diff options
Diffstat (limited to 'arch/riscv/include/asm/tlbflush.h')
| -rw-r--r-- | arch/riscv/include/asm/tlbflush.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/riscv/include/asm/tlbflush.h b/arch/riscv/include/asm/tlbflush.h index 5ee4ae370b5e..7b9c24ebdf52 100644 --- a/arch/riscv/include/asm/tlbflush.h +++ b/arch/riscv/include/asm/tlbflush.h @@ -15,9 +15,12 @@ #ifndef _ASM_RISCV_TLBFLUSH_H #define _ASM_RISCV_TLBFLUSH_H -#ifdef CONFIG_MMU +#include <linux/mm_types.h> -/* Flush entire local TLB */ +/* + * Flush entire local TLB. 'sfence.vma' implicitly fences with the instruction + * cache as well, so a 'fence.i' is not necessary. + */ static inline void local_flush_tlb_all(void) { __asm__ __volatile__ ("sfence.vma" : : : "memory"); @@ -59,6 +62,4 @@ static inline void flush_tlb_kernel_range(unsigned long start, flush_tlb_all(); } -#endif /* CONFIG_MMU */ - #endif /* _ASM_RISCV_TLBFLUSH_H */ |