linux/arch/arm/include/asm/outercache.h
Catalin Marinas 319f551a0a ARM: 5994/1: ARM: Add outer_cache_fns.sync function pointer (2/4)
This patch introduces the outer_cache_fns.sync function pointer together
with the OUTER_CACHE_SYNC config option that can be used to drain the
write buffer of the outer cache.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-25 21:13:49 +00:00

76 lines
2.0 KiB
C

/*
* arch/arm/include/asm/outercache.h
*
* Copyright (C) 2010 ARM Ltd.
* Written by Catalin Marinas <catalin.marinas@arm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __ASM_OUTERCACHE_H
#define __ASM_OUTERCACHE_H
struct outer_cache_fns {
void (*inv_range)(unsigned long, unsigned long);
void (*clean_range)(unsigned long, unsigned long);
void (*flush_range)(unsigned long, unsigned long);
#ifdef CONFIG_OUTER_CACHE_SYNC
void (*sync)(void);
#endif
};
#ifdef CONFIG_OUTER_CACHE
extern struct outer_cache_fns outer_cache;
static inline void outer_inv_range(unsigned long start, unsigned long end)
{
if (outer_cache.inv_range)
outer_cache.inv_range(start, end);
}
static inline void outer_clean_range(unsigned long start, unsigned long end)
{
if (outer_cache.clean_range)
outer_cache.clean_range(start, end);
}
static inline void outer_flush_range(unsigned long start, unsigned long end)
{
if (outer_cache.flush_range)
outer_cache.flush_range(start, end);
}
#else
static inline void outer_inv_range(unsigned long start, unsigned long end)
{ }
static inline void outer_clean_range(unsigned long start, unsigned long end)
{ }
static inline void outer_flush_range(unsigned long start, unsigned long end)
{ }
#endif
#ifdef CONFIG_OUTER_CACHE_SYNC
static inline void outer_sync(void)
{
if (outer_cache.sync)
outer_cache.sync();
}
#else
static inline void outer_sync(void)
{ }
#endif
#endif /* __ASM_OUTERCACHE_H */