K 10
svn:author
V 3
mav
K 8
svn:date
V 27
2020-08-07T00:40:28.537229Z
K 7
svn:log
V 469
MFC r363527: Allow swi_sched() to be called from NMI context.

For purposes of handling hardware error reported via NMIs I need a way to
escape NMI context, being too restrictive to do something significant.

To do it this change introduces new swi_sched() flag SWI_FROMNMI, making
it careful about used KPIs.  On platforms allowing IPI sending from NMI
context (x86 for now) it immediately wakes clk_intr_event via new IPI_SWI,
otherwise it works just like SWI_DELAY.

END