[Intel-gfx] [PATCH 2/3] drm/i915: Mark the kernel as tainted if we fail the preproduction check

[Chris Wilson]

Preproduction sdv are not supported beyond the release of production
hardware, and continued use is ill-advised. Mark the kernel as tainted
to reinforce the error.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: "Zanoni, Paulo R" <paulo.r.zanoni at intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Cc: Jani Nikula <jani.nikula at intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/i915_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index c2c210b0f47f..ce22ab426d86 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -787,9 +787,11 @@ static void intel_detect_preproduction_hw(struct drm_i915_private *dev_priv)
 	sdv |= IS_HSW_EARLY_SDV(dev_priv);
 	sdv |= IS_SKL_REVID(dev_priv, 0, SKL_REVID_F0);
 
-	if (sdv)
+	if (sdv) {
 		DRM_ERROR("This is a pre-production stepping. "
 			  "It may not be fully functional.\n");
+		add_taint(TAINT_MACHINE_CHECK, LOCKDEP_STILL_OK);
+	}
 }
 
 /**
-- 
2.11.0