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: I97380c3b211733e682f198c35f35640af203359c
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1541197
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Sourab Gupta <sourabg@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c b/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c
index c2792414..48d14e74 100644
--- a/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c
@@ -24,6 +24,7 @@
 #include <nvgpu/soc.h>
 #include <nvgpu/debug.h>
 #include <nvgpu/nvhost_t19x.h>
+#include <nvgpu/barrier.h>
 
 #include "gk20a/gk20a.h"
 #include "gk20a/fifo_gk20a.h"
@@ -247,7 +248,7 @@ void gv11b_userd_gp_put(struct gk20a *g, struct channel_gk20a *c)
         nvgpu_mem_wr32(g, userd_mem, offset + ram_userd_gp_put_w(),
                                                         c->gpfifo.put);
         /* commit everything to cpu */
-        smp_mb();
+        nvgpu_smp_mb();
 
         gv11b_ring_channel_doorbell(c);
 }