gpu: nvgpu: shutdown nvlink in driver remove

During driver remove, if nvlink is set up, gracefully
shut it down so that it can be enumerated again.

Bug 1987855

Change-Id: Ibd83a5e29364b22264e689aa879569a9cccf0f79
Signed-off-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1746073
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/gv100/nvlink_gv100.h b/drivers/gpu/nvgpu/gv100/nvlink_gv100.h
index 6310af28..75595bca 100644
--- a/drivers/gpu/nvgpu/gv100/nvlink_gv100.h
+++ b/drivers/gpu/nvgpu/gv100/nvlink_gv100.h
@@ -50,6 +50,7 @@ u32 gv100_nvlink_link_get_rx_sublink_state(struct gk20a *g, u32 link_id);
 int gv100_nvlink_link_set_sublink_mode(struct gk20a *g, u32 link_id,
         bool is_rx_sublink, u32 mode);
 int gv100_nvlink_interface_init(struct gk20a *g);
+int gv100_nvlink_interface_disable(struct gk20a *g);
 int gv100_nvlink_reg_init(struct gk20a *g);
 int gv100_nvlink_shutdown(struct gk20a *g);
 int gv100_nvlink_early_init(struct gk20a *g);