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authorKumar Gala <galak@kernel.crashing.org>2008-10-28 21:01:39 +0300
committerPaul Mackerras <paulus@samba.org>2008-10-31 08:13:50 +0300
commit3c10c9c45e290022ca7d2aa1ad33a0b6ed767520 (patch)
tree002769098cd2b53aad995acac3c42f0331302588 /arch/powerpc/platforms/86xx/pic.c
parentf9226d572d2f8b5f564596db8c6a13e458c46191 (diff)
downloadlinux-3c10c9c45e290022ca7d2aa1ad33a0b6ed767520.tar.xz
powerpc/mpic: Fix regression caused by change of default IRQ affinity
The Freescale implementation of MPIC only allows a single CPU destination for non-IPI interrupts. We add a flag to the mpic_init to distinquish these variants of MPIC. We pull in the irq_choose_cpu from sparc64 to select a single CPU as the destination of the interrupt. This is to deal with the fact that the default smp affinity was changed by commit 18404756765c713a0be4eb1082920c04822ce588 ("genirq: Expose default irq affinity mask (take 3)") to be all CPUs. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/86xx/pic.c')
-rw-r--r--arch/powerpc/platforms/86xx/pic.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/86xx/pic.c b/arch/powerpc/platforms/86xx/pic.c
index 8881c5de500d..668275d9e668 100644
--- a/arch/powerpc/platforms/86xx/pic.c
+++ b/arch/powerpc/platforms/86xx/pic.c
@@ -44,7 +44,8 @@ void __init mpc86xx_init_irq(void)
mpic = mpic_alloc(np, res.start,
MPIC_PRIMARY | MPIC_WANTS_RESET |
- MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS,
+ MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
+ MPIC_SINGLE_DEST_CPU,
0, 256, " MPIC ");
of_node_put(np);
BUG_ON(mpic == NULL);