gpu: nvgpu: add read_ptimer to gops

Move all places that read ptimer to use the callback.
It's for add vgpu implementation of read ptimer.

Bug 1395833

Change-Id: Ia339f2f08d75ca4969a443fffc9a61cff1d3d2b7
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: http://git-master/r/1159587
(cherry picked from commit a01f804684f875c9cffc31eb2c1038f2f29ec66f)
Reviewed-on: http://git-master/r/1158449
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/hal_gm20b.c b/drivers/gpu/nvgpu/gm20b/hal_gm20b.c
index cbd3f50b..4f2fffc8 100644
--- a/drivers/gpu/nvgpu/gm20b/hal_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/hal_gm20b.c
@@ -218,6 +218,7 @@ int gm20b_init_hal(struct gk20a *g)
         gops->name = "gm20b";
         gops->chip_init_gpu_characteristics = gk20a_init_gpu_characteristics;
         gops->get_litter_value = gm20b_get_litter_value;
+        gops->read_ptimer = gk20a_read_ptimer;
 
         c->twod_class = FERMI_TWOD_A;
         c->threed_class = MAXWELL_B;