atomic64_sub
atomic64_sub(amdgpu_bo_size(bo), &adev->vram_pin_size);
atomic64_sub(amdgpu_vram_mgr_bo_visible_size(bo),
atomic64_sub(amdgpu_bo_size(bo), &adev->gart_pin_size);
atomic64_sub(vis_usage, &mgr->vis_usage);
atomic64_sub(size, &pdd->vram_usage);
atomic64_sub(amdgpu_bo_size(svm_bo->bo), &pdd->vram_usage);
#define atomic_long_sub(i, v) atomic64_sub(i, v)