2 * linux/arch/mips/kernel/proc.c
4 * Copyright (C) 1995, 1996, 2001 Ralf Baechle
5 * Copyright (C) 2001 MIPS Technologies, Inc.
7 #include <linux/config.h>
8 #include <linux/delay.h>
9 #include <linux/kernel.h>
10 #include <linux/sched.h>
11 #include <linux/seq_file.h>
12 #include <asm/bootinfo.h>
14 #include <asm/cpu-features.h>
15 #include <asm/mipsregs.h>
16 #include <asm/processor.h>
17 #include <asm/watch.h>
19 unsigned int vced_count
, vcei_count
;
21 static const char *cpu_name
[] = {
22 [CPU_UNKNOWN
] "unknown",
25 [CPU_R3000A
] "R3000A",
30 [CPU_R3081E
] "R3081E",
31 [CPU_R4000PC
] "R4000PC",
32 [CPU_R4000SC
] "R4000SC",
33 [CPU_R4000MC
] "R4000MC",
35 [CPU_R4400PC
] "R4400PC",
36 [CPU_R4400SC
] "R4400SC",
37 [CPU_R4400MC
] "R4400MC",
40 [CPU_R6000A
] "R6000A",
42 [CPU_R10000
] "R10000",
43 [CPU_R12000
] "R12000",
48 [CPU_R5000A
] "R5000A",
50 [CPU_NEVADA
] "Nevada",
51 [CPU_RM7000
] "RM7000",
52 [CPU_RM9000
] "RM9000",
57 [CPU_SB1
] "SiByte SB1",
58 [CPU_TX3912
] "TX3912",
59 [CPU_TX3922
] "TX3922",
60 [CPU_TX3927
] "TX3927",
61 [CPU_AU1000
] "Au1000",
62 [CPU_AU1500
] "Au1500",
63 [CPU_AU1100
] "Au1100",
64 [CPU_AU1550
] "Au1550",
65 [CPU_AU1200
] "Au1200",
66 [CPU_4KEC
] "MIPS 4KEc",
67 [CPU_4KSC
] "MIPS 4KSc",
68 [CPU_VR41XX
] "NEC Vr41xx",
70 [CPU_TX49XX
] "TX49xx",
71 [CPU_20KC
] "MIPS 20Kc",
73 [CPU_25KF
] "MIPS 25Kf",
74 [CPU_VR4111
] "NEC VR4111",
75 [CPU_VR4121
] "NEC VR4121",
76 [CPU_VR4122
] "NEC VR4122",
77 [CPU_VR4131
] "NEC VR4131",
78 [CPU_VR4133
] "NEC VR4133",
79 [CPU_VR4181
] "NEC VR4181",
80 [CPU_VR4181A
] "NEC VR4181A",
81 [CPU_SR71000
] "Sandcraft SR71000"
85 static int show_cpuinfo(struct seq_file
*m
, void *v
)
87 unsigned int version
= current_cpu_data
.processor_id
;
88 unsigned int fp_vers
= current_cpu_data
.fpu_id
;
89 unsigned long n
= (unsigned long) v
- 1;
93 if (!cpu_isset(n
, cpu_online_map
))
98 * For the first processor also print the system type
101 seq_printf(m
, "system type\t\t: %s\n", get_system_type());
103 seq_printf(m
, "processor\t\t: %ld\n", n
);
104 sprintf(fmt
, "cpu model\t\t: %%s V%%d.%%d%s\n",
105 cpu_has_fpu
? " FPU V%d.%d" : "");
106 seq_printf(m
, fmt
, cpu_name
[current_cpu_data
.cputype
<= CPU_LAST
?
107 current_cpu_data
.cputype
: CPU_UNKNOWN
],
108 (version
>> 4) & 0x0f, version
& 0x0f,
109 (fp_vers
>> 4) & 0x0f, fp_vers
& 0x0f);
110 seq_printf(m
, "BogoMIPS\t\t: %lu.%02lu\n",
111 cpu_data
[n
].udelay_val
/ (500000/HZ
),
112 (cpu_data
[n
].udelay_val
/ (5000/HZ
)) % 100);
113 seq_printf(m
, "wait instruction\t: %s\n", cpu_wait
? "yes" : "no");
114 seq_printf(m
, "microsecond timers\t: %s\n",
115 cpu_has_counter
? "yes" : "no");
116 seq_printf(m
, "tlb_entries\t\t: %d\n", current_cpu_data
.tlbsize
);
117 seq_printf(m
, "extra interrupt vector\t: %s\n",
118 cpu_has_divec
? "yes" : "no");
119 seq_printf(m
, "hardware watchpoint\t: %s\n",
120 cpu_has_watch
? "yes" : "no");
122 sprintf(fmt
, "VCE%%c exceptions\t\t: %s\n",
123 cpu_has_vce
? "%u" : "not available");
124 seq_printf(m
, fmt
, 'D', vced_count
);
125 seq_printf(m
, fmt
, 'I', vcei_count
);
130 static void *c_start(struct seq_file
*m
, loff_t
*pos
)
132 unsigned long i
= *pos
;
134 return i
< NR_CPUS
? (void *) (i
+ 1) : NULL
;
137 static void *c_next(struct seq_file
*m
, void *v
, loff_t
*pos
)
140 return c_start(m
, pos
);
143 static void c_stop(struct seq_file
*m
, void *v
)
147 struct seq_operations cpuinfo_op
= {
151 .show
= show_cpuinfo
,