[mm PATCH v2 18/26] arch/powerpc: Add option to skip DMA sync as a part of mapping

[Michael Ellerman]

Alexander Duyck <alexander.h.duyck at intel.com> writes:

> This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to
> avoid invoking cache line invalidation if the driver will just handle it
> via a sync_for_cpu or sync_for_device call.
>
> Cc: Benjamin Herrenschmidt <benh at kernel.crashing.org>
> Cc: Paul Mackerras <paulus at samba.org>
> Cc: Michael Ellerman <mpe at ellerman.id.au>
> Cc: linuxppc-dev at lists.ozlabs.org
> Signed-off-by: Alexander Duyck <alexander.h.duyck at intel.com>
> ---
>  arch/powerpc/kernel/dma.c |    9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)

LGTM.

Acked-by: Michael Ellerman <mpe at ellerman.id.au> (powerpc)

cheers