[PATCH] x86-64: x86_64 make NMI use PERFCTR1 for architectural perfmon (take 2)

[linux-2.6-omap-h63xx.git] / arch / x86_64 / kernel / nmi.c

diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c
index dfab9f1673662ae9dc9963cf1de216402164877d..010d3d9bd56a9c0c895fbedabee62632aa3b59cf 100644 (file)
--- a/arch/x86_64/kernel/nmi.c
+++ b/arch/x86_64/kernel/nmi.c
@@ -348,7 +348,7 @@ int __init check_nmi_watchdog (void)
                struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
 
                nmi_hz = 1;
-               if (wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0)
+               if (wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR1)
                        nmi_hz = adjust_for_32bit_ctr(nmi_hz);
        }
 
@@ -713,8 +713,8 @@ static int setup_intel_arch_watchdog(void)
            (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT))
                goto fail;
 
-       perfctr_msr = MSR_ARCH_PERFMON_PERFCTR0;
-       evntsel_msr = MSR_ARCH_PERFMON_EVENTSEL0;
+       perfctr_msr = MSR_ARCH_PERFMON_PERFCTR1;
+       evntsel_msr = MSR_ARCH_PERFMON_EVENTSEL1;
 
        if (!__reserve_perfctr_nmi(-1, perfctr_msr))
                goto fail;
@@ -958,7 +958,7 @@ int __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason)
                                /* start the cycle over again */
                                wrmsrl(wd->perfctr_msr,
                                       -((u64)cpu_khz * 1000 / nmi_hz));
-                       } else if (wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) {
+                       } else if (wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR1) {
                                /*
                                 * ArchPerfom/Core Duo needs to re-unmask
                                 * the apic vector