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=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 34A56C433E1 for ; Tue, 30 Jun 2020 10:05:43 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (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 07890206CB for ; Tue, 30 Jun 2020 10:05:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 07890206CB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id CB80A86FF0; Tue, 30 Jun 2020 10:05:42 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id OGB1OAlsEQIK; Tue, 30 Jun 2020 10:05:42 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id 284628625F; Tue, 30 Jun 2020 10:05:42 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 0A0F2C0865; Tue, 30 Jun 2020 10:05:42 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 449E7C016E for ; Tue, 30 Jun 2020 10:05:40 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 308A1227A3 for ; Tue, 30 Jun 2020 10:05:40 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ikmEGXJRbmvA for ; Tue, 30 Jun 2020 10:05:39 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from theia.8bytes.org (8bytes.org [81.169.241.247]) by silver.osuosl.org (Postfix) with ESMTPS id 5A18C22744 for ; Tue, 30 Jun 2020 10:05:39 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id D4D6E2A7; Tue, 30 Jun 2020 12:05:37 +0200 (CEST) Date: Tue, 30 Jun 2020 12:05:36 +0200 From: Joerg Roedel To: Maxime Ripard Subject: Re: [PATCH 1/2] iommu/sun50i: Change the readl timeout to the atomic variant Message-ID: <20200630100536.GK28824@8bytes.org> References: <20200628180844.79205-1-maxime@cerno.tech> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200628180844.79205-1-maxime@cerno.tech> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: Chen-Yu Tsai , iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 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="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Sun, Jun 28, 2020 at 08:08:43PM +0200, Maxime Ripard wrote: > The flush_all_tlb call back can be called from an atomic context, so using > readl_poll_timeout that embeds a udelay doesn't work. > > Fixes: 4100b8c229b3 ("iommu: Add Allwinner H6 IOMMU driver") > Signed-off-by: Maxime Ripard Applied both for v5.8, thanks. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu