[PATCH] drm/cirrus: rewrite and modernize driver.
Gerd Hoffmann
kraxel at redhat.com
Wed Apr 3 08:53:41 UTC 2019
> > +struct cirrus_device {
> > + struct drm_device *dev;
>
> Why not embed drm_device? It's the latest rage :-)
Sure, can do that.
> > +void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
> > + struct drm_plane_state *old_state)
> > +{
> > + struct drm_plane_state *state = pipe->plane.state;
> > + struct drm_crtc *crtc = &pipe->crtc;
> > + struct drm_rect rect;
> > +
> > + if (drm_atomic_helper_damage_merged(old_state, state, &rect))
> > + cirrus_fb_blit_rect(pipe->plane.state->fb, &rect);
> > +
> > + if (crtc->state->event) {
> > + spin_lock_irq(&crtc->dev->event_lock);
> > + drm_crtc_send_vblank_event(crtc, crtc->state->event);
> > + spin_unlock_irq(&crtc->dev->event_lock);
> > + crtc->state->event = NULL;
> > + }
> > +}
> > +static int cirrus_fb_dirty(struct drm_framebuffer *fb,
> > + struct drm_file *file_priv,
> > + unsigned int flags, unsigned int color,
> > + struct drm_clip_rect *clips,
> > + unsigned int num_clips)
> > +{
> > + struct cirrus_device *cirrus = fb->dev->dev_private;
> > +
> > + if (cirrus->pipe.plane.state->fb != fb)
> > + return 0;
> > +
> > + if (num_clips)
> > + cirrus_fb_blit_clips(fb, clips, num_clips);
> > + else
> > + cirrus_fb_blit_fullscreen(fb);
> > + return 0;
> > +}
>
> Why not use the dirty helpers and implement dirty rect support in your
> main plane update function?
Dirty rect support is already there, see above.
So I can just remove cirrus_fb_dirty() and hook up
drm_atomic_helper_dirtyfb() instead. Easy ;)
cheers,
Gerd
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