| From | Michael Ellerman <> | Subject | Re: [mm PATCH v2 18/26] arch/powerpc: Add option to skip DMA sync as a part of mapping | Date | Fri, 04 Nov 2016 14:16:01 +1100 |
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Alexander Duyck <alexander.h.duyck@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@kernel.crashing.org> > Cc: Paul Mackerras <paulus@samba.org> > Cc: Michael Ellerman <mpe@ellerman.id.au> > Cc: linuxppc-dev@lists.ozlabs.org > Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> > --- > arch/powerpc/kernel/dma.c | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-)
LGTM.
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
cheers
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