From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23156C4332B for ; Wed, 18 Mar 2020 20:57:16 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DD20E208FE for ; Wed, 18 Mar 2020 20:57:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="obWdzyVb"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="xljifAxN" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DD20E208FE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=pgP2ofWq15AFq3J53EP9g6Do/0o7SGvIMCdd5lTKfuc=; b=obWdzyVbP9+CNe 88e+ug2LFgZ2m8XFuBfoOOgFULB8oL71JNUoDspJyWLFJr4qOi9BpOXjb0M7sP6kdP5x1CzGGkDpM iZaso7hiuJmb/DSz8vph04rNKqArIWaMt25ay9lDRTDrrgOP/98PO7suLHsXPJ83/nuNJrLSUvOC/ Vc2MOthN6VR8TQtCxAcebs+fKng0GLn2d4q9COkz44VI0KmErRDzZfdlh3kLNo+GEJzLHrik98tp6 NSaBNqHGYoNt2KrwUIbRWOno9nH5YUKGCBG12/J/ZOHe7qNnsLeJSnCokVZ12UD5FkFUxdINw4E/P KA18J1nJIv0IdQ8zeMJw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jEfkX-00012Y-5L; Wed, 18 Mar 2020 20:57:13 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jEfkU-000124-1x for linux-arm-kernel@lists.infradead.org; Wed, 18 Mar 2020 20:57:11 +0000 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9674A208E0; Wed, 18 Mar 2020 20:57:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584565029; bh=rFLv1ZfRcV+svX8JTmV+UQxowcY75lz27dYs4kS6JTk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=xljifAxNivUslQxB0dEZbzfkBmD+lKeG1i4Zu0f4ZRaU7QqI58Yeigqxo2i7lgJj3 No8I85DDU9TleHICnvT+UQMBEoeHcB/Cf6mFuyFNGH386BIT46hb59dGhDR4MXSMk6 IfsNELEx6AoL/oVqpy/sO2tX4ylZfDhlQ/aiJdiU= Date: Wed, 18 Mar 2020 20:57:05 +0000 From: Will Deacon To: Tuan Phan Subject: Re: [PATCH 1/2] perf: dsu: Allow multiple devices share same IRQ. Message-ID: <20200318205704.GC8094@willie-the-truck> References: <1584491176-31358-1-git-send-email-tuanphan@os.amperecomputing.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1584491176-31358-1-git-send-email-tuanphan@os.amperecomputing.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200318_135710_131429_E392079F X-CRM114-Status: GOOD ( 14.55 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , patches@amperecomputing.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, suzuki.poulose@arm.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org [+Suzuki, since he wrote the driver] On Tue, Mar 17, 2020 at 05:26:15PM -0700, Tuan Phan wrote: > Add IRQF_SHARED flag when register IRQ such that multiple dsu > devices can share same IRQ. > > Signed-off-by: Tuan Phan > --- > drivers/perf/arm_dsu_pmu.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c > index 70968c8..2622900 100644 > --- a/drivers/perf/arm_dsu_pmu.c > +++ b/drivers/perf/arm_dsu_pmu.c > @@ -700,7 +700,7 @@ static int dsu_pmu_device_probe(struct platform_device *pdev) > if (!name) > return -ENOMEM; > rc = devm_request_irq(&pdev->dev, irq, dsu_pmu_handle_irq, > - IRQF_NOBALANCING, name, dsu_pmu); > + IRQF_NOBALANCING | IRQF_SHARED, name, dsu_pmu); > if (rc) { > dev_warn(&pdev->dev, "Failed to request IRQ %d\n", irq); > return rc; > -- > 2.7.4 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel