| Nobuhiro Iwamatsu | e92c9518 | 2008-03-12 12:15:29 +0900 | [diff] [blame^] | 1 | #ifndef __ASM_SH_CACHE_H |
| 2 | #define __ASM_SH_CACHE_H |
| 3 | |
| 4 | #if defined(CONFIG_SH4) || defined(CONFIG_SH4A) |
| 5 | |
| 6 | #define L1_CACHE_BYTES 32 |
| 7 | struct __large_struct { unsigned long buf[100]; }; |
| 8 | #define __m(x) (*(struct __large_struct *)(x)) |
| 9 | |
| 10 | void dcache_wback_range(u32 start, u32 end) |
| 11 | { |
| 12 | u32 v; |
| 13 | |
| 14 | start &= ~(L1_CACHE_BYTES-1); |
| 15 | for (v = start; v < end; v+=L1_CACHE_BYTES) { |
| 16 | asm volatile("ocbwb %0" |
| 17 | : /* no output */ |
| 18 | : "m" (__m(v))); |
| 19 | } |
| 20 | } |
| 21 | |
| 22 | void dcache_invalid_range(u32 start, u32 end) |
| 23 | { |
| 24 | u32 v; |
| 25 | |
| 26 | start &= ~(L1_CACHE_BYTES-1); |
| 27 | for (v = start; v < end; v+=L1_CACHE_BYTES) { |
| 28 | asm volatile("ocbi %0" |
| 29 | : /* no output */ |
| 30 | : "m" (__m(v))); |
| 31 | } |
| 32 | } |
| 33 | #endif /* CONFIG_SH4 || CONFIG_SH4A */ |
| 34 | |
| 35 | #endif /* __ASM_SH_CACHE_H */ |