gpu: nvgpu: add g->fifo_eng_timeout_us

Add g->fifo_eng_timeout_us to define engine timeout in microseconds.
It is initialized with GRFIFO_TIMEOUT_CHECK_PERIOD_US. In RM server
case, it can be overriden with value defined in device tree.

Jira EVLR-2674

Change-Id: I69ac2ce779fe575566c8ba48e8cd2d0e6b2d93cf
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1728391
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/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 01e0511d..f7bec806 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -1320,6 +1320,7 @@ struct gk20a {
         u32 gr_idle_timeout_default;
         bool timeouts_disabled_by_user;
         unsigned int ch_wdt_timeout_ms;
+        u32 fifo_eng_timeout_us;
 
         struct nvgpu_mutex poweron_lock;
         struct nvgpu_mutex poweroff_lock;