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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3D347C5DF8C for ; Sat, 22 Aug 2026 19:27:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Sfj+OWwIhuw2DNS2upVZG/n6S86vGwiJwH8bbSs6IOY=; b=3Lx05QzpbSbLCOAIp7P/koMZIH m5crPasTvkmAL2MtAIXvKx2CtlpmSjP83RwEGkDHEfXQ2zdzLjVgGcnAIlWrwVGEVQMvBDAO1nAhR SfnIe5yO12ZY2/gIJhR6ABaXbHcxF/WJ5vFd3AyqZSHC4+7uxyNYtICeiQAmABF2HBt7b/Y3MKWQk xa9yL/ZQ/wdq/gBr6d1pnUTR+qN+OeG1tp4w7zTPsMHFsqk+Z+yNJ/iezZPQ4E05drENrml/xfQHP Dlj8ua6K//IqI5vzIlsMrdgut1MKxDhYwz4U6kq6x/PhrW9fbKuXzeFvk2shTh5BO7u2lDGvJRzep VpL6XiTg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wxrNJ-0000000Ek6A-3ody; Sat, 22 Aug 2026 19:27:29 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wxrNJ-0000000Ek5x-1JQ9; Sat, 22 Aug 2026 19:27:29 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 87E2F43825; Sat, 22 Aug 2026 19:27:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 093E01F000E9; Sat, 22 Aug 2026 19:27:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787426848; bh=Sfj+OWwIhuw2DNS2upVZG/n6S86vGwiJwH8bbSs6IOY=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=FFKH0L/JH8NGSacA/mfb8mDixnuYIAP1iGHz+ajyRYwfpBbjzpqkaK/YCC4ntbT91 h2Qh4a6r3mnc0XIswOaHG3nvokknbe3DeZNb3p7QGiOrm7C9El+3zIoWGGu8QrKRpB uk9/3YWYYPdUU1sSeReVT80ONZiTSOCAHVEEhZHnGPHEp5nXC1DmqzSBY3Btulemlx pcjSHubRFAlbj4GagNhO4f72z3i8vk8/HDML/zMfrTZei3Wht85s40nAMzmzm80mB8 TjHpTUgZhhF7/DoEFjsCmCAimaHbtsEWOCzobikoPrKreDQ0eiG57yI9aSF9I5cv6X Zz4JuVxu3sYNA== Date: Sat, 22 Aug 2026 12:27:27 -0700 From: Jakub Kicinski To: Daniel Pawlik Cc: netdev@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, lorenzo@kernel.org, nbd@nbd.name, sean.wang@mediatek.com, Mark-MC.Lee@mediatek.com, davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, andrew+netdev@lunn.ch, yangshiji66@outlook.com Subject: Re: [PATCH v10 1/2] net: airoha: npu: fix missing streaming DMA mask Message-ID: <20260822122727.4f437bb5@kernel.org> In-Reply-To: <20260820085941.380401-1-pawlik.dan@gmail.com> References: <20260820085941.380401-1-pawlik.dan@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Thu, 20 Aug 2026 10:59:40 +0200 Daniel Pawlik wrote: > The driver calls dma_set_coherent_mask() but never dma_set_mask(), > leaving the streaming DMA mask at the bus default. On the non-coherent > EN7581 platform (Cortex-A53), this causes the NPU mailbox to hang > after approximately 41 calls when using streaming DMA mappings. Can you confirm if patch 2 is still needed after this fix?