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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _M68KNOMMU_CACHEFLUSH_H
2#define _M68KNOMMU_CACHEFLUSH_H
3
4/*
Greg Ungerer962d69e2005-09-13 11:14:08 +10005 * (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com>
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 */
7#include <linux/mm.h>
8
9#define flush_cache_all() __flush_cache_all()
10#define flush_cache_mm(mm) do { } while (0)
Ralf Baechleec8c0442006-12-12 17:14:57 +000011#define flush_cache_dup_mm(mm) do { } while (0)
Greg Ungerer962d69e2005-09-13 11:14:08 +100012#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()
Linus Torvalds1da177e2005-04-16 15:20:36 -070015#define flush_dcache_page(page) do { } while (0)
16#define flush_dcache_mmap_lock(mapping) do { } while (0)
17#define flush_dcache_mmap_unlock(mapping) do { } while (0)
18#define flush_icache_range(start,len) __flush_cache_all()
19#define flush_icache_page(vma,pg) do { } while (0)
20#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
Greg Ungerer962d69e2005-09-13 11:14:08 +100021#define flush_cache_vmap(start, end) do { } while (0)
22#define flush_cache_vunmap(start, end) do { } while (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -070023
24#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
25 memcpy(dst, src, len)
26#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
27 memcpy(dst, src, len)
28
Greg Ungerer3dead1a2005-11-07 14:09:50 +100029static inline void __flush_cache_all(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070030{
31#ifdef CONFIG_M5407
32 /*
33 * Use cpushl to push and invalidate all cache lines.
34 * Gas doesn't seem to know how to generate the ColdFire
35 * cpushl instruction... Oh well, bit stuff it for now.
36 */
37 __asm__ __volatile__ (
38 "nop\n\t"
39 "clrl %%d0\n\t"
40 "1:\n\t"
41 "movel %%d0,%%a0\n\t"
42 "2:\n\t"
43 ".word 0xf468\n\t"
44 "addl #0x10,%%a0\n\t"
45 "cmpl #0x00000800,%%a0\n\t"
46 "blt 2b\n\t"
47 "addql #1,%%d0\n\t"
48 "cmpil #4,%%d0\n\t"
49 "bne 1b\n\t"
50 "movel #0xb6088500,%%d0\n\t"
51 "movec %%d0,%%CACR\n\t"
52 : : : "d0", "a0" );
53#endif /* CONFIG_M5407 */
Greg Ungerer962d69e2005-09-13 11:14:08 +100054#if defined(CONFIG_M527x) || defined(CONFIG_M528x)
55 __asm__ __volatile__ (
56 "movel #0x81400100, %%d0\n\t"
57 "movec %%d0, %%CACR\n\t"
58 "nop\n\t"
59 : : : "d0" );
60#endif /* CONFIG_M527x || CONFIG_M528x */
Greg Ungerer1b1a9bd2006-06-26 11:40:44 +100061#if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || defined(CONFIG_M5272)
Linus Torvalds1da177e2005-04-16 15:20:36 -070062 __asm__ __volatile__ (
Greg Ungerer1b1a9bd2006-06-26 11:40:44 +100063 "movel #0x81000100, %%d0\n\t"
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 "movec %%d0, %%CACR\n\t"
65 "nop\n\t"
Linus Torvalds1da177e2005-04-16 15:20:36 -070066 : : : "d0" );
Greg Ungerer1b1a9bd2006-06-26 11:40:44 +100067#endif /* CONFIG_M5206 || CONFIG_M5206e || CONFIG_M5272 */
Greg Ungerer3dead1a2005-11-07 14:09:50 +100068#ifdef CONFIG_M5249
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 __asm__ __volatile__ (
Greg Ungerer962d69e2005-09-13 11:14:08 +100070 "movel #0xa1000200, %%d0\n\t"
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 "movec %%d0, %%CACR\n\t"
72 "nop\n\t"
73 : : : "d0" );
74#endif /* CONFIG_M5249 */
Greg Ungerer1b1a9bd2006-06-26 11:40:44 +100075#ifdef CONFIG_M532x
76 __asm__ __volatile__ (
77 "movel #0x81000200, %%d0\n\t"
78 "movec %%d0, %%CACR\n\t"
79 "nop\n\t"
80 : : : "d0" );
81#endif /* CONFIG_M532x */
Linus Torvalds1da177e2005-04-16 15:20:36 -070082}
83
84#endif /* _M68KNOMMU_CACHEFLUSH_H */