block: add helpers to run flush_dcache_page() against a bio and a request's pages
[linux-2.6.git] / arch / m68k / include / asm / cacheflush_no.h
1 #ifndef _M68KNOMMU_CACHEFLUSH_H
2 #define _M68KNOMMU_CACHEFLUSH_H
3
4 /*
5  * (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com>
6  */
7 #include <linux/mm.h>
8
9 #define flush_cache_all()                       __flush_cache_all()
10 #define flush_cache_mm(mm)                      do { } while (0)
11 #define flush_cache_dup_mm(mm)                  do { } while (0)
12 #define flush_cache_range(vma, start, end)      __flush_cache_all()
13 #define flush_cache_page(vma, vmaddr)           do { } while (0)
14 #define flush_dcache_range(start,len)           __flush_cache_all()
15 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
16 #define flush_dcache_page(page)                 do { } while (0)
17 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
18 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
19 #define flush_icache_range(start,len)           __flush_cache_all()
20 #define flush_icache_page(vma,pg)               do { } while (0)
21 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
22 #define flush_cache_vmap(start, end)            do { } while (0)
23 #define flush_cache_vunmap(start, end)          do { } while (0)
24
25 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
26         memcpy(dst, src, len)
27 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
28         memcpy(dst, src, len)
29
30 static inline void __flush_cache_all(void)
31 {
32 #ifdef CONFIG_M5407
33         /*
34          *      Use cpushl to push and invalidate all cache lines.
35          *      Gas doesn't seem to know how to generate the ColdFire
36          *      cpushl instruction... Oh well, bit stuff it for now.
37          */
38         __asm__ __volatile__ (
39                 "nop\n\t"
40                 "clrl   %%d0\n\t"
41                 "1:\n\t"
42                 "movel  %%d0,%%a0\n\t"
43                 "2:\n\t"
44                 ".word  0xf468\n\t"
45                 "addl   #0x10,%%a0\n\t"
46                 "cmpl   #0x00000800,%%a0\n\t"
47                 "blt    2b\n\t"
48                 "addql  #1,%%d0\n\t"
49                 "cmpil  #4,%%d0\n\t"
50                 "bne    1b\n\t"
51                 "movel  #0xb6088500,%%d0\n\t"
52                 "movec  %%d0,%%CACR\n\t"
53                 : : : "d0", "a0" );
54 #endif /* CONFIG_M5407 */
55 #if defined(CONFIG_M523x) || defined(CONFIG_M527x)
56         __asm__ __volatile__ (
57                 "movel  #0x81400100, %%d0\n\t"
58                 "movec  %%d0, %%CACR\n\t"
59                 "nop\n\t"
60                 : : : "d0" );
61 #endif /* CONFIG_M523x || CONFIG_M527x */
62 #if defined(CONFIG_M528x)
63         __asm__ __volatile__ (
64                 "movel  #0x81000200, %%d0\n\t"
65                 "movec  %%d0, %%CACR\n\t"
66                 "nop\n\t"
67                 : : : "d0" );
68 #endif /* CONFIG_M528x */
69 #if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || defined(CONFIG_M5272)
70         __asm__ __volatile__ (
71                 "movel  #0x81000100, %%d0\n\t"
72                 "movec  %%d0, %%CACR\n\t"
73                 "nop\n\t"
74                 : : : "d0" );
75 #endif /* CONFIG_M5206 || CONFIG_M5206e || CONFIG_M5272 */
76 #ifdef CONFIG_M5249
77         __asm__ __volatile__ (
78                 "movel  #0xa1000200, %%d0\n\t"
79                 "movec  %%d0, %%CACR\n\t"
80                 "nop\n\t"
81                 : : : "d0" );
82 #endif /* CONFIG_M5249 */
83 #ifdef CONFIG_M532x
84         __asm__ __volatile__ (
85                 "movel  #0x81000200, %%d0\n\t"
86                 "movec  %%d0, %%CACR\n\t"
87                 "nop\n\t"
88                 : : : "d0" );
89 #endif /* CONFIG_M532x */
90 }
91
92 #endif /* _M68KNOMMU_CACHEFLUSH_H */