diff --git a/arch/powerpc/include/asm/trace.h b/arch/powerpc/include/asm/trace.h index 58ef8c43a89d..08cd60cd70b7 100644 --- a/arch/powerpc/include/asm/trace.h +++ b/arch/powerpc/include/asm/trace.h @@ -54,6 +54,22 @@ DEFINE_EVENT(ppc64_interrupt_class, timer_interrupt_exit, TP_ARGS(regs) ); +#ifdef CONFIG_PPC_DOORBELL +DEFINE_EVENT(ppc64_interrupt_class, doorbell_entry, + + TP_PROTO(struct pt_regs *regs), + + TP_ARGS(regs) +); + +DEFINE_EVENT(ppc64_interrupt_class, doorbell_exit, + + TP_PROTO(struct pt_regs *regs), + + TP_ARGS(regs) +); +#endif + #ifdef CONFIG_PPC_PSERIES extern int hcall_tracepoint_regfunc(void); extern void hcall_tracepoint_unregfunc(void); diff --git a/arch/powerpc/kernel/dbell.c b/arch/powerpc/kernel/dbell.c index b6fe883b1016..5ec3b3835925 100644 --- a/arch/powerpc/kernel/dbell.c +++ b/arch/powerpc/kernel/dbell.c @@ -18,6 +18,7 @@ #include #include #include +#include #ifdef CONFIG_SMP @@ -81,6 +82,7 @@ void doorbell_exception(struct pt_regs *regs) struct pt_regs *old_regs = set_irq_regs(regs); irq_enter(); + trace_doorbell_entry(regs); ppc_msgsync(); @@ -91,6 +93,7 @@ void doorbell_exception(struct pt_regs *regs) smp_ipi_demux_relaxed(); /* already performed the barrier */ + trace_doorbell_exit(regs); irq_exit(); set_irq_regs(old_regs); }