openwrt/target/linux/bcm27xx/patches-5.4/950-0717-udmabuf-use-cache_sgt_mapping-option.patch

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From d57aecba0cd291e0c28e2c82c3d4bce06c5b5b94 Mon Sep 17 00:00:00 2001
From: Gurchetan Singh <gurchetansingh@chromium.org>
Date: Mon, 2 Dec 2019 17:36:24 -0800
Subject: [PATCH] udmabuf: use cache_sgt_mapping option
Commit bc7a71da43b48333f84c6534ab43d240e34cf9eb uptream.
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>
---
drivers/dma-buf/udmabuf.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -94,10 +94,11 @@ static void release_udmabuf(struct dma_b
}
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)