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drm/i915/guc: Remove racey GEM_BUG_ON

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A full GT reset can race with the last context put resulting in the
context ref count being zero but the destroyed bit not yet being set.
Remove GEM_BUG_ON in scrub_guc_desc_for_outstanding_g2h that asserts the
destroyed bit must be set in ref count is zero.

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211214170500.28569-4-matthew.brost@intel.com
This commit is contained in:
Matthew Brost 2021-12-14 09:04:56 -08:00 committed by John Harrison
parent 939d8e9c87
commit 7aa6d5fe6c
1 changed files with 0 additions and 2 deletions
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drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
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@ -1040,8 +1040,6 @@ static void scrub_guc_desc_for_outstanding_g2h(struct intel_guc *guc)
spin_unlock(&ce->guc_state.lock);
GEM_BUG_ON(!do_put && !destroyed);
if (pending_enable || destroyed || deregister) {
decr_outstanding_submission_g2h(guc);
if (deregister)