FreeBSD Bugzilla – Attachment 147359 Details for
Bug 193500
Interrupt storm after loading i915kms module on Gen4 Intel GPU
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[patch]
Reset gmbus interrupt mask register explicitely
1.patch (text/plain), 514 bytes, created by
Konstantin Belousov
on 2014-09-15 18:40:39 UTC
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Description:
Reset gmbus interrupt mask register explicitely
Filename:
MIME Type:
Creator:
Konstantin Belousov
Created:
2014-09-15 18:40:39 UTC
Size:
514 bytes
patch
obsolete
>diff --git a/sys/dev/drm2/i915/intel_iic.c b/sys/dev/drm2/i915/intel_iic.c >index 412349c..3a1b34d 100644 >--- a/sys/dev/drm2/i915/intel_iic.c >+++ b/sys/dev/drm2/i915/intel_iic.c >@@ -128,10 +128,13 @@ intel_iic_reset(struct drm_device *dev) > struct drm_i915_private *dev_priv; > > dev_priv = dev->dev_private; >- if (HAS_PCH_SPLIT(dev)) >+ if (HAS_PCH_SPLIT(dev)) { > I915_WRITE(PCH_GMBUS0, 0); >- else >+ I915_WRITE(PCH_GMBUS4, 0); >+ } else { > I915_WRITE(GMBUS0, 0); >+ I915_WRITE(GMBUS4, 0); >+ } > } > > static int
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