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Annotation of qemu/roms/openbios/include/arch/ia64/io.h, revision 1.1

1.1     ! root        1: #ifndef _ASM_IO_H
        !             2: #define _ASM_IO_H
        !             3: 
        !             4: extern unsigned long virt_offset;
        !             5: 
        !             6: #define phys_to_virt(phys) ((void *) ((unsigned long) (phys) - virt_offset))
        !             7: #define virt_to_phys(virt) ((unsigned long) (virt) + virt_offset)
        !             8: 
        !             9: #define __SLOW_DOWN_IO "outb %%al,$0x80;"
        !            10: static inline void slow_down_io(void)
        !            11: {
        !            12:        __asm__ __volatile__(
        !            13:                __SLOW_DOWN_IO
        !            14: #ifdef REALLY_SLOW_IO
        !            15:                __SLOW_DOWN_IO __SLOW_DOWN_IO __SLOW_DOWN_IO
        !            16: #endif
        !            17:                : : );
        !            18: }
        !            19: 
        !            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)); \
        !            23: } \
        !            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)); \
        !            27:        return value; \
        !            28: } \
        !            29: static inline void out##bwl##_p(unsigned type value, int port) { \
        !            30:        out##bwl(value, port); \
        !            31:        slow_down_io(); \
        !            32: } \
        !            33: static inline unsigned type in##bwl##_p(int port) { \
        !            34:        unsigned type value = in##bwl(port); \
        !            35:        slow_down_io(); \
        !            36:        return value; \
        !            37: } \
        !            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)); \
        !            40: } \
        !            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)); \
        !            43: }
        !            44: 
        !            45: #ifndef BOOTSTRAP
        !            46: BUILDIO(b,b,char)
        !            47: BUILDIO(w,w,short)
        !            48: BUILDIO(l,,int)
        !            49: #else
        !            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);
        !            58: #endif
        !            59: #endif

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