Re: [PATCH] MAINTAINERS, x86/CPU: Tony Luck will maintain asm/intel-family.h

[Thomas Gleixner <tglx@linutronix.de>]

On Thu, 15 Aug 2019, Luck, Tony wrote:
> On Thu, Aug 15, 2019 at 07:54:55PM +0200, Borislav Petkov wrote:
> @@ -11,6 +11,21 @@
>   * While adding a new CPUID for a new microarchitecture, add a new
>   * group to keep logically sorted out in chronological order. Within
>   * that group keep the CPUID for the variants sorted by model number.
> + *
> + * HOWTO Build an INTEL_FAM6_ definition:
> + * 
> + * 1. Start with INTEL_FAM6_
> + * 2. If not Core-family, add a note about it, like "ATOM".  There are only
> + *    two options for this (Xeon Phi and Atom).  It is exceedingly unlikely
> + *    that you are adding a cpu which needs a new option here.
> + * 3. Add the processor microarchitecture, not the platform name
> + * 4. Add a short differentiator if necessary.  Add an _X to differentiate
> + *    Server from Client.

We have the following existing _SHORT variants:

_G
_EP
_EX
_CORE
_ULT
_GT3E
_XEON_D
_MOBILE
_DESKTOP
_NNPI
_MID
_TABLET
_PLUS

So we should document the list of valid and usable ones and either fixup
broken ones or document that they are historic ballast and not to be used
for new ones. Otherwise you end up with the same discussions again.

Thanks,

	tglx