1 #ifndef _ASM_POWERPC_CACHE_H
2 #define _ASM_POWERPC_CACHE_H
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_PPC_E500MC)
12 #define L1_CACHE_SHIFT 6
13 #define MAX_COPY_PREFETCH 4
14 #elif defined(CONFIG_PPC32)
15 #define L1_CACHE_SHIFT 5
16 #define MAX_COPY_PREFETCH 4
17 #else /* CONFIG_PPC64 */
18 #define L1_CACHE_SHIFT 7
21 #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
23 #define SMP_CACHE_BYTES L1_CACHE_BYTES
25 #if defined(__powerpc64__) && !defined(__ASSEMBLY__)
27 u32 dsize; /* L1 d-cache size */
28 u32 dline_size; /* L1 d-cache line size */
31 u32 isize; /* L1 i-cache size */
32 u32 iline_size; /* L1 i-cache line size */
37 extern struct ppc64_caches ppc64_caches;
38 #endif /* __powerpc64__ && ! __ASSEMBLY__ */
40 #if !defined(__ASSEMBLY__)
41 #define __read_mostly __attribute__((__section__(".data.read_mostly")))
44 #endif /* __KERNEL__ */
45 #endif /* _ASM_POWERPC_CACHE_H */