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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id D1D5CC77B6E for ; Fri, 14 Apr 2023 12:43:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc: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=Zr7MqNG8AMdjXMQiQZKnuwG0b4MU5LizSS30Q/Xx0lw=; b=uxpzraTh0Q1qho NwjgrxXxAggIrDdHoAbIFGS7aTOyGzxz3CSgIQ1gqy5rmjtloG/xiT9NmKBr2pCiq5W1JXpCzMB0v C2n/RQvi25EbYwmkwLCTawhBWzZonxFspyq3UVmRRDjKUpJFc5TlnQxOUbXQya7nh0rmqU4NgQ+Pw Dj2sJNUqViYjAq+fqJe0nrBJPZoEXgHM5KHvh1SG8CCKpUW0+QEILHZm7I0d+IhNCH4PfCx0XGG4W VF4fFN829wOuP/dbrGUkq+a5VoROPXaQ5/R6Ze3DMlZqKou+V35/Ne23mHb4GdXbkYVXn7nVTkUV1 1Q3y3lX94VcXf7mNm4/Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pnIlO-009YFg-2w; Fri, 14 Apr 2023 12:42:50 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pnIlM-009YF9-0P for linux-arm-kernel@lists.infradead.org; Fri, 14 Apr 2023 12:42:49 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4E03B644DD; Fri, 14 Apr 2023 12:42:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 82D6EC433D2; Fri, 14 Apr 2023 12:42:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1681476165; bh=veX8rxjikr7K0ELmmZv5las5emvf9ZwQDdBp3M1mylI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=sgV+MHu6RBlZhoE7GcFYEPSWp54sOLzaovFtoCxHqgetaLaV/9z2O8E5mxonneJHv ABNdbkwCyO9z4uo7oz23JuomVmVDPRuttLYwyl8zOXgDI95ttBVmgXD2mKV8H089yS fWENmfFDafl23iwQlDGV8XBgtxi34KSCFwtZKzhAEqrWA83Pu/51MSnv3510bNh+z4 d9uR6aVbxO2YSEdeBPXKMEQuOc+wBJburlezYM4ll4w3Egh3DU5ePlnRjcXD2BVA8G eLJtc1l6uDZo8C59SXmcuUssG7EwdVuW0dRsezD3HZaXeC4h9DP2WmZyFByMmpwDoG 4XDXinTIvi0Qg== Date: Fri, 14 Apr 2023 13:42:40 +0100 From: Will Deacon To: Geoff Blake Cc: Robin Murphy , mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, ilkka@os.amperecomputing.com Subject: Re: [PATCH] perf/arm-cmn: Fix DTC reset Message-ID: <20230414124239.GA27611@willie-the-truck> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: 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-20230414_054248_205592_941B32DF X-CRM114-Status: GOOD ( 11.91 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Geoff, On Thu, Apr 06, 2023 at 04:25:39PM -0500, Geoff Blake wrote: > Ran this patch on an AWS C6g.metal and unfortunately still see the > spurious IRQs trigger quickly (within 10 tries) when using the following > flow: > > perf stat -a -e arm_cmn_0/event=0x5,type=0x5/ -- sleep 600 > kexec -e > > Adding in the simple shutdown routine, I have run over 100 of the > above cycles and the spurious IRQs haven't triggered. I think we still > need both for now. Does that mean you're happy for me to queue this change as-is? Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel