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=-5.0 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 1A49AC2D0A8 for ; Wed, 30 Sep 2020 06:19:29 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (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 8C847206A5 for ; Wed, 30 Sep 2020 06:19:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="m+rSaFzK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8C847206A5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.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 silver.osuosl.org (Postfix) with ESMTP id 2C9D8203D0; Wed, 30 Sep 2020 06:19:28 +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 6koEMoj0gUFC; Wed, 30 Sep 2020 06:19:26 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by silver.osuosl.org (Postfix) with ESMTP id BBE982041E; Wed, 30 Sep 2020 06:19:26 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id A543DC0889; Wed, 30 Sep 2020 06:19:26 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 3E2B6C0051 for ; Wed, 30 Sep 2020 06:19:26 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 323AE871AE for ; Wed, 30 Sep 2020 06:19:26 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 02EB+y9sR94i for ; Wed, 30 Sep 2020 06:19:25 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mail-pl1-f194.google.com (mail-pl1-f194.google.com [209.85.214.194]) by hemlock.osuosl.org (Postfix) with ESMTPS id 99707871A8 for ; Wed, 30 Sep 2020 06:19:25 +0000 (UTC) Received: by mail-pl1-f194.google.com with SMTP id y20so375922pll.12 for ; Tue, 29 Sep 2020 23:19:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=HGwliGdnOsvbFNk+ILVrrA6wWvnB3mx6++Vzoqu61bk=; b=m+rSaFzK3MX0An+UuLThLPSMN2e3pp1A3HkBG1Xi/+3l41Ax48PGeRUpvIjIgMZfbc j9iNHBqumdJngqmUpcron/qJZstDOh5dg9PQR0+eZK3hris7o7mIYSd6VRce+gTkHWi2 o9GYsDLYH1+IYLb7aihaxZD5nDAWR288tiW0YYwJW/lktXvQAEhgSo+evVkWbtYo0a6A 2n6gSqgHNg8y8iszxoRVTAdTEK71669BPnqUcjqYQFXPTptfSGZZRq+IkNm2eW3P669a O8qaXsbUMdoQXha229tmCWBGsPbeRfJvDPXIvdvAZUgo5SZVrMJZfmVs4+3fISDwz0Q9 1lAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to:user-agent; bh=HGwliGdnOsvbFNk+ILVrrA6wWvnB3mx6++Vzoqu61bk=; b=EPcWs4P+bSqvQZFyX7Qe9s+qGT5DCAVIqoWeAjnVmAGDUN0BWp6GdiQb0JJmwTtJ+L WVg6gHdTnqR3bG35seayLkBSwn+pvztaED2vUFg/sHgR9J5tLkt+RXRyssQ942z4pL2X S6MWpzp5WHUL5/R7xfVuYnH+eynDjxm1YtE2hRYd1hncOdSLYd+EijauFmp+QcP2VJq3 fOjz/PVCAbolR3rVTnhOKmpUJHZgIL+j0Z5JDuyEAoYcfKw82aqBkD54BFT4NoqE2r6Z /+aPlAQsPawAyd/U85iF8y6Fx69KJycAS8pO3paFgjkfMHALuuos5yqoAuQn0/wxHR+l xd/g== X-Gm-Message-State: AOAM532gOrBysjbUjBB7cfLbMmyoZUeowr8ekMOPY+Qo0KH3dl6z1S3I IPi01lKZg3Xk19/advv6ofg= X-Google-Smtp-Source: ABdhPJwEt9ZQYItIyIuKN4n6x9OjE+XcTkQKL8Bs9Yejup2yt8SsrqVgrOzpCQiAQu0cBLYAjAFWBg== X-Received: by 2002:a17:90a:9d82:: with SMTP id k2mr1165283pjp.197.1601446765072; Tue, 29 Sep 2020 23:19:25 -0700 (PDT) Received: from Asurada-Nvidia (thunderhill.nvidia.com. [216.228.112.22]) by smtp.gmail.com with ESMTPSA id n9sm822737pgi.2.2020.09.29.23.19.24 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 29 Sep 2020 23:19:24 -0700 (PDT) Date: Tue, 29 Sep 2020 23:13:52 -0700 From: Nicolin Chen To: Dmitry Osipenko Subject: Re: [PATCH v2 2/3] iommu/tegra-smmu: Rework .probe_device and .attach_dev Message-ID: <20200930061351.GA16460@Asurada-Nvidia> References: <20200930003013.31289-1-nicoleotsuka@gmail.com> <20200930003013.31289-3-nicoleotsuka@gmail.com> <75514da5-e63a-9e51-8376-abbd12c324d1@gmail.com> <20200930054900.GG31821@Asurada-Nvidia> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) Cc: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, krzk@kernel.org, jonathanh@nvidia.com, thierry.reding@gmail.com, linux-tegra@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="utf-8" Content-Transfer-Encoding: base64 Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" T24gV2VkLCBTZXAgMzAsIDIwMjAgYXQgMDk6MTA6MzhBTSArMDMwMCwgRG1pdHJ5IE9zaXBlbmtv IHdyb3RlOgo+IDMwLjA5LjIwMjAgMDg6NDksIE5pY29saW4gQ2hlbiDQv9C40YjQtdGCOgo+ID4g T24gV2VkLCBTZXAgMzAsIDIwMjAgYXQgMDg6MTE6NTJBTSArMDMwMCwgRG1pdHJ5IE9zaXBlbmtv IHdyb3RlOgo+ID4+IDMwLjA5LjIwMjAgMDM6MzAsIE5pY29saW4gQ2hlbiDQv9C40YjQtdGCOgo+ ID4+PiArCS8qIEFuIGludmFsaWQgbWMgcG9pbnRlciBtZWFucyBtYyBhbmQgc21tdSBkcml2ZXJz IGFyZSBub3QgcmVhZHkgKi8KPiA+Pj4gKwlpZiAoSVNfRVJSX09SX05VTEwobWMpKQo+ID4+Cj4g Pj4gdGVncmFfZ2V0X21lbW9yeV9jb250cm9sbGVyKCkgZG9lc24ndCByZXR1cm4gTlVMTC4KPiA+ IAo+ID4gV2VsbCwgSSBkb24ndCB3YW50IHRvIGFzc3VtZSB0aGF0IGl0J2QgZG8gdGhhdCBmb3Jl dmVyLCBhbmQgdGhlCj4gPiBOVUxMIGNoZWNrIG9mIElTX0VSUl9PUl9OVUxMIGlzIG1hcmtlZCAi dW5saWtlbHkiIHNvIGl0IGRvZXNuJ3QKPiA+IGh1cnQgdG8gaGF2ZS4KPiA+IAo+IAo+IEkgZG9u J3Qgc2VlIGFueSByZWFzb25zIHdoeSBpdCB3b24ndCBkbyB0aGF0IGZvcmV2ZXIuCj4gCj4gU2Vj b25kbHksIHB1YmxpYyBmdW5jdGlvbiBjYW4ndCBiZSBjaGFuZ2VkIHJhbmRvbWx5IHdpdGhvdXQg dXBkYXRpbmcgYWxsCj4gdGhlIGNhbGxlcnMuCj4gCj4gSGVuY2UgdGhlcmUgaXMgbm8gbmVlZCB0 byBoYW5kbGUgY2FzZXMgdGhhdCBjYW4ndCBldmVyIGhhcHBlbiBhbmQgaXQKPiBodXJ0cyByZWFk YWJpbGl0eSBvZiB0aGUgY29kZSArIG9yaWdpbmFsIGVycm9yIGNvZGUgaXMgbWlzc2VkLgoKSSBk b24ndCBxdWl0ZSB1bmRlcnN0YW5kIHdoeSBhbiBleHRyYSAiX09SX05VTEwiIHdvdWxkIGh1cnQK cmVhZGFiaWxpdHkuLi4uYnV0IEknZCB0YWtlIGEgc3RlcCBiYWNrIGFuZCB1c2UgSVNfRVJSKCku Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmlvbW11IG1h aWxpbmcgbGlzdAppb21tdUBsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczovL2xpc3Rz LmxpbnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5mby9pb21tdQ==