sh: PMB locking overhaul.

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This implements some locking for the PMB code. A high level rwlock is
added for dealing with rw accesses on the entry map while a per-entry
data structure spinlock is added to deal with the PMB entry changing out
from underneath us.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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This commit is contained in:

Paul Mundt 2010-02-17 21:17:02 +09:00

parent 0065b96775

commit d53a0d33bc

2 changed files with 114 additions and 56 deletions

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18

arch/sh/include/asm/mmu.h

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152

arch/sh/mm/pmb.c

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