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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 87A76C282DD for ; Fri, 24 May 2019 01:17:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4E15F2175B for ; Fri, 24 May 2019 01:17:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388704AbfEXBQi (ORCPT ); Thu, 23 May 2019 21:16:38 -0400 Received: from mga02.intel.com ([134.134.136.20]:42224 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387578AbfEXBQh (ORCPT ); Thu, 23 May 2019 21:16:37 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 May 2019 18:16:34 -0700 X-ExtLoop1: 1 Received: from unknown (HELO luv-build.sc.intel.com) ([172.25.110.25]) by fmsmga008.fm.intel.com with ESMTP; 23 May 2019 18:16:34 -0700 From: Ricardo Neri To: Thomas Gleixner , Ingo Molnar , Borislav Petkov Cc: Ashok Raj , Joerg Roedel , Andi Kleen , Peter Zijlstra , Suravee Suthikulpanit , Stephane Eranian , "Ravi V. Shankar" , Randy Dunlap , x86@kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Ricardo Neri , Ricardo Neri , "H. Peter Anvin" , Tony Luck , Juergen Gross , Bjorn Helgaas , Wincy Van , Kate Stewart , Philippe Ombredanne , "Eric W. Biederman" , Baoquan He , Jan Kiszka Subject: [RFC PATCH v4 01/21] x86/msi: Add definition for NMI delivery mode Date: Thu, 23 May 2019 18:16:03 -0700 Message-Id: <1558660583-28561-2-git-send-email-ricardo.neri-calderon@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1558660583-28561-1-git-send-email-ricardo.neri-calderon@linux.intel.com> References: <1558660583-28561-1-git-send-email-ricardo.neri-calderon@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Until now, the delivery mode of MSI interrupts is set to the default mode set in the APIC driver. However, there are no restrictions in hardware to configure each interrupt with a different delivery mode. Specifying the delivery mode per interrupt is useful when one is interested in changing the delivery mode of a particular interrupt. For instance, this can be used to deliver an interrupt as non-maskable. Cc: "H. Peter Anvin" Cc: Ashok Raj Cc: Andi Kleen Cc: Tony Luck Cc: Joerg Roedel Cc: Juergen Gross Cc: Bjorn Helgaas Cc: Wincy Van Cc: Kate Stewart Cc: Philippe Ombredanne Cc: "Eric W. Biederman" Cc: Baoquan He Cc: Jan Kiszka Cc: Stephane Eranian Cc: Suravee Suthikulpanit Cc: "Ravi V. Shankar" Cc: x86@kernel.org Signed-off-by: Ricardo Neri --- arch/x86/include/asm/msidef.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/include/asm/msidef.h b/arch/x86/include/asm/msidef.h index ee2f8ccc32d0..38ccfdc2d96e 100644 --- a/arch/x86/include/asm/msidef.h +++ b/arch/x86/include/asm/msidef.h @@ -18,6 +18,7 @@ #define MSI_DATA_DELIVERY_MODE_SHIFT 8 #define MSI_DATA_DELIVERY_FIXED (0 << MSI_DATA_DELIVERY_MODE_SHIFT) #define MSI_DATA_DELIVERY_LOWPRI (1 << MSI_DATA_DELIVERY_MODE_SHIFT) +#define MSI_DATA_DELIVERY_NMI (4 << MSI_DATA_DELIVERY_MODE_SHIFT) #define MSI_DATA_LEVEL_SHIFT 14 #define MSI_DATA_LEVEL_DEASSERT (0 << MSI_DATA_LEVEL_SHIFT) -- 2.17.1