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=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 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 AB3A0C43463 for ; Fri, 18 Sep 2020 08:49:19 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1658420C56 for ; Fri, 18 Sep 2020 08:49:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1658420C56 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 97F9B8706F; Fri, 18 Sep 2020 08:49:18 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id iWGUJtW-yEC8; Fri, 18 Sep 2020 08:49:17 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id D74E887069; Fri, 18 Sep 2020 08:49:17 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id AFB73C0888; Fri, 18 Sep 2020 08:49:17 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 6131BC0051 for ; Fri, 18 Sep 2020 08:49:16 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 4D699204F7 for ; Fri, 18 Sep 2020 08:49:16 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id F26k0m4RstNM for ; Fri, 18 Sep 2020 08:49:15 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from theia.8bytes.org (8bytes.org [81.169.241.247]) by silver.osuosl.org (Postfix) with ESMTPS id E8AD3203C7 for ; Fri, 18 Sep 2020 08:49:14 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id E5DCC39A; Fri, 18 Sep 2020 10:49:12 +0200 (CEST) Date: Fri, 18 Sep 2020 10:49:11 +0200 From: Joerg Roedel To: Wesley Sheng Subject: Re: [PATCH] iommu/amd: Add prefetch iommu pages command build function Message-ID: <20200918084911.GI31590@8bytes.org> References: <20200905071420.20190-1-wesley.sheng@amd.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200905071420.20190-1-wesley.sheng@amd.com> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: iommu@lists.linux-foundation.org, wesleyshenggit@sina.com, linux-kernel@vger.kernel.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Sat, Sep 05, 2020 at 03:14:20PM +0800, Wesley Sheng wrote: > +static void build_pf_iommu_pages(struct iommu_cmd *cmd, u64 address, > + u16 devid, int pfcnt, bool size, > + bool inv) > +{ > + memset(cmd, 0, sizeof(*cmd)); > + > + address &= PAGE_MASK; > + > + cmd->data[0] = devid; > + cmd->data[0] |= (pfcnt & 0xff) << 24; > + cmd->data[2] = lower_32_bits(address); > + cmd->data[3] = upper_32_bits(address; > + if (size) > + cmd->data[2] |= CMD_INV_IOMMU_PAGES_SIZE_MASK; > + if (inv) > + cmd->data[2] |= CMD_PF_IOMMU_PAGES_INV_MASK; > + CMD_SET_TYPE(cmd, CMD_PF_IOMMU_PAGES); > +} This also needs to add a user of this function. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu