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, 7 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
index cfe7745d..ab3dc3f9 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
@@ -163,7 +163,7 @@ struct gk20a_dmabuf_priv {
 
         int pin_count;
 
-        struct list_head states;
+        struct nvgpu_list_node states;
 
         u64 buffer_id;
 };
@@ -232,9 +232,10 @@ static void gk20a_mm_delete_priv(void *_priv)
         }
 
         /* Free buffer states */
-        list_for_each_entry_safe(s, s_tmp, &priv->states, list) {
+        nvgpu_list_for_each_entry_safe(s, s_tmp, &priv->states,
+                                gk20a_buffer_state, list) {
                 gk20a_fence_put(s->fence);
-                list_del(&s->list);
+                nvgpu_list_del(&s->list);
                 nvgpu_kfree(g, s);
         }
 
@@ -4067,7 +4068,7 @@ int gk20a_dmabuf_alloc_drvdata(struct dma_buf *dmabuf, struct device *dev)
         }
 
         nvgpu_mutex_init(&priv->lock);
-        INIT_LIST_HEAD(&priv->states);
+        nvgpu_init_list_node(&priv->states);
         priv->buffer_id = ++priv_count;
         priv->g = g;
         dma_buf_set_drvdata(dmabuf, dev, priv, gk20a_mm_delete_priv);
@@ -4101,7 +4102,7 @@ int gk20a_dmabuf_get_state(struct dma_buf *dmabuf, struct device *dev,
 
         nvgpu_mutex_acquire(&priv->lock);
 
-        list_for_each_entry(s, &priv->states, list)
+        nvgpu_list_for_each_entry(s, &priv->states, gk20a_buffer_state, list)
                 if (s->offset == offset)
                         goto out;
 
@@ -4113,9 +4114,9 @@ int gk20a_dmabuf_get_state(struct dma_buf *dmabuf, struct device *dev,
         }
 
         s->offset = offset;
-        INIT_LIST_HEAD(&s->list);
+        nvgpu_init_list_node(&s->list);
         nvgpu_mutex_init(&s->lock);
-        list_add_tail(&s->list, &priv->states);
+        nvgpu_list_add_tail(&s->list, &priv->states);
 
 out:
         nvgpu_mutex_release(&priv->lock);