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authorChris Wilson <chris@chris-wilson.co.uk>2019-11-06 22:34:10 +0000
committerChris Wilson <chris@chris-wilson.co.uk>2019-11-07 07:49:55 +0000
commit3466a3def2c01e0ee3e2035f2dc988816cfab460 (patch)
treeef8d5d849a0391235655a8ebc7610e3aac3af6f0 /drivers
parent70dfbc29ab9b39b34b4713fb6bacc05d8109968b (diff)
downloadlinux-3466a3def2c01e0ee3e2035f2dc988816cfab460.tar.bz2
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: 841e86728615 ("drm/i915/gt: Only drop heartbeat.systole if the sole owner") References: 058179e72e09 ("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
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
index 06aa14c7aa8c..c91fd4e4af29 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
@@ -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;