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mem.c (10537) mem.c (10624)
1/*-
2 * Copyright (c) 1988 University of Utah.
3 * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * the Systems Programming Group of the University of Utah Computer
8 * Science Department, and code derived from software contributed to

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33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 * from: Utah $Hdr: mem.c 1.13 89/10/08$
40 * from: @(#)mem.c 7.2 (Berkeley) 5/9/91
1/*-
2 * Copyright (c) 1988 University of Utah.
3 * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * the Systems Programming Group of the University of Utah Computer
8 * Science Department, and code derived from software contributed to

--- 24 unchanged lines hidden (view full) ---

33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 * from: Utah $Hdr: mem.c 1.13 89/10/08$
40 * from: @(#)mem.c 7.2 (Berkeley) 5/9/91
41 * $Id: mem.c,v 1.9 1994/08/06 10:25:34 davidg Exp $
41 * $Id: mem.c,v 1.10 1995/09/03 05:43:04 julian Exp $
42 */
43
44/*
45 * Memory special file
46 */
47
48#include <sys/param.h>
49#include <sys/conf.h>

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80SYSINIT(memdev,SI_SUB_DEVFS, SI_ORDER_ANY, memdev_init, NULL)
81#endif /*DEVFS*/
82
83
84
85extern char *ptvmmap; /* poor name! */
86/*ARGSUSED*/
87int
42 */
43
44/*
45 * Memory special file
46 */
47
48#include <sys/param.h>
49#include <sys/conf.h>

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80SYSINIT(memdev,SI_SUB_DEVFS, SI_ORDER_ANY, memdev_init, NULL)
81#endif /*DEVFS*/
82
83
84
85extern char *ptvmmap; /* poor name! */
86/*ARGSUSED*/
87int
88mmclose(dev, uio, flags)
88mmclose(dev, flags, fmt, p)
89 dev_t dev;
89 dev_t dev;
90 struct uio *uio;
91 int flags;
90 int flags;
91 int fmt;
92 struct proc *p;
92{
93 struct trapframe *fp;
94
95 switch (minor(dev)) {
96 case 14:
97 fp = (struct trapframe *)curproc->p_md.md_regs;
98 fp->tf_eflags &= ~PSL_IOPL;
99 break;
100 default:
101 break;
102 }
103 return(0);
104}
105/*ARGSUSED*/
106int
93{
94 struct trapframe *fp;
95
96 switch (minor(dev)) {
97 case 14:
98 fp = (struct trapframe *)curproc->p_md.md_regs;
99 fp->tf_eflags &= ~PSL_IOPL;
100 break;
101 default:
102 break;
103 }
104 return(0);
105}
106/*ARGSUSED*/
107int
107mmopen(dev, uio, flags)
108mmopen(dev, flags, fmt, p)
108 dev_t dev;
109 dev_t dev;
109 struct uio *uio;
110 int flags;
110 int flags;
111 int fmt;
112 struct proc *p;
111{
112 struct trapframe *fp;
113
114 switch (minor(dev)) {
115 case 14:
116 fp = (struct trapframe *)curproc->p_md.md_regs;
117 fp->tf_eflags |= PSL_IOPL;
118 break;

--- 162 unchanged lines hidden --- 		113{
114 struct trapframe *fp;
115
116 switch (minor(dev)) {
117 case 14:
118 fp = (struct trapframe *)curproc->p_md.md_regs;
119 fp->tf_eflags |= PSL_IOPL;
120 break;

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