diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-11-10 09:10:44 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-11-10 09:10:44 +0100 |
commit | a5a64498c194c82ecad3a2d67cff6231cda8d3dd (patch) | |
tree | 723d5d81419f9960b8d30ed9a2ece8a58d6c4328 /arch/um/include/asm/io.h | |
parent | bb93d802ae5c1949977cc6da247b218240677f11 (diff) | |
parent | f7160c7573615ec82c691e294cf80d920b5d588d (diff) |
Merge commit 'v2.6.28-rc4' into timers/rtc
Conflicts:
drivers/rtc/rtc-cmos.c
Diffstat (limited to 'arch/um/include/asm/io.h')
-rw-r--r-- | arch/um/include/asm/io.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/um/include/asm/io.h b/arch/um/include/asm/io.h new file mode 100644 index 000000000000..44e8b8c772ae --- /dev/null +++ b/arch/um/include/asm/io.h @@ -0,0 +1,57 @@ +#ifndef __UM_IO_H +#define __UM_IO_H + +#include "asm/page.h" + +#define IO_SPACE_LIMIT 0xdeadbeef /* Sure hope nothing uses this */ + +static inline int inb(unsigned long i) { return(0); } +static inline void outb(char c, unsigned long i) { } + +/* + * Change virtual addresses to physical addresses and vv. + * These are pretty trivial + */ +static inline unsigned long virt_to_phys(volatile void * address) +{ + return __pa((void *) address); +} + +static inline void * phys_to_virt(unsigned long address) +{ + return __va(address); +} + +/* + * Convert a physical pointer to a virtual kernel pointer for /dev/mem + * access + */ +#define xlate_dev_mem_ptr(p) __va(p) + +/* + * Convert a virtual cached pointer to an uncached pointer + */ +#define xlate_dev_kmem_ptr(p) p + +static inline void writeb(unsigned char b, volatile void __iomem *addr) +{ + *(volatile unsigned char __force *) addr = b; +} +static inline void writew(unsigned short b, volatile void __iomem *addr) +{ + *(volatile unsigned short __force *) addr = b; +} +static inline void writel(unsigned int b, volatile void __iomem *addr) +{ + *(volatile unsigned int __force *) addr = b; +} +static inline void writeq(unsigned int b, volatile void __iomem *addr) +{ + *(volatile unsigned long long __force *) addr = b; +} +#define __raw_writeb writeb +#define __raw_writew writew +#define __raw_writel writel +#define __raw_writeq writeq + +#endif |