sparc64: Only allocate per-cpu areas for possible cpus.

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This gets us real close to the generic implementation of
setup_per_cpu_areas() except:

1) We store the per-cpu offset into the trap_block[], whereas
   the generic code has it's own static array.

2) We have to initialize the %g5 register to hold the boot cpu's
   per-cpu area offset.

3) The OBP/MDESC cpu info scan is performed at the end.

Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

David S. Miller 2009-04-01 16:22:27 -07:00

parent 73fffc037e

commit 0c243ad81f

1 changed files with 6 additions and 16 deletions

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arch/sparc/kernel/smp_64.c

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