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, 4 insertions, 4 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/debug_fifo.c b/drivers/gpu/nvgpu/common/linux/debug_fifo.c
index a240a138..1763eb7e 100644
--- a/drivers/gpu/nvgpu/common/linux/debug_fifo.c
+++ b/drivers/gpu/nvgpu/common/linux/debug_fifo.c
@@ -167,7 +167,7 @@ static int gk20a_fifo_profile_enable(void *data, u64 val)
                                 }
                                 kref_init(&f->profile.ref);
                         }
-                        atomic_set(&f->profile.get, 0);
+                        atomic_set(&f->profile.get.atomic_var, 0);
                         f->profile.enabled = true;
                 }
         }
@@ -246,7 +246,7 @@ static int gk20a_fifo_profile_stats(struct seq_file *s, void *unused)
                 return 0;
         }
 
-        get = atomic_read(&g->fifo.profile.get);
+        get = atomic_read(&g->fifo.profile.get.atomic_var);
 
         __gk20a_fifo_create_stats(g, percentiles_ioctl,
                 PROFILE_IOCTL_EXIT, PROFILE_IOCTL_ENTRY);
@@ -311,7 +311,7 @@ void gk20a_fifo_debugfs_init(struct gk20a *g)
 
         nvgpu_mutex_init(&g->fifo.profile.lock);
         g->fifo.profile.enabled = false;
-        atomic_set(&g->fifo.profile.get, 0);
+        atomic_set(&g->fifo.profile.get.atomic_var, 0);
         atomic_set(&g->fifo.profile.ref.refcount, 0);
 
         debugfs_create_file("enable", 0600, profile_root, g,
@@ -342,7 +342,7 @@ struct fifo_profile_gk20a *gk20a_fifo_profile_acquire(struct gk20a *g)
         /* If kref is zero, profiling is not enabled */
         if (!kref_get_unless_zero(&f->profile.ref))
                 return NULL;
-        index = atomic_inc_return(&f->profile.get);
+        index = atomic_inc_return(&f->profile.get.atomic_var);
         profile = &f->profile.data[index % FIFO_PROFILING_ENTRIES];
 
         return profile;