On Die, 2011-06-07 at 21:42 +0800, Donnie Fang wrote: > 3D render image on WC AGP aperture BO and then CPU fetch the image > from this bo, in order to achieve performance, after 3D finished > rendering, validate this bo into cached system memory and then read it > from system memory. But I always get garbage from there. > After check TTM bo validate codes, it has dealt with cache coherence > properly, i wonder whether there is something I misunderstand or it is > not allowed to move the WC bo from AGP to system memory for reading? Can you post patches showing what you've tried? -- Earthling Michel DÃnzer | http://www.vmware.com Libre software enthusiast | Debian, X and DRI developer ------------------------------------------------------------------------------ EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev -- _______________________________________________ Dri-devel mailing list Dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
