diff options
author | Mark Salter <msalter@redhat.com> | 2014-01-23 18:53:56 -0500 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-23 19:36:54 -0500 |
commit | 083f7ba834c09ed9b3904bf2168c378c5550c970 (patch) | |
tree | f0a2ff124ff689f56954add4d2697e5b75f68163 /arch/sh/include | |
parent | 9494a1e8428ea8e60ae77b221b9d32a5edc21ef4 (diff) |
sh: use generic fixmap.h
Signed-off-by: Mark Salter <msalter@redhat.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sh/include')
-rw-r--r-- | arch/sh/include/asm/fixmap.h | 39 |
1 files changed, 2 insertions, 37 deletions
diff --git a/arch/sh/include/asm/fixmap.h b/arch/sh/include/asm/fixmap.h index cbe0186b6794..4daf91c3b725 100644 --- a/arch/sh/include/asm/fixmap.h +++ b/arch/sh/include/asm/fixmap.h | |||
@@ -79,13 +79,6 @@ extern void __set_fixmap(enum fixed_addresses idx, | |||
79 | unsigned long phys, pgprot_t flags); | 79 | unsigned long phys, pgprot_t flags); |
80 | extern void __clear_fixmap(enum fixed_addresses idx, pgprot_t flags); | 80 | extern void __clear_fixmap(enum fixed_addresses idx, pgprot_t flags); |
81 | 81 | ||
82 | #define set_fixmap(idx, phys) \ | ||
83 | __set_fixmap(idx, phys, PAGE_KERNEL) | ||
84 | /* | ||
85 | * Some hardware wants to get fixmapped without caching. | ||
86 | */ | ||
87 | #define set_fixmap_nocache(idx, phys) \ | ||
88 | __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE) | ||
89 | /* | 82 | /* |
90 | * used by vmalloc.c. | 83 | * used by vmalloc.c. |
91 | * | 84 | * |
@@ -101,36 +94,8 @@ extern void __clear_fixmap(enum fixed_addresses idx, pgprot_t flags); | |||
101 | #define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) | 94 | #define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) |
102 | #define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) | 95 | #define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) |
103 | 96 | ||
104 | #define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT)) | 97 | #define FIXMAP_PAGE_NOCACHE PAGE_KERNEL_NOCACHE |
105 | #define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT) | ||
106 | |||
107 | extern void __this_fixmap_does_not_exist(void); | ||
108 | |||
109 | /* | ||
110 | * 'index to address' translation. If anyone tries to use the idx | ||
111 | * directly without tranlation, we catch the bug with a NULL-deference | ||
112 | * kernel oops. Illegal ranges of incoming indices are caught too. | ||
113 | */ | ||
114 | static inline unsigned long fix_to_virt(const unsigned int idx) | ||
115 | { | ||
116 | /* | ||
117 | * this branch gets completely eliminated after inlining, | ||
118 | * except when someone tries to use fixaddr indices in an | ||
119 | * illegal way. (such as mixing up address types or using | ||
120 | * out-of-range indices). | ||
121 | * | ||
122 | * If it doesn't get removed, the linker will complain | ||
123 | * loudly with a reasonably clear error message.. | ||
124 | */ | ||
125 | if (idx >= __end_of_fixed_addresses) | ||
126 | __this_fixmap_does_not_exist(); | ||
127 | 98 | ||
128 | return __fix_to_virt(idx); | 99 | #include <asm-generic/fixmap.h> |
129 | } | ||
130 | 100 | ||
131 | static inline unsigned long virt_to_fix(const unsigned long vaddr) | ||
132 | { | ||
133 | BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START); | ||
134 | return __virt_to_fix(vaddr); | ||
135 | } | ||
136 | #endif | 101 | #endif |