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=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no 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 2D34BC4727C for ; Mon, 28 Sep 2020 22:43:32 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 988B623A50 for ; Mon, 28 Sep 2020 22:43:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 988B623A50 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id CEB536B005C; Mon, 28 Sep 2020 18:43:30 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C99936B005D; Mon, 28 Sep 2020 18:43:30 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BD7DF6B0062; Mon, 28 Sep 2020 18:43:30 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0145.hostedemail.com [216.40.44.145]) by kanga.kvack.org (Postfix) with ESMTP id A8FA06B005C for ; Mon, 28 Sep 2020 18:43:30 -0400 (EDT) Received: from smtpin10.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 7166D181AE860 for ; Mon, 28 Sep 2020 22:43:30 +0000 (UTC) X-FDA: 77313948180.10.ray18_4c1410327185 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin10.hostedemail.com (Postfix) with ESMTP id 4F86E16A07F for ; Mon, 28 Sep 2020 22:43:30 +0000 (UTC) X-HE-Tag: ray18_4c1410327185 X-Filterd-Recvd-Size: 2966 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by imf50.hostedemail.com (Postfix) with ESMTP for ; Mon, 28 Sep 2020 22:43:29 +0000 (UTC) IronPort-SDR: GXmkEnG2H77C/U4q/taLFOmq5s8mjBa/20FL1nZYDmzAbotDnfO9f+aqBaKoIunmsnnzoqkOq2 NDQxiCoRL78A== X-IronPort-AV: E=McAfee;i="6000,8403,9758"; a="149733213" X-IronPort-AV: E=Sophos;i="5.77,315,1596524400"; d="scan'208";a="149733213" 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/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2020 15:43:26 -0700 IronPort-SDR: rCA5Vj6kEombFDbuiVXDEh9SbyPI6CHa4Jbb52aiogSx3I1tyBXcgeHfvMnlFOC97xkJ9YRUDh tYozbinczf4A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,315,1596524400"; d="scan'208";a="294052885" Received: from otcwcpicx6.sc.intel.com ([172.25.55.29]) by fmsmga008.fm.intel.com with ESMTP; 28 Sep 2020 15:43:26 -0700 Date: Mon, 28 Sep 2020 22:43:26 +0000 From: Fenghua Yu To: Will Deacon Cc: Jean-Philippe Brucker , iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, joro@8bytes.org, catalin.marinas@arm.com, robin.murphy@arm.com, baolu.lu@linux.intel.com, Jonathan.Cameron@huawei.com, jacob.jun.pan@linux.intel.com, zhangfei.gao@linaro.org, xuzaibo@huawei.com, fenghua.yu@intel.com, eric.auger@redhat.com, Christoph Hellwig , Tony Luck , Ravi V Shankar Subject: Re: [PATCH v10 01/13] mm: Define pasid in mm Message-ID: <20200928224326.GA3252736@otcwcpicx6.sc.intel.com> References: <20200918101852.582559-1-jean-philippe@linaro.org> <20200918101852.582559-2-jean-philippe@linaro.org> <20200928222250.GA12847@willie-the-truck> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200928222250.GA12847@willie-the-truck> X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi, Will and Jean, On Mon, Sep 28, 2020 at 11:22:51PM +0100, Will Deacon wrote: > On Fri, Sep 18, 2020 at 12:18:41PM +0200, Jean-Philippe Brucker wrote: > > From: Fenghua Yu > > > > PASID is shared by all threads in a process. So the logical place to keep > > track of it is in the "mm". Both ARM and X86 need to use the PASID in the > > "mm". > > > > Suggested-by: Christoph Hellwig > > Signed-off-by: Fenghua Yu > > Reviewed-by: Tony Luck > > --- > > https://lore.kernel.org/linux-iommu/1600187413-163670-8-git-send-email-fenghua.yu@intel.com/ > > --- > > include/linux/mm_types.h | 4 ++++ > > 1 file changed, 4 insertions(+) > > Acked-by: Will Deacon FYI. This patch is in x86 maintainers tree tip:x86/pasid now as part of the x86 PASID MSR series. Thanks. -Fenghua