diff options
Diffstat (limited to 'arch/sh/include/asm/cache.h')
-rw-r--r-- | arch/sh/include/asm/cache.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h new file mode 100644 index 0000000000..2cfc0a7944 --- /dev/null +++ b/arch/sh/include/asm/cache.h @@ -0,0 +1,35 @@ +#ifndef __ASM_SH_CACHE_H +#define __ASM_SH_CACHE_H + +#if defined(CONFIG_SH4) || defined(CONFIG_SH4A) + +int cache_control(unsigned int cmd); + +#define L1_CACHE_BYTES 32 +struct __large_struct { unsigned long buf[100]; }; +#define __m(x) (*(struct __large_struct *)(x)) + +void dcache_wback_range(u32 start, u32 end) +{ + u32 v; + + start &= ~(L1_CACHE_BYTES - 1); + for (v = start; v < end; v += L1_CACHE_BYTES) { + asm volatile ("ocbwb %0" : /* no output */ + : "m" (__m(v))); + } +} + +void dcache_invalid_range(u32 start, u32 end) +{ + u32 v; + + start &= ~(L1_CACHE_BYTES - 1); + for (v = start; v < end; v += L1_CACHE_BYTES) { + asm volatile ("ocbi %0" : /* no output */ + : "m" (__m(v))); + } +} +#endif /* CONFIG_SH4 || CONFIG_SH4A */ + +#endif /* __ASM_SH_CACHE_H */ |