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authorChris Wilson <chris@chris-wilson.co.uk>2010-08-04 12:37:41 +0100
committerEric Anholt <eric@anholt.net>2010-08-09 11:24:30 -0700
commitae7d49d879fd196bded306e9465e0aa5a203e971 (patch)
tree40bb7a541a38fade186a1ea8dadb94f525584a62 /drivers/gpu/drm
parent87f8ebf309b2df69b57be96bf36d2d61009fd296 (diff)
drm/i915: Emit a backtrace if we attempt to rebind a pinned buffer
This debugging trace was useful for finding the fbcon regression on i965, and it may prove useful again in future. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 24ee4622484..b0fb394b9ff 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4198,6 +4198,10 @@ i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment)
if (alignment == 0)
alignment = i915_gem_get_gtt_alignment(obj);
if (obj_priv->gtt_offset & (alignment - 1)) {
+ WARN(obj_priv->pin_count,
+ "bo is already pinned with incorrect alignment:"
+ " offset=%x, req.alignment=%x\n",
+ obj_priv->gtt_offset, alignment);
ret = i915_gem_object_unbind(obj);
if (ret)
return ret;