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From: Andi Kleen <andi@firstfloor.org>
To: "Yu\, Fenghua" <fenghua.yu@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
	H Peter Anvin <hpa@zytor.com>, "Luck\,
	Tony" <tony.luck@intel.com>, "Mallick\,
	Asit K" <asit.k.mallick@intel.com>, "Siddha\,
	Suresh B" <suresh.b.siddha@intel.com>,
	Len Brown <lenb@kernel.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	alan@lxorguk.ukuu.org.uk
Subject: Re: [PATCH 1/8] x86, apic.c: Disable irq0 if CPU enables ARAT for local apic timer
Date: Wed, 05 Oct 2011 19:43:24 -0700	[thread overview]
Message-ID: <m2ehyq4z77.fsf@firstfloor.org> (raw)
In-Reply-To: <493994B35A117E4F832F97C4719C4C040136F7CC8E@orsmsx505.amr.corp.intel.com> (Fenghua Yu's message of "Wed, 5 Oct 2011 13:11:46 -0700")

"Yu, Fenghua" <fenghua.yu@intel.com> writes:
>
> SC1200 WDT DRIVER
> M:      Zwane Mwaikambo <zwane@arm.linux.org.uk>
> S:      Maintained
> F:      drivers/watchdog/sc1200wdt.c
>
> I was hoping Zwane knows which PCI quirks depends on CPU0.

At least one AMD SIS chipset relied on IRQ0 always being on CPU0 
Not sure we got a quirk for it because the existing code handled it
(I guess it's reasonable to just blacklist for all of SIS,
i don't think they ever did anything multi-socket)
Alan may remember more.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only

  reply	other threads:[~2011-10-06  2:43 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-05 16:39 [PATCH 0/8] Online/offline BSP on x86 Fenghua Yu
2011-10-05 16:39 ` [PATCH 1/8] x86, apic.c: Disable irq0 if CPU enables ARAT for local apic timer Fenghua Yu
2011-10-05 18:47   ` Thomas Gleixner
2011-10-05 19:12     ` Yu, Fenghua
2011-10-05 19:38       ` Thomas Gleixner
2011-10-05 20:11         ` Yu, Fenghua
2011-10-06  2:43           ` Andi Kleen [this message]
2011-10-05 16:39 ` [PATCH 2/8] x86/mtrr/main.c: Ask the first online CPU to save mtrr Fenghua Yu
2011-10-05 19:03   ` Srivatsa S. Bhat
2011-10-05 16:39 ` [PATCH 3/8] x86, i387.c: thread xstate is initialized only on BSP once Fenghua Yu
2011-10-05 18:49   ` Thomas Gleixner
2011-10-05 19:53     ` Yu, Fenghua
2011-10-05 16:39 ` [PATCH 4/8] kernel/workqueue.c: unbound work queue rescuer runs on first cpu in cpumask_online_cpu Fenghua Yu
2011-10-05 18:52   ` Thomas Gleixner
2011-10-05 19:19     ` Peter Zijlstra
2011-10-05 20:00       ` Tejun Heo
2011-10-05 16:39 ` [PATCH 5/8] x86, common.c, smpboot.c: Init BSP during BSP online and don't offline BSP if irq is bound to it Fenghua Yu
2011-10-05 19:13   ` Thomas Gleixner
2011-10-05 16:39 ` [PATCH 6/8] x86, topology.c: Enable CPU0 online/offline Fenghua Yu
2011-10-05 19:20   ` Thomas Gleixner
2011-10-05 23:05     ` Yu, Fenghua
2011-11-03 22:47     ` Yu, Fenghua
2011-11-07  2:11       ` Len Brown
2011-11-07 21:02         ` Yu, Fenghua
2011-10-05 16:39 ` [PATCH 7/8] kernel/power/main.c: Not suspend/resume if CPU0 is offlined Fenghua Yu
2011-10-05 18:37   ` Srivatsa S. Bhat
2011-10-05 19:22   ` Thomas Gleixner
2011-10-05 16:39 ` [PATCH 8/8] kernel/cpu.c: Define bsp_hotpluggable variable Fenghua Yu
2011-10-05 19:25   ` Thomas Gleixner
2011-10-05 20:25     ` Yu, Fenghua
2011-10-05 21:19       ` Thomas Gleixner
2011-10-05 19:16 ` [PATCH 0/8] Online/offline BSP on x86 Peter Zijlstra
2011-10-05 19:22   ` Yu, Fenghua
2011-10-05 19:28     ` Peter Zijlstra
2011-10-05 20:29       ` Yu, Fenghua
2011-10-05 20:37         ` Peter Zijlstra

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