diff options
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/include/asm/cachectl.h | 7 | ||||
| -rw-r--r-- | arch/sh/kernel/sys_sh.c | 2 |
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/sh/include/asm/cachectl.h b/arch/sh/include/asm/cachectl.h index 305dd7082a6..6ffb4b7a212 100644 --- a/arch/sh/include/asm/cachectl.h +++ b/arch/sh/include/asm/cachectl.h @@ -9,4 +9,11 @@ #define CACHEFLUSH_I 0x4 +/* + * Options for cacheflush system call + */ +#define ICACHE CACHEFLUSH_I /* flush instruction cache */ +#define DCACHE CACHEFLUSH_D_PURGE /* writeback and flush data cache */ +#define BCACHE (ICACHE|DCACHE) /* flush both caches */ + #endif /* _SH_CACHECTL_H */ diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c index ec65dd8842b..8aa5d1ceaf1 100644 --- a/arch/sh/kernel/sys_sh.c +++ b/arch/sh/kernel/sys_sh.c @@ -186,7 +186,7 @@ asmlinkage int sys_cacheflush(unsigned long addr, unsigned long len, int op) { struct vm_area_struct *vma; - if ((op < 0) || (op > (CACHEFLUSH_D_PURGE|CACHEFLUSH_I))) + if ((op <= 0) || (op > (CACHEFLUSH_D_PURGE|CACHEFLUSH_I))) return -EINVAL; /* |