Before we assert that the engine is idle, make sure we flush any residual tasklet. After that point, if the engine is not idle, more work may be queued despite us trying to park the engine and go to sleep.
References: https://bugs.freedesktop.org/show_bug.cgi?id=103479 Signed-off-by: Chris Wilson <[email protected]> Cc: Mika Kuoppala <[email protected]> --- drivers/gpu/drm/i915/intel_engine_cs.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c index 0f8c542f0af2..70eeafe8a6ec 100644 --- a/drivers/gpu/drm/i915/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/intel_engine_cs.c @@ -1542,6 +1542,10 @@ void intel_engines_park(struct drm_i915_private *i915) enum intel_engine_id id; for_each_engine(engine, i915, id) { + /* Flush the residual irq tasklets first. */ + intel_engine_disarm_breadcrumbs(engine); + tasklet_kill(&engine->execlists.irq_tasklet); + /* * We are committed now to parking the engines, make sure there * will be no more interrupts arriving later and the engines @@ -1558,9 +1562,6 @@ void intel_engines_park(struct drm_i915_private *i915) if (engine->park) engine->park(engine); - intel_engine_disarm_breadcrumbs(engine); - tasklet_kill(&engine->execlists.irq_tasklet); - i915_gem_batch_pool_fini(&engine->batch_pool); engine->execlists.no_priolist = false; } -- 2.15.0.rc2 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
