On 30 July 2018 at 08:53, Chris Wilson <ch...@chris-wilson.co.uk> wrote:
> We occasionally see that the clflush prior to a read of GPU data is
> returning stale data, reminiscent of much earlier bugs fixed by adding a
> second clflush for serialisation. As drm_clflush_virt_range() already
> supplies the workaround, use it rather than open code the clflush
> instruction.
>
> References: 396f5d62d1a5 ("drm: Restore double clflush on the last partial
> cacheline")
> Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.a...@intel.com>
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
