1 /* $NetBSD: cpuconf.h,v 1.25 2015/07/08 15:18:04 skrll 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 38 #ifndef _ARM_CPUCONF_H_ 39 #define _ARM_CPUCONF_H_ 40 41 #if defined(_KERNEL_OPT) 42 #include "opt_cputypes.h" 43 #include "opt_cpuoptions.h" 44 #endif /* _KERNEL_OPT */ 45 46 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 47 #define __CPU_XSCALE_PXA2XX 48 #endif 49 50 #ifdef CPU_XSCALE_PXA2X0 51 #warning option CPU_XSCALE_PXA2X0 is obsolete. Use CPU_XSCALE_PXA250 and/or CPU_XSCALE_PXA270. 52 #endif 53 54 /* 55 * IF YOU CHANGE THIS FILE, MAKE SURE TO UPDATE THE DEFINITION OF 56 * "PMAP_NEEDS_PTE_SYNC" IN <arm/arm32/pmap.h> FOR THE CPU TYPE 57 * YOU ARE ADDING SUPPORT FOR. 58 */ 59 60 #if 0 61 /* 62 * Step 1: Count the number of CPU types configured into the kernel. 63 */ 64 #if defined(_KERNEL_OPT) 65 #define CPU_NTYPES (defined(CPU_ARM2) + defined(CPU_ARM250) + \ 66 defined(CPU_ARM3) + \ 67 defined(CPU_ARM6) + defined(CPU_ARM7) + \ 68 defined(CPU_ARM7TDMI) + \ 69 defined(CPU_ARM8) + defined(CPU_ARM9) + \ 70 defined(CPU_ARM9E) + \ 71 defined(CPU_ARM10) + \ 72 defined(CPU_ARM11) + \ 73 defined(CPU_ARM1136) + \ 74 defined(CPU_ARM1176) + \ 75 defined(CPU_ARM11MPCORE) + \ 76 defined(CPU_CORTEX) + \ 77 defined(CPU_CORTEXA8) + \ 78 defined(CPU_CORTEXA9) + \ 79 defined(CPU_SA110) + defined(CPU_SA1100) + \ 80 defined(CPU_SA1110) + \ 81 defined(CPU_FA526) + \ 82 defined(CPU_IXP12X0) + \ 83 defined(CPU_XSCALE) + \ 84 defined(CPU_SHEEVA)) 85 #else 86 #define CPU_NTYPES 2 87 #endif /* _KERNEL_OPT */ 88 #endif 89 90 /* 91 * Step 2: Determine which ARM architecture versions are configured. 92 */ 93 #if !defined(_KERNEL_OPT) || \ 94 (defined(CPU_ARM2) || defined(CPU_ARM250) || defined(CPU_ARM3)) 95 #define ARM_ARCH_2 1 96 #else 97 #define ARM_ARCH_2 0 98 #endif 99 100 #if !defined(_KERNEL_OPT) || \ 101 (defined(CPU_ARM6) || defined(CPU_ARM7)) 102 #define ARM_ARCH_3 1 103 #else 104 #define ARM_ARCH_3 0 105 #endif 106 107 #if !defined(_KERNEL_OPT) || \ 108 (defined(CPU_ARM7TDMI) || defined(CPU_ARM8) || defined(CPU_ARM9) || \ 109 defined(CPU_SA110) || defined(CPU_SA1100) || defined(CPU_FA526) || \ 110 defined(CPU_SA1110) || defined(CPU_IXP12X0)) 111 #define ARM_ARCH_4 1 112 #else 113 #define ARM_ARCH_4 0 114 #endif 115 116 #if !defined(_KERNEL_OPT) || \ 117 (defined(CPU_ARM9E) || defined(CPU_ARM10) || \ 118 defined(CPU_XSCALE) || defined(CPU_SHEEVA)) 119 #define ARM_ARCH_5 1 120 #else 121 #define ARM_ARCH_5 0 122 #endif 123 124 #if defined(CPU_ARM11) || defined(CPU_ARM11MPCORE) 125 #define ARM_ARCH_6 1 126 #else 127 #define ARM_ARCH_6 0 128 #endif 129 130 #if defined(CPU_CORTEX) || defined(CPU_PJ4B) 131 #define ARM_ARCH_7 1 132 #else 133 #define ARM_ARCH_7 0 134 #endif 135 136 #define ARM_NARCH (ARM_ARCH_2 + ARM_ARCH_3 + ARM_ARCH_4 + \ 137 ARM_ARCH_5 + ARM_ARCH_6 + ARM_ARCH_7) 138 #if ARM_NARCH == 0 139 #error ARM_NARCH is 0 140 #endif 141 142 #if ARM_ARCH_5 || ARM_ARCH_6 || ARM_ARCH_7 143 /* 144 * We could support Thumb code on v4T, but the lack of clean interworking 145 * makes that hard. 146 */ 147 #define THUMB_CODE 148 #endif 149 150 /* 151 * Step 3: Define which MMU classes are configured: 152 * 153 * ARM_MMU_MEMC Prehistoric, external memory controller 154 * and MMU for ARMv2 CPUs. 155 * 156 * ARM_MMU_GENERIC Generic ARM MMU, compatible with ARM6. 157 * 158 * ARM_MMU_SA1 StrongARM SA-1 MMU. Compatible with generic 159 * ARM MMU, but has no write-through cache mode. 160 * 161 * ARM_MMU_XSCALE XScale MMU. Compatible with generic ARM 162 * MMU, but also has several extensions which 163 * require different PTE layout to use. 164 * 165 * ARM_MMU_V6C ARM v6 MMU in backward compatible mode. 166 * Compatible with generic ARM MMU, but 167 * also has several extensions which 168 * require different PTE layouts to use. 169 * XP bit in CP15 control reg is cleared. 170 * 171 * ARM_MMU_V6N ARM v6 MMU with XP bit of CP15 control reg 172 * set. New features such as shared-bit 173 * and excute-never bit are available. 174 * Multiprocessor support needs this mode. 175 * 176 * ARM_MMU_V7 ARM v7 MMU. 177 */ 178 #if !defined(_KERNEL_OPT) || \ 179 (defined(CPU_ARM2) || defined(CPU_ARM250) || defined(CPU_ARM3)) 180 #define ARM_MMU_MEMC 1 181 #else 182 #define ARM_MMU_MEMC 0 183 #endif 184 185 #if !defined(_KERNEL_OPT) || \ 186 (defined(CPU_ARM6) || defined(CPU_ARM7) || defined(CPU_ARM7TDMI) || \ 187 defined(CPU_ARM8) || defined(CPU_ARM9) || defined(CPU_ARM9E) || \ 188 defined(CPU_ARM10) || defined(CPU_FA526)) || defined(CPU_SHEEVA) 189 #define ARM_MMU_GENERIC 1 190 #else 191 #define ARM_MMU_GENERIC 0 192 #endif 193 194 #if !defined(_KERNEL_OPT) || \ 195 (defined(CPU_SA110) || defined(CPU_SA1100) || defined(CPU_SA1110) ||\ 196 defined(CPU_IXP12X0)) 197 #define ARM_MMU_SA1 1 198 #else 199 #define ARM_MMU_SA1 0 200 #endif 201 202 #if !defined(_KERNEL_OPT) || \ 203 defined(CPU_XSCALE) 204 #define ARM_MMU_XSCALE 1 205 #else 206 #define ARM_MMU_XSCALE 0 207 #endif 208 209 #if !defined(_KERNEL_OPT) || \ 210 (defined(CPU_ARM11) && defined(ARM11_COMPAT_MMU)) 211 #define ARM_MMU_V6C 1 212 #else 213 #define ARM_MMU_V6C 0 214 #endif 215 216 #if !defined(_KERNEL_OPT) || \ 217 (defined(CPU_ARM11) && !defined(ARM11_COMPAT_MMU)) 218 #define ARM_MMU_V6N 1 219 #else 220 #define ARM_MMU_V6N 0 221 #endif 222 223 #define ARM_MMU_V6 (ARM_MMU_V6C + ARM_MMU_V6N) 224 225 #if !defined(_KERNEL_OPT) || \ 226 defined(CPU_ARMV7) 227 #define ARM_MMU_V7 1 228 #else 229 #define ARM_MMU_V7 0 230 #endif 231 232 /* 233 * Can we use the ASID support in armv6+ MMUs? 234 */ 235 #if !defined(_LOCORE) 236 #define ARM_MMU_EXTENDED ((ARM_MMU_MEMC + ARM_MMU_GENERIC \ 237 + ARM_MMU_SA1 + ARM_MMU_XSCALE \ 238 + ARM_MMU_V6C) == 0 \ 239 && (ARM_MMU_V6N + ARM_MMU_V7) > 0) 240 #if ARM_MMU_EXTENDED == 0 241 #undef ARM_MMU_EXTENDED 242 #endif 243 #endif 244 245 #define ARM_NMMUS (ARM_MMU_MEMC + ARM_MMU_GENERIC + \ 246 ARM_MMU_SA1 + ARM_MMU_XSCALE + \ 247 ARM_MMU_V6N + ARM_MMU_V6C + ARM_MMU_V7) 248 #if ARM_NMMUS == 0 249 #error ARM_NMMUS is 0 250 #endif 251 252 /* 253 * Step 4: Define features that may be present on a subset of CPUs 254 * 255 * ARM_XSCALE_PMU Performance Monitoring Unit on 80200 and 80321 256 */ 257 258 #if !defined(_KERNEL_OPT) || \ 259 (defined(CPU_XSCALE_80200) || defined(CPU_XSCALE_80321)) 260 #define ARM_XSCALE_PMU 1 261 #else 262 #define ARM_XSCALE_PMU 0 263 #endif 264 265 #endif /* _ARM_CPUCONF_H_ */ 266