Seema Khowala 7e59e0b09b gpu: nvgpu: save act_eng_bitmask in runlist_info ...

Issue
Currently bitmask of engine indices is being saved.
This will give wrong active engine ids for a given runlist
and s/w will end up checking/polling wrong engine_status
registers as these registers are indexed by active
engine ids. Also reset_eng_bitmask will end up
having wrong value for active engine ids to be reset.

Details for runlists serving engines ids for gv11b are:-
runlist id 0: gr = 0, grcopy 0 = 2, grcopy1 = 3
runlist id 1: async ce = 1

Incorrect values
init_runlist:705  [DBG]  runlist 0 : eng bitmask 7 (eng 0, 1, 2)
init_runlist:705  [DBG]  runlist 1 : eng bitmask 8 (eng 3)

Fix
Save bitmask of active engine ids in runlist info.
Right value
init_runlist:705  [DBG]  runlist 0 : eng bitmask d (eng 0, 2, 3)
init_runlist:705  [DBG]  runlist 1 : eng bitmask 2 (eng 1)

Bug 200277163
Bug 1945121

Change-Id: Ia299aa0881c4a258080bb0daa3a542fef0d94e4f
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1584066
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2017-11-01 15:26:28 -07:00

..

nvgpu

gpu: nvgpu: save act_eng_bitmask in runlist_info

2017-11-01 15:26:28 -07:00

Makefile

nvgpu: use kernel overlay features

2017-10-29 11:00:55 -07:00