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Date: Tue, 10 Apr 2012 08:48:48 +0800 From: "Yan, Zheng" <zheng.z.yan@...el.com> To: Peter Zijlstra <a.p.zijlstra@...llo.nl> CC: mingo@...e.hu, andi@...stfloor.org, eranian@...gle.com, linux-kernel@...r.kernel.org, ming.m.lin@...el.com Subject: Re: [PATCH 2/5] perf: generic intel uncore support On 04/03/2012 10:29 PM, Peter Zijlstra wrote: > On Tue, 2012-04-03 at 16:28 +0800, Yan, Zheng wrote: >> 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. > > Yeah, I saw that, but it was all completely lacking in where one can > find actual detail on that stuff. What parts of the SDM do I read? Is > there anything other than the SDM, etc.. > The uncore performance monitoring guide: http://www.intel.com/content/dam/www/public/us/en/documents/design-guides/xeon-e5-2600-uncore-guide.pdf Regards Yan, Zheng -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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