flush_icache.S

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2017 SiFive
 4 */
 5
 6#include <linux/linkage.h>
 7#include <asm/unistd.h>
 8
 9	.text
10/* int __vdso_flush_icache(void *start, void *end, unsigned long flags); */
11SYM_FUNC_START(__vdso_flush_icache)
12	.cfi_startproc
13#ifdef CONFIG_SMP
14	li a7, __NR_riscv_flush_icache
15	ecall
16#else
17	fence.i
18	li a0, 0
19#endif
20	ret
21	.cfi_endproc
22SYM_FUNC_END(__vdso_flush_icache)