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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 38730C433DF for ; Tue, 16 Jun 2020 15:11:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 23CB8207C3 for ; Tue, 16 Jun 2020 15:11:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729253AbgFPPLh (ORCPT ); Tue, 16 Jun 2020 11:11:37 -0400 Received: from mga18.intel.com ([134.134.136.126]:64061 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727077AbgFPPLh (ORCPT ); Tue, 16 Jun 2020 11:11:37 -0400 IronPort-SDR: uHar3FlRWYseKDnGobEVCGr6c4tliUSzusna7XbriXygDLHVprwi+lbLQt9NqbIa2N3Fj5lPb1 uLP51a/3/blg== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2020 08:11:36 -0700 IronPort-SDR: SwSn7gnGYbdK+kflKxePGQpLDi6Nn79/DH91IjaxvnM8WNKqmDDB6H+G96jm7432GHx9wtSMu7 KHuOqv+1JqVg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,518,1583222400"; d="scan'208";a="382897812" Received: from romley-ivt3.sc.intel.com ([172.25.110.60]) by fmsmga001.fm.intel.com with ESMTP; 16 Jun 2020 08:11:34 -0700 Date: Tue, 16 Jun 2020 08:11:35 -0700 From: Fenghua Yu To: Jean-Philippe Brucker Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , H Peter Anvin , David Woodhouse , Lu Baolu , Frederic Barrat , Andrew Donnellan , Felix Kuehling , Joerg Roedel , Dave Hansen , Tony Luck , Ashok Raj , Jacob Jun Pan , Dave Jiang , Yu-cheng Yu , Sohil Mehta , Ravi V Shankar , x86 , linux-kernel , amd-gfx , iommu@lists.linux-foundation.org, linuxppc-dev Subject: Re: [PATCH v2 08/12] mm: Define pasid in mm Message-ID: <20200616151134.GA15763@romley-ivt3.sc.intel.com> References: <1592008893-9388-1-git-send-email-fenghua.yu@intel.com> <1592008893-9388-9-git-send-email-fenghua.yu@intel.com> <20200616082819.GA590740@myrica> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200616082819.GA590740@myrica> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Jean, On Tue, Jun 16, 2020 at 10:28:19AM +0200, Jean-Philippe Brucker wrote: > On Fri, Jun 12, 2020 at 05:41:29PM -0700, Fenghua Yu wrote: > > diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h > > index 64ede5f150dc..5778db3aa42d 100644 > > --- a/include/linux/mm_types.h > > +++ b/include/linux/mm_types.h > > @@ -538,6 +538,10 @@ struct mm_struct { > > atomic_long_t hugetlb_usage; > > #endif > > struct work_struct async_put_work; > > + > > +#ifdef CONFIG_PCI_PASID > > Non-PCI devices can also use a PASID (e.g. Arm's SubstreamID). How about > CONFIG_IOMMU_SUPPORT? Sure. I will change it to CONFIG_IOMMU_SUPPORT. Thanks. -Fenghua