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, 2 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 4878fdd6..47fd3aef 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -48,6 +48,7 @@ struct nvgpu_cpu_time_correlation_sample;
 #include <nvgpu/kref.h>
 #include <nvgpu/falcon.h>
 #include <nvgpu/pmu.h>
+#include <nvgpu/atomic.h>
 
 #include "clk_gk20a.h"
 #include "ce2_gk20a.h"
@@ -1038,7 +1039,7 @@ struct gk20a {
          */
         unsigned long *enabled_flags;
 
-        atomic_t usage_count;
+        nvgpu_atomic_t usage_count;
 
         struct kref refcount;
 
@@ -1205,7 +1206,7 @@ struct gk20a {
 
         struct gk20a_channel_worker {
                 struct nvgpu_thread poll_task;
-                atomic_t put;
+                nvgpu_atomic_t put;
                 struct nvgpu_cond wq;
                 struct nvgpu_list_node items;
                 struct nvgpu_spinlock items_lock;