gpu: nvgpu: APIs to post event id events

Add below channel and TSG APIs to post events
on event_id interface

gk20a_channel_event_id_post_event()
gk20a_tsg_event_id_post_event()

Bug 200089620

Change-Id: I0cfadc9ffdb880b2410f97758fad47905c620db1
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1112267
(cherry picked from commit 9f50d7da4500af4dbf4dabe7916eda6fc220f4fb)
Reviewed-on: http://git-master/r/1120320
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index 4ad9d85b..468ee7f1 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -2583,6 +2583,28 @@ static int gk20a_channel_get_event_data_from_id(struct channel_gk20a *ch,
         }
 }
 
+void gk20a_channel_event_id_post_event(struct channel_gk20a *ch,
+                                       int event_id)
+{
+        struct gk20a_event_id_data *event_id_data;
+        int err = 0;
+
+        err = gk20a_channel_get_event_data_from_id(ch, event_id,
+                                                &event_id_data);
+        if (err)
+                return;
+
+        mutex_lock(&event_id_data->lock);
+
+        gk20a_dbg_info(
+                "posting event for event_id=%d on ch=%d\n",
+                event_id, ch->hw_chid);
+
+        wake_up_interruptible_all(&event_id_data->event_id_wq);
+
+        mutex_unlock(&event_id_data->lock);
+}
+
 static int gk20a_channel_event_id_enable(struct channel_gk20a *ch,
                                          int event_id,
                                          int *fd)