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 <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_gem.c | 4 ++++
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 b09def9..b2ff908 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4010,6 +4010,10 @@ 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;
--
1.7.1
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