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=-6.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 B6293C43331 for ; Fri, 27 Mar 2020 08:08:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8D14F20714 for ; Fri, 27 Mar 2020 08:08:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726656AbgC0IIf convert rfc822-to-8bit (ORCPT ); Fri, 27 Mar 2020 04:08:35 -0400 Received: from mga12.intel.com ([192.55.52.136]:5051 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726027AbgC0IIe (ORCPT ); Fri, 27 Mar 2020 04:08:34 -0400 IronPort-SDR: vp7rjvUc+0sR3I0iapznDKJbbY9DDV0BECAnVbaOC1uYW64hvQYXrLKy0vY8E0+kZW/SMOAagJ MBavNtL0zQNg== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Mar 2020 01:08:34 -0700 IronPort-SDR: buR524aD/e80Ourn79f7DoPrbFKB539C8LldXmTnXIJdDmxCvG/3wdxp9TV0UVUvNHHh7ie3mC J+9ePs1vUlcQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.72,311,1580803200"; d="scan'208";a="241224785" Received: from fmsmsx108.amr.corp.intel.com ([10.18.124.206]) by orsmga008.jf.intel.com with ESMTP; 27 Mar 2020 01:08:34 -0700 Received: from fmsmsx126.amr.corp.intel.com (10.18.125.43) by FMSMSX108.amr.corp.intel.com (10.18.124.206) with Microsoft SMTP Server (TLS) id 14.3.439.0; Fri, 27 Mar 2020 01:08:33 -0700 Received: from shsmsx103.ccr.corp.intel.com (10.239.4.69) by FMSMSX126.amr.corp.intel.com (10.18.125.43) with Microsoft SMTP Server (TLS) id 14.3.439.0; Fri, 27 Mar 2020 01:08:33 -0700 Received: from shsmsx104.ccr.corp.intel.com ([169.254.5.206]) by SHSMSX103.ccr.corp.intel.com ([169.254.4.137]) with mapi id 14.03.0439.000; Fri, 27 Mar 2020 16:08:31 +0800 From: "Tian, Kevin" To: Jacob Pan , Joerg Roedel , Alex Williamson , Lu Baolu , "iommu@lists.linux-foundation.org" , LKML , David Woodhouse , Jean-Philippe Brucker CC: "Liu, Yi L" , "Raj, Ashok" , Christoph Hellwig , Jonathan Cameron , Eric Auger Subject: RE: [PATCH 02/10] iommu/vt-d: Set IOASID capacity when SVM is enabled Thread-Topic: [PATCH 02/10] iommu/vt-d: Set IOASID capacity when SVM is enabled Thread-Index: AQHWAs3Jv/fTpFRE2EynDv9cbyI49ahcGAig Date: Fri, 27 Mar 2020 08:08:30 +0000 Message-ID: References: <1585158931-1825-1-git-send-email-jacob.jun.pan@linux.intel.com> <1585158931-1825-3-git-send-email-jacob.jun.pan@linux.intel.com> In-Reply-To: <1585158931-1825-3-git-send-email-jacob.jun.pan@linux.intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-version: 11.2.0.6 dlp-reaction: no-action x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > From: Jacob Pan > Sent: Thursday, March 26, 2020 1:55 AM > > Assign system-wide PASID capacity with enumerated max value. > Currently, all Intel SVM capable devices should support full 20 bits of > PASID value. > > Signed-off-by: Jacob Pan > --- > drivers/iommu/intel-iommu.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c > index a699a765c983..ec3fc121744a 100644 > --- a/drivers/iommu/intel-iommu.c > +++ b/drivers/iommu/intel-iommu.c > @@ -3510,6 +3510,10 @@ static int __init init_dmars(void) > if (ret) > goto free_iommu; > > + /* PASID is needed for scalable mode irrespective to SVM */ > + if (intel_iommu_sm) > + ioasid_install_capacity(intel_pasid_max_id); > + > /* > * for each drhd > * enable fault log > -- > 2.7.4 Reviewed-by: Kevin Tian