Sachit Kadle 108c98a7d0 gpu: nvgpu: gp10b: clear ce isr before wakeup ...

In gp10b_ce_nonstall_isr(), we trigger a semaphore wakeup.
Currently, we clear the interrupt status register after the
wakeup is complete. There is potential for an interrupt to
come in while the wake-up operation is in progress, and it
is possible that:

1) We miss processing the interrupt in that ISR iteration AND
2) We clear the interrupt status register anyways

This change clears the status register before triggering wakeup,
so the interrupt will properly re-fire.

Bug 200244458

Change-Id: Ia3338252eeea4eb60d11c0e241279989a46dac04
Signed-off-by: Sachit Kadle <skadle@nvidia.com>
Reviewed-on: http://git-master/r/1253107
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

2016-12-27 15:26:51 +05:30

..

nvgpu

gpu: nvgpu: gp10b: clear ce isr before wakeup

2016-12-27 15:26:51 +05:30