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5
6#include <linux/delay.h>
7#include <linux/kernel.h>
8#include <linux/sched.h>
9#include <linux/seq_file.h>
10#include <asm/bootinfo.h>
11#include <asm/cpu.h>
12#include <asm/cpu-features.h>
13#include <asm/idle.h>
14#include <asm/mipsregs.h>
15#include <asm/processor.h>
16#include <asm/prom.h>
17
18unsigned int vced_count, vcei_count;
19
20
21
22
23static RAW_NOTIFIER_HEAD(proc_cpuinfo_chain);
24
25int __ref register_proc_cpuinfo_notifier(struct notifier_block *nb)
26{
27 return raw_notifier_chain_register(&proc_cpuinfo_chain, nb);
28}
29
30int proc_cpuinfo_notifier_call_chain(unsigned long val, void *v)
31{
32 return raw_notifier_call_chain(&proc_cpuinfo_chain, val, v);
33}
34
35static int show_cpuinfo(struct seq_file *m, void *v)
36{
37 struct proc_cpuinfo_notifier_args proc_cpuinfo_notifier_args;
38 unsigned long n = (unsigned long) v - 1;
39 unsigned int version = cpu_data[n].processor_id;
40 unsigned int fp_vers = cpu_data[n].fpu_id;
41 char fmt [64];
42 int i;
43
44#ifdef CONFIG_SMP
45 if (!cpu_online(n))
46 return 0;
47#endif
48
49
50
51
52 if (n == 0) {
53 seq_printf(m, "system type\t\t: %s\n", get_system_type());
54 if (mips_get_machine_name())
55 seq_printf(m, "machine\t\t\t: %s\n",
56 mips_get_machine_name());
57 }
58
59 seq_printf(m, "processor\t\t: %ld\n", n);
60 sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n",
61 cpu_data[n].options & MIPS_CPU_FPU ? " FPU V%d.%d" : "");
62 seq_printf(m, fmt, __cpu_name[n],
63 (version >> 4) & 0x0f, version & 0x0f,
64 (fp_vers >> 4) & 0x0f, fp_vers & 0x0f);
65 seq_printf(m, "BogoMIPS\t\t: %u.%02u\n",
66 cpu_data[n].udelay_val / (500000/HZ),
67 (cpu_data[n].udelay_val / (5000/HZ)) % 100);
68 seq_printf(m, "wait instruction\t: %s\n", cpu_wait ? "yes" : "no");
69 seq_printf(m, "microsecond timers\t: %s\n",
70 cpu_has_counter ? "yes" : "no");
71 seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize);
72 seq_printf(m, "extra interrupt vector\t: %s\n",
73 cpu_has_divec ? "yes" : "no");
74 seq_printf(m, "hardware watchpoint\t: %s",
75 cpu_has_watch ? "yes, " : "no\n");
76 if (cpu_has_watch) {
77 seq_printf(m, "count: %d, address/irw mask: [",
78 cpu_data[n].watch_reg_count);
79 for (i = 0; i < cpu_data[n].watch_reg_count; i++)
80 seq_printf(m, "%s0x%04x", i ? ", " : "" ,
81 cpu_data[n].watch_reg_masks[i]);
82 seq_printf(m, "]\n");
83 }
84
85 seq_printf(m, "isa\t\t\t:");
86 if (cpu_has_mips_r1)
87 seq_printf(m, " mips1");
88 if (cpu_has_mips_2)
89 seq_printf(m, "%s", " mips2");
90 if (cpu_has_mips_3)
91 seq_printf(m, "%s", " mips3");
92 if (cpu_has_mips_4)
93 seq_printf(m, "%s", " mips4");
94 if (cpu_has_mips_5)
95 seq_printf(m, "%s", " mips5");
96 if (cpu_has_mips32r1)
97 seq_printf(m, "%s", " mips32r1");
98 if (cpu_has_mips32r2)
99 seq_printf(m, "%s", " mips32r2");
100 if (cpu_has_mips32r6)
101 seq_printf(m, "%s", " mips32r6");
102 if (cpu_has_mips64r1)
103 seq_printf(m, "%s", " mips64r1");
104 if (cpu_has_mips64r2)
105 seq_printf(m, "%s", " mips64r2");
106 if (cpu_has_mips64r6)
107 seq_printf(m, "%s", " mips64r6");
108 seq_printf(m, "\n");
109
110 seq_printf(m, "ASEs implemented\t:");
111 if (cpu_has_mips16) seq_printf(m, "%s", " mips16");
112 if (cpu_has_mdmx) seq_printf(m, "%s", " mdmx");
113 if (cpu_has_mips3d) seq_printf(m, "%s", " mips3d");
114 if (cpu_has_smartmips) seq_printf(m, "%s", " smartmips");
115 if (cpu_has_dsp) seq_printf(m, "%s", " dsp");
116 if (cpu_has_dsp2) seq_printf(m, "%s", " dsp2");
117 if (cpu_has_mipsmt) seq_printf(m, "%s", " mt");
118 if (cpu_has_mmips) seq_printf(m, "%s", " micromips");
119 if (cpu_has_vz) seq_printf(m, "%s", " vz");
120 if (cpu_has_msa) seq_printf(m, "%s", " msa");
121 if (cpu_has_eva) seq_printf(m, "%s", " eva");
122 if (cpu_has_htw) seq_printf(m, "%s", " htw");
123 if (cpu_has_xpa) seq_printf(m, "%s", " xpa");
124 seq_printf(m, "\n");
125
126 if (cpu_has_mmips) {
127 seq_printf(m, "micromips kernel\t: %s\n",
128 (read_c0_config3() & MIPS_CONF3_ISA_OE) ? "yes" : "no");
129 }
130 seq_printf(m, "shadow register sets\t: %d\n",
131 cpu_data[n].srsets);
132 seq_printf(m, "kscratch registers\t: %d\n",
133 hweight8(cpu_data[n].kscratch_mask));
134 seq_printf(m, "package\t\t\t: %d\n", cpu_data[n].package);
135 seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core);
136
137 sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
138 cpu_has_vce ? "%u" : "not available");
139 seq_printf(m, fmt, 'D', vced_count);
140 seq_printf(m, fmt, 'I', vcei_count);
141
142 proc_cpuinfo_notifier_args.m = m;
143 proc_cpuinfo_notifier_args.n = n;
144
145 raw_notifier_call_chain(&proc_cpuinfo_chain, 0,
146 &proc_cpuinfo_notifier_args);
147
148 seq_printf(m, "\n");
149
150 return 0;
151}
152
153static void *c_start(struct seq_file *m, loff_t *pos)
154{
155 unsigned long i = *pos;
156
157 return i < NR_CPUS ? (void *) (i + 1) : NULL;
158}
159
160static void *c_next(struct seq_file *m, void *v, loff_t *pos)
161{
162 ++*pos;
163 return c_start(m, pos);
164}
165
166static void c_stop(struct seq_file *m, void *v)
167{
168}
169
170const struct seq_operations cpuinfo_op = {
171 .start = c_start,
172 .next = c_next,
173 .stop = c_stop,
174 .show = show_cpuinfo,
175};
176
