Divya 6885071c64 gpu: nvgpu: bring all supported GRs out of reset ...

- The hardware is designed in such a way that
  if GR engine is not out of reset, it still takes clock.
- This causes ELCG feature to not engage correctly.
- So for iGPU, SW should bring all supported GR
  engines out of reset during gpu boot, if MIG feature
  is not enabled.
- This will help low power feature like elcg to
  engage correctly and improve dynamic power savings.
- For dGPU, all GRs are out of reset by default by dev init.

Bug 200778542

Change-Id: I5f3519f73b4aaf1804fd112f28fe980f58181cd8
Signed-off-by: Divya <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2613718
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2021-11-11 20:37:45 -08:00

..

mc.c

gpu: nvgpu: bring all supported GRs out of reset

2021-11-11 20:37:45 -08:00