gpu: nvgpu: kernel version check for dma_buf_ops

In K4.14, dma_buf_ops members are renamed from kmap_atomic to map_atomic
and kmap to map. So put the kernel version check to fix the build error
for k4.14.

Bug 200414723
Bug 200421495

Change-Id: Ic959960a43d2247f9cd4b530f9172a152bcbc08b
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1747013
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Debarshi Dutta <ddutta@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/vidmem.c b/drivers/gpu/nvgpu/os/linux/vidmem.c
index 136d4a10..df1a905d 100644
--- a/drivers/gpu/nvgpu/os/linux/vidmem.c
+++ b/drivers/gpu/nvgpu/os/linux/vidmem.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2017-2018, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -15,6 +15,7 @@
  */
 
 #include <linux/dma-buf.h>
+#include <linux/version.h>
 #include <uapi/linux/nvgpu.h>
 
 #ifdef CONFIG_NVGPU_USE_TEGRA_ALLOC_FD
@@ -134,8 +135,13 @@ static const struct dma_buf_ops gk20a_vidbuf_ops = {
         .map_dma_buf      = gk20a_vidbuf_map_dma_buf,
         .unmap_dma_buf    = gk20a_vidbuf_unmap_dma_buf,
         .release          = gk20a_vidbuf_release,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)
+        .map_atomic      = gk20a_vidbuf_kmap_atomic,
+        .map             = gk20a_vidbuf_kmap,
+#else
         .kmap_atomic      = gk20a_vidbuf_kmap_atomic,
         .kmap             = gk20a_vidbuf_kmap,
+#endif
         .mmap             = gk20a_vidbuf_mmap,
         .set_drvdata      = gk20a_vidbuf_set_private,
         .get_drvdata      = gk20a_vidbuf_get_private,