gpu: nvgpu: API to post channel events

Add new API gk20a_channel_post_event() which adds
channel event and also calls wake_up() for channel's
semaphore wq

Bug 200156699

Change-Id: If56f1bf8edcce79c9248809f8476ed853b7d2d9d
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/927132
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/gr_vgpu.c b/drivers/gpu/nvgpu/vgpu/gr_vgpu.c
index 373dfd56..4a22441c 100644
--- a/drivers/gpu/nvgpu/vgpu/gr_vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/gr_vgpu.c
@@ -1,7 +1,7 @@
 /*
  * Virtualized GPU Graphics
  *
- * Copyright (c) 2014-2015, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2016, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -871,8 +871,7 @@ int vgpu_gr_isr(struct gk20a *g, struct tegra_vgpu_gr_intr_info *info)
                 wake_up(&ch->notifier_wq);
                 break;
         case TEGRA_VGPU_GR_INTR_SEMAPHORE:
-                gk20a_channel_event(ch);
-                wake_up(&ch->semaphore_wq);
+                gk20a_channel_post_event(ch);
                 break;
         case TEGRA_VGPU_GR_INTR_SEMAPHORE_TIMEOUT:
                 gk20a_set_error_notifier(ch,