Signed-off-by: Lionel Landwerlin <lionel.g.landwer...@intel.com>
---
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 09248398fa7b..f1af3490f96b 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -2494,6 +2494,14 @@ get_legacy_fence_array(struct i915_execbuffer *eb,
goto err;
}
+ if ((user_fence.flags & I915_EXEC_FENCE_SIGNAL) &&
+ syncobj->is_timeline) {
+ DRM_DEBUG("Cannot replace fence in timeline syncobj\n");
+ drm_syncobj_put(syncobj);
+ err = -EINVAL;
+ goto err;
+ }
+
if (user_fence.flags & I915_EXEC_FENCE_WAIT) {
fence = drm_syncobj_fence_get(syncobj);
if (!fence) {
--
2.23.0
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