Commit 453cfe21 authored Feb 01, 2017 by Chris Wilson

drm/i915/execlists: Add interrupt-pending check to intel_execlists_idle()



Primarily this serves as a sanity check that the bit has been cleared
before we suspend (and hasn't reappeared after resume).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tursulin@ursulin.net>
Link: http://patchwork.freedesktop.org/patch/msgid/20170201131222.11882-1-chris@chris-wilson.co.uk


Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>

parent e2de845e

drivers/gpu/drm/i915/intel_lrc.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -508,9 +508,15 @@ bool intel_execlists_idle(struct drm_i915_private *dev_priv)
		if (!i915.enable_execlists)
		return true;

		for_each_engine(engine, dev_priv, id)
		for_each_engine(engine, dev_priv, id) {
		/* Interrupt/tasklet pending? */
		if (test_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted))
		return false;

		/* Both ports drained, no more ELSP submission? */
		if (!execlists_elsp_idle(engine))
		return false;
		}

		return true;
		}