linux-kernel - Re: [PATCH v3 00/26] genirq: Add support for percpu

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Message-ID: <aNJvsJOZHD87WTx4@willie-the-truck>
Date: Tue, 23 Sep 2025 11:00:16 +0100
From: Will Deacon <will@...nel.org>
To: Marc Zyngier <maz@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-acpi@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Mark Rutland <mark.rutland@....com>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Saravana Kannan <saravanak@...gle.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Sven Peter <sven@...nel.org>, Janne Grunau <j@...nau.net>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	James Clark <james.clark@...aro.org>,
	Jonathan Cameron <jonathan.cameron@...wei.com>
Subject: Re: [PATCH v3 00/26] genirq: Add support for percpu_devid IRQ
 affinity

Hi Marc,

On Mon, Sep 22, 2025 at 09:28:07AM +0100, Marc Zyngier wrote:
> This is the third version of this series, originally posted at [1],
> which aims at allowing percpu_devid interrupt requests on the basis of
> an affinity mask. See the original submission for the details of why
> this is a desirable outcome.

FWIW, I backported this to 6.12 and tested it on a DT-based Android
device with heterogeneous PMUs and pNMI enabled. Perf appears to work
correctly, the pNMIs are configured as expected and the affinities
all look good to me.

Tested-by: Will Deacon <will@...nel.org>

Will