patch-2.3.48 linux/include/asm-mips64/bcache.h

• Lines: 63
• Date: Thu Feb 24 22:53:35 2000
• Orig file: v2.3.47/linux/include/asm-mips64/bcache.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.47/linux/include/asm-mips64/bcache.h linux/include/asm-mips64/bcache.h
@@ -0,0 +1,62 @@
+/* $Id: bcache.h,v 1.3 2000/01/21 22:34:07 ralf Exp $
+ *
+ * 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>
+
+#ifdef CONFIG_BOARD_SCACHE
+
+/* Some R4000 / R4400 / R4600 / R5000 machines may have 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);
+
+extern struct bcache_ops *bcops;
+
+extern inline void bc_enable(void)
+{
+	bcops->bc_enable();
+}
+
+extern inline void bc_disable(void)
+{
+	bcops->bc_disable();
+}
+
+extern inline void bc_wback_inv(unsigned long page, unsigned long size)
+{
+	bcops->bc_wback_inv(page, size);
+}
+
+extern 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 */