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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-04 17:25:06 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-04 17:25:06 -0700 |
| commit | 2acb802b0c5485aedb46e23b2b45e49573454c09 (patch) | |
| tree | 82afbba3d073ce903cb737412b6eccdf8adab4b5 /arch/powerpc/include/asm/cache.h | |
| parent | d8f4b819c3a5b54a978c6fe5249a17cff490c4a1 (diff) | |
| parent | 9c4cb82515130c62224e23fdf7c13c8f6c59c614 (diff) | |
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
powerpc: Remove use of CONFIG_PPC_MERGE
powerpc: Force printing of 'total_memory' to unsigned long long
powerpc: Fix compiler warning in arch/powerpc/mm/mem.c
powerpc: Move include files to arch/powerpc/include/asm
Diffstat (limited to 'arch/powerpc/include/asm/cache.h')
| -rw-r--r-- | arch/powerpc/include/asm/cache.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h new file mode 100644 index 00000000000..81de6eb3455 --- /dev/null +++ b/arch/powerpc/include/asm/cache.h @@ -0,0 +1,45 @@ +#ifndef _ASM_POWERPC_CACHE_H +#define _ASM_POWERPC_CACHE_H + +#ifdef __KERNEL__ + + +/* bytes per L1 cache line */ +#if defined(CONFIG_8xx) || defined(CONFIG_403GCX) +#define L1_CACHE_SHIFT 4 +#define MAX_COPY_PREFETCH 1 +#elif defined(CONFIG_PPC_E500MC) +#define L1_CACHE_SHIFT 6 +#define MAX_COPY_PREFETCH 4 +#elif defined(CONFIG_PPC32) +#define L1_CACHE_SHIFT 5 +#define MAX_COPY_PREFETCH 4 +#else /* CONFIG_PPC64 */ +#define L1_CACHE_SHIFT 7 +#endif + +#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) + +#define SMP_CACHE_BYTES L1_CACHE_BYTES + +#if defined(__powerpc64__) && !defined(__ASSEMBLY__) +struct ppc64_caches { + u32 dsize; /* L1 d-cache size */ + u32 dline_size; /* L1 d-cache line size */ + u32 log_dline_size; + u32 dlines_per_page; + u32 isize; /* L1 i-cache size */ + u32 iline_size; /* L1 i-cache line size */ + u32 log_iline_size; + u32 ilines_per_page; +}; + +extern struct ppc64_caches ppc64_caches; +#endif /* __powerpc64__ && ! __ASSEMBLY__ */ + +#if !defined(__ASSEMBLY__) +#define __read_mostly __attribute__((__section__(".data.read_mostly"))) +#endif + +#endif /* __KERNEL__ */ +#endif /* _ASM_POWERPC_CACHE_H */ |