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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_MUTT 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 E7496C43613 for ; Thu, 20 Jun 2019 10:51:57 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (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 BEE882082C for ; Thu, 20 Jun 2019 10:51:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BEE882082C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 8E60AB9E; Thu, 20 Jun 2019 10:51:57 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 82780255 for ; Thu, 20 Jun 2019 10:51:56 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from newverein.lst.de (verein.lst.de [213.95.11.211]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 16F55822 for ; Thu, 20 Jun 2019 10:51:56 +0000 (UTC) Received: by newverein.lst.de (Postfix, from userid 2407) id 558CF68B20; Thu, 20 Jun 2019 12:51:24 +0200 (CEST) Date: Thu, 20 Jun 2019 12:51:24 +0200 From: Christoph Hellwig To: Jason Gunthorpe Subject: Re: use exact allocation for dma coherent memory Message-ID: <20190620105124.GA25233@lst.de> References: <20190614134726.3827-1-hch@lst.de> <20190617082148.GF28859@kadam> <20190617083342.GA7883@lst.de> <20190619162903.GF9360@ziepe.ca> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190619162903.GF9360@ziepe.ca> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: Maxime Ripard , Joonas Lahtinen , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, Christoph Hellwig , devel@driverdev.osuosl.org, linux-s390@vger.kernel.org, linux-rdma@vger.kernel.org, David Airlie , Potnuri Bharat Teja , Dan Carpenter , linux-media@vger.kernel.org, Intel Linux Wireless , intel-gfx@lists.freedesktop.org, Maarten Lankhorst , Jani Nikula , Ian Abbott , Rodrigo Vivi , Sean Paul , "moderated list:ARM PORT" , netdev@vger.kernel.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, H Hartley Sweeten , iommu@lists.linux-foundation.org, Daniel Vetter X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 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 Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org T24gV2VkLCBKdW4gMTksIDIwMTkgYXQgMDE6Mjk6MDNQTSAtMDMwMCwgSmFzb24gR3VudGhvcnBl IHdyb3RlOgo+ID4gWWVzLiAgVGhpcyB3aWxsIGJsb3cgdXAgYmFkbHkgb24gbWFueSBwbGF0Zm9y bXMsIGFzIHNxLT5xdWV1ZQo+ID4gbWlnaHQgYmUgdm1hcHBlZCwgaW9yZW1hcHBlZCwgY29tZSBm cm9tIGEgcG9vbCB3aXRob3V0IHBhZ2UgYmFja2luZy4KPiAKPiBHYWgsIHRoaXMgYWRkciBnZXRz IGZlZCBpbnRvIGlvX3JlbWFwX3Bmbl9yYW5nZS9yZW1hcF9wZm5fcmFuZ2UgdG9vLi4KPiAKPiBQ b3RudXJpLCB5b3Ugc2hvdWxkIGZpeCB0aGlzLi4gCj4gCj4gWW91IHByb2JhYmx5IG5lZWQgdG8g dXNlIGRtYV9tbWFwX2Zyb21fZGV2X2NvaGVyZW50KCkgaW4gdGhlIG1tYXAgPwoKVGhlIGZ1bmN0 aW9uIHRvIHVzZSBpcyBkbWFfbW1hcF9jb2hlcmVudCwgZG1hX21tYXBfZnJvbV9kZXZfY29oZXJl bnQgaXMKanVzdCBhbiBpbnRlcm5hbCBoZWxwZXIuCgpUaGF0IGJlacWLIHNhaWQgdGhlIGRyaXZl cnMvaW5maW5pYmFuZCBjb2RlIGhhcyBhIGxvdCBvZgoqcmVtYXBfcGZuX3JhbmdlLCBhbmQgYSBs b3Qgb2YgdGhlbSBsb29rIGxpa2UgdGhleSBtaWdodCBiZSBmb3IKRE1BIG1lbW9yeS4KX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KaW9tbXUgbWFpbGluZyBs aXN0CmlvbW11QGxpc3RzLmxpbnV4LWZvdW5kYXRpb24ub3JnCmh0dHBzOi8vbGlzdHMubGludXhm b3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2lvbW11