From: Prarit Bhargava <prarit@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: Prarit Bhargava <prarit@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, Rafael Aquini <aquini@redhat.com>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
Andy Lutomirski <luto@kernel.org>,
Len Brown <len.brown@intel.com>,
lenb@kernel.org
Subject: [PATCH 0/2 v2] x86/tsc: Update tsc crystal_khz whitelist
Date: Mon, 19 Sep 2016 08:51:39 -0400 [thread overview]
Message-ID: <1474289501-31717-1-git-send-email-prarit@redhat.com> (raw)
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@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Rafael Aquini <aquini@redhat.com>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Len Brown <len.brown@intel.com>
Cc: lenb@kernel.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
next reply other threads:[~2016-09-19 12:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-19 12:51 Prarit Bhargava [this message]
2016-09-19 12:51 ` [PATCH 1/2 v2] x86,tsc: Use cpu id defines from intel-family.h Prarit Bhargava
2016-09-19 23:06 ` [tip:x86/timers] x86/tsc: Use cpu id defines instead of hex constants tip-bot for Prarit Bhargava
2016-09-19 12:51 ` [PATCH 2/2 v2] x86/tsc: Add additional Intel CPU models to crystal_khz whitelist Prarit Bhargava
2016-09-19 23:07 ` [tip:x86/timers] x86/tsc: Add additional Intel CPU models to the crystal quirk list tip-bot for Prarit Bhargava
2016-09-28 15:00 ` [PATCH 2/2 v2] x86/tsc: Add additional Intel CPU models to crystal_khz whitelist Len Brown
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