Sagar Kamble e0e337fb83 gpu: nvgpu: set nvgpu power state to POWERED_OFF on poweron fail ...

When force closing the app, poweron needed in channel close path will
fail as pg_task kthread creation fails with -EINTR (process is
SIGKILL'd so threads don't get created).

Upon poweron failure, device nodes are removed and the nvgpu power
state is not reset to NVGPU_STATE_POWERED_OFF. Hence on further
gk20a_busy attempts, poweron is not attempted and gpu remains
unusable from thereon.

Change the state to POWERED_OFF from POWERING_ON on poweron fail.

Bug 3308828

Change-Id: I2360f11a4937dfe93eb7933b30c13748fb570898
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2543797
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>

2021-06-15 04:58:28 -07:00

41 KiB

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