3 * This file is subject to the terms and conditions of the GNU General Public
4 * License. See the file "COPYING" in the main directory of this archive
7 * Copyright (c) 1997, 1999 by Ralf Baechle
8 * Copyright (c) 1999 Silicon Graphics, Inc.
13 #include <linux/config.h>
15 #ifdef CONFIG_BOARD_SCACHE
17 /* Some R4000 / R4400 / R4600 / R5000 machines may have chipset implemented
18 caches. On machines with other CPUs the CPU does the cache thing itself. */
20 void (*bc_enable
)(void);
21 void (*bc_disable
)(void);
22 void (*bc_wback_inv
)(unsigned long page
, unsigned long size
);
23 void (*bc_inv
)(unsigned long page
, unsigned long size
);
26 extern void indy_sc_init(void);
27 extern void sni_pcimt_sc_init(void);
29 extern struct bcache_ops
*bcops
;
31 extern inline void bc_enable(void)
36 extern inline void bc_disable(void)
41 extern inline void bc_wback_inv(unsigned long page
, unsigned long size
)
43 bcops
->bc_wback_inv(page
, size
);
46 extern inline void bc_inv(unsigned long page
, unsigned long size
)
48 bcops
->bc_inv(page
, size
);
51 #else /* !defined(CONFIG_BOARD_SCACHE) */
53 /* Not R4000 / R4400 / R4600 / R5000. */
55 #define bc_enable() do { } while (0)
56 #define bc_disable() do { } while (0)
57 #define bc_wback_inv(page, size) do { } while (0)
58 #define bc_inv(page, size) do { } while (0)
60 #endif /* !defined(CONFIG_BOARD_SCACHE) */
62 #endif /* _ASM_BCACHE_H */