[Intel-gfx] [PATCH] drm/i915: Queue hangcheck when irqs are disabled

Chris Wilson chris at chris-wilson.co.uk
Mon Jan 23 09:37:24 UTC 2017


Ensure that the hangcheck is queued even in the absence of interrupts.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala at intel.com>
---
 drivers/gpu/drm/i915/intel_breadcrumbs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/intel_breadcrumbs.c b/drivers/gpu/drm/i915/intel_breadcrumbs.c
index 7681bcd2717e..b574cc414d43 100644
--- a/drivers/gpu/drm/i915/intel_breadcrumbs.c
+++ b/drivers/gpu/drm/i915/intel_breadcrumbs.c
@@ -175,6 +175,7 @@ static void __intel_breadcrumbs_enable_irq(struct intel_breadcrumbs *b)
 	if (!b->irq_enabled ||
 	    test_bit(engine->id, &i915->gpu_error.missed_irq_rings)) {
 		mod_timer(&b->fake_irq, jiffies + 1);
+		i915_queue_hangcheck(i915);
 	} else {
 		/* Ensure we never sleep indefinitely */
 		GEM_BUG_ON(!time_after(b->timeout, jiffies));
-- 
2.11.0



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