Linux kernel mirror (for testing)
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linux
1/*
2 * arch/arm/include/asm/outercache.h
3 *
4 * Copyright (C) 2010 ARM Ltd.
5 * Written by Catalin Marinas <catalin.marinas@arm.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#ifndef __ASM_OUTERCACHE_H
22#define __ASM_OUTERCACHE_H
23
24struct outer_cache_fns {
25 void (*inv_range)(unsigned long, unsigned long);
26 void (*clean_range)(unsigned long, unsigned long);
27 void (*flush_range)(unsigned long, unsigned long);
28 void (*flush_all)(void);
29 void (*inv_all)(void);
30 void (*disable)(void);
31#ifdef CONFIG_OUTER_CACHE_SYNC
32 void (*sync)(void);
33#endif
34};
35
36#ifdef CONFIG_OUTER_CACHE
37
38extern struct outer_cache_fns outer_cache;
39
40static inline void outer_inv_range(unsigned long start, unsigned long end)
41{
42 if (outer_cache.inv_range)
43 outer_cache.inv_range(start, end);
44}
45static inline void outer_clean_range(unsigned long start, unsigned long end)
46{
47 if (outer_cache.clean_range)
48 outer_cache.clean_range(start, end);
49}
50static inline void outer_flush_range(unsigned long start, unsigned long end)
51{
52 if (outer_cache.flush_range)
53 outer_cache.flush_range(start, end);
54}
55
56static inline void outer_flush_all(void)
57{
58 if (outer_cache.flush_all)
59 outer_cache.flush_all();
60}
61
62static inline void outer_inv_all(void)
63{
64 if (outer_cache.inv_all)
65 outer_cache.inv_all();
66}
67
68static inline void outer_disable(void)
69{
70 if (outer_cache.disable)
71 outer_cache.disable();
72}
73
74#else
75
76static inline void outer_inv_range(unsigned long start, unsigned long end)
77{ }
78static inline void outer_clean_range(unsigned long start, unsigned long end)
79{ }
80static inline void outer_flush_range(unsigned long start, unsigned long end)
81{ }
82static inline void outer_flush_all(void) { }
83static inline void outer_inv_all(void) { }
84static inline void outer_disable(void) { }
85
86#endif
87
88#ifdef CONFIG_OUTER_CACHE_SYNC
89static inline void outer_sync(void)
90{
91 if (outer_cache.sync)
92 outer_cache.sync();
93}
94#else
95static inline void outer_sync(void)
96{ }
97#endif
98
99#endif /* __ASM_OUTERCACHE_H */