1 /* $NetBSD: cpu.h,v 1.13 2019/12/01 15:34:46 ad Exp $ */
2
3 /*-
4 * Copyright (c) 2007 Jared D. McNeill <jmcneill@invisible.ca>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #ifndef _ARCH_USERMODE_INCLUDE_CPU_H
30 #define _ARCH_USERMODE_INCLUDE_CPU_H
31
32 #include <sys/device.h>
33 #include <sys/cpu_data.h>
34
35 #include <machine/intrdefs.h>
36
37 extern void cpu_signotify(struct lwp *);
38 extern void cpu_need_proftick(struct lwp *);
39 extern void userret(struct lwp *);
40
41 #define curcpu() usermode_curcpu()
42 #define cpu_number() 0
43
44 #define cpu_proc_fork(p1, p2)
45
46 struct cpu_info;
47 extern int astpending;
48 #define aston(ci) (astpending++)
49 extern void kgdb_port_init(void);
50
51 struct cpu_info {
52 struct cpu_data ci_data; /* MI per-cpu data */
53 device_t ci_dev; /* pointer to our device */
54 struct cpu_info *ci_self;
55 struct cpu_info *ci_next;
56 u_int ci_cpuid;
57 int ci_want_resched;
58 int ci_idepth;
59 volatile int ci_mtx_count;
60 volatile int ci_mtx_oldspl;
61 lwp_t *ci_onproc; /* current user LWP / kthread */
62 lwp_t *ci_curlwp;
63 lwp_t *ci_stash;
64 };
65
66 __inline static struct cpu_info * __attribute__((__unused__))
usermode_curcpu(void)67 usermode_curcpu(void)
68 {
69 extern struct cpu_info cpu_info_primary;
70
71 return &cpu_info_primary;
72 }
73
74 __inline static void
usermode_delay(unsigned int ms)75 usermode_delay(unsigned int ms)
76 {
77 extern int thunk_usleep(unsigned int);
78 thunk_usleep(ms);
79 }
80
81 #define delay(ms) usermode_delay(ms)
82 #define DELAY(ms) usermode_delay(ms)
83
84 /* XXXJDM */
85 struct clockframe {
86 uint8_t cf_dummy;
87 };
88
89 #define CLKF_USERMODE(frame) 0
90 #define CLKF_PC(frame) 0
91 #define CLKF_INTR(frame) 0
92
93 #endif /* !_ARCH_USERMODE_INCLUDE_CPU_H */
94