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powerpc/mmiowb: Hook up mmwiob() implementation to asm-generic code

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In a bid to kill off explicit mmiowb() usage in driver code, hook up
the asm-generic mmiowb() tracking code but provide a definition of
arch_mmiowb_state() so that the tracking data can remain in the paca
as it does at present

This replaces the existing (flawed) implementation.

Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Will Deacon 2019-02-22 14:45:42 +00:00
commit 420af15547
7 changed files with 33 additions and 50 deletions
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