diff options
Diffstat (limited to 'arch/powerpc/kernel/dbell.c')
| -rw-r--r-- | arch/powerpc/kernel/dbell.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/dbell.c b/arch/powerpc/kernel/dbell.c index b6fe883b1016..804b1a6196fa 100644 --- a/arch/powerpc/kernel/dbell.c +++ b/arch/powerpc/kernel/dbell.c @@ -1,12 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Author: Kumar Gala <galak@kernel.crashing.org> * * Copyright 2009 Freescale Semiconductor Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #include <linux/stddef.h> @@ -18,6 +14,7 @@ #include <asm/dbell.h> #include <asm/irq_regs.h> #include <asm/kvm_ppc.h> +#include <asm/trace.h> #ifdef CONFIG_SMP @@ -81,6 +78,7 @@ 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 +89,7 @@ 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); } |