diff options
Diffstat (limited to 'arch/arm64/lib/uaccess_flushcache.c')
| -rw-r--r-- | arch/arm64/lib/uaccess_flushcache.c | 27 |
1 files changed, 6 insertions, 21 deletions
diff --git a/arch/arm64/lib/uaccess_flushcache.c b/arch/arm64/lib/uaccess_flushcache.c index b6ceafdb8b72..7510d1a23124 100644 --- a/arch/arm64/lib/uaccess_flushcache.c +++ b/arch/arm64/lib/uaccess_flushcache.c @@ -1,17 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2017 ARM Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/uaccess.h> @@ -26,22 +15,18 @@ void memcpy_flushcache(void *dst, const void *src, size_t cnt) * barrier to order the cache maintenance against the memcpy. */ memcpy(dst, src, cnt); - __clean_dcache_area_pop(dst, cnt); + dcache_clean_pop((unsigned long)dst, (unsigned long)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 = __arch_copy_from_user(to, from, n); + unsigned long rc; + + rc = raw_copy_from_user(to, from, n); /* See above */ - __clean_dcache_area_pop(to, n - rc); + dcache_clean_pop((unsigned long)to, (unsigned long)to + n - rc); return rc; } |