sys/arch/powerpc/include/oea/sr_601.h

   1 /*      $NetBSD: sr_601.h,v 1.4 2007/04/09 17:35:14 garbled Exp $       */
   2
   3 /*-
   4  * Copyright (c) 2002, 2004 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Klaus J. Klein.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _POWERPC_OEA_SR_601_H_
  33 #define _POWERPC_OEA_SR_601_H_
  34
  35 /*
  36  * I/O Controller Interface Address Translation segment register
  37  * format specific to the PowerPC 601, per PowerPC 601 RISC
  38  * Microprocessor User's Manual, section 6.10.1.
  39  *
  40  * This format applies to a segment register only when its T bit is set.
  41  */
  42
  43 #define SR601_T         0x80000000      /* Selects this format */
  44 #define SR601_Ks        0x40000000      /* Key-supervisor */
  45 #define SR601_Ku        0x20000000      /* Key-user */
  46 #define SR601_BUID      0x1ff00000      /* Bus unit ID */
  47 #define SR601_BUID_SHFT 20
  48 #define SR601_CSI       0x000ffff0      /* Controller Specific Information */
  49 #define SR601_CSI_SHFT  4
  50 #define SR601_PACKET1   0x0000000f      /* Address bits 0:3 of packet 1 cycle */
  51
  52 #define SR601_BUID_MEMFORCED    0x07f   /* Translate to memory access, taking
  53                                            PA[0:3] from the PACKET1 field */
  54
  55 #define SR601(key, buid, csi, p1)                               \
  56         (SR601_T |                                              \
  57          (key) |                                                \
  58          (buid) << SR601_BUID_SHFT |                            \
  59          (csi) << SR601_CSI_SHFT | (p1))
  60
  61 #define SR601_VALID_P(sr)                                       \
  62         ((sr) & SR601_T)
  63
  64 #define SR601_PA_MATCH_P(sr, pa)                                \
  65          (((sr) & SR601_PACKET1) == ((pa) >> ADDR_SR_SHFT))
  66
  67 #ifdef _KERNEL
  68 void mpc601_ioseg_add(paddr_t, register_t);
  69 #endif
  70
  71 #endif /* !_POWERPC_OEA_SR_601_H_ */