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
24 #include <linux/types.h>
25
26 struct outer_cache_fns {
27 void (*inv_range)(unsigned long, unsigned long);
28 void (*clean_range)(unsigned long, unsigned long);
29 void (*flush_range)(unsigned long, unsigned long);
30 void (*flush_all)(void);
31 void (*inv_all)(void);
32 void (*disable)(void);
33 #ifdef CONFIG_OUTER_CACHE_SYNC
34 void (*sync)(void);
35 #endif
36 void (*set_debug)(unsigned long);
37 void (*resume)(void);
38 };
39
40 #ifdef CONFIG_OUTER_CACHE
41
42 extern struct outer_cache_fns outer_cache;
43
outer_inv_range(phys_addr_t start,phys_addr_t end)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 }
outer_clean_range(phys_addr_t start,phys_addr_t end)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 }
outer_flush_range(phys_addr_t start,phys_addr_t end)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
outer_flush_all(void)60 static inline void outer_flush_all(void)
61 {
62 if (outer_cache.flush_all)
63 outer_cache.flush_all();
64 }
65
outer_inv_all(void)66 static inline void outer_inv_all(void)
67 {
68 if (outer_cache.inv_all)
69 outer_cache.inv_all();
70 }
71
outer_disable(void)72 static inline void outer_disable(void)
73 {
74 if (outer_cache.disable)
75 outer_cache.disable();
76 }
77
outer_resume(void)78 static inline void outer_resume(void)
79 {
80 if (outer_cache.resume)
81 outer_cache.resume();
82 }
83
84 #else
85
outer_inv_range(phys_addr_t start,phys_addr_t end)86 static inline void outer_inv_range(phys_addr_t start, phys_addr_t end)
87 { }
outer_clean_range(phys_addr_t start,phys_addr_t end)88 static inline void outer_clean_range(phys_addr_t start, phys_addr_t end)
89 { }
outer_flush_range(phys_addr_t start,phys_addr_t end)90 static inline void outer_flush_range(phys_addr_t start, phys_addr_t end)
91 { }
outer_flush_all(void)92 static inline void outer_flush_all(void) { }
outer_inv_all(void)93 static inline void outer_inv_all(void) { }
outer_disable(void)94 static inline void outer_disable(void) { }
95
96 #endif
97
98 #ifdef CONFIG_OUTER_CACHE_SYNC
outer_sync(void)99 static inline void outer_sync(void)
100 {
101 if (outer_cache.sync)
102 outer_cache.sync();
103 }
104 #else
outer_sync(void)105 static inline void outer_sync(void)
106 { }
107 #endif
108
109 #endif /* __ASM_OUTERCACHE_H */
110