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cpufeat.h revision 1.5 
      1 /* $NetBSD: cpufeat.h,v 1.5 2018/03/22 21:26:27 macallan Exp $ */
      2 /*-
      3  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      4  * All rights reserved.
      5  *
      6  * This code is derived from software contributed to The NetBSD Foundation
      7  * by Tim Rightnour
      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  *
     18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef _POWERPC_OEA_OEAFEAT_H_
     32 
     33 /* Cpu features for OEA Cpus.
     34  * These are only features that affect early bootstrap, and decisions
     35  * that need to be made very early on, like what pmap to use, if bats are
     36  * available, etc etc.  More can be added later. Some are not yet utilized.
     37  */
     38 
     39 /* 0 means, 32bit, has bats, not a 601, ie, the default 604 case */
     40 
     41 #define OEACPU_64		(1 << 0)
     42 #define OEACPU_64_BRIDGE	(1 << 1)
     43 #define OEACPU_NOBAT		(1 << 2)
     44 #define OEACPU_HIGHBAT		(1 << 3)
     45 #define OEACPU_601		(1 << 4)
     46 #define OEACPU_HIGHSPRG		(1 << 5)
     47 #define OEACPU_ALTIVEC		(1 << 6)
     48 #define OEACPU_XBSEN		(1 << 7)	/* BATS > 256MB */
     49 
     50 #ifdef _KERNEL
     51 void cpu_model_init(void);
     52 extern unsigned long oeacpufeat;
     53 
     54 #define oea_mapiodev(addr, size) ((oeacpufeat & OEACPU_NOBAT) ? \
     55 			mapiodev((paddr_t)(addr), (size), 0) : (void *)(addr))
     56 
     57 #endif
     58 
     59 #endif /* _POWERPC_OEA_OEAFEAT_H_ */
     60