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=-5.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 1BB0BC433DB for ; Tue, 23 Mar 2021 20:42:29 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 986E7619CB for ; Tue, 23 Mar 2021 20:42:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 986E7619CB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=shipmail.org Authentication-Results: mail.kernel.org; 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Tue, 23 Mar 2021 21:42:23 +0100 (CET) Received: by ste-pvt-msa2.bahnhof.se (Postfix) with ESMTPA id 175623F700; Tue, 23 Mar 2021 21:42:21 +0100 (CET) Received: from [192.168.0.209] (unknown [192.198.151.43]) by mail1.shipmail.org (Postfix) with ESMTPSA id D723836062E; Tue, 23 Mar 2021 21:42:20 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=shipmail.org; s=mail; t=1616532141; bh=iPJ77EGHgOIrO9GhucTb28ntff/+vJnaRdy9R+OY4lo=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=sPJS18NN29rFWkVlri0remQJEnGvAMc5uNaAzOG+2DZyFbsbL6HT+f7bKV/53yxK4 WnheLIuBVVbHA0XdXpkcfyDzrml2Z5u1SRDpR8+LtCmOWIm3FfzrkjBRAo2JodoDPC 6eScF9gFQYOGN4xc1NDIGF120IZ74jlJsnN5mh2M= Subject: Re: [RFC PATCH 1/2] mm,drm/ttm: Block fast GUP to TTM huge pages To: "Williams, Dan J" , "dri-devel@lists.freedesktop.org" References: <20210321184529.59006-1-thomas_os@shipmail.org> <20210321184529.59006-2-thomas_os@shipmail.org> From: =?UTF-8?Q?Thomas_Hellstr=c3=b6m_=28Intel=29?= Message-ID: Date: Tue, 23 Mar 2021 21:42:18 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "jgg@nvidia.com" , "airlied@linux.ie" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "akpm@linux-foundation.org" , "christian.koenig@amd.com" Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Ck9uIDMvMjMvMjEgODo1MiBQTSwgV2lsbGlhbXMsIERhbiBKIHdyb3RlOgo+IE9uIFN1biwgMjAy MS0wMy0yMSBhdCAxOTo0NSArMDEwMCwgVGhvbWFzIEhlbGxzdHLDtm0gKEludGVsKSB3cm90ZToK Pj4gVFRNIHNldHMgdXAgaHVnZSBwYWdlLXRhYmxlLWVudHJpZXMgYm90aCB0byBzeXN0ZW0tIGFu ZCBkZXZpY2UKPj4gbWVtb3J5LAo+PiBhbmQgd2UgZG9uJ3Qgd2FudCBndXAgdG8gYXNzdW1lIHRo ZXJlIGFyZSBhbHdheXMgdmFsaWQgYmFja2luZyBzdHJ1Y3QKPj4gcGFnZXMgZm9yIHRoZXNlLiBG b3IgUFRFcyB0aGlzIGlzIGhhbmRsZWQgYnkgc2V0dGluZyB0aGUgcHRlX3NwZWNpYWwKPj4gYml0 LAo+PiBidXQgZm9yIHRoZSBodWdlIFBVRHMgYW5kIFBNRHMsIHdlIGhhdmUgbmVpdGhlciBwbWRf c3BlY2lhbCBub3IKPj4gcHVkX3NwZWNpYWwuIE5vcm1hbGx5LCBodWdlIFRUTSBlbnRyaWVzIGFy ZSBpZGVudGlmaWVkIGJ5IGxvb2tpbmcgYXQKPj4gdm1hX2lzX3NwZWNpYWxfaHVnZSgpLCBidXQg ZmFzdCBndXAgY2FuJ3QgZG8gdGhhdCwgc28gYXMgYW4KPj4gYWx0ZXJuYXRpdmUKPj4gZGVmaW5l IF9kZXZtYXAgZW50cmllcyBmb3Igd2hpY2ggdGhlcmUgYXJlIG5vIGJhY2tpbmcgZGV2X3BhZ2Vt YXAgYXMKPj4gc3BlY2lhbCwgdXBkYXRlIGRvY3VtZW50YXRpb24gYW5kIG1ha2UgaHVnZSBUVE0g ZW50cmllcyBfZGV2bWFwLAo+PiBhZnRlcgo+PiB2ZXJpZnlpbmcgdGhhdCB0aGVyZSBpcyBubyBi YWNraW5nIGRldl9wYWdlbWFwLgo+IFBsZWFzZSBkbyBub3QgYWJ1c2UgcHttLHV9ZF9kZXZtYXAg bGlrZSB0aGlzLiBJJ20gaW4gdGhlIHByb2Nlc3Mgb2YKPiByZW1vdmluZyBnZXRfZGV2cGFnZW1h cCgpIGZyb20gdGhlIGd1cC1mYXN0IHBhdGggWzFdLiBJbnN0ZWFkIHRoZXJlCj4gc2hvdWxkIGJl IHNwYWNlIGZvciBwe20sdX1kX3NwZWNpYWwgaW4gdGhlIHBhZ2UgdGFibGUgZW50cmllcyAoYXQg bGVhc3QKPiBmb3IgeDg2LTY0KS4gU28gdGhlIGZpeCBpcyB0byByZW1vdmUgdGhhdCBvbGQgYXNz dW1wdGlvbiB0aGF0IGh1Z2UKPiBwYWdlcyBjYW4gbmV2ZXIgYmUgc3BlY2lhbC4KPgo+IFsxXToK PiBodHRwOi8vbG9yZS5rZXJuZWwub3JnL3IvMTYxNjA0MDUwODY2LjE0NjM3NDIuNzc1OTUyMTUx MDM4MzU1MTA1NS5zdGdpdEBkd2lsbGlhMi1kZXNrMy5hbXIuY29ycC5pbnRlbC5jb20KPgpIbW0s IHllcyB3aXRoIHRoYXQgcGF0Y2ggaXQgd2lsbCBvYnZpb3VzbHkgbm90IHdvcmsgYXMgaW50ZW5k ZWQuCgpHaXZlbiB0aGF0LCBJIHRoaW5rIHdlJ2xsIG5lZWQgdG8gZGlzYWJsZSB0aGUgVFRNIGh1 Z2UgcGFnZXMgZm9yIG5vdyAKdW50aWwgd2UgY2FuIHNvcnQgb3V0IGFuZCBhZ3JlZSBvbiB1c2lu ZyBhIHBhZ2UgdGFibGUgZW50cnkgYml0LgoKVGhhbmtzLAoKL1Rob21hcwoKCl9fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxp c3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNr dG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo=