freebsd-dev/sys/x86
Alexander Motin 49ed68bbf3 Add "legacy route" support to HPET driver. When enabled, this mode makes
HPET to steal IRQ0 from i8254 and IRQ8 from RTC timers. It can be suitable
for HPETs without FSB interrupts support, as it gives them two unshared
IRQs. It allows them to provide one per-CPU event timer on dual-CPU system,
that should be suitable for further tickless kernels.

To enable it, such lines may be added to /boot/loader.conf:
hint.atrtc.0.clock=0
hint.attimer.0.clock=0
hint.hpet.0.legacy_route=1
2010-06-22 19:42:27 +00:00
..
bios
cpufreq Core i5, same as previously Core2Duo, found to not set P-state for single 2010-06-19 13:09:42 +00:00
isa Add "legacy route" support to HPET driver. When enabled, this mode makes 2010-06-22 19:42:27 +00:00
x86 Implement new event timers infrastructure. It provides unified APIs for 2010-06-20 21:33:29 +00:00