gpu: nvgpu: Abstract rw_semaphore implementation

Abstract implementation of rw_semaphore. In Linux it's implemented
in terms of rw_semaphore. Change deterministic_busy to use the new
implementation.

JIRA NVGPU-259

Change-Id: Ia9c1b6e397581bff7711c5ab6fb76ef6d23cff87
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1570405
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index cf13999a..b6f6a97b 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -58,6 +58,7 @@ struct nvgpu_mem_sgt;
 #include <nvgpu/pmu.h>
 #include <nvgpu/atomic.h>
 #include <nvgpu/barrier.h>
+#include <nvgpu/rwsem.h>
 
 #include "clk_gk20a.h"
 #include "ce2_gk20a.h"
@@ -1082,7 +1083,7 @@ struct gk20a {
          * for submits and held for channel lifetime but dropped for an ongoing
          * gk20a_do_idle().
          */
-        struct rw_semaphore deterministic_busy;
+        struct nvgpu_rwsem deterministic_busy;
 
         struct nvgpu_falcon pmu_flcn;
         struct nvgpu_falcon sec2_flcn;