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drm/i915: don't allow tiling changes on pinned buffers v2 

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.vetter@ffwll.ch>
Signed-off-by: Eric Anholt <eric@anholt.net>
hifive-unleashed-5.1
Daniel Vetter 2010-04-23 23:01:01 +02:00 committed by Eric Anholt
parent 149c36a346
commit 31770bd49a
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/i915/i915_gem_tiling.c
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@ -283,6 +283,11 @@ 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;