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| // SPDX-License-Identifier: GPL-2.0
| // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
|
| #include <linux/syscalls.h>
| #include <asm/page.h>
| #include <asm/cacheflush.h>
| #include <asm/cachectl.h>
|
| SYSCALL_DEFINE3(cacheflush,
| void __user *, addr,
| unsigned long, bytes,
| int, cache)
| {
| switch (cache) {
| case BCACHE:
| case DCACHE:
| dcache_wb_range((unsigned long)addr,
| (unsigned long)addr + bytes);
| if (cache != BCACHE)
| break;
| fallthrough;
| case ICACHE:
| flush_icache_mm_range(current->mm,
| (unsigned long)addr,
| (unsigned long)addr + bytes);
| break;
| default:
| return -EINVAL;
| }
|
| return 0;
| }
|
|
