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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-10-15 23:16:07 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-10-15 23:16:07 +0100
commit2502991560dc8244dbe10e48473d85722c1e2ec1 (patch)
tree63b1f3be2ed56ff06f1e8db709e4ce85d69c3add /arch/mips/include/asm/bcache.h
parent7e69a8c4d06b7ecb874f571e82b715a9f79bc3c4 (diff)
parenta9ff8f6462635c8d9f8d64b7b10ddcea8404d77b (diff)
Merge branch 'fixes' into for-linus
Conflicts: arch/arm/mach-versatile/core.c
Diffstat (limited to 'arch/mips/include/asm/bcache.h')
-rw-r--r--arch/mips/include/asm/bcache.h60
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/mips/include/asm/bcache.h b/arch/mips/include/asm/bcache.h
new file mode 100644
index 00000000000..0ba9d6ef76a
--- /dev/null
+++ b/arch/mips/include/asm/bcache.h
@@ -0,0 +1,60 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (c) 1997, 1999 by Ralf Baechle
+ * Copyright (c) 1999 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_BCACHE_H
+#define _ASM_BCACHE_H
+
+
+/* Some R4000 / R4400 / R4600 / R5000 machines may have a non-dma-coherent,
+ chipset implemented caches. On machines with other CPUs the CPU does the
+ cache thing itself. */
+struct bcache_ops {
+ void (*bc_enable)(void);
+ void (*bc_disable)(void);
+ void (*bc_wback_inv)(unsigned long page, unsigned long size);
+ void (*bc_inv)(unsigned long page, unsigned long size);
+};
+
+extern void indy_sc_init(void);
+
+#ifdef CONFIG_BOARD_SCACHE
+
+extern struct bcache_ops *bcops;
+
+static inline void bc_enable(void)
+{
+ bcops->bc_enable();
+}
+
+static inline void bc_disable(void)
+{
+ bcops->bc_disable();
+}
+
+static inline void bc_wback_inv(unsigned long page, unsigned long size)
+{
+ bcops->bc_wback_inv(page, size);
+}
+
+static inline void bc_inv(unsigned long page, unsigned long size)
+{
+ bcops->bc_inv(page, size);
+}
+
+#else /* !defined(CONFIG_BOARD_SCACHE) */
+
+/* Not R4000 / R4400 / R4600 / R5000. */
+
+#define bc_enable() do { } while (0)
+#define bc_disable() do { } while (0)
+#define bc_wback_inv(page, size) do { } while (0)
+#define bc_inv(page, size) do { } while (0)
+
+#endif /* !defined(CONFIG_BOARD_SCACHE) */
+
+#endif /* _ASM_BCACHE_H */