cvs commit: src/sys/amd64/isa clock.c
jhb at FreeBSD.org
Mon Dec 12 16:46:26 PST 2005
On Dec 12, 2005, at 5:27 PM, Peter Wemm wrote:
> peter 2005-12-12 22:27:08 UTC
> FreeBSD src repository
> Modified files:
> sys/amd64/isa clock.c
> For the amd64 platform, we can depend on the TSC being present.
> This patch
> changes DELAY to use the TSC once it has been calibrated. This
> does NOT
> use the TSC for long-term timekeeping. It only uses it to bound
> DELAY() spinloop. This should not be affected by the Athlon64 X2
> quirks because the cpu is not halted while we use DELAY().
Are you going to merge this over to i386 as well?
John Baldwin <jhb at FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve" = http://www.FreeBSD.org
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