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
|
typedef struct Conf Conf;
typedef struct Confmem Confmem;
typedef struct FPsave FPsave;
typedef struct PFPU PFPU;
typedef struct L1 L1;
typedef struct Label Label;
typedef struct Lock Lock;
typedef struct KMap KMap;
typedef struct MMMU MMMU;
typedef struct Mach Mach;
typedef struct Page Page;
typedef struct Proc Proc;
typedef struct PMMU PMMU;
typedef struct Ureg Ureg;
typedef struct ISAConf ISAConf;
typedef uvlong Tval;
#pragma incomplete Ureg
#define MAXSYSARG 5 /* for mount(fd, mpt, flag, arg, srv) */
#define AOUT_MAGIC (E_MAGIC)
struct Lock
{
ulong key;
u32int sr;
uintptr pc;
Proc* p;
Mach* m;
int isilock;
};
struct Label
{
uintptr sp;
uintptr pc;
};
struct FPsave
{
ulong exc, scr;
uchar regs[256];
};
struct PFPU
{
int fpstate;
FPsave fpsave[1];
};
enum
{
FPinit,
FPactive,
FPinactive,
FPillegal = 0x100
};
struct Confmem
{
uintptr base;
ulong npage;
uintptr kbase;
uintptr klimit;
};
struct Conf
{
ulong nmach; /* processors */
ulong nproc; /* processes */
Confmem mem[2]; /* physical memory */
ulong npage; /* total physical pages of memory */
ulong upages; /* user page pool */
ulong copymode; /* 0 is copy on write, 1 is copy on reference */
ulong ialloc; /* max interrupt time allocation in bytes */
ulong pipeqsize; /* size in bytes of pipe queues */
ulong nimage; /* number of page cache image headers */
ulong nswap; /* number of swap pages */
int nswppo; /* max # of pageouts per segment pass */
int monitor;
};
/*
* MMU stuff in proc
*/
#define NCOLOR 1
struct PMMU
{
L1 *l1;
Page *mmuused, *mmufree;
int nkmap;
Page *kmaptable;
};
#include "../port/portdat.h"
struct L1
{
Ref;
uintptr pa;
ulong *va;
L1 *next;
};
struct MMMU
{
L1 l1;
L1 *l1free;
int nfree;
uchar asid;
};
struct Mach
{
int machno; /* physical id of processor */
uintptr splpc; /* pc of last caller to splhi */
Proc* proc; /* current process */
ulong excregs[3];
ulong cycleshi;
/* end of known to assembly */
MMMU;
PMach;
int lastintr;
int cpumhz;
uvlong cpuhz; /* speed of cpu */
uintptr stack[1];
};
#define NISAOPT 8
struct ISAConf
{
char *type;
ulong port;
int irq;
int nopt;
char *opt[NISAOPT];
};
#define BUSUNKNOWN -1
struct
{
char machs[MAXMACH]; /* active CPUs */
int exiting; /* shutdown */
}active;
extern register Mach* m; /* R10 */
extern register Proc* up; /* R9 */
extern int normalprint;
extern ulong *mpcore, *slcr;
void nope(void);
#define NOPE nope();
/*
* hardware info about a device
*/
typedef struct {
ulong port;
int size;
} Devport;
struct DevConf
{
ulong intnum; /* interrupt number */
char *type; /* card type, malloced */
int nports; /* Number of ports */
Devport *ports; /* The ports themselves */
};
|
