tree d2f9f62c176a96747c97b2f0246af7f113c6707a
parent 33c77e53d838dc27e9d2edec5b6ab6a11861fb32
author Alexander Duyck <alexander.h.duyck@intel.com> 1481756721 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1481760248 -0800

arch/xtensa: add option to skip DMA sync as a part of mapping

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.

Link: http://lkml.kernel.org/r/20161110113555.76501.52536.stgit@ahduyck-blue-test.jf.intel.com
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>