gpu: nvgpu: skip clk gating prog for sim/emu.

For Simualtion/Emulation platforms,clock gating
should be skipped as it is not supported.
Added new flags "can_"X"lcg" to check platform
capability before doing SLCG,BLCG and ELCG.

Bug 200314250

Change-Id: I4124d444a77a4c06df8c1d82c6038bfd457f3db0
Signed-off-by: Deepak Goyal <dgoyal@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1566049
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/driver_common.c b/drivers/gpu/nvgpu/common/linux/driver_common.c
index e8530c05..5f2961f4 100644
--- a/drivers/gpu/nvgpu/common/linux/driver_common.c
+++ b/drivers/gpu/nvgpu/common/linux/driver_common.c
@@ -116,6 +116,14 @@ static void nvgpu_init_pm_vars(struct gk20a *g)
                 nvgpu_platform_is_silicon(g) ? platform->enable_mscg : false;
         g->can_elpg =
                 nvgpu_platform_is_silicon(g) ? platform->can_elpg_init : false;
+
+        __nvgpu_set_enabled(g, NVGPU_GPU_CAN_ELCG,
+                nvgpu_platform_is_silicon(g) ? platform->can_elcg : false);
+        __nvgpu_set_enabled(g, NVGPU_GPU_CAN_SLCG,
+                nvgpu_platform_is_silicon(g) ? platform->can_slcg : false);
+        __nvgpu_set_enabled(g, NVGPU_GPU_CAN_BLCG,
+                nvgpu_platform_is_silicon(g) ? platform->can_blcg : false);
+
         g->default_pri_timeout = platform->default_pri_timeout;
         g->aggressive_sync_destroy = platform->aggressive_sync_destroy;
         g->aggressive_sync_destroy_thresh = platform->aggressive_sync_destroy_thresh;