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drm/i915/execlists: Ensure the context is reloaded after a GPU reset

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After we manipulate the context to allow replay after a GPU reset, force
that context to be reloaded. This should be a layer of paranoia, for if
the GPU was reset, the context will no longer be resident!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190912092933.4729-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-09-12 10:29:33 +01:00
parent 582a6f90aa
commit a17592effd
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/i915/gt/intel_lrc.c
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@ -2445,6 +2445,7 @@ static void __execlists_reset(struct intel_engine_cs *engine, bool stalled)
intel_ring_update_space(ce->ring);
__execlists_reset_reg_state(ce, engine);
__execlists_update_reg_state(ce, engine);
ce->lrc_desc |= CTX_DESC_FORCE_RESTORE; /* paranoid: GPU was reset! */
mutex_release(&ce->pin_mutex.dep_map, 0, _THIS_IP_);
unwind: