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outercache.h
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1 /*
2  * arch/arm/include/asm/outercache.h
3  *
4  * Copyright (C) 2010 ARM Ltd.
5  * Written by Catalin Marinas <[email protected]>
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 
24 #include <linux/types.h>
25 
27  void (*inv_range)(unsigned long, unsigned long);
28  void (*clean_range)(unsigned long, unsigned long);
29  void (*flush_range)(unsigned long, unsigned long);
33 #ifdef CONFIG_OUTER_CACHE_SYNC
34  void (*sync)(void);
35 #endif
36  void (*set_debug)(unsigned long);
38 };
39 
40 #ifdef CONFIG_OUTER_CACHE
41 
42 extern struct outer_cache_fns outer_cache;
43 
44 static inline void outer_inv_range(phys_addr_t start, phys_addr_t end)
45 {
46  if (outer_cache.inv_range)
47  outer_cache.inv_range(start, end);
48 }
49 static inline void outer_clean_range(phys_addr_t start, phys_addr_t end)
50 {
51  if (outer_cache.clean_range)
52  outer_cache.clean_range(start, end);
53 }
54 static inline void outer_flush_range(phys_addr_t start, phys_addr_t end)
55 {
56  if (outer_cache.flush_range)
57  outer_cache.flush_range(start, end);
58 }
59 
60 static inline void outer_flush_all(void)
61 {
62  if (outer_cache.flush_all)
63  outer_cache.flush_all();
64 }
65 
66 static inline void outer_inv_all(void)
67 {
68  if (outer_cache.inv_all)
69  outer_cache.inv_all();
70 }
71 
72 static inline void outer_disable(void)
73 {
74  if (outer_cache.disable)
75  outer_cache.disable();
76 }
77 
78 static inline void outer_resume(void)
79 {
80  if (outer_cache.resume)
81  outer_cache.resume();
82 }
83 
84 #else
85 
86 static inline void outer_inv_range(phys_addr_t start, phys_addr_t end)
87 { }
88 static inline void outer_clean_range(phys_addr_t start, phys_addr_t end)
89 { }
90 static inline void outer_flush_range(phys_addr_t start, phys_addr_t end)
91 { }
92 static inline void outer_flush_all(void) { }
93 static inline void outer_inv_all(void) { }
94 static inline void outer_disable(void) { }
95 
96 #endif
97 
98 #ifdef CONFIG_OUTER_CACHE_SYNC
99 static inline void outer_sync(void)
100 {
101  if (outer_cache.sync)
102  outer_cache.sync();
103 }
104 #else
105 static inline void outer_sync(void)
106 { }
107 #endif
108 
109 #endif /* __ASM_OUTERCACHE_H */