nvgpu: pmu: cleanup init thread on destroy

In nvgpu_kill_task_pg_init(), call nvgpu_thread_join()
if the init thread is no longer running in order to
reclaim thread resources.

Bug 2452799
JIRA ESRM-437

Change-Id: Id9c67f689027f00039ac2df226ee9c28ad89dd1d
Signed-off-by: Peter Daifuku <pdaifuku@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1967983
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1970058
Reviewed-by: Shmuel Ungerfeld <sungerfeld@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Tested-by: Shmuel Ungerfeld <sungerfeld@nvidia.com>
Reviewed-by: Rahul Jain (SW-TEGRA) <rahuljain@nvidia.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/thread.h b/drivers/gpu/nvgpu/include/nvgpu/thread.h
index b113f972..eac06ef1 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/thread.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/thread.h
@@ -80,4 +80,13 @@ bool nvgpu_thread_should_stop(struct nvgpu_thread *thread);
  */
 bool nvgpu_thread_is_running(struct nvgpu_thread *thread);
 
+/**
+ * nvgpu_thread_join - join a thread to reclaim resources
+ * after it has exited
+ *
+ * @thread - thread to join
+ *
+ */
+void nvgpu_thread_join(struct nvgpu_thread *thread);
+
 #endif /* NVGPU_THREAD_H */