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authorLinus Torvalds <torvalds@g5.osdl.org>2006-04-23 12:44:10 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-23 12:44:10 -0400
commit6b426e785cb81e53dc2fc4dcf997661472b470ef (patch)
tree3dbde895f120e78f66b32ddd9c9cbe3d83a59637 /include/asm-parisc/io.h
parentcb6aef2879b769644b35cffe9844c81c63809c8e (diff)
parent223232de068593b40d267e340f24c017d31c018a (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: [PARISC] MAINTAINERS [PARISC] Make ioremap default to _nocache [PARISC] Add new entries to the syscall table [PARISC] Further work for multiple page sizes [PARISC] Fix up hil_kbd.c mismerge [PARISC] defconfig updates [PARISC] Document that we tolerate "Relaxed Ordering" [PARISC] Misc. janitorial work [PARISC] EISA regions must be mapped NO_CACHE [PARISC] OSS ad1889: Match register names with ALSA driver
Diffstat (limited to 'include/asm-parisc/io.h')
-rw-r--r--include/asm-parisc/io.h17
1 files changed, 5 insertions, 12 deletions
diff --git a/include/asm-parisc/io.h b/include/asm-parisc/io.h
index 29da31194b91..244f6b8883f4 100644
--- a/include/asm-parisc/io.h
+++ b/include/asm-parisc/io.h
@@ -126,24 +126,17 @@ static inline void gsc_writeq(unsigned long long val, unsigned long addr)
126 126
127extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsigned long flags); 127extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
128 128
129extern inline void __iomem * ioremap(unsigned long offset, unsigned long size) 129/* Most machines react poorly to I/O-space being cacheable... Instead let's
130{ 130 * define ioremap() in terms of ioremap_nocache().
131 return __ioremap(offset, size, 0);
132}
133
134/*
135 * This one maps high address device memory and turns off caching for that area.
136 * it's useful if some control registers are in such an area and write combining
137 * or read caching is not desirable:
138 */ 131 */
139extern inline void * ioremap_nocache(unsigned long offset, unsigned long size) 132extern inline void __iomem * ioremap(unsigned long offset, unsigned long size)
140{ 133{
141 return __ioremap(offset, size, _PAGE_NO_CACHE /* _PAGE_PCD */); 134 return __ioremap(offset, size, _PAGE_NO_CACHE);
142} 135}
136#define ioremap_nocache(off, sz) ioremap((off), (sz))
143 137
144extern void iounmap(void __iomem *addr); 138extern void iounmap(void __iomem *addr);
145 139
146
147static inline unsigned char __raw_readb(const volatile void __iomem *addr) 140static inline unsigned char __raw_readb(const volatile void __iomem *addr)
148{ 141{
149 return (*(volatile unsigned char __force *) (addr)); 142 return (*(volatile unsigned char __force *) (addr));