linux-kernel - [PATCH 0/2 v2] x86/tsc: Update tsc crystal

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Date:   Mon, 19 Sep 2016 08:51:39 -0400
From:   Prarit Bhargava <prarit@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     Prarit Bhargava <prarit@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Rafael Aquini <aquini@...hat.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Andy Lutomirski <luto@...nel.org>,
        Len Brown <len.brown@...el.com>, lenb@...nel.org
Subject: [PATCH 0/2 v2] x86/tsc: Update tsc crystal_khz whitelist

native_calibrate_tsc() contains a whitelist of models that have a known
TSC frequency that differs from the CPU frequency.  This patchset
switches the code from using magic numbers to using the defines in
asm/intel-family.h and adds new processors to the whitelist.

v2: peterz, fixed typo in patch 0002.  There was some question if the value
was supposed to be 25000 or 24000.  Experimenting on an 0x55 processor shows
that 25000 is correct.

Signed-off-by: Prarit Bhargava <prarit@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: x86@...nel.org
Cc: Rafael Aquini <aquini@...hat.com>
Cc: "Peter Zijlstra (Intel)" <peterz@...radead.org>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Len Brown <len.brown@...el.com>
Cc: lenb@...nel.org

Prarit Bhargava (2):
  x86,tsc: Use cpu id defines from intel-family.h
  x86/tsc: Add additional Intel CPU models to crystal_khz whitelist

 arch/x86/kernel/tsc.c |   14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

-- 
1.7.9.3