cvs commit: src/sys/dev/ppbus pps.c

[M. Warner Losh]

In message: <200503110703.j2B73kkP075469 at repoman.freebsd.org>
            Warner Losh <imp at FreeBSD.org> writes:
:   Make the pps interrupt register as MPSAFE and FAST.  Use a spin lock
:   to syncrhonize access to the data as a result.  This makes the pps
:   less likely to miss the 1ms pulse that I'm feeding it, but not
:   entirely reliable yet on my 133MHz P5.

A quick check shows that the pulse is 20us, not 1000us.

Warner