gpu: nvgpu: Use nvgpu_cond in channel worker

Change the channel worker to use nvgpu_cond instead of Linux wait
queue.

JIRA NVGPU-14

Change-Id: Iac856dca2acfa80065f5d2fd542cd2a6278333a4
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1469850
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Lakshmanan M <lm@nvidia.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index 0d615d65..65dc1c72 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -1689,7 +1689,7 @@ static int __gk20a_channel_worker_wakeup(struct gk20a *g)
          */
 
         put = atomic_inc_return(&g->channel_worker.put);
-        wake_up(&g->channel_worker.wq);
+        nvgpu_cond_signal(&g->channel_worker.wq);
 
         return put;
 }
@@ -1783,8 +1783,8 @@ static int gk20a_channel_poll_worker(void *arg)
         while (!nvgpu_thread_should_stop(&worker->poll_task)) {
                 bool got_events;
 
-                got_events = wait_event_timeout(
-                                worker->wq,
+                got_events = NVGPU_COND_WAIT(
+                                &worker->wq,
                                 __gk20a_channel_worker_pending(g, get),
                                 timeout) > 0;
 
@@ -1808,7 +1808,7 @@ int nvgpu_channel_worker_init(struct gk20a *g)
         char thread_name[64];
 
         atomic_set(&g->channel_worker.put, 0);
-        init_waitqueue_head(&g->channel_worker.wq);
+        nvgpu_cond_init(&g->channel_worker.wq);
         nvgpu_init_list_node(&g->channel_worker.items);
         nvgpu_spinlock_init(&g->channel_worker.items_lock);
         snprintf(thread_name, sizeof(thread_name),