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drm/i915/gt: Cleanup heartbeat systole first 

Before we grab the engine wakeref, tidy up the previous heartbeat
request. If we then abort because the engine powerwell is off, we ensure
the request is freed as we know we will not have freed it when
cancelling the work (as the work is running!).

Fixes: 841e867286 ("drm/i915/gt: Only drop heartbeat.systole if the sole owner")
References: 058179e72e ("drm/i915/gt: Replace hangcheck by heartbeats")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106223410.30334-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-11-06 22:34:10 +00:00
parent 70dfbc29ab
commit 3466a3def2
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
View File

@ -63,15 +63,15 @@ static void heartbeat(struct work_struct *wrk)
struct intel_context *ce = engine->kernel_context;
struct i915_request *rq;
if (!intel_engine_pm_get_if_awake(engine))
return;
rq = engine->heartbeat.systole;
if (rq && i915_request_completed(rq)) {
i915_request_put(rq);
engine->heartbeat.systole = NULL;
}
if (!intel_engine_pm_get_if_awake(engine))
return;
if (intel_gt_is_wedged(engine->gt))
goto out;