Gitiles
Code Review Sign In
review.evervolv.com / android_kernel_lge_hammerhead / 1f3be588b51e809476cdecd4eaf6fd04670d9c36 / . / arch / mips / kernel / proc.c
blob: 0f159f30e89477ad16335483d662fa77ec4ad2ec [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
2 * linux/arch/mips/kernel/proc.c
3 *
4 * Copyright (C) 1995, 1996, 2001 Ralf Baechle
5 * Copyright (C) 2001 MIPS Technologies, Inc.
6 */
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>
13#include <asm/cpu.h>
14#include <asm/cpu-features.h>
15#include <asm/mipsregs.h>
16#include <asm/processor.h>
17#include <asm/watch.h>
18
19unsigned int vced_count, vcei_count;
20
21static const char *cpu_name[] = {
22 [CPU_UNKNOWN] "unknown",
23 [CPU_R2000] "R2000",
24 [CPU_R3000] "R3000",
25 [CPU_R3000A] "R3000A",
26 [CPU_R3041] "R3041",
27 [CPU_R3051] "R3051",
28 [CPU_R3052] "R3052",
29 [CPU_R3081] "R3081",
30 [CPU_R3081E] "R3081E",
31 [CPU_R4000PC] "R4000PC",
32 [CPU_R4000SC] "R4000SC",
33 [CPU_R4000MC] "R4000MC",
34 [CPU_R4200] "R4200",
35 [CPU_R4400PC] "R4400PC",
36 [CPU_R4400SC] "R4400SC",
37 [CPU_R4400MC] "R4400MC",
38 [CPU_R4600] "R4600",
39 [CPU_R6000] "R6000",
40 [CPU_R6000A] "R6000A",
41 [CPU_R8000] "R8000",
42 [CPU_R10000] "R10000",
43 [CPU_R12000] "R12000",
44 [CPU_R4300] "R4300",
45 [CPU_R4650] "R4650",
46 [CPU_R4700] "R4700",
47 [CPU_R5000] "R5000",
48 [CPU_R5000A] "R5000A",
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",
55 [CPU_5KC] "MIPS 5Kc",
56 [CPU_R4310] "R4310",
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_4KEC] "MIPS 4KEc",
64 [CPU_4KSC] "MIPS 4KSc",
65 [CPU_VR41XX] "NEC Vr41xx",
66 [CPU_R5500] "R5500",
67 [CPU_TX49XX] "TX49xx",
68 [CPU_20KC] "MIPS 20Kc",
69 [CPU_24K] "MIPS 24K",
70 [CPU_25KF] "MIPS 25Kf",
71 [CPU_VR4111] "NEC VR4111",
72 [CPU_VR4121] "NEC VR4121",
73 [CPU_VR4122] "NEC VR4122",
74 [CPU_VR4131] "NEC VR4131",
75 [CPU_VR4133] "NEC VR4133",
76 [CPU_VR4181] "NEC VR4181",
77 [CPU_VR4181A] "NEC VR4181A",
78 [CPU_SR71000] "Sandcraft SR71000"
79};
80
81
82static int show_cpuinfo(struct seq_file *m, void *v)
83{
84 unsigned int version = current_cpu_data.processor_id;
85 unsigned int fp_vers = current_cpu_data.fpu_id;
86 unsigned long n = (unsigned long) v - 1;
87 char fmt [64];
88
89#ifdef CONFIG_SMP
90 if (!cpu_isset(n, cpu_online_map))
91 return 0;
92#endif
93
94 /*
95 * For the first processor also print the system type
96 */
97 if (n == 0)
98 seq_printf(m, "system type\t\t: %s\n", get_system_type());
99
100 seq_printf(m, "processor\t\t: %ld\n", n);
101 sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n",
102 cpu_has_fpu ? " FPU V%d.%d" : "");
103 seq_printf(m, fmt, cpu_name[current_cpu_data.cputype <= CPU_LAST ?
104 current_cpu_data.cputype : CPU_UNKNOWN],
105 (version >> 4) & 0x0f, version & 0x0f,
106 (fp_vers >> 4) & 0x0f, fp_vers & 0x0f);
107 seq_printf(m, "BogoMIPS\t\t: %lu.%02lu\n",
108 loops_per_jiffy / (500000/HZ),
109 (loops_per_jiffy / (5000/HZ)) % 100);
110 seq_printf(m, "wait instruction\t: %s\n", cpu_wait ? "yes" : "no");
111 seq_printf(m, "microsecond timers\t: %s\n",
112 cpu_has_counter ? "yes" : "no");
113 seq_printf(m, "tlb_entries\t\t: %d\n", current_cpu_data.tlbsize);
114 seq_printf(m, "extra interrupt vector\t: %s\n",
115 cpu_has_divec ? "yes" : "no");
116 seq_printf(m, "hardware watchpoint\t: %s\n",
117 cpu_has_watch ? "yes" : "no");
118
119 sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
120 cpu_has_vce ? "%u" : "not available");
121 seq_printf(m, fmt, 'D', vced_count);
122 seq_printf(m, fmt, 'I', vcei_count);
123
124 return 0;
125}
126
127static void *c_start(struct seq_file *m, loff_t *pos)
128{
129 unsigned long i = *pos;
130
131 return i < NR_CPUS ? (void *) (i + 1) : NULL;
132}
133
134static void *c_next(struct seq_file *m, void *v, loff_t *pos)
135{
136 ++*pos;
137 return c_start(m, pos);
138}
139
140static void c_stop(struct seq_file *m, void *v)
141{
142}
143
144struct seq_operations cpuinfo_op = {
145 .start = c_start,
146 .next = c_next,
147 .stop = c_stop,
148 .show = show_cpuinfo,
149};