Re: [PATCH 3/9] drm/i915: remove intel_pipe_set_base() (v4)

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Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@xxxxxxxxx>

On 11/24/2014 09:53 PM, Matt Roper wrote:
> From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
> 
> After some refactor intel_primary_plane_setplane() does the same
> as intel_pipe_set_base() so we can get rid of it and replace the calls
> with intel_primary_plane_setplane().
> 
> v2: take Ville's comments:
> 	- get the right arguments for update_plane()
> 	- use drm_crtc_get_hv_timing()
> 
> v3 (by Matt):
>   - Rebase to latest di-nightly codebase
>   - Use primary->funcs->update_plane() in __intel_set_mode()
>   - Use primary->funcs->disable_plane() in intel_crtc_disable()
> 
> v4 (by Matt):
>   - Drop redundant calls to intel_crtc_wait_for_pending_flips() before
>     calling update_plane() (Ville)
> 
> Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
> Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
> Acked-and-mourned-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
> ---
>   drivers/gpu/drm/i915/intel_display.c | 129 ++++++++---------------------------
>   1 file changed, 28 insertions(+), 101 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 81894be..17788f8 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -2890,71 +2890,6 @@ static void intel_update_pipe_size(struct intel_crtc *crtc)
>   	crtc->config.pipe_src_h = adjusted_mode->crtc_vdisplay;
>   }
>   
> -static int
> -intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
> -		    struct drm_framebuffer *fb)
> -{
> -	struct drm_device *dev = crtc->dev;
> -	struct drm_i915_private *dev_priv = dev->dev_private;
> -	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> -	enum pipe pipe = intel_crtc->pipe;
> -	struct drm_framebuffer *old_fb = crtc->primary->fb;
> -	struct drm_i915_gem_object *old_obj = intel_fb_obj(old_fb);
> -	int ret;
> -
> -	if (intel_crtc_has_pending_flip(crtc)) {
> -		DRM_ERROR("pipe is still busy with an old pageflip\n");
> -		return -EBUSY;
> -	}
> -
> -	/* no fb bound */
> -	if (!fb) {
> -		DRM_ERROR("No FB bound\n");
> -		return 0;
> -	}
> -
> -	if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) {
> -		DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
> -			  plane_name(intel_crtc->plane),
> -			  INTEL_INFO(dev)->num_pipes);
> -		return -EINVAL;
> -	}
> -
> -	mutex_lock(&dev->struct_mutex);
> -	ret = intel_pin_and_fence_fb_obj(crtc->primary, fb, NULL);
> -	if (ret == 0)
> -		i915_gem_track_fb(old_obj, intel_fb_obj(fb),
> -				  INTEL_FRONTBUFFER_PRIMARY(pipe));
> -	mutex_unlock(&dev->struct_mutex);
> -	if (ret != 0) {
> -		DRM_ERROR("pin & fence failed\n");
> -		return ret;
> -	}
> -
> -	dev_priv->display.update_primary_plane(crtc, fb, x, y);
> -
> -	if (intel_crtc->active)
> -		intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_PRIMARY(pipe));
> -
> -	crtc->primary->fb = fb;
> -	crtc->x = x;
> -	crtc->y = y;
> -
> -	if (old_fb) {
> -		if (intel_crtc->active && old_fb != fb)
> -			intel_wait_for_vblank(dev, intel_crtc->pipe);
> -		mutex_lock(&dev->struct_mutex);
> -		intel_unpin_fb_obj(old_obj);
> -		mutex_unlock(&dev->struct_mutex);
> -	}
> -
> -	mutex_lock(&dev->struct_mutex);
> -	intel_update_fbc(dev);
> -	mutex_unlock(&dev->struct_mutex);
> -
> -	return 0;
> -}
> -
>   static void intel_fdi_normal_train(struct drm_crtc *crtc)
>   {
>   	struct drm_device *dev = crtc->dev;
> @@ -5248,8 +5183,6 @@ static void intel_crtc_disable(struct drm_crtc *crtc)
>   	struct drm_device *dev = crtc->dev;
>   	struct drm_connector *connector;
>   	struct drm_i915_private *dev_priv = dev->dev_private;
> -	struct drm_i915_gem_object *old_obj = intel_fb_obj(crtc->primary->fb);
> -	enum pipe pipe = to_intel_crtc(crtc)->pipe;
>   
>   	/* crtc should still be enabled when we disable it. */
>   	WARN_ON(!crtc->enabled);
> @@ -5257,14 +5190,7 @@ static void intel_crtc_disable(struct drm_crtc *crtc)
>   	dev_priv->display.crtc_disable(crtc);
>   	dev_priv->display.off(crtc);
>   
> -	if (crtc->primary->fb) {
> -		mutex_lock(&dev->struct_mutex);
> -		intel_unpin_fb_obj(old_obj);
> -		i915_gem_track_fb(old_obj, NULL,
> -				  INTEL_FRONTBUFFER_PRIMARY(pipe));
> -		mutex_unlock(&dev->struct_mutex);
> -		crtc->primary->fb = NULL;
> -	}
> +	crtc->primary->funcs->disable_plane(crtc->primary);
>   
>   	/* Update computed state. */
>   	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
> @@ -9621,6 +9547,8 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
>   	struct drm_framebuffer *old_fb = crtc->primary->fb;
>   	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
>   	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> +	struct drm_plane *primary = crtc->primary;
> +	struct intel_plane *intel_plane = to_intel_plane(primary);
>   	enum pipe pipe = intel_crtc->pipe;
>   	struct intel_unpin_work *work;
>   	struct intel_engine_cs *ring;
> @@ -9779,8 +9707,15 @@ free_work:
>   
>   	if (ret == -EIO) {
>   out_hang:
> -		intel_crtc_wait_for_pending_flips(crtc);
> -		ret = intel_pipe_set_base(crtc, crtc->x, crtc->y, fb);
> +		ret = primary->funcs->update_plane(primary, crtc, fb,
> +						   intel_plane->crtc_x,
> +						   intel_plane->crtc_y,
> +						   intel_plane->crtc_h,
> +						   intel_plane->crtc_w,
> +						   intel_plane->src_x,
> +						   intel_plane->src_y,
> +						   intel_plane->src_h,
> +						   intel_plane->src_w);
>   		if (ret == 0 && event) {
>   			spin_lock_irq(&dev->event_lock);
>   			drm_send_vblank_event(dev, pipe, event);
> @@ -10962,26 +10897,15 @@ static int __intel_set_mode(struct drm_crtc *crtc,
>   	 * on the DPLL.
>   	 */
>   	for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
> -		struct drm_framebuffer *old_fb = crtc->primary->fb;
> -		struct drm_i915_gem_object *old_obj = intel_fb_obj(old_fb);
> -		struct drm_i915_gem_object *obj = intel_fb_obj(fb);
> +		struct drm_plane *primary = intel_crtc->base.primary;
> +		int vdisplay, hdisplay;
>   
> -		mutex_lock(&dev->struct_mutex);
> -		ret = intel_pin_and_fence_fb_obj(crtc->primary, fb, NULL);
> -		if (ret != 0) {
> -			DRM_ERROR("pin & fence failed\n");
> -			mutex_unlock(&dev->struct_mutex);
> -			goto done;
> -		}
> -		if (old_fb)
> -			intel_unpin_fb_obj(old_obj);
> -		i915_gem_track_fb(old_obj, obj,
> -				  INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe));
> -		mutex_unlock(&dev->struct_mutex);
> -
> -		crtc->primary->fb = fb;
> -		crtc->x = x;
> -		crtc->y = y;
> +		drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay);
> +		ret = primary->funcs->update_plane(primary, &intel_crtc->base,
> +						   fb, 0, 0,
> +						   hdisplay, vdisplay,
> +						   x << 16, y << 16,
> +						   hdisplay << 16, vdisplay << 16);
>   	}
>   
>   	/* Now enable the clocks, plane, pipe, and connectors that we set up. */
> @@ -11447,11 +11371,14 @@ static int intel_crtc_set_config(struct drm_mode_set *set)
>   					   disable_pipes);
>   	} else if (config->fb_changed) {
>   		struct intel_crtc *intel_crtc = to_intel_crtc(set->crtc);
> -
> -		intel_crtc_wait_for_pending_flips(set->crtc);
> -
> -		ret = intel_pipe_set_base(set->crtc,
> -					  set->x, set->y, set->fb);
> +		struct drm_plane *primary = set->crtc->primary;
> +		int vdisplay, hdisplay;
> +
> +		drm_crtc_get_hv_timing(set->mode, &hdisplay, &vdisplay);
> +		ret = primary->funcs->update_plane(primary, set->crtc, set->fb,
> +						   0, 0, hdisplay, vdisplay,
> +						   set->x << 16, set->y << 16,
> +						   hdisplay << 16, vdisplay << 16);
>   
>   		/*
>   		 * We need to make sure the primary plane is re-enabled if it
> 

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