Re: [PATCH 14/15] drm/i915: Track frontbuffer invalidation/flushing

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On Tue, Jun 17, 2014 at 07:50:45AM +0100, Chris Wilson wrote:
> On Mon, Jun 16, 2014 at 07:51:34PM +0200, Daniel Vetter wrote:
> > @@ -2227,6 +2223,9 @@ i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj)
> >  			list_move_tail(&vma->mm_list, &vm->inactive_list);
> >  	}
> >  
> > +	if (obj->frontbuffer_bits)
> > +		intel_fb_flush(obj, true);
> > +
> >  	list_del_init(&obj->ring_list);
> >  	obj->ring = NULL;
> >  
> > @@ -3556,6 +3555,8 @@ i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj)
> >  	old_write_domain = obj->base.write_domain;
> >  	obj->base.write_domain = 0;
> >  
> > +	intel_fb_flush(obj, false);
> > +
> I think it is worth the if (obj->frontbuffer_bit) check everywhere.

Well it's the first thing fb_flush checks, so the additional ones are just
stupid micro-optimizations I guess. Should I remove them everywhere?
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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