Similarly to the host path from drm_syncobj.c we would like to disallow those operations to help applications figure where they using the wrong kind of ioctl.
Signed-off-by: Lionel Landwerlin lionel.g.landwerlin@intel.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 2e53feed40e2..d9bbc31e97d0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -1159,6 +1159,8 @@ static int amdgpu_cs_process_syncobj_out_dep(struct amdgpu_cs_parser *p, drm_syncobj_find(p->filp, deps[i].handle); if (!p->post_deps[i].syncobj) return -EINVAL; + if (p->post_deps[i].syncobj->is_timeline) + return -EINVAL; p->post_deps[i].chain = NULL; p->post_deps[i].point = 0; p->num_post_deps++;