Viewing file:  cache.h (972 B) -rw-r--r--
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#ifndef __ASM_AVR32_CACHE_H
#define __ASM_AVR32_CACHE_H
#define L1_CACHE_SHIFT 5
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
/*
* Memory returned by kmalloc() may be used for DMA, so we must make
* sure that all such allocations are cache aligned. Otherwise,
* unrelated code may cause parts of the buffer to be read into the
* cache before the transfer is done, causing old data to be seen by
* the CPU.
*/
#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
#ifndef __ASSEMBLER__
struct cache_info {
unsigned int ways;
unsigned int sets;
unsigned int linesz;
};
#endif /* __ASSEMBLER */
/* Cache operation constants */
#define ICACHE_FLUSH 0x00
#define ICACHE_INVALIDATE 0x01
#define ICACHE_LOCK 0x02
#define ICACHE_UNLOCK 0x03
#define ICACHE_PREFETCH 0x04
#define DCACHE_FLUSH 0x08
#define DCACHE_LOCK 0x09
#define DCACHE_UNLOCK 0x0a
#define DCACHE_INVALIDATE 0x0b
#define DCACHE_CLEAN 0x0c
#define DCACHE_CLEAN_INVAL 0x0d
#endif /* __ASM_AVR32_CACHE_H */
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