2 * Copyright (C) 2015 Regents of the University of California
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation, version 2.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
14 #ifndef _ASM_RISCV_CACHEFLUSH_H
15 #define _ASM_RISCV_CACHEFLUSH_H
17 #include <asm-generic/cacheflush.h>
19 #undef flush_icache_range
20 #undef flush_icache_user_range
22 static inline void local_flush_icache_all(void)
24 asm volatile ("fence.i" ::: "memory");
29 #define flush_icache_range(start, end) local_flush_icache_all()
30 #define flush_icache_user_range(vma, pg, addr, len) local_flush_icache_all()
32 #else /* CONFIG_SMP */
34 #define flush_icache_range(start, end) sbi_remote_fence_i(0)
35 #define flush_icache_user_range(vma, pg, addr, len) sbi_remote_fence_i(0)
37 #endif /* CONFIG_SMP */
39 #endif /* _ASM_RISCV_CACHEFLUSH_H */