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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-08-07 09:55:16 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-08-07 09:55:16 +0100 |
| commit | a1b81a84fff05dbfef45b7012c26e1fee9973e5d (patch) | |
| tree | 3d053e76542ad4d20bd83ad35c13eabff97003ab /arch/avr32/include/asm/cache.h | |
| parent | 4fb8af10d0fd09372d52966b76922b9e82bbc950 (diff) | |
| parent | 3663b736a5083b3bce74520b637f630f01f66a7f (diff) | |
| download | linux-a1b81a84fff05dbfef45b7012c26e1fee9973e5d.tar.gz linux-a1b81a84fff05dbfef45b7012c26e1fee9973e5d.tar.bz2 linux-a1b81a84fff05dbfef45b7012c26e1fee9973e5d.zip | |
Merge branch 'header-move' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
Diffstat (limited to 'arch/avr32/include/asm/cache.h')
| -rw-r--r-- | arch/avr32/include/asm/cache.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/avr32/include/asm/cache.h b/arch/avr32/include/asm/cache.h new file mode 100644 index 000000000000..d3cf35ab11ab --- /dev/null +++ b/arch/avr32/include/asm/cache.h @@ -0,0 +1,38 @@ +#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_KMALLOC_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 */ |