gpu: nvgpu: use nvgpu list for buffer states

Use nvgpu list APIs instead of linux list APIs
for to store buffer states in gk20a_dmabuf_priv.

Jira NVGPU-13

Change-Id: I9666b2435804b132bb86bb74c0b20590749b153f
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1454689
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
index 53366caf..f4bbec23 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
@@ -87,7 +87,7 @@ struct compbit_store_desc {
 };
 
 struct gk20a_buffer_state {
-        struct list_head list;
+        struct nvgpu_list_node list;
 
         /* The valid compbits and the fence must be changed atomically. */
         struct nvgpu_mutex lock;
@@ -108,6 +108,13 @@ struct gk20a_buffer_state {
         struct gk20a_fence *fence;
 };
 
+static inline struct gk20a_buffer_state *
+gk20a_buffer_state_from_list(struct nvgpu_list_node *node)
+{
+        return (struct gk20a_buffer_state *)
+                ((uintptr_t)node - offsetof(struct gk20a_buffer_state, list));
+};
+
 enum gmmu_pgsz_gk20a {
         gmmu_page_size_small  = 0,
         gmmu_page_size_big    = 1,