From: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
To: Suravee Suthikulpanit
<Suravee.Suthikulpanit-5C7GfCeVMHo@public.gmane.org>
Cc: peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
acme-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org
Subject: Re: [PATCH v2 4/6] perf/amd/iommu: Introduce data structure for tracking prev count.
Date: Thu, 7 Jan 2016 13:27:00 +0100 [thread overview]
Message-ID: <20160107122700.GF19149@8bytes.org> (raw)
In-Reply-To: <1451672020-2150-5-git-send-email-Suravee.Suthikulpanit-5C7GfCeVMHo@public.gmane.org>
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?
next prev parent reply other threads:[~2016-01-07 12:27 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-01 18:13 [PATCH v2 0/6] perf/amd/iommu: Enable multi-IOMMU support Suravee Suthikulpanit
2016-01-01 18:13 ` [PATCH v2 3/6] iommu/amd: Introduce amd_iommu_get_num_iommus() Suravee Suthikulpanit
2016-01-07 12:15 ` Joerg Roedel
[not found] ` <20160107121550.GE19149-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2016-02-09 22:09 ` Suravee Suthikulpanit
[not found] ` <1451672020-2150-1-git-send-email-Suravee.Suthikulpanit-5C7GfCeVMHo@public.gmane.org>
2016-01-01 18:13 ` [PATCH v2 1/6] perf/amd/iommu: Consolidate and move perf_event_amd_iommu header Suravee Suthikulpanit
[not found] ` <1451672020-2150-2-git-send-email-Suravee.Suthikulpanit-5C7GfCeVMHo@public.gmane.org>
2016-01-07 12:32 ` Joerg Roedel
2016-01-01 18:13 ` [PATCH v2 2/6] perf/amd/iommu: Modify functions to query max banks and counters Suravee Suthikulpanit
[not found] ` <1451672020-2150-3-git-send-email-Suravee.Suthikulpanit-5C7GfCeVMHo@public.gmane.org>
2016-01-07 12:34 ` Joerg Roedel
[not found] ` <20160107123411.GH19149-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2016-01-07 15:28 ` Suravee Suthikulpanit
2016-01-01 18:13 ` [PATCH v2 4/6] perf/amd/iommu: Introduce data structure for tracking prev count Suravee Suthikulpanit
[not found] ` <1451672020-2150-5-git-send-email-Suravee.Suthikulpanit-5C7GfCeVMHo@public.gmane.org>
2016-01-07 12:27 ` Joerg Roedel [this message]
2016-01-01 18:13 ` [PATCH v2 5/6] perf/amd/iommu: Introduce get_iommu_bnk_cnt_evt_idx Suravee Suthikulpanit
2016-01-01 18:13 ` [PATCH v2 6/6] perf/amd/iommu: Enable support for multiple IOMMUs Suravee Suthikulpanit
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