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Haavard Skinnemoen5f97f7f2006-09-25 23:32:13 -07001#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 Skinnemoen093d0faf2007-06-11 17:17:14 +02007/*
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 */
14#define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES
15
Haavard Skinnemoen5f97f7f2006-09-25 23:32:13 -070016#ifndef __ASSEMBLER__
17struct 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 */