powerpc: Use ibm, chip-id property to compute cpu_core_mask if available

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Some systems have an ibm,chip-id property in the cpu nodes in the
device tree.  On these systems, we now use that to compute the
cpu_core_mask (i.e. the set of core siblings) rather than looking
at cache properties.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Tested-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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Paul Mackerras 2013-08-12 16:29:33 +10:00 • committed by Benjamin Herrenschmidt

parent a8a5356cd5

commit 256f2d4b46

1 changed files with 45 additions and 3 deletions

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arch/powerpc/kernel/smp.c

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