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=-14.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 D1945C6379D for ; Wed, 25 Nov 2020 15:44:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 71AD420BED for ; Wed, 25 Nov 2020 15:44:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="MzhLqkJ7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731177AbgKYPoZ (ORCPT ); Wed, 25 Nov 2020 10:44:25 -0500 Received: from mail.kernel.org ([198.145.29.99]:60818 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730000AbgKYPoW (ORCPT ); Wed, 25 Nov 2020 10:44:22 -0500 Received: from localhost.localdomain (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 202282087C; Wed, 25 Nov 2020 15:44:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1606319062; bh=bp+vYNl6WZ3SAbX3JYkMERucj/YM4YhziPAZI2AMKmE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MzhLqkJ7KWQ9IVB9FB3pjg0OcBHkKBMLIejryAhHo7/gbgRxv5SK+0rZyTHzjun/v /hGAT9X85sY3EWJY2+cp+bo17i2KF9RqecwaKStKPTOApvyworbtXR5MezzDlAWIq+ R1cznro9RFnghPBWEpIx02CKIixmDziiOpfn82hM= From: Will Deacon To: Sumit Garg , alexandru.elisei@arm.com Cc: catalin.marinas@arm.com, kernel-team@android.com, Will Deacon , tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, mingo@redhat.com, mark.rutland@arm.com, peterz@infradead.org, dianders@chromium.org, acme@kernel.org, swboyd@chromium.org, namhyung@kernel.org, alexander.shishkin@linux.intel.com, jolsa@redhat.com, julien.thierry.kdev@gmail.com, daniel.thompson@linaro.org Subject: Re: [PATCH v4] arm64: Enable perf events based hard lockup detector Date: Wed, 25 Nov 2020 15:44:08 +0000 Message-Id: <160631752004.2333389.970698439984795478.b4-ty@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <1602060704-10921-1-git-send-email-sumit.garg@linaro.org> References: <1602060704-10921-1-git-send-email-sumit.garg@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 7 Oct 2020 14:21:43 +0530, Sumit Garg wrote: > With the recent feature added to enable perf events to use pseudo NMIs > as interrupts on platforms which support GICv3 or later, its now been > possible to enable hard lockup detector (or NMI watchdog) on arm64 > platforms. So enable corresponding support. > > One thing to note here is that normally lockup detector is initialized > just after the early initcalls but PMU on arm64 comes up much later as > device_initcall(). So we need to re-initialize lockup detection once > PMU has been initialized. Applied to will (for-next/perf), thanks! [1/1] arm64: Enable perf events based hard lockup detector https://git.kernel.org/will/c/367c820ef080 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev