1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1994 S��ren Schmidt
5 * Copyright (c) 1995 Steven Wallace
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer
13 *    in this position and unchanged.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. The name of the author may not be used to endorse or promote products
18 *    derived from this software without specific prior written permission
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD$");
34
35#include <sys/param.h>
36#include <sys/lock.h>
37#include <sys/mutex.h>
38#include <sys/systm.h>
39#include <sys/sysctl.h>
40
41#include <i386/ibcs2/ibcs2_types.h>
42#include <i386/ibcs2/ibcs2_signal.h>
43#include <i386/ibcs2/ibcs2_util.h>
44#include <i386/ibcs2/ibcs2_proto.h>
45
46#define IBCS2_FP_NO     0       /* no fp support */
47#define IBCS2_FP_SW     1       /* software emulator */
48#define IBCS2_FP_287    2       /* 80287 FPU */
49#define IBCS2_FP_387    3       /* 80387 FPU */
50
51#define SI86_FPHW	40
52#define STIME		54
53#define SETNAME		56
54#define SI86_MEM	65
55
56extern int hw_float;
57
58int
59ibcs2_sysi86(struct thread *td, struct ibcs2_sysi86_args *args)
60{
61	switch (args->cmd) {
62	case SI86_FPHW: {	/* Floating Point information */
63		int val, error;
64
65		if (hw_float)
66			val = IBCS2_FP_387;
67		else
68			val = IBCS2_FP_NO;
69		if ((error = copyout(&val, args->arg, sizeof(val))) != 0)
70			return error;
71		return 0;
72		}
73
74        case STIME:       /* set the system time given pointer to long */
75	  /* gettimeofday; time.tv_sec = *args->arg; settimeofday */
76	        return EINVAL;
77
78	case SETNAME:  {  /* set hostname given string w/ len <= 7 chars */
79	        int name[2];
80
81		name[0] = CTL_KERN;
82		name[1] = KERN_HOSTNAME;
83		return (userland_sysctl(td, name, 2, 0, 0, 0,
84		    args->arg, 7, 0, 0));
85	}
86
87	case SI86_MEM:	/* size of physical memory */
88		td->td_retval[0] = ctob(physmem);
89		return 0;
90
91	default:
92#ifdef DIAGNOSTIC
93		printf("IBCS2: 'sysi86' function %d(0x%x) "
94			"not implemented yet\n", args->cmd, args->cmd);
95#endif
96		return EINVAL;
97	}
98}
99