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Message-Id: <1178485128.31213.98.camel@localhost.localdomain>
Date: Sun, 06 May 2007 22:58:47 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
john stultz <johnstul@...ibm.com>, Ingo Molnar <mingo@...e.hu>,
Chris Wright <chrisw@...s-sol.org>,
Arjan van de Ven <arjan@...radead.org>,
Steven Rostedt <rostedt@...dmis.org>, Andi Kleen <ak@...e.de>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] x86-64 highres/dyntick support
I'm pleased to announce the first cut of the final x86_64
highres/dyntick support, which I did based on Chris Wright's patch set,
which is again based on Arjan van de Ven's initial work:
http://www.tglx.de/projects/hrtimers/2.6.21-git2-x86-64/patches-2.6.21-git2.patch.bz2
Broken out version:
http://www.tglx.de/projects/hrtimers/2.6.21-git2-x86-64/patches-2.6.21-git2.tar.bz2
It applies on top of 2.6.21-git2 and contains the following patches:
# Andi's x86_64 queue (already in -mm and pending mainline merges)
x86_64-2.6.21-git2.patch
# Outstanding fixups to highres/dyntick core and i386
# (-mm and mainline pending)
highres-dyntick-avoid-xtime-lock-contention.patch
acpi-keep-tsc-stable-when-lapic-timer-c2-ok-is-set.patch
clocksource-fix-resume-logic.patch
clockevents-fix-resume-logic.patch
# x86_64 dyntick support
x86-64-untangle-hpet-headers.patch
x86-64-drive-set-rtc-mss.patch
i386-move-pit-setup-to-i8253-h.patch
x86-64-remove-dead-code-tsc-c.patch
x86-64-convert-to-clockevents.patch
x86-64-prepare-idle-for-dyntick.patch
x86-64-enable-highres-dyntick.patch
The x86-64-convert-to-clockevents.patch is rather large, but there is no
way to do this incremental. The clockevents conversion has to be done in
one go.
The x86-64 clockevents patch set overall summary is:
22 files changed, 631 insertions(+), 1199 deletions(-)
due to sharing the code of PIT and HPET with i386.
I did not dare to tackle sharing apic.c yet, but there is definitely a
chance to get this done some day when I get bored and do a:
# mkdir arch/x86 :)
I'm going to post the x86_64 set for review to LKML once the outstanding
highres/dyntick fixups have hit mainline resp. -mm
To create a highres / dyntick enabled kernel for x86_64:
http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.tar.bz2
http://kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.21-git2.bz2
http://www.tglx.de/projects/hrtimers/2.6.21-git2-x86-64/patches-2.6.21-git2.patch.bz2
Comments, bugreports, patches are welcome as ususal
Thanks,
tglx
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