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/gm20b/fifo_gm20b.c b/drivers/gpu/nvgpu/gm20b/fifo_gm20b.c
index e688c863..8e913f23 100644
--- a/drivers/gpu/nvgpu/gm20b/fifo_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/fifo_gm20b.c
@@ -21,6 +21,7 @@
 #include <nvgpu/timers.h>
 #include <nvgpu/log.h>
 #include <nvgpu/atomic.h>
+#include <nvgpu/barrier.h>
 
 #include <nvgpu/hw/gm20b/hw_ccsr_gm20b.h>
 #include <nvgpu/hw/gm20b/hw_ram_gm20b.h>
@@ -50,7 +51,7 @@ void channel_gm20b_bind(struct channel_gk20a *c)
                 (gk20a_readl(g, ccsr_channel_r(c->chid)) &
                  ~ccsr_channel_enable_set_f(~0)) |
                  ccsr_channel_enable_set_true_f());
-        wmb();
+        nvgpu_smp_wmb();
         nvgpu_atomic_set(&c->bound, true);
 }