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Seshendra Gadagottu 820d2b4a2d gpu: nvgpu: keep gpu busy during vab reserve/flush ioctls 
VAB IOCTL for reserve and flush can take more than railgate_delay(500msec).
To avoid gpu entering into railgate, set gpu busy hint during entry and set to
idle at the end of ioctl.

Bug 3468562

Change-Id: I9219e65004ad42028062ce09a315d9fde029a86c
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2643418
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
2021-12-21 12:20:48 -08:00
..
gpu
gpu: nvgpu: keep gpu busy during vab reserve/flush ioctls
2021-12-21 12:20:48 -08:00