1 /* $OpenBSD: cpuconf.h,v 1.17 2016/08/14 11:30:54 jsg Exp $ */ 2 /* $NetBSD: cpuconf.h,v 1.7 2003/05/23 00:57:24 ichiro Exp $ */ 3 4 /* 5 * Copyright (c) 2002 Wasabi Systems, Inc. 6 * All rights reserved. 7 * 8 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed for the NetBSD Project by 21 * Wasabi Systems, Inc. 22 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 23 * or promote products derived from this software without specific prior 24 * written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _ARM_CPUCONF_H_ 40 #define _ARM_CPUCONF_H_ 41 42 /* 43 * IF YOU CHANGE THIS FILE, MAKE SURE TO UPDATE THE DEFINITION OF 44 * "PMAP_NEEDS_PTE_SYNC" IN <arm/arm/pmap.h> FOR THE CPU TYPE 45 * YOU ARE ADDING SUPPORT FOR. 46 */ 47 48 /* 49 * Determine which ARM architecture versions are configured. 50 */ 51 #if defined(CPU_XSCALE_PXA2X0) 52 #define ARM_ARCH_5 1 53 #else 54 #define ARM_ARCH_5 0 55 #endif 56 57 #if defined(CPU_ARMv7) 58 #define ARM_ARCH_7 1 59 #else 60 #define ARM_ARCH_7 0 61 #endif 62 63 /* 64 * Define which MMU classes are configured: 65 * 66 * ARM_MMU_GENERIC Generic ARM MMU, compatible with ARM6. 67 * 68 * ARM_MMU_XSCALE XScale MMU. Compatible with generic ARM 69 * MMU, but also has several extensions which 70 * require different PTE layout to use. 71 * ARM_MMU_V7 v6/v7 MMU with XP bit enabled subpage 72 * protection is not used, TEX/AP is used instead. 73 */ 74 75 #if defined(CPU_ARMv7) 76 #define ARM_MMU_GENERIC 1 77 #else 78 #define ARM_MMU_GENERIC 0 79 #endif 80 81 #if defined(CPU_XSCALE_PXA2X0) 82 #define ARM_MMU_XSCALE 1 83 #else 84 #define ARM_MMU_XSCALE 0 85 #endif 86 87 #if defined(CPU_ARMv7) 88 #define ARM_MMU_V7 1 89 #else 90 #define ARM_MMU_V7 0 91 #endif 92 93 #define ARM_NMMUS (ARM_MMU_GENERIC + \ 94 ARM_MMU_XSCALE + ARM_MMU_V7) 95 96 #endif /* _ARM_CPUCONF_H_ */ 97