Subversion Repositories or1k

/*

 * 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 */