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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/powerpc/include/asm/cache.h
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#ifndef _ASM_POWERPC_CACHE_H

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#define _ASM_POWERPC_CACHE_H

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#ifdef __KERNEL__

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/* bytes per L1 cache line */

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#if defined(CONFIG_8xx) || defined(CONFIG_403GCX)

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#define L1_CACHE_SHIFT		4

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#define MAX_COPY_PREFETCH	1

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#elif defined(CONFIG_PPC_E500MC)

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#define L1_CACHE_SHIFT		6

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#define MAX_COPY_PREFETCH	4

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#elif defined(CONFIG_PPC32)

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#define MAX_COPY_PREFETCH	4

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#if defined(CONFIG_PPC_47x)

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#define L1_CACHE_SHIFT		7

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#else

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#define L1_CACHE_SHIFT		5

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#endif

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#else /* CONFIG_PPC64 */

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#define L1_CACHE_SHIFT		7

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#endif

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#define	L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)

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#define	SMP_CACHE_BYTES		L1_CACHE_BYTES

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#if defined(__powerpc64__) && !defined(__ASSEMBLY__)

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struct ppc64_caches {

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	u32	dsize;			/* L1 d-cache size */

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	u32	dline_size;		/* L1 d-cache line size	*/

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	u32	log_dline_size;

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	u32	dlines_per_page;

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	u32	isize;			/* L1 i-cache size */

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	u32	iline_size;		/* L1 i-cache line size	*/

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	u32	log_iline_size;

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	u32	ilines_per_page;

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};

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extern struct ppc64_caches ppc64_caches;

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#endif /* __powerpc64__ && ! __ASSEMBLY__ */

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#if !defined(__ASSEMBLY__)

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#define __read_mostly __attribute__((__section__(".data..read_mostly")))

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#endif

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#endif /* __KERNEL__ */

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#endif /* _ASM_POWERPC_CACHE_H */

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