summaryrefslogtreecommitdiffstats
path: root/arch/sh/include/asm/cache.h
diff options
context:
space:
mode:
authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-08-07 10:55:03 +0200
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-08-07 10:55:03 +0200
commit4fb8af10d0fd09372d52966b76922b9e82bbc950 (patch)
treed240e4d40357583e3f3eb228dccf20122a5b31ed /arch/sh/include/asm/cache.h
parent[ARM] Add support for arch/arm/mach-*/include and arch/arm/plat-*/include (diff)
parentkbuild: a better way to generate cscope database change (diff)
downloadlinux-4fb8af10d0fd09372d52966b76922b9e82bbc950.tar.xz
linux-4fb8af10d0fd09372d52966b76922b9e82bbc950.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
Diffstat (limited to 'arch/sh/include/asm/cache.h')
-rw-r--r--arch/sh/include/asm/cache.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
new file mode 100644
index 000000000000..02df18ea9608
--- /dev/null
+++ b/arch/sh/include/asm/cache.h
@@ -0,0 +1,51 @@
+/* $Id: cache.h,v 1.6 2004/03/11 18:08:05 lethal Exp $
+ *
+ * include/asm-sh/cache.h
+ *
+ * Copyright 1999 (C) Niibe Yutaka
+ * Copyright 2002, 2003 (C) Paul Mundt
+ */
+#ifndef __ASM_SH_CACHE_H
+#define __ASM_SH_CACHE_H
+#ifdef __KERNEL__
+
+#include <linux/init.h>
+#include <cpu/cache.h>
+
+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
+#ifndef __ASSEMBLY__
+struct cache_info {
+ unsigned int ways; /* Number of cache ways */
+ unsigned int sets; /* Number of cache sets */
+ unsigned int linesz; /* Cache line size (bytes) */
+
+ unsigned int way_size; /* sets * line size */
+
+ /*
+ * way_incr is the address offset for accessing the next way
+ * in memory mapped cache array ops.
+ */
+ unsigned int way_incr;
+ unsigned int entry_shift;
+ unsigned int entry_mask;
+
+ /*
+ * Compute a mask which selects the address bits which overlap between
+ * 1. those used to select the cache set during indexing
+ * 2. those in the physical page number.
+ */
+ unsigned int alias_mask;
+
+ unsigned int n_aliases; /* Number of aliases */
+
+ unsigned long flags;
+};
+
+int __init detect_cpu_and_cache_system(void);
+
+#endif /* __ASSEMBLY__ */
+#endif /* __KERNEL__ */
+#endif /* __ASM_SH_CACHE_H */