1 /* $NetBSD: cpuconf.h,v 1.8 2003/09/06 08:55:42 rearnsha Exp $ */
4 * Copyright (c) 2002 Wasabi Systems, Inc.
7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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
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.
41 #ifndef _MACHINE_CPUCONF_H_
42 #define _MACHINE_CPUCONF_H_
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.
51 * Step 1: Count the number of CPU types configured into the kernel.
53 #define CPU_NTYPES (defined(CPU_ARM9) + \
54 defined(CPU_ARM9E) + \
55 defined(CPU_ARM1176) + \
56 defined(CPU_XSCALE_80321) + \
57 defined(CPU_XSCALE_PXA2X0) + \
58 defined(CPU_FA526) + \
59 defined(CPU_XSCALE_IXP425)) + \
60 defined(CPU_CORTEXA) + \
61 defined(CPU_KRAIT) + \
65 * Step 2: Determine which ARM architecture versions are configured.
67 #if defined(CPU_ARM9) || defined(CPU_FA526)
73 #if (defined(CPU_ARM9E) || \
74 defined(CPU_XSCALE_80321) || \
75 defined(CPU_XSCALE_80219) || defined(CPU_XSCALE_81342) || \
76 defined(CPU_XSCALE_PXA2X0) || defined(CPU_XSCALE_IXP425))
82 #if !defined(ARM_ARCH_6)
83 #if defined(CPU_ARM1176)
90 #if defined(CPU_CORTEXA) || defined(CPU_KRAIT) || defined(CPU_MV_PJ4B)
96 #define ARM_NARCH (ARM_ARCH_4 + ARM_ARCH_5 + ARM_ARCH_6 | ARM_ARCH_7A)
99 * Compatibility for userland builds that have no CPUTYPE defined. Use the ARCH
100 * constants predefined by the compiler to define our old-school arch constants.
101 * This is a stopgap measure to tide us over until the conversion of all code
102 * to the newer ACLE constants defined by ARM (see acle-compat.h).
105 #if defined(__ARM_ARCH_4T__)
111 #elif defined(__ARM_ARCH_6ZK__)
116 #define CPU_ARM1176 1
120 #if ARM_NARCH == 0 && !defined(KLD_MODULE) && defined(_KERNEL)
121 #error ARM_NARCH is 0
124 #if ARM_ARCH_5 || ARM_ARCH_6 || ARM_ARCH_7A
126 * We could support Thumb code on v4T, but the lack of clean interworking
133 * Step 3: Define which MMU classes are configured:
135 * ARM_MMU_MEMC Prehistoric, external memory controller
136 * and MMU for ARMv2 CPUs.
138 * ARM_MMU_GENERIC Generic ARM MMU, compatible with ARMv4 and v5.
140 * ARM_MMU_V6 ARMv6 MMU.
142 * ARM_MMU_V7 ARMv7 MMU.
144 * ARM_MMU_XSCALE XScale MMU. Compatible with generic ARM
145 * MMU, but also has several extensions which
146 * require different PTE layout to use.
148 #if (defined(CPU_ARM9) || defined(CPU_ARM9E) || defined(CPU_FA526))
149 #define ARM_MMU_GENERIC 1
151 #define ARM_MMU_GENERIC 0
154 #if defined(CPU_ARM1176)
160 #if defined(CPU_CORTEXA) || defined(CPU_KRAIT) || defined(CPU_MV_PJ4B)
166 #if (defined(CPU_XSCALE_80321) || \
167 defined(CPU_XSCALE_PXA2X0) || defined(CPU_XSCALE_IXP425) || \
168 defined(CPU_XSCALE_80219) || defined(CPU_XSCALE_81342))
169 #define ARM_MMU_XSCALE 1
171 #define ARM_MMU_XSCALE 0
174 #define ARM_NMMUS (ARM_MMU_GENERIC + ARM_MMU_V6 + \
175 ARM_MMU_V7 + ARM_MMU_XSCALE)
176 #if ARM_NMMUS == 0 && !defined(KLD_MODULE) && defined(_KERNEL)
177 #error ARM_NMMUS is 0
181 * Step 4: Define features that may be present on a subset of CPUs
183 * ARM_XSCALE_PMU Performance Monitoring Unit on 80200 and 80321
186 #if (defined(CPU_XSCALE_80321) || \
187 defined(CPU_XSCALE_80219) || defined(CPU_XSCALE_81342))
188 #define ARM_XSCALE_PMU 1
190 #define ARM_XSCALE_PMU 0
193 #if defined(CPU_XSCALE_81342)
194 #define CPU_XSCALE_CORE3
196 #endif /* _MACHINE_CPUCONF_H_ */