summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/include/asm/cache.h
diff options
context:
space:
mode:
authorStephen Rothwell <sfr@canb.auug.org.au>2008-08-01 15:20:30 +1000
committerPaul Mackerras <paulus@samba.org>2008-08-04 12:02:00 +1000
commitb8b572e1015f81b4e748417be2629dfe51ab99f9 (patch)
tree7df58667d5ed71d6c8f8f4ce40ca16b6fb776d0b /arch/powerpc/include/asm/cache.h
parent2b12a4c524812fb3f6ee590a02e65b95c8c32229 (diff)
powerpc: Move include files to arch/powerpc/include/asm
from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/include/asm/cache.h')
-rw-r--r--arch/powerpc/include/asm/cache.h45
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 */