gpu: nvgpu: add ref counting for GPU sched ctrl

Jira VFND-1968

Change-Id: Id84c5732e312e44db3d412df5c21e429227dd7fa
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: http://git-master/r/1171286
(cherry picked from commit 13a3a4355914635ed175708affef17dc8ef0b133)
Reviewed-on: http://git-master/r/1177824
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h
index 2819dd1c..e1960102 100644
--- a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h
@@ -23,6 +23,7 @@ bool gk20a_is_channel_marked_as_tsg(struct channel_gk20a *ch);
 
 int gk20a_tsg_dev_release(struct inode *inode, struct file *filp);
 int gk20a_tsg_dev_open(struct inode *inode, struct file *filp);
+void gk20a_tsg_release(struct kref *ref);
 int gk20a_tsg_open(struct gk20a *g, struct file *filp);
 long gk20a_tsg_dev_ioctl(struct file *filp,
                          unsigned int cmd, unsigned long arg);