Re: [PATCH 0/3] SGI RTC: add clocksource/clockevent driver andtimer bios calls

From: Ingo Molnar
Date: Wed Oct 22 2008 - 02:36:48 EST

* Dimitri Sivanich <sivanich@xxxxxxx> wrote:

> The following patchset provides a driver and bios call framework for
> synchronized RTC clocksource and clockevents for SGI systems.
> With these patches, a module can be installed that registers the system-wide
> synchronized RTC clocksource and timers as both a clocksource and clockevents
> device running in high resolution mode.
> [PATCH 1/3] SGI RTC: add clocksource driver
> [PATCH 2/3] SGI RTC: add bios framework for RTC timer operations
> [PATCH 3/3] SGI RTC: add RTC system interrupt

hm, i dont really like the direction of this.

Why isnt there a native Linux driver offered for this? This isnt about
memory discovery or device discovery, where BIOS interaction might be
acceptable (and might be unavoidable). This is about hardware interfaces
and drivers, and the last thing we want there is BIOSes.

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