Hi Mauro, On Thu, Jul 14, 2022 at 01:06:09PM +0100, Mauro Carvalho Chehab wrote: > From: Chris Wilson <[email protected]> > > Don't flush TLBs when the buffer is only used in the GGTT under full > control of the kernel, as there's no risk of concurrent access > and stale access from prefetch. > > We only need to invalidate the TLB if they are accessible by the user. > That helps to reduce the performance regression introduced by TLB > invalidate logic. > > Cc: [email protected] > Fixes: 7938d61591d3 ("drm/i915: Flush TLBs before releasing backing store") > Signed-off-by: Chris Wilson <[email protected]> > Cc: Fei Yang <[email protected]> > Cc: Andi Shyti <[email protected]> > Acked-by: Thomas Hellström <[email protected]> > Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Please, once you have sorted out Tvrtko's question you can add: Reviewed-by: Andi Shyti <[email protected]> Thanks, Andi
