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Commit f7d85c1e authored by Jesse Barnes's avatar Jesse Barnes Committed by Daniel Vetter
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drm/i915/vlv: reduce GT FIFO error info to a debug message 

It indicates a probable BIOS bug, but it appears to be harmless, and
there's nothing the user can do about it anyway, so reduce to a debug
msg.  I've filed a bug with the BIOS folks about it anyway, so hopefully
they'll fix whatever GT SB read they were doing when the GT was off.

References: https://bugs.freedesktop.org/show_bug.cgi?id=69396


Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 5848ad40

drivers/gpu/drm/i915/intel_pm.c

+2 −1
Original line number Diff line number Diff line
@@ -3804,7 +3804,8 @@ static void valleyview_enable_rps(struct drm_device *dev) 
	WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));



	if ((gtfifodbg = I915_READ(GTFIFODBG))) {

		DRM_ERROR("GT fifo had a previous error %x\n", gtfifodbg);

		DRM_DEBUG_DRIVER("GT fifo had a previous error %x\n",

				 gtfifodbg);

		I915_WRITE(GTFIFODBG, gtfifodbg);

	}