The GEM prime helpers do it, so should we. It's also possible to make it optional later.
Signed-off-by: Gurchetan Singh gurchetansingh@chromium.org --- drivers/dma-buf/udmabuf.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c index 9635897458a0..b345e91d831a 100644 --- a/drivers/dma-buf/udmabuf.c +++ b/drivers/dma-buf/udmabuf.c @@ -108,12 +108,13 @@ static void kunmap_udmabuf(struct dma_buf *buf, unsigned long page_num, }
static const struct dma_buf_ops udmabuf_ops = { - .map_dma_buf = map_udmabuf, - .unmap_dma_buf = unmap_udmabuf, - .release = release_udmabuf, - .map = kmap_udmabuf, - .unmap = kunmap_udmabuf, - .mmap = mmap_udmabuf, + .cache_sgt_mapping = true, + .map_dma_buf = map_udmabuf, + .unmap_dma_buf = unmap_udmabuf, + .release = release_udmabuf, + .map = kmap_udmabuf, + .unmap = kunmap_udmabuf, + .mmap = mmap_udmabuf, };
#define SEALS_WANTED (F_SEAL_SHRINK)