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=-8.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 14B1FC4361B for ; Thu, 17 Dec 2020 09:39:35 +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 6FC23233FB for ; Thu, 17 Dec 2020 09:39:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6FC23233FB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.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 88551183D; Thu, 17 Dec 2020 10:38:42 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 88551183D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1608197972; bh=usF5T0a6TeCyXbeFkOPEt+b9wmq49qSt4ptM1aDkhms=; h=Date:From:To:Subject:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=OI+r6l6/hQo01MR5paToivZ0JjT+5PXelnVmU/rMIM4VYvMebVm/P0xGAu6mVZkw/ BY4SNO2/GOXyDMkPMWBAQMPG/9CvoNFEBka6lNuQeWJz4WdqRO3Glg0hL2mUjm0wb/ z9bep7YFWBToix0FHMMlTPR9Rcynu5zVK5E3tnHg= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 309FFF80278; Thu, 17 Dec 2020 10:38:42 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id B7C1FF8027B; Thu, 17 Dec 2020 10:38:40 +0100 (CET) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id AF036F80278 for ; Thu, 17 Dec 2020 10:38:34 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz AF036F80278 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 64863AC7B; Thu, 17 Dec 2020 09:38:29 +0000 (UTC) Date: Thu, 17 Dec 2020 10:38:29 +0100 Message-ID: From: Takashi Iwai To: Robin Gong Subject: Re: [PATCH v1 ] ALSA: core: memalloc: add page alignment for iram In-Reply-To: <1608221747-3474-1-git-send-email-yibin.gong@nxp.com> References: <1608221747-3474-1-git-send-email-yibin.gong@nxp.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, shengjiu.wang@nxp.com, tiwai@suse.com, pierre-louis.bossart@linux.intel.com, gustavoars@kernel.org, akpm@linux-foundation.org, xiang@kernel.org 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 Thu, 17 Dec 2020 17:15:47 +0100, Robin Gong wrote: > > Since mmap for userspace is based on page alignment, add page alignment > for iram alloc from pool, otherwise, some good data located in the same > page of dmab->area maybe touched wrongly by userspace like pulseaudio. > > Signed-off-by: Robin Gong Thanks, applied now with Cc-to-stable. Takashi 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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 C9C43C4361B for ; Thu, 17 Dec 2020 09:39:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 89E31233FB for ; Thu, 17 Dec 2020 09:39:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726840AbgLQJjM (ORCPT ); Thu, 17 Dec 2020 04:39:12 -0500 Received: from mx2.suse.de ([195.135.220.15]:46300 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725871AbgLQJjL (ORCPT ); Thu, 17 Dec 2020 04:39:11 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 64863AC7B; Thu, 17 Dec 2020 09:38:29 +0000 (UTC) Date: Thu, 17 Dec 2020 10:38:29 +0100 Message-ID: From: Takashi Iwai To: Robin Gong Cc: perex@perex.cz, tiwai@suse.com, akpm@linux-foundation.org, xiang@kernel.org, pierre-louis.bossart@linux.intel.com, gustavoars@kernel.org, shengjiu.wang@nxp.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v1 ] ALSA: core: memalloc: add page alignment for iram In-Reply-To: <1608221747-3474-1-git-send-email-yibin.gong@nxp.com> References: <1608221747-3474-1-git-send-email-yibin.gong@nxp.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 17 Dec 2020 17:15:47 +0100, Robin Gong wrote: > > Since mmap for userspace is based on page alignment, add page alignment > for iram alloc from pool, otherwise, some good data located in the same > page of dmab->area maybe touched wrongly by userspace like pulseaudio. > > Signed-off-by: Robin Gong Thanks, applied now with Cc-to-stable. Takashi