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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 BA298C43460 for ; Mon, 17 May 2021 14:43:11 +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 1994461D21 for ; Mon, 17 May 2021 14:43:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1994461D21 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=depni.sinp.msu.ru Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A5B8A6E9B4; Mon, 17 May 2021 14:43:08 +0000 (UTC) Received: from depni-mx.sinp.msu.ru (depni-mx.sinp.msu.ru [213.131.7.21]) by gabe.freedesktop.org (Postfix) with ESMTP id 60CCD6E071; Mon, 17 May 2021 13:09:44 +0000 (UTC) Received: from spider (ip-95-220-118-46.bb.netbynet.ru [95.220.118.46]) by depni-mx.sinp.msu.ru (Postfix) with ESMTPSA id 540D61BF45A; Mon, 17 May 2021 16:10:41 +0300 (MSK) From: Serge Belyshev To: Christoph Hellwig References: <20210326055505.1424432-1-hch@lst.de> <20210326055505.1424432-5-hch@lst.de> <87pmxqiry6.fsf@depni.sinp.msu.ru> <20210517123716.GD15150@lst.de> Date: Mon, 17 May 2021 16:09:42 +0300 In-Reply-To: <20210517123716.GD15150@lst.de> (Christoph Hellwig's message of "Mon, 17 May 2021 14:37:16 +0200") Message-ID: <87lf8dik15.fsf@depni.sinp.msu.ru> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) MIME-Version: 1.0 X-Mailman-Approved-At: Mon, 17 May 2021 14:43:06 +0000 Subject: Re: [Intel-gfx] [PATCH 4/4] i915: fix remap_io_sg to verify the pgprot X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Zijlstra , Daniel Vetter , intel-gfx@lists.freedesktop.org, Chris Wilson , linux-mm@kvack.org, dri-devel@lists.freedesktop.org, Andrew Morton Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Christoph Hellwig writes: > As an ad-hoc experiment: can you replace the call to remap_pfn_range > with remap_pfn_range_notrack (and export it if you build i915 modular) > in remap_io_sg and see if that makes any difference? That worked, thanks -- no artifacts seen. _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx