powerpc/mm: any thread in one core can be the first to setup TLB1

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On e6500, in the case of cpu hotplug, either thread in one core
may be the first thread initilzing the TLB1. The subsequent threads
must not setup it again.

The code is derived from the comment of Scott Wood.

Signed-off-by: Chenhui Zhao <chenhui.zhao@freescale.com>
Signed-off-by: Scott Wood <oss@buserror.net>

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This commit is contained in:

chenhui zhao 2015-12-24 08:39:57 +08:00 • committed by Scott Wood

parent d64716caf7

commit ebb9d30a6a

2 changed files with 9 additions and 3 deletions

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8

arch/powerpc/include/asm/cputhreads.h

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4

arch/powerpc/mm/tlb_nohash.c

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