319f551a0a
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>
76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
/*
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* arch/arm/include/asm/outercache.h
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*
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* Copyright (C) 2010 ARM Ltd.
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* Written by Catalin Marinas <catalin.marinas@arm.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __ASM_OUTERCACHE_H
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#define __ASM_OUTERCACHE_H
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struct outer_cache_fns {
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void (*inv_range)(unsigned long, unsigned long);
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void (*clean_range)(unsigned long, unsigned long);
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void (*flush_range)(unsigned long, unsigned long);
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#ifdef CONFIG_OUTER_CACHE_SYNC
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void (*sync)(void);
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#endif
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};
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#ifdef CONFIG_OUTER_CACHE
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extern struct outer_cache_fns outer_cache;
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static inline void outer_inv_range(unsigned long start, unsigned long end)
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{
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if (outer_cache.inv_range)
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outer_cache.inv_range(start, end);
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}
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static inline void outer_clean_range(unsigned long start, unsigned long end)
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{
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if (outer_cache.clean_range)
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outer_cache.clean_range(start, end);
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}
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static inline void outer_flush_range(unsigned long start, unsigned long end)
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{
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if (outer_cache.flush_range)
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outer_cache.flush_range(start, end);
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}
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#else
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static inline void outer_inv_range(unsigned long start, unsigned long end)
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{ }
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static inline void outer_clean_range(unsigned long start, unsigned long end)
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{ }
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static inline void outer_flush_range(unsigned long start, unsigned long end)
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{ }
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#endif
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#ifdef CONFIG_OUTER_CACHE_SYNC
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static inline void outer_sync(void)
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{
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if (outer_cache.sync)
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outer_cache.sync();
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}
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#else
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static inline void outer_sync(void)
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{ }
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#endif
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#endif /* __ASM_OUTERCACHE_H */
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