Makes no sense and complicates matters for pipelined tiling changes.
So don't allow it and return -EBUSY.
v2: Fix reference leak. Thanks to Owain Ainsworth for spotting this.
Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch>
---
drivers/gpu/drm/i915/i915_gem_tiling.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c
b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 449157f..4aed1f3 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -287,6 +287,11 @@ i915_gem_set_tiling(struct drm_device *dev, void *data,
return -EINVAL;
}
+ if (obj_priv->pin_count) {
+ drm_gem_object_unreference_unlocked(obj);
+ return -EBUSY;
+ }
+
if (args->tiling_mode == I915_TILING_NONE) {
args->swizzle_mode = I915_BIT_6_SWIZZLE_NONE;
args->stride = 0;
--
1.6.6.1
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