xenocara/xserver/hw/xfree86/common/compiler.h

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/*
* Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Thomas Roell not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Thomas Roell makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THOMAS ROELL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
*/
/*
* Copyright (c) 1994-2003 by The XFree86 Project, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of the copyright holder(s)
* and author(s) shall not be used in advertising or otherwise to promote
* the sale, use or other dealings in this Software without prior written
* authorization from the copyright holder(s) and author(s).
*/
#ifndef _COMPILER_H
#define _COMPILER_H
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#if defined(__SUNPRO_C)
#define DO_PROTOTYPES
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#endif
/* Map Sun compiler platform defines to gcc-style used in the code */
#if defined(__amd64) && !defined(__amd64__)
#define __amd64__
#endif
#if defined(__i386) && !defined(__i386__)
#define __i386__
#endif
#if defined(__sparc) && !defined(__sparc__)
#define __sparc__
#endif
#if defined(__sparcv9) && !defined(__sparc64__)
#define __sparc64__
#endif
#ifndef _X_EXPORT
#include <X11/Xfuncproto.h>
#endif
#include <pixman.h> /* for uint*_t types */
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/* Allow drivers to use the GCC-supported __inline__ and/or __inline. */
#ifndef __inline__
#if defined(__GNUC__)
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/* gcc has __inline__ */
#else
#define __inline__ /**/
#endif
#endif /* __inline__ */
#ifndef __inline
#if defined(__GNUC__)
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/* gcc has __inline */
#else
#define __inline /**/
#endif
#endif /* __inline */
/* Support gcc's __FUNCTION__ for people using other compilers */
#if !defined(__GNUC__) && !defined(__FUNCTION__)
#define __FUNCTION__ __func__ /* C99 */
#endif
#if defined(DO_PROTOTYPES)
#if !defined(__arm__)
#if !defined(__sparc__) && !defined(__arm32__) && !defined(__nds32__) \
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&& !(defined(__alpha__) && defined(linux)) \
&& !(defined(__ia64__) && defined(linux)) \
&& !(defined(__mips64) && defined(linux)) \
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extern _X_EXPORT void outb(unsigned short, unsigned char);
extern _X_EXPORT void outw(unsigned short, unsigned short);
extern _X_EXPORT void outl(unsigned short, unsigned int);
extern _X_EXPORT unsigned int inb(unsigned short);
extern _X_EXPORT unsigned int inw(unsigned short);
extern _X_EXPORT unsigned int inl(unsigned short);
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#else /* __sparc__, __arm32__, __alpha__, __nds32__ */
extern _X_EXPORT void outb(unsigned long, unsigned char);
extern _X_EXPORT void outw(unsigned long, unsigned short);
extern _X_EXPORT void outl(unsigned long, unsigned int);
extern _X_EXPORT unsigned int inb(unsigned long);
extern _X_EXPORT unsigned int inw(unsigned long);
extern _X_EXPORT unsigned int inl(unsigned long);
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#ifdef __SUNPRO_C
extern _X_EXPORT unsigned char xf86ReadMmio8 (void *, unsigned long);
extern _X_EXPORT unsigned short xf86ReadMmio16Be (void *, unsigned long);
extern _X_EXPORT unsigned short xf86ReadMmio16Le (void *, unsigned long);
extern _X_EXPORT unsigned int xf86ReadMmio32Be (void *, unsigned long);
extern _X_EXPORT unsigned int xf86ReadMmio32Le (void *, unsigned long);
extern _X_EXPORT void xf86WriteMmio8 (void *, unsigned long, unsigned int);
extern _X_EXPORT void xf86WriteMmio16Be (void *, unsigned long, unsigned int);
extern _X_EXPORT void xf86WriteMmio16Le (void *, unsigned long, unsigned int);
extern _X_EXPORT void xf86WriteMmio32Be (void *, unsigned long, unsigned int);
extern _X_EXPORT void xf86WriteMmio32Le (void *, unsigned long, unsigned int);
#endif /* _SUNPRO_C */
#endif /* __sparc__, __arm32__, __alpha__, __nds32__ */
#endif /* __arm__ */
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#endif /* NO_INLINE || DO_PROTOTYPES */
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#ifdef __GNUC__
#ifdef __i386__
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#ifdef __SSE__
#define write_mem_barrier() __asm__ __volatile__ ("sfence" : : : "memory")
#else
#define write_mem_barrier() __asm__ __volatile__ ("lock; addl $0,0(%%esp)" : : : "memory")
#endif
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#ifdef __SSE2__
#define mem_barrier() __asm__ __volatile__ ("mfence" : : : "memory")
#else
#define mem_barrier() __asm__ __volatile__ ("lock; addl $0,0(%%esp)" : : : "memory")
#endif
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#elif defined __alpha__
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#define mem_barrier() __asm__ __volatile__ ("mb" : : : "memory")
#define write_mem_barrier() __asm__ __volatile__ ("wmb" : : : "memory")
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#elif defined __amd64__
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#define mem_barrier() __asm__ __volatile__ ("mfence" : : : "memory")
#define write_mem_barrier() __asm__ __volatile__ ("sfence" : : : "memory")
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#elif defined __ia64__
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#ifndef __INTEL_COMPILER
#define mem_barrier() __asm__ __volatile__ ("mf" : : : "memory")
#define write_mem_barrier() __asm__ __volatile__ ("mf" : : : "memory")
#else
#include "ia64intrin.h"
#define mem_barrier() __mf()
#define write_mem_barrier() __mf()
#endif
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#elif defined __mips__
/* Note: sync instruction requires MIPS II instruction set */
#define mem_barrier() \
__asm__ __volatile__( \
".set push\n\t" \
".set noreorder\n\t" \
".set mips2\n\t" \
"sync\n\t" \
".set pop" \
: /* no output */ \
: /* no input */ \
: "memory")
#define write_mem_barrier() mem_barrier()
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#elif defined __powerpc__
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#ifndef eieio
#define eieio() __asm__ __volatile__ ("eieio" ::: "memory")
#endif /* eieio */
#define mem_barrier() eieio()
#define write_mem_barrier() eieio()
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#elif defined __sparc__
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#define barrier() __asm__ __volatile__ (".word 0x8143e00a" : : : "memory")
#define mem_barrier() /* XXX: nop for now */
#define write_mem_barrier() /* XXX: nop for now */
#endif
#endif /* __GNUC__ */
#ifndef barrier
#define barrier()
#endif
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#ifndef mem_barrier
#define mem_barrier() /* NOP */
#endif
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#ifndef write_mem_barrier
#define write_mem_barrier() /* NOP */
#endif
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#ifdef __GNUC__
#if defined(__alpha__)
#ifdef linux
/* for Linux on Alpha, we use the LIBC _inx/_outx routines */
/* note that the appropriate setup via "ioperm" needs to be done */
/* *before* any inx/outx is done. */
extern _X_EXPORT void _outb(unsigned char val, unsigned long port);
extern _X_EXPORT void _outw(unsigned short val, unsigned long port);
extern _X_EXPORT void _outl(unsigned int val, unsigned long port);
extern _X_EXPORT unsigned int _inb(unsigned long port);
extern _X_EXPORT unsigned int _inw(unsigned long port);
extern _X_EXPORT unsigned int _inl(unsigned long port);
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static __inline__ void
outb(unsigned long port, unsigned char val)
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{
_outb(val, port);
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}
static __inline__ void
outw(unsigned long port, unsigned short val)
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{
_outw(val, port);
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}
static __inline__ void
outl(unsigned long port, unsigned int val)
{
_outl(val, port);
}
static __inline__ unsigned int
inb(unsigned long port)
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{
return _inb(port);
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}
static __inline__ unsigned int
inw(unsigned long port)
{
return _inw(port);
}
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static __inline__ unsigned int
inl(unsigned long port)
{
return _inl(port);
}
#endif /* linux */
#if (defined(__FreeBSD__) || defined(__OpenBSD__)) \
&& !defined(DO_PROTOTYPES)
/* for FreeBSD and OpenBSD on Alpha, we use the libio (resp. libalpha) */
/* inx/outx routines */
/* note that the appropriate setup via "ioperm" needs to be done */
/* *before* any inx/outx is done. */
extern _X_EXPORT void outb(unsigned int port, unsigned char val);
extern _X_EXPORT void outw(unsigned int port, unsigned short val);
extern _X_EXPORT void outl(unsigned int port, unsigned int val);
extern _X_EXPORT unsigned char inb(unsigned int port);
extern _X_EXPORT unsigned short inw(unsigned int port);
extern _X_EXPORT unsigned int inl(unsigned int port);
#endif /* (__FreeBSD__ || __OpenBSD__ ) && !DO_PROTOTYPES */
#if defined(__NetBSD__)
#include <machine/pio.h>
#endif /* __NetBSD__ */
#elif defined(__amd64__)
#include <inttypes.h>
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static __inline__ void
outb(unsigned short port, unsigned char val)
{
__asm__ __volatile__("outb %0,%1"::"a"(val), "d"(port));
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}
static __inline__ void
outw(unsigned short port, unsigned short val)
{
__asm__ __volatile__("outw %0,%1"::"a"(val), "d"(port));
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}
static __inline__ void
outl(unsigned short port, unsigned int val)
{
__asm__ __volatile__("outl %0,%1"::"a"(val), "d"(port));
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}
static __inline__ unsigned int
inb(unsigned short port)
{
unsigned char ret;
__asm__ __volatile__("inb %1,%0":"=a"(ret):"d"(port));
return ret;
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}
static __inline__ unsigned int
inw(unsigned short port)
{
unsigned short ret;
__asm__ __volatile__("inw %1,%0":"=a"(ret):"d"(port));
return ret;
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}
static __inline__ unsigned int
inl(unsigned short port)
{
unsigned int ret;
__asm__ __volatile__("inl %1,%0":"=a"(ret):"d"(port));
return ret;
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}
#elif defined(__sparc__)
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#ifndef ASI_PL
#define ASI_PL 0x88
#endif
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static __inline__ void
outb(unsigned long port, unsigned char val)
{
__asm__ __volatile__("stba %0, [%1] %2": /* No outputs */
:"r"(val), "r"(port), "i"(ASI_PL));
barrier();
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}
static __inline__ void
outw(unsigned long port, unsigned short val)
{
__asm__ __volatile__("stha %0, [%1] %2": /* No outputs */
:"r"(val), "r"(port), "i"(ASI_PL));
barrier();
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}
static __inline__ void
outl(unsigned long port, unsigned int val)
{
__asm__ __volatile__("sta %0, [%1] %2": /* No outputs */
:"r"(val), "r"(port), "i"(ASI_PL));
barrier();
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}
static __inline__ unsigned int
inb(unsigned long port)
{
unsigned int ret;
__asm__ __volatile__("lduba [%1] %2, %0":"=r"(ret)
:"r"(port), "i"(ASI_PL));
return ret;
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}
static __inline__ unsigned int
inw(unsigned long port)
{
unsigned int ret;
__asm__ __volatile__("lduha [%1] %2, %0":"=r"(ret)
:"r"(port), "i"(ASI_PL));
return ret;
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}
static __inline__ unsigned int
inl(unsigned long port)
{
unsigned int ret;
__asm__ __volatile__("lda [%1] %2, %0":"=r"(ret)
:"r"(port), "i"(ASI_PL));
return ret;
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}
static __inline__ unsigned char
xf86ReadMmio8(__volatile__ void *base, const unsigned long offset)
{
unsigned long addr = ((unsigned long) base) + offset;
unsigned char ret;
__asm__ __volatile__("lduba [%1] %2, %0":"=r"(ret)
:"r"(addr), "i"(ASI_PL));
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return ret;
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}
static __inline__ unsigned short
xf86ReadMmio16Be(__volatile__ void *base, const unsigned long offset)
{
unsigned long addr = ((unsigned long) base) + offset;
unsigned short ret;
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__asm__ __volatile__("lduh [%1], %0":"=r"(ret)
:"r"(addr));
return ret;
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}
static __inline__ unsigned short
xf86ReadMmio16Le(__volatile__ void *base, const unsigned long offset)
{
unsigned long addr = ((unsigned long) base) + offset;
unsigned short ret;
__asm__ __volatile__("lduha [%1] %2, %0":"=r"(ret)
:"r"(addr), "i"(ASI_PL));
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return ret;
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}
static __inline__ unsigned int
xf86ReadMmio32Be(__volatile__ void *base, const unsigned long offset)
{
unsigned long addr = ((unsigned long) base) + offset;
unsigned int ret;
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__asm__ __volatile__("ld [%1], %0":"=r"(ret)
:"r"(addr));
return ret;
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}
static __inline__ unsigned int
xf86ReadMmio32Le(__volatile__ void *base, const unsigned long offset)
{
unsigned long addr = ((unsigned long) base) + offset;
unsigned int ret;
__asm__ __volatile__("lda [%1] %2, %0":"=r"(ret)
:"r"(addr), "i"(ASI_PL));
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return ret;
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}
static __inline__ void
xf86WriteMmio8(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
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{
unsigned long addr = ((unsigned long) base) + offset;
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__asm__ __volatile__("stba %0, [%1] %2": /* No outputs */
:"r"(val), "r"(addr), "i"(ASI_PL));
barrier();
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}
static __inline__ void
xf86WriteMmio16Be(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
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{
unsigned long addr = ((unsigned long) base) + offset;
__asm__ __volatile__("sth %0, [%1]": /* No outputs */
:"r"(val), "r"(addr));
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barrier();
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}
static __inline__ void
xf86WriteMmio16Le(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
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{
unsigned long addr = ((unsigned long) base) + offset;
__asm__ __volatile__("stha %0, [%1] %2": /* No outputs */
:"r"(val), "r"(addr), "i"(ASI_PL));
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barrier();
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}
static __inline__ void
xf86WriteMmio32Be(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
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{
unsigned long addr = ((unsigned long) base) + offset;
__asm__ __volatile__("st %0, [%1]": /* No outputs */
:"r"(val), "r"(addr));
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barrier();
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}
static __inline__ void
xf86WriteMmio32Le(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
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{
unsigned long addr = ((unsigned long) base) + offset;
__asm__ __volatile__("sta %0, [%1] %2": /* No outputs */
:"r"(val), "r"(addr), "i"(ASI_PL));
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barrier();
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}
#elif defined(__mips__) || (defined(__arm32__) && !defined(__linux__))
#if defined(__arm32__) || defined(__mips64__)
#define PORT_SIZE long
#else
#define PORT_SIZE short
#endif
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_X_EXPORT unsigned int IOPortBase; /* Memory mapped I/O port area */
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static __inline__ void
outb(unsigned PORT_SIZE port, unsigned char val)
{
*(volatile unsigned char *) (((unsigned PORT_SIZE) (port)) + IOPortBase) =
val;
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}
static __inline__ void
outw(unsigned PORT_SIZE port, unsigned short val)
{
*(volatile unsigned short *) (((unsigned PORT_SIZE) (port)) + IOPortBase) =
val;
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}
static __inline__ void
outl(unsigned PORT_SIZE port, unsigned int val)
{
*(volatile unsigned int *) (((unsigned PORT_SIZE) (port)) + IOPortBase) =
val;
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}
static __inline__ unsigned int
inb(unsigned PORT_SIZE port)
{
return *(volatile unsigned char *) (((unsigned PORT_SIZE) (port)) +
IOPortBase);
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}
static __inline__ unsigned int
inw(unsigned PORT_SIZE port)
{
return *(volatile unsigned short *) (((unsigned PORT_SIZE) (port)) +
IOPortBase);
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}
static __inline__ unsigned int
inl(unsigned PORT_SIZE port)
{
return *(volatile unsigned int *) (((unsigned PORT_SIZE) (port)) +
IOPortBase);
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}
#if defined(__mips__)
#ifdef linux /* don't mess with other OSs */
#if X_BYTE_ORDER == X_BIG_ENDIAN
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static __inline__ unsigned int
xf86ReadMmio32Be(__volatile__ void *base, const unsigned long offset)
{
unsigned long addr = ((unsigned long) base) + offset;
unsigned int ret;
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__asm__ __volatile__("lw %0, 0(%1)":"=r"(ret)
:"r"(addr));
return ret;
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}
static __inline__ void
xf86WriteMmio32Be(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
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{
unsigned long addr = ((unsigned long) base) + offset;
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__asm__ __volatile__("sw %0, 0(%1)": /* No outputs */
:"r"(val), "r"(addr));
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}
#endif
#endif /* !linux */
#endif /* __mips__ */
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#elif defined(__powerpc__)
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#ifndef MAP_FAILED
#define MAP_FAILED ((void *)-1)
#endif
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extern _X_EXPORT volatile unsigned char *ioBase;
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static __inline__ unsigned char
xf86ReadMmio8(__volatile__ void *base, const unsigned long offset)
{
register unsigned char val;
__asm__ __volatile__("lbzx %0,%1,%2\n\t" "eieio":"=r"(val)
:"b"(base), "r"(offset),
"m"(*((volatile unsigned char *) base + offset)));
return val;
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}
static __inline__ unsigned short
xf86ReadMmio16Be(__volatile__ void *base, const unsigned long offset)
{
register unsigned short val;
__asm__ __volatile__("lhzx %0,%1,%2\n\t" "eieio":"=r"(val)
:"b"(base), "r"(offset),
"m"(*((volatile unsigned char *) base + offset)));
return val;
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}
static __inline__ unsigned short
xf86ReadMmio16Le(__volatile__ void *base, const unsigned long offset)
{
register unsigned short val;
__asm__ __volatile__("lhbrx %0,%1,%2\n\t" "eieio":"=r"(val)
:"b"(base), "r"(offset),
"m"(*((volatile unsigned char *) base + offset)));
return val;
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}
static __inline__ unsigned int
xf86ReadMmio32Be(__volatile__ void *base, const unsigned long offset)
{
register unsigned int val;
__asm__ __volatile__("lwzx %0,%1,%2\n\t" "eieio":"=r"(val)
:"b"(base), "r"(offset),
"m"(*((volatile unsigned char *) base + offset)));
return val;
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}
static __inline__ unsigned int
xf86ReadMmio32Le(__volatile__ void *base, const unsigned long offset)
{
register unsigned int val;
__asm__ __volatile__("lwbrx %0,%1,%2\n\t" "eieio":"=r"(val)
:"b"(base), "r"(offset),
"m"(*((volatile unsigned char *) base + offset)));
return val;
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}
static __inline__ void
xf86WriteMmio8(__volatile__ void *base, const unsigned long offset,
const unsigned char val)
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{
__asm__
__volatile__("stbx %1,%2,%3\n\t":"=m"
(*((volatile unsigned char *) base + offset))
:"r"(val), "b"(base), "r"(offset));
eieio();
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}
static __inline__ void
xf86WriteMmio16Le(__volatile__ void *base, const unsigned long offset,
const unsigned short val)
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{
__asm__
__volatile__("sthbrx %1,%2,%3\n\t":"=m"
(*((volatile unsigned char *) base + offset))
:"r"(val), "b"(base), "r"(offset));
eieio();
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}
static __inline__ void
xf86WriteMmio16Be(__volatile__ void *base, const unsigned long offset,
const unsigned short val)
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{
__asm__
__volatile__("sthx %1,%2,%3\n\t":"=m"
(*((volatile unsigned char *) base + offset))
:"r"(val), "b"(base), "r"(offset));
eieio();
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}
static __inline__ void
xf86WriteMmio32Le(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
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{
__asm__
__volatile__("stwbrx %1,%2,%3\n\t":"=m"
(*((volatile unsigned char *) base + offset))
:"r"(val), "b"(base), "r"(offset));
eieio();
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}
static __inline__ void
xf86WriteMmio32Be(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
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{
__asm__
__volatile__("stwx %1,%2,%3\n\t":"=m"
(*((volatile unsigned char *) base + offset))
:"r"(val), "b"(base), "r"(offset));
eieio();
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}
static __inline__ void
outb(unsigned short port, unsigned char value)
{
if (ioBase == MAP_FAILED)
return;
xf86WriteMmio8((void *) ioBase, port, value);
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}
static __inline__ void
outw(unsigned short port, unsigned short value)
{
if (ioBase == MAP_FAILED)
return;
xf86WriteMmio16Le((void *) ioBase, port, value);
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}
static __inline__ void
outl(unsigned short port, unsigned int value)
{
if (ioBase == MAP_FAILED)
return;
xf86WriteMmio32Le((void *) ioBase, port, value);
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}
static __inline__ unsigned int
inb(unsigned short port)
{
if (ioBase == MAP_FAILED)
return 0;
return xf86ReadMmio8((void *) ioBase, port);
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}
static __inline__ unsigned int
inw(unsigned short port)
{
if (ioBase == MAP_FAILED)
return 0;
return xf86ReadMmio16Le((void *) ioBase, port);
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}
static __inline__ unsigned int
inl(unsigned short port)
{
if (ioBase == MAP_FAILED)
return 0;
return xf86ReadMmio32Le((void *) ioBase, port);
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}
#elif defined(__arm__) && defined(__linux__)
/* for Linux on ARM, we use the LIBC inx/outx routines */
/* note that the appropriate setup via "ioperm" needs to be done */
/* *before* any inx/outx is done. */
#include <sys/io.h>
static __inline__ void
xf_outb(unsigned short port, unsigned char val)
{
outb(val, port);
}
static __inline__ void
xf_outw(unsigned short port, unsigned short val)
{
outw(val, port);
}
static __inline__ void
xf_outl(unsigned short port, unsigned int val)
{
outl(val, port);
}
#define outb xf_outb
#define outw xf_outw
#define outl xf_outl
#elif defined(__nds32__)
/*
* Assume all port access are aligned. We need to revise this implementation
* if there is unaligned port access.
*/
#define PORT_SIZE long
static __inline__ unsigned char
xf86ReadMmio8(__volatile__ void *base, const unsigned long offset)
{
return *(volatile unsigned char *) ((unsigned char *) base + offset);
}
static __inline__ void
xf86WriteMmio8(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
*(volatile unsigned char *) ((unsigned char *) base + offset) = val;
barrier();
}
static __inline__ unsigned short
xf86ReadMmio16Swap(__volatile__ void *base, const unsigned long offset)
{
unsigned long addr = ((unsigned long) base) + offset;
unsigned short ret;
__asm__ __volatile__("lhi %0, [%1];\n\t" "wsbh %0, %0;\n\t":"=r"(ret)
:"r"(addr));
return ret;
}
static __inline__ unsigned short
xf86ReadMmio16(__volatile__ void *base, const unsigned long offset)
{
return *(volatile unsigned short *) ((char *) base + offset);
}
static __inline__ void
xf86WriteMmio16Swap(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
unsigned long addr = ((unsigned long) base) + offset;
__asm__ __volatile__("wsbh %0, %0;\n\t" "shi %0, [%1];\n\t": /* No outputs */
:"r"(val), "r"(addr));
barrier();
}
static __inline__ void
xf86WriteMmio16(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
*(volatile unsigned short *) ((unsigned char *) base + offset) = val;
barrier();
}
static __inline__ unsigned int
xf86ReadMmio32Swap(__volatile__ void *base, const unsigned long offset)
{
unsigned long addr = ((unsigned long) base) + offset;
unsigned int ret;
__asm__ __volatile__("lwi %0, [%1];\n\t"
"wsbh %0, %0;\n\t" "rotri %0, %0, 16;\n\t":"=r"(ret)
:"r"(addr));
return ret;
}
static __inline__ unsigned int
xf86ReadMmio32(__volatile__ void *base, const unsigned long offset)
{
return *(volatile unsigned int *) ((unsigned char *) base + offset);
}
static __inline__ void
xf86WriteMmio32Swap(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
unsigned long addr = ((unsigned long) base) + offset;
__asm__ __volatile__("wsbh %0, %0;\n\t" "rotri %0, %0, 16;\n\t" "swi %0, [%1];\n\t": /* No outputs */
:"r"(val), "r"(addr));
barrier();
}
static __inline__ void
xf86WriteMmio32(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
*(volatile unsigned int *) ((unsigned char *) base + offset) = val;
barrier();
}
#if defined(NDS32_MMIO_SWAP)
static __inline__ void
outb(unsigned PORT_SIZE port, unsigned char val)
{
xf86WriteMmio8(IOPortBase, port, val);
}
static __inline__ void
outw(unsigned PORT_SIZE port, unsigned short val)
{
xf86WriteMmio16Swap(IOPortBase, port, val);
}
static __inline__ void
outl(unsigned PORT_SIZE port, unsigned int val)
{
xf86WriteMmio32Swap(IOPortBase, port, val);
}
static __inline__ unsigned int
inb(unsigned PORT_SIZE port)
{
return xf86ReadMmio8(IOPortBase, port);
}
static __inline__ unsigned int
inw(unsigned PORT_SIZE port)
{
return xf86ReadMmio16Swap(IOPortBase, port);
}
static __inline__ unsigned int
inl(unsigned PORT_SIZE port)
{
return xf86ReadMmio32Swap(IOPortBase, port);
}
#else /* !NDS32_MMIO_SWAP */
static __inline__ void
outb(unsigned PORT_SIZE port, unsigned char val)
{
*(volatile unsigned char *) (((unsigned PORT_SIZE) (port))) = val;
barrier();
}
static __inline__ void
outw(unsigned PORT_SIZE port, unsigned short val)
{
*(volatile unsigned short *) (((unsigned PORT_SIZE) (port))) = val;
barrier();
}
static __inline__ void
outl(unsigned PORT_SIZE port, unsigned int val)
{
*(volatile unsigned int *) (((unsigned PORT_SIZE) (port))) = val;
barrier();
}
static __inline__ unsigned int
inb(unsigned PORT_SIZE port)
{
return *(volatile unsigned char *) (((unsigned PORT_SIZE) (port)));
}
static __inline__ unsigned int
inw(unsigned PORT_SIZE port)
{
return *(volatile unsigned short *) (((unsigned PORT_SIZE) (port)));
}
static __inline__ unsigned int
inl(unsigned PORT_SIZE port)
{
return *(volatile unsigned int *) (((unsigned PORT_SIZE) (port)));
}
#endif /* NDS32_MMIO_SWAP */
#elif defined(__i386__) || defined(__ia64__)
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static __inline__ void
outb(unsigned short port, unsigned char val)
{
__asm__ __volatile__("out%B0 (%1)"::"a"(val), "d"(port));
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}
static __inline__ void
outw(unsigned short port, unsigned short val)
{
__asm__ __volatile__("out%W0 (%1)"::"a"(val), "d"(port));
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}
static __inline__ void
outl(unsigned short port, unsigned int val)
{
__asm__ __volatile__("out%L0 (%1)"::"a"(val), "d"(port));
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}
static __inline__ unsigned int
inb(unsigned short port)
{
unsigned char ret;
__asm__ __volatile__("in%B0 (%1)":"=a"(ret):"d"(port));
return ret;
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}
static __inline__ unsigned int
inw(unsigned short port)
{
unsigned short ret;
__asm__ __volatile__("in%W0 (%1)":"=a"(ret):"d"(port));
return ret;
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}
static __inline__ unsigned int
inl(unsigned short port)
{
unsigned int ret;
__asm__ __volatile__("in%L0 (%1)":"=a"(ret):"d"(port));
return ret;
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}
#endif /* arch madness */
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#else /* !GNUC */
#if defined(__STDC__) && (__STDC__ == 1)
#ifndef asm
#define asm __asm
#endif
#endif
#if !defined(__SUNPRO_C)
#include <sys/inline.h>
#endif
#endif /* __GNUC__ */
#if !defined(MMIO_IS_BE) && \
(defined(SPARC_MMIO_IS_BE) || defined(PPC_MMIO_IS_BE))
#define MMIO_IS_BE
#endif
#ifdef __alpha__
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/* entry points for Mmio memory access routines */
extern _X_EXPORT int (*xf86ReadMmio8) (void *, unsigned long);
extern _X_EXPORT int (*xf86ReadMmio16) (void *, unsigned long);
#ifndef STANDALONE_MMIO
extern _X_EXPORT int (*xf86ReadMmio32) (void *, unsigned long);
#else
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/* Some DRI 3D drivers need MMIO_IN32. */
static __inline__ int
xf86ReadMmio32(void *Base, unsigned long Offset)
{
mem_barrier();
return *(volatile unsigned int *) ((unsigned long) Base + (Offset));
}
#endif
extern _X_EXPORT void (*xf86WriteMmio8) (int, void *, unsigned long);
extern _X_EXPORT void (*xf86WriteMmio16) (int, void *, unsigned long);
extern _X_EXPORT void (*xf86WriteMmio32) (int, void *, unsigned long);
extern _X_EXPORT void xf86SlowBCopyFromBus(unsigned char *, unsigned char *,
int);
extern _X_EXPORT void xf86SlowBCopyToBus(unsigned char *, unsigned char *, int);
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/* Some macros to hide the system dependencies for MMIO accesses */
/* Changed to kill noise generated by gcc's -Wcast-align */
#define MMIO_IN8(base, offset) (*xf86ReadMmio8)(base, offset)
#define MMIO_IN16(base, offset) (*xf86ReadMmio16)(base, offset)
#ifndef STANDALONE_MMIO
#define MMIO_IN32(base, offset) (*xf86ReadMmio32)(base, offset)
#else
#define MMIO_IN32(base, offset) xf86ReadMmio32(base, offset)
#endif
#define MMIO_OUT32(base, offset, val) \
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do { \
write_mem_barrier(); \
*(volatile CARD32 *)(void *)(((CARD8*)(base)) + (offset)) = (val); \
} while (0)
#define MMIO_OUT8(base, offset, val) \
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(*xf86WriteMmio8)((CARD8)(val), base, offset)
#define MMIO_OUT16(base, offset, val) \
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(*xf86WriteMmio16)((CARD16)(val), base, offset)
#elif defined(__powerpc__) || defined(__sparc__)
/*
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* we provide byteswapping and no byteswapping functions here
* with byteswapping as default,
* drivers that don't need byteswapping should define MMIO_IS_BE
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*/
#define MMIO_IN8(base, offset) xf86ReadMmio8(base, offset)
#define MMIO_OUT8(base, offset, val) \
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xf86WriteMmio8(base, offset, (CARD8)(val))
#if defined(MMIO_IS_BE) /* No byteswapping */
#define MMIO_IN16(base, offset) xf86ReadMmio16Be(base, offset)
#define MMIO_IN32(base, offset) xf86ReadMmio32Be(base, offset)
#define MMIO_OUT16(base, offset, val) \
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xf86WriteMmio16Be(base, offset, (CARD16)(val))
#define MMIO_OUT32(base, offset, val) \
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xf86WriteMmio32Be(base, offset, (CARD32)(val))
#else /* byteswapping is the default */
#define MMIO_IN16(base, offset) xf86ReadMmio16Le(base, offset)
#define MMIO_IN32(base, offset) xf86ReadMmio32Le(base, offset)
#define MMIO_OUT16(base, offset, val) \
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xf86WriteMmio16Le(base, offset, (CARD16)(val))
#define MMIO_OUT32(base, offset, val) \
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xf86WriteMmio32Le(base, offset, (CARD32)(val))
#endif
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#elif defined(__nds32__)
/*
* we provide byteswapping and no byteswapping functions here
* with no byteswapping as default; when endianness of CPU core
* and I/O devices don't match, byte swapping is necessary
* drivers that need byteswapping should define NDS32_MMIO_SWAP
*/
#define MMIO_IN8(base, offset) xf86ReadMmio8(base, offset)
#define MMIO_OUT8(base, offset, val) \
xf86WriteMmio8(base, offset, (CARD8)(val))
#if defined(NDS32_MMIO_SWAP) /* byteswapping */
#define MMIO_IN16(base, offset) xf86ReadMmio16Swap(base, offset)
#define MMIO_IN32(base, offset) xf86ReadMmio32Swap(base, offset)
#define MMIO_OUT16(base, offset, val) \
xf86WriteMmio16Swap(base, offset, (CARD16)(val))
#define MMIO_OUT32(base, offset, val) \
xf86WriteMmio32Swap(base, offset, (CARD32)(val))
#else /* no byteswapping is the default */
#define MMIO_IN16(base, offset) xf86ReadMmio16(base, offset)
#define MMIO_IN32(base, offset) xf86ReadMmio32(base, offset)
#define MMIO_OUT16(base, offset, val) \
xf86WriteMmio16(base, offset, (CARD16)(val))
#define MMIO_OUT32(base, offset, val) \
xf86WriteMmio32(base, offset, (CARD32)(val))
#endif
#else /* !__alpha__ && !__powerpc__ && !__sparc__ */
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#define MMIO_IN8(base, offset) \
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*(volatile CARD8 *)(((CARD8*)(base)) + (offset))
#define MMIO_IN16(base, offset) \
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*(volatile CARD16 *)(void *)(((CARD8*)(base)) + (offset))
#define MMIO_IN32(base, offset) \
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*(volatile CARD32 *)(void *)(((CARD8*)(base)) + (offset))
#define MMIO_OUT8(base, offset, val) \
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*(volatile CARD8 *)(((CARD8*)(base)) + (offset)) = (val)
#define MMIO_OUT16(base, offset, val) \
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*(volatile CARD16 *)(void *)(((CARD8*)(base)) + (offset)) = (val)
#define MMIO_OUT32(base, offset, val) \
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*(volatile CARD32 *)(void *)(((CARD8*)(base)) + (offset)) = (val)
#endif /* __alpha__ */
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/*
* With Intel, the version in os-support/misc/SlowBcopy.s is used.
* This avoids port I/O during the copy (which causes problems with
* some hardware).
*/
#ifdef __alpha__
#define slowbcopy_tobus(src,dst,count) xf86SlowBCopyToBus(src,dst,count)
#define slowbcopy_frombus(src,dst,count) xf86SlowBCopyFromBus(src,dst,count)
#else /* __alpha__ */
#define slowbcopy_tobus(src,dst,count) xf86SlowBcopy(src,dst,count)
#define slowbcopy_frombus(src,dst,count) xf86SlowBcopy(src,dst,count)
#endif /* __alpha__ */
#endif /* _COMPILER_H */