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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [gm45 regression] [drm:init_ring_common]: *ERROR* render ring initialization failed"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76554#c60">Comment # 60</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [gm45 regression] [drm:init_ring_common]: *ERROR* render ring initialization failed"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76554">bug 76554</a>
from <span class="vcard"><a class="email" href="mailto:mika.kuoppala@intel.com" title="Mika Kuoppala <mika.kuoppala@intel.com>"> <span class="fn">Mika Kuoppala</span></a>
</span></b>
<pre>No good ideas here either, but would be nice to see if this makes a difference
on
ring init:
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 4024e16..708a1da 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -573,6 +573,15 @@ static int i915_drm_thaw_early(struct drm_device *dev)
static int __i915_drm_thaw(struct drm_device *dev, bool restore_gtt_mappings)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ ret = intel_gpu_reset(dev);
+ mutex_unlock(&dev->struct_mutex);
+
+ if (ret)
+ DRM_ERROR("failed to reset the GPU on resume (%d), ignoring\n",
+ ret);</pre>
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