The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/ofw/ofw_pci.h

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    1 /*-
    2  * Copyright (c) 1999 The NetBSD Foundation, Inc.
    3  * All rights reserved.
    4  *
    5  * This code is derived from software contributed to The NetBSD Foundation
    6  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
    7  * NASA Ames Research Center.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  * 3. All advertising materials mentioning features or use of this software
   18  *    must display the following acknowledgement:
   19  *      This product includes software developed by the NetBSD
   20  *      Foundation, Inc. and its contributors.
   21  * 4. Neither the name of The NetBSD Foundation nor the names of its
   22  *    contributors may be used to endorse or promote products derived
   23  *    from this software without specific prior written permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   26  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   35  * POSSIBILITY OF SUCH DAMAGE.
   36  *
   37  *      from: NetBSD: ofw_pci.h,v 1.3 2001/02/16 14:16:30 mrg Exp
   38  *
   39  * $FreeBSD: src/sys/dev/ofw/ofw_pci.h,v 1.1 2001/11/18 20:38:43 tmm Exp $
   40  */
   41 
   42 #ifndef _DEV_OFW_OFW_PCI_H_
   43 #define _DEV_OFW_OFW_PCI_H_
   44 
   45 /*
   46  * PCI Bus Binding to:
   47  *
   48  * IEEE Std 1275-1994
   49  * Standard for Boot (Initialization Configuration) Firmware
   50  *
   51  * Revision 2.1
   52  */
   53 
   54 /*
   55  * Section 2.2.1. Physical Address Formats
   56  *
   57  * A PCI physical address is represented by 3 address cells:
   58  *
   59  *      phys.hi cell:   npt000ss bbbbbbbb dddddfff rrrrrrrr
   60  *      phys.mid cell:  hhhhhhhh hhhhhhhh hhhhhhhh hhhhhhhh
   61  *      phys.lo cell:   llllllll llllllll llllllll llllllll
   62  *
   63  *      n       nonrelocatable
   64  *      p       prefectable
   65  *      t       aliased below 1MB (memory) or 64k (i/o)
   66  *      ss      space code
   67  *      b       bus number
   68  *      d       device number
   69  *      f       function number
   70  *      r       register number
   71  *      h       high 32-bits of PCI address
   72  *      l       low 32-bits of PCI address
   73  */
   74 
   75 #define OFW_PCI_PHYS_HI_NONRELOCATABLE  0x80000000
   76 #define OFW_PCI_PHYS_HI_PREFETCHABLE    0x40000000
   77 #define OFW_PCI_PHYS_HI_ALIASED         0x20000000
   78 #define OFW_PCI_PHYS_HI_SPACEMASK       0x03000000
   79 #define OFW_PCI_PHYS_HI_BUSMASK         0x00ff0000
   80 #define OFW_PCI_PHYS_HI_BUSSHIFT        16
   81 #define OFW_PCI_PHYS_HI_DEVICEMASK      0x0000f800
   82 #define OFW_PCI_PHYS_HI_DEVICESHIFT     11
   83 #define OFW_PCI_PHYS_HI_FUNCTIONMASK    0x00000700
   84 #define OFW_PCI_PHYS_HI_FUNCTIONSHIFT   8
   85 #define OFW_PCI_PHYS_HI_REGISTERMASK    0x000000ff
   86 
   87 #define OFW_PCI_PHYS_HI_SPACE_CONFIG    0x00000000
   88 #define OFW_PCI_PHYS_HI_SPACE_IO        0x01000000
   89 #define OFW_PCI_PHYS_HI_SPACE_MEM32     0x02000000
   90 #define OFW_PCI_PHYS_HI_SPACE_MEM64     0x03000000
   91 
   92 #define OFW_PCI_PHYS_HI_BUS(hi) \
   93         (((hi) & OFW_PCI_PHYS_HI_BUSMASK) >> OFW_PCI_PHYS_HI_BUSSHIFT)
   94 #define OFW_PCI_PHYS_HI_DEVICE(hi) \
   95         (((hi) & OFW_PCI_PHYS_HI_DEVICEMASK) >> OFW_PCI_PHYS_HI_DEVICESHIFT)
   96 #define OFW_PCI_PHYS_HI_FUNCTION(hi) \
   97         (((hi) & OFW_PCI_PHYS_HI_FUNCTIONMASK) >> OFW_PCI_PHYS_HI_FUNCTIONSHIFT)
   98 
   99 /*
  100  * This has the 3 32bit cell values, plus 2 more to make up a 64-bit size.
  101  */
  102 struct ofw_pci_register {
  103         u_int32_t       phys_hi;
  104         u_int32_t       phys_mid;
  105         u_int32_t       phys_lo;
  106         u_int32_t       size_hi;
  107         u_int32_t       size_lo;
  108 };
  109 
  110 #endif /* _DEV_OFW_OFW_PCI_H_ */

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