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proc.c
资源名称：linux-2.4.20.tar.gz　[点击查看]
上传用户：jlfgdled
上传日期：2013-04-10
资源大小：33168k
文件大小：4k
源码类别：

Linux/Unix编程

开发平台：

Unix_Linux

proc.c：源码内容
  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/mipsregs.h>
  15. #include <asm/processor.h>
  16. #include <asm/watch.h>
  18. unsigned int vced_count, vcei_count;
  20. #ifndef CONFIG_CPU_HAS_LLSC
  21. unsigned long ll_ops, sc_ops;
  22. #endif
  24. static const char *cpu_name[] = {
  25. [CPU_UNKNOWN] "unknown",
  26. [CPU_R2000] "R2000",
  27. [CPU_R3000] "R3000",
  28. [CPU_R3000A] "R3000A",
  29. [CPU_R3041] "R3041",
  30. [CPU_R3051] "R3051",
  31. [CPU_R3052] "R3052",
  32. [CPU_R3081] "R3081",
  33. [CPU_R3081E] "R3081E",
  34. [CPU_R4000PC] "R4000PC",
  35. [CPU_R4000SC] "R4000SC",
  36. [CPU_R4000MC] "R4000MC",
  37.         [CPU_R4200] "R4200",
  38. [CPU_R4400PC] "R4400PC",
  39. [CPU_R4400SC] "R4400SC",
  40. [CPU_R4400MC] "R4400MC",
  41. [CPU_R4600] "R4600",
  42. [CPU_R6000] "R6000",
  43.         [CPU_R6000A] "R6000A",
  44. [CPU_R8000] "R8000",
  45. [CPU_R10000] "R10000",
  46. [CPU_R4300] "R4300",
  47. [CPU_R4650] "R4650",
  48. [CPU_R4700] "R4700",
  49. [CPU_R5000] "R5000",
  50.         [CPU_R5000A] "R5000A",
  51. [CPU_R4640] "R4640",
  52. [CPU_NEVADA] "Nevada",
  53. [CPU_RM7000] "RM7000",
  54. [CPU_R5432] "R5432",
  55. [CPU_4KC] "MIPS 4Kc",
  56.         [CPU_5KC] "MIPS 5Kc",
  57. [CPU_R4310] "R4310",
  58. [CPU_SB1] "SiByte SB1",
  59. [CPU_TX3912] "TX3912",
  60. [CPU_TX3922] "TX3922",
  61. [CPU_TX3927] "TX3927",
  62. [CPU_AU1000] "Au1000",
  63. [CPU_AU1500] "Au1500",
  64. [CPU_4KEC] "MIPS 4KEc",
  65. [CPU_4KSC] "MIPS 4KSc",
  66. [CPU_VR41XX] "NEC Vr41xx",
  67. [CPU_R5500] "R5500",
  68. [CPU_TX49XX] "TX49xx",
  69. [CPU_TX39XX] "TX39xx",
  70. [CPU_20KC] "MIPS 20Kc",
  71. [CPU_VR4111] "NEC VR4111",
  72. [CPU_VR4121] "NEC VR4121",
  73. [CPU_VR4122] "NEC VR4122",
  74. [CPU_VR4131] "NEC VR4131",
  75. [CPU_VR4181] "NEC VR4181",
  76. [CPU_VR4181A] "NEC VR4181A"
  77. };
  80. static int show_cpuinfo(struct seq_file *m, void *v)
  81. {
  82. unsigned int version = mips_cpu.processor_id;
  83. unsigned int fp_vers = mips_cpu.fpu_id;
  84. unsigned long n = (unsigned long) v - 1;
  85. char fmt [64];
  87. #ifdef CONFIG_SMP
  88. if (!CPUMASK_TSTB(cpu_online_map, n))
  89. return 0;
  90. #endif
  92. /*
  93.  * For the first processor also print the system type
  94.  */
  95. if (n == 0)
  96. seq_printf(m, "system typett: %sn", get_system_type());
  98. seq_printf(m, "processortt: %ldn", n);
  99. sprintf(fmt, "cpu modeltt: %%s V%%d.%%d%sn",
  100.         (mips_cpu.options & MIPS_CPU_FPU) ? "  FPU V%d.%d" : "");
  101. seq_printf(m, fmt, cpu_name[mips_cpu.cputype <= CPU_LAST ?
  102.                             mips_cpu.cputype : CPU_UNKNOWN],
  103.                            (version >> 4) & 0x0f, version & 0x0f,
  104.                            (fp_vers >> 4) & 0x0f, fp_vers & 0x0f);
  105. seq_printf(m, "BogoMIPStt: %lu.%02lun",
  106.               loops_per_jiffy / (500000/HZ),
  107.               (loops_per_jiffy / (5000/HZ)) % 100);
  108. seq_printf(m, "wait instructiont: %sn", cpu_wait ? "yes" : "no");
  109. seq_printf(m, "microsecond timerst: %sn",
  110.               (mips_cpu.options & MIPS_CPU_COUNTER) ? "yes" : "no");
  111. seq_printf(m, "tlb_entriestt: %dn", mips_cpu.tlbsize);
  112. seq_printf(m, "extra interrupt vectort: %sn",
  113.               (mips_cpu.options & MIPS_CPU_DIVEC) ? "yes" : "no");
  114. seq_printf(m, "hardware watchpointt: %sn",
  115.               watch_available ? "yes" : "no");
  117. sprintf(fmt, "VCE%%c exceptionstt: %sn",
  118.         (mips_cpu.options & MIPS_CPU_VCE) ? "%d" : "not available");
  119. seq_printf(m, fmt, 'D', vced_count);
  120. seq_printf(m, fmt, 'I', vcei_count);
  122. #ifndef CONFIG_CPU_HAS_LLSC
  123. seq_printf(m, "ll emulationstt: %lun", ll_ops);
  124. seq_printf(m, "sc emulationstt: %lun", sc_ops);
  125. #endif
  127. return 0;
  128. }
  130. static void *c_start(struct seq_file *m, loff_t *pos)
  131. {
  132. unsigned long i = *pos;
  134. return i < NR_CPUS ? (void *) (i + 1) : NULL;
  135. }
  137. static void *c_next(struct seq_file *m, void *v, loff_t *pos)
  138. {
  139. ++*pos;
  140. return c_start(m, pos);
  141. }
  143. static void c_stop(struct seq_file *m, void *v)
  144. {
  145. }
  147. struct seq_operations cpuinfo_op = {
  148. start: c_start,
  149. next: c_next,
  150. stop: c_stop,
  151. show: show_cpuinfo,
  152. };