[MIPS] Add support for BCM47XX CPUs.
[linux-2.6.git] / arch / mips / kernel / proc.c
1 /*
2  *  linux/arch/mips/kernel/proc.c
3  *
4  *  Copyright (C) 1995, 1996, 2001  Ralf Baechle
5  *  Copyright (C) 2001, 2004  MIPS Technologies, Inc.
6  *  Copyright (C) 2004  Maciej W. Rozycki
7  */
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
18 unsigned int vced_count, vcei_count;
19
20 static const char *cpu_name[] = {
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",
33         [CPU_R4200]     = "R4200",
34         [CPU_R4400PC]   = "R4400PC",
35         [CPU_R4400SC]   = "R4400SC",
36         [CPU_R4400MC]   = "R4400MC",
37         [CPU_R4600]     = "R4600",
38         [CPU_R6000]     = "R6000",
39         [CPU_R6000A]    = "R6000A",
40         [CPU_R8000]     = "R8000",
41         [CPU_R10000]    = "R10000",
42         [CPU_R12000]    = "R12000",
43         [CPU_R14000]    = "R14000",
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_SB1A]      = "SiByte SB1A",
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",
75         [CPU_34K]       = "MIPS 34K",
76         [CPU_74K]       = "MIPS 74K",
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",
84         [CPU_SR71000]   = "Sandcraft SR71000",
85         [CPU_BCM3302]   = "Broadcom BCM3302",
86         [CPU_BCM4710]   = "Broadcom BCM4710",
87         [CPU_PR4450]    = "Philips PR4450",
88         [CPU_LOONGSON2] = "ICT Loongson-2",
89 };
90
91
92 static int show_cpuinfo(struct seq_file *m, void *v)
93 {
94         unsigned long n = (unsigned long) v - 1;
95         unsigned int version = cpu_data[n].processor_id;
96         unsigned int fp_vers = cpu_data[n].fpu_id;
97         char fmt [64];
98
99 #ifdef CONFIG_SMP
100         if (!cpu_isset(n, cpu_online_map))
101                 return 0;
102 #endif
103
104         /*
105          * For the first processor also print the system type
106          */
107         if (n == 0)
108                 seq_printf(m, "system type\t\t: %s\n", get_system_type());
109
110         seq_printf(m, "processor\t\t: %ld\n", n);
111         sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n",
112                 cpu_data[n].options & MIPS_CPU_FPU ? "  FPU V%d.%d" : "");
113         seq_printf(m, fmt, cpu_name[cpu_data[n].cputype <= CPU_LAST ?
114                                     cpu_data[n].cputype : CPU_UNKNOWN],
115                                    (version >> 4) & 0x0f, version & 0x0f,
116                                    (fp_vers >> 4) & 0x0f, fp_vers & 0x0f);
117         seq_printf(m, "BogoMIPS\t\t: %lu.%02lu\n",
118                       cpu_data[n].udelay_val / (500000/HZ),
119                       (cpu_data[n].udelay_val / (5000/HZ)) % 100);
120         seq_printf(m, "wait instruction\t: %s\n", cpu_wait ? "yes" : "no");
121         seq_printf(m, "microsecond timers\t: %s\n",
122                       cpu_has_counter ? "yes" : "no");
123         seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize);
124         seq_printf(m, "extra interrupt vector\t: %s\n",
125                       cpu_has_divec ? "yes" : "no");
126         seq_printf(m, "hardware watchpoint\t: %s\n",
127                       cpu_has_watch ? "yes" : "no");
128         seq_printf(m, "ASEs implemented\t:%s%s%s%s%s%s\n",
129                       cpu_has_mips16 ? " mips16" : "",
130                       cpu_has_mdmx ? " mdmx" : "",
131                       cpu_has_mips3d ? " mips3d" : "",
132                       cpu_has_smartmips ? " smartmips" : "",
133                       cpu_has_dsp ? " dsp" : "",
134                       cpu_has_mipsmt ? " mt" : ""
135                 );
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         seq_printf(m, "\n");
142
143         return 0;
144 }
145
146 static void *c_start(struct seq_file *m, loff_t *pos)
147 {
148         unsigned long i = *pos;
149
150         return i < NR_CPUS ? (void *) (i + 1) : NULL;
151 }
152
153 static void *c_next(struct seq_file *m, void *v, loff_t *pos)
154 {
155         ++*pos;
156         return c_start(m, pos);
157 }
158
159 static void c_stop(struct seq_file *m, void *v)
160 {
161 }
162
163 struct seq_operations cpuinfo_op = {
164         .start  = c_start,
165         .next   = c_next,
166         .stop   = c_stop,
167         .show   = show_cpuinfo,
168 };