/*      $NetBSD: sr_601.h,v 1.6 2021/02/27 01:16:52 thorpej Exp $       */

/*-
* Copyright (c) 2002, 2004 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Klaus J. Klein.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _POWERPC_OEA_SR_601_H_
#define _POWERPC_OEA_SR_601_H_

/*
* I/O Controller Interface Address Translation segment register
* format specific to the PowerPC 601, per PowerPC 601 RISC
* Microprocessor User's Manual, section 6.10.1.
*
* This format applies to a segment register only when its T bit is set.
*/

#define SR601_T         0x80000000      /* Selects this format */
#define SR601_Ks        0x40000000      /* Key-supervisor */
#define SR601_Ku        0x20000000      /* Key-user */
#define SR601_BUID      0x1ff00000      /* Bus unit ID */
#define SR601_BUID_SHFT 20
#define SR601_CSI       0x000ffff0      /* Controller Specific Information */
#define SR601_CSI_SHFT  4
#define SR601_PACKET1   0x0000000f      /* Address bits 0:3 of packet 1 cycle */

#define SR601_BUID_MEMFORCED    0x07f   /* Translate to memory access, taking
                                          PA[0:3] from the PACKET1 field */

#define SR601(key, buid, csi, p1)                               \
       (SR601_T |                                              \
        (key) |                                                \
        (buid) << SR601_BUID_SHFT |                            \
        (csi) << SR601_CSI_SHFT | (p1))

#define SR601_VALID_P(sr)                                       \
       ((sr) & SR601_T)

#define SR601_PA_MATCH_P(sr, pa)                                \
        (((sr) & SR601_PACKET1) == ((pa) >> ADDR_SR_SHFT))

#endif /* !_POWERPC_OEA_SR_601_H_ */