Ajay Nandakumar 71b56ecaa2 platform: nvadsp: make WFI wait non-interruptible ...

Making the "WFI wait" from interruptible to non-interruptible. This is
done because there is a probalbilty between the thread making a call to
nvadsp_os_suspend / nvadsp_os_start getting signaled or having a
pending signal before ADSP enters WFI and the CPU getting the WFI
interrupt.This results in wait_for_completion_interruptible_timeout()
returning -ERESTARTSYS, due to which nvadsp_os_suspend treats it as
failure although ADSP has entered WFI and the WFI interrupt has been
received on the CCPLEX.

Since this is a race it is not seen often.

Also, reducing the timeouts for WFI and logger wait to 800 and
500 ms respectively. The timeouts have been reduced because during
suspend there are only a few register writes and logger has been
reduced from 1 MB to 16 KB.

Bug 200317530
Bug 1893324

Change-Id: I40b3894f284763c0e4cc45647e1adf2cd074d701
Signed-off-by: Ajay Nandakumar <anandakumarm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1517838
Signed-off-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1537335
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit

2023-06-20 15:13:15 +00:00

..

tegra

platform: nvadsp: make WFI wait non-interruptible

2023-06-20 15:13:15 +00:00