linux-kernel - Re: [PATCH 1/1] perf/arm-cmn: Add more bits to child node address offset field

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Message-Id: <166385340032.184614.10425827109590080389.b4-ty@kernel.org>
Date:   Thu, 22 Sep 2022 21:33:03 +0100
From:   Will Deacon <will@...nel.org>
To:     Mark Rutland <mark.rutland@....com>,
        Robin Murphy <robin.murphy@....com>,
        Ilkka Koskinen <ilkka@...amperecomputing.com>
Cc:     catalin.marinas@....com, kernel-team@...roid.com,
        Will Deacon <will@...nel.org>, patches@...erecomputing.com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/1] perf/arm-cmn: Add more bits to child node address offset field

On Mon, 8 Aug 2022 12:54:55 -0700, Ilkka Koskinen wrote:
> CMN-600 uses bits [27:0] for child node address offset while bits [30:28]
> are required to be zero.
> 
> For CMN-650, the child node address offset field has been increased
> to include bits [29:0] while leaving only bit 30 set to zero.
> 
> Let's include the missing two bits and assume older implementations
> comply with the spec and set bits [29:28] to 0.
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] perf/arm-cmn: Add more bits to child node address offset field
      https://git.kernel.org/arm64/c/05d6f6d346fe

Cheers,
-- 
Will

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