1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
/* $OpenBSD: cpu.h,v 1.12 2005/12/11 21:45:28 miod Exp $ */
/*
* Copyright (c) 1996 Nivas Madhur
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef __M88K_CPU_H__
#define __M88K_CPU_H__
/*
* CTL_MACHDEP definitinos.
*/
#define CPU_CONSDEV 1 /* dev_t: console terminal device */
#define CPU_MAXID 2 /* number of valid machdep ids */
#define CTL_MACHDEP_NAMES { \
{ 0, 0 }, \
{ "console_device", CTLTYPE_STRUCT }, \
}
#ifdef _KERNEL
#include <machine/pcb.h>
#include <machine/psl.h>
#include <machine/intr.h>
#include <sys/sched.h>
#if defined(MULTIPROCESSOR)
#if !defined(MAX_CPUS) || MAX_CPUS > 4
#undef MAX_CPUS
#define MAX_CPUS 4
#endif
#else
#undef MAX_CPUS
#define MAX_CPUS 1
#endif
#ifndef _LOCORE
extern u_int max_cpus;
/*
* Per-CPU data structure
*/
struct cpu_info {
u_int ci_alive; /* nonzero if CPU present */
struct proc *ci_curproc; /* current process... */
struct pcb *ci_curpcb; /* ...and its pcb */
u_int ci_cpuid; /* cpu number */
u_int ci_primary; /* set if master cpu */
struct schedstate_percpu ci_schedstate; /* scheduling state */
int ci_want_resched; /* need_resched() invoked */
struct pcb *ci_idle_pcb; /* idle pcb (and stack) */
u_int ci_intrdepth; /* interrupt depth */
u_long ci_spin_locks; /* spin locks counter */
volatile int ci_ddb_state; /* ddb status */
#define CI_DDB_RUNNING 0
#define CI_DDB_ENTERDDB 1
#define CI_DDB_INDDB 2
};
extern cpuid_t master_cpu;
extern struct cpu_info m88k_cpus[MAX_CPUS];
#define CPU_INFO_ITERATOR cpuid_t
#define CPU_INFO_FOREACH(cii, ci) \
for ((cii) = 0; (cii) < MAX_CPUS; (cii)++) \
if (((ci) = &m88k_cpus[cii])->ci_alive != 0)
#define CPU_INFO_UNIT(ci) ((ci)->ci_cpuid)
#if defined(MULTIPROCESSOR)
#define curcpu() \
({ \
struct cpu_info *cpuptr; \
\
__asm__ __volatile__ ("ldcr %0, cr17" : "=r" (cpuptr)); \
cpuptr; \
})
#define CPU_IS_PRIMARY(ci) ((ci)->ci_primary != 0)
void cpu_boot_secondary_processors(void);
#else /* MULTIPROCESSOR */
#define curcpu() (&m88k_cpus[0])
#define CPU_IS_PRIMARY(ci) 1
#endif /* MULTIPROCESSOR */
/*
* The md code may hardcode this in some very specific situations.
*/
#if !defined(cpu_number)
#define cpu_number() curcpu()->ci_cpuid
#endif
#define curpcb curcpu()->ci_curpcb
#endif /* _LOCORE */
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define cpu_exec(p) do { /* nothing */ } while (0)
#define cpu_wait(p) do { /* nothing */ } while (0)
#define cpu_swapin(p) do { /* nothing */ } while (0)
#define cpu_swapout(p) do { /* nothing */ } while (0)
#if defined(MULTIPROCESSOR)
#include <sys/lock.h>
#include <sys/mplock.h>
#endif
/*
* Arguments to hardclock and gatherstats encapsulate the previous
* machine state in an opaque clockframe. CLKF_INTR is only valid
* if the process is in kernel mode. Clockframe is really trapframe,
* so pointer to clockframe can be safely cast into a pointer to
* trapframe.
*/
struct clockframe {
struct trapframe tf;
};
#define CLKF_USERMODE(framep) (((framep)->tf.tf_epsr & PSR_MODE) == 0)
#define CLKF_PC(framep) ((framep)->tf.tf_sxip & XIP_ADDR)
#define CLKF_INTR(framep) \
(((struct cpu_info *)(framep)->tf.tf_cpu)->ci_intrdepth > 1)
/*
* Get interrupt glue.
*/
#include <machine/intr.h>
#define SIR_NET 1
#define SIR_CLOCK 2
#ifdef MULTIPROCESSOR
extern void setsoftint(int);
extern int clrsoftint(int);
#else
extern int ssir;
#define setsoftint(x) (ssir |= (x))
#define clrsoftint(x) \
({ \
int tmpsir = ssir & (x); \
ssir ^= tmpsir; \
tmpsir; \
})
#endif /* MULTIPROCESSOR */
#define setsoftnet() setsoftint(SIR_NET)
#define setsoftclock() setsoftint(SIR_CLOCK)
#define aston(p) ((p)->p_md.md_astpending = 1)
/*
* Preempt the current process if in interrupt from user mode,
* or after the current trap/syscall if in system mode.
*/
#define need_resched(ci) \
do { \
ci->ci_want_resched = 1; \
if (ci->ci_curproc != NULL) \
aston(ci->ci_curproc); \
} while (0)
/*
* Give a profiling tick to the current process when the user profiling
* buffer pages are invalid. On the m88k, request an ast to send us
* through trap(), marking the proc as needing a profiling tick.
*/
#define need_proftick(p) ((p)->p_flag |= P_OWEUPC, aston(p))
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) aston(p)
/*
* switchframe - should be double word aligned.
*/
struct switchframe {
u_int sf_pc; /* pc */
void *sf_proc; /* proc pointer */
};
int badvaddr(vaddr_t, int);
void nmihand(void *);
#endif /* _KERNEL */
#endif /* __M88K_CPU_H__ */
|
