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/mipsregs.h>
15 #include <asm/processor.h>
16 #include <asm/watch.h>
18 unsigned int vced_count
, vcei_count
;
20 #ifndef CONFIG_CPU_HAS_LLSC
21 unsigned long ll_ops
, sc_ops
;
24 static const char *cpu_name
[] = {
25 [CPU_UNKNOWN
] "unknown",
28 [CPU_R3000A
] "R3000A",
33 [CPU_R3081E
] "R3081E",
34 [CPU_R4000PC
] "R4000PC",
35 [CPU_R4000SC
] "R4000SC",
36 [CPU_R4000MC
] "R4000MC",
38 [CPU_R4400PC
] "R4400PC",
39 [CPU_R4400SC
] "R4400SC",
40 [CPU_R4400MC
] "R4400MC",
43 [CPU_R6000A
] "R6000A",
45 [CPU_R10000
] "R10000",
50 [CPU_R5000A
] "R5000A",
52 [CPU_NEVADA
] "Nevada",
53 [CPU_RM7000
] "RM7000",
58 [CPU_SB1
] "SiByte SB1",
59 [CPU_TX3912
] "TX3912",
60 [CPU_TX3922
] "TX3922",
61 [CPU_TX3927
] "TX3927",
62 [CPU_AU1000
] "Au1000",
63 [CPU_AU1500
] "Au1500",
64 [CPU_4KEC
] "MIPS 4KEc",
65 [CPU_4KSC
] "MIPS 4KSc",
66 [CPU_VR41XX
] "NEC Vr41xx",
68 [CPU_TX49XX
] "TX49xx",
69 [CPU_20KC
] "MIPS 20Kc",
70 [CPU_VR4111
] "NEC VR4111",
71 [CPU_VR4121
] "NEC VR4121",
72 [CPU_VR4122
] "NEC VR4122",
73 [CPU_VR4131
] "NEC VR4131",
74 [CPU_VR4181
] "NEC VR4181",
75 [CPU_VR4181A
] "NEC VR4181A"
79 static int show_cpuinfo(struct seq_file
*m
, void *v
)
81 unsigned int version
= current_cpu_data
.processor_id
;
82 unsigned int fp_vers
= current_cpu_data
.fpu_id
;
83 unsigned long n
= (unsigned long) v
- 1;
87 if (!CPUMASK_TSTB(cpu_online_map
, n
))
92 * For the first processor also print the system type
95 seq_printf(m
, "system type\t\t: %s\n", get_system_type());
97 seq_printf(m
, "processor\t\t: %ld\n", n
);
98 sprintf(fmt
, "cpu model\t\t: %%s V%%d.%%d%s\n",
99 cpu_has_fpu
? " FPU V%d.%d" : "");
100 seq_printf(m
, fmt
, cpu_name
[current_cpu_data
.cputype
<= CPU_LAST
?
101 current_cpu_data
.cputype
: CPU_UNKNOWN
],
102 (version
>> 4) & 0x0f, version
& 0x0f,
103 (fp_vers
>> 4) & 0x0f, fp_vers
& 0x0f);
104 seq_printf(m
, "BogoMIPS\t\t: %lu.%02lu\n",
105 loops_per_jiffy
/ (500000/HZ
),
106 (loops_per_jiffy
/ (5000/HZ
)) % 100);
107 seq_printf(m
, "wait instruction\t: %s\n", cpu_wait
? "yes" : "no");
108 seq_printf(m
, "microsecond timers\t: %s\n",
109 cpu_has_counter
? "yes" : "no");
110 seq_printf(m
, "tlb_entries\t\t: %d\n", current_cpu_data
.tlbsize
);
111 seq_printf(m
, "extra interrupt vector\t: %s\n",
112 cpu_has_divec
? "yes" : "no");
113 seq_printf(m
, "hardware watchpoint\t: %s\n",
114 cpu_has_watch
? "yes" : "no");
116 sprintf(fmt
, "VCE%%c exceptions\t\t: %s\n",
117 cpu_has_vce
? "%d" : "not available");
118 seq_printf(m
, fmt
, 'D', vced_count
);
119 seq_printf(m
, fmt
, 'I', vcei_count
);
121 #ifndef CONFIG_CPU_HAS_LLSC
122 seq_printf(m
, "ll emulations\t\t: %lu\n", ll_ops
);
123 seq_printf(m
, "sc emulations\t\t: %lu\n", sc_ops
);
129 static void *c_start(struct seq_file
*m
, loff_t
*pos
)
131 unsigned long i
= *pos
;
133 return i
< NR_CPUS
? (void *) (i
+ 1) : NULL
;
136 static void *c_next(struct seq_file
*m
, void *v
, loff_t
*pos
)
139 return c_start(m
, pos
);
142 static void c_stop(struct seq_file
*m
, void *v
)
146 struct seq_operations cpuinfo_op
= {
150 .show
= show_cpuinfo
,