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Annotation of sys/dev/ofw/ofw_pci.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: ofw_pci.h,v 1.3 2004/10/01 04:08:45 jsg Exp $ */
        !             2: /*     $NetBSD: ofw_pci.h,v 1.4 2001/02/17 16:28:37 mrg Exp $  */
        !             3:
        !             4: /*-
        !             5:  * Copyright (c) 1999 The NetBSD Foundation, Inc.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * This code is derived from software contributed to The NetBSD Foundation
        !             9:  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
        !            10:  * NASA Ames Research Center.
        !            11:  *
        !            12:  * Redistribution and use in source and binary forms, with or without
        !            13:  * modification, are permitted provided that the following conditions
        !            14:  * are met:
        !            15:  * 1. Redistributions of source code must retain the above copyright
        !            16:  *    notice, this list of conditions and the following disclaimer.
        !            17:  * 2. Redistributions in binary form must reproduce the above copyright
        !            18:  *    notice, this list of conditions and the following disclaimer in the
        !            19:  *    documentation and/or other materials provided with the distribution.
        !            20:  * 3. All advertising materials mentioning features or use of this software
        !            21:  *    must display the following acknowledgement:
        !            22:  *     This product includes software developed by the NetBSD
        !            23:  *     Foundation, Inc. and its contributors.
        !            24:  * 4. Neither the name of The NetBSD Foundation nor the names of its
        !            25:  *    contributors may be used to endorse or promote products derived
        !            26:  *    from this software without specific prior written permission.
        !            27:  *
        !            28:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
        !            29:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
        !            30:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
        !            31:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
        !            32:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
        !            33:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
        !            34:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        !            35:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        !            36:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        !            37:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            38:  * POSSIBILITY OF SUCH DAMAGE.
        !            39:  */
        !            40:
        !            41: #ifndef _DEV_OFW_OFW_PCI_H_
        !            42: #define        _DEV_OFW_OFW_PCI_H_
        !            43:
        !            44: /*
        !            45:  * PCI Bus Binding to:
        !            46:  *
        !            47:  * IEEE Std 1275-1994
        !            48:  * Standard for Boot (Initialization Configuration) Firmware
        !            49:  *
        !            50:  * Revision 2.1
        !            51:  */
        !            52:
        !            53: /*
        !            54:  * Section 2.2.1. Physical Address Formats
        !            55:  *
        !            56:  * A PCI physical address is represented by 3 address cells:
        !            57:  *
        !            58:  *     phys.hi cell:   npt000ss bbbbbbbb dddddfff rrrrrrrr
        !            59:  *     phys.mid cell:  hhhhhhhh hhhhhhhh hhhhhhhh hhhhhhhh
        !            60:  *     phys.lo cell:   llllllll llllllll llllllll llllllll
        !            61:  *
        !            62:  *     n       nonrelocatable
        !            63:  *     p       prefetchable
        !            64:  *     t       aliased below 1MB (memory) or 64k (i/o)
        !            65:  *     ss      space code
        !            66:  *     b       bus number
        !            67:  *     d       device number
        !            68:  *     f       function number
        !            69:  *     r       register number
        !            70:  *     h       high 32-bits of PCI address
        !            71:  *     l       low 32-bits of PCI address
        !            72:  */
        !            73:
        !            74: #define        OFW_PCI_PHYS_HI_NONRELOCATABLE  0x80000000
        !            75: #define        OFW_PCI_PHYS_HI_PREFETCHABLE    0x40000000
        !            76: #define        OFW_PCI_PHYS_HI_ALIASED         0x20000000
        !            77: #define        OFW_PCI_PHYS_HI_SPACEMASK       0x03000000
        !            78: #define        OFW_PCI_PHYS_HI_BUSMASK         0x00ff0000
        !            79: #define        OFW_PCI_PHYS_HI_BUSSHIFT        16
        !            80: #define        OFW_PCI_PHYS_HI_DEVICEMASK      0x0000f800
        !            81: #define        OFW_PCI_PHYS_HI_DEVICESHIFT     11
        !            82: #define        OFW_PCI_PHYS_HI_FUNCTIONMASK    0x00000700
        !            83: #define        OFW_PCI_PHYS_HI_FUNCTIONSHIFT   8
        !            84: #define        OFW_PCI_PHYS_HI_REGISTERMASK    0x000000ff
        !            85:
        !            86: #define        OFW_PCI_PHYS_HI_SPACE_CONFIG    0x00000000
        !            87: #define        OFW_PCI_PHYS_HI_SPACE_IO        0x01000000
        !            88: #define        OFW_PCI_PHYS_HI_SPACE_MEM32     0x02000000
        !            89: #define        OFW_PCI_PHYS_HI_SPACE_MEM64     0x03000000
        !            90:
        !            91: #define OFW_PCI_PHYS_HI_BUS(hi) \
        !            92:        (((hi) & OFW_PCI_PHYS_HI_BUSMASK) >> OFW_PCI_PHYS_HI_BUSSHIFT)
        !            93: #define OFW_PCI_PHYS_HI_DEVICE(hi) \
        !            94:        (((hi) & OFW_PCI_PHYS_HI_DEVICEMASK) >> OFW_PCI_PHYS_HI_DEVICESHIFT)
        !            95: #define OFW_PCI_PHYS_HI_FUNCTION(hi) \
        !            96:        (((hi) & OFW_PCI_PHYS_HI_FUNCTIONMASK) >> OFW_PCI_PHYS_HI_FUNCTIONSHIFT)
        !            97:
        !            98: /*
        !            99:  * This has the 3 32bit cell values, plus 2 more to make up a 64-bit size.
        !           100:  */
        !           101: struct ofw_pci_register {
        !           102:        u_int32_t       phys_hi;
        !           103:        u_int32_t       phys_mid;
        !           104:        u_int32_t       phys_lo;
        !           105:        u_int32_t       size_hi;
        !           106:        u_int32_t       size_lo;
        !           107: };
        !           108:
        !           109: #endif /* _DEV_OFW_OFW_PCI_H_ */