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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 19748C7EE23 for ; Wed, 1 Mar 2023 23:42:29 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4PRrPb5Jjxz3cdH for ; Thu, 2 Mar 2023 10:42:27 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=TUujS3yU; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=linux.intel.com (client-ip=192.55.52.43; helo=mga05.intel.com; envelope-from=ricardo.neri-calderon@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=TUujS3yU; dkim-atps=neutral Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4PRrJY093nz3c9K for ; Thu, 2 Mar 2023 10:38:04 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1677713885; x=1709249885; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=K9unSxI1ETIAj+1EQ34Lma1zVNuCMXNt2Vl73pS93As=; b=TUujS3yUhSfD7Chvm02pO0rCpM8nxfn41zHwxf/TEG1Fp6n46eql8Ezl zJmcxzKfqpYhWjoDU7H7ud6GZZ+sBHVmJAnbnZqGHISY54ISPuyqIPBGE UPWireq888+y5uj5ekDxZ5F8pvABoBSw2ydnujHNvM8jqtr7vArrK1C3k qfiMqRQCLNC/+4KJn5pYoq+RDcLx7hzTKJ3qU0l3l875aG3DENM4TdVGS Qssnj8DZn72gNj3H7vd70ZVogLIf6OYHdnCTHKCetlK7kxU2PpwmOFiUt sMDgYLIbJ7kt4QGnHg7h8Eli3myEi5YQlNcqudj2MHFiYbVQifa2WX8et Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10636"; a="420818696" X-IronPort-AV: E=Sophos;i="5.98,225,1673942400"; d="scan'208";a="420818696" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Mar 2023 15:37:56 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10636"; a="738826802" X-IronPort-AV: E=Sophos;i="5.98,225,1673942400"; d="scan'208";a="738826802" Received: from ranerica-svr.sc.intel.com ([172.25.110.23]) by fmsmga008.fm.intel.com with ESMTP; 01 Mar 2023 15:37:56 -0800 From: Ricardo Neri To: Tony Luck , Dave Hansen , "Rafael J. Wysocki" , Reinette Chatre , Dan Williams , Len Brown Subject: [PATCH v7 05/24] x86/apic/vector: Skip cleanup for the NMI vector Date: Wed, 1 Mar 2023 15:47:34 -0800 Message-Id: <20230301234753.28582-6-ricardo.neri-calderon@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230301234753.28582-1-ricardo.neri-calderon@linux.intel.com> References: <20230301234753.28582-1-ricardo.neri-calderon@linux.intel.com> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Ravi V. Shankar" , Andi Kleen , Ricardo Neri , Ricardo Neri , Stephane Eranian , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" The NMI vector is fixed. No cleanup is needed after updating affinity. Cc: Andi Kleen Cc: "Ravi V. Shankar" Cc: Stephane Eranian Cc: iommu@lists.linux-foundation.org Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Ricardo Neri --- Changes since v6: * Introduced this patch. Changes since v5: * N/A Changes since v4: * N/A Changes since v3: * N/A Changes since v2: * N/A Changes since v1: * N/A --- arch/x86/kernel/apic/vector.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index a4cf041427cb..3045823ecc1b 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -1050,6 +1050,10 @@ void send_cleanup_vector(struct irq_cfg *cfg) { struct apic_chip_data *apicd; + /* NMI has a fixed vector. No vector management required. */ + if (cfg->delivery_mode == APIC_DELIVERY_MODE_NMI) + return; + apicd = container_of(cfg, struct apic_chip_data, hw_irq_cfg); if (apicd->move_in_progress) __send_cleanup_vector(apicd); -- 2.25.1