1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __ASM_S390_MACCESS_H
3#define __ASM_S390_MACCESS_H
4
5#include <linux/types.h>
6
7#define MEMCPY_REAL_SIZE	PAGE_SIZE
8#define MEMCPY_REAL_MASK	PAGE_MASK
9
10struct iov_iter;
11
12extern unsigned long __memcpy_real_area;
13extern pte_t *memcpy_real_ptep;
14size_t memcpy_real_iter(struct iov_iter *iter, unsigned long src, size_t count);
15int memcpy_real(void *dest, unsigned long src, size_t count);
16#ifdef CONFIG_CRASH_DUMP
17int copy_oldmem_kernel(void *dst, unsigned long src, size_t count);
18#endif
19
20#endif /* __ASM_S390_MACCESS_H */
21