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a984f27ec2
Make Real Memory Copy area size and mask explicit. This does not bring any functional change and only needed for clarity. Acked-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
20 lines
564 B
C
20 lines
564 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_S390_MACCESS_H
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#define __ASM_S390_MACCESS_H
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#include <linux/types.h>
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#define MEMCPY_REAL_SIZE PAGE_SIZE
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#define MEMCPY_REAL_MASK PAGE_MASK
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struct iov_iter;
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extern unsigned long __memcpy_real_area;
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extern pte_t *memcpy_real_ptep;
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size_t memcpy_real_iter(struct iov_iter *iter, unsigned long src, size_t count);
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int memcpy_real(void *dest, unsigned long src, size_t count);
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#ifdef CONFIG_CRASH_DUMP
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int copy_oldmem_kernel(void *dst, unsigned long src, size_t count);
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#endif
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#endif /* __ASM_S390_MACCESS_H */
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