From 14b9247019432fc25e606b78262eb16a4a33b8ed Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Fri, 8 Jul 2011 11:12:42 +0000 Subject: powerpc/mpic: Add support for discontiguous cores There is one place in the MPIC driver that assumes that the cores are numbered from 0 to n-1. However, this is not true if the CPUs are not numbered sequentially. This can happen on a eight-core SOC where cores two and three are removed in the device tree. So instead of blindly looping, we iterate over the discovered CPUs and use the SMP ID as the index. This means that we no longer ask the MPIC how many CPUs there are, so we also delete mpic->num_cpus. We also catch if the number of CPUs in the SOC exceeds the number that the MPIC supports. This should never happen, of course, but it's good to be sure. Signed-off-by: Timur Tabi Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/mpic.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/mpic.h b/arch/powerpc/include/asm/mpic.h index df18989e78d4..e6fae49e0b74 100644 --- a/arch/powerpc/include/asm/mpic.h +++ b/arch/powerpc/include/asm/mpic.h @@ -273,8 +273,6 @@ struct mpic unsigned int irq_count; /* Number of sources */ unsigned int num_sources; - /* Number of CPUs */ - unsigned int num_cpus; /* default senses array */ unsigned char *senses; unsigned int senses_count; -- cgit v1.2.1