NetBSD/sys/compat/irix/irix_kmem.c

155 lines
4.6 KiB
C

/* $NetBSD: irix_kmem.c,v 1.4 2002/10/23 09:12:53 jdolecek Exp $ */
/*-
* Copyright (c) 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_kmem.c,v 1.4 2002/10/23 09:12:53 jdolecek Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/device.h>
#include <sys/vnode.h>
#include <sys/conf.h>
#include <compat/irix/irix_kmem.h>
#include <compat/irix/irix_sysmp.h>
/*
* We have no idea of theses value's meaning yet, but time will come
*/
long irix_kernel_var[32] = { 0x7fff2fc8, 0x0fb72194, 0x00000000, 0x0fb68890,
0x7fff2f74, 0x7fff2fc8, 0x7fff2fc8, 0x7fff2f74,
0x7fff2f7c, 0x0fb7246c, 0x0fbd9178, 0x0fb910d4,
0x0fb65440, 0x00000800, 0x00400034, 0x0000000a,
0x00000008, 0x0fb73fb0, 0x00000000, 0x00000000,
0x00000000, 0x7fff3000, 0x00000001, 0x7fff2f74,
0x7fff2d24, 0x0fa85880, 0x00000001, 0x0fb60188,
0x00000004, 0x00000000, 0x00000000, 0x00000001,
};
struct irix_kmem_softc {
struct device irix_kmem_dev;
};
dev_type_open(irix_kmemopen);
dev_type_close(irix_kmemclose);
dev_type_read(irix_kmemread);
dev_type_write(irix_kmemwrite);
const struct cdevsw irix_kmem_cdevsw = {
irix_kmemopen, irix_kmemclose, irix_kmemread, irix_kmemwrite,
noioctl, nostop, notty, nopoll, nommap, nokqfilter,
};
void
irix_kmemattach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
return;
}
int
irix_kmemopen(dev, flags, fmt, p)
dev_t dev;
int flags, fmt;
struct proc *p;
{
return 0;
}
int
irix_kmemread(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
void *buf = NULL;
off_t buflen = 0;
void *offset;
int error = 0;
#ifdef DEBUG_IRIX
printf("irix_kmemread(): offset = 0x%08lx\n", (long)uio->uio_offset);
printf("irix_kmemread(): addr = %p\n", uio->uio_iov->iov_base);
printf("irix_kmemread(): len = 0x%08lx\n", (long)uio->uio_iov->iov_len);
#endif
offset = (void *)(uint32_t)uio->uio_offset; /* XXX */
if (offset == &averunnable) { /* load average */
struct irix_loadavg iav;
int scale = averunnable.fscale / IRIX_LOADAVG_SCALE;
(void)memset(&iav, 0, sizeof(iav));
iav.ldavg[0] = averunnable.ldavg[0] / scale;
iav.ldavg[1] = averunnable.ldavg[1] / scale;
iav.ldavg[2] = averunnable.ldavg[2] / scale;
buf = (void *)&iav;
buflen = sizeof(iav);
}
if (offset == &irix_kernel_var) { /* kernel variables */
buf = &irix_kernel_var;
buflen = sizeof(irix_kernel_var);
}
if (buflen != 0)
error = uiomove(buf, buflen, uio);
return error;
}
int
irix_kmemwrite(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
return 0;
}
int
irix_kmemclose(dev, flags, fmt, p)
dev_t dev;
int flags, fmt;
struct proc *p;
{
return 0;
}