From patchwork Wed Aug 9 11:39:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mihai Carabas X-Patchwork-Id: 13347925 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 189E4C0015E for ; Wed, 9 Aug 2023 12:53:45 +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:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Vz52BPJfVl/c2SkjIQpVVKOAzaSEIaIrZVNDtQ0QCa8=; b=RWoaPWGJsfsi/x fsnchUa1EdpRUDLFnAutE/r7xK3UGJ5k8bFQE9ASqJYgrZCmCxGhvRkqs1wcYY+Y4LdKEbmzO73BQ NnRxnuRvcpn8nNv0dXOi2ugQZ5TC5arR2dmjbUuyhJCdbjqZqd8KP2jWjyYXsAIAp509dpfFqGv1y 9FL9BASC81RcgBmlz8E/V2Vio5axZwtsW+SUhVYA2isWs6SLyyYLp7iw2SZmPieYHXDsjiKMhQ6VB JrTk/aokwuXbBEcDAoJVcBDvQ+X02NaUJ1UR3Yao3l35GNOMrkIw9UC/xtikA+pgmHzGd1Q5kbWP/ nMXPIr9lF8wV53jZWxCQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qTige-004vf8-0p; Wed, 09 Aug 2023 12:53:16 +0000 Received: from mx0b-00069f02.pphosted.com ([205.220.177.32]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qTigT-004vbz-17 for linux-arm-kernel@lists.infradead.org; Wed, 09 Aug 2023 12:53:07 +0000 Received: from pps.filterd (m0246632.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 379Cpatv031355; Wed, 9 Aug 2023 12:52:29 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-2023-03-30; bh=0QZsX2jbO6id/iaRRnv0TmxxvvP8rcGnUdjnrbggVeE=; b=EHPw1hrrhg1yTQEwYhDBLlnh0EFQdIXvnIdONYKFcH9mYEL+H58uVVEOZmnLxlgW2WiL KYhi4J0qi1VbdPagCMKL8BXbli2efIWvj55uO62+moCIcT7oJRGQSytHMV71FYB8Rp9k XWN+ppHZw6i1S9MtN5By2iGfrY/tZX0iBDcur+hS28ldrouHJdsw4BcLNavlyo27aJOs kQPMQfXBxtEbvpKLELqcsuqSRIIA4RIWE7nWPiw5GB38ce1dFJGXb45E7IryGV937wIv rYywDyGInS8ZTAYIaEzTigl80IezjPngwcTeDwInoY6oUzlAy9W4gLiiWks4/yHhUCS5 /g== Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.appoci.oracle.com [138.1.37.129]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3s9e1u8gup-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Aug 2023 12:52:29 +0000 Received: from pps.filterd (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 379C0l5O021712; Wed, 9 Aug 2023 12:52:28 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3s9cvdyfg1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Aug 2023 12:52:28 +0000 Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 379CqCGF027258; Wed, 9 Aug 2023 12:52:27 GMT Received: from mihai.localdomain (ban25x6uut25.us.oracle.com [10.153.73.25]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 3s9cvdyf90-2; Wed, 09 Aug 2023 12:52:27 +0000 From: Mihai Carabas To: Cc: Joao Martins , Mihai Carabas , Catalin Marinas , Will Deacon , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Paolo Bonzini , Wanpeng Li , Vitaly Kuznetsov , "Rafael J. Wysocki" , Daniel Lezcano , Andrew Morton , Kees Cook , Peter Zijlstra , Petr Mladek , Ard Biesheuvel , Sami Tolvanen , Nicholas Piggin , Juerg Haefliger , =?utf-8?q?Micka=C3=ABl_Sal?= =?utf-8?q?a=C3=BCn?= , Arnd Bergmann , Ankur Arora , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 1/7] cpuidle-haltpoll: Make boot_option_idle_override check X86 specific Date: Wed, 9 Aug 2023 14:39:35 +0300 Message-Id: <1691581193-8416-2-git-send-email-mihai.carabas@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> References: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-09_10,2023-08-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 malwarescore=0 spamscore=0 adultscore=0 mlxlogscore=999 bulkscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308090113 X-Proofpoint-GUID: 12Ohs6U9gYefr7PsRh_c7KrFj31d0E8M X-Proofpoint-ORIG-GUID: 12Ohs6U9gYefr7PsRh_c7KrFj31d0E8M X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230809_055305_497904_555B7DF6 X-CRM114-Status: GOOD ( 17.78 ) 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: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Joao Martins In the pursuit of letting it build on ARM let's not include what is x86 specific. Signed-off-by: Joao Martins Signed-off-by: Mihai Carabas --- drivers/cpuidle/cpuidle-haltpoll.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/cpuidle/cpuidle-haltpoll.c b/drivers/cpuidle/cpuidle-haltpoll.c index e66df22f9695..0ca3c8422eb6 100644 --- a/drivers/cpuidle/cpuidle-haltpoll.c +++ b/drivers/cpuidle/cpuidle-haltpoll.c @@ -104,9 +104,11 @@ static int __init haltpoll_init(void) int ret; struct cpuidle_driver *drv = &haltpoll_driver; +#ifdef CONFIG_X86 /* Do not load haltpoll if idle= is passed */ if (boot_option_idle_override != IDLE_NO_OVERRIDE) return -ENODEV; +#endif if (!kvm_para_available() || !haltpoll_want()) return -ENODEV; From patchwork Wed Aug 9 11:39:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mihai Carabas X-Patchwork-Id: 13347924 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 685B9C04A6A for ; Wed, 9 Aug 2023 12:53:36 +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:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=D35kmvc30O9/v7WFYeotYFF9i4/+LiM49QKRdn8G10c=; b=D1H/+lMN5RDKo9 OeCv+mAjFMAE0dbH1iOTUs3/9IodLv9c3W9LhXCkH4mLbUeG4fmTg04tHyTZslYyGr6F4/emyJF0N XErX12s1uVc7MhKayLXzEHHslOllrd8UIsN+Imaj+RUNdXVw2dHSMk04AojDzOfBqZ0zYdIHMUpAy Z8CC1OZlUtq2DISD7HevPDdZk7kSJSFC9RPBck/RynsfPPFDo1zloUFE7tSKYLfQ/rXVlBpO2pO8L Kzh1EcfV/NHuZv3fU4MHwfhvg1n3nPEmHgIURontHEpTBPALhiRPLMxEn9xQM0O01RbO64cDWbgzN cVkiDpbMdkxc7uXl6pZw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qTigW-004vd3-0B; Wed, 09 Aug 2023 12:53:08 +0000 Received: from mx0b-00069f02.pphosted.com ([205.220.177.32]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qTigT-004vbx-14 for linux-arm-kernel@lists.infradead.org; Wed, 09 Aug 2023 12:53:06 +0000 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 379CqAuO005726; Wed, 9 Aug 2023 12:52:44 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-2023-03-30; bh=YyWezMMwGxKKB/jHDRJjdl65qr6ALhU6yWW29edlye8=; b=bmegIjY8aMPlI4TWlQ/gNw8pjim7vrfWelPOfnM2t+JThbO6nJTLoKR0g8SCs3qV1slJ 1odS4WeNNznC/+PMRYtr+PKFc3HGlUVguNEaHs3qjfYcnfq1OHU5wCLzjb33/tz8GyXj pUNQw11w6jrpduEEF8xucDO5fx0iVH/TPFvaK/El7whNOBRoRhv4VKFXYAFfDzKogLs+ BrzNj9FLiUI7+iurRsTJC9EmazJO08l8DJGTFLeK3zFyKtu/A7aBbX1Zew9wmZfu+Q2L BTsZ8REi7SfemKhjSJFDrqfJ9nvdnJXLnuzZ626Eg9V8YMZFMPDMwWDtd2BeHXNBpYqy yw== Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.appoci.oracle.com [138.1.37.129]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3s9cuerfv4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Aug 2023 12:52:44 +0000 Received: from pps.filterd (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 379BXdcG021556; Wed, 9 Aug 2023 12:52:43 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3s9cvdyfp8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Aug 2023 12:52:43 +0000 Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 379CqCGH027258; Wed, 9 Aug 2023 12:52:42 GMT Received: from mihai.localdomain (ban25x6uut25.us.oracle.com [10.153.73.25]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 3s9cvdyf90-3; Wed, 09 Aug 2023 12:52:42 +0000 From: Mihai Carabas To: Cc: Joao Martins , Mihai Carabas , Catalin Marinas , Will Deacon , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Paolo Bonzini , Wanpeng Li , Vitaly Kuznetsov , "Rafael J. Wysocki" , Daniel Lezcano , Andrew Morton , Kees Cook , Peter Zijlstra , Petr Mladek , Ard Biesheuvel , Sami Tolvanen , Nicholas Piggin , Juerg Haefliger , =?utf-8?q?Micka=C3=ABl_Sal?= =?utf-8?q?a=C3=BCn?= , Arnd Bergmann , Ankur Arora , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 2/7] x86: Move ARCH_HAS_CPU_RELAX to arch Date: Wed, 9 Aug 2023 14:39:36 +0300 Message-Id: <1691581193-8416-3-git-send-email-mihai.carabas@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> References: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-09_10,2023-08-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 malwarescore=0 spamscore=0 adultscore=0 mlxlogscore=999 bulkscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308090113 X-Proofpoint-ORIG-GUID: xjNwmyV8x9M_ei9YNJqnuMKodw6deQN5 X-Proofpoint-GUID: xjNwmyV8x9M_ei9YNJqnuMKodw6deQN5 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230809_055305_485863_A2D18FB5 X-CRM114-Status: GOOD ( 17.63 ) 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: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Joao Martins ARM64 is going to use it for haltpoll support (for poll-state) so move the definition to be arch-agnostic and allow architectures to override it. Signed-off-by: Joao Martins Signed-off-by: Mihai Carabas --- arch/Kconfig | 3 +++ arch/x86/Kconfig | 1 + 2 files changed, 4 insertions(+) diff --git a/arch/Kconfig b/arch/Kconfig index aff2746c8af2..31bd138f406d 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -1371,6 +1371,9 @@ config RELR config ARCH_HAS_MEM_ENCRYPT bool +config ARCH_HAS_CPU_RELAX + bool + config ARCH_HAS_CC_PLATFORM bool diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 7422db409770..2eab3be6abbb 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -72,6 +72,7 @@ config X86 select ARCH_HAS_CACHE_LINE_SIZE select ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION select ARCH_HAS_CPU_FINALIZE_INIT + select ARCH_HAS_CPU_RELAX select ARCH_HAS_CURRENT_STACK_POINTER select ARCH_HAS_DEBUG_VIRTUAL select ARCH_HAS_DEBUG_VM_PGTABLE if !X86_PAE From patchwork Wed Aug 9 11:39:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mihai Carabas X-Patchwork-Id: 13347926 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 9EBB6EB64DD for ; Wed, 9 Aug 2023 12:53:50 +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:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=pS9XqY8U1cqRkDb6YnlhnAp8K8OpC+wCjqWlYscLR9k=; b=XzJNkgIqV54PzK xqYpXOItCLsXSw+dtl8xK5WobK2I5KOXLLp0TrMDcC17Iz9/T5hp4I1K+YU0lnPhOcO50r6VoPJQH 7wXnd/OnbHt3OwiH5//yqVIXw+zEzoertieLKbH2O2AMPuUWZXIt/rcgmg1kmCsckjiOm651hFmE8 YIIZ5kvkyhCEIrlBmT9l7qouar+yDjldMhPzoY0Sw8VFN8txS93qZTE1WQ+vUTPX92a+f1g3kb6F6 2hgQAyKWcHBOSUTLsjfTstnl9vMVPB7c6MUN38X+UuuIskZAQ+e6br++pitQdtHmn4yGHEfisOKIB rhMELxcSfLNlq3P4H92A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qTigl-004vhJ-1t; Wed, 09 Aug 2023 12:53:23 +0000 Received: from mx0b-00069f02.pphosted.com ([205.220.177.32]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qTigi-004vgG-1m for linux-arm-kernel@lists.infradead.org; Wed, 09 Aug 2023 12:53:21 +0000 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 379CqBJ3005733; Wed, 9 Aug 2023 12:52:59 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-2023-03-30; bh=4x+zE4hQtUzx7DvsxU62TsC9MtAa7FotAn6Rbv4QSws=; b=s8vkesQltMGztBt8U/Sn8oCyOJoaMWgkXjG0sdvIljOLPU+A90hZgOGa0RGeQ0gsWG/u henwl5geffvsUq3Gz1gOpYYXuS+l+qPn/q/T8CwJ93S5ALoTV1boT8Mcc/Yvi5hvdk5/ ERNgVPpCfFOpQJeXI9q1v7xo/9MHaZxFStAatnpa2344tObkh9CsezfwhB8DpuJcRnvs J7X23Z4OUeEJ3Mvaf63dqgc+yLYw3CAX10nKY9YsBD5pCudZmyZLvIJ2xaKjc0ccGu/N 7NKY+ZK8zzMU5fI79j5uYZ/RJiKjVDhXEtRdENi32/xqMFNYZDDgb7LI4DJLs8wSY4QV Og== Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.appoci.oracle.com [138.1.37.129]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3s9cuerfvm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Aug 2023 12:52:59 +0000 Received: from pps.filterd (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 379BXdcP021556; Wed, 9 Aug 2023 12:52:58 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3s9cvdyfvn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Aug 2023 12:52:58 +0000 Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 379CqCGJ027258; Wed, 9 Aug 2023 12:52:57 GMT Received: from mihai.localdomain (ban25x6uut25.us.oracle.com [10.153.73.25]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 3s9cvdyf90-4; Wed, 09 Aug 2023 12:52:57 +0000 From: Mihai Carabas To: Cc: Joao Martins , Ankur Arora , Mihai Carabas , Catalin Marinas , Will Deacon , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Paolo Bonzini , Wanpeng Li , Vitaly Kuznetsov , "Rafael J. Wysocki" , Daniel Lezcano , Andrew Morton , Kees Cook , Peter Zijlstra , Petr Mladek , Ard Biesheuvel , Sami Tolvanen , Nicholas Piggin , Juerg Haefliger , =?utf-8?q?Micka=C3=ABl_Sal?= =?utf-8?q?a=C3=BCn?= , Arnd Bergmann , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 3/7] x86/kvm: Move haltpoll_want() to be arch defined Date: Wed, 9 Aug 2023 14:39:37 +0300 Message-Id: <1691581193-8416-4-git-send-email-mihai.carabas@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> References: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-09_10,2023-08-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 malwarescore=0 spamscore=0 adultscore=0 mlxlogscore=950 bulkscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308090113 X-Proofpoint-ORIG-GUID: Iz4AGH0IRJb3G1PZ_b520EPEYVR2M_ZH X-Proofpoint-GUID: Iz4AGH0IRJb3G1PZ_b520EPEYVR2M_ZH X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230809_055320_703597_E8372AE9 X-CRM114-Status: GOOD ( 20.21 ) 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: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Joao Martins Right now, kvm_para_has_hint(KVM_HINTS_REALTIME) is x86 only, and so in the pursuit of making cpuidle-haltpoll arch independent, move the check for haltpoll enablement to be defined per architecture. To that end, add a arch_haltpoll_want() and move the check there. Signed-off-by: Joao Martins Signed-off-by: Ankur Arora Signed-off-by: Mihai Carabas --- arch/x86/include/asm/cpuidle_haltpoll.h | 1 + arch/x86/kernel/kvm.c | 6 ++++++ drivers/cpuidle/cpuidle-haltpoll.c | 4 ++-- include/linux/cpuidle_haltpoll.h | 5 +++++ 4 files changed, 14 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/cpuidle_haltpoll.h b/arch/x86/include/asm/cpuidle_haltpoll.h index c8b39c6716ff..2c5a53ce266f 100644 --- a/arch/x86/include/asm/cpuidle_haltpoll.h +++ b/arch/x86/include/asm/cpuidle_haltpoll.h @@ -4,5 +4,6 @@ void arch_haltpoll_enable(unsigned int cpu); void arch_haltpoll_disable(unsigned int cpu); +bool arch_haltpoll_want(void); #endif diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 1cceac5984da..817594cbda11 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -1151,4 +1151,10 @@ void arch_haltpoll_disable(unsigned int cpu) smp_call_function_single(cpu, kvm_enable_host_haltpoll, NULL, 1); } EXPORT_SYMBOL_GPL(arch_haltpoll_disable); + +bool arch_haltpoll_want(void) +{ + return kvm_para_has_hint(KVM_HINTS_REALTIME); +} +EXPORT_SYMBOL_GPL(arch_haltpoll_want); #endif diff --git a/drivers/cpuidle/cpuidle-haltpoll.c b/drivers/cpuidle/cpuidle-haltpoll.c index 0ca3c8422eb6..e2d4d78744ae 100644 --- a/drivers/cpuidle/cpuidle-haltpoll.c +++ b/drivers/cpuidle/cpuidle-haltpoll.c @@ -96,7 +96,7 @@ static void haltpoll_uninit(void) static bool haltpoll_want(void) { - return kvm_para_has_hint(KVM_HINTS_REALTIME) || force; + return (kvm_para_available() && arch_haltpoll_want()) || force; } static int __init haltpoll_init(void) @@ -110,7 +110,7 @@ static int __init haltpoll_init(void) return -ENODEV; #endif - if (!kvm_para_available() || !haltpoll_want()) + if (!haltpoll_want()) return -ENODEV; cpuidle_poll_state_init(drv); diff --git a/include/linux/cpuidle_haltpoll.h b/include/linux/cpuidle_haltpoll.h index d50c1e0411a2..bae68a6603e3 100644 --- a/include/linux/cpuidle_haltpoll.h +++ b/include/linux/cpuidle_haltpoll.h @@ -12,5 +12,10 @@ static inline void arch_haltpoll_enable(unsigned int cpu) static inline void arch_haltpoll_disable(unsigned int cpu) { } + +static inline bool arch_haltpoll_want(void) +{ + return false; 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Wed, 9 Aug 2023 12:53:46 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3s9cvdygp9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Aug 2023 12:53:46 +0000 Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 379CqCGL027258; Wed, 9 Aug 2023 12:53:45 GMT Received: from mihai.localdomain (ban25x6uut25.us.oracle.com [10.153.73.25]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 3s9cvdyf90-5; Wed, 09 Aug 2023 12:53:45 +0000 From: Mihai Carabas To: Cc: Joao Martins , Mihai Carabas , Catalin Marinas , Will Deacon , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Paolo Bonzini , Wanpeng Li , Vitaly Kuznetsov , "Rafael J. Wysocki" , Daniel Lezcano , Andrew Morton , Kees Cook , Peter Zijlstra , Petr Mladek , Ard Biesheuvel , Sami Tolvanen , Nicholas Piggin , Juerg Haefliger , =?utf-8?q?Micka=C3=ABl_Sal?= =?utf-8?q?a=C3=BCn?= , Arnd Bergmann , Ankur Arora , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 4/7] governors/haltpoll: Drop kvm_para_available() check Date: Wed, 9 Aug 2023 14:39:38 +0300 Message-Id: <1691581193-8416-5-git-send-email-mihai.carabas@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> References: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-09_10,2023-08-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 malwarescore=0 spamscore=0 adultscore=0 mlxlogscore=999 bulkscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308090114 X-Proofpoint-GUID: JNuNSRW3VUw9SQHkXuGjtM0f2OfpL4K8 X-Proofpoint-ORIG-GUID: JNuNSRW3VUw9SQHkXuGjtM0f2OfpL4K8 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230809_055408_902838_F7DC577D X-CRM114-Status: GOOD ( 19.55 ) 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: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Joao Martins This is duplicated already in the haltpoll idle driver, and there's no need to re-check KVM guest availability in the governor. Either guests uses the module which explicitly selects this governor, and given that it has the lowest rating of all governors (menu=20,teo=19,ladder=10/25,haltpoll=9) means that unless it's the only one compiled in, it won't be selected. Dropping such check also allows to test haltpoll in baremetal. Signed-off-by: Joao Martins Signed-off-by: Mihai Carabas Acked-by: Rafael J. Wysocki --- drivers/cpuidle/governors/haltpoll.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/cpuidle/governors/haltpoll.c b/drivers/cpuidle/governors/haltpoll.c index 1dff3a52917d..c9b69651d377 100644 --- a/drivers/cpuidle/governors/haltpoll.c +++ b/drivers/cpuidle/governors/haltpoll.c @@ -143,10 +143,7 @@ static int haltpoll_enable_device(struct cpuidle_driver *drv, static int __init init_haltpoll(void) { - if (kvm_para_available()) - return cpuidle_register_governor(&haltpoll_governor); - - return 0; + return cpuidle_register_governor(&haltpoll_governor); } postcore_initcall(init_haltpoll); From patchwork Wed Aug 9 11:39:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mihai Carabas X-Patchwork-Id: 13347929 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 27A31C04A6A for ; Wed, 9 Aug 2023 12:55:06 +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:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Y+PwG2L0W+eJC6T9XKIZhI9HwN24XXjAlw4TSd66MOI=; b=dbk+/BMbyyGyyz 8fjwLFYw0MXIvpBA9s8bxNv3LLOjXWC8+2AOZigiB7L2O3dp4p0AMoARIL2j4fCwn/78FMz3FDKPa nDyQabuTV1JF/s5KUTJ9OpYXnYJJ2Cln/ZRyBQ34kD38RbMiAgxH65jn/jV0/RFQ0yiiXeSu4UU/z Etm1aidAC2gx5z4Fiho0/K2H7yW+zW0Qcq1URZhQcEjTNZ/wZtCb/mevvPLr1TtYOPTYujSek+99X pqn5z1IeRKxjJJuneBu2OtPdqqqOtYXW3720KU4ywAU70YR7XpDXem8qEBHR4EXZuGhH+wtxZC8Px LYY+cjywiQ5MLI+h078Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qTii3-004w5C-0A; Wed, 09 Aug 2023 12:54:43 +0000 Received: from mx0b-00069f02.pphosted.com ([205.220.177.32]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qTihy-004w3b-1J for linux-arm-kernel@lists.infradead.org; Wed, 09 Aug 2023 12:54:39 +0000 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 379CrGlY007796; Wed, 9 Aug 2023 12:54:18 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-2023-03-30; bh=F2lfrzJlWT849Hq5g4+oLQ9l0eG3oorZOJZ0GrdTMjc=; b=jyR98brkXNH5hxIgoV/+lYc+OSjfV9SE3ZFD/r09ocUGAmabLsK6dmwhL9y3AE4YaWAB x7/e07+yEr1Aj3XJZgxf1MBoei6muNI+hVpAJkpjY62CGM31yrAL7U9rI52MS6MIw2oz LSyZS+w+k6lnaXDTGToO4aD8fT1bp9jvGeB5WD8KLICYENmK6rWQfZkJaHcPCmXhSvHN IREWCS2OV7Ge7cjfQQRxfWU84mctxrxbpevxeWIAcHbLRNkb5jbRlNtQNNTB3BBBg8OK ekZkXvwKjjPslzceBAJeQghleHHKbETZhKCakAYLIsmaR9yrnDBnA5wOsbGDNsys3z49 SQ== Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.appoci.oracle.com [138.1.37.129]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3s9cuerfyd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Aug 2023 12:54:18 +0000 Received: from pps.filterd (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 379CIABH021532; Wed, 9 Aug 2023 12:54:01 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3s9cvdygxd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Aug 2023 12:54:01 +0000 Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 379CqCGN027258; Wed, 9 Aug 2023 12:54:00 GMT Received: from mihai.localdomain (ban25x6uut25.us.oracle.com [10.153.73.25]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 3s9cvdyf90-6; Wed, 09 Aug 2023 12:54:00 +0000 From: Mihai Carabas To: Cc: Joao Martins , Mihai Carabas , Catalin Marinas , Will Deacon , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Paolo Bonzini , Wanpeng Li , Vitaly Kuznetsov , "Rafael J. Wysocki" , Daniel Lezcano , Andrew Morton , Kees Cook , Peter Zijlstra , Petr Mladek , Ard Biesheuvel , Sami Tolvanen , Nicholas Piggin , Juerg Haefliger , =?utf-8?q?Micka=C3=ABl_Sal?= =?utf-8?q?a=C3=BCn?= , Arnd Bergmann , Ankur Arora , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 5/7] arm64: Select ARCH_HAS_CPU_RELAX Date: Wed, 9 Aug 2023 14:39:39 +0300 Message-Id: <1691581193-8416-6-git-send-email-mihai.carabas@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> References: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-09_10,2023-08-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 malwarescore=0 spamscore=0 adultscore=0 mlxlogscore=985 bulkscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308090114 X-Proofpoint-ORIG-GUID: HUfDo3ON1mHD58lOUhvjKcDv8NUVytAY X-Proofpoint-GUID: HUfDo3ON1mHD58lOUhvjKcDv8NUVytAY X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230809_055438_560459_03B7853D X-CRM114-Status: GOOD ( 15.70 ) 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: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Joao Martins cpu_relax() is necessary to allow cpuidle poll-state to be used, so select it from ARM64 kconfig. Signed-off-by: Joao Martins Signed-off-by: Mihai Carabas --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 87ade6549790..7c47617b5722 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -105,6 +105,7 @@ config ARM64 select ARCH_WANT_LD_ORPHAN_WARN select ARCH_WANTS_NO_INSTR select ARCH_WANTS_THP_SWAP if ARM64_4K_PAGES + select ARCH_HAS_CPU_RELAX select ARCH_HAS_UBSAN_SANITIZE_ALL select ARM_AMBA select ARM_ARCH_TIMER From patchwork Wed Aug 9 11:39:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mihai Carabas X-Patchwork-Id: 13347928 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 7D508C0015E for ; Wed, 9 Aug 2023 12:55:03 +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:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=kHrhig/O7mOZG7j6Nx/jVbjkgrwG3gCyYg11bdJevyw=; b=uOBmQfZJEnjtqQ 9bAtXszjKn4Q2hRGusKuoeAqkaDE/tC87SrDmCUv1MkwOcjUqHpFB5LxX+kzS19rUvOFs7MQXOMxq dhB3oZxVzZxPC02mDNhVEVUKBFN7YoTcV3WavTgZ1TlEScy8puvFOKIhYOOyVfAMBsOp4p48PEXRC iicYfks7spyNvEUoOTOu1MoQnd4RAgBvWB/FWo3mxJfUm868D/ArcG9rcy/LELE4Pf0RXC4U9o++/ nblOTX76lthF8VwFdr+d3OjOCJOx60TUjA4xcQwZ6dtIDkJ3+6cAkGpdKxosQid9T3kbsVqx4iI6w fbuBSzbuAVaM0ZM92qPg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qTihz-004w4O-1E; Wed, 09 Aug 2023 12:54:39 +0000 Received: from mx0b-00069f02.pphosted.com ([205.220.177.32]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qTihx-004w3A-1I for linux-arm-kernel@lists.infradead.org; Wed, 09 Aug 2023 12:54:38 +0000 Received: from pps.filterd (m0333520.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 379CrAMj003841; Wed, 9 Aug 2023 12:54:18 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-2023-03-30; bh=3CBdIWj34ZRhxUcc3rj18We/Fw9vZjncSXWx3xdqX8c=; b=jqUvKmcI0iRH7yyuqD+FJpXcehOvbBlaOcQ8ZTYMRUh2ISAX6kUZNU7PQno+4c4dIMRT Cc7b1hALhsNVK/4AT8wIWKeARWbjY6s7Fguqi/QXtRYHmlqSf5tKuckVHY1RP03iNOt/ 0zIOWxapVCetvWSMWAkGDbOzOBuDw4jxWtTj73DXFQ30fWgUxNaFoQvphxsWfTzeVJz4 eO6AkOG7sfCi3ezRVMLcCg5DLx/tcbusKx0/02KY4Zt+XCvnTjz1PvhoTDqT/YczDW+H xdLUzrU0REkQXNdtpV5CJBpr/44gOiVYYnW2+hCxwZB88wqJI6ZAVQneG1L6ggaV6Cef pA== Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.appoci.oracle.com [138.1.37.129]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3s9efd8mfm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Aug 2023 12:54:17 +0000 Received: from pps.filterd (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 379CLjKs021450; Wed, 9 Aug 2023 12:54:16 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3s9cvdyh79-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Aug 2023 12:54:16 +0000 Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 379CqCGP027258; Wed, 9 Aug 2023 12:54:15 GMT Received: from mihai.localdomain (ban25x6uut25.us.oracle.com [10.153.73.25]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 3s9cvdyf90-7; Wed, 09 Aug 2023 12:54:15 +0000 From: Mihai Carabas To: Cc: Joao Martins , Mihai Carabas , Catalin Marinas , Will Deacon , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Paolo Bonzini , Wanpeng Li , Vitaly Kuznetsov , "Rafael J. Wysocki" , Daniel Lezcano , Andrew Morton , Kees Cook , Peter Zijlstra , Petr Mladek , Ard Biesheuvel , Sami Tolvanen , Nicholas Piggin , Juerg Haefliger , =?utf-8?q?Micka=C3=ABl_Sal?= =?utf-8?q?a=C3=BCn?= , Arnd Bergmann , Ankur Arora , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 6/7] arm64: Define TIF_POLLING_NRFLAG Date: Wed, 9 Aug 2023 14:39:40 +0300 Message-Id: <1691581193-8416-7-git-send-email-mihai.carabas@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> References: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-09_10,2023-08-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 malwarescore=0 spamscore=0 adultscore=0 mlxlogscore=869 bulkscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308090114 X-Proofpoint-GUID: WCDia_qDu-gV8Dwp3ZO2w_zOHE8um58f X-Proofpoint-ORIG-GUID: WCDia_qDu-gV8Dwp3ZO2w_zOHE8um58f X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230809_055437_551683_23CEA3AD X-CRM114-Status: GOOD ( 17.52 ) 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: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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) From patchwork Wed Aug 9 11:39:41 2023 Content-Type: text/plain; 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Wed, 09 Aug 2023 12:54:32 +0000 Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 379CqCGR027258; Wed, 9 Aug 2023 12:54:31 GMT Received: from mihai.localdomain (ban25x6uut25.us.oracle.com [10.153.73.25]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 3s9cvdyf90-8; Wed, 09 Aug 2023 12:54:31 +0000 From: Mihai Carabas To: Cc: Joao Martins , Mihai Carabas , Catalin Marinas , Will Deacon , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Paolo Bonzini , Wanpeng Li , Vitaly Kuznetsov , "Rafael J. Wysocki" , Daniel Lezcano , Andrew Morton , Kees Cook , Peter Zijlstra , Petr Mladek , Ard Biesheuvel , Sami Tolvanen , Nicholas Piggin , Juerg Haefliger , =?utf-8?q?Micka=C3=ABl_Sal?= =?utf-8?q?a=C3=BCn?= , Arnd Bergmann , Ankur Arora , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 7/7] cpuidle-haltpoll: ARM64 support Date: Wed, 9 Aug 2023 14:39:41 +0300 Message-Id: <1691581193-8416-8-git-send-email-mihai.carabas@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> References: <1691581193-8416-1-git-send-email-mihai.carabas@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-09_10,2023-08-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 malwarescore=0 spamscore=0 adultscore=0 mlxlogscore=999 bulkscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308090114 X-Proofpoint-GUID: TujCdh-4ZmyJLuERrr4PX2oao1-X7VtH X-Proofpoint-ORIG-GUID: TujCdh-4ZmyJLuERrr4PX2oao1-X7VtH X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230809_055452_736101_3B4063F4 X-CRM114-Status: GOOD ( 20.91 ) 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: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Joao Martins To test whether it's a guest or not for the default cases, the haltpoll driver uses the kvm_para* helpers to find out if it's a guest or not. ARM64 doesn't have or defined any of these, so it remains disabled on the default. Although it allows to be force-loaded. Signed-off-by: Joao Martins Signed-off-by: Mihai Carabas --- drivers/cpuidle/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/cpuidle/Kconfig b/drivers/cpuidle/Kconfig index cac5997dca50..067927eda466 100644 --- a/drivers/cpuidle/Kconfig +++ b/drivers/cpuidle/Kconfig @@ -35,7 +35,7 @@ config CPU_IDLE_GOV_TEO config CPU_IDLE_GOV_HALTPOLL bool "Haltpoll governor (for virtualized systems)" - depends on KVM_GUEST + depends on (X86 && KVM_GUEST) || ARM64 help This governor implements haltpoll idle state selection, to be used in conjunction with the haltpoll cpuidle driver, allowing @@ -73,7 +73,7 @@ endmenu config HALTPOLL_CPUIDLE tristate "Halt poll cpuidle driver" - depends on X86 && KVM_GUEST + depends on (X86 && KVM_GUEST) || ARM64 select CPU_IDLE_GOV_HALTPOLL default y help