Merge branch 'linus' into x86/xen

1 files changed, 45 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
new file mode 100644
index 00000000000..81de6eb3455
--- /dev/null
+++ b/arch/powerpc/include/asm/cache.h
@@ -0,0 +1,45 @@
+#ifndef _ASM_POWERPC_CACHE_H
+#define _ASM_POWERPC_CACHE_H
+
+#ifdef __KERNEL__
+
+
+/* bytes per L1 cache line */
+#if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
+#define L1_CACHE_SHIFT		4
+#define MAX_COPY_PREFETCH	1
+#elif defined(CONFIG_PPC_E500MC)
+#define L1_CACHE_SHIFT		6
+#define MAX_COPY_PREFETCH	4
+#elif defined(CONFIG_PPC32)
+#define L1_CACHE_SHIFT		5
+#define MAX_COPY_PREFETCH	4
+#else /* CONFIG_PPC64 */
+#define L1_CACHE_SHIFT		7
+#endif
+
+#define	L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+
+#define	SMP_CACHE_BYTES		L1_CACHE_BYTES
+
+#if defined(__powerpc64__) && !defined(__ASSEMBLY__)
+struct ppc64_caches {
+	u32	dsize;			/* L1 d-cache size */
+	u32	dline_size;		/* L1 d-cache line size	*/
+	u32	log_dline_size;
+	u32	dlines_per_page;
+	u32	isize;			/* L1 i-cache size */
+	u32	iline_size;		/* L1 i-cache line size	*/
+	u32	log_iline_size;
+	u32	ilines_per_page;
+};
+
+extern struct ppc64_caches ppc64_caches;
+#endif /* __powerpc64__ && ! __ASSEMBLY__ */
+
+#if !defined(__ASSEMBLY__)
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+#endif
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_CACHE_H */