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1da177e4 LT |
1 | /* |
2 | * linux/arch/mips/kernel/proc.c | |
3 | * | |
4 | * Copyright (C) 1995, 1996, 2001 Ralf Baechle | |
4194318c RB |
5 | * Copyright (C) 2001, 2004 MIPS Technologies, Inc. |
6 | * Copyright (C) 2004 Maciej W. Rozycki | |
1da177e4 | 7 | */ |
1da177e4 LT |
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> | |
13 | #include <asm/cpu.h> | |
14 | #include <asm/cpu-features.h> | |
15 | #include <asm/mipsregs.h> | |
16 | #include <asm/processor.h> | |
1da177e4 LT |
17 | |
18 | unsigned int vced_count, vcei_count; | |
19 | ||
20 | static const char *cpu_name[] = { | |
0f04afb5 RB |
21 | [CPU_UNKNOWN] = "unknown", |
22 | [CPU_R2000] = "R2000", | |
23 | [CPU_R3000] = "R3000", | |
24 | [CPU_R3000A] = "R3000A", | |
25 | [CPU_R3041] = "R3041", | |
26 | [CPU_R3051] = "R3051", | |
27 | [CPU_R3052] = "R3052", | |
28 | [CPU_R3081] = "R3081", | |
29 | [CPU_R3081E] = "R3081E", | |
30 | [CPU_R4000PC] = "R4000PC", | |
31 | [CPU_R4000SC] = "R4000SC", | |
32 | [CPU_R4000MC] = "R4000MC", | |
e0daad44 | 33 | [CPU_R4200] = "R4200", |
0f04afb5 RB |
34 | [CPU_R4400PC] = "R4400PC", |
35 | [CPU_R4400SC] = "R4400SC", | |
36 | [CPU_R4400MC] = "R4400MC", | |
37 | [CPU_R4600] = "R4600", | |
38 | [CPU_R6000] = "R6000", | |
e0daad44 | 39 | [CPU_R6000A] = "R6000A", |
0f04afb5 RB |
40 | [CPU_R8000] = "R8000", |
41 | [CPU_R10000] = "R10000", | |
42 | [CPU_R12000] = "R12000", | |
44d921b2 | 43 | [CPU_R14000] = "R14000", |
0f04afb5 RB |
44 | [CPU_R4300] = "R4300", |
45 | [CPU_R4650] = "R4650", | |
46 | [CPU_R4700] = "R4700", | |
47 | [CPU_R5000] = "R5000", | |
e0daad44 | 48 | [CPU_R5000A] = "R5000A", |
0f04afb5 RB |
49 | [CPU_R4640] = "R4640", |
50 | [CPU_NEVADA] = "Nevada", | |
51 | [CPU_RM7000] = "RM7000", | |
52 | [CPU_RM9000] = "RM9000", | |
53 | [CPU_R5432] = "R5432", | |
54 | [CPU_4KC] = "MIPS 4Kc", | |
e0daad44 | 55 | [CPU_5KC] = "MIPS 5Kc", |
0f04afb5 RB |
56 | [CPU_R4310] = "R4310", |
57 | [CPU_SB1] = "SiByte SB1", | |
93ce2f52 | 58 | [CPU_SB1A] = "SiByte SB1A", |
0f04afb5 RB |
59 | [CPU_TX3912] = "TX3912", |
60 | [CPU_TX3922] = "TX3922", | |
61 | [CPU_TX3927] = "TX3927", | |
62 | [CPU_AU1000] = "Au1000", | |
63 | [CPU_AU1500] = "Au1500", | |
64 | [CPU_AU1100] = "Au1100", | |
65 | [CPU_AU1550] = "Au1550", | |
66 | [CPU_AU1200] = "Au1200", | |
67 | [CPU_4KEC] = "MIPS 4KEc", | |
68 | [CPU_4KSC] = "MIPS 4KSc", | |
69 | [CPU_VR41XX] = "NEC Vr41xx", | |
70 | [CPU_R5500] = "R5500", | |
71 | [CPU_TX49XX] = "TX49xx", | |
72 | [CPU_20KC] = "MIPS 20Kc", | |
73 | [CPU_24K] = "MIPS 24K", | |
74 | [CPU_25KF] = "MIPS 25Kf", | |
bbc7f22f | 75 | [CPU_34K] = "MIPS 34K", |
c620953c | 76 | [CPU_74K] = "MIPS 74K", |
0f04afb5 RB |
77 | [CPU_VR4111] = "NEC VR4111", |
78 | [CPU_VR4121] = "NEC VR4121", | |
79 | [CPU_VR4122] = "NEC VR4122", | |
80 | [CPU_VR4131] = "NEC VR4131", | |
81 | [CPU_VR4133] = "NEC VR4133", | |
82 | [CPU_VR4181] = "NEC VR4181", | |
83 | [CPU_VR4181A] = "NEC VR4181A", | |
bdf21b18 PP |
84 | [CPU_SR71000] = "Sandcraft SR71000", |
85 | [CPU_PR4450] = "Philips PR4450", | |
2a21c730 | 86 | [CPU_LOONGSON2] = "ICT Loongson-2", |
1da177e4 LT |
87 | }; |
88 | ||
89 | ||
90 | static int show_cpuinfo(struct seq_file *m, void *v) | |
91 | { | |
1da177e4 | 92 | unsigned long n = (unsigned long) v - 1; |
31aa3665 KJK |
93 | unsigned int version = cpu_data[n].processor_id; |
94 | unsigned int fp_vers = cpu_data[n].fpu_id; | |
1da177e4 LT |
95 | char fmt [64]; |
96 | ||
97 | #ifdef CONFIG_SMP | |
98 | if (!cpu_isset(n, cpu_online_map)) | |
99 | return 0; | |
100 | #endif | |
101 | ||
102 | /* | |
103 | * For the first processor also print the system type | |
104 | */ | |
105 | if (n == 0) | |
106 | seq_printf(m, "system type\t\t: %s\n", get_system_type()); | |
107 | ||
108 | seq_printf(m, "processor\t\t: %ld\n", n); | |
109 | sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n", | |
e04582b7 | 110 | cpu_data[n].options & MIPS_CPU_FPU ? " FPU V%d.%d" : ""); |
31aa3665 KJK |
111 | seq_printf(m, fmt, cpu_name[cpu_data[n].cputype <= CPU_LAST ? |
112 | cpu_data[n].cputype : CPU_UNKNOWN], | |
1da177e4 LT |
113 | (version >> 4) & 0x0f, version & 0x0f, |
114 | (fp_vers >> 4) & 0x0f, fp_vers & 0x0f); | |
115 | seq_printf(m, "BogoMIPS\t\t: %lu.%02lu\n", | |
0ac35480 RB |
116 | cpu_data[n].udelay_val / (500000/HZ), |
117 | (cpu_data[n].udelay_val / (5000/HZ)) % 100); | |
1da177e4 LT |
118 | seq_printf(m, "wait instruction\t: %s\n", cpu_wait ? "yes" : "no"); |
119 | seq_printf(m, "microsecond timers\t: %s\n", | |
120 | cpu_has_counter ? "yes" : "no"); | |
31aa3665 | 121 | seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize); |
1da177e4 LT |
122 | seq_printf(m, "extra interrupt vector\t: %s\n", |
123 | cpu_has_divec ? "yes" : "no"); | |
124 | seq_printf(m, "hardware watchpoint\t: %s\n", | |
125 | cpu_has_watch ? "yes" : "no"); | |
e027802e | 126 | seq_printf(m, "ASEs implemented\t:%s%s%s%s%s%s\n", |
4194318c RB |
127 | cpu_has_mips16 ? " mips16" : "", |
128 | cpu_has_mdmx ? " mdmx" : "", | |
129 | cpu_has_mips3d ? " mips3d" : "", | |
e027802e RB |
130 | cpu_has_smartmips ? " smartmips" : "", |
131 | cpu_has_dsp ? " dsp" : "", | |
132 | cpu_has_mipsmt ? " mt" : "" | |
133 | ); | |
1da177e4 LT |
134 | |
135 | sprintf(fmt, "VCE%%c exceptions\t\t: %s\n", | |
136 | cpu_has_vce ? "%u" : "not available"); | |
137 | seq_printf(m, fmt, 'D', vced_count); | |
138 | seq_printf(m, fmt, 'I', vcei_count); | |
17256052 | 139 | seq_printf(m, "\n"); |
1da177e4 LT |
140 | |
141 | return 0; | |
142 | } | |
143 | ||
144 | static void *c_start(struct seq_file *m, loff_t *pos) | |
145 | { | |
146 | unsigned long i = *pos; | |
147 | ||
148 | return i < NR_CPUS ? (void *) (i + 1) : NULL; | |
149 | } | |
150 | ||
151 | static void *c_next(struct seq_file *m, void *v, loff_t *pos) | |
152 | { | |
153 | ++*pos; | |
154 | return c_start(m, pos); | |
155 | } | |
156 | ||
157 | static void c_stop(struct seq_file *m, void *v) | |
158 | { | |
159 | } | |
160 | ||
161 | struct seq_operations cpuinfo_op = { | |
162 | .start = c_start, | |
163 | .next = c_next, | |
164 | .stop = c_stop, | |
165 | .show = show_cpuinfo, | |
166 | }; |