cpuconf.h

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    1 /*      $NetBSD: cpuconf.h,v 1.8 2003/09/06 08:55:42 rearnsha Exp $     */
    2 
    3 /*-
    4  * Copyright (c) 2002 Wasabi Systems, Inc.
    5  * All rights reserved.
    6  *
    7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
    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 for the NetBSD Project by
   20  *      Wasabi Systems, Inc.
   21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
   22  *    or promote products derived from this software without specific prior
   23  *    written permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
   26  * 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 WASABI SYSTEMS, INC
   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  * $FreeBSD: releng/11.0/sys/arm/include/cpuconf.h 295200 2016-02-03 09:15:44Z mmel $
   38  *
   39  */
   40 
   41 #ifndef _MACHINE_CPUCONF_H_
   42 #define _MACHINE_CPUCONF_H_
   43 
   44 /*
   45  * IF YOU CHANGE THIS FILE, MAKE SURE TO UPDATE THE DEFINITION OF
   46  * "PMAP_NEEDS_PTE_SYNC" IN <arm/arm32/pmap.h> FOR THE CPU TYPE
   47  * YOU ARE ADDING SUPPORT FOR.
   48  */
   49 
   50 /*
   51  * Step 1: Count the number of CPU types configured into the kernel.
   52  */
   53 #define CPU_NTYPES      (defined(CPU_ARM9) +                            \
   54                          defined(CPU_ARM9E) +                           \
   55                          defined(CPU_ARM1176) +                         \
   56                          defined(CPU_XSCALE_PXA2X0) +                   \
   57                          defined(CPU_FA526) +                           \
   58                          defined(CPU_XSCALE_IXP425)) +                  \
   59                          defined(CPU_CORTEXA) +                         \
   60                          defined(CPU_KRAIT) +                           \
   61                          defined(CPU_MV_PJ4B)
   62 
   63 /*
   64  * Step 2: Determine which ARM architecture versions are configured.
   65  */
   66 #if defined(CPU_ARM9) || defined(CPU_FA526)
   67 #define ARM_ARCH_4      1
   68 #else
   69 #define ARM_ARCH_4      0
   70 #endif
   71 
   72 #if (defined(CPU_ARM9E) ||                                              \
   73      defined(CPU_XSCALE_81342) ||                                       \
   74      defined(CPU_XSCALE_PXA2X0) || defined(CPU_XSCALE_IXP425))
   75 #define ARM_ARCH_5      1
   76 #else
   77 #define ARM_ARCH_5      0
   78 #endif
   79 
   80 #if !defined(ARM_ARCH_6)
   81 #if defined(CPU_ARM1176)
   82 #define ARM_ARCH_6      1
   83 #else
   84 #define ARM_ARCH_6      0
   85 #endif
   86 #endif
   87 
   88 #if defined(CPU_CORTEXA) || defined(CPU_KRAIT) || defined(CPU_MV_PJ4B)
   89 #define ARM_ARCH_7A     1
   90 #else
   91 #define ARM_ARCH_7A     0
   92 #endif
   93 
   94 #define ARM_NARCH       (ARM_ARCH_4 + ARM_ARCH_5 + ARM_ARCH_6 | ARM_ARCH_7A)
   95 
   96 /*
   97  * Compatibility for userland builds that have no CPUTYPE defined.  Use the ARCH
   98  * constants predefined by the compiler to define our old-school arch constants.
   99  * This is a stopgap measure to tide us over until the conversion of all code
  100  * to the newer ACLE constants defined by ARM (see acle-compat.h).
  101  */
  102 #if ARM_NARCH == 0
  103 #if defined(__ARM_ARCH_4T__)
  104 #undef  ARM_ARCH_4
  105 #undef  ARM_NARCH
  106 #define ARM_ARCH_4 1
  107 #define ARM_NARCH  1
  108 #define CPU_ARM9 1
  109 #elif defined(__ARM_ARCH_6ZK__)
  110 #undef  ARM_ARCH_6
  111 #undef  ARM_NARCH
  112 #define ARM_ARCH_6 1
  113 #define ARM_NARCH  1
  114 #define CPU_ARM1176 1
  115 #endif
  116 #endif
  117 
  118 #if ARM_NARCH == 0 && !defined(KLD_MODULE) && defined(_KERNEL)
  119 #error ARM_NARCH is 0
  120 #endif
  121 
  122 #if ARM_ARCH_5 || ARM_ARCH_6 || ARM_ARCH_7A
  123 /*
  124  * We could support Thumb code on v4T, but the lack of clean interworking
  125  * makes that hard.
  126  */
  127 #define THUMB_CODE
  128 #endif
  129 
  130 /*
  131  * Step 3: Define which MMU classes are configured:
  132  *
  133  *      ARM_MMU_MEMC            Prehistoric, external memory controller
  134  *                              and MMU for ARMv2 CPUs.
  135  *
  136  *      ARM_MMU_GENERIC         Generic ARM MMU, compatible with ARMv4 and v5.
  137  *
  138  *      ARM_MMU_V6              ARMv6 MMU.
  139  *
  140  *      ARM_MMU_V7              ARMv7 MMU.
  141  *
  142  *      ARM_MMU_XSCALE          XScale MMU.  Compatible with generic ARM
  143  *                              MMU, but also has several extensions which
  144  *                              require different PTE layout to use.
  145  */
  146 #if (defined(CPU_ARM9) || defined(CPU_ARM9E) || defined(CPU_FA526))
  147 #define ARM_MMU_GENERIC         1
  148 #else
  149 #define ARM_MMU_GENERIC         0
  150 #endif
  151 
  152 #if defined(CPU_ARM1176)
  153 #define ARM_MMU_V6              1
  154 #else
  155 #define ARM_MMU_V6              0
  156 #endif
  157 
  158 #if defined(CPU_CORTEXA) || defined(CPU_KRAIT) || defined(CPU_MV_PJ4B)
  159 #define ARM_MMU_V7              1
  160 #else
  161 #define ARM_MMU_V7              0
  162 #endif
  163 
  164 #if (defined(CPU_XSCALE_PXA2X0) || defined(CPU_XSCALE_IXP425) ||        \
  165      defined(CPU_XSCALE_81342))
  166 #define ARM_MMU_XSCALE          1
  167 #else
  168 #define ARM_MMU_XSCALE          0
  169 #endif
  170 
  171 #define ARM_NMMUS               (ARM_MMU_GENERIC + ARM_MMU_V6 + \
  172                                  ARM_MMU_V7 + ARM_MMU_XSCALE)
  173 #if ARM_NMMUS == 0 && !defined(KLD_MODULE) && defined(_KERNEL)
  174 #error ARM_NMMUS is 0
  175 #endif
  176 
  177 /*
  178  * Step 4: Define features that may be present on a subset of CPUs
  179  *
  180  *      ARM_XSCALE_PMU          Performance Monitoring Unit on 81342
  181  */
  182 
  183 #if (defined(CPU_XSCALE_81342))
  184 #define ARM_XSCALE_PMU  1
  185 #else
  186 #define ARM_XSCALE_PMU  0
  187 #endif
  188 
  189 #if defined(CPU_XSCALE_81342)
  190 #define CPU_XSCALE_CORE3
  191 #endif
  192 #endif /* _MACHINE_CPUCONF_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/arm/include/cpuconf.h

FreeBSD/Linux Kernel Cross Reference
sys/arm/include/cpuconf.h