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authorSteven Miao <realmz6@gmail.com>2011-08-02 17:50:41 +0800
committerMike Frysinger <vapier@gentoo.org>2011-10-25 19:51:29 -0400
commit0b2b06efd81ceb1630babcf2990f9577a17c132f (patch)
treeaba576a0024ce65a0b60b541aeee55d380544db9 /arch/blackfin
parent74b654176aa15e06b81f26416654b9cd91bd9601 (diff)
downloadblackbird-op-linux-0b2b06efd81ceb1630babcf2990f9577a17c132f.tar.gz
blackbird-op-linux-0b2b06efd81ceb1630babcf2990f9577a17c132f.zip
Blackfin: SMP: fix scheduling deadlock
Make sure our smp_send_reschedule() implementation matches the scheduler_ipi() callback so that it can kick the idle cpu. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/mach-common/smp.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 107622aacf6b..0784a52389c8 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -295,10 +295,15 @@ EXPORT_SYMBOL_GPL(smp_call_function_single);
void smp_send_reschedule(int cpu)
{
+ cpumask_t callmap;
/* simply trigger an ipi */
if (cpu_is_offline(cpu))
return;
- platform_send_ipi_cpu(cpu, IRQ_SUPPLE_0);
+
+ cpumask_clear(&callmap);
+ cpumask_set_cpu(cpu, &callmap);
+
+ smp_send_message(callmap, BFIN_IPI_RESCHEDULE, NULL, NULL, 0);
return;
}
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