Divya 05a1f927f8 gpu: nvgpu: add golden image check for tpc_pg_mask ...

- Setting different tpc_pg_mask value leads to GPU crash.
- It is observed that with GPU railgating disabled, if
  tpc_pg_mask is set, "the gpu is powered on" error is
  reported and it won't allow to set the tpc_pg_mask, which
  is expected.
- With GPU railgating enabled, the different tpc_pg_mask
  value is set and the GPU is crashed.
- So, add check for golden image initialized before setting the
  TPC, GPC and FBP PG mask.
- This check won't allow to update TPC, GPC and FBP mask after
  golden image initialization and thus no GPU crash happens.

Bug 3544499

Change-Id: Ia003beaaec9dead22da74ea5862a81986780966b
Signed-off-by: Divya <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2672202
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Ninad Malwade <nmalwade@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
Tested-by: Ninad Malwade <nmalwade@nvidia.com>
GVS: Gerrit_Virtual_Submit

2022-02-22 05:57:37 -08:00

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