diff mbox

[24/41] drm/i915: handle faked missed interrupts as simulated hangs, too

Message ID 1407146233-24026-25-git-send-email-dheerajx.s.jamwal@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Dheeraj Jamwal Aug. 4, 2014, 9:56 a.m. UTC 
From: Daniel Vetter <daniel.vetter@ffwll.ch>

Otherwise QA will report this as a real hang when running igt
ZZ_missed_irq.

v2: Actually test the right stuff and really shut up the DRM_ERROR
output ...

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=70747
Tested-by: lu hua <huax.lu@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit f4adcd247766e5b914f861ed143ff328f869bf80)

Signed-off-by: Dheeraj Jamwal <dheerajx.s.jamwal@intel.com>
---
 drivers/gpu/drm/i915/i915_irq.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 1a7dc77..68936da 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2258,8 +2258,12 @@  static void i915_hangcheck_elapsed(unsigned long data)
 				if (waitqueue_active(&ring->irq_queue)) {
 					/* Issue a wake-up to catch stuck h/w. */
 					if (!test_and_set_bit(ring->id, &dev_priv->gpu_error.missed_irq_rings)) {
-						DRM_ERROR("Hangcheck timer elapsed... %s idle\n",
-							  ring->name);
+						if (!(dev_priv->gpu_error.test_irq_rings & intel_ring_flag(ring)))
+							DRM_ERROR("Hangcheck timer elapsed... %s idle\n",
+								  ring->name);
+						else
+							DRM_INFO("Fake missed irq on %s\n",
+								 ring->name);
 						wake_up_all(&ring->irq_queue);
 					}
 					/* Safeguard against driver failure */