1// SPDX-License-Identifier: GPL-2.0
2/*
3 * s390 arch random implementation.
4 *
5 * Copyright IBM Corp. 2017, 2020
6 * Author(s): Harald Freudenberger
7 */
8
9#include <linux/kernel.h>
10#include <linux/atomic.h>
11#include <linux/random.h>
12#include <linux/static_key.h>
13#include <asm/archrandom.h>
14#include <asm/cpacf.h>
15
16DEFINE_STATIC_KEY_FALSE(s390_arch_random_available);
17
18atomic64_t s390_arch_random_counter = ATOMIC64_INIT(0);
19EXPORT_SYMBOL(s390_arch_random_counter);
20