Re: [PATCH v2 4/6] perf/amd/iommu: Introduce data structure for tracking prev count.

From	Joerg Roedel <joro@8bytes.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2 4/6] perf/amd/iommu: Introduce data structure for tracking prev count.
Date	2016-01-07 13:30 +0100
Message-ID	<qOhRv-823-7@gated-at.bofh.it> (permalink)
References	<qMcCC-5Xq-13@gated-at.bofh.it> <qMcCD-5Xq-37@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On Fri, Jan 01, 2016 at 12:13:38PM -0600, Suravee Suthikulpanit wrote:
> To enable AMD IOMMU PMU to support multiple IOMMUs, this patch introduces
> a new data structure, perf_amd_iommu.prev_cnts, to track previous counts
> of IOMMU performance counters in multi-IOMMU environment.
> 
> Also, this patch allocates perf_iommu_cnts for internal use
> when manages counters.

From this commit message I don't really get what perf_amd_iommu.prev_cnts
and perf_iommu_cnts will be used for. Can you please add this to the
message?

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

Re: [PATCH v2 4/6] perf/amd/iommu: Introduce data structure for  tracking prev count. Joerg Roedel <joro@8bytes.org> - 2016-01-07 13:30 +0100

csiph-web