Commit 8183e2b3 authored by David S. Miller's avatar David S. Miller

sparc64: Fix NMI programming when perf events are active.

If perf events are active, we should not reset the %pcr to
PCR_PIC_PRIV.  That perf events code does the management.
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5958eed7
...@@ -96,7 +96,6 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) ...@@ -96,7 +96,6 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
int cpu = smp_processor_id(); int cpu = smp_processor_id();
clear_softint(1 << irq); clear_softint(1 << irq);
pcr_ops->write(PCR_PIC_PRIV);
local_cpu_data().__nmi_count++; local_cpu_data().__nmi_count++;
...@@ -105,6 +104,8 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) ...@@ -105,6 +104,8 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
if (notify_die(DIE_NMI, "nmi", regs, 0, if (notify_die(DIE_NMI, "nmi", regs, 0,
pt_regs_trap_type(regs), SIGINT) == NOTIFY_STOP) pt_regs_trap_type(regs), SIGINT) == NOTIFY_STOP)
touched = 1; touched = 1;
else
pcr_ops->write(PCR_PIC_PRIV);
sum = kstat_irqs_cpu(0, cpu); sum = kstat_irqs_cpu(0, cpu);
if (__get_cpu_var(nmi_touch)) { if (__get_cpu_var(nmi_touch)) {
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment