[Intel-gfx] [PATCH] drm/i915: Reboot CI if we get wedged during driver init

[Michał Winiarski]

From: Michał Winiarski <michal.winiarski at intel.com>

Getting wedged device on driver init is pretty much unrecoverable.
Since we're running verious scenarios that may potentially hit this in
CI (module reload / selftests / hotunplug), and if it happens, it means
that we can't trust any subsequent CI results, we should just apply the
taint to let the CI know that it should reboot (CI checks taint between
test runs).

Signed-off-by: Michał Winiarski <michal.winiarski at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Petri Latvala <petri.latvala at intel.com>
---
 drivers/gpu/drm/i915/gt/intel_reset.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c b/drivers/gpu/drm/i915/gt/intel_reset.c
index 0156f1f5c736..d27e8bb7d550 100644
--- a/drivers/gpu/drm/i915/gt/intel_reset.c
+++ b/drivers/gpu/drm/i915/gt/intel_reset.c
@@ -1360,6 +1360,8 @@ void intel_gt_set_wedged_on_init(struct intel_gt *gt)
 		     I915_WEDGED_ON_INIT);
 	intel_gt_set_wedged(gt);
 	set_bit(I915_WEDGED_ON_INIT, &gt->reset.flags);
+
+	add_taint_for_CI(TAINT_WARN);
 }
 
 void intel_gt_init_reset(struct intel_gt *gt)
-- 
2.27.0