blob: 7510d1a23124965050743a059058e571af2ebd33 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0-only
* Copyright (C) 2017 ARM Ltd.
#include <linux/uaccess.h>
#include <asm/barrier.h>
#include <asm/cacheflush.h>
void memcpy_flushcache(void *dst, const void *src, size_t cnt)
* We assume this should not be called with @dst pointing to
* non-cacheable memory, such that we don't need an explicit
* barrier to order the cache maintenance against the memcpy.
memcpy(dst, src, cnt);
dcache_clean_pop((unsigned long)dst, (unsigned long)dst + cnt);
unsigned long __copy_user_flushcache(void *to, const void __user *from,
unsigned long n)
unsigned long rc;
rc = raw_copy_from_user(to, from, n);
/* See above */
dcache_clean_pop((unsigned long)to, (unsigned long)to + n - rc);
return rc;