Re: [PATCH v2 02/17] x86/smpboot: Fix INIT delay optimization for extended Intel Families

[Dave Hansen]

On 2/11/25 11:43, Sohil Mehta wrote:
> Currently only Family 6 is considered as modern and avoids the 10 msec
> INIT delay. The optimization doesn't extend to the upcoming Family 18/19
> models.

This doesn't quite parse correctly to me.

Let's say it this way:

	Some old crusty CPUs need an extra delay that slows down
	booting. See the comment above 'init_udelay' for details. Newer
	CPUs don't need the delay.

	Right now, for Intel, Family 6 and only Family 6 skips the
	delay. That leaves out both the Family 15 (Pentium 4s) and brand
	new Family 18/19 models.

	The omission of Family 15 (Pentium 4s) seems like an oversight
	and 18/19 do not need the delay.

	Skip the delay on all Intel processors Family 6 and beyond.

Is there anything wrong there?