amdgpu_ring_max_ibs
if (num_ibs[r] >= amdgpu_ring_max_ibs(chunk_ib->ip_type))
max_ibs[i] = amdgpu_ring_max_ibs(i);
amdgpu_ring_max_ibs(ring->funcs->type) * ring->funcs->emit_ib_size;
unsigned int amdgpu_ring_max_ibs(enum amdgpu_ring_type type);