gpu: nvgpu: Add wrapper over atomic_t and atomic64_t

- added wrapper structs nvgpu_atomic_t and nvgpu_atomic64_t over
  atomic_t and atomic64_t
- added nvgpu_atomic_* and nvgpu_atomic64_* APIs to access the above
  wrappers.

JIRA NVGPU-121

Change-Id: I61667bb0a84c2fc475365abb79bffb42b8b4786a
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1533044
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c b/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c
index f1ae2f1f..c8519905 100644
--- a/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c
@@ -43,7 +43,7 @@ static void vgpu_channel_bind(struct channel_gk20a *ch)
         WARN_ON(err || msg.ret);
 
         wmb();
-        atomic_set(&ch->bound, true);
+        nvgpu_atomic_set(&ch->bound, true);
 }
 
 static void vgpu_channel_unbind(struct channel_gk20a *ch)
@@ -51,7 +51,7 @@ static void vgpu_channel_unbind(struct channel_gk20a *ch)
 
         gk20a_dbg_fn("");
 
-        if (atomic_cmpxchg(&ch->bound, true, false)) {
+        if (nvgpu_atomic_cmpxchg(&ch->bound, true, false)) {
                 struct tegra_vgpu_cmd_msg msg;
                 struct tegra_vgpu_channel_config_params *p =
                                 &msg.params.channel_config;
@@ -425,7 +425,7 @@ static int vgpu_fifo_preempt_channel(struct gk20a *g, u32 chid)
 
         gk20a_dbg_fn("");
 
-        if (!atomic_read(&ch->bound))
+        if (!nvgpu_atomic_read(&ch->bound))
                 return 0;
 
         msg.cmd = TEGRA_VGPU_CMD_CHANNEL_PREEMPT;