/*
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/*
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* linux/include/asm-arm/io.h
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* linux/include/asm-arm/io.h
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*
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*
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* Copyright (C) 1996 Russell King
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* Copyright (C) 1996 Russell King
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*
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*
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* Modifications:
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* Modifications:
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* 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both
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* 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both
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* constant addresses and variable addresses.
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* constant addresses and variable addresses.
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* 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture
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* 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture
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* specific IO header files.
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* specific IO header files.
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*/
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*/
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#ifndef __ASM_ARM_IO_H
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#ifndef __ASM_ARM_IO_H
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#define __ASM_ARM_IO_H
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#define __ASM_ARM_IO_H
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#include <asm/hardware.h>
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#include <asm/hardware.h>
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#include <asm/arch/mmu.h>
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#include <asm/arch/mmu.h>
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#include <asm/arch/io.h>
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#include <asm/arch/io.h>
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/* unsigned long virt_to_phys(void *x) */
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/* unsigned long virt_to_phys(void *x) */
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#define virt_to_phys(x) (__virt_to_phys((unsigned long)(x)))
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#define virt_to_phys(x) (__virt_to_phys((unsigned long)(x)))
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/* void *phys_to_virt(unsigned long x) */
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/* void *phys_to_virt(unsigned long x) */
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#define phys_to_virt(x) ((void *)(__phys_to_virt((unsigned long)(x))))
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#define phys_to_virt(x) ((void *)(__phys_to_virt((unsigned long)(x))))
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/*
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/*
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* Virtual view <-> DMA view memory address translations
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* Virtual view <-> DMA view memory address translations
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* virt_to_bus: Used to translate the virtual address to an
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* virt_to_bus: Used to translate the virtual address to an
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* address suitable to be passed to set_dma_addr
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* address suitable to be passed to set_dma_addr
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* bus_to_virt: Used to convert an address for DMA operations
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* bus_to_virt: Used to convert an address for DMA operations
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* to an address that the kernel can use.
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* to an address that the kernel can use.
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*/
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*/
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#define virt_to_bus(x) (__virt_to_bus((unsigned long)(x)))
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#define virt_to_bus(x) (__virt_to_bus((unsigned long)(x)))
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#define bus_to_virt(x) ((void *)(__bus_to_virt(x)))
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#define bus_to_virt(x) ((void *)(__bus_to_virt(x)))
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/*
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/*
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* These macros actually build the multi-value IO function prototypes
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* These macros actually build the multi-value IO function prototypes
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*/
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*/
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#define __OUTS(s,i,x) extern void outs##s(unsigned int port, const void *from, int len);
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#define __OUTS(s,i,x) extern void outs##s(unsigned int port, const void *from, int len);
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#define __INS(s,i,x) extern void ins##s(unsigned int port, void *to, int len);
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#define __INS(s,i,x) extern void ins##s(unsigned int port, void *to, int len);
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#define __IO(s,i,x) \
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#define __IO(s,i,x) \
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__OUTS(s,i,x) \
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__OUTS(s,i,x) \
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__INS(s,i,x)
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__INS(s,i,x)
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__IO(b,"b",char)
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__IO(b,"b",char)
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__IO(w,"h",short)
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__IO(w,"h",short)
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__IO(l,"",long)
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__IO(l,"",long)
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/*
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/*
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* Note that due to the way __builtin_constant_t() works, you
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* Note that due to the way __builtin_constant_t() works, you
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* - can't use it inside an inline function (it will never be true)
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* - can't use it inside an inline function (it will never be true)
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* - you don't have to worry about side effects withing the __builtin..
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* - you don't have to worry about side effects withing the __builtin..
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*/
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*/
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#ifdef __outbc
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#ifdef __outbc
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#define outb(val,port) \
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#define outb(val,port) \
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(__builtin_constant_p((port)) ? __outbc((val),(port)) : __outb((val),(port)))
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(__builtin_constant_p((port)) ? __outbc((val),(port)) : __outb((val),(port)))
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#else
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#else
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#define outb(val,port) __outb((val),(port))
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#define outb(val,port) __outb((val),(port))
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#endif
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#endif
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#ifdef __outwc
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#ifdef __outwc
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#define outw(val,port) \
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#define outw(val,port) \
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(__builtin_constant_p((port)) ? __outwc((val),(port)) : __outw((val),(port)))
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(__builtin_constant_p((port)) ? __outwc((val),(port)) : __outw((val),(port)))
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#else
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#else
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#define outw(val,port) __outw((val),(port))
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#define outw(val,port) __outw((val),(port))
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#endif
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#endif
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#ifdef __outlc
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#ifdef __outlc
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#define outl(val,port) \
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#define outl(val,port) \
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(__builtin_constant_p((port)) ? __outlc((val),(port)) : __outl((val),(port)))
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(__builtin_constant_p((port)) ? __outlc((val),(port)) : __outl((val),(port)))
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#else
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#else
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#define outl(val,port) __outl((val),(port))
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#define outl(val,port) __outl((val),(port))
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#endif
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#endif
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#ifdef __inbc
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#ifdef __inbc
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#define inb(port) \
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#define inb(port) \
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(__builtin_constant_p((port)) ? __inbc((port)) : __inb((port)))
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(__builtin_constant_p((port)) ? __inbc((port)) : __inb((port)))
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#else
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#else
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#define inb(port) __inb((port))
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#define inb(port) __inb((port))
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#endif
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#endif
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#ifdef __inwc
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#ifdef __inwc
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#define inw(port) \
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#define inw(port) \
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(__builtin_constant_p((port)) ? __inwc((port)) : __inw((port)))
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(__builtin_constant_p((port)) ? __inwc((port)) : __inw((port)))
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#else
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#else
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#define inw(port) __inw((port))
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#define inw(port) __inw((port))
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#endif
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#endif
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#ifdef __inlc
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#ifdef __inlc
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#define inl(port) \
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#define inl(port) \
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(__builtin_constant_p((port)) ? __inlc((port)) : __inl((port)))
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(__builtin_constant_p((port)) ? __inlc((port)) : __inl((port)))
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#else
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#else
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#define inl(port) __inl((port))
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#define inl(port) __inl((port))
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#endif
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#endif
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/*
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/*
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* This macro will give you the translated IO address for this particular
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* This macro will give you the translated IO address for this particular
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* architecture, which can be used with the out_t... functions.
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* architecture, which can be used with the out_t... functions.
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*/
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*/
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#define ioaddr(port) \
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#define ioaddr(port) \
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(__builtin_constant_p((port)) ? __ioaddrc((port)) : __ioaddr((port)))
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(__builtin_constant_p((port)) ? __ioaddrc((port)) : __ioaddr((port)))
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#ifndef ARCH_IO_DELAY
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#ifndef ARCH_IO_DELAY
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/*
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/*
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* This architecture does not require any delayed IO.
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* This architecture does not require any delayed IO.
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* It is handled in the hardware.
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* It is handled in the hardware.
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*/
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*/
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#define outb_p(val,port) outb((val),(port))
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#define outb_p(val,port) outb((val),(port))
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#define outw_p(val,port) outw((val),(port))
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#define outw_p(val,port) outw((val),(port))
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#define outl_p(val,port) outl((val),(port))
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#define outl_p(val,port) outl((val),(port))
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#define inb_p(port) inb((port))
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#define inb_p(port) inb((port))
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#define inw_p(port) inw((port))
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#define inw_p(port) inw((port))
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#define inl_p(port) inl((port))
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#define inl_p(port) inl((port))
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#define outsb_p(port,from,len) outsb(port,from,len)
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#define outsb_p(port,from,len) outsb(port,from,len)
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#define outsw_p(port,from,len) outsw(port,from,len)
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#define outsw_p(port,from,len) outsw(port,from,len)
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#define outsl_p(port,from,len) outsl(port,from,len)
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#define outsl_p(port,from,len) outsl(port,from,len)
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#define insb_p(port,to,len) insb(port,to,len)
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#define insb_p(port,to,len) insb(port,to,len)
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#define insw_p(port,to,len) insw(port,to,len)
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#define insw_p(port,to,len) insw(port,to,len)
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#define insl_p(port,to,len) insl(port,to,len)
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#define insl_p(port,to,len) insl(port,to,len)
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#else
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#else
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/*
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/*
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* We have to delay the IO...
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* We have to delay the IO...
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*/
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*/
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#ifdef __outbc_p
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#ifdef __outbc_p
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#define outb_p(val,port) \
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#define outb_p(val,port) \
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(__builtin_constant_p((port)) ? __outbc_p((val),(port)) : __outb_p((val),(port)))
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(__builtin_constant_p((port)) ? __outbc_p((val),(port)) : __outb_p((val),(port)))
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#else
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#else
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#define outb_p(val,port) __outb_p((val),(port))
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#define outb_p(val,port) __outb_p((val),(port))
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#endif
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#endif
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#ifdef __outwc_p
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#ifdef __outwc_p
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#define outw_p(val,port) \
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#define outw_p(val,port) \
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(__builtin_constant_p((port)) ? __outwc_p((val),(port)) : __outw_p((val),(port)))
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(__builtin_constant_p((port)) ? __outwc_p((val),(port)) : __outw_p((val),(port)))
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#else
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#else
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#define outw_p(val,port) __outw_p((val),(port))
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#define outw_p(val,port) __outw_p((val),(port))
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#endif
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#endif
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#ifdef __outlc_p
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#ifdef __outlc_p
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#define outl_p(val,port) \
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#define outl_p(val,port) \
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(__builtin_constant_p((port)) ? __outlc_p((val),(port)) : __outl_p((val),(port)))
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(__builtin_constant_p((port)) ? __outlc_p((val),(port)) : __outl_p((val),(port)))
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#else
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#else
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#define outl_p(val,port) __outl_p((val),(port))
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#define outl_p(val,port) __outl_p((val),(port))
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#endif
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#endif
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#ifdef __inbc_p
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#ifdef __inbc_p
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#define inb_p(port) \
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#define inb_p(port) \
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(__builtin_constant_p((port)) ? __inbc_p((port)) : __inb_p((port)))
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(__builtin_constant_p((port)) ? __inbc_p((port)) : __inb_p((port)))
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#else
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#else
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#define inb_p(port) __inb_p((port))
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#define inb_p(port) __inb_p((port))
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#endif
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#endif
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#ifdef __inwc_p
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#ifdef __inwc_p
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#define inw_p(port) \
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#define inw_p(port) \
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(__builtin_constant_p((port)) ? __inwc_p((port)) : __inw_p((port)))
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(__builtin_constant_p((port)) ? __inwc_p((port)) : __inw_p((port)))
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#else
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#else
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#define inw_p(port) __inw_p((port))
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#define inw_p(port) __inw_p((port))
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#endif
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#endif
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#ifdef __inlc_p
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#ifdef __inlc_p
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#define inl_p(port) \
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#define inl_p(port) \
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(__builtin_constant_p((port)) ? __inlc_p((port)) : __inl_p((port)))
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(__builtin_constant_p((port)) ? __inlc_p((port)) : __inl_p((port)))
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#else
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#else
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#define inl_p(port) __inl_p((port))
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#define inl_p(port) __inl_p((port))
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#endif
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#endif
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#endif
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#endif
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#undef ARCH_IO_DELAY
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#undef ARCH_IO_DELAY
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#undef ARCH_IO_CONSTANT
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#undef ARCH_IO_CONSTANT
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/*
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/*
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* Leftovers...
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* Leftovers...
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*/
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*/
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#if 0
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#if 0
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#define __outwc(value,port) \
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#define __outwc(value,port) \
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({ \
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({ \
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if (port < 256) \
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if (port < 256) \
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__asm__ __volatile__( \
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__asm__ __volatile__( \
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"strh %0, [%1, %2]" \
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"strh %0, [%1, %2]" \
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: : "r" (value), "r" (PCIO_BASE), "J" (port << 2)); \
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: : "r" (value), "r" (PCIO_BASE), "J" (port << 2)); \
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else if (__PORT_PCIO(port)) \
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else if (__PORT_PCIO(port)) \
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__asm__ __volatile__( \
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__asm__ __volatile__( \
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"strh %0, [%1, %2]" \
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"strh %0, [%1, %2]" \
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: : "r" (value), "r" (PCIO_BASE), "r" (port << 2)); \
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: : "r" (value), "r" (PCIO_BASE), "r" (port << 2)); \
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else \
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else \
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__asm__ __volatile__( \
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__asm__ __volatile__( \
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"strh %0, [%1, %2]" \
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"strh %0, [%1, %2]" \
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: : "r" (value), "r" (IO_BASE), "r" (port << 2)); \
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: : "r" (value), "r" (IO_BASE), "r" (port << 2)); \
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})
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})
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#define __inwc(port) \
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#define __inwc(port) \
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({ \
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({ \
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unsigned short result; \
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unsigned short result; \
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if (port < 256) \
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if (port < 256) \
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__asm__ __volatile__( \
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__asm__ __volatile__( \
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"ldrh %0, [%1, %2]" \
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"ldrh %0, [%1, %2]" \
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: "=r" (result) : "r" (PCIO_BASE), "J" (port << 2)); \
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: "=r" (result) : "r" (PCIO_BASE), "J" (port << 2)); \
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else \
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else \
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if (__PORT_PCIO(port)) \
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if (__PORT_PCIO(port)) \
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__asm__ __volatile__( \
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__asm__ __volatile__( \
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"ldrh %0, [%1, %2]" \
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"ldrh %0, [%1, %2]" \
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: "=r" (result) : "r" (PCIO_BASE), "r" (port << 2)); \
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: "=r" (result) : "r" (PCIO_BASE), "r" (port << 2)); \
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else \
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else \
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__asm__ __volatile__( \
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__asm__ __volatile__( \
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"ldrh %0, [%1, %2]" \
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"ldrh %0, [%1, %2]" \
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: "=r" (result) : "r" (IO_BASE), "r" (port << 2)); \
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: "=r" (result) : "r" (IO_BASE), "r" (port << 2)); \
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result; \
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result; \
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})
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})
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#endif
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#endif
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#endif
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#endif
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