FreeBSD/Linux Kernel Cross Reference
sys/mips/include/cpu.h
1 /* $OpenBSD: cpu.h,v 1.4 1998/09/15 10:50:12 pefo Exp $ */
2
3 /*-
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell and Rick Macklem.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * Copyright (C) 1989 Digital Equipment Corporation.
35 * Permission to use, copy, modify, and distribute this software and
36 * its documentation for any purpose and without fee is hereby granted,
37 * provided that the above copyright notice appears in all copies.
38 * Digital Equipment Corporation makes no representations about the
39 * suitability of this software for any purpose. It is provided "as is"
40 * without express or implied warranty.
41 *
42 * from: @(#)cpu.h 8.4 (Berkeley) 1/4/94
43 * JNPR: cpu.h,v 1.9.2.2 2007/09/10 08:23:46 girish
44 * $FreeBSD: releng/9.0/sys/mips/include/cpu.h 210158 2010-07-16 06:09:51Z imp $
45 */
46
47 #ifndef _MACHINE_CPU_H_
48 #define _MACHINE_CPU_H_
49
50 #include <machine/endian.h>
51
52 /* BEGIN: these are going away */
53
54 #define SR_KSU_MASK 0x00000018
55 #define SR_KSU_USER 0x00000010
56 #define SR_KSU_SUPER 0x00000008
57 #define SR_KSU_KERNEL 0x00000000
58
59 #define soft_int_mask(softintr) (1 << ((softintr) + 8))
60 #define hard_int_mask(hardintr) (1 << ((hardintr) + 10))
61
62 /* END: These are going away */
63
64 /*
65 * Exported definitions unique to mips cpu support.
66 */
67
68 #ifndef _LOCORE
69 #include <machine/cpufunc.h>
70 #include <machine/frame.h>
71
72 #define TRAPF_USERMODE(framep) (((framep)->sr & SR_KSU_USER) != 0)
73 #define TRAPF_PC(framep) ((framep)->pc)
74 #define cpu_getstack(td) ((td)->td_frame->sp)
75 #define cpu_setstack(td, nsp) ((td)->td_frame->sp = (nsp))
76 #define cpu_spinwait() /* nothing */
77
78 /*
79 * A machine-independent interface to the CPU's counter.
80 */
81 #define get_cyclecount() mips_rd_count()
82 #endif /* !_LOCORE */
83
84 #if defined(_KERNEL) && !defined(_LOCORE)
85
86 extern char btext[];
87 extern char etext[];
88
89 void swi_vm(void *);
90 void cpu_halt(void);
91 void cpu_reset(void);
92
93 #endif /* _KERNEL */
94 #endif /* !_MACHINE_CPU_H_ */
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