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_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 82E11C433E0 for ; Tue, 9 Jun 2020 11:31:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5B6A420812 for ; Tue, 9 Jun 2020 11:31:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728899AbgFILba (ORCPT ); Tue, 9 Jun 2020 07:31:30 -0400 Received: from verein.lst.de ([213.95.11.211]:41974 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728051AbgFILb3 (ORCPT ); Tue, 9 Jun 2020 07:31:29 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id E3C5D68B02; Tue, 9 Jun 2020 13:31:23 +0200 (CEST) Date: Tue, 9 Jun 2020 13:31:23 +0200 From: Christoph Hellwig To: Takashi Iwai Cc: Christoph Hellwig , David Rientjes , "Alex Xu (Hello71)" , alsa-devel@alsa-project.org, bp@alien8.de, hch@infradead.org, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, Pavel Machek , perex@perex.cz, tglx@linutronix.de, tiwai@suse.com, x86@kernel.org Subject: Re: next-0519 on thinkpad x60: sound related? window manager crash Message-ID: <20200609113123.GA547@lst.de> References: <1591545088.74ii116nf2.none@localhost> <20200608061950.GA17476@lst.de> <1591624340.z01ejtod28.none@localhost> <20200609054306.GA9606@lst.de> <20200609084305.GA21671@lst.de> <20200609091727.GA23814@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 09, 2020 at 11:31:20AM +0200, Takashi Iwai wrote: > > > How would be a proper way to get the virtually mapped SG-buffer pages > > > with coherent memory? (Also allowing user-space mmap, too) > > > > dma_mmap_coherent / dma_mmap_attrs for userspace. We don't really > > have a good way for kernel space mappings. > > And that's the missing piece right now... :-< Can you point me to the relevant places (allocation and vmap mostly) so that I can take a look at how to fix this mess? 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=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 5B73FC433E0 for ; Tue, 9 Jun 2020 11:32:25 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 D2A3C206A4 for ; Tue, 9 Jun 2020 11:32:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="RtO/ERbX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D2A3C206A4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 6F4001693; Tue, 9 Jun 2020 13:31:33 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 6F4001693 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1591702343; bh=otMUrX4Pmh3xtQaMkhPj2rF6ziTy5JcY5OKCfoE9StI=; h=Date:From:To:Subject:References:In-Reply-To:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=RtO/ERbXRnH1F3SLn1TssIP9VEkkUx6lyxDhorjZ+utfd/vA70fC4M8Kl/82obhWe +mz+Y413N7z6GvJ7jG0BShv3azlul+7O9uiRgBkYywBP9HQKa6dC3T2y3KxchGeuuM LNTqTXErvgwlxYDimOYeaMl7rMm/FfUPFrb7yoRI= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id F33A7F80278; Tue, 9 Jun 2020 13:31:32 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 9C1BAF8028C; Tue, 9 Jun 2020 13:31:30 +0200 (CEST) Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id E2CE3F800F1 for ; Tue, 9 Jun 2020 13:31:26 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz E2CE3F800F1 Received: by verein.lst.de (Postfix, from userid 2407) id E3C5D68B02; Tue, 9 Jun 2020 13:31:23 +0200 (CEST) Date: Tue, 9 Jun 2020 13:31:23 +0200 From: Christoph Hellwig To: Takashi Iwai Subject: Re: next-0519 on thinkpad x60: sound related? window manager crash Message-ID: <20200609113123.GA547@lst.de> References: <1591545088.74ii116nf2.none@localhost> <20200608061950.GA17476@lst.de> <1591624340.z01ejtod28.none@localhost> <20200609054306.GA9606@lst.de> <20200609084305.GA21671@lst.de> <20200609091727.GA23814@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Cc: alsa-devel@alsa-project.org, x86@kernel.org, hpa@zytor.com, tiwai@suse.com, linux-kernel@vger.kernel.org, "Alex Xu \(Hello71\)" , hch@infradead.org, mingo@redhat.com, bp@alien8.de, Pavel Machek , David Rientjes , tglx@linutronix.de, Christoph Hellwig X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On Tue, Jun 09, 2020 at 11:31:20AM +0200, Takashi Iwai wrote: > > > How would be a proper way to get the virtually mapped SG-buffer pages > > > with coherent memory? (Also allowing user-space mmap, too) > > > > dma_mmap_coherent / dma_mmap_attrs for userspace. We don't really > > have a good way for kernel space mappings. > > And that's the missing piece right now... :-< Can you point me to the relevant places (allocation and vmap mostly) so that I can take a look at how to fix this mess?