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| author | Paul Mundt <lethal@linux-sh.org> | 2008-08-06 18:02:48 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-09-08 10:35:02 +0900 |
| commit | 173a44dd1f406e9aa6fcf46c83b7c972d10ec930 (patch) | |
| tree | 61784c58c8e566f3717914761aeff5d8cc7c75be /arch | |
| parent | 04ec080dcaad7d3c6d0b40b599c8e63da618f784 (diff) | |
| download | op-kernel-dev-173a44dd1f406e9aa6fcf46c83b7c972d10ec930.zip op-kernel-dev-173a44dd1f406e9aa6fcf46c83b7c972d10ec930.tar.gz | |
sh: smp: Provide a generic IPI handler.
This provides a generic smp_message_recv() routine (based on the PPC
one), that IPI IRQs can wrap in to.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sh/include/asm/smp.h | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/smp.c | 20 |
2 files changed, 20 insertions, 1 deletions
diff --git a/arch/sh/include/asm/smp.h b/arch/sh/include/asm/smp.h index e2b79e6..1292c6d 100644 --- a/arch/sh/include/asm/smp.h +++ b/arch/sh/include/asm/smp.h @@ -26,6 +26,7 @@ extern int __cpu_logical_map[NR_CPUS]; #define SMP_MSG_FUNCTION_SINGLE 2 #define SMP_MSG_NR 3 +void smp_message_recv(unsigned int msg); void plat_smp_setup(void); void plat_prepare_cpus(unsigned int max_cpus); int plat_smp_processor_id(void); diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c index 60c5084..ebfdd36 100644 --- a/arch/sh/kernel/smp.c +++ b/arch/sh/kernel/smp.c @@ -3,7 +3,7 @@ * * SMP support for the SuperH processors. * - * Copyright (C) 2002 - 2007 Paul Mundt + * Copyright (C) 2002 - 2008 Paul Mundt * Copyright (C) 2006 - 2007 Akio Idehara * * This file is subject to the terms and conditions of the GNU General Public @@ -184,6 +184,24 @@ void arch_send_call_function_single_ipi(int cpu) plat_send_ipi(cpu, SMP_MSG_FUNCTION_SINGLE); } +void smp_message_recv(unsigned int msg) +{ + switch (msg) { + case SMP_MSG_FUNCTION: + generic_smp_call_function_interrupt(); + break; + case SMP_MSG_RESCHEDULE: + break; + case SMP_MSG_FUNCTION_SINGLE: + generic_smp_call_function_single_interrupt(); + break; + default: + printk(KERN_WARNING "SMP %d: %s(): unknown IPI %d\n", + smp_processor_id(), __func__, msg); + break; + } +} + /* Not really SMP stuff ... */ int setup_profiling_timer(unsigned int multiplier) { |
