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authorOlof Johansson <olof@lixom.net>2007-12-27 22:16:29 -0600
committerOlof Johansson <olof@lixom.net>2007-12-28 09:22:25 -0600
commitd87bf3bed71375b141e95b5fdbac413ac4b65184 (patch)
tree4920be669338029456f625e6f6a587b8e31185b0 /arch/powerpc/platforms/pasemi
parentf365355e65ee619e3b7baeca69b46fd2c4a5ec68 (diff)
[POWERPC] pasemi: Distribute interrupts evenly across cpus
By default the OpenPIC on PWRficient will bias to one core (since that will improve changes of the other core being able to stay idle/powered down). However, this conflicts with most irq load balancing schemes, since setting an interrupt to be delivered to either core doesn't really result in the load being shared. It also doesn't work well with the soft irq disable feature of PPC, since EE will stay on until the first interrupt is taken while soft disabled. Set the gconf0 config bit that enables even distribution of interrupts among the two cores. Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/powerpc/platforms/pasemi')
-rw-r--r--arch/powerpc/platforms/pasemi/setup.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index eb271fded87..1940e678878 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -224,7 +224,7 @@ static __init void pas_init_IRQ(void)
openpic_addr = of_read_number(opprop, naddr);
printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
- mpic_flags = MPIC_PRIMARY | MPIC_LARGE_VECTORS;
+ mpic_flags = MPIC_PRIMARY | MPIC_LARGE_VECTORS | MPIC_NO_BIAS;
nmiprop = of_get_property(mpic_node, "nmi-source", NULL);
if (nmiprop)