diff options
Diffstat (limited to 'arch/powerpc/kernel/dbell.c')
| -rw-r--r-- | arch/powerpc/kernel/dbell.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/arch/powerpc/kernel/dbell.c b/arch/powerpc/kernel/dbell.c index b6fe883b1016..f17ff1200eaa 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 @@ -36,7 +33,7 @@ void doorbell_global_ipi(int cpu) { u32 tag = get_hard_smp_processor_id(cpu); - kvmppc_set_host_ipi(cpu, 1); + kvmppc_set_host_ipi(cpu); /* Order previous accesses vs. msgsnd, which is treated as a store */ ppc_msgsnd_sync(); ppc_msgsnd(PPC_DBELL_MSGTYPE, 0, tag); @@ -51,7 +48,7 @@ void doorbell_core_ipi(int cpu) { u32 tag = cpu_thread_in_core(cpu); - kvmppc_set_host_ipi(cpu, 1); + kvmppc_set_host_ipi(cpu); /* Order previous accesses vs. msgsnd, which is treated as a store */ ppc_msgsnd_sync(); ppc_msgsnd(PPC_DBELL_MSGTYPE, 0, tag); @@ -81,16 +78,18 @@ void doorbell_exception(struct pt_regs *regs) struct pt_regs *old_regs = set_irq_regs(regs); irq_enter(); + trace_doorbell_entry(regs); ppc_msgsync(); may_hard_irq_enable(); - kvmppc_set_host_ipi(smp_processor_id(), 0); + kvmppc_clear_host_ipi(smp_processor_id()); __this_cpu_inc(irq_stat.doorbell_irqs); smp_ipi_demux_relaxed(); /* already performed the barrier */ + trace_doorbell_exit(regs); irq_exit(); set_irq_regs(old_regs); } |
