Russell King 2bb3135166 ARM: GIC: fix GIC cpumask initialization ... Punit Agrawal reports: > I was trying to boot 3.8-rc5 on Realview EB 11MPCore using > realview-smp_defconfig as a starting point but the kernel failed to > progress past the log below (config attached). > > Pawel suggested I try reverting 384a290283 - "ARM: gic: use a private > mapping for CPU target interfaces" that you've authored. With this > commit reverted the kernel boots. > > I am not quite sure why the commit breaks 11MPCore but Pawel (cc'd) > might be able to shed light on that. Some early GIC implementations return zero for the first distributor CPU routing register. This means we can't rely on that telling us which CPU interface we're connected to. We know that these platforms implement PPIs for IRQs 29-31 - but we shouldn't assume that these will always be populated. So, instead, scan for a non-zero CPU routing register in the first 32 IRQs and use that as our CPU mask. Reported-by: Punit Agrawal <punit.agrawal@arm.com> Reviewed-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>		2013-02-08 10:17:22 +00:00
..
dmabounce.c	ARM: dma-mapping: add support for dma_get_sgtable()	2012-07-30 12:25:47 +02:00
gic.c	ARM: GIC: fix GIC cpumask initialization	2013-02-08 10:17:22 +00:00
icst.c
it8152.c	ARM: pxa: armcore: fix PCI PIO warnings	2012-10-09 21:58:01 +02:00
Kconfig	ARM: config: sort select statements alphanumerically	2012-10-13 17:11:28 +01:00
locomo.c
Makefile	ARM: remove ixp23xx and ixp2000 platforms	2012-04-06 08:26:18 -05:00
sa1111.c	ARM: drivers: remove __dev* attributes.	2013-01-03 15:57:04 -08:00
scoop.c	ARM: drivers: remove __dev* attributes.	2013-01-03 15:57:04 -08:00
sharpsl_param.c
timer-sp.c	ARM: 7586/1: sp804: set cpumask to cpu_possible_mask for clock event device	2012-11-28 09:46:57 +00:00
via82c505.c	ARM: PCI: provide a default bus scan implementation	2012-05-13 17:12:17 +01:00
vic.c	ARM: 7611/1: VIC: fix bug in VIC irqdomain code	2013-01-02 10:35:07 +00:00