projects/linux·blob v2.6.21 · refs

38 lines · 914 B

1#ifndef _ASM_POWERPC_CACHE_H
2#define _ASM_POWERPC_CACHE_H
3
4#ifdef __KERNEL__
5
6
7/* bytes per L1 cache line */
8#if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
9#define L1_CACHE_SHIFT 4
10#define MAX_COPY_PREFETCH 1
11#elif defined(CONFIG_PPC32)
12#define L1_CACHE_SHIFT 5
13#define MAX_COPY_PREFETCH 4
14#else /* CONFIG_PPC64 */
15#define L1_CACHE_SHIFT 7
16#endif
17
18#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
19
20#define SMP_CACHE_BYTES L1_CACHE_BYTES
21
22#if defined(__powerpc64__) && !defined(__ASSEMBLY__)
23struct ppc64_caches {
24 u32 dsize; /* L1 d-cache size */
25 u32 dline_size; /* L1 d-cache line size */
26 u32 log_dline_size;
27 u32 dlines_per_page;
28 u32 isize; /* L1 i-cache size */
29 u32 iline_size; /* L1 i-cache line size */
30 u32 log_iline_size;
31 u32 ilines_per_page;
32};
33
34extern struct ppc64_caches ppc64_caches;
35#endif /* __powerpc64__ && ! __ASSEMBLY__ */
36
37#endif /* __KERNEL__ */
38#endif /* _ASM_POWERPC_CACHE_H */