NetBSD/sys/compat/irix/irix_sysmp.c

223 lines
6.1 KiB
C

/* $NetBSD: irix_sysmp.c,v 1.8 2002/04/20 21:25:01 manu Exp $ */
/*-
* Copyright (c) 2001-2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Emmanuel Dreyfus.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: irix_sysmp.c,v 1.8 2002/04/20 21:25:01 manu Exp $");
#include <sys/errno.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/sysctl.h>
#include <sys/resource.h>
#include <sys/buf.h>
#include <sys/malloc.h>
#include <uvm/uvm_extern.h>
#include <machine/vmparam.h>
#include <compat/common/compat_util.h>
#include <compat/svr4/svr4_types.h>
#include <compat/irix/irix_types.h>
#include <compat/irix/irix_signal.h>
#include <compat/irix/irix_sysmp.h>
#include <compat/irix/irix_syscallargs.h>
/* IRIX /dev/kmem diggers emulation */
static int irix_sysmp_kernaddr __P((int, register_t *));
static int irix_sysmp_sasz __P((int, register_t *));
static int irix_sysmp_saget __P((int, char *, size_t));
extern struct loadavg averunnable;
extern long irix_kernel_var[32];
int
irix_sys_sysmp(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct irix_sys_sysmp_args /* {
syscallarg(int) cmd;
syscallarg(void *) arg1;
syscallarg(void *) arg2;
syscallarg(void *) arg3;
syscallarg(void *) arg4;
} */ *uap = v;
int cmd = SCARG(uap, cmd);
int error = 0;
caddr_t sg = stackgap_init(p, 0);
#ifdef DEBUG_IRIX
printf("irix_sys_sysmp(): cmd = %d\n", cmd);
#endif
switch(cmd) {
case IRIX_MP_NPROCS: /* Number of processors in complex */
case IRIX_MP_NAPROCS: { /* Number of active processors in complex */
int *ncpu = stackgap_alloc(p, &sg, sizeof(int));
int name = HW_NCPU;
int namelen = sizeof(name);
error = hw_sysctl(&name, 1, ncpu, &namelen, NULL, 0, p);
if (!error)
error = copyin(ncpu, retval, sizeof(int));
return error;
break;
}
case IRIX_MP_PGSIZE: /* Page size */
*retval = (register_t)PAGE_SIZE;
break;
case IRIX_MP_KERNADDR: /* Kernel structure addresses */
return irix_sysmp_kernaddr((int)SCARG(uap, arg1), retval);
break;
case IRIX_MP_SASZ: /* System accounting structure size */
return irix_sysmp_sasz((int)SCARG(uap, arg1), retval);
break;
case IRIX_MP_SAGET1: /* Get system accounting structure for one CPU */
case IRIX_MP_SAGET: /* Get system accounting structure for all CPU */
return irix_sysmp_saget((int)SCARG(uap, arg1),
(char *)SCARG(uap, arg2), (size_t)SCARG(uap, arg3));
break;
default:
printf("Warning: call to unimplemented sysmp() command %d\n",
cmd);
return EINVAL;
break;
}
return 0;
}
static int
irix_sysmp_kernaddr(kernaddr, retval)
int kernaddr;
register_t *retval;
{
switch (kernaddr) {
case IRIX_MPKA_AVENRUN:
*retval = (register_t)&averunnable;
break;
case IRIX_MPKA_VAR:
*retval = (register_t)&irix_kernel_var;
break;
default:
printf("Warning: sysmp(KERNADDR) unimplemented address %d\n",
kernaddr);
return EINVAL;
break;
}
return 0;
}
static int
irix_sysmp_sasz(cmd, retval)
int cmd;
register_t *retval;
{
switch (cmd) {
case IRIX_MPSA_RMINFO:
*retval = sizeof(struct irix_sysmp_rminfo);
break;
default:
printf("Warning: sysmp(SASZ) unimplemented struct %d\n",
cmd);
return EINVAL;
break;
}
return 0;
}
static int
irix_sysmp_saget(cmd, buf, len)
int cmd;
char *buf;
size_t len;
{
void *kbuf;
int error = 0;
if (!uvm_useracc(buf, len, B_WRITE))
return EINVAL;
kbuf = malloc(len, M_TEMP, M_WAITOK);
switch (cmd) {
case IRIX_MPSA_RMINFO: {
struct irix_sysmp_rminfo *irm =
(struct irix_sysmp_rminfo *)kbuf;
irm->freemem = uvmexp.free + uvmexp.filepages;
irm->availsmem = uvmexp.free + uvmexp.active + uvmexp.inactive
+ uvmexp.wired + (uvmexp.swpages - uvmexp.swpgonly);
irm->availrmem = uvmexp.free + uvmexp.active + uvmexp.inactive
+ uvmexp.wired;
irm->bufmem = bufpages;
irm->physmem = uvmexp.npages;
irm->dchunkpages = 0; /* unsupported */
irm->pmapmem = 0; /* unsupported */
irm->strmem = 0; /* unsupported */
irm->chunkpages = 0; /* unsupported */
irm->dpages = 0; /* unsupported */
irm->emptymem = uvmexp.free;
irm->ravailrmem = uvmexp.active + uvmexp.inactive + uvmexp.free;
break;
}
default:
printf("Warning: sysmp(SAGET) unimplemented struct %d\n",
cmd);
error = EINVAL;
break;
}
if (error == 0)
(void)copyout((void *)kbuf, (void *)buf, len);
free(kbuf, M_TEMP);
return error;
}