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-rw-r--r--include/asm-mips/io.h492
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diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h
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--- a/include/asm-mips/io.h
+++ /dev/null
@@ -1,492 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1994, 1995 Waldorf GmbH
- * Copyright (C) 1994 - 2000 Ralf Baechle
- * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
- * Copyright (C) 2000 FSMLabs, Inc.
- */
-#ifndef _ASM_IO_H
-#define _ASM_IO_H
-
-#include <linux/config.h>
-#if 0
-#include <linux/pagemap.h>
-#endif
-#include <asm/addrspace.h>
-#include <asm/byteorder.h>
-
-/*
- * Slowdown I/O port space accesses for antique hardware.
- */
-#undef CONF_SLOWDOWN_IO
-
-/*
- * Sane hardware offers swapping of I/O space accesses in hardware; less
- * sane hardware forces software to fiddle with this ...
- */
-#if defined(CONFIG_SWAP_IO_SPACE) && defined(__MIPSEB__)
-
-#define __ioswab8(x) (x)
-#define __ioswab16(x) swab16(x)
-#define __ioswab32(x) swab32(x)
-
-#else
-
-#define __ioswab8(x) (x)
-#define __ioswab16(x) (x)
-#define __ioswab32(x) (x)
-
-#endif
-
-/*
- * This file contains the definitions for the MIPS counterpart of the
- * x86 in/out instructions. This heap of macros and C results in much
- * better code than the approach of doing it in plain C. The macros
- * result in code that is to fast for certain hardware. On the other
- * side the performance of the string functions should be improved for
- * sake of certain devices like EIDE disks that do highspeed polled I/O.
- *
- * Ralf
- *
- * This file contains the definitions for the x86 IO instructions
- * inb/inw/inl/outb/outw/outl and the "string versions" of the same
- * (insb/insw/insl/outsb/outsw/outsl). You can also use "pausing"
- * versions of the single-IO instructions (inb_p/inw_p/..).
- *
- * This file is not meant to be obfuscating: it's just complicated
- * to (a) handle it all in a way that makes gcc able to optimize it
- * as well as possible and (b) trying to avoid writing the same thing
- * over and over again with slight variations and possibly making a
- * mistake somewhere.
- */
-
-/*
- * On MIPS I/O ports are memory mapped, so we access them using normal
- * load/store instructions. mips_io_port_base is the virtual address to
- * which all ports are being mapped. For sake of efficiency some code
- * assumes that this is an address that can be loaded with a single lui
- * instruction, so the lower 16 bits must be zero. Should be true on
- * on any sane architecture; generic code does not use this assumption.
- */
-extern const unsigned long mips_io_port_base;
-
-/*
- * Gcc will generate code to load the value of mips_io_port_base after each
- * function call which may be fairly wasteful in some cases. So we don't
- * play quite by the book. We tell gcc mips_io_port_base is a long variable
- * which solves the code generation issue. Now we need to violate the
- * aliasing rules a little to make initialization possible and finally we
- * will need the barrier() to fight side effects of the aliasing chat.
- * This trickery will eventually collapse under gcc's optimizer. Oh well.
- */
-static inline void set_io_port_base(unsigned long base)
-{
- * (unsigned long *) &mips_io_port_base = base;
-}
-
-/*
- * Thanks to James van Artsdalen for a better timing-fix than
- * the two short jumps: using outb's to a nonexistent port seems
- * to guarantee better timings even on fast machines.
- *
- * On the other hand, I'd like to be sure of a non-existent port:
- * I feel a bit unsafe about using 0x80 (should be safe, though)
- *
- * Linus
- *
- */
-
-#define __SLOW_DOWN_IO \
- __asm__ __volatile__( \
- "sb\t$0,0x80(%0)" \
- : : "r" (mips_io_port_base));
-
-#ifdef CONF_SLOWDOWN_IO
-#ifdef REALLY_SLOW_IO
-#define SLOW_DOWN_IO { __SLOW_DOWN_IO; __SLOW_DOWN_IO; __SLOW_DOWN_IO; __SLOW_DOWN_IO; }
-#else
-#define SLOW_DOWN_IO __SLOW_DOWN_IO
-#endif
-#else
-#define SLOW_DOWN_IO
-#endif
-
-/*
- * Change virtual addresses to physical addresses and vv.
- * These are trivial on the 1:1 Linux/MIPS mapping
- */
-extern inline phys_addr_t virt_to_phys(volatile void * address)
-{
- return CPHYSADDR(address);
-}
-
-extern inline void * phys_to_virt(unsigned long address)
-{
- return (void *)KSEG0ADDR(address);
-}
-
-/*
- * IO bus memory addresses are also 1:1 with the physical address
- */
-extern inline unsigned long virt_to_bus(volatile void * address)
-{
- return CPHYSADDR(address);
-}
-
-extern inline void * bus_to_virt(unsigned long address)
-{
- return (void *)KSEG0ADDR(address);
-}
-
-/*
- * isa_slot_offset is the address where E(ISA) busaddress 0 is mapped
- * for the processor.
- */
-extern unsigned long isa_slot_offset;
-
-extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
-
-#if 0
-extern inline void *ioremap(unsigned long offset, unsigned long size)
-{
- return __ioremap(offset, size, _CACHE_UNCACHED);
-}
-
-extern inline void *ioremap_nocache(unsigned long offset, unsigned long size)
-{
- return __ioremap(offset, size, _CACHE_UNCACHED);
-}
-
-extern void iounmap(void *addr);
-#endif
-
-/*
- * XXX We need system specific versions of these to handle EISA address bits
- * 24-31 on SNI.
- * XXX more SNI hacks.
- */
-#define readb(addr) (*(volatile unsigned char *)(addr))
-#define readw(addr) __ioswab16((*(volatile unsigned short *)(addr)))
-#define readl(addr) __ioswab32((*(volatile unsigned int *)(addr)))
-#define __raw_readb readb
-#define __raw_readw readw
-#define __raw_readl readl
-
-#define writeb(b,addr) (*(volatile unsigned char *)(addr)) = (b)
-#define writew(b,addr) (*(volatile unsigned short *)(addr)) = (__ioswab16(b))
-#define writel(b,addr) (*(volatile unsigned int *)(addr)) = (__ioswab32(b))
-#define __raw_writeb writeb
-#define __raw_writew writew
-#define __raw_writel writel
-
-#define memset_io(a,b,c) memset((void *)(a),(b),(c))
-#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
-#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
-
-/* END SNI HACKS ... */
-
-/*
- * ISA space is 'always mapped' on currently supported MIPS systems, no need
- * to explicitly ioremap() it. The fact that the ISA IO space is mapped
- * to PAGE_OFFSET is pure coincidence - it does not mean ISA values
- * are physical addresses. The following constant pointer can be
- * used as the IO-area pointer (it can be iounmapped as well, so the
- * analogy with PCI is quite large):
- */
-#define __ISA_IO_base ((char *)(PAGE_OFFSET))
-
-#define isa_readb(a) readb(a)
-#define isa_readw(a) readw(a)
-#define isa_readl(a) readl(a)
-#define isa_writeb(b,a) writeb(b,a)
-#define isa_writew(w,a) writew(w,a)
-#define isa_writel(l,a) writel(l,a)
-
-#define isa_memset_io(a,b,c) memset_io((a),(b),(c))
-#define isa_memcpy_fromio(a,b,c) memcpy_fromio((a),(b),(c))
-#define isa_memcpy_toio(a,b,c) memcpy_toio((a),(b),(c))
-
-/*
- * We don't have csum_partial_copy_fromio() yet, so we cheat here and
- * just copy it. The net code will then do the checksum later.
- */
-#define eth_io_copy_and_sum(skb,src,len,unused) memcpy_fromio((skb)->data,(src),(len))
-#define isa_eth_io_copy_and_sum(a,b,c,d) eth_copy_and_sum((a),(b),(c),(d))
-
-static inline int check_signature(unsigned long io_addr,
- const unsigned char *signature, int length)
-{
- int retval = 0;
- do {
- if (readb(io_addr) != *signature)
- goto out;
- io_addr++;
- signature++;
- length--;
- } while (length);
- retval = 1;
-out:
- return retval;
-}
-#define isa_check_signature(io, s, l) check_signature(i,s,l)
-
-/*
- * Talk about misusing macros..
- */
-
-#define __OUT1(s) \
-extern inline void __out##s(unsigned int value, unsigned int port) {
-
-#define __OUT2(m) \
-__asm__ __volatile__ ("s" #m "\t%0,%1(%2)"
-
-#define __OUT(m,s,w) \
-__OUT1(s) __OUT2(m) : : "r" (__ioswab##w(value)), "i" (0), "r" (mips_io_port_base+port)); } \
-__OUT1(s##c) __OUT2(m) : : "r" (__ioswab##w(value)), "ir" (port), "r" (mips_io_port_base)); } \
-__OUT1(s##_p) __OUT2(m) : : "r" (__ioswab##w(value)), "i" (0), "r" (mips_io_port_base+port)); \
- SLOW_DOWN_IO; } \
-__OUT1(s##c_p) __OUT2(m) : : "r" (__ioswab##w(value)), "ir" (port), "r" (mips_io_port_base)); \
- SLOW_DOWN_IO; }
-
-#define __IN1(t,s) \
-extern __inline__ t __in##s(unsigned int port) { t _v;
-
-/*
- * Required nops will be inserted by the assembler
- */
-#define __IN2(m) \
-__asm__ __volatile__ ("l" #m "\t%0,%1(%2)"
-
-#define __IN(t,m,s,w) \
-__IN1(t,s) __IN2(m) : "=r" (_v) : "i" (0), "r" (mips_io_port_base+port)); return __ioswab##w(_v); } \
-__IN1(t,s##c) __IN2(m) : "=r" (_v) : "ir" (port), "r" (mips_io_port_base)); return __ioswab##w(_v); } \
-__IN1(t,s##_p) __IN2(m) : "=r" (_v) : "i" (0), "r" (mips_io_port_base+port)); SLOW_DOWN_IO; return __ioswab##w(_v); } \
-__IN1(t,s##c_p) __IN2(m) : "=r" (_v) : "ir" (port), "r" (mips_io_port_base)); SLOW_DOWN_IO; return __ioswab##w(_v); }
-
-#define __INS1(s) \
-extern inline void __ins##s(unsigned int port, void * addr, unsigned long count) {
-
-#define __INS2(m) \
-if (count) \
-__asm__ __volatile__ ( \
- ".set\tnoreorder\n\t" \
- ".set\tnoat\n" \
- "1:\tl" #m "\t$1,%4(%5)\n\t" \
- "subu\t%1,1\n\t" \
- "s" #m "\t$1,(%0)\n\t" \
- "bne\t$0,%1,1b\n\t" \
- "addiu\t%0,%6\n\t" \
- ".set\tat\n\t" \
- ".set\treorder"
-
-#define __INS(m,s,i) \
-__INS1(s) __INS2(m) \
- : "=r" (addr), "=r" (count) \
- : "0" (addr), "1" (count), "i" (0), \
- "r" (mips_io_port_base+port), "I" (i) \
- : "$1");} \
-__INS1(s##c) __INS2(m) \
- : "=r" (addr), "=r" (count) \
- : "0" (addr), "1" (count), "ir" (port), \
- "r" (mips_io_port_base), "I" (i) \
- : "$1");}
-
-#define __OUTS1(s) \
-extern inline void __outs##s(unsigned int port, const void * addr, unsigned long count) {
-
-#define __OUTS2(m) \
-if (count) \
-__asm__ __volatile__ ( \
- ".set\tnoreorder\n\t" \
- ".set\tnoat\n" \
- "1:\tl" #m "\t$1,(%0)\n\t" \
- "subu\t%1,1\n\t" \
- "s" #m "\t$1,%4(%5)\n\t" \
- "bne\t$0,%1,1b\n\t" \
- "addiu\t%0,%6\n\t" \
- ".set\tat\n\t" \
- ".set\treorder"
-
-#define __OUTS(m,s,i) \
-__OUTS1(s) __OUTS2(m) \
- : "=r" (addr), "=r" (count) \
- : "0" (addr), "1" (count), "i" (0), "r" (mips_io_port_base+port), "I" (i) \
- : "$1");} \
-__OUTS1(s##c) __OUTS2(m) \
- : "=r" (addr), "=r" (count) \
- : "0" (addr), "1" (count), "ir" (port), "r" (mips_io_port_base), "I" (i) \
- : "$1");}
-
-__IN(unsigned char,b,b,8)
-__IN(unsigned short,h,w,16)
-__IN(unsigned int,w,l,32)
-
-__OUT(b,b,8)
-__OUT(h,w,16)
-__OUT(w,l,32)
-
-__INS(b,b,1)
-__INS(h,w,2)
-__INS(w,l,4)
-
-__OUTS(b,b,1)
-__OUTS(h,w,2)
-__OUTS(w,l,4)
-
-
-/*
- * Note that due to the way __builtin_constant_p() works, you
- * - can't use it inside an inline function (it will never be true)
- * - you don't have to worry about side effects within the __builtin..
- */
-#define outb(val,port) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __outbc((val),(port)) : \
- __outb((val),(port)))
-
-#define inb(port) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __inbc(port) : \
- __inb(port))
-
-#define outb_p(val,port) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __outbc_p((val),(port)) : \
- __outb_p((val),(port)))
-
-#define inb_p(port) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __inbc_p(port) : \
- __inb_p(port))
-
-#define outw(val,port) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __outwc((val),(port)) : \
- __outw((val),(port)))
-
-#define inw(port) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __inwc(port) : \
- __inw(port))
-
-#define outw_p(val,port) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __outwc_p((val),(port)) : \
- __outw_p((val),(port)))
-
-#define inw_p(port) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __inwc_p(port) : \
- __inw_p(port))
-
-#define outl(val,port) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __outlc((val),(port)) : \
- __outl((val),(port)))
-
-#define inl(port) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __inlc(port) : \
- __inl(port))
-
-#define outl_p(val,port) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __outlc_p((val),(port)) : \
- __outl_p((val),(port)))
-
-#define inl_p(port) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __inlc_p(port) : \
- __inl_p(port))
-
-
-#define outsb(port,addr,count) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __outsbc((port),(addr),(count)) : \
- __outsb ((port),(addr),(count)))
-
-#define insb(port,addr,count) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __insbc((port),(addr),(count)) : \
- __insb((port),(addr),(count)))
-
-#define outsw(port,addr,count) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __outswc((port),(addr),(count)) : \
- __outsw ((port),(addr),(count)))
-
-#define insw(port,addr,count) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __inswc((port),(addr),(count)) : \
- __insw((port),(addr),(count)))
-
-#define outsl(port,addr,count) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __outslc((port),(addr),(count)) : \
- __outsl ((port),(addr),(count)))
-
-#define insl(port,addr,count) \
-((__builtin_constant_p((port)) && (port) < 32768) ? \
- __inslc((port),(addr),(count)) : \
- __insl((port),(addr),(count)))
-
-#define IO_SPACE_LIMIT 0xffff
-
-/*
- * The caches on some architectures aren't dma-coherent and have need to
- * handle this in software. There are three types of operations that
- * can be applied to dma buffers.
- *
- * - dma_cache_wback_inv(start, size) makes caches and coherent by
- * writing the content of the caches back to memory, if necessary.
- * The function also invalidates the affected part of the caches as
- * necessary before DMA transfers from outside to memory.
- * - dma_cache_wback(start, size) makes caches and coherent by
- * writing the content of the caches back to memory, if necessary.
- * The function also invalidates the affected part of the caches as
- * necessary before DMA transfers from outside to memory.
- * - dma_cache_inv(start, size) invalidates the affected parts of the
- * caches. Dirty lines of the caches may be written back or simply
- * be discarded. This operation is necessary before dma operations
- * to the memory.
- */
-extern void (*_dma_cache_wback_inv)(unsigned long start, unsigned long size);
-extern void (*_dma_cache_wback)(unsigned long start, unsigned long size);
-extern void (*_dma_cache_inv)(unsigned long start, unsigned long size);
-
-#define dma_cache_wback_inv(start,size) _dma_cache_wback_inv(start,size)
-#define dma_cache_wback(start,size) _dma_cache_wback(start,size)
-#define dma_cache_inv(start,size) _dma_cache_inv(start,size)
-
-static inline void sync(void)
-{
-}
-
-/*
- * Given a physical address and a length, return a virtual address
- * that can be used to access the memory range with the caching
- * properties specified by "flags".
- */
-#define MAP_NOCACHE (0)
-#define MAP_WRCOMBINE (0)
-#define MAP_WRBACK (0)
-#define MAP_WRTHROUGH (0)
-
-static inline void *
-map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
-{
- return (void *)paddr;
-}
-
-/*
- * Take down a mapping set up by map_physmem().
- */
-static inline void unmap_physmem(void *vaddr, unsigned long flags)
-{
-
-}
-
-#endif /* _ASM_IO_H */