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 
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  */
14 #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
15 
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 */
39