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=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 322D0C32751 for ; Wed, 31 Jul 2019 17:22:46 +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 0615220679 for ; Wed, 31 Jul 2019 17:22:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="L6aueFB8" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0615220679 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com 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=KjezJCWGqDbK9ChWBXf0IqRan+DPHTVAHeizq8zXhY4=; b=L6aueFB8PfyHon EJ/2iLLcUbChjWgv8tlppmIMCwfHpRyxMXlvF8w7vZ+NjYfBtSWrMMIMeWDoL0m88n62N6hxBw2PE YhaXwQOunn+7kNgZ2DchGF9Jj/JNrD0qzyzKEE3ul4By3W3vBRYiOwjGhvxtKTjvTj03iVC0KR91f J4TrKS/dAsc3bTrHcSG5kS7rZEtUr2Q/wXEvXkpy+NXd6Y90D8Wx8SARkLWoiAiYnshurfCLCFhpY oEI9YLG7NQM851o6joNMvNaEkr1C0UxZG5nC8kDaRLGyZZEqa8Bbijwhaq/jZx1QE+xg7F22VG0T5 GC/mxpLwNsUHCqczC97w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hssJJ-00075a-6B; Wed, 31 Jul 2019 17:22:45 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hssJG-00075C-2X for linux-arm-kernel@lists.infradead.org; Wed, 31 Jul 2019 17:22:43 +0000 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 7BF29337; Wed, 31 Jul 2019 10:22:41 -0700 (PDT) Received: from arrakis.emea.arm.com (arrakis.cambridge.arm.com [10.1.196.78]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 93A143F71F; Wed, 31 Jul 2019 10:22:40 -0700 (PDT) Date: Wed, 31 Jul 2019 18:22:38 +0100 From: Catalin Marinas To: Julien Thierry Subject: Re: [PATCH] arm64: Lower priority mask for GIC_PRIO_IRQON Message-ID: <20190731172238.GG17773@arrakis.emea.arm.com> References: <1564412266-9790-1-git-send-email-julien.thierry.kdev@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1564412266-9790-1-git-send-email-julien.thierry.kdev@gmail.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-20190731_102242_165121_09FA007A X-CRM114-Status: GOOD ( 10.96 ) 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: Marc Zyngier , Will Deacon , Oleg Nesterov , linux-arm-kernel@lists.infradead.org, julien.thierry@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 On Mon, Jul 29, 2019 at 03:57:46PM +0100, Julien Thierry wrote: > On a system with two security states, if SCR_EL3.FIQ is set, non-secure > IRQ priorities get shifted to fit the secure view but priority masks > aren't. > > On such system, it turns out that GIC_PRIO_IRQON masks the priority of > normal interrupts, which obviously ends up in a hang. > > Increase GIC_PRIO_IRQON value (i.e. lower priority) to make sure > interrupts are not blocked by it. > > Fixes: bd82d4bd21880b7c ("arm64: Fix incorrect irqflag restore for > priority masking") > Signed-off-by: Julien Thierry > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Oleg Nesterov > Cc: Marc Zyngier I queued this through the arm64 for-next/fixes tree. Thanks. -- Catalin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel