| Haavard Skinnemoen | 5f97f7f | 2006-09-25 23:32:13 -0700 | [diff] [blame] | 1 | #ifndef __ASM_AVR32_CACHE_H |
| 2 | #define __ASM_AVR32_CACHE_H |
| 3 | |
| 4 | #define L1_CACHE_SHIFT 5 |
| 5 | #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) |
| 6 | |
| Haavard Skinnemoen | 093d0fa | 2007-06-11 17:17:14 +0200 | [diff] [blame] | 7 | /* |
| 8 | * Memory returned by kmalloc() may be used for DMA, so we must make |
| 9 | * sure that all such allocations are cache aligned. Otherwise, |
| 10 | * unrelated code may cause parts of the buffer to be read into the |
| 11 | * cache before the transfer is done, causing old data to be seen by |
| 12 | * the CPU. |
| 13 | */ |
| FUJITA Tomonori | a6eb9fe | 2010-08-10 18:03:22 -0700 | [diff] [blame] | 14 | #define ARCH_DMA_MINALIGN L1_CACHE_BYTES |
| Haavard Skinnemoen | 093d0fa | 2007-06-11 17:17:14 +0200 | [diff] [blame] | 15 | |
| Haavard Skinnemoen | 5f97f7f | 2006-09-25 23:32:13 -0700 | [diff] [blame] | 16 | #ifndef __ASSEMBLER__ |
| 17 | struct cache_info { |
| 18 | unsigned int ways; |
| 19 | unsigned int sets; |
| 20 | unsigned int linesz; |
| 21 | }; |
| 22 | #endif /* __ASSEMBLER */ |
| 23 | |
| 24 | /* Cache operation constants */ |
| 25 | #define ICACHE_FLUSH 0x00 |
| 26 | #define ICACHE_INVALIDATE 0x01 |
| 27 | #define ICACHE_LOCK 0x02 |
| 28 | #define ICACHE_UNLOCK 0x03 |
| 29 | #define ICACHE_PREFETCH 0x04 |
| 30 | |
| 31 | #define DCACHE_FLUSH 0x08 |
| 32 | #define DCACHE_LOCK 0x09 |
| 33 | #define DCACHE_UNLOCK 0x0a |
| 34 | #define DCACHE_INVALIDATE 0x0b |
| 35 | #define DCACHE_CLEAN 0x0c |
| 36 | #define DCACHE_CLEAN_INVAL 0x0d |
| 37 | |
| 38 | #endif /* __ASM_AVR32_CACHE_H */ |