diff options
author | Philippe De Muyter <phdm@macqel.be> | 2010-10-27 08:57:48 -0400 |
---|---|---|
committer | Greg Ungerer <gerg@uclinux.org> | 2011-01-05 00:19:17 -0500 |
commit | b3d75b09bf8998fd302ba339eebbc768a110741b (patch) | |
tree | c3273077768dcab76056c4e971f92dff5b5e72ae | |
parent | 5291fa98565a2f4d27ec59380e8497eba2af948d (diff) |
m68knommu: Move __flush_cache_all definition for m54xx in m54xxacr.h
__flush_cache_all for m54xx is intrinsically related to the bit
definitions in m54xxacr.h. Move it there from cacheflush_no.h,
for easier maintenance.
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
-rw-r--r-- | arch/m68k/include/asm/cacheflush_no.h | 28 | ||||
-rw-r--r-- | arch/m68k/include/asm/m54xxacr.h | 31 |
2 files changed, 36 insertions, 23 deletions
diff --git a/arch/m68k/include/asm/cacheflush_no.h b/arch/m68k/include/asm/cacheflush_no.h index 7085bd51668b..8fda331f8a83 100644 --- a/arch/m68k/include/asm/cacheflush_no.h +++ b/arch/m68k/include/asm/cacheflush_no.h | |||
@@ -5,6 +5,9 @@ | |||
5 | * (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com> | 5 | * (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com> |
6 | */ | 6 | */ |
7 | #include <linux/mm.h> | 7 | #include <linux/mm.h> |
8 | #if defined(CONFIG_M5407) || defined(CONFIG_M548x) | ||
9 | #include <asm/m54xxacr.h> | ||
10 | #endif | ||
8 | 11 | ||
9 | #define flush_cache_all() __flush_cache_all() | 12 | #define flush_cache_all() __flush_cache_all() |
10 | #define flush_cache_mm(mm) do { } while (0) | 13 | #define flush_cache_mm(mm) do { } while (0) |
@@ -27,31 +30,9 @@ | |||
27 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ | 30 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ |
28 | memcpy(dst, src, len) | 31 | memcpy(dst, src, len) |
29 | 32 | ||
33 | #ifndef __flush_cache_all | ||
30 | static inline void __flush_cache_all(void) | 34 | static inline void __flush_cache_all(void) |
31 | { | 35 | { |
32 | #if defined(CONFIG_M5407) || defined(CONFIG_M548x) | ||
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) | 36 | #if defined(CONFIG_M523x) || defined(CONFIG_M527x) |
56 | __asm__ __volatile__ ( | 37 | __asm__ __volatile__ ( |
57 | "movel #0x81400100, %%d0\n\t" | 38 | "movel #0x81400100, %%d0\n\t" |
@@ -88,5 +69,6 @@ static inline void __flush_cache_all(void) | |||
88 | : : : "d0" ); | 69 | : : : "d0" ); |
89 | #endif /* CONFIG_M532x */ | 70 | #endif /* CONFIG_M532x */ |
90 | } | 71 | } |
72 | #endif /* __flush_cache_all */ | ||
91 | 73 | ||
92 | #endif /* _M68KNOMMU_CACHEFLUSH_H */ | 74 | #endif /* _M68KNOMMU_CACHEFLUSH_H */ |
diff --git a/arch/m68k/include/asm/m54xxacr.h b/arch/m68k/include/asm/m54xxacr.h index 424d4a677e43..da713d22dd0f 100644 --- a/arch/m68k/include/asm/m54xxacr.h +++ b/arch/m68k/include/asm/m54xxacr.h | |||
@@ -40,4 +40,35 @@ | |||
40 | #define ACR_CM 0x00000060 /* Cache mode mask */ | 40 | #define ACR_CM 0x00000060 /* Cache mode mask */ |
41 | #define ACR_WPROTECT 0x00000004 /* Write protect */ | 41 | #define ACR_WPROTECT 0x00000004 /* Write protect */ |
42 | 42 | ||
43 | #ifndef __ASSEMBLY__ | ||
44 | |||
45 | static inline void __m54xx_flush_cache_all(void) | ||
46 | { | ||
47 | /* | ||
48 | * Use cpushl to push and invalidate all cache lines. | ||
49 | * Gas doesn't seem to know how to generate the ColdFire | ||
50 | * cpushl instruction... Oh well, bit stuff it for now. | ||
51 | */ | ||
52 | __asm__ __volatile__ ( | ||
53 | "nop\n\t" | ||
54 | "clrl %%d0\n\t" | ||
55 | "1:\n\t" | ||
56 | "movel %%d0,%%a0\n\t" | ||
57 | "2:\n\t" | ||
58 | ".word 0xf468\n\t" | ||
59 | "addl #0x10,%%a0\n\t" | ||
60 | "cmpl #0x00000800,%%a0\n\t" | ||
61 | "blt 2b\n\t" | ||
62 | "addql #1,%%d0\n\t" | ||
63 | "cmpil #4,%%d0\n\t" | ||
64 | "bne 1b\n\t" | ||
65 | "movel #0xb6088500,%%d0\n\t" | ||
66 | "movec %%d0,%%CACR\n\t" | ||
67 | : : : "d0", "a0" ); | ||
68 | } | ||
69 | |||
70 | #define __flush_cache_all() __m54xx_flush_cache_all() | ||
71 | |||
72 | #endif /* __ASSEMBLY__ */ | ||
73 | |||
43 | #endif /* m54xxacr_h */ | 74 | #endif /* m54xxacr_h */ |