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xserver-multidpi/hw/xfree86/common/compiler.h
Adam Jackson 47b00fa4bf xfree86: Use same inb/outb asm code for i386 amd64 and ia64 
This matches the GCCUSESGAS path from the old monolith build (where that
macro was actually set), and fixes the build on modern OSX.

Reviewed-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2015-10-26 11:24:22 -04:00

1101 lines
32 KiB
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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
#if defined(__SUNPRO_C)
#define DO_PROTOTYPES
#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 */
/* Allow drivers to use the GCC-supported __inline__ and/or __inline. */
#ifndef __inline__
#if defined(__GNUC__)
/* gcc has __inline__ */
#else
#define __inline__ /**/
#endif
#endif /* __inline__ */
#ifndef __inline
#if defined(__GNUC__)
/* 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__) \
&& !(defined(__alpha__) && defined(linux)) \
&& !(defined(__ia64__) && defined(linux)) \
&& !(defined(__mips64) && defined(linux)) \
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);
#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);
#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__ */
#endif /* NO_INLINE || DO_PROTOTYPES */
#ifdef __GNUC__
#ifdef __i386__
#ifdef __SSE__
#define write_mem_barrier() __asm__ __volatile__ ("sfence" : : : "memory")
#else
#define write_mem_barrier() __asm__ __volatile__ ("lock; addl $0,0(%%esp)" : : : "memory")
#endif
#ifdef __SSE2__
#define mem_barrier() __asm__ __volatile__ ("mfence" : : : "memory")
#else
#define mem_barrier() __asm__ __volatile__ ("lock; addl $0,0(%%esp)" : : : "memory")
#endif
#elif defined __alpha__
#define mem_barrier() __asm__ __volatile__ ("mb" : : : "memory")
#define write_mem_barrier() __asm__ __volatile__ ("wmb" : : : "memory")
#elif defined __amd64__
#define mem_barrier() __asm__ __volatile__ ("mfence" : : : "memory")
#define write_mem_barrier() __asm__ __volatile__ ("sfence" : : : "memory")
#elif defined __ia64__
#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
#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()
#elif defined __powerpc__
#ifndef eieio
#define eieio() __asm__ __volatile__ ("eieio" ::: "memory")
#endif /* eieio */
#define mem_barrier() eieio()
#define write_mem_barrier() eieio()
#elif defined __sparc__
#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
#ifndef mem_barrier
#define mem_barrier() /* NOP */
#endif
#ifndef write_mem_barrier
#define write_mem_barrier() /* NOP */
#endif
#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);
static __inline__ void
outb(unsigned long port, unsigned char val)
{
_outb(val, port);
}
static __inline__ void
outw(unsigned long port, unsigned short val)
{
_outw(val, port);
}
static __inline__ void
outl(unsigned long port, unsigned int val)
{
_outl(val, port);
}
static __inline__ unsigned int
inb(unsigned long port)
{
return _inb(port);
}
static __inline__ unsigned int
inw(unsigned long port)
{
return _inw(port);
}
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__) || defined(__i386__) || defined(__ia64__)
#include <inttypes.h>
static __inline__ void
outb(unsigned short port, unsigned char val)
{
__asm__ __volatile__("outb %0,%1"::"a"(val), "d"(port));
}
static __inline__ void
outw(unsigned short port, unsigned short val)
{
__asm__ __volatile__("outw %0,%1"::"a"(val), "d"(port));
}
static __inline__ void
outl(unsigned short port, unsigned int val)
{
__asm__ __volatile__("outl %0,%1"::"a"(val), "d"(port));
}
static __inline__ unsigned int
inb(unsigned short port)
{
unsigned char ret;
__asm__ __volatile__("inb %1,%0":"=a"(ret):"d"(port));
return ret;
}
static __inline__ unsigned int
inw(unsigned short port)
{
unsigned short ret;
__asm__ __volatile__("inw %1,%0":"=a"(ret):"d"(port));
return ret;
}
static __inline__ unsigned int
inl(unsigned short port)
{
unsigned int ret;
__asm__ __volatile__("inl %1,%0":"=a"(ret):"d"(port));
return ret;
}
#elif defined(__sparc__)
#ifndef ASI_PL
#define ASI_PL 0x88
#endif
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();
}
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();
}
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();
}
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;
}
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;
}
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;
}
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));
return ret;
}
static __inline__ unsigned short
xf86ReadMmio16Be(__volatile__ void *base, const unsigned long offset)
{
unsigned long addr = ((unsigned long) base) + offset;
unsigned short ret;
__asm__ __volatile__("lduh [%1], %0":"=r"(ret)
:"r"(addr));
return ret;
}
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));
return ret;
}
static __inline__ unsigned int
xf86ReadMmio32Be(__volatile__ void *base, const unsigned long offset)
{
unsigned long addr = ((unsigned long) base) + offset;
unsigned int ret;
__asm__ __volatile__("ld [%1], %0":"=r"(ret)
:"r"(addr));
return ret;
}
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));
return ret;
}
static __inline__ void
xf86WriteMmio8(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
unsigned long addr = ((unsigned long) base) + offset;
__asm__ __volatile__("stba %0, [%1] %2": /* No outputs */
:"r"(val), "r"(addr), "i"(ASI_PL));
barrier();
}
static __inline__ void
xf86WriteMmio16Be(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
unsigned long addr = ((unsigned long) base) + offset;
__asm__ __volatile__("sth %0, [%1]": /* No outputs */
:"r"(val), "r"(addr));
barrier();
}
static __inline__ void
xf86WriteMmio16Le(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
unsigned long addr = ((unsigned long) base) + offset;
__asm__ __volatile__("stha %0, [%1] %2": /* No outputs */
:"r"(val), "r"(addr), "i"(ASI_PL));
barrier();
}
static __inline__ void
xf86WriteMmio32Be(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
unsigned long addr = ((unsigned long) base) + offset;
__asm__ __volatile__("st %0, [%1]": /* No outputs */
:"r"(val), "r"(addr));
barrier();
}
static __inline__ void
xf86WriteMmio32Le(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
unsigned long addr = ((unsigned long) base) + offset;
__asm__ __volatile__("sta %0, [%1] %2": /* No outputs */
:"r"(val), "r"(addr), "i"(ASI_PL));
barrier();
}
#elif defined(__mips__) || (defined(__arm32__) && !defined(__linux__))
#if defined(__arm32__) || defined(__mips64)
#define PORT_SIZE long
#else
#define PORT_SIZE short
#endif
_X_EXPORT unsigned int IOPortBase; /* Memory mapped I/O port area */
static __inline__ void
outb(unsigned PORT_SIZE port, unsigned char val)
{
*(volatile unsigned char *) (((unsigned PORT_SIZE) (port)) + IOPortBase) =
val;
}
static __inline__ void
outw(unsigned PORT_SIZE port, unsigned short val)
{
*(volatile unsigned short *) (((unsigned PORT_SIZE) (port)) + IOPortBase) =
val;
}
static __inline__ void
outl(unsigned PORT_SIZE port, unsigned int val)
{
*(volatile unsigned int *) (((unsigned PORT_SIZE) (port)) + IOPortBase) =
val;
}
static __inline__ unsigned int
inb(unsigned PORT_SIZE port)
{
return *(volatile unsigned char *) (((unsigned PORT_SIZE) (port)) +
IOPortBase);
}
static __inline__ unsigned int
inw(unsigned PORT_SIZE port)
{
return *(volatile unsigned short *) (((unsigned PORT_SIZE) (port)) +
IOPortBase);
}
static __inline__ unsigned int
inl(unsigned PORT_SIZE port)
{
return *(volatile unsigned int *) (((unsigned PORT_SIZE) (port)) +
IOPortBase);
}
#if defined(__mips__)
#ifdef linux /* don't mess with other OSs */
#if X_BYTE_ORDER == X_BIG_ENDIAN
static __inline__ unsigned int
xf86ReadMmio32Be(__volatile__ void *base, const unsigned long offset)
{
unsigned long addr = ((unsigned long) base) + offset;
unsigned int ret;
__asm__ __volatile__("lw %0, 0(%1)":"=r"(ret)
:"r"(addr));
return ret;
}
static __inline__ void
xf86WriteMmio32Be(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
unsigned long addr = ((unsigned long) base) + offset;
__asm__ __volatile__("sw %0, 0(%1)": /* No outputs */
:"r"(val), "r"(addr));
}
#endif
#endif /* !linux */
#endif /* __mips__ */
#elif defined(__powerpc__)
#ifndef MAP_FAILED
#define MAP_FAILED ((void *)-1)
#endif
extern _X_EXPORT volatile unsigned char *ioBase;
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;
}
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;
}
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;
}
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;
}
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;
}
static __inline__ void
xf86WriteMmio8(__volatile__ void *base, const unsigned long offset,
const unsigned char val)
{
__asm__
__volatile__("stbx %1,%2,%3\n\t":"=m"
(*((volatile unsigned char *) base + offset))
:"r"(val), "b"(base), "r"(offset));
eieio();
}
static __inline__ void
xf86WriteMmio16Le(__volatile__ void *base, const unsigned long offset,
const unsigned short val)
{
__asm__
__volatile__("sthbrx %1,%2,%3\n\t":"=m"
(*((volatile unsigned char *) base + offset))
:"r"(val), "b"(base), "r"(offset));
eieio();
}
static __inline__ void
xf86WriteMmio16Be(__volatile__ void *base, const unsigned long offset,
const unsigned short val)
{
__asm__
__volatile__("sthx %1,%2,%3\n\t":"=m"
(*((volatile unsigned char *) base + offset))
:"r"(val), "b"(base), "r"(offset));
eieio();
}
static __inline__ void
xf86WriteMmio32Le(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
__asm__
__volatile__("stwbrx %1,%2,%3\n\t":"=m"
(*((volatile unsigned char *) base + offset))
:"r"(val), "b"(base), "r"(offset));
eieio();
}
static __inline__ void
xf86WriteMmio32Be(__volatile__ void *base, const unsigned long offset,
const unsigned int val)
{
__asm__
__volatile__("stwx %1,%2,%3\n\t":"=m"
(*((volatile unsigned char *) base + offset))
:"r"(val), "b"(base), "r"(offset));
eieio();
}
static __inline__ void
outb(unsigned short port, unsigned char value)
{
if (ioBase == MAP_FAILED)
return;
xf86WriteMmio8((void *) ioBase, port, value);
}
static __inline__ void
outw(unsigned short port, unsigned short value)
{
if (ioBase == MAP_FAILED)
return;
xf86WriteMmio16Le((void *) ioBase, port, value);
}
static __inline__ void
outl(unsigned short port, unsigned int value)
{
if (ioBase == MAP_FAILED)
return;
xf86WriteMmio32Le((void *) ioBase, port, value);
}
static __inline__ unsigned int
inb(unsigned short port)
{
if (ioBase == MAP_FAILED)
return 0;
return xf86ReadMmio8((void *) ioBase, port);
}
static __inline__ unsigned int
inw(unsigned short port)
{
if (ioBase == MAP_FAILED)
return 0;
return xf86ReadMmio16Le((void *) ioBase, port);
}
static __inline__ unsigned int
inl(unsigned short port)
{
if (ioBase == MAP_FAILED)
return 0;
return xf86ReadMmio32Le((void *) ioBase, port);
}
#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 */
#endif /* arch madness */
#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__
/* entry points for Mmio memory access routines */
extern _X_EXPORT int (*xf86ReadMmio8) (void *, unsigned long);
extern _X_EXPORT int (*xf86ReadMmio16) (void *, unsigned long);
extern _X_EXPORT int (*xf86ReadMmio32) (void *, unsigned long);
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);
/* 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)
#define MMIO_IN32(base, offset) (*xf86ReadMmio32)(base, offset)
#define MMIO_OUT32(base, offset, val) \
do { \
write_mem_barrier(); \
*(volatile CARD32 *)(void *)(((CARD8*)(base)) + (offset)) = (val); \
} while (0)
#define MMIO_OUT8(base, offset, val) \
(*xf86WriteMmio8)((CARD8)(val), base, offset)
#define MMIO_OUT16(base, offset, val) \
(*xf86WriteMmio16)((CARD16)(val), base, offset)
#elif defined(__powerpc__) || defined(__sparc__)
/*
* we provide byteswapping and no byteswapping functions here
* with byteswapping as default,
* drivers that don't need byteswapping should define MMIO_IS_BE
*/
#define MMIO_IN8(base, offset) xf86ReadMmio8(base, offset)
#define MMIO_OUT8(base, offset, val) \
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) \
xf86WriteMmio16Be(base, offset, (CARD16)(val))
#define MMIO_OUT32(base, offset, val) \
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) \
xf86WriteMmio16Le(base, offset, (CARD16)(val))
#define MMIO_OUT32(base, offset, val) \
xf86WriteMmio32Le(base, offset, (CARD32)(val))
#endif
#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__ */
#define MMIO_IN8(base, offset) \
*(volatile CARD8 *)(((CARD8*)(base)) + (offset))
#define MMIO_IN16(base, offset) \
*(volatile CARD16 *)(void *)(((CARD8*)(base)) + (offset))
#define MMIO_IN32(base, offset) \
*(volatile CARD32 *)(void *)(((CARD8*)(base)) + (offset))
#define MMIO_OUT8(base, offset, val) \
*(volatile CARD8 *)(((CARD8*)(base)) + (offset)) = (val)
#define MMIO_OUT16(base, offset, val) \
*(volatile CARD16 *)(void *)(((CARD8*)(base)) + (offset)) = (val)
#define MMIO_OUT32(base, offset, val) \
*(volatile CARD32 *)(void *)(((CARD8*)(base)) + (offset)) = (val)
#endif /* __alpha__ */
/*
* 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 */
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