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    SubjectRe: [PATCH 3/6] drm/i915/gt: Skip TLB invalidations once wedged
    Hi Mauro,

    On Wed, Jun 15, 2022 at 04:27:37PM +0100, Mauro Carvalho Chehab wrote:
    > From: Chris Wilson <chris.p.wilson@intel.com>
    >
    > Skip all further TLB invalidations once the device is wedged and
    > had been reset, as, on such cases, it can no longer process instructions
    > on the GPU and the user no longer has access to the TLB's in each engine.
    >
    > 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>
    > ---
    >
    > See [PATCH 0/6] at: https://lore.kernel.org/all/cover.1655306128.git.mchehab@kernel.org/
    >
    > drivers/gpu/drm/i915/gt/intel_gt.c | 3 +++
    > 1 file changed, 3 insertions(+)
    >
    > diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
    > index 61b7ec5118f9..fb4fd5273ca4 100644
    > --- a/drivers/gpu/drm/i915/gt/intel_gt.c
    > +++ b/drivers/gpu/drm/i915/gt/intel_gt.c
    > @@ -1226,6 +1226,9 @@ void intel_gt_invalidate_tlbs(struct intel_gt *gt)
    > if (I915_SELFTEST_ONLY(gt->awake == -ENODEV))
    > return;
    >
    > + if (intel_gt_is_wedged(gt))
    > + return;
    > +

    This looks familiar :)

    Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>

    Thanks,
    Andi

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