video: tegra: host: Move LTC debugfs code

Move the LTC debugfs sync code to the gk20a LTC code.

Change-Id: I145b04e1e8aade170c2e9c6b3beb60774c6124f2
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/366178
(cherry picked from commit c099b4fde779942d7559248c30a2df55aa4fd4f4)
Reviewed-on: http://git-master/r/376515
Reviewed-by: Automatic_Commit_Validation_User
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Kevin Huang (Eng-SW) <kevinh@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index 7cfb3c24..1570e12c 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -1416,6 +1416,18 @@ void gk20a_channel_update(struct channel_gk20a *c, int nr_completed)
                 gk20a_idle(c->g->dev);
 }
 
+void add_wait_cmd(u32 *ptr, u32 id, u32 thresh)
+{
+        /* syncpoint_a */
+        ptr[0] = 0x2001001C;
+        /* payload */
+        ptr[1] = thresh;
+        /* syncpoint_b */
+        ptr[2] = 0x2001001D;
+        /* syncpt_id, switch_en, wait */
+        ptr[3] = (id << 8) | 0x10;
+}
+
 static int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
                                 struct nvhost_gpfifo *gpfifo,
                                 u32 num_entries,