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| author | Seema Khowala <seemaj@nvidia.com> | 2017-10-23 16:27:28 -0400 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2017-11-01 18:26:28 -0400 |
| commit | 7e59e0b09b605c4082fb812fb0842537819282cf (patch) | |
| tree | 2b3e76db071626e8dcc51b14d39d5e610dacbb2c /drivers/gpu/nvgpu/pmgr/pwrdev.c | |
| parent | 5d260a24a526c35e42ed9f0bd90ba30b8dd19a60 (diff) | |
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>
Diffstat (limited to 'drivers/gpu/nvgpu/pmgr/pwrdev.c')
0 files changed, 0 insertions, 0 deletions