Deepak Nibade d4030081a8
gpu: nvgpu: gk20a: add submit_lock ...
Add submit mutex lock to avoid race conditions between submitting
a job, removing a job and submitting WFI
With this lock make below operations atomic :
during submit_gpfifo() -
1. getting new syncpt
2. inserting syncpt increment
3. submitting gpfifo
4. setting job completion interrupt
during submit_wfi() -
1. getting new syncpt
2. inserting syncpt increment when idle
during channel_update() -
1. checking the submit job completion
2. freeing the job if it is completed
Bug 1305024
Change-Id: I0e3c0b8906d83fd59642344626ffdf24fad2aaab
Signed-off-by: Deepak Nibade <dnibade@nvidia.com >
Reviewed-on: http://git-master/r/397670
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com >
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d4030081a8