dma_fence_context_alloc
adev->fence_context = dma_fence_context_alloc(AMDGPU_MAX_RINGS);
uint64_t context = dma_fence_context_alloc(1);
dma_fence_context_alloc(1), 0,
dma_fence_context_alloc(AMDGPU_MAX_RINGS);
crtc->fence_context = dma_fence_context_alloc(1);
dev_priv->mm.unordered_timeline = dma_fence_context_alloc(1);
timeline->fence_context = dma_fence_context_alloc(1);
u64 dma_fence_context_alloc(unsigned num);
rdev->fence_context = dma_fence_context_alloc(RADEON_NUM_RINGS);
entity->fence_context = dma_fence_context_alloc(2);