gpu: nvgpu: remove sync_fence dependencies from fence_gk20a

Replaced all instances of sync_fence in gk20a_fence* code with
nvgpu_os_fence. Added the API install_fence for the nvgpu_os_fence
abstraction. sync_fence mechanism and its dependencies are completely
removed from the fence_gk20a methods. Due to the recent os_fence changes
and the changes to fence_gk20a, we can finally get rid of all the CONFIG_SYNCS
present in the submit path.

JIRA NVGPU-66

Change-Id: I3551dab04b93b1e94db83fc102a41872be89e9ed
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1701245
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/os_fence_android.c b/drivers/gpu/nvgpu/common/linux/os_fence_android.c
index d8f70639..9be8c6c0 100644
--- a/drivers/gpu/nvgpu/common/linux/os_fence_android.c
+++ b/drivers/gpu/nvgpu/common/linux/os_fence_android.c
@@ -52,6 +52,14 @@ void nvgpu_os_fence_android_drop_ref(struct nvgpu_os_fence *s)
         nvgpu_os_fence_clear(s);
 }
 
+void nvgpu_os_fence_android_install_fd(struct nvgpu_os_fence *s, int fd)
+{
+        struct sync_fence *fence = nvgpu_get_sync_fence(s);
+
+        sync_fence_get(fence);
+        sync_fence_install(fence, fd);
+}
+
 int nvgpu_os_fence_fdget(struct nvgpu_os_fence *fence_out,
         struct channel_gk20a *c, int fd)
 {