diff options
| -rw-r--r-- | drivers/gpu/drm/i915/gt/gen8_engine_cs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c index 5b932d2dbfd3..07ba524da90b 100644 --- a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c @@ -488,6 +488,7 @@ static u32 *gen8_emit_wa_tail(struct i915_request *rq, u32 *cs) static u32 *emit_preempt_busywait(struct i915_request *rq, u32 *cs) { + *cs++ = MI_ARB_CHECK; /* trigger IDLE->ACTIVE first */ *cs++ = MI_SEMAPHORE_WAIT | MI_SEMAPHORE_GLOBAL_GTT | MI_SEMAPHORE_POLL | @@ -495,6 +496,7 @@ static u32 *emit_preempt_busywait(struct i915_request *rq, u32 *cs) *cs++ = 0; *cs++ = preempt_address(rq->engine); *cs++ = 0; + *cs++ = MI_NOOP; return cs; } |