[CI,3/7] drm/i915: Force the GPU reset upon wedging

Submitted by Chris Wilson on Feb. 8, 2019, 3:37 p.m.

Details

Message ID 20190208153708.20023-3-chris@chris-wilson.co.uk
State New
Headers show
Series "Series without cover letter" ( rev: 1 ) in Intel GFX

Not browsing as part of any series.

Commit Message

Chris Wilson Feb. 8, 2019, 3:37 p.m.
When declaring the GPU wedged, we do need to hit the GPU with the reset
hammer so that its state matches our presumed state during cleanup. If
the reset fails, it fails, and we may be unhappy but wedged. However, if
we are testing our wedge/unwedged handling, the desync carries over into
the next test and promptly explodes.

References: https://bugs.freedesktop.org/show_bug.cgi?id=106702
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
---
 drivers/gpu/drm/i915/i915_reset.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Patch hide | download patch | download mbox

diff --git a/drivers/gpu/drm/i915/i915_reset.c b/drivers/gpu/drm/i915/i915_reset.c
index c67d6c2a09a2..64f26e17243a 100644
--- a/drivers/gpu/drm/i915/i915_reset.c
+++ b/drivers/gpu/drm/i915/i915_reset.c
@@ -532,9 +532,6 @@  typedef int (*reset_func)(struct drm_i915_private *,
 
 static reset_func intel_get_gpu_reset(struct drm_i915_private *i915)
 {
-	if (!i915_modparams.reset)
-		return NULL;
-
 	if (INTEL_GEN(i915) >= 8)
 		return gen8_reset_engines;
 	else if (INTEL_GEN(i915) >= 6)
@@ -599,6 +596,9 @@  bool intel_has_gpu_reset(struct drm_i915_private *i915)
 	if (USES_GUC(i915))
 		return false;
 
+	if (!i915_modparams.reset)
+		return NULL;
+
 	return intel_get_gpu_reset(i915);
 }
 
@@ -824,7 +824,7 @@  void i915_gem_set_wedged(struct drm_i915_private *i915)
 		reset_prepare_engine(engine);
 
 	/* Even if the GPU reset fails, it should still stop the engines */
-	if (INTEL_GEN(i915) >= 5)
+	if (!INTEL_INFO(i915)->gpu_reset_clobbers_display)
 		intel_gpu_reset(i915, ALL_ENGINES);
 
 	for_each_engine(engine, i915, id) {