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      1 /*	$NetBSD: kvm_sh3.c,v 1.10 2022/01/10 19:51:30 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1989, 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software developed by the Computer Systems
      8  * Engineering group at Lawrence Berkeley Laboratory under DARPA contract
      9  * BG 91-66 and contributed to Berkeley.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #if defined(LIBC_SCCS) && !defined(lint)
     38 #if 0
     39 static char sccsid[] = "@(#)kvm_hp300.c	8.1 (Berkeley) 6/4/93";
     40 #else
     41 __RCSID("$NetBSD: kvm_sh3.c,v 1.10 2022/01/10 19:51:30 christos Exp $");
     42 #endif
     43 #endif /* LIBC_SCCS and not lint */
     44 
     45 /*
     46  * SH3 machine dependent routines for kvm.
     47  */
     48 
     49 #include <sys/param.h>
     50 #include <sys/proc.h>
     51 #include <sys/stat.h>
     52 #include <sys/kcore.h>
     53 #include <sys/types.h>
     54 
     55 #include <stdlib.h>
     56 #include <unistd.h>
     57 #include <nlist.h>
     58 #include <kvm.h>
     59 
     60 #include <uvm/uvm_extern.h>
     61 
     62 #include <limits.h>
     63 #include <db.h>
     64 
     65 #include "kvm_private.h"
     66 
     67 #include <machine/pte.h>
     68 #include <machine/vmparam.h>
     69 
     70 #ifndef btop
     71 #define	btop(x)		(((unsigned)(x)) >> PGSHIFT)	/* XXX */
     72 #define	ptob(x)		((caddr_t)((x) << PGSHIFT))	/* XXX */
     73 #endif
     74 
     75 void
     76 _kvm_freevtop(kvm_t *kd)
     77 {
     78 
     79 	/* Not actually used for anything right now, but safe. */
     80 	if (kd->vmst != 0)
     81 		free(kd->vmst);
     82 }
     83 
     84 /*ARGSUSED*/
     85 int
     86 _kvm_initvtop(kvm_t *kd)
     87 {
     88 
     89 	return (0);
     90 }
     91 
     92 /*
     93  * Translate a kernel virtual address to a physical address.
     94  */
     95 int
     96 _kvm_kvatop(kvm_t *kd, vaddr_t va, paddr_t *pa)
     97 {
     98 	_kvm_err(kd, 0, "vatop not yet implemented!");
     99 	return 0;
    100 }
    101 
    102 /*
    103  * Translate a physical address to a file-offset in the crash dump.
    104  */
    105 off_t
    106 _kvm_pa2off(kvm_t *kd, paddr_t pa)
    107 {
    108 	_kvm_err(kd, 0, "pa2off not yet implemented!");
    109 	return 0;
    110 }
    111 
    112 /*
    113  * Machine-dependent initialization for ALL open kvm descriptors,
    114  * not just those for a kernel crash dump.  Some architectures
    115  * have to deal with these NOT being constants!  (i.e. m68k)
    116  */
    117 int
    118 _kvm_mdopen(kvm_t *kd)
    119 {
    120 
    121 	kd->min_uva = VM_MIN_ADDRESS;
    122 	kd->max_uva = VM_MAXUSER_ADDRESS;
    123 
    124 	return (0);
    125 }
    126