mirror of
https://github.com/torvalds/linux.git
synced 2024-11-17 17:41:44 +00:00
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/*
|
|
* 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);
|
|
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 */
|