From patchwork Mon Jan 29 10:40:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mihai Carabas X-Patchwork-Id: 193422 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7301:2087:b0:106:209c:c626 with SMTP id gs7csp512950dyb; Mon, 29 Jan 2024 03:59:25 -0800 (PST) X-Google-Smtp-Source: AGHT+IGlRypZIeJLdLIKklsQ73AoGWoVZmjrAO2uxEyAA+9iT8tiU0a9YrDVbKmA47K+VRg3SwdX X-Received: by 2002:a05:6214:230f:b0:686:ac64:62b9 with SMTP id gc15-20020a056214230f00b00686ac6462b9mr5434248qvb.104.1706529564761; Mon, 29 Jan 2024 03:59:24 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1706529564; cv=pass; d=google.com; s=arc-20160816; b=pIQT28ap4wkOcv0nwvGM7s5+H50sp7bA4jyYELzUNJIACdMaahdfXGVqXRDNXiT/Qx rXBlw1Ruiovq6CUiS1/gGgXxnpTOAJ3D2WeVY939bGy8pPvsUYKa3PsUVOlHdYjuR7pg 37Fz0IbVAZuqypUw3Mn4STxA0NK1n6nZc0kUu1FUgk/dZ1PwgRTkLaoFPXP+bYMv9IOa DB2vVN4ib+sTCJO4ZnF/Gj6m1POAosSFgOnWZenPxp1mLfmdN6UYgb5B+vDNZ75wzdc0 As7IDilcQuc7MRUbxQCRhNg1R4sEFiU/hy+evEMpgFRBLDbNuAW15EPHssQ2rxScfL8Q ulPQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-unsubscribe:list-subscribe:list-id:precedence:references :in-reply-to:message-id:date:subject:cc:to:from:dkim-signature; bh=3CBdIWj34ZRhxUcc3rj18We/Fw9vZjncSXWx3xdqX8c=; fh=cS+D6/15hJDwIQ5zbz5Bx0CwkimikQX+QlxAa68UNgo=; b=WlmxvoyJ51raNNiSyAtKCjdd9SHQsjHFwYaciJYKQU8GhwWbPaxWVf2yZ9+a7dcb1b QnoUBpwkGFHaUmqUPLYsZnRU5XXEauf2gL4QpPOtSrjVW+UjtSBEoD56n3jpPwrjLaUH Ugzh3XGOX05sT4WdGrMn8/xxV/qzYtD77e1s6Z2uXb2SlO8N6mQ+Hl5dbd5Y6hupjiQr gWB+OAKkGFsuzWXCnGVDPpPUG4U13qX1C6wp1s4R78kRbpCZPAyIfpP/rs8HSNFILyp6 Q2MW8JScSRuOO30j4r6r2MYIAzHI7fH9fFR+eTQHZ/42hkEzLNDjinobqbNIrMXqpkGO si9g== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2023-11-20 header.b=hqSVP9IZ; arc=pass (i=1 spf=pass spfdomain=oracle.com dkim=pass dkdomain=oracle.com dmarc=pass fromdomain=oracle.com); spf=pass (google.com: domain of linux-kernel+bounces-42657-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-42657-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org. [147.75.199.223]) by mx.google.com with ESMTPS id r13-20020a0562140c4d00b006818bb2684dsi7473491qvj.337.2024.01.29.03.59.24 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Jan 2024 03:59:24 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-42657-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2023-11-20 header.b=hqSVP9IZ; arc=pass (i=1 spf=pass spfdomain=oracle.com dkim=pass dkdomain=oracle.com dmarc=pass fromdomain=oracle.com); spf=pass (google.com: domain of linux-kernel+bounces-42657-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-42657-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 881891C22852 for ; Mon, 29 Jan 2024 11:59:24 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1A28E629F5; Mon, 29 Jan 2024 11:56:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="hqSVP9IZ" Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4639160895; Mon, 29 Jan 2024 11:56:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.177.32 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706529406; cv=none; b=ZEM3rju9KCMaWTNi8EUcENtCvA1JQ0t0d8CFVdqWvR2+pt77U10Kv0vfimz6piIpYiXrqfpNGEmKXIn5YQhFp8sC0uXWTdMpiMVxsU/1z9y72OtohxD3sCcoFTuCqPT+fPMhVDCsjya0su/Z5YfVeGqHZHmMpu2fRmZ8u/rOcIY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706529406; c=relaxed/simple; bh=Cx1GJ8tb4Rwe9cT5ZQ3JwMc7AvNFn8941Kx/X8gvbD8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=TFDcgkbZmcCvE5DnF0VxLBpHGsi8Ak+QHbSjS2qKWBXjVSWggvIG2Ild7REBfMWFZYReNxW8gx+CvGamClKDmm8OVCzq5tJoWVQFdeJAKJwBSCZI/i1WhoCZpTacqUsb2stuSUk8/t3B2PclUR7KNWkKYJOpuURjLQVu0eXzJ5M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oracle.com; spf=pass smtp.mailfrom=oracle.com; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b=hqSVP9IZ; arc=none smtp.client-ip=205.220.177.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oracle.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oracle.com Received: from pps.filterd (m0246630.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 40T9hsPs018230; Mon, 29 Jan 2024 11:55:57 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2023-11-20; bh=3CBdIWj34ZRhxUcc3rj18We/Fw9vZjncSXWx3xdqX8c=; b=hqSVP9IZpA55IVek6IxGZrONcsUKQGHODmUbsbu747x8cLxEx71QsVDw9BHKFYCPCzZ2 6HyS1Jzu0vTplAorSzgAcxzIqGSSw2ZrJpHFxjyuDvAzI2YebDntEttJAH13AhOAs1mZ FI7hIyUYWq8zTiB7sXMS+4o/q1jAu4OEh0/ubwKyfk51Cl97cZQA9BT/EiSc9Cu6AGuO L/FboliuBk34d08FXWenHldP/8grWKwzP7V8QuDkP/QKogHQvpNyn+k/w7/F/31ltZ10 8R3BZMABjfE8+bx3kQaxuwgcT+o4tPpYCQD2tzPwaLyK9JOZVwcGQEP87X8RBV2zgTCo LQ== Received: from iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta02.appoci.oracle.com [147.154.18.20]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3vvr8ebmp0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 29 Jan 2024 11:55:57 +0000 Received: from pps.filterd (iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 40TB2icS035421; Mon, 29 Jan 2024 11:55:56 GMT Received: from pps.reinject (localhost [127.0.0.1]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 3vvr9bhcxv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 29 Jan 2024 11:55:56 +0000 Received: from iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 40TBtniE038181; Mon, 29 Jan 2024 11:55:56 GMT Received: from mihai.localdomain (ban25x6uut25.us.oracle.com [10.153.73.25]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTP id 3vvr9bhcty-6; Mon, 29 Jan 2024 11:55:56 +0000 From: Mihai Carabas To: linux-arm-kernel@lists.infradead.org Cc: kvm@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, catalin.marinas@arm.com, will@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, pbonzini@redhat.com, wanpengli@tencent.com, vkuznets@redhat.com, rafael@kernel.org, daniel.lezcano@linaro.org, akpm@linux-foundation.org, pmladek@suse.com, peterz@infradead.org, dianders@chromium.org, npiggin@gmail.com, rick.p.edgecombe@intel.com, joao.m.martins@oracle.com, juerg.haefliger@canonical.com, mic@digikod.net, mihai.carabas@oracle.com, arnd@arndb.de, ankur.a.arora@oracle.com Subject: [PATCH v3 5/7] arm64: Define TIF_POLLING_NRFLAG Date: Mon, 29 Jan 2024 12:40:32 +0200 Message-Id: <1706524834-11275-6-git-send-email-mihai.carabas@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1706524834-11275-1-git-send-email-mihai.carabas@oracle.com> References: <1706524834-11275-1-git-send-email-mihai.carabas@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-29_06,2024-01-29_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 bulkscore=0 spamscore=0 phishscore=0 adultscore=0 mlxlogscore=865 suspectscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401290086 X-Proofpoint-ORIG-GUID: w4KDuam02VO2JcdZ0ujKc5qyJMf4Ztb4 X-Proofpoint-GUID: w4KDuam02VO2JcdZ0ujKc5qyJMf4Ztb4 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789425945320701928 X-GMAIL-MSGID: 1789425945320701928 From: Joao Martins The default idle method for arm64 is WFI and it therefore unconditionally requires the reschedule interrupt when idle. Commit 842514849a61 ("arm64: Remove TIF_POLLING_NRFLAG") had reverted it because WFI was the only idle method. ARM64 support for haltpoll means that poll_idle() polls for TIF_POLLING_NRFLAG, so define on arm64 *only if* haltpoll is built, using the same bit. Signed-off-by: Joao Martins Signed-off-by: Mihai Carabas --- arch/arm64/include/asm/thread_info.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h index 553d1bc559c6..d3010d0b2988 100644 --- a/arch/arm64/include/asm/thread_info.h +++ b/arch/arm64/include/asm/thread_info.h @@ -69,6 +69,9 @@ struct thread_info { #define TIF_SYSCALL_TRACEPOINT 10 /* syscall tracepoint for ftrace */ #define TIF_SECCOMP 11 /* syscall secure computing */ #define TIF_SYSCALL_EMU 12 /* syscall emulation active */ +#if IS_ENABLED(CONFIG_HALTPOLL_CPUIDLE) || IS_ENABLED(CONFIG_HALTPOLL_CPUIDLE_MODULE) +#define TIF_POLLING_NRFLAG 16 /* poll_idle() polls TIF_NEED_RESCHED */ +#endif #define TIF_MEMDIE 18 /* is terminating due to OOM killer */ #define TIF_FREEZE 19 #define TIF_RESTORE_SIGMASK 20 @@ -90,6 +93,9 @@ struct thread_info { #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) #define _TIF_SECCOMP (1 << TIF_SECCOMP) #define _TIF_SYSCALL_EMU (1 << TIF_SYSCALL_EMU) +#if IS_ENABLED(CONFIG_HALTPOLL_CPUIDLE) || IS_ENABLED(CONFIG_HALTPOLL_CPUIDLE_MODULE) +#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) +#endif #define _TIF_UPROBE (1 << TIF_UPROBE) #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) #define _TIF_32BIT (1 << TIF_32BIT)