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Diff for /src/sys/arch/x86/x86/tsc.c between version 1.25 and 1.25.2.2

version 1.25, 2009/03/27 19:53:20 version 1.25.2.2, 2010/10/22 07:21:43
Line 69  tsc_tc_init(void)
Line 69  tsc_tc_init(void)
         uint32_t descs[4];          uint32_t descs[4];
         bool safe;          bool safe;
   
         if ((cpu_feature & CPUID_TSC) == 0) {          if (!cpu_hascounter()) {
                 return;                  return;
         }          }
   
Line 128  tsc_tc_init(void)
Line 128  tsc_tc_init(void)
                 case 0x0f:                  case 0x0f:
                         /* Check for "invariant TSC", bit 8 of %edx. */                          /* Check for "invariant TSC", bit 8 of %edx. */
                         x86_cpuid(0x80000007, descs);                          x86_cpuid(0x80000007, descs);
                         safe = (descs[3] & (1 << 8)) != 0;                          safe = (descs[3] & CPUID_APM_TSC) != 0;
                         break;                          break;
                 }                  }
         }          }
Line 255  int
Line 255  int
 cpu_hascounter(void)  cpu_hascounter(void)
 {  {
   
         return cpu_feature & CPUID_TSC;          return cpu_feature[0] & CPUID_TSC;
 }  }
Legend:
Removed from v.1.25  
changed lines
  Added in v.1.25.2.2
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