Date: Fri, 11 Mar 2005 00:17:17 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/ppbus pps.c Message-ID: <20050311.001717.21272926.imp@bsdimp.com> In-Reply-To: <200503110703.j2B73kkP075469@repoman.freebsd.org> References: <200503110703.j2B73kkP075469@repoman.freebsd.org>
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In message: <200503110703.j2B73kkP075469@repoman.freebsd.org>
Warner Losh <imp@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
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