gpu: nvgpu: vgpu: add channel wdt support

- avoid dump gr registers for vgpu
- init wdt lock

Bug 1776876
JIRA VFND-2151

Change-Id: I73293e0d23b614129c763cb22b09156a8e1432cc
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: http://git-master/r/1202256
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/gr_vgpu.c b/drivers/gpu/nvgpu/vgpu/gr_vgpu.c
index 87faa2f2..783b2f55 100644
--- a/drivers/gpu/nvgpu/vgpu/gr_vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/gr_vgpu.c
@@ -1086,4 +1086,5 @@ void vgpu_init_gr_ops(struct gpu_ops *gops)
         gops->gr.set_sm_debug_mode = vgpu_gr_set_sm_debug_mode;
         gops->gr.update_smpc_ctxsw_mode = vgpu_gr_update_smpc_ctxsw_mode;
         gops->gr.update_hwpm_ctxsw_mode = vgpu_gr_update_hwpm_ctxsw_mode;
+        gops->gr.dump_gr_regs = NULL;
 }