Re: [PATCH v5 6/9] coresight: add support for CPU debug module

Leo Yan
2017-03-30T13:51:45Z

On Thu, Mar 30, 2017 at 10:00:30AM +0100, Suzuki K Poulose wrote:

[...]

> Leo,
>
> Also, it would be good to restore the PRCR register back to the original state
> after we read the registers (if we changed them). I am exploring ways to make
> use of this feature on demand (e.g, tie it to sysrq-t or sysrq-l) and not just
> at panic time. So it would be good to have the state restored to not affect the
> normal functioning even after dumping the registers.

Got it. Will take care for this.

Thanks,
Leo Yan

> PS: I have a small hack to hook this into a sysrq-x at runtime, but on a second thought
> it is better not to consume the key and rather tie it to something which already exist,
> as mentioned above.
>
> Thanks
> Suzuki