mpidr_hash_size
if (mpidr_hash_size() > 4 * num_possible_cpus())
ctx_ptr = kcalloc(mpidr_hash_size(), sizeof(u32), GFP_KERNEL);
if (mpidr_hash_size() > 4 * num_possible_cpus())
sleep_save_stash = kcalloc(mpidr_hash_size(), sizeof(*sleep_save_stash),