1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
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 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * from: @(#)cpu.h 5.4 (Berkeley) 5/9/91
| 1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
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 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * from: @(#)cpu.h 5.4 (Berkeley) 5/9/91
|
34 */
35
36#ifndef _MACHINE_CPU_H_
37#define _MACHINE_CPU_H_
38
39/*
40 * Definitions unique to i386 cpu support.
41 */
42#include <machine/psl.h>
43#include <machine/frame.h>
44#include <machine/segments.h>
45
46#define cpu_exec(p) /* nothing */
47#define cpu_swapin(p) /* nothing */
48#define cpu_getstack(td) ((td)->td_frame->tf_esp)
49#define cpu_setstack(td, ap) ((td)->td_frame->tf_esp = (ap))
50#define cpu_spinwait() ia32_pause()
51
52#define TRAPF_USERMODE(framep) \
53 ((ISPL((framep)->tf_cs) == SEL_UPL) || ((framep)->tf_eflags & PSL_VM))
54#define TRAPF_PC(framep) ((framep)->tf_eip)
55
56#ifdef _KERNEL
57extern char btext[];
58extern char etext[];
59extern int tsc_present;
60
61void cpu_halt(void);
62void cpu_reset(void);
63void fork_trampoline(void);
64void swi_vm(void *);
65
66/*
67 * Return contents of in-cpu fast counter as a sort of "bogo-time"
68 * for random-harvesting purposes.
69 */
70static __inline uint64_t
71get_cyclecount(void)
72{
| 34 */
35
36#ifndef _MACHINE_CPU_H_
37#define _MACHINE_CPU_H_
38
39/*
40 * Definitions unique to i386 cpu support.
41 */
42#include <machine/psl.h>
43#include <machine/frame.h>
44#include <machine/segments.h>
45
46#define cpu_exec(p) /* nothing */
47#define cpu_swapin(p) /* nothing */
48#define cpu_getstack(td) ((td)->td_frame->tf_esp)
49#define cpu_setstack(td, ap) ((td)->td_frame->tf_esp = (ap))
50#define cpu_spinwait() ia32_pause()
51
52#define TRAPF_USERMODE(framep) \
53 ((ISPL((framep)->tf_cs) == SEL_UPL) || ((framep)->tf_eflags & PSL_VM))
54#define TRAPF_PC(framep) ((framep)->tf_eip)
55
56#ifdef _KERNEL
57extern char btext[];
58extern char etext[];
59extern int tsc_present;
60
61void cpu_halt(void);
62void cpu_reset(void);
63void fork_trampoline(void);
64void swi_vm(void *);
65
66/*
67 * Return contents of in-cpu fast counter as a sort of "bogo-time"
68 * for random-harvesting purposes.
69 */
70static __inline uint64_t
71get_cyclecount(void)
72{
|