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
|
/*
* Copyright 1996 The Australian National University.
* Copyright 1996 Fujitsu Laboratories Limited
*
* This software may be distributed under the terms of the Gnu
* Public License version 2 or later
*/
/*
* Initialize the AP1000 hardware: BIF, MSC+, MC+, etc.
*/
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/malloc.h>
#include <linux/mpp.h>
#include <asm/irq.h>
#include <asm/ap1000/apservice.h>
#include <asm/ap1000/apreg.h>
#define APLOG 0
/* these make using CellOS code easier */
int cap_nopt0;
int cap_cid0;
int cap_ncel0;
unsigned _cid, _ncel, _ncelx, _ncely, _cidx, _cidy;
/* yuck - needed for sun4c! */
static unsigned char dummy;
unsigned char *auxio_register = &dummy;
extern struct cap_init cap_init;
static void unexpected_irq(int irq, void *dev_id, struct pt_regs *regs)
{
ap_panic("** unexpected interrupt %d **\n",irq);
}
static void ap_other_irqs(void)
{
request_irq(3, unexpected_irq, SA_INTERRUPT, "unused", 0);
request_irq(5, unexpected_irq, SA_INTERRUPT, "unused", 0);
request_irq(12, unexpected_irq, SA_INTERRUPT, "unused", 0);
request_irq(15, unexpected_irq, SA_INTERRUPT, "unused", 0);
}
int ap_memory_size(void)
{
if ((MSC_IN(MSC_SIMMCHK) & MSC_SIMMCHK_MASK) == 0) {
return 16*1024*1024;
}
return 64*1024*1024;
}
static void show_registers(void)
{
extern struct pt_regs *bif_pt_regs;
if (bif_pt_regs)
show_regs(bif_pt_regs);
else
printk("unable to show registers\n");
}
static void check_alive(void)
{
printk("Cell %d is alive\n",mpp_cid());
}
static void show_task(struct task_struct *t)
{
printk("cell=%3d uid=%5d pid=%5d utime=%3d stime=%3d etime=%3d name=%s\n",
mpp_cid(),
t->uid,
(int)t->pid,
(int)t->utime,
(int)t->stime,
(jiffies - (int)t->start_time) / 100,
t->comm);
}
static void show_ptasks(void)
{
extern struct task_struct *task[];
struct task_struct *p;
int i;
int count=0;
read_lock(&tasklist_lock);
for_each_task(p) {
struct task_struct **tp = p->tarray_ptr;
if(tp >= &task[MPP_TASK_BASE]) {
show_task(p);
count++;
}
}
read_unlock(&tasklist_lock);
if (count == 0)
printk("no parallel tasks on cell %d\n",mpp_cid());
}
static void show_utasks(void)
{
extern struct task_struct *task[];
struct task_struct *p;
int i;
int count=0;
read_lock(&tasklist_lock);
for_each_task(p) {
if(p->uid > 1) {
show_task(task[i]);
count++;
}
}
read_unlock(&tasklist_lock);
if (count == 0)
printk("no user tasks on cell %d\n",mpp_cid());
}
static void show_otasks(void)
{
extern struct task_struct *task[];
struct task_struct *p;
int i;
int count=0;
extern int ap_current_uid;
read_lock(&tasklist_lock);
for_each_task(p) {
if(p->uid == ap_current_uid) {
show_task(task[i]);
count++;
}
}
read_unlock(&tasklist_lock);
if (count == 0)
printk("no tasks on cell %d\n",mpp_cid());
}
void do_panic(void)
{
int *x = 0;
*x = 1; /* uggh */
}
void mpp_hw_init(void)
{
extern void show_state(void);
extern void breakpoint(void);
extern void ctrl_alt_del(void);
extern void mac_print_state(void);
extern void show_debug_keys(void);
bif_add_debug_key('c',check_alive,"check if a cell is alive");
bif_add_debug_key('k',show_debug_keys,"show the kernel debug keys");
bif_add_debug_key('p',show_registers,"show register info");
bif_add_debug_key('p',show_registers,"show register info");
bif_add_debug_key('m',show_mem,"detailed memory stats");
bif_add_debug_key('s',show_state,"detailed process stats");
bif_add_debug_key('D',ap_start_debugger,"launch the kernel debugger");
bif_add_debug_key('i',breakpoint,"send a breakpoint");
bif_add_debug_key('r',ctrl_alt_del,"run shutdown (doesn't work)");
bif_add_debug_key('P',show_ptasks,"show running parallel tasks");
bif_add_debug_key('U',show_utasks,"show all user tasks");
bif_add_debug_key('O',show_otasks,"show own user tasks");
bif_add_debug_key('^',do_panic,"panic :-)");
cap_cid0 = BIF_IN(BIF_CIDR1);
cap_ncel0 = cap_init.numcells;
_cid = cap_cid0;
_ncel = cap_ncel0;
_ncelx = _ncel<8?_ncel:8;
_ncely = ((_ncel-1) / _ncelx) + 1;
_cidx = _cid % _ncelx;
_cidy = _cid / _ncelx;
ap_bif_init();
ap_msc_init();
ap_tnet_init();
ap_profile_init();
ap_other_irqs();
ap_ringbuf_init();
#if APLOG
ap_log(NULL,-1);
#endif
}
|
