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path: root/drivers/gpu/drm/i915/i915_gem_tiling.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_tiling.c')
-rw-r--r--drivers/gpu/drm/i915/i915_gem_tiling.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 1294cf695df0..b85d7ebd9bee 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -345,6 +345,15 @@ i915_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
if (!obj)
return -ENOENT;
+ /*
+ * The tiling mode of proxy objects is handled by its generator, and
+ * not allowed to be changed by userspace.
+ */
+ if (i915_gem_object_is_proxy(obj)) {
+ err = -ENXIO;
+ goto err;
+ }
+
if (!i915_tiling_ok(obj, args->tiling_mode, args->stride)) {
err = -EINVAL;
goto err;