[SeaBIOS] [PATCH v3] add acpi pmtimer support
kevin at koconnor.net
Thu Sep 6 01:28:23 CEST 2012
On Wed, Sep 05, 2012 at 07:28:15AM +0200, Gerd Hoffmann wrote:
> This patch makes seabios use the acpi pmtimer instead of tsc for
> timekeeping. The pmtimer has a fixed frequency and doesn't need
> calibration, thus it doesn't suffer from calibration errors due to a
> loaded host machine.
> [ v3: mask port ioport read ]
> +static u64 pmtimer_get(void)
> + u16 ioport = GET_GLOBAL(pmtimer_ioport);
> + u32 wraps = GET_LOW(pmtimer_wraps);
> + u32 pmtimer = inl(ioport);
Mask still missing?
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