linux-kernel - Re: [PATCH 0/3] perf/arm-cmn: Multi-DTC improvements

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Date:   Mon, 23 Oct 2023 15:39:57 +0100
From:   Will Deacon <will@...nel.org>
To:     Robin Murphy <robin.murphy@....com>
Cc:     catalin.marinas@....com, kernel-team@...roid.com,
        Will Deacon <will@...nel.org>, jeremy.linton@....com,
        mark.rutland@....com, ilkka@...amperecomputing.com,
        linux-arm-kernel@...ts.infradead.org, renyu.zj@...ux.alibaba.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] perf/arm-cmn: Multi-DTC improvements

On Fri, 20 Oct 2023 18:51:24 +0100, Robin Murphy wrote:
> On larger CMN configurations with multiple Debug & Trace Controllers,
> we've so far ignored the notion of DTC domains, mostly since they were
> not software-discoverable in the original CMN-600 design. However this
> means that if the user wants to monitor lots of individual nodes across
> the whole mesh, we end up multiplexing events which could otherwise
> happily run in parallel if we allocated DTC counters per-domain. This
> mini-series finally bites the bullet to do that.
> 
> [...]

Applied to will (for-next/perf), thanks!

[1/3] perf/arm-cmn: Fix DTC domain detection
      https://git.kernel.org/will/c/e3e73f511c49
[2/3] perf/arm-cmn: Rework DTC counters (again)
      https://git.kernel.org/will/c/7633ec2c262f
[3/3] perf/arm-cmn: Enable per-DTC counter allocation
      https://git.kernel.org/will/c/ab33c66fd8f1

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev