From nobody Thu Oct 2 16:59:08 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 202592F3C00; Mon, 15 Sep 2025 08:57:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757926635; cv=none; b=ZZZyJTmNm5EpkxvWRZeiMyqbVVIWC2CE4mMskZtnHzTR5f5AzB+3/rS3+sp3nr1wlAKIst888MJ5vjOfE8oPd6ppTNXCb2UiZLEAcf75Vm1TyGBw4PX0WwcvLbuPR9VM//k9TFNHLxZuun8iA8EuUsT8zQeAFrWCjT0r/6kEZGU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757926635; c=relaxed/simple; bh=gHNda0QWGnywO22OHTHAtrEXJraB/koPwbnWeNVZoWY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=chwpimlQwWdIivuoZe1tcrl1vAYa0E1BpinMMHI68XhdM1Ghe0fIlp/X+/XoZnK0ZOXe2JyeX34ObdM947Y2uTEvUb1HkhJ/WQ3NmaukhGfqgHIcxKclboRr3TLptvM/MGJDOXqJ2RQG9D5pk1pTEu5N+mdFnEDjhJKo2QRUWIU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Mt8lf4DK; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Mt8lf4DK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 021D7C4CEFA; Mon, 15 Sep 2025 08:57:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1757926635; bh=gHNda0QWGnywO22OHTHAtrEXJraB/koPwbnWeNVZoWY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Mt8lf4DK5Em0WPwF/BQK2uapI4QT3/pn42dQjrg/IFg0v+jJOrd+iTrjmnAk1uMYh hqkIGL7Jo1NqFaEiaUCrfdQDBwx9dYIJ2vZRX8mNl+gGun5LLY3N3WSoNn9e6rJQET hhWTNWl11cZ+xlCq2IZK10lGzUuwu6QFi+oipOL+Vxwrrf8aJYNYP4pyhDNt1J1YBX oAuVhFdaQCFF/jLMeBSe3Da3uz8h9FNhUw3LbpSuBlHwOuMBuIH+kpY8qPZ4aaO2p6 BuWgbBiaPGmJSfwoRqNcbPCz1ftB54JKMsFYSt3mWK2rdwK/m8+AtqN8XbfmsHngPZ rc+0wNp2f8Trw== Received: from sofa.misterjones.org ([185.219.108.64] helo=valley-girl.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1uy51N-00000006IHP-0kQD; Mon, 15 Sep 2025 08:57:13 +0000 From: Marc Zyngier To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org Cc: Thomas Gleixner , Mark Rutland , Will Deacon , "Rafael J. Wysocki" , Rob Herring , Saravana Kannan , Greg Kroah-Hartman , Sven Peter , Janne Grunau , Suzuki K Poulose , James Clark Subject: [PATCH v2 08/25] perf: arm_pmu: Convert to new IRQ affinity retrieval API Date: Mon, 15 Sep 2025 09:56:45 +0100 Message-Id: <20250915085702.519996-9-maz@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20250915085702.519996-1-maz@kernel.org> References: <20250915085702.519996-1-maz@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, tglx@linutronix.de, mark.rutland@arm.com, will@kernel.org, rafael@kernel.org, robh@kernel.org, saravanak@google.com, gregkh@linuxfoundation.org, sven@kernel.org, j@jannau.net, suzuki.poulose@arm.com, james.clark@linaro.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Content-Type: text/plain; charset="utf-8" Now that the relevant interrupt controllers are equipped with a callback returning the affinity of per-CPU interrupts, switch the OF side of the ARM PMU driver over to this new method. Signed-off-by: Marc Zyngier --- drivers/perf/arm_pmu_platform.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platfor= m.c index 118170a5cedef..9c0494d8a867a 100644 --- a/drivers/perf/arm_pmu_platform.c +++ b/drivers/perf/arm_pmu_platform.c @@ -42,14 +42,13 @@ static int probe_current_pmu(struct arm_pmu *pmu, return ret; } =20 -static int pmu_parse_percpu_irq(struct arm_pmu *pmu, int irq) +static int pmu_parse_percpu_irq(struct arm_pmu *pmu, int irq, + const struct cpumask *affinity) { - int cpu, ret; struct pmu_hw_events __percpu *hw_events =3D pmu->hw_events; + int cpu; =20 - ret =3D irq_get_percpu_devid_partition(irq, &pmu->supported_cpus); - if (ret) - return ret; + cpumask_copy(&pmu->supported_cpus, affinity); =20 for_each_cpu(cpu, &pmu->supported_cpus) per_cpu(hw_events->irq, cpu) =3D irq; @@ -115,9 +114,12 @@ static int pmu_parse_irqs(struct arm_pmu *pmu) } =20 if (num_irqs =3D=3D 1) { - int irq =3D platform_get_irq(pdev, 0); + const struct cpumask *affinity; + int irq; + + irq =3D platform_get_irq_affinity(pdev, 0, &affinity); if ((irq > 0) && irq_is_percpu_devid(irq)) - return pmu_parse_percpu_irq(pmu, irq); + return pmu_parse_percpu_irq(pmu, irq, affinity); } =20 if (nr_cpu_ids !=3D 1 && !pmu_has_irq_affinity(dev->of_node)) --=20 2.39.2