Contributors: 3
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Robin Murphy |
126 |
91.30% |
1 |
33.33% |
| Pavel Tatashin |
10 |
7.25% |
1 |
33.33% |
| Thomas Gleixner |
2 |
1.45% |
1 |
33.33% |
| Total |
138 |
|
3 |
|
// 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);
__clean_dcache_area_pop(dst, cnt);
}
EXPORT_SYMBOL_GPL(memcpy_flushcache);
void memcpy_page_flushcache(char *to, struct page *page, size_t offset,
size_t len)
{
memcpy_flushcache(to, page_address(page) + offset, len);
}
unsigned long __copy_user_flushcache(void *to, const void __user *from,
unsigned long n)
{
unsigned long rc;
uaccess_enable_not_uao();
rc = __arch_copy_from_user(to, from, n);
uaccess_disable_not_uao();
/* See above */
__clean_dcache_area_pop(to, n - rc);
return rc;
}