gpu: nvgpu: scale ptimer based timeouts

bug 1603226

host based timeouts use ptimer for detecting
timeouts. on gk20a and gm20b ptimer runs 2.6x
slower. scale the fifo_eng_timeout to account
for this

Change-Id: Ie44718382953e36436ea47d6e89b9a225d5c2070
Signed-off-by: Vijayakumar <vsubbu@nvidia.com>
Reviewed-on: http://git-master/r/799983
(cherry picked from commit d1d837fd09ff0f035feff1757c67488404c23cc6)
Reviewed-on: http://git-master/r/808250
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c b/drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c
index f8e1e3b7..73e7303e 100644
--- a/drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c
+++ b/drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c
@@ -812,6 +812,7 @@ struct gk20a_platform gk20a_tegra_platform = {
         .enable_elcg            = true,
         .enable_elpg            = true,
         .enable_aelpg           = true,
+        .ptimerscaling10x       = 26,
 
         .force_reset_in_do_idle = false,
 
@@ -858,6 +859,7 @@ struct gk20a_platform gm20b_tegra_platform = {
         .enable_elcg            = true,
         .enable_elpg            = true,
         .enable_aelpg           = true,
+        .ptimerscaling10x       = 26,
 
         .force_reset_in_do_idle = false,