gpu: nvgpu: wait ACK for FECS watchdog timeout

On Volta, nvgpu needs to wait for explicit ACK from CTXSW while
setting FECS watchdog timeoout

This is manual port of the fixes 4d7e5026e38528b88a4a168eca9a8b180475b368
and ad89436b03428a42e43042b6a849c15843fdebc4 on dev-main since clean
cherry-pick is not possible due to huge file and structure differences.

Bug 200603566

Change-Id: Icba69998ab45eee5fdf2a29e1ac1067589301be6
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2371708
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/gk20a.h b/drivers/gpu/nvgpu/include/nvgpu/gk20a.h
index 61fe4fb5..9ec4ab6b 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/gk20a.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/gk20a.h
@@ -531,6 +531,7 @@ struct gpu_ops {
                 void (*set_debug_mode)(struct gk20a *g, bool enable);
                 int (*set_mmu_debug_mode)(struct gk20a *g,
                         struct channel_gk20a *ch, bool enable);
+                int (*set_fecs_watchdog_timeout)(struct gk20a *g);
         } gr;
         struct {
                 void (*init_hw)(struct gk20a *g);