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/* $NetBSD: cpuconf.h,v 1.5 2016/10/08 20:30:54 joerg Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)param.h 8.1 (Berkeley) 6/11/93
*/
/*
* Sun4M support by Aaron Brown, Harvard University.
* Changes Copyright (c) 1995 The President and Fellows of Harvard College.
* All rights reserved.
*/
#ifndef _SPARC_CPUCONF_H_
#define _SPARC_CPUCONF_H_
/*
* Values for the cputyp variable.
*/
#define CPU_SUN4 0
#define CPU_SUN4C 1
#define CPU_SUN4M 2
#define CPU_SUN4U 3
#define CPU_SUN4D 4
#if defined(_KERNEL) || defined(_STANDALONE)
#if defined(_KERNEL_OPT)
#include "opt_sparc_arch.h"
#endif /* _KERNEL_OPT */
#ifndef _LOCORE
extern int cputyp;
#endif
/*
* Shorthand CPU-type macros. Let the compiler optimize away code
* conditional on constants.
*/
/*
* Step 1: Count the number of CPU types configured into the kernel.
*/
#if defined(_KERNEL_OPT)
#ifdef SUN4
#define _CPU_NTYPES_SUN4 1
#else
#define _CPU_NTYPES_SUN4 0
#endif
#ifdef SUN4C
#define _CPU_NTYPES_SUN4C 1
#else
#define _CPU_NTYPES_SUN4C 0
#endif
#ifdef SUN4M
#define _CPU_NTYPES_SUN4M 1
#else
#define _CPU_NTYPES_SUN4M 0
#endif
#ifdef SUN4D
#define _CPU_NTYPES_SUN4D 1
#else
#define _CPU_NTYPES_SUN4D 0
#endif
#define CPU_NTYPES (_CPU_NTYPES_SUN4 + _CPU_NTYPES_SUN4C + \
_CPU_NTYPES_SUN4M + _CPU_NTYPES_SUN4D)
#else
#define CPU_NTYPES 0
#endif
/*
* Step 2: Define the CPU type predicates. Rules:
*
* * If multiple CPU types are configured in, and the CPU type
* is not one of them, then the test is always false.
*
* * If exactly one CPU type is configured in, and it's this
* one, then the test is always true.
*
* * Otherwise, we have to reference the cputyp variable.
*/
#if CPU_NTYPES != 0 && !defined(SUN4)
# define CPU_ISSUN4 (0)
#elif CPU_NTYPES == 1 && defined(SUN4)
# define CPU_ISSUN4 (1)
#else
# define CPU_ISSUN4 (cputyp == CPU_SUN4)
#endif
#if CPU_NTYPES != 0 && !defined(SUN4C)
# define CPU_ISSUN4C (0)
#elif CPU_NTYPES == 1 && defined(SUN4C)
# define CPU_ISSUN4C (1)
#else
# define CPU_ISSUN4C (cputyp == CPU_SUN4C)
#endif
#if CPU_NTYPES != 0 && !defined(SUN4M)
# define CPU_ISSUN4M (0)
#elif CPU_NTYPES == 1 && defined(SUN4M)
# define CPU_ISSUN4M (1)
#else
# define CPU_ISSUN4M (cputyp == CPU_SUN4M)
#endif
#if CPU_NTYPES != 0 && !defined(SUN4D)
# define CPU_ISSUN4D (0)
#elif CPU_NTYPES == 1 && defined(SUN4D)
# define CPU_ISSUN4D (1)
#else
# define CPU_ISSUN4D (cputyp == CPU_SUN4D)
#endif
#define CPU_ISSUN4U (0)
/*
* Step 3: Define some short-hand for the different MMUs.
*/
#define CPU_HAS_SRMMU (CPU_ISSUN4M || CPU_ISSUN4D)
#define CPU_HAS_SUNMMU (CPU_ISSUN4 || CPU_ISSUN4C)
#endif /* _KERNEL || _STANDALONE */
#endif /* _SPARC_CPUCONF_H_ */
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