udmabuf: use cache_sgt_mapping option

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>
Link: http://patchwork.freedesktop.org/patch/msgid/20191203013627.85991-1-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index 9de539c..be15eb6 100644 (file)
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -94,10 +94,11 @@ static void release_udmabuf(struct dma_buf *buf)
 }
 
 static const struct dma_buf_ops udmabuf_ops = {
-       .map_dma_buf      = map_udmabuf,
-       .unmap_dma_buf    = unmap_udmabuf,
-       .release          = release_udmabuf,
-       .mmap             = mmap_udmabuf,
+       .cache_sgt_mapping = true,
+       .map_dma_buf       = map_udmabuf,
+       .unmap_dma_buf     = unmap_udmabuf,
+       .release           = release_udmabuf,
+       .mmap              = mmap_udmabuf,
 };
 
 #define SEALS_WANTED (F_SEAL_SHRINK)