On Fri, 25 Mar 2011 12:16:25 +0000, Chris Wilson <[email protected]> wrote: > We ensure that an allocated region within the GTT matches the proposed > usage restrictions. For fenced buffers on old hardware, this means > rounding up the allocation to the next power of two size and aligning it > to that size. For unfenced buffers, we need to ensure that the start and > end of the allocation is aligned to an even tile row. > > v2: Apply the allocation fixup to all devices
I verified that it has no substantial impact on performance of gen4+ devices using cairo-gl/xlib. (Since cairo likes to exercise surface creation and reuse a lot.) However, I'm not sure if this truly prevents the corruption on i8xx with 2.14.0. Can somebody break out an old machine and test? -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
