4 extern unsigned long virt_offset;
6 #define phys_to_virt(phys) ((void *) ((unsigned long) (phys) - virt_offset))
7 #define virt_to_phys(virt) ((unsigned long) (virt) + virt_offset)
9 #define __SLOW_DOWN_IO "outb %%al,$0x80;"
10 static inline void slow_down_io(void)
15 __SLOW_DOWN_IO __SLOW_DOWN_IO __SLOW_DOWN_IO
20 #define BUILDIO(bwl,bw,type) \
21 static inline void out##bwl(unsigned type value, int port) { \
22 __asm__ __volatile__("out" #bwl " %" #bw "0, %w1" : : "a"(value), "Nd"(port)); \
24 static inline unsigned type in##bwl(int port) { \
25 unsigned type value; \
26 __asm__ __volatile__("in" #bwl " %w1, %" #bw "0" : "=a"(value) : "Nd"(port)); \
29 static inline void out##bwl##_p(unsigned type value, int port) { \
30 out##bwl(value, port); \
33 static inline unsigned type in##bwl##_p(int port) { \
34 unsigned type value = in##bwl(port); \
38 static inline void outs##bwl(int port, const void *addr, unsigned long count) { \
39 __asm__ __volatile__("rep; outs" #bwl : "+S"(addr), "+c"(count) : "d"(port)); \
41 static inline void ins##bwl(int port, void *addr, unsigned long count) { \
42 __asm__ __volatile__("rep; ins" #bwl : "+D"(addr), "+c"(count) : "d"(port)); \
50 extern u8 inb( u32 reg );
51 extern u16 inw( u32 reg );
52 extern u32 inl( u32 reg );
53 extern void insw( u32 reg, void *addr, unsigned long count );
54 extern void outb( u32 reg, u8 val );
55 extern void outw( u32 reg, u16 val );
56 extern void outl( u32 reg, u32 val );
57 extern void outsw( u32 reg, const void *addr, unsigned long count);