Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1#ifndef _ASM_POWERPC_CACHE_H
2#define _ASM_POWERPC_CACHE_H
3
4#ifdef __KERNEL__
5
6#include <linux/config.h>
7
8/* bytes per L1 cache line */
9#if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
10#define L1_CACHE_SHIFT 4
11#define MAX_COPY_PREFETCH 1
12#elif defined(CONFIG_PPC32)
13#define L1_CACHE_SHIFT 5
14#define MAX_COPY_PREFETCH 4
15#else /* CONFIG_PPC64 */
16#define L1_CACHE_SHIFT 7
17#endif
18
19#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
20
21#define SMP_CACHE_BYTES L1_CACHE_BYTES
22#define L1_CACHE_SHIFT_MAX 7 /* largest L1 which this arch supports */
23
24#if defined(__powerpc64__) && !defined(__ASSEMBLY__)
25struct ppc64_caches {
26 u32 dsize; /* L1 d-cache size */
27 u32 dline_size; /* L1 d-cache line size */
28 u32 log_dline_size;
29 u32 dlines_per_page;
30 u32 isize; /* L1 i-cache size */
31 u32 iline_size; /* L1 i-cache line size */
32 u32 log_iline_size;
33 u32 ilines_per_page;
34};
35
36extern struct ppc64_caches ppc64_caches;
37#endif /* __powerpc64__ && ! __ASSEMBLY__ */
38
39#endif /* __KERNEL__ */
40#endif /* _ASM_POWERPC_CACHE_H */