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/gk20a/fecs_trace_gk20a.c b/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c
index 5ee90440..fea3b0fa 100644
--- a/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c
@@ -22,6 +22,7 @@
 #include <nvgpu/hashtable.h>
 #include <nvgpu/circ_buf.h>
 #include <nvgpu/thread.h>
+#include <nvgpu/barrier.h>
 
 #include "ctxsw_trace_gk20a.h"
 #include "fecs_trace_gk20a.h"
@@ -370,7 +371,7 @@ int gk20a_fecs_trace_poll(struct gk20a *g)
         }
 
         /* ensure FECS records has been updated before incrementing read index */
-        wmb();
+        nvgpu_smp_wmb();
         gk20a_fecs_trace_set_read_index(g, read);
 
 done: