ARM: 7177/1: GIC: avoid skipping non-existent PPIs in irq_start calculation
authorWill Deacon <will.deacon@arm.com>
Fri, 25 Nov 2011 18:23:36 +0000 (19:23 +0100)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Sat, 26 Nov 2011 21:58:55 +0000 (21:58 +0000)
commitfe41db7b3aca512e19b8ef4fbd5ad55545005d25
treec48f6e939edb9140484d511c42dba65487dc92b2
parentabdd7b91dab2f8b2e32e90e4b7e809ffb462a662
ARM: 7177/1: GIC: avoid skipping non-existent PPIs in irq_start calculation

Commit 4294f8baa ("ARM: gic: add irq_domain support") defines irq_start
as irq_start = (irq_start & ~31) + 16; On a platform with a GIC and a
CPU without PPIs, this results in irq_start being off by 16.

This patch fixes gic_init so that we only carve out a PPI space when
PPIs exist for the GIC being initialised.

Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
arch/arm/common/gic.c