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authorSonic Zhang <sonic.zhang@analog.com>2009-03-05 16:44:53 +0800
committerBryan Wu <cooloney@kernel.org>2009-03-05 16:44:53 +0800
commit0bf3d933085509916335480121761a1b225e6c23 (patch)
tree4a7635701c461ca17559088e33ab75eb4ace9c70 /arch/blackfin/mach-common
parent8bf6774d7fe44ada94bb8df50f089c6e60bdfb26 (diff)
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Blackfin arch: fix bug - kgdb fails to continue after setting breakpoint on bf561-ezkit kernel with smp patch
Free spinlock before call IPI handlers. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Header from folded patch 'blackfin_arch__fix_bug_-_kgdb_fails_to_continue_after_setting_breakpoint_on_bf561-ezkit_kernel_with_smp_patch-1': Blackfin arch: fix bug - kgdb fails to continue after setting breakpoint on bf561-ezkit kernel with smp patch Don't test l1 code in SMP kernel. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/mach-common')
-rw-r--r--arch/blackfin/mach-common/smp.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 77c992847094..93eab6146079 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -158,10 +158,14 @@ static irqreturn_t ipi_handler(int irq, void *dev_instance)
kfree(msg);
break;
case BFIN_IPI_CALL_FUNC:
+ spin_unlock(&msg_queue->lock);
ipi_call_function(cpu, msg);
+ spin_lock(&msg_queue->lock);
break;
case BFIN_IPI_CPU_STOP:
+ spin_unlock(&msg_queue->lock);
ipi_cpu_stop(cpu);
+ spin_lock(&msg_queue->lock);
kfree(msg);
break;
default:
@@ -457,7 +461,7 @@ void smp_icache_flush_range_others(unsigned long start, unsigned long end)
smp_flush_data.start = start;
smp_flush_data.end = end;
- if (smp_call_function(&ipi_flush_icache, &smp_flush_data, 1))
+ if (smp_call_function(&ipi_flush_icache, &smp_flush_data, 0))
printk(KERN_WARNING "SMP: failed to run I-cache flush request on other CPUs\n");
}
EXPORT_SYMBOL_GPL(smp_icache_flush_range_others);
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