Messages in this thread | | | Date | Mon, 12 Jun 2017 11:20:48 -0500 | From | Kim Phillips <> | Subject | Re: [PATCH v4 0/5] Add support for the ARMv8.2 Statistical Profiling Extension |
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On Mon, 12 Jun 2017 12:08:23 +0100 Mark Rutland <mark.rutland@arm.com> wrote:
> On Mon, Jun 05, 2017 at 04:22:52PM +0100, Will Deacon wrote: > > This is the sixth posting of the patches previously posted here: > > > > rfcv1: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-January/476450.html > > rfcv2: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-January/479387.html > > v1: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-January/483684.html > > v2: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-April/499938.html > > v3: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-May/507132.html > > > > The main change since v3 is that I have reworked and fixed the CPU hotplug > > and notifier bits, in light of review comments from tglx. > > > > The architecture documentation is available here: > > > > https://developer.arm.com/products/architecture/a-profile/docs/ddi0586/latest/arm-architecture-reference-manual-supplement-statistical-profiling-extension-for-armv8-a > > Kim, do you have any version of the userspace side that we could look > at? > > For review, it would be really helpful to have something that can poke > the PMU, even if it's incomplete or lacking polish.
Here's the latest push, based on a a couple of prior versions of this driver:
http://linux-arm.org/git?p=linux-kp.git;a=shortlog;h=refs/heads/armspev0.1
I don't seem to be able to get any SPE data output after rebasing on this version of the driver. Still don't know why at the moment...
Kim
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