msm: kgsl: Add the flags for IO coherency

Add a flag in the UAPI header to allow userspace to mark a buffer
as IO coherent. If this flag is set, mark the buffer as IO
coherent when mapping it.

Change-Id: I4cd28144cf818fa016e085f6f5ec29b778ccd8ad
Signed-off-by: Shrenuj Bansal <shrenujb@codeaurora.org>
Signed-off-by: Lynus Vaz <lvaz@codeaurora.org>
7 files changed