cpu.h revision 340270 
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
33 *	from: FreeBSD: src/sys/i386/include/cpu.h,v 1.62 2001/06/29
34 * $FreeBSD: stable/11/sys/sparc64/include/cpu.h 340270 2018-11-08 22:42:55Z jhb $
35 */
36
37#ifndef	_MACHINE_CPU_H_
38#define	_MACHINE_CPU_H_
39
40#include <machine/frame.h>
41#include <machine/tstate.h>
42
43#define	TRAPF_PC(tfp)		((tfp)->tf_tpc)
44#define	TRAPF_USERMODE(tfp)	(((tfp)->tf_tstate & TSTATE_PRIV) == 0)
45
46#define	cpu_getstack(td)	((td)->td_frame->tf_sp)
47#define	cpu_setstack(td, sp)	((td)->td_frame->tf_sp = (sp))
48#define	cpu_spinwait()		/* nothing */
49#define	cpu_lock_delay()	DELAY(1)
50
51#ifdef _KERNEL
52
53extern	char btext[];
54extern	char etext[];
55
56void	cheetah_init(u_int cpu_impl);
57void	cpu_halt(void) __dead2;
58void	cpu_reset(void) __dead2;
59void	fork_trampoline(void);
60void	swi_vm(void *v);
61void	zeus_init(u_int cpu_impl);
62
63static __inline u_int64_t
64get_cyclecount(void)
65{
66
67	return (rd(tick));
68}
69
70#endif
71
72#endif /* !_MACHINE_CPU_H_ */
73