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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-mips/bcache.h
downloadop-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
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Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-mips/bcache.h')
-rw-r--r--include/asm-mips/bcache.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/include/asm-mips/bcache.h b/include/asm-mips/bcache.h
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--- /dev/null
+++ b/include/asm-mips/bcache.h
@@ -0,0 +1,62 @@
+/*
+ * 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
+
+#include <linux/config.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);
+extern void sni_pcimt_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 */
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