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.
56 * Step 2: Determine which ARM architecture versions are configured.
59 #if (defined(CPU_ARM7TDMI) || defined(CPU_ARM8) || defined(CPU_ARM9) || \
60 defined(CPU_SA110) || defined(CPU_SA1100) || defined(CPU_SA1110) || \
61 defined(CPU_IXP12X0) || defined(CPU_XSCALE_IXP425))
67 #if (defined(CPU_XSCALE_80200) || defined(CPU_XSCALE_80321) || \
68 defined(CPU_XSCALE_80219) || defined(CPU_XSCALE_81342) || \
69 defined(CPU_XSCALE_PXA2X0)) || defined(CPU_ARM10)
75 #define ARM_NARCH (ARM_ARCH_4 + ARM_ARCH_5)
76 #if ARM_NARCH == 0 && !defined(KLD_MODULE) && defined(_KERNEL)
81 * Step 3: Define which MMU classes are configured:
83 * ARM_MMU_MEMC Prehistoric, external memory controller
84 * and MMU for ARMv2 CPUs.
86 * ARM_MMU_GENERIC Generic ARM MMU, compatible with ARM6.
88 * ARM_MMU_SA1 StrongARM SA-1 MMU. Compatible with generic
89 * ARM MMU, but has no write-through cache mode.
91 * ARM_MMU_XSCALE XScale MMU. Compatible with generic ARM
92 * MMU, but also has several extensions which
93 * require different PTE layout to use.
95 #if (defined(CPU_ARM2) || defined(CPU_ARM250) || defined(CPU_ARM3))
96 #define ARM_MMU_MEMC 1
98 #define ARM_MMU_MEMC 0
101 #if (defined(CPU_ARM6) || defined(CPU_ARM7) || defined(CPU_ARM7TDMI) || \
102 defined(CPU_ARM8) || defined(CPU_ARM9) || defined(CPU_ARM10))
103 #define ARM_MMU_GENERIC 1
105 #define ARM_MMU_GENERIC 0
108 #if (defined(CPU_SA110) || defined(CPU_SA1100) || defined(CPU_SA1110) ||\
109 defined(CPU_IXP12X0))
110 #define ARM_MMU_SA1 1
112 #define ARM_MMU_SA1 0
115 #if(defined(CPU_XSCALE_80200) || defined(CPU_XSCALE_80321) || \
116 defined(CPU_XSCALE_PXA2X0) || defined(CPU_XSCALE_IXP425) || \
117 defined(CPU_XSCALE_80219)) || defined(CPU_XSCALE_81342)
118 #define ARM_MMU_XSCALE 1
120 #define ARM_MMU_XSCALE 0
123 #define ARM_NMMUS (ARM_MMU_MEMC + ARM_MMU_GENERIC + \
124 ARM_MMU_SA1 + ARM_MMU_XSCALE)
125 #if ARM_NMMUS == 0 && !defined(KLD_MODULE) && defined(_KERNEL)
126 #error ARM_NMMUS is 0
130 * Step 4: Define features that may be present on a subset of CPUs
132 * ARM_XSCALE_PMU Performance Monitoring Unit on 80200 and 80321
135 #if (defined(CPU_XSCALE_80200) || defined(CPU_XSCALE_80321) || \
136 defined(CPU_XSCALE_80219)) || defined(CPU_XSCALE_81342)
137 #define ARM_XSCALE_PMU 1
139 #define ARM_XSCALE_PMU 0
142 #if defined(CPU_XSCALE_81342)
143 #define CPU_XSCALE_CORE3
145 #endif /* _MACHINE_CPUCONF_H_ */