From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id B6E762BE0E2; Tue, 13 May 2025 15:39:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747150751; cv=none; b=W23Dc3wK318PCU4VK6iqPgCzWD6TCT415HW07QRh1UKCyy0DvFV/53iMZEWvAoYV2p1/gyZQ+JY4gsx+H85DZtYljKZxkIrrIYcqE3BibJ6xzUK5iuwCIesn5v/EDUfKAbOAnMj6DSR08ZpiD/xOdo2HuNo3BNInkx0Iwwf3EYM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747150751; c=relaxed/simple; bh=+mvxEdljvYKFdu7xFTT6kJOMomVTUjxJexBsebQBDfY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=s3qAjxvmL85b6h52GRs9k2hifoLx3jfy2c+ZNoHCPTyNEOImuk/LycRQVnV8z1kCeG31jALTBWGBSAfqTZAfNAS/GWbOegBAvOL/iS2No4aKXtJWQRDw3XOI9UwYdFQ/FlQKEGCqZdfCTKGvjpMqALZox5Cy59fBmlbU8v2rUNE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 100571688; Tue, 13 May 2025 08:38:58 -0700 (PDT) Received: from e121345-lin.cambridge.arm.com (e121345-lin.cambridge.arm.com [10.1.196.40]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id BE8953F63F; Tue, 13 May 2025 08:39:07 -0700 (PDT) From: Robin Murphy To: will@kernel.org Cc: mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org, allen.wang@hj-micro.com, peter.du@hj-micro.com, andy.xu@hj-micro.com, stable@vger.kernel.org Subject: [PATCH 1/3] perf/arm-ni: Set initial IRQ affinity Date: Tue, 13 May 2025 16:38:58 +0100 Message-Id: <614ced9149ee8324e58930862bd82cbf46228d27.1747149165.git.robin.murphy@arm.com> X-Mailer: git-send-email 2.39.2.101.g768bb238c484.dirty In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit While we do request our IRQs with the right flags to stop their affinity changing unexpectedly, we forgot to actually set it to start with. Oops. Cc: stable@vger.kernel.org Fixes: 4d5a7680f2b4 ("perf: Add driver for Arm NI-700 interconnect PMU") Signed-off-by: Robin Murphy --- drivers/perf/arm-ni.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/perf/arm-ni.c b/drivers/perf/arm-ni.c index de7b6cce4d68..9396d243415f 100644 --- a/drivers/perf/arm-ni.c +++ b/drivers/perf/arm-ni.c @@ -544,6 +544,8 @@ static int arm_ni_init_cd(struct arm_ni *ni, struct arm_ni_node *node, u64 res_s return err; cd->cpu = cpumask_local_spread(0, dev_to_node(ni->dev)); + irq_set_affinity(cd->irq, cpumask_of(cd->cpu)); + cd->pmu = (struct pmu) { .module = THIS_MODULE, .parent = ni->dev, -- 2.39.2.101.g768bb238c484.dirty