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We only support Intel PMCs for now, so don't try and read them 

on non-Intel CPUs.
This commit is contained in:
thorpej 2000-10-24 22:03:36 +00:00
parent ae2220243c
commit d05f0929dc
1 changed files with 14 additions and 11 deletions
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25
sys/arch/i386/i386/pmc.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmc.c,v 1.1 2000/09/13 04:47:01 thorpej Exp $ */
/* $NetBSD: pmc.c,v 1.2 2000/10/24 22:03:36 thorpej Exp $ */
/*-
* Copyright (c) 2000 Zembu Labs, Inc.
@ -66,21 +66,24 @@ pmc_init(void)
if (pmc_initialized)
return;
pmc_type = PMC_TYPE_NONE;
switch (cpu_class) {
case CPUCLASS_586:
pmc_type = PMC_TYPE_I586;
pmc_state[0].pmcs_ctrmsr = MSR_CTR0;
pmc_state[1].pmcs_ctrmsr = MSR_CTR1;
break;
if (strcmp(cpu_vendor, "GenuineIntel") == 0) {
pmc_type = PMC_TYPE_I586;
pmc_state[0].pmcs_ctrmsr = MSR_CTR0;
pmc_state[1].pmcs_ctrmsr = MSR_CTR1;
break;
}
case CPUCLASS_686:
pmc_type = PMC_TYPE_I686;
pmc_state[0].pmcs_ctrmsr = MSR_PERFCTR0;
pmc_state[1].pmcs_ctrmsr = MSR_PERFCTR1;
if (strcmp(cpu_vendor, "GenuineIntel") == 0) {
pmc_type = PMC_TYPE_I686;
pmc_state[0].pmcs_ctrmsr = MSR_PERFCTR0;
pmc_state[1].pmcs_ctrmsr = MSR_PERFCTR1;
}
break;
default:
pmc_type = PMC_TYPE_NONE;
}
if (pmc_type != PMC_TYPE_NONE && (cpu_feature & CPUID_TSC) != 0)