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  • only in /asuswrt-rt-n18u-9.0.0.4.380.2695/release/src-rt-6.x.4708/linux/linux-2.6.36/arch/powerpc/include/asm/
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_PPC_E500MC)
12#define L1_CACHE_SHIFT		6
13#define MAX_COPY_PREFETCH	4
14#elif defined(CONFIG_PPC32)
15#define MAX_COPY_PREFETCH	4
16#if defined(CONFIG_PPC_47x)
17#define L1_CACHE_SHIFT		7
18#else
19#define L1_CACHE_SHIFT		5
20#endif
21#else /* CONFIG_PPC64 */
22#define L1_CACHE_SHIFT		7
23#endif
24
25#define	L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
26
27#define	SMP_CACHE_BYTES		L1_CACHE_BYTES
28
29#if defined(__powerpc64__) && !defined(__ASSEMBLY__)
30struct ppc64_caches {
31	u32	dsize;			/* L1 d-cache size */
32	u32	dline_size;		/* L1 d-cache line size	*/
33	u32	log_dline_size;
34	u32	dlines_per_page;
35	u32	isize;			/* L1 i-cache size */
36	u32	iline_size;		/* L1 i-cache line size	*/
37	u32	log_iline_size;
38	u32	ilines_per_page;
39};
40
41extern struct ppc64_caches ppc64_caches;
42#endif /* __powerpc64__ && ! __ASSEMBLY__ */
43
44#if !defined(__ASSEMBLY__)
45#define __read_mostly __attribute__((__section__(".data..read_mostly")))
46#endif
47
48#endif /* __KERNEL__ */
49#endif /* _ASM_POWERPC_CACHE_H */
50