Messages in this thread | | | Date | Thu, 23 Jun 2022 13:04:32 +0200 | From | Andi Shyti <> | Subject | Re: [PATCH 1/6] drm/i915/gt: Ignore TLB invalidations on idle engines |
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Hi Mauro,
On Wed, Jun 15, 2022 at 04:27:35PM +0100, Mauro Carvalho Chehab wrote: > From: Chris Wilson <chris.p.wilson@intel.com> > > As an extension of the current skip TLB invalidations, > check if the device is powered down prior to any engine activity, > > as, on such cases, all the TLBs were already invalidated, so an > explicit TLB invalidation is not needed. > > This becomes more significant with GuC, as it can only do so when > the connection to the GuC is awake. > > Fixes: 7938d61591d3 ("drm/i915: Flush TLBs before releasing backing store") > > Signed-off-by: Chris Wilson <chris.p.wilson@intel.com> > Cc: Fei Yang <fei.yang@intel.com> > Cc: Andi Shyti <andi.shyti@linux.intel.com> > Cc: stable@vger.kernel.org > Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> > Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Andi
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