aboutsummaryrefslogtreecommitdiffstats
path: root/arch/mn10300/include/asm/cacheflush.h
blob: faed90240dedd1f3f88ba34105a268efa1dd6fd2 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
/* MN10300 Cache flushing
 *
 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */
#ifndef _ASM_CACHEFLUSH_H
#define _ASM_CACHEFLUSH_H

#ifndef __ASSEMBLY__

/* Keep includes the same across arches.  */
#include <linux/mm.h>

/*
 * Primitive routines
 */
#ifdef CONFIG_MN10300_CACHE_ENABLED
extern void mn10300_local_icache_inv(void);
extern void mn10300_local_icache_inv_page(unsigned long start);
extern void mn10300_local_icache_inv_range(unsigned long start, unsigned long end);
extern void mn10300_local_icache_inv_range2(unsigned long start, unsigned long size);
extern void mn10300_local_dcache_inv(void);
extern void mn10300_local_dcache_inv_page(unsigned long start);
extern void mn10300_local_dcache_inv_range(unsigned long start, unsigned long end);
extern void mn10300_local_dcache_inv_range2(unsigned long start, unsigned long size);
extern void mn10300_icache_inv(void);
extern void mn10300_icache_inv_page(unsigned long start);
extern void mn10300_icache_inv_range(unsigned long start, unsigned long end);
extern void mn10300_icache_inv_range2(unsigned long start, unsigned long size);
extern void mn10300_dcache_inv(void);
extern void mn10300_dcache_inv_page(unsigned long start);
extern void mn10300_dcache_inv_range(unsigned long start, unsigned long end);
extern void mn10300_dcache_inv_range2(unsigned long start, unsigned long size);
#ifdef CONFIG_MN10300_CACHE_WBACK
extern void mn10300_local_dcache_flush(void);
extern void mn10300_local_dcache_flush_page(unsigned long start);
extern void mn10300_local_dcache_flush_range(unsigned long start, unsigned long end);
extern void mn10300_local_dcache_flush_range2(unsigned long start, unsigned long size);
extern void mn10300_local_dcache_flush_inv(void);
extern void mn10300_local_dcache_flush_inv_page(unsigned long start);
extern void mn10300_local_dcache_flush_inv_range(unsigned long start, unsigned long end);
extern void mn10300_local_dcache_flush_inv_range2(unsigned long start, unsigned long size);
extern void mn10300_dcache_flush(void);
extern void mn10300_dcache_flush_page(unsigned long start);
extern void mn10300_dcache_flush_range(unsigned long start, unsigned long end);
extern void mn10300_dcache_flush_range2(unsigned long start, unsigned long size);
extern void mn10300_dcache_flush_inv(void);
extern void mn10300_dcache_flush_inv_page(unsigned long start);
extern void mn10300_dcache_flush_inv_range(unsigned long start, unsigned long end);
extern void mn10300_dcache_flush_inv_range2(unsigned long start, unsigned long size);
#else
#define mn10300_local_dcache_flush()			do {} while (0)
#define mn10300_local_dcache_flush_page(start)		do {} while (0)
#define mn10300_local_dcache_flush_range(start, end)	do {} while (0)
#define mn10300_local_dcache_flush_range2(start, size)	do {} while (0)
#define mn10300_local_dcache_flush_inv() \
		mn10300_local_dcache_inv()
#define mn10300_local_dcache_flush_inv_page(start) \
		mn10300_local_dcache_inv_page(start)
#define mn10300_local_dcache_flush_inv_range(start, end) \
		mn10300_local_dcache_inv_range(start, end)
#define mn10300_local_dcache_flush_inv_range2(start, size) \
		mn10300_local_dcache_inv_range2(start, size)
#define mn10300_dcache_flush()				do {} while (0)
#define mn10300_dcache_flush_page(start)		do {} while (0)
#define mn10300_dcache_flush_range(start, end)		do {} while (0)
#define mn10300_dcache_flush_range2(start, size)	do {} while (0)
#define mn10300_dcache_flush_inv()			mn10300_dcache_inv()
#define mn10300_dcache_flush_inv_page(start) \
	mn10300_dcache_inv_page((start))
#define mn10300_dcache_flush_inv_range(start, end) \
	mn10300_dcache_inv_range((start), (end))
#define mn10300_dcache_flush_inv_range2(start, size) \
	mn10300_dcache_inv_range2((start), (size))
#endif /* CONFIG_MN10300_CACHE_WBACK */
#else
#define mn10300_local_icache_inv()			do {} while (0)
#define mn10300_local_icache_inv_page(start)		do {} while (0)
#define mn10300_local_icache_inv_range(start, end)	do {} while (0)
#define mn10300_local_icache_inv_range2(start, size)	do {} while (0)
#define mn10300_local_dcache_inv()			do {} while (0)
#define mn10300_local_dcache_inv_page(start)		do {} while (0)
#define mn10300_local_dcache_inv_range(start, end)	do {} while (0)
#define mn10300_local_dcache_inv_range2(start, size)	do {} while (0)
#define mn10300_local_dcache_flush()			do {} while (0)
#define mn10300_local_dcache_flush_inv_page(start)	do {} while (0)
#define mn10300_local_dcache_flush_inv()		do {} while (0)
#define mn10300_local_dcache_flush_inv_range(start, end)do {} while (0)
#define mn10300_local_dcache_flush_inv_range2(start, size) do {} while (0)
#define mn10300_local_dcache_flush_page(start)		do {} while (0)
#define mn10300_local_dcache_flush_range(start, end)	do {} while (0)
#define mn10300_local_dcache_flush_range2(start, size)	do {} while (0)
#define mn10300_icache_inv()				do {} while (0)
#define mn10300_icache_inv_page(start)			do {} while (0)
#define mn10300_icache_inv_range(start, end)		do {} while (0)
#define mn10300_icache_inv_range2(start, size)		do {} while (0)
#define mn10300_dcache_inv()				do {} while (0)
#define mn10300_dcache_inv_page(start)			do {} while (0)
#define mn10300_dcache_inv_range(start, end)		do {} while (0)
#define mn10300_dcache_inv_range2(start, size)		do {} while (0)
#define mn10300_dcache_flush()				do {} while (0)
#define mn10300_dcache_flush_inv_page(start)		do {} while (0)
#define mn10300_dcache_flush_inv()			do {} while (0)
#define mn10300_dcache_flush_inv_range(start, end)	do {} while (0)
#define mn10300_dcache_flush_inv_range2(start, size)	do {} while (0)
#define mn10300_dcache_flush_page(start)		do {} while (0)
#define mn10300_dcache_flush_range(start, end)		do {} while (0)
#define mn10300_dcache_flush_range2(start, size)	do {} while (0)
#endif /* CONFIG_MN10300_CACHE_ENABLED */

/*
 * Virtually-indexed cache management (our cache is physically indexed)
 */
#define flush_cache_all()			do {} while (0)
#define flush_cache_mm(mm)			do {} while (0)
#define flush_cache_dup_mm(mm)			do {} while (0)
#define flush_cache_range(mm, start, end)	do {} while (0)
#define flush_cache_page(vma, vmaddr, pfn)	do {} while (0)
#define flush_cache_vmap(start, end)		do {} while (0)
#define flush_cache_vunmap(start, end)		do {} while (0)
#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
#define flush_dcache_page(page)			do {} while (0)
#define flush_dcache_mmap_lock(mapping)		do {} while (0)
#define flush_dcache_mmap_unlock(mapping)	do {} while (0)

/*
 * Physically-indexed cache management
 */
#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE)
extern void flush_icache_page(struct vm_area_struct *vma, struct page *page);
extern void flush_icache_range(unsigned long start, unsigned long end);
#elif defined(CONFIG_MN10300_CACHE_INV_ICACHE)
static inline void flush_icache_page(struct vm_area_struct *vma,
				     struct page *page)
{
	mn10300_icache_inv_page(page_to_phys(page));
}
extern void flush_icache_range(unsigned long start, unsigned long end);
#else
#define flush_icache_range(start, end)		do {} while (0)
#define flush_icache_page(vma, pg)		do {} while (0)
#endif


#define flush_icache_user_range(vma, pg, adr, len) \
	flush_icache_range(adr, adr + len)

#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
	do {					\
		memcpy(dst, src, len);		\
		flush_icache_page(vma, page);	\
	} while (0)

#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
	memcpy(dst, src, len)

/*
 * Internal debugging function
 */
#ifdef CONFIG_DEBUG_PAGEALLOC
extern void kernel_map_pages(struct page *page, int numpages, int enable);
#endif

#endif /* __ASSEMBLY__ */

#endif /* _ASM_CACHEFLUSH_H */