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drm/i915/gt: Always flush the submission queue on checking for idle

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We check for idle during debug prints and other debugging actions.
Simplify the flow by not touching execlists state.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210205174358.28465-1-chris@chris-wilson.co.uk
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2021-02-05 17:43:57 +00:00 committed by Daniel Vetter
parent 985458d706
commit 2da21daa7d
1 changed files with 2 additions and 8 deletions
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10
drivers/gpu/drm/i915/gt/intel_engine_cs.c
View file

@ -1254,14 +1254,8 @@ bool intel_engine_is_idle(struct intel_engine_cs *engine)
return true;
/* Waiting to drain ELSP? */
if (execlists_active(&engine->execlists)) {
synchronize_hardirq(to_pci_dev(engine->i915->drm.dev)->irq);
intel_engine_flush_submission(engine);
if (execlists_active(&engine->execlists))
return false;
}
synchronize_hardirq(to_pci_dev(engine->i915->drm.dev)->irq);
intel_engine_flush_submission(engine);
/* ELSP is empty, but there are ready requests? E.g. after reset */
if (!RB_EMPTY_ROOT(&engine->execlists.queue.rb_root))