gpu: nvgpu: vgpu: init gr->ch_tlb_lock

The bug was exposed when enable CONFIG_DEBUG_SPINLOCK.

Jira VFND-4943

Change-Id: I01720f93fe6de9b85987d490df852c8d1c8fb1c2
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1703656
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Thomas Fleury <tfleury@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sourab Gupta <sourabg@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@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 9d765984..a512c36b 100644
--- a/drivers/gpu/nvgpu/vgpu/gr_vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/gr_vgpu.c
@@ -899,6 +899,7 @@ static int vgpu_gr_init_gr_setup_sw(struct gk20a *g)
                 goto clean_up;
 
         nvgpu_mutex_init(&gr->ctx_mutex);
+        nvgpu_spinlock_init(&gr->ch_tlb_lock);
 
         gr->sm_error_states = nvgpu_kzalloc(g,
                         sizeof(struct nvgpu_gr_sm_error_state) *