gpu: nvgpu: add HAL to update doorbell

Add new HAL gops.fifo.ring_channel_doorbell() to update channel doorbell
register and to trigger a runlist scan

Set existing API gv11b_ring_channel_doorbell() to this HAL for all volta chips

Jira NVGPUT-18

Change-Id: I9d5e84cf5aa7b763363d84befe169efda00a0932
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1702114
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Seshendra Gadagottu <sgadagottu@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/gv100/hal_gv100.c b/drivers/gpu/nvgpu/gv100/hal_gv100.c
index d1befa0e..d972d4a5 100644
--- a/drivers/gpu/nvgpu/gv100/hal_gv100.c
+++ b/drivers/gpu/nvgpu/gv100/hal_gv100.c
@@ -587,6 +587,7 @@ static const struct gpu_ops gv100_ops = {
                 .preempt_ch_tsg = gv11b_fifo_preempt_ch_tsg,
                 .runlist_hw_submit = gk20a_fifo_runlist_hw_submit,
                 .runlist_wait_pending = gk20a_fifo_runlist_wait_pending,
+                .ring_channel_doorbell = gv11b_ring_channel_doorbell,
         },
         .gr_ctx = {
                 .get_netlist_name = gr_gv100_get_netlist_name,