| Message ID | cover.1592892767.git.yu.c.chen@intel.com |
|---|---|
| Headers | show
Return-Path: <SRS0=QwoY=AE=vger.kernel.org=linux-pm-owner@kernel.org> 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=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=no 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 59EFFC433E0 for <linux-pm@archiver.kernel.org>; Tue, 23 Jun 2020 06:30:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3973F206B7 for <linux-pm@archiver.kernel.org>; Tue, 23 Jun 2020 06:30:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730406AbgFWGaX (ORCPT <rfc822;linux-pm@archiver.kernel.org>); Tue, 23 Jun 2020 02:30:23 -0400 Received: from mga07.intel.com ([134.134.136.100]:48920 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730395AbgFWGaX (ORCPT <rfc822;linux-pm@vger.kernel.org>); Tue, 23 Jun 2020 02:30:23 -0400 IronPort-SDR: Nu3Gc0Y9dlI+gDp4D2ADUj64OZJCbF2H1xKLNvvypAU7dw6r8X2aow+PlawkZM5Z4NMTN5Brxy pwNTHkjLVZOQ== X-IronPort-AV: E=McAfee;i="6000,8403,9660"; a="209177388" X-IronPort-AV: E=Sophos;i="5.75,270,1589266800"; d="scan'208";a="209177388" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Jun 2020 23:30:23 -0700 IronPort-SDR: XE6v9h5pzfQ/W9LnwjMZ8WxUjPUMJvdrMXd6aYsQlTxm69N1Idkzz7G9HMtW2CdtA47DTbmbTd sPhic+o+Lh4g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,270,1589266800"; d="scan'208";a="275245005" Received: from chenyu-office.sh.intel.com ([10.239.158.173]) by orsmga003.jf.intel.com with ESMTP; 22 Jun 2020 23:30:21 -0700 From: Chen Yu <yu.c.chen@intel.com> To: "Rafael J. Wysocki" <rafael@kernel.org>, Peter Zijlstra <peterz@infradead.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org>, Len Brown <len.brown@intel.com>, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Chen Yu <yu.c.chen@intel.com> Subject: [PATCH 0/2][v3] Fix IPI missing issue when woken from suspend to idle Date: Tue, 23 Jun 2020 14:31:08 +0800 Message-Id: <cover.1592892767.git.yu.c.chen@intel.com> X-Mailer: git-send-email 2.17.1 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: <linux-pm.vger.kernel.org> X-Mailing-List: linux-pm@vger.kernel.org |
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Fix IPI missing issue when woken from suspend to idle
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After an recent optimization on IPIs among idle Cores, the Goldmont failed to resume from suspend to idle due to missing IPIs. This is because Goldmont could only be woken up from idle via IPIs rather than POLLING. Clear the POLLING flag before suspend to idle so that Goldmont will always get IPIs during suspend to idle. Chen Yu (2): PM / s2idle: Clear _TIF_POLLING_NRFLAG before suspend to idle PM / s2idle: Code cleanup to make s2idle consistent with normal idle path drivers/cpuidle/cpuidle.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-)