irix_sysmp.c

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    1 /*      $NetBSD: irix_sysmp.c,v 1.21 2008/04/28 20:23:42 martin Exp $ */
    2 
    3 /*-
    4  * Copyright (c) 2001-2002 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Emmanuel Dreyfus.
    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  *
   19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __KERNEL_RCSID(0, "$NetBSD: irix_sysmp.c,v 1.21 2008/04/28 20:23:42 martin Exp $");
   34 
   35 #include <sys/errno.h>
   36 #include <sys/param.h>
   37 #include <sys/types.h>
   38 #include <sys/systm.h>
   39 #include <sys/sysctl.h>
   40 #include <sys/resource.h>
   41 #include <sys/buf.h>
   42 #include <sys/malloc.h>
   43 
   44 #include <uvm/uvm_extern.h>
   45 
   46 #include <machine/vmparam.h>
   47 
   48 #include <compat/common/compat_util.h>
   49 
   50 #include <compat/svr4/svr4_types.h>
   51 
   52 #include <compat/irix/irix_types.h>
   53 #include <compat/irix/irix_signal.h>
   54 #include <compat/irix/irix_sysmp.h>
   55 #include <compat/irix/irix_syscallargs.h>
   56 
   57 /* IRIX /dev/kmem diggers emulation */
   58 static int irix_sysmp_kernaddr(int, register_t *);
   59 static int irix_sysmp_sasz(int, register_t *);
   60 static int irix_sysmp_saget(int, char *, size_t);
   61 extern struct loadavg averunnable;
   62 extern long irix_kernel_var[32];
   63 
   64 int
   65 irix_sys_sysmp(struct lwp *l, const struct irix_sys_sysmp_args *uap, register_t *retval)
   66 {
   67         /* {
   68                 syscallarg(int) cmd;
   69                 syscallarg(void *) arg1;
   70                 syscallarg(void *) arg2;
   71                 syscallarg(void *) arg3;
   72                 syscallarg(void *) arg4;
   73         } */
   74         int cmd = SCARG(uap, cmd);
   75 
   76 #ifdef DEBUG_IRIX
   77         printf("irix_sys_sysmp(): cmd = %d\n", cmd);
   78 #endif
   79 
   80         switch(cmd) {
   81         case IRIX_MP_NPROCS:    /* Number of processors in complex */
   82         case IRIX_MP_NAPROCS: { /* Number of active processors in complex */
   83                 *retval = ncpu;
   84                 return 0;
   85                 break;
   86         }
   87         case IRIX_MP_PGSIZE:    /* Page size */
   88                 *retval = (register_t)PAGE_SIZE;
   89                 break;
   90 
   91         case IRIX_MP_KERNADDR:  /* Kernel structure addresses */
   92                 return irix_sysmp_kernaddr((int)SCARG(uap, arg1), retval);
   93                 break;
   94 
   95         case IRIX_MP_SASZ:      /* System accounting structure size */
   96                 return irix_sysmp_sasz((int)SCARG(uap, arg1), retval);
   97                 break;
   98 
   99         case IRIX_MP_SAGET1: /* Get system accounting structure for one CPU */
  100         case IRIX_MP_SAGET:  /* Get system accounting structure for all CPU */
  101                 return irix_sysmp_saget((int)SCARG(uap, arg1),
  102                     (char *)SCARG(uap, arg2), (size_t)SCARG(uap, arg3));
  103                 break;
  104 
  105         default:
  106                 printf("Warning: call to unimplemented sysmp() command %d\n",
  107                     cmd);
  108                 return EINVAL;
  109                 break;
  110         }
  111         return 0;
  112 }
  113 
  114 static int
  115 irix_sysmp_kernaddr(int kernaddr, register_t *retval)
  116 {
  117         switch (kernaddr) {
  118         case IRIX_MPKA_AVENRUN:
  119                 *retval = (register_t)&averunnable;
  120                 break;
  121 
  122         case IRIX_MPKA_VAR:
  123                 *retval = (register_t)&irix_kernel_var;
  124                 break;
  125 
  126         default:
  127                 printf("Warning: sysmp(KERNADDR) unimplemented address %d\n",
  128                     kernaddr);
  129                 return EINVAL;
  130                 break;
  131         }
  132 
  133         return 0;
  134 }
  135 
  136 static int
  137 irix_sysmp_sasz(int cmd, register_t *retval)
  138 {
  139         switch (cmd) {
  140         case IRIX_MPSA_RMINFO:
  141                 *retval = sizeof(struct irix_sysmp_rminfo);
  142                 break;
  143         default:
  144                 printf("Warning: sysmp(SASZ) unimplemented struct %d\n",
  145                     cmd);
  146                 return EINVAL;
  147                 break;
  148         }
  149         return 0;
  150 }
  151 
  152 static int
  153 irix_sysmp_saget(int cmd, char *buf, size_t len)
  154 {
  155         extern u_int bufpages;
  156         void *kbuf;
  157         int error = 0;
  158 
  159         kbuf = malloc(len, M_TEMP, M_WAITOK);
  160 
  161         switch (cmd) {
  162         case IRIX_MPSA_RMINFO: {
  163                 struct irix_sysmp_rminfo *irm =
  164                     (struct irix_sysmp_rminfo *)kbuf;
  165                 int active, inactive;
  166 
  167                 uvm_estimatepageable(&active, &inactive);
  168                 irm->freemem = uvmexp.free + uvmexp.filepages;
  169                 irm->availsmem = uvmexp.free + active + inactive
  170                     + uvmexp.wired + (uvmexp.swpages - uvmexp.swpgonly);
  171                 irm->availrmem = uvmexp.free + active + inactive + uvmexp.wired;
  172                 irm->bufmem = bufpages;
  173                 irm->physmem = uvmexp.npages;
  174                 irm->dchunkpages = 0; /* unsupported */
  175                 irm->pmapmem = 0;     /* unsupported */
  176                 irm->strmem = 0;      /* unsupported */
  177                 irm->chunkpages = 0;  /* unsupported */
  178                 irm->dpages = 0;      /* unsupported */
  179                 irm->emptymem = uvmexp.free;
  180                 irm->ravailrmem = active + inactive + uvmexp.free;
  181                 break;
  182         }
  183         default:
  184                 printf("Warning: sysmp(SAGET) unimplemented struct %d\n",
  185                     cmd);
  186                 error = EINVAL;
  187                 break;
  188         }
  189 
  190         if (error == 0)
  191                 error = copyout(kbuf, buf, len);
  192 
  193         free(kbuf, M_TEMP);
  194         return error;
  195 }

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FreeBSD/Linux Kernel Cross Reference sys/compat/irix/irix_sysmp.c

FreeBSD/Linux Kernel Cross Reference
sys/compat/irix/irix_sysmp.c