gpu: nvgpu: vgpu: call nvgpu_init_ltc_support

vgpu needs to call nvgpu_init_ltc_support to floor sweep and
set ltc_count.
And set gops.ltc.set_enabled to null as guest is not allowed to change
ltc settings.

Jira VQRM-2345

Change-Id: I83517d631aa947db4a0a4c312f0cecda9ba03973
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1703626
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c b/drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c
index c5572603..90fbc079 100644
--- a/drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c
+++ b/drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c
@@ -31,6 +31,7 @@
 #include <nvgpu/soc.h>
 #include <nvgpu/ctxsw_trace.h>
 #include <nvgpu/defaults.h>
+#include <nvgpu/ltc.h>
 
 #include "vgpu_linux.h"
 #include "vgpu/fecs_trace_vgpu.h"
@@ -177,6 +178,12 @@ int vgpu_pm_finalize_poweron(struct device *dev)
         if (g->ops.ltc.init_fs_state)
                 g->ops.ltc.init_fs_state(g);
 
+        err = nvgpu_init_ltc_support(g);
+        if (err) {
+                nvgpu_err(g, "failed to init ltc");
+                goto done;
+        }
+
         err = vgpu_init_mm_support(g);
         if (err) {
                 nvgpu_err(g, "failed to init gk20a mm");