From: "Yan, Zheng" <zheng.z.yan@intel.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: mingo@elte.hu, andi@firstfloor.org, eranian@google.com,
linux-kernel@vger.kernel.org, ming.m.lin@intel.com
Subject: Re: [PATCH 2/5] perf: generic intel uncore support
Date: Tue, 03 Apr 2012 16:28:28 +0800 [thread overview]
Message-ID: <4F7AB4AC.1060108@intel.com> (raw)
In-Reply-To: <1333404693.2960.82.camel@laptop>
On 04/03/2012 06:11 AM, Peter Zijlstra wrote:
> On Sun, 2012-04-01 at 11:11 +0800, Yan, Zheng wrote:
>>
>> Because using per-cpu allocation is inconvenience for PCI uncore device.
>
> What are those, where does one read about them and why?
>
PCI uncore device support was added by patch 4. If using per-cpu pointer,
we have to setup the per-cpu pointer after the PCI driver's probe function
recognizes the uncore device. It means we have to first add the PCI uncore
device to a list, then call a function on all cpus to scan the list, find
the right uncore device and setup the per-cpu pointer.
Regards
Yan, Zheng
next prev parent reply other threads:[~2012-04-03 8:28 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-28 6:43 [RFC PATCH 0/5] perf: Intel uncore pmu counting support Yan, Zheng
2012-03-28 6:43 ` [PATCH 1/5] perf: Export perf_assign_events Yan, Zheng
2012-03-28 6:43 ` [PATCH 2/5] perf: generic intel uncore support Yan, Zheng
2012-03-28 9:24 ` Andi Kleen
2012-03-28 9:38 ` Peter Zijlstra
2012-03-28 11:24 ` Yan, Zheng
2012-03-31 3:18 ` Peter Zijlstra
2012-04-01 3:11 ` Yan, Zheng
2012-04-02 22:10 ` Peter Zijlstra
2012-04-02 22:11 ` Peter Zijlstra
2012-04-03 8:28 ` Yan, Zheng [this message]
2012-04-03 14:29 ` Peter Zijlstra
2012-04-04 1:47 ` Yan, Zheng
2012-04-10 0:48 ` Yan, Zheng
2012-04-16 12:11 ` Peter Zijlstra
2012-04-02 22:16 ` Peter Zijlstra
2012-04-02 22:24 ` Peter Zijlstra
2012-04-16 12:07 ` Peter Zijlstra
2012-04-17 6:56 ` Yan, Zheng
2012-03-28 6:43 ` [PATCH 3/5] perf: Add Nehalem and Sandy Bridge " Yan, Zheng
2012-03-28 6:43 ` [PATCH 4/5] perf: Generic pci uncore device support Yan, Zheng
2012-03-28 6:43 ` [PATCH 5/5] perf: Add Sandy Bridge-EP uncore support Yan, Zheng
2012-03-28 6:49 ` [RFC PATCH 0/5] perf: Intel uncore pmu counting support Ingo Molnar
2012-03-28 8:49 ` Peter Zijlstra
2012-03-28 9:02 ` Yan, Zheng
2012-03-28 8:57 ` Andi Kleen
2012-03-28 9:30 ` Ingo Molnar
2012-03-28 10:58 ` Peter Zijlstra
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