On Mon, Apr 20, 2015 at 12:15 AM, Ingo Molnar <mi...@kernel.org> wrote:
> So instead of playing games with an ancient delay, I'd suggest we > install the 10 msec INIT assertion wait as a platform quirk instead, > and activate it for all CPUs/systems that we think might need it, with > a sufficiently robust and future-proof quirk cutoff condition. > > New systems won't have the quirk active and thus won't have to have > this delay configurable either. Okay, at this time, I think the quirk would apply to: 1. Intel family 5 (original pentium) -- some may actually need the quirk 2. Intel family F (pentium4) -- mostly b/c I don't want to bother finding/testing p4 3. All AMD (happy to narrow down, if somebody can speak for AMD) I'd keep the cmdline override, in case we break something, or somebody wants to optimize/test. (Though I'll update units to usec, rather than msec., so we can go below 1ms without going to 0) I don't think we need the config option, just a #define to document the quirk. What do you think? Len Brown, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/