[2/2] drm/i915/gt: Move the heartbeat into the highprio system wq
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Message ID 20200701083936.28723-2-chris@chris-wilson.co.uk
State New
Headers show
  • [1/2] drm/i915/gt: Harden the heartbeat against a stuck driver
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Commit Message

Chris Wilson July 1, 2020, 8:39 a.m. UTC
As we ensure that the heartbeat is reasonably fast (and should not
block), move the heartbeat work into the system_highprio_wq to avoid
having this essential task be blocked behind other slow work, such as
our own retire_work_handler.

References: https://gitlab.freedesktop.org/drm/intel/-/issues/2119
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff mbox series

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
index 1663ab5c68a5..3699fa8a79e8 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
@@ -32,7 +32,7 @@  static bool next_heartbeat(struct intel_engine_cs *engine)
 	delay = msecs_to_jiffies_timeout(delay);
 	if (delay >= HZ)
 		delay = round_jiffies_up_relative(delay);
-	mod_delayed_work(system_wq, &engine->heartbeat.work, delay);
+	mod_delayed_work(system_highpri_wq, &engine->heartbeat.work, delay);
 	return true;