[Intel-gfx] [PATCH] drm/i915/gt: Warn CI about an unrecoverable wedge

[Chris Wilson]

If we have a wedged GPU that we need to recover, but fail, add a taint
for CI to pickup and schedule a reboot.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com>
Cc: Petri Latvala <petri.latvala at intel.com>
---
 drivers/gpu/drm/i915/gt/intel_reset.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c b/drivers/gpu/drm/i915/gt/intel_reset.c
index e189897e8797..bc1b51349438 100644
--- a/drivers/gpu/drm/i915/gt/intel_reset.c
+++ b/drivers/gpu/drm/i915/gt/intel_reset.c
@@ -872,8 +872,14 @@ static bool __intel_gt_unset_wedged(struct intel_gt *gt)
 	ok = !HAS_EXECLISTS(gt->i915); /* XXX better agnosticism desired */
 	if (!INTEL_INFO(gt->i915)->gpu_reset_clobbers_display)
 		ok = __intel_gt_reset(gt, ALL_ENGINES) == 0;
-	if (!ok)
+	if (!ok) {
+		/*
+		 * Warn CI about the unrecoverable wedged condition.
+		 * Time for a reboot.
+		 */
+		add_taint_for_CI(TAINT_WARN);
 		return false;
+	}
 
 	/*
 	 * Undo nop_submit_request. We prevent all new i915 requests from
-- 
2.23.0