From: Dave Hansen <dave.hansen@intel.com>
To: Sohil Mehta <sohil.mehta@intel.com>,
x86@kernel.org, Dave Hansen <dave.hansen@linux.intel.com>,
Tony Luck <tony.luck@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Kan Liang <kan.liang@linux.intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Borislav Petkov <bp@alien8.de>, "H . Peter Anvin" <hpa@zytor.com>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Len Brown <lenb@kernel.org>, Andy Lutomirski <luto@kernel.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Fenghua Yu <fenghua.yu@intel.com>,
Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>,
Zhang Rui <rui.zhang@intel.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org,
linux-hwmon@vger.kernel.org
Subject: Re: [RFC PATCH 03/15] x86/cpu/intel: Fix init_intel() checks for extended family numbers
Date: Fri, 20 Dec 2024 15:27:41 -0800 [thread overview]
Message-ID: <54df5b3f-8b98-42b8-b3ec-3860abd5ce67@intel.com> (raw)
In-Reply-To: <20241220213711.1892696-4-sohil.mehta@intel.com>
On 12/20/24 13:36, Sohil Mehta wrote:
> X86_FEATURE_REP_GOOD is only set for family 6 processors. Extend the
> check to family numbers beyond 15.
Could you explain why, please?
> It is uncertain whether the Pentium 4s (family 15) should set the
> feature flag as well. Commit 185f3b9da24c ("x86: make intel.c have
> 64-bit support code") that originally set X86_FEATURE_REP_GOOD also set
> the x86_cache_alignment preference for family 15 processors. The
> omission of the family 15 seems intentional.
>
> Also, the 32-bit user copy alignment preference is only set for family 6
> and 15 processors. Extend the preference to family numbers beyond 15.
Can you please provide some more context so it's clear which hunk this
refers to? Alternatively, can you break this out into a separate patch?
next prev parent reply other threads:[~2024-12-20 23:27 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-20 21:36 [RFC PATCH 00/15] Prepare for new Intel family models Sohil Mehta
2024-12-20 21:36 ` [RFC PATCH 01/15] x86/apic: Fix 32-bit APIC initialization for extended Intel families Sohil Mehta
2024-12-20 23:13 ` Dave Hansen
2024-12-23 20:40 ` Sohil Mehta
2024-12-20 21:36 ` [RFC PATCH 02/15] x86/apic: Fix smp init delay " Sohil Mehta
2024-12-20 23:20 ` Dave Hansen
2024-12-23 21:55 ` Sohil Mehta
2024-12-20 21:36 ` [RFC PATCH 03/15] x86/cpu/intel: Fix init_intel() checks for extended family numbers Sohil Mehta
2024-12-20 23:27 ` Dave Hansen [this message]
2024-12-23 23:41 ` Sohil Mehta
2024-12-20 21:36 ` [RFC PATCH 04/15] cpufreq: Fix the efficient idle check for Intel extended families Sohil Mehta
2024-12-20 21:37 ` [RFC PATCH 05/15] hwmon: Fix Intel family checks to include extended family numbers Sohil Mehta
2024-12-21 17:27 ` Guenter Roeck
2024-12-23 18:13 ` Sohil Mehta
2024-12-20 21:37 ` [RFC PATCH 06/15] x86/microcode: Update the Intel processor flag scan check Sohil Mehta
2024-12-21 9:11 ` Borislav Petkov
2024-12-23 19:52 ` Sohil Mehta
2024-12-21 15:46 ` Dave Hansen
2024-12-20 21:37 ` [RFC PATCH 07/15] x86/mtrr: Modify a x86_model check to an Intel VFM check Sohil Mehta
2024-12-20 21:37 ` [RFC PATCH 08/15] x86/cpu/intel: Replace early family 6 checks with VFM ones Sohil Mehta
2024-12-21 10:35 ` David Laight
2024-12-21 15:57 ` Dave Hansen
2024-12-21 16:48 ` David Laight
2024-12-21 18:30 ` Dave Hansen
2024-12-23 20:13 ` Sohil Mehta
2024-12-20 21:37 ` [RFC PATCH 09/15] x86/cpu/intel: Replace family 15 " Sohil Mehta
2024-12-20 21:37 ` [RFC PATCH 10/15] x86/cpu/intel: Replace family 5 model " Sohil Mehta
2024-12-20 21:37 ` [RFC PATCH 11/15] x86/pat: Replace Intel " Sohil Mehta
2024-12-20 21:37 ` [RFC PATCH 12/15] x86/acpi/cstate: Improve Intel family model checks Sohil Mehta
2024-12-20 21:37 ` [RFC PATCH 13/15] x86/cpu/intel: Bound the non-architectural constant_tsc " Sohil Mehta
2024-12-20 21:37 ` [RFC PATCH 14/15] perf/x86: Simplify p6_pmu_init() Sohil Mehta
2024-12-20 21:37 ` [RFC PATCH 15/15] perf/x86/p4: Replace Pentium 4 model checks with VFM ones Sohil Mehta
2024-12-21 0:29 ` [RFC PATCH 00/15] Prepare for new Intel family models Andrew Cooper
2024-12-23 19:43 ` Sohil Mehta
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