133 lines
4.0 KiB
C
133 lines
4.0 KiB
C
/* $NetBSD: irix_kmem.c,v 1.9 2009/03/14 21:04:18 dsl Exp $ */
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/*-
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* Copyright (c) 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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*
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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_kmem.c,v 1.9 2009/03/14 21:04:18 dsl Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/device.h>
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#include <sys/vnode.h>
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#include <sys/conf.h>
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#include <compat/irix/irix_kmem.h>
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#include <compat/irix/irix_sysmp.h>
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/*
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* We have no idea of theses value's meaning yet, but time will come
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*/
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long irix_kernel_var[32] = { 0x7fff2fc8, 0x0fb72194, 0x00000000, 0x0fb68890,
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0x7fff2f74, 0x7fff2fc8, 0x7fff2fc8, 0x7fff2f74,
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0x7fff2f7c, 0x0fb7246c, 0x0fbd9178, 0x0fb910d4,
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0x0fb65440, 0x00000800, 0x00400034, 0x0000000a,
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0x00000008, 0x0fb73fb0, 0x00000000, 0x00000000,
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0x00000000, 0x7fff3000, 0x00000001, 0x7fff2f74,
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0x7fff2d24, 0x0fa85880, 0x00000001, 0x0fb60188,
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0x00000004, 0x00000000, 0x00000000, 0x00000001,
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};
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struct irix_kmem_softc {
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struct device irix_kmem_dev;
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};
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dev_type_open(irix_kmemopen);
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dev_type_close(irix_kmemclose);
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dev_type_read(irix_kmemread);
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dev_type_write(irix_kmemwrite);
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const struct cdevsw irix_kmem_cdevsw = {
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irix_kmemopen, irix_kmemclose, irix_kmemread, irix_kmemwrite,
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noioctl, nostop, notty, nopoll, nommap, nokqfilter,
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};
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void
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irix_kmemattach(struct device *parent, struct device *self, void *aux)
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{
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return;
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}
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int
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irix_kmemopen(dev_t dev, int flags, int fmt, struct lwp *l)
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{
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return 0;
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}
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int
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irix_kmemread(dev_t dev, struct uio *uio, int flag)
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{
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void *buf = NULL;
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off_t buflen = 0;
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void *offset;
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int error = 0;
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#ifdef DEBUG_IRIX
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printf("irix_kmemread(): offset = 0x%08lx\n", (long)uio->uio_offset);
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printf("irix_kmemread(): addr = %p\n", uio->uio_iov->iov_base);
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printf("irix_kmemread(): len = 0x%08lx\n", (long)uio->uio_iov->iov_len);
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#endif
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offset = (void *)(uint32_t)uio->uio_offset; /* XXX */
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if (offset == &averunnable) { /* load average */
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struct irix_loadavg iav;
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int scale = averunnable.fscale / IRIX_LOADAVG_SCALE;
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(void)memset(&iav, 0, sizeof(iav));
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iav.ldavg[0] = averunnable.ldavg[0] / scale;
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iav.ldavg[1] = averunnable.ldavg[1] / scale;
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iav.ldavg[2] = averunnable.ldavg[2] / scale;
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buf = (void *)&iav;
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buflen = sizeof(iav);
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}
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if (offset == &irix_kernel_var) { /* kernel variables */
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buf = &irix_kernel_var;
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buflen = sizeof(irix_kernel_var);
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}
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if (buflen != 0)
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error = uiomove(buf, buflen, uio);
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return error;
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}
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int
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irix_kmemwrite(dev_t dev, struct uio *uio, int flag)
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{
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return 0;
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}
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int
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irix_kmemclose(dev_t dev, int flags, int fmt, struct lwp *l)
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{
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return 0;
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}
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