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/arch/mips/kernel/proc.c

https://bitbucket.org/evzijst/gittest
C | 149 lines | 126 code | 14 blank | 9 comment | 3 complexity | b7b6084175c44ddb4cfe24d2db561de4 MD5 | raw file
  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};