gpu: nvgpu: Use nvgpu_cond in semaphore wq

Change semaphore wait queue to use nvgpu_cond instead of Linux wait
queue.

JIRA NVGPU-14

Change-Id: I3be5097ded168300b4480e986218d9f4fd6104b1
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1469852
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index 65dc1c72..536ca9f3 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -252,7 +252,7 @@ void gk20a_channel_abort_clean_up(struct channel_gk20a *ch)
         nvgpu_mutex_release(&ch->joblist.cleanup_lock);
 
         if (released_job_semaphore)
-                wake_up_interruptible_all(&ch->semaphore_wq);
+                nvgpu_cond_broadcast_interruptible(&ch->semaphore_wq);
 
         /*
          * When closing the channel, this scheduled update holds one ref which
@@ -850,7 +850,7 @@ struct channel_gk20a *gk20a_open_new_channel(struct gk20a *g,
          * an address space bound and allocate a gpfifo and grctx. */
 
         init_waitqueue_head(&ch->notifier_wq);
-        init_waitqueue_head(&ch->semaphore_wq);
+        nvgpu_cond_init(&ch->semaphore_wq);
 
         ch->update_fn = NULL;
         ch->update_fn_data = NULL;
@@ -2783,7 +2783,8 @@ void gk20a_channel_semaphore_wakeup(struct gk20a *g, bool post_events)
                 struct channel_gk20a *c = g->fifo.channel+chid;
                 if (gk20a_channel_get(c)) {
                         if (atomic_read(&c->bound)) {
-                                wake_up_interruptible_all(&c->semaphore_wq);
+                                nvgpu_cond_broadcast_interruptible(
+                                                &c->semaphore_wq);
                                 if (post_events) {
                                         if (gk20a_is_channel_marked_as_tsg(c)) {
                                                 struct tsg_gk20a *tsg =