Cory Perry 070c7799d6 gpu: nvgpu: fix suspending all SMs ...

In gk20a_suspend_all_sms(), we currently loop
over all GPCs and then loop over all TPCs in inner
loop
But this is incorrect and leads to SM with
invalid GPC,TPC ids

Fix this by looping over number of TPCs in each
GPC in inner loop

Also, fix gk20a_gr_wait_for_sm_lock_down() as
per below
- we right now wait infinitely for SM to lock down
- restrict this wait with a timeout on silicon
  platforms
- return ETIMEDOUT instead of EAGAIN
- add more debug prints with additional data
  for SM lock down failures

Bug 200258704

Change-Id: Id6fe32e579647fd8ac287a4b2ec80cbf98791e0d
Signed-off-by: Cory Perry <cperry@nvidia.com>
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1316471
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-on: http://git-master/r/1322373
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

2017-03-29 19:34:36 -07:00

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