From nobody Tue Dec 16 21:47:53 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 A19BB318133; Mon, 20 Oct 2025 12:30:11 +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=1760963411; cv=none; b=ZF6x2hFlNk0CDZUNcSCur7xnGbJgGcMeSG0awB7w6hzM8E4cfctNLl8MpgsBcLOWRojNon2p4nXR6Lu51fd4S8gBjT/PMYqr3kPBsqeZR+EYYvVUWAER5bXxpOXt+c41NVh5B8iqh+52O548rvYCQ+RQQWIvExTaGtYSChIGE0U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760963411; c=relaxed/simple; bh=vRe08IshBVZgH66zAsJxgYD+sZIV9HYsJFPIPT5JdzI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PU6wOe5Xb5Q9j6IpmI9akdTnaKgds+niEDuF0fyBN2DQfQ/WjQErng5wCCnTafrfbT5tQRojRU/YP/jd51TGv5UA68oUh0aY9wJqwr0oCiwTbziqN6sNVI9sPnuBgY1VehoywzTZt/fuyp05bvjniP3aSO5vuEcGwxUAPRYQrso= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OppaTkzb; 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="OppaTkzb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 75B37C16AAE; Mon, 20 Oct 2025 12:30:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760963411; bh=vRe08IshBVZgH66zAsJxgYD+sZIV9HYsJFPIPT5JdzI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OppaTkzbaK9k6VlRvv3ZEudUZgk4TK/G+tW6ol5mfvMzbkkUnU5L/3eGUCEiiY4pv 5b3dpqA/kn0FG+Tjqgcp51DZXvi3GRo2R0eOQ1hCtPr+gvubXkfPh8/ac8tUwc06Oz Gq8+wxx8FIKvakr4Cx3hPO3w2rl249ExtZBC9k/0JfNYOTO02VybTJ8usb8S4MDT4M teLAePD7YreTLYxIW3fL3ZGRpQtZNchiG5kfS6UWyb0VtV6HgxyuGI2SwXT/RtZ1lY MnRGIqILNOKPwucnc+d0ynQ1wtqs5sZltUcutuDOybc34f14xGmiPcYpks5zkUI7vg He+kUOe5VcCIQ== 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 1vAp1d-0000000FUu2-2a1v; Mon, 20 Oct 2025 12:30:09 +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 , Jonathan Cameron , Jinjie Ruan , Alexandru Elisei Subject: [PATCH v4 08/26] perf: arm_pmu: Convert to new IRQ affinity retrieval API Date: Mon, 20 Oct 2025 13:29:25 +0100 Message-ID: <20251020122944.3074811-9-maz@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251020122944.3074811-1-maz@kernel.org> References: <20251020122944.3074811-1-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, jonathan.cameron@huawei.com, ruanjinjie@huawei.com, alexandru.elisei@arm.com 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. Reviewed-by: Jinjie Ruan Tested-by: Will Deacon Signed-off-by: Marc Zyngier Reviewed-by: Jonathan Cameron --- 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 2.47.3