]> git.openfabrics.org - ~shefty/rdma-dev.git/blobdiff - drivers/gpu/drm/i915/intel_ringbuffer.c
drm/i915/ringbuffer: Only print an error on the second attempt to reset head
[~shefty/rdma-dev.git] / drivers / gpu / drm / i915 / intel_ringbuffer.c
index b83306f9244b6c887d84976b4f1801449445941a..89a65be8a3f364359edaf6add71b6259affa3cbd 100644 (file)
@@ -156,23 +156,25 @@ static int init_ring_common(struct drm_device *dev,
 
        /* G45 ring initialization fails to reset head to zero */
        if (head != 0) {
-               DRM_ERROR("%s head not reset to zero "
-                               "ctl %08x head %08x tail %08x start %08x\n",
-                               ring->name,
-                               I915_READ_CTL(ring),
-                               I915_READ_HEAD(ring),
-                               I915_READ_TAIL(ring),
-                               I915_READ_START(ring));
+               DRM_DEBUG_KMS("%s head not reset to zero "
+                             "ctl %08x head %08x tail %08x start %08x\n",
+                             ring->name,
+                             I915_READ_CTL(ring),
+                             I915_READ_HEAD(ring),
+                             I915_READ_TAIL(ring),
+                             I915_READ_START(ring));
 
                I915_WRITE_HEAD(ring, 0);
 
-               DRM_ERROR("%s head forced to zero "
-                               "ctl %08x head %08x tail %08x start %08x\n",
-                               ring->name,
-                               I915_READ_CTL(ring),
-                               I915_READ_HEAD(ring),
-                               I915_READ_TAIL(ring),
-                               I915_READ_START(ring));
+               if (I915_READ_HEAD(ring) & HEAD_ADDR) {
+                       DRM_ERROR("failed to set %s head to zero "
+                                 "ctl %08x head %08x tail %08x start %08x\n",
+                                 ring->name,
+                                 I915_READ_CTL(ring),
+                                 I915_READ_HEAD(ring),
+                                 I915_READ_TAIL(ring),
+                                 I915_READ_START(ring));
+               }
        }
 
        I915_WRITE_CTL(ring,