xserver-multidpi/hw/xfree86/os-support/bus/Pci.h
Adam Jackson 858fbbb40d pci: Port xf86MapLegacyIO to pciaccess
Per-domain I/O is now something drivers must manually request, and must
keep track of within their own state rather than in the ScrnInfoRec.
It's not really possible to split that into two steps without an
additional intermediate ABI break, so don't even try.  Drivers that want
source compatibility should ifdef on the presence of xf86UnmapLegacyIO.

As a fringe benefit, domain-aware I/O is now OS-independent, relying
only on support in pciaccess.  Simplify OS PCI setup to reflect this.

The IOADDRESS type is kept around to help drivers through the API
transition and will be removed at some point in the future.

Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Tested-by: Jeremy Huddleston <jeremyhu@apple.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
2011-10-15 21:18:46 -07:00

151 lines
6.5 KiB
C

/*
* Copyright 1998 by Concurrent Computer Corporation
*
* 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 Concurrent Computer
* Corporation not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Concurrent Computer Corporation makes no representations
* about the suitability of this software for any purpose. It is
* provided "as is" without express or implied warranty.
*
* CONCURRENT COMPUTER CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CONCURRENT COMPUTER CORPORATION 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 1998 by Metro Link Incorporated
*
* 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 Metro Link
* Incorporated not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Metro Link Incorporated makes no representations
* about the suitability of this software for any purpose. It is
* provided "as is" without express or implied warranty.
*
* METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED 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.
*
* This file is derived in part from the original xf86_PCI.h that included
* following copyright message:
*
* Copyright 1995 by Robin Cutshaw <robin@XFree86.Org>
*
* 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 names of the above listed copyright holder(s)
* not be used in advertising or publicity pertaining to distribution of
* the software without specific, written prior permission. The above listed
* copyright holder(s) make(s) no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) 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) 1999-2003 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).
*/
/*
* This file has the private Pci definitions. The public ones are imported
* from xf86Pci.h. Drivers should not use this file.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#ifndef _PCI_H
#define _PCI_H 1
#include "xf86Pci.h"
#include "xf86PciInfo.h"
/*
* Global Definitions
*/
#if (defined(__alpha__) || defined(__ia64__)) && defined (linux)
#define PCI_DOM_MASK 0x01fful
#else
#define PCI_DOM_MASK 0x0ffu
#endif
#ifndef PCI_DOM_MASK
# define PCI_DOM_MASK 0x0ffu
#endif
#define PCI_DOMBUS_MASK (((PCI_DOM_MASK) << 8) | 0x0ffu)
/*
* "b" contains an optional domain number.
*/
#define PCI_MAKE_TAG(b,d,f) ((((b) & (PCI_DOMBUS_MASK)) << 16) | \
(((d) & 0x00001fu) << 11) | \
(((f) & 0x000007u) << 8))
#define PCI_MAKE_BUS(d,b) ((((d) & (PCI_DOM_MASK)) << 8) | ((b) & 0xffu))
#define PCI_DOM_FROM_BUS(bus) (((bus) >> 8) & (PCI_DOM_MASK))
#define PCI_BUS_NO_DOMAIN(bus) ((bus) & 0xffu)
#define PCI_TAG_NO_DOMAIN(tag) ((tag) & 0x00ffff00u)
#if defined(linux)
#define osPciInit(x) do {} while (0)
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
defined(__OpenBSD__) || defined(__NetBSD__) || \
defined(__DragonFly__) || defined(__sun) || defined(__GNU__)
extern void osPciInit(void);
#else
#error No PCI support available for this architecture/OS combination
#endif
#endif /* _PCI_H */