linux-kernel - Re: [PATCH 0/2 V4] perf/x86/amd: IOMMU Performance Counter Support

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Message-ID: <51A92D85.9040901@amd.com>
Date:	Fri, 31 May 2013 18:08:53 -0500
From:	Suravee Suthikulanit <suravee.suthikulpanit@....com>
To:	<suravee.suthikulpanit@....com>, <joro@...tes.org>
CC:	<linux-kernel@...r.kernel.org>, <a.p.zijlstra@...llo.nl>,
	<mingo@...hat.com>, <iommu@...ts.linux-foundation.org>
Subject: Re: [PATCH 0/2 V4] perf/x86/amd: IOMMU Performance Counter Support

Jorge,

Please let me know if you have any other questions/concerns.

Thanks,

Suravee

On 5/28/2013 5:45 PM, suravee.suthikulpanit@....com wrote:
> From: Suravee Suthikulpanit <suravee.suthikulpanit@....com>
>
> These patches implement the AMD IOMMU Performance Counter functionality
> via custom perf PMU and implement static counting for various IOMMU
> translations.
>
>      1) Extend the AMD IOMMU initialization to include performance
>         counter enablement.
>
>      2) The perf AMD IOMMU PMU to manage performance counters, which
>         interface with the AMD IOMMU core driver.
>
> Steven L Kinney (1):
>    perf/x86/amd: Adding IOMMU PC resource management
>
> Suravee Suthikulpanit (1):
>    perf/x86/amd: AMD IOMMU PC PERF uncore PMU implementation
>
>   arch/x86/kernel/cpu/Makefile               |    4 +
>   arch/x86/kernel/cpu/perf_event_amd_iommu.c |  500 ++++++++++++++++++++++++++++
>   arch/x86/kernel/cpu/perf_event_amd_iommu.h |   40 +++
>   drivers/iommu/amd_iommu_init.c             |  140 +++++++-
>   drivers/iommu/amd_iommu_proto.h            |    7 +
>   drivers/iommu/amd_iommu_types.h            |   15 +-
>   6 files changed, 694 insertions(+), 12 deletions(-)
>   create mode 100644 arch/x86/kernel/cpu/perf_event_amd_iommu.c
>   create mode 100644 arch/x86/kernel/cpu/perf_event_amd_iommu.h
>


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