linux-kernel - Re: [RFC PATCH 08/15] x86/cpu/intel: Replace early family 6 checks with VFM ones

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Message-ID: <c0a686f3-a155-47c9-a298-e5dd4097543d@intel.com>
Date: Mon, 23 Dec 2024 12:13:28 -0800
From: Sohil Mehta <sohil.mehta@...el.com>
To: Dave Hansen <dave.hansen@...el.com>, David Laight
	<david.laight.linux@...il.com>
CC: <x86@...nel.org>, Dave Hansen <dave.hansen@...ux.intel.com>, Tony Luck
	<tony.luck@...el.com>, Peter Zijlstra <peterz@...radead.org>, Ingo Molnar
	<mingo@...hat.com>, Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim
	<namhyung@...nel.org>, Mark Rutland <mark.rutland@....com>, "Alexander
 Shishkin" <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>,
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>,
	"Kan Liang" <kan.liang@...ux.intel.com>, Thomas Gleixner
	<tglx@...utronix.de>, Borislav Petkov <bp@...en8.de>, "H . Peter Anvin"
	<hpa@...or.com>, "Rafael J . Wysocki" <rafael@...nel.org>, Len Brown
	<lenb@...nel.org>, Andy Lutomirski <luto@...nel.org>, Viresh Kumar
	<viresh.kumar@...aro.org>, Fenghua Yu <fenghua.yu@...el.com>, Jean Delvare
	<jdelvare@...e.com>, Guenter Roeck <linux@...ck-us.net>, Zhang Rui
	<rui.zhang@...el.com>, <linux-perf-users@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-acpi@...r.kernel.org>,
	<linux-pm@...r.kernel.org>, <linux-hwmon@...r.kernel.org>
Subject: Re: [RFC PATCH 08/15] x86/cpu/intel: Replace early family 6 checks
 with VFM ones

On 12/21/2024 7:57 AM, Dave Hansen wrote:
>> Isn't the order 'funny' as well.
>> I think it ends up being neither numeric or date order.
>> Increasing family order is probably best, but the headings for each
>> 'family' probably need to be a bit more descriptive (esp 15 - all P4
>> netburst).
> 
> <shrug>
> 
> They're already out of order because Quark is a weirdo and we didn't
> want to look at it all the time so it got stuck at the bottom. It's
> _fine_ when it's 99% family 6 plus 2 other weirdos.
> 
> But it should probably get sorted at some point because it's going to be
> hard to find Quark and P4 if the order is
> 
> 	fam 6,1
> 	fam 5
> 	fam 15
> 	fam 18
> 	fam 19
> 	fam 20
> 	...
> 
> But I think all that has to be done is to move Quark up to the top.
> 

Patch 10/15 adds a few Family 5 defines. I'll move Family 5 to the top
along with that.