ascend inclusion
category: feature
bugzilla: NA
CVE: NA

--------------------------------

When using pmu events as nmi source, the pmu clock is disabled
under wfi/wfe mode. And the nmi can't respond periodically.
To minimize the misjudgment by wfi/wfe, we adopt a simple method
which to disable wfi/wfe at the right time and the watchdog hrtimer
is a good baseline.

The watchdog hrtimer is based on generate timer and has high freq
than nmi. If watchdog hrtimer not works we disable wfi/wfe mode
then the pmu nmi should always responds as long as the cpu core
not suspend.
Signed-off-by: NDong Kai <dongkai11@huawei.com>
Reviewed-by: NKuohai Xu <xukuohai@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>