[linux-block.git] / arch / s390 / crypto / arch_random.c

// SPDX-License-Identifier: GPL-2.0
/*
 * s390 arch random implementation.
 *
 * Copyright IBM Corp. 2017, 2020
 * Author(s): Harald Freudenberger
 */

#include <linux/kernel.h>
#include <linux/atomic.h>
#include <linux/random.h>
#include <linux/static_key.h>
#include <asm/cpacf.h>

DEFINE_STATIC_KEY_FALSE(s390_arch_random_available);

atomic64_t s390_arch_random_counter = ATOMIC64_INIT(0);
EXPORT_SYMBOL(s390_arch_random_counter);
Commit	Line	Data
20a884f5	1	// SPDX-License-Identifier: GPL-2.0
4c637cd8 HF	2	/*
	3	* s390 arch random implementation.
	4	*
ff98cc98	5	* Copyright IBM Corp. 2017, 2020
966f53e7	6	* Author(s): Harald Freudenberger
4c637cd8 HF	7	*/
	8
	9	#include <linux/kernel.h>
	10	#include <linux/atomic.h>
92acfb74	11	#include <linux/random.h>
4c637cd8 HF	12	#include <linux/static_key.h>
	13	#include <asm/cpacf.h>
	14
	15	DEFINE_STATIC_KEY_FALSE(s390_arch_random_available);
	16
	17	atomic64_t s390_arch_random_counter = ATOMIC64_INIT(0);
	18	EXPORT_SYMBOL(s390_arch_random_counter);