linux-kernel - Re: [PATCH] x86/cpu: Add CPU model numbers for Novalake

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Message-ID: <810fa3f0-8cca-451b-8bbd-b9bbabfe0b4b@intel.com>
Date: Fri, 1 Aug 2025 17:06:47 -0700
From: Sohil Mehta <sohil.mehta@...el.com>
To: Tony Luck <tony.luck@...el.com>, <x86@...nel.org>, Dave Hansen
	<dave.hansen@...ux.intel.com>, Borislav Petkov <bp@...en8.de>
CC: <linux-kernel@...r.kernel.org>, <patches@...ts.linux.dev>
Subject: Re: [PATCH] x86/cpu: Add CPU model numbers for Novalake

On 8/1/2025 9:00 AM, Tony Luck wrote:

> diff --git a/arch/x86/include/asm/intel-family.h b/arch/x86/include/asm/intel-family.h
> index 5367dcbf5b30..e345dbdf933e 100644
> --- a/arch/x86/include/asm/intel-family.h
> +++ b/arch/x86/include/asm/intel-family.h
> @@ -152,6 +152,9 @@
>  
>  #define INTEL_WILDCATLAKE_L		IFM(6, 0xD5)
>  
> +#define INTEL_NOVALAKE			IFM(18, 0x01)
> +#define INTEL_NOVALAKE_L		IFM(18, 0x03)
> +

Are we planning to add models from newer families closer to their
predecessors? I like the idea of continuing to group them by type. But,
it would inconvenience folks who are trying to find a name based on a
Family-model number. (I guess that would be a minority.)

Diamond rapids (Family 19) was added at the bottom of the file. Should
that be moved closer to its type?

Also, the /* Family 6 */ comment at the top is now misleading.

Dave had briefly suggested ordering the file based on Family, but I am
not sure if he still feels that way.

https://lore.kernel.org/lkml/40538b12-5929-4f05-b65e-8b807057abd5@intel.com/

>  /* "Small Core" Processors (Atom/E-Core) */
>  
>  #define INTEL_ATOM_BONNELL		IFM(6, 0x1C) /* Diamondville, Pineview */