https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240475
Ed Maste changed:
What|Removed |Added
CC||ema...@freebsd.org
Status|N
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240475
--- Comment #10 from Neel Chauhan ---
Thanks for merging this into CURRENT!
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--- Comment #9 from commit-h...@freebsd.org ---
A commit references this bug:
Author: kib
Date: Wed Sep 25 13:36:56 UTC 2019
New revision: 352684
URL: https://svnweb.freebsd.org/changeset/base/352684
Log:
x86: Fall back to leaf 0x16 if T
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240475
--- Comment #8 from Konstantin Belousov ---
https://reviews.freebsd.org/D21777
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--- Comment #7 from Neel Chauhan ---
It's true that Linux does this (lines 660-661):
crystal_khz = eax_base_mhz * 1000 *
eax_denominator / ebx_numerator;
But in the same function, Linux returns this (line 674):
return cry
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--- Comment #6 from Konstantin Belousov ---
Your patch is still not equivalent to what Linux did. Note that they still
apply the nom/denom coefficient reported from leaf 0x15, but take adjusted mhz
from 0x16, instead of zero hz from 0x15.
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240475
--- Comment #4 from Neel Chauhan ---
Created attachment 207426
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=207426&action=edit
dmesg log on the Spectre x360 without any patches (LiveUSB)
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--- Comment #5 from Neel Chauhan ---
Created attachment 207427
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=207427&action=edit
dmesg log on the Spectre x360 with the Bug 240475 patch (Main System)
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--- Comment #3 from Neel Chauhan ---
This patch is based upon an existing Linux commit:
https://github.com/torvalds/linux/commit/604dc9170f2435d27da5039a3efd757dceadc684
In the commit message:
Skylake, Kabylake and all variants of tho
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Konstantin Belousov changed:
What|Removed |Added
CC||k...@freebsd.org
--- Comment
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240475
--- Comment #1 from Neel Chauhan ---
Fixed description:
If frequency for CPUID 0x15 is zero, fall back to CPUID 0x16 for the TSC clock
if available. This is needed on some Intel SOCs like Skylake and Kaby Lake
which report 0 for the crysta
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240475
Mark Linimon changed:
What|Removed |Added
Keywords||patch
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Bug ID: 240475
Summary: [PATCH]: Add support for CPUID 0x16 in
tsc_freq_cpuid() (TSC clock)
Product: Base System
Version: CURRENT
Hardware: Any
OS: An
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