[Intel-gfx] [PATCH] drm/i915: Rate limit 'Fault errors' message

[Stefan Fritsch]

If linux is running as a guest and the host is doing igd pass-through
with VT-d enabled, this message is logged dozens of times per second.

Cc: stable at vger.kernel.org
Signed-off-by: Stefan Fritsch <sf at sfritsch.de>
---

The i915 driver should also detect VT-d in this case, but that is a
different issue.  I have sent a separate mail with subject 'Detecting
Vt-d when running as guest os'.


 drivers/gpu/drm/i915/i915_irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 759f523c6a6b..29096634e697 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2337,7 +2337,7 @@ gen8_de_irq_handler(struct drm_i915_private *dev_priv, u32 master_ctl)
 
 		fault_errors = iir & gen8_de_pipe_fault_mask(dev_priv);
 		if (fault_errors)
-			drm_err(&dev_priv->drm,
+			drm_err_ratelimited(&dev_priv->drm,
 				"Fault errors on pipe %c: 0x%08x\n",
 				pipe_name(pipe),
 				fault_errors);
-- 
2.28.0