13f8d2ce5f
Gone are the old kern_sysctl(), cpu_sysctl(), hw_sysctl(), vfs_sysctl(), etc, routines, along with sysctl_int() et al. Now all nodes are registered with the tree, and nodes can be added (or removed) easily, and I/O to and from the tree is handled generically. Since the nodes are registered with the tree, the mapping from name to number (and back again) can now be discovered, instead of having to be hard coded. Adding new nodes to the tree is likewise much simpler -- the new infrastructure handles almost all the work for simple types, and just about anything else can be done with a small helper function. All existing nodes are where they were before (numerically speaking), so all existing consumers of sysctl information should notice no difference. PS - I'm sorry, but there's a distinct lack of documentation at the moment. I'm working on sysctl(3/8/9) right now, and I promise to watch out for buses.
226 lines
6.2 KiB
C
226 lines
6.2 KiB
C
/* $NetBSD: irix_sysmp.c,v 1.11 2003/12/04 19:38:22 atatat Exp $ */
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/*-
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* Copyright (c) 2001-2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Emmanuel Dreyfus.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: irix_sysmp.c,v 1.11 2003/12/04 19:38:22 atatat Exp $");
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#include <sys/errno.h>
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <sys/sysctl.h>
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#include <sys/resource.h>
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#include <sys/buf.h>
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#include <sys/malloc.h>
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#include <uvm/uvm_extern.h>
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#include <machine/vmparam.h>
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#include <compat/common/compat_util.h>
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#include <compat/svr4/svr4_types.h>
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#include <compat/irix/irix_types.h>
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#include <compat/irix/irix_signal.h>
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#include <compat/irix/irix_sysmp.h>
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#include <compat/irix/irix_syscallargs.h>
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/* IRIX /dev/kmem diggers emulation */
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static int irix_sysmp_kernaddr __P((int, register_t *));
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static int irix_sysmp_sasz __P((int, register_t *));
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static int irix_sysmp_saget __P((int, char *, size_t));
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extern struct loadavg averunnable;
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extern long irix_kernel_var[32];
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int
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irix_sys_sysmp(l, v, retval)
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struct lwp *l;
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void *v;
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register_t *retval;
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{
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struct irix_sys_sysmp_args /* {
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syscallarg(int) cmd;
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syscallarg(void *) arg1;
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syscallarg(void *) arg2;
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syscallarg(void *) arg3;
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syscallarg(void *) arg4;
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} */ *uap = v;
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int cmd = SCARG(uap, cmd);
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int error = 0;
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#ifdef DEBUG_IRIX
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printf("irix_sys_sysmp(): cmd = %d\n", cmd);
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#endif
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switch(cmd) {
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case IRIX_MP_NPROCS: /* Number of processors in complex */
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case IRIX_MP_NAPROCS: { /* Number of active processors in complex */
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int ncpu, name[2];
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size_t sz;
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name[0] = CTL_HW;
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name[1] = HW_NCPU;
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sz = sizeof(ncpu);
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/*
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* by passing a NULL lwp pointer, we indicate that oldp
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* (and newp) are kernel addresses, not userspace
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* addresses, making this whole thing simpler
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*/
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error = old_sysctl(&name[0], 2, &ncpu, &sz, NULL, 0, NULL);
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if (!error)
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*retval = ncpu;
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return error;
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break;
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}
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case IRIX_MP_PGSIZE: /* Page size */
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*retval = (register_t)PAGE_SIZE;
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break;
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case IRIX_MP_KERNADDR: /* Kernel structure addresses */
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return irix_sysmp_kernaddr((int)SCARG(uap, arg1), retval);
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break;
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case IRIX_MP_SASZ: /* System accounting structure size */
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return irix_sysmp_sasz((int)SCARG(uap, arg1), retval);
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break;
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case IRIX_MP_SAGET1: /* Get system accounting structure for one CPU */
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case IRIX_MP_SAGET: /* Get system accounting structure for all CPU */
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return irix_sysmp_saget((int)SCARG(uap, arg1),
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(char *)SCARG(uap, arg2), (size_t)SCARG(uap, arg3));
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break;
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default:
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printf("Warning: call to unimplemented sysmp() command %d\n",
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cmd);
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return EINVAL;
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break;
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}
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return 0;
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}
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static int
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irix_sysmp_kernaddr(kernaddr, retval)
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int kernaddr;
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register_t *retval;
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{
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switch (kernaddr) {
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case IRIX_MPKA_AVENRUN:
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*retval = (register_t)&averunnable;
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break;
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case IRIX_MPKA_VAR:
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*retval = (register_t)&irix_kernel_var;
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break;
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default:
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printf("Warning: sysmp(KERNADDR) unimplemented address %d\n",
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kernaddr);
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return EINVAL;
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break;
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}
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return 0;
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}
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static int
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irix_sysmp_sasz(cmd, retval)
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int cmd;
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register_t *retval;
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{
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switch (cmd) {
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case IRIX_MPSA_RMINFO:
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*retval = sizeof(struct irix_sysmp_rminfo);
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break;
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default:
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printf("Warning: sysmp(SASZ) unimplemented struct %d\n",
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cmd);
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return EINVAL;
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break;
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}
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return 0;
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}
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static int
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irix_sysmp_saget(cmd, buf, len)
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int cmd;
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char *buf;
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size_t len;
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{
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void *kbuf;
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int error = 0;
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kbuf = malloc(len, M_TEMP, M_WAITOK);
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switch (cmd) {
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case IRIX_MPSA_RMINFO: {
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struct irix_sysmp_rminfo *irm =
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(struct irix_sysmp_rminfo *)kbuf;
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irm->freemem = uvmexp.free + uvmexp.filepages;
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irm->availsmem = uvmexp.free + uvmexp.active + uvmexp.inactive
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+ uvmexp.wired + (uvmexp.swpages - uvmexp.swpgonly);
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irm->availrmem = uvmexp.free + uvmexp.active + uvmexp.inactive
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+ uvmexp.wired;
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irm->bufmem = bufpages;
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irm->physmem = uvmexp.npages;
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irm->dchunkpages = 0; /* unsupported */
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irm->pmapmem = 0; /* unsupported */
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irm->strmem = 0; /* unsupported */
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irm->chunkpages = 0; /* unsupported */
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irm->dpages = 0; /* unsupported */
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irm->emptymem = uvmexp.free;
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irm->ravailrmem = uvmexp.active + uvmexp.inactive + uvmexp.free;
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break;
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}
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default:
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printf("Warning: sysmp(SAGET) unimplemented struct %d\n",
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cmd);
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error = EINVAL;
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break;
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}
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if (error == 0)
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error = copyout(kbuf, buf, len);
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free(kbuf, M_TEMP);
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return error;
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}
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