'commit 6e66dc05b54f ("drm/amdgpu: set the VM pointer to NULL in amdgpu_job_prepare")' set job->vm as NULL if there is no fence. It will cause emit switch buffer be skippen if job->vm set as NULL. Check job rather than vm could solve this problem. Signed-off-by: Lin.Cao <lincao12@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c index e0bc37557d2c..2ea98ec60220 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c @@ -297,7 +297,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned int num_ibs, amdgpu_ring_patch_cond_exec(ring, cond_exec); ring->current_ctx = fence_ctx; - if (vm && ring->funcs->emit_switch_buffer) + if (job && ring->funcs->emit_switch_buffer) amdgpu_ring_emit_switch_buffer(ring); if (ring->funcs->emit_wave_limit && -- 2.46.1