linux-kernel - Re: [PATCH v2] arm/arm64: dts: Drop "arm,armv8-pmuv3" compatible usage

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Message-ID: <Zin4+9mv1oIAewHH@dragon>
Date: Thu, 25 Apr 2024 14:34:57 +0800
From: Shawn Guo <shawnguo2@...h.net>
To: "Rob Herring (Arm)" <robh@...nel.org>
Cc: soc@...nel.org, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Dinh Nguyen <dinguyen@...nel.org>,
	Tsahee Zidenberg <tsahee@...apurnalabs.com>,
	Antoine Tenart <atenart@...nel.org>,
	Khuong Dinh <khuong@...amperecomputing.com>,
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	Sudeep Holla <sudeep.holla@....com>,
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	Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>,
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	Li Yang <leoyang.li@....com>, Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
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	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
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	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Andreas Färber <afaerber@...e.de>,
	Heiko Stuebner <heiko@...ech.de>, Orson Zhai <orsonzhai@...il.com>,
	Baolin Wang <baolin.wang@...ux.alibaba.com>,
	Chunyan Zhang <zhang.lyra@...il.com>,
	Jisheng Zhang <jszhang@...nel.org>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	Michal Simek <michal.simek@....com>, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev
Subject: Re: [PATCH v2] arm/arm64: dts: Drop "arm,armv8-pmuv3" compatible
 usage

On Wed, Apr 17, 2024 at 03:38:47PM -0500, Rob Herring (Arm) wrote:
> The "arm,armv8-pmuv3" compatible is intended only for s/w models. Primarily,
> it doesn't provide any detail on uarch specific events.
> 
> There's still remaining cases for CPUs without any corresponding PMU
> definition and for big.LITTLE systems which only have a single PMU node
> (there should be one per core type).
> 
> Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> Acked-by: Sudeep Holla <sudeep.holla@....com>
> Acked-by: Dinh Nguyen <dinguyen@...nel.org>
> Acked-by: Heiko Stuebner <heiko@...ech.de>
> Reviewed-by: Jisheng Zhang <jszhang@...nel.org>
> Acked-by: Bjorn Andersson <andersson@...nel.org>
> Acked-by: Florian Fainelli <florian.fainelli@...adcom.com>
> Acked-by: Alim Akhtar <alim.akhtar@...sung.com>
> ---
> SoC Maintainers, Can you please apply this directly.
> 
> v2:
>  - Drop QCom sdm630 change
> ---
..
>  arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi       | 2 +-
>  arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi       | 2 +-
>  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi       | 7 +++++++
>  arch/arm64/boot/dts/freescale/fsl-ls2088a.dtsi       | 7 +++++++
>  arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi       | 5 -----
>  arch/arm64/boot/dts/freescale/imx8dxl.dtsi           | 2 +-

Acked-by: Shawn Guo <shawnguo@...nel.org>