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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,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 630FCC12002 for ; Thu, 15 Jul 2021 01:51:27 +0000 (UTC) Received: from smtp4.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 D3B12613C1 for ; Thu, 15 Jul 2021 01:51:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D3B12613C1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=hisilicon.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 89717404F4; Thu, 15 Jul 2021 01:51:26 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SAAZu6Dz6zkQ; Thu, 15 Jul 2021 01:51:25 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp4.osuosl.org (Postfix) with ESMTPS id 1AEC5404AB; Thu, 15 Jul 2021 01:51:24 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id DA978C0010; Thu, 15 Jul 2021 01:51:24 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id E5F41C000E for ; Thu, 15 Jul 2021 01:51:23 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id D429D60B0B for ; Thu, 15 Jul 2021 01:51:23 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id sDNSfbftK_Hp for ; Thu, 15 Jul 2021 01:51:19 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by smtp3.osuosl.org (Postfix) with ESMTPS id 7CE8460763 for ; Thu, 15 Jul 2021 01:51:19 +0000 (UTC) Received: from dggeme756-chm.china.huawei.com (unknown [172.30.72.57]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4GQHJJ1NH6zXtG7; Thu, 15 Jul 2021 09:45:36 +0800 (CST) Received: from [127.0.0.1] (10.40.193.166) by dggeme756-chm.china.huawei.com (10.3.19.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Thu, 15 Jul 2021 09:51:14 +0800 Subject: Re: [PATCH v7 00/15] Optimizing iommu_[map/unmap] performance To: Lu Baolu , Georgi Djakov , Georgi Djakov , , References: <1623850736-389584-1-git-send-email-quic_c_gdjako@quicinc.com> <4d466ea9-2c1a-2e19-af5b-0434441ee7cb@linux.intel.com> From: "chenxiang (M)" Message-ID: Date: Thu, 15 Jul 2021 09:51:13 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <4d466ea9-2c1a-2e19-af5b-0434441ee7cb@linux.intel.com> X-Originating-IP: [10.40.193.166] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggeme756-chm.china.huawei.com (10.3.19.102) X-CFilter-Loop: Reflected Cc: isaacm@codeaurora.org, linux-kernel@vger.kernel.org, "linuxarm@huawei.com" , iommu@lists.linux-foundation.org, pratikp@codeaurora.org, linux-arm-kernel@lists.infradead.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-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" CgrlnKggMjAyMS83LzE1IDk6MjMsIEx1IEJhb2x1IOWGmemBkzoKPiBPbiA3LzE0LzIxIDEwOjI0 IFBNLCBHZW9yZ2kgRGpha292IHdyb3RlOgo+PiBPbiAxNi4wNi4yMSAxNjozOCwgR2VvcmdpIERq YWtvdiB3cm90ZToKPj4+IFdoZW4gdW5tYXBwaW5nIGEgYnVmZmVyIGZyb20gYW4gSU9NTVUgZG9t YWluLCB0aGUgSU9NTVUgZnJhbWV3b3JrIAo+Pj4gdW5tYXBzCj4+PiB0aGUgYnVmZmVyIGF0IGEg Z3JhbnVsZSBvZiB0aGUgbGFyZ2VzdCBwYWdlIHNpemUgdGhhdCBpcyBzdXBwb3J0ZWQgYnkKPj4+ IHRoZSBJT01NVSBoYXJkd2FyZSBhbmQgZml0cyB3aXRoaW4gdGhlIGJ1ZmZlci4gRm9yIGV2ZXJ5 IGJsb2NrIHRoYXQKPj4+IGlzIHVubWFwcGVkLCB0aGUgSU9NTVUgZnJhbWV3b3JrIHdpbGwgY2Fs bCBpbnRvIHRoZSBJT01NVSBkcml2ZXIsIGFuZAo+Pj4gdGhlbiB0aGUgaW8tcGd0YWJsZSBmcmFt ZXdvcmsgdG8gd2FsayB0aGUgcGFnZSB0YWJsZXMgdG8gZmluZCB0aGUgZW50cnkKPj4+IHRoYXQg Y29ycmVzcG9uZHMgdG8gdGhlIElPVkEsIGFuZCB0aGVuIHVubWFwcyB0aGUgZW50cnkuCj4+Pgo+ Pj4gVGhpcyBjYW4gYmUgc3Vib3B0aW1hbCBpbiBzY2VuYXJpb3Mgd2hlcmUgYSBidWZmZXIgb3Ig YSBwaWVjZSBvZiBhCj4+PiBidWZmZXIgY2FuIGJlIHNwbGl0IGludG8gc2V2ZXJhbCBjb250aWd1 b3VzIHBhZ2UgYmxvY2tzIG9mIHRoZSBzYW1lIAo+Pj4gc2l6ZS4KPj4+IEZvciBleGFtcGxlLCBj b25zaWRlciBhbiBJT01NVSB0aGF0IHN1cHBvcnRzIDQgS0IgcGFnZSBibG9ja3MsIDIgTUIgCj4+ PiBwYWdlCj4+PiBibG9ja3MsIGFuZCAxIEdCIHBhZ2UgYmxvY2tzLCBhbmQgYSBidWZmZXIgdGhh dCBpcyA0IE1CIGluIHNpemUgaXMgCj4+PiBiZWluZwo+Pj4gdW5tYXBwZWQgYXQgSU9WQSAwLiBU aGUgY3VycmVudCBjYWxsLWZsb3cgd2lsbCByZXN1bHQgaW4gNCBpbmRpcmVjdCAKPj4+IGNhbGxz LAo+Pj4gYW5kIDIgcGFnZSB0YWJsZSB3YWxrcywgdG8gdW5tYXAgMiBlbnRyaWVzIHRoYXQgYXJl IG5leHQgdG8gZWFjaCAKPj4+IG90aGVyIGluCj4+PiB0aGUgcGFnZS10YWJsZXMsIHdoZW4gYm90 aCBlbnRyaWVzIGNvdWxkIGhhdmUgYmVlbiB1bm1hcHBlZCBpbiBvbmUgc2hvdAo+Pj4gYnkgY2xl YXJpbmcgYm90aCBwYWdlIHRhYmxlIGVudHJpZXMgaW4gdGhlIHNhbWUgY2FsbC4KPj4+Cj4+PiBU aGUgc2FtZSBvcHRpbWl6YXRpb24gaXMgYXBwbGljYWJsZSB0byBtYXBwaW5nIGJ1ZmZlcnMgYXMg d2VsbCwgc28KPj4+IHRoZXNlIHBhdGNoZXMgaW1wbGVtZW50IGEgc2V0IG9mIGNhbGxiYWNrcyBj YWxsZWQgdW5tYXBfcGFnZXMgYW5kCj4+PiBtYXBfcGFnZXMgdG8gdGhlIGlvLXBndGFibGUgY29k ZSBhbmQgSU9NTVUgZHJpdmVycyB3aGljaCB1bm1hcHMgb3IgbWFwcwo+Pj4gYW4gSU9WQSByYW5n ZSB0aGF0IGNvbnNpc3RzIG9mIGEgbnVtYmVyIG9mIHBhZ2VzIG9mIHRoZSBzYW1lCj4+PiBwYWdl IHNpemUgdGhhdCBpcyBzdXBwb3J0ZWQgYnkgdGhlIElPTU1VIGhhcmR3YXJlLCBhbmQgYWxsb3dz IGZvcgo+Pj4gbWFuaXB1bGF0aW5nIG11bHRpcGxlIHBhZ2UgdGFibGUgZW50cmllcyBpbiB0aGUg c2FtZSBzZXQgb2YgaW5kaXJlY3QKPj4+IGNhbGxzLiBUaGUgcmVhc29uIGZvciBpbnRyb2R1Y2lu ZyB0aGVzZSBjYWxsYmFja3MgaXMgdG8gZ2l2ZSBvdGhlciAKPj4+IElPTU1VCj4+PiBkcml2ZXJz L2lvLXBndGFibGUgZm9ybWF0cyB0aW1lIHRvIGNoYW5nZSB0byB1c2luZyB0aGUgbmV3IAo+Pj4g Y2FsbGJhY2tzLCBzbwo+Pj4gdGhhdCB0aGUgdHJhbnNpdGlvbiB0byB1c2luZyB0aGlzIGFwcHJv YWNoIGNhbiBiZSBkb25lIHBpZWNlbWVhbC4KPj4KPj4gSGkgV2lsbCwKPj4KPj4gRGlkIHlvdSBn ZXQgYSBjaGFuY2UgdG8gbG9vayBhdCB0aGlzIHBhdGNoc2V0PyBNb3N0IHBhdGNoZXMgYXJlIGFs cmVhZHkKPj4gYWNrZWQvcmV2aWV3ZWQgYW5kIGFsbCBzdGlsbCBhcHBsaWVzIGNsZWFuIG9uIHJj MS4KPgo+IEkgYWxzbyBoYXZlIHRoZSBvcHMtPlt1bl1tYXBfcGFnZXMgaW1wbGVtZW50YXRpb24g Zm9yIHRoZSBJbnRlbCBJT01NVQo+IGRyaXZlci4gSSB3aWxsIHBvc3QgdGhlbSBvbmNlIHRoZSBp b21tdS9jb3JlIHBhcnQgZ2V0IGFwcGxpZWQuCgpJIGFsc28gaW1wbGVtZW50IHRob3NlIGNhbGxi YWNrcyBvbiBBUk0gU01NVVYzIGJhc2VkIG9uIHRoaXMgc2VyaWVzLCBhbmQgCnVzZSBkbWFfbWFw X2JlbmNobWFyayB0byBoYXZlIGEgdGVzdCBvbgp0aGUgbGF0ZW5jeSBvZiBtYXAvdW5tYXAgYXMg Zm9sbG93cywgYW5kIGkgdGhpbmsgaXQgcHJvbW90ZXMgbXVjaCBvbiB0aGUgCmxhdGVuY3kgb2Yg bWFwL3VubWFwLiBJIHdpbGwgYWxzbyBwbGFuIHRvIHBvc3QKdGhlIGltcGxlbWVudGF0aW9ucyBm b3IgQVJNIFNNTVVWMyBhZnRlciB0aGlzIHNlcmllcyBhcmUgYXBwbGllZC4KCnQgPSAxKHRocmVh ZCA9IDEpOgogICAgICAgICAgICAgICAgICAgIGJlZm9yZSBvcHQodXMpICAgYWZ0ZXIgb3B0KHVz KQpnPTEoNEsgc2l6ZSkgICAgICAgIDAuMS8xLjMgICAgICAgICAgMC4xLzAuOApnPTIoOEsgc2l6 ZSkgICAgICAgIDAuMi8xLjUgICAgICAgICAgMC4yLzAuOQpnPTQoMTZLIHNpemUpICAgICAgIDAu My8xLjkgICAgICAgICAgMC4xLzEuMQpnPTgoMzJLIHNpemUpICAgICAgIDAuNS8yLjcgICAgICAg ICAgMC4yLzEuNApnPTE2KDY0SyBzaXplKSAgICAgIDEuMC80LjUgICAgICAgICAgMC4yLzIuMApn PTMyKDEyOEsgc2l6ZSkgICAgIDEuOC83LjkgICAgICAgICAgMC4yLzMuMwpnPTY0KDI1Nksgc2l6 ZSkgICAgIDMuNy8xNC44ICAgICAgICAgMC40LzYuMQpnPTEyOCg1MTJLIHNpemUpICAgIDcuMS8x NC43ICAgICAgICAgMC41LzEwLjQKZz0yNTYoMU0gc2l6ZSkgICAgICAxNC4wLzUzLjkgICAgICAg IDAuOC8xOS4zCmc9NTEyKDJNIHNpemUpICAgICAgMC4yLzAuOSAgICAgICAgICAwLjIvMC45Cmc9 MTAyNCg0TSBzaXplKSAgICAgMC41LzEuNSAgICAgICAgICAwLjQvMS4wCgp0ID0gMTAodGhyZWFk ID0gMTApOgogICAgICAgICAgICAgICAgICAgIGJlZm9yZSBvcHQodXMpICAgYWZ0ZXIgb3B0KHVz KQpnPTEoNEsgc2l6ZSkgICAgICAgIDAuMy83LjAgICAgICAgICAgMC4xLzUuOApnPTIoOEsgc2l6 ZSkgICAgICAgIDAuNC82LjcgICAgICAgICAgMC4zLzYuMApnPTQoMTZLIHNpemUpICAgICAgIDAu NS82LjMgICAgICAgICAgMC4zLzUuNgpnPTgoMzJLIHNpemUpICAgICAgIDAuNS84LjMgICAgICAg ICAgMC4yLzYuMwpnPTE2KDY0SyBzaXplKSAgICAgIDEuMC8xNy4zICAgICAgICAgMC4zLzEyLjQK Zz0zMigxMjhLIHNpemUpICAgICAxLjgvMzYuMCAgICAgICAgIDAuMi8yNC4yCmc9NjQoMjU2SyBz aXplKSAgICAgNC4zLzY3LjIgICAgICAgICAxLjIvNDYuNApnPTEyOCg1MTJLIHNpemUpICAgIDcu OC85My43ICAgICAgICAgMS4zLzk0LjIKZz0yNTYoMU0gc2l6ZSkgICAgICAxNC43LzI4MC44ICAg ICAgIDEuOC8xOTEuNQpnPTUxMigyTSBzaXplKSAgICAgIDMuNi8zLjIgICAgICAgICAgMS41LzIu NQpnPTEwMjQoNE0gc2l6ZSkgICAgIDIuMC8zLjEgICAgICAgICAgMS44LzIuNgoKCj4KPiBCZXN0 IHJlZ2FyZHMsCj4gYmFvbHUKPiBfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwo+IGlvbW11IG1haWxpbmcgbGlzdAo+IGlvbW11QGxpc3RzLmxpbnV4LWZvdW5k YXRpb24ub3JnCj4gaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlz dGluZm8vaW9tbXUKPgo+IC4KPgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fCmlvbW11IG1haWxpbmcgbGlzdAppb21tdUBsaXN0cy5saW51eC1mb3VuZGF0 aW9uLm9yZwpodHRwczovL2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5m by9pb21tdQ==