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[RFC,1/6] udmabuf: use cache_sgt_mapping option

Message ID 20190801022517.1903-2-gurchetansingh@chromium.org (mailing list archive)
State New, archived
Headers show
Series udmabuf guest <--> host interaction model | expand

Commit Message

Gurchetan Singh Aug. 1, 2019, 2:25 a.m. UTC 
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(-)
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Patch

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)