->obj;
> -	int crtc_x, crtc_y;
> -	unsigned int crtc_w, crtc_h;
> -	uint32_t src_x, src_y, src_w, src_h;
> -	struct drm_rect *dst = &state->dst;
> -	const struct drm_rect *clip = &state->clip;
> -	bool primary_enabled;
> +	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
> +	struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->fb);
>  	int ret;
>  
> -	/*
> -	 * If the sprite is completely covering the primary plane,
> -	 * we can disable the primary and save power.
> -	 */
> -	primary_enabled = !drm_rect_equals(dst, clip) || colorkey_enabled(intel_plane);
> -	WARN_ON(!primary_enabled && !state->visible && intel_crtc->active);
> -
> -
>  	if (old_obj != obj) {
>  		mutex_lock(&dev->struct_mutex);
>  
> @@ -1235,6 +1219,36 @@ intel_commit_sprite_plane(struct drm_plane *plane,
>  			return ret;
>  	}
>  
> +	return 0;
> +}
> +
> +static void
> +intel_commit_sprite_plane(struct drm_plane *plane,
> +			  struct intel_plane_state *state)
> +{
> +	struct drm_device *dev = plane->dev;
> +	struct drm_crtc *crtc = state->crtc;
> +	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> +	struct intel_plane *intel_plane = to_intel_plane(plane);
> +	enum pipe pipe = intel_crtc->pipe;
> +	struct drm_framebuffer *fb = state->fb;
> +	struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
> +	struct drm_i915_gem_object *obj = intel_fb->obj;
> +	struct drm_i915_gem_object *old_obj = intel_plane->obj;
> +	int crtc_x, crtc_y;
> +	unsigned int crtc_w, crtc_h;
> +	uint32_t src_x, src_y, src_w, src_h;
> +	struct drm_rect *dst = &state->dst;
> +	const struct drm_rect *clip = &state->clip;
> +	bool primary_enabled;
> +
> +	/*
> +	 * If the sprite is completely covering the primary plane,
> +	 * we can disable the primary and save power.
> +	 */
> +	primary_enabled = !drm_rect_equals(dst, clip) || colorkey_enabled(intel_plane);
> +	WARN_ON(!primary_enabled && !state->visible && intel_crtc->active);
> +
>  	intel_plane->crtc_x = state->orig_dst.x1;
>  	intel_plane->crtc_y = state->orig_dst.y1;
>  	intel_plane->crtc_w = drm_rect_width(&state->orig_dst);
> @@ -1295,8 +1309,6 @@ intel_commit_sprite_plane(struct drm_plane *plane,
>  		intel_unpin_fb_obj(old_obj);
>  		mutex_unlock(&dev->struct_mutex);
>  	}
> -
> -	return 0;
>  }
>  
>  static int
> @@ -1336,7 +1348,12 @@ intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
>  	if (ret)
>  		return ret;
>  
> -	return intel_commit_sprite_plane(plane, &state);
> +	ret = intel_prepare_sprite_plane(plane, &state);
> +	if (ret)
> +		return ret;
> +
> +	intel_commit_sprite_plane(plane, &state);
> +	return 0;
>  }
>  
>  static int
> -- 
> 1.9.3
> 
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-- 
Ville Syrjälä
Intel OTC
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