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    SubjectRe: [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:

    Yan, Zheng

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