DNI: gpu: nvgpu: Increase GV100 ctxsw timeouts

During bringup and before nvlink is up GV100 on the DDPX platform operates
with a very, very slow sysmem link. In order to get sysmem test to pass
it is neccesary to significantly increase most timeouts by an order the
magnitude.

Bug 2040544

Change-Id: I26858afde4ae80c70f86b47cfff674b6b00b5bf8
Signed-off-by: David Nieto <dmartineznie@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1627417
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/pci.c b/drivers/gpu/nvgpu/common/linux/pci.c
index 928d8354..23604633 100644
--- a/drivers/gpu/nvgpu/common/linux/pci.c
+++ b/drivers/gpu/nvgpu/common/linux/pci.c
@@ -340,7 +340,10 @@ static struct gk20a_platform nvgpu_pci_device[] = {
         .is_railgated = nvgpu_pci_tegra_is_railgated,
         .clk_round_rate = nvgpu_pci_clk_round_rate,
 
-        .ch_wdt_timeout_ms = 7000,
+        /*
+         * WAR: PCIE X1 is very slow, set to very high value till nvlink is up
+         */
+        .ch_wdt_timeout_ms = 30000,
 
         .honors_aperture = true,
         .vbios_min_version = 0x1,