Files
linux-nvgpu/drivers/gpu/nvgpu
Deepak Nibade 37a15ce818 gpu: nvgpu: skip channel abort for deferred reset
In case deferred_reset_pending is set in gk20a_fifo_handle_mmu_fault() and in
gv11b_fifo_teardown_ch_tsg(), we skip resetting the engines and skip setting
the error notifier
Then we call gk20a_channel_abort()/gk20a_fifo_abort_tsg() which aborts the
channels, and resets the syncpoint values to release all the waiters

But since we don't set error notifier this could lead User to assume a
successful submission without any error

To fix this disable channel/TSG in case deferred_reset_pending is set and skip
calls to gk20a_channel_abort()/gk20a_fifo_abort_tsg()

Note that we finally abort the channel when channel is being closed

Bug 200363077

Change-Id: Ia48ca369701c14d1913d8f7b66ed466b7b840224
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1664319
(cherry picked from commit ac40d082e8)
Reviewed-on: https://git-master.nvidia.com/r/1666445
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2018-03-01 13:53:31 -08:00
..
2018-01-12 08:56:38 -08:00