gpu: nvgpu: Nvgpu abstraction for linux barriers.

construct wrapper nvgpu_* methods to replace
mb,rmb,wmb,smp_mb,smp_rmb,smp_wmb,read_barrier_depends and
smp_read_barrier_depends.

NVGPU-122

Change-Id: I8d24dd70fef5cb0fadaacc15f3ab11531667a0df
Signed-off-by: Debarshi <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1541199
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sourab Gupta <sourabg@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/common/pmu/pmu.c b/drivers/gpu/nvgpu/common/pmu/pmu.c
index 58108722..63597d10 100644
--- a/drivers/gpu/nvgpu/common/pmu/pmu.c
+++ b/drivers/gpu/nvgpu/common/pmu/pmu.c
@@ -16,6 +16,7 @@
 #include <nvgpu/log.h>
 #include <nvgpu/pmuif/nvgpu_gpmu_cmdif.h>
 #include <nvgpu/enabled.h>
+#include <nvgpu/barrier.h>
 
 #include "gk20a/gk20a.h"
 
@@ -394,7 +395,7 @@ void nvgpu_pmu_state_change(struct gk20a *g, u32 pmu_state,
         }
 
         /* make status visible */
-        smp_mb();
+        nvgpu_smp_mb();
 }
 
 static int nvgpu_pg_init_task(void *arg)