From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792618461; b=qa7jwqV+3HV4T517yCr+F/skyX+r49KYFCDpdXorT0YLQ4CrVXtkBivJMwcqf64GJvxP 5qoZVMr0CMFUa+34TF2HWe1zW5/ytAaXtqUE8XUrEh56PfWNlWKk/x3aIZ+NhKBDrhiYA M2iUjo2LoyqI/HWmy26Tq+qQsM2P/R0XwdlgEnLarz6A/sVu4/a8XxNElqquiGI8ZTqAX UmmCvU3qak/MXKcltsyFDldaMIGFy89elqN5hL7xfENmQEQrw10I3dXixVl9Ba8wMQK+p kKPNX9cwTzvEWhEGAqlVgst+is7bBp4EjRSF8fiAxA+ruaSu2P/HiZgm3Tr1/6CTowg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792618461; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: In-Reply-To:References:MIME-Version:Content-Type: Content-Transfer-Encoding; bh=TEyfm7BQkz3xsJB2bBQBoQAXF84CXluCzEAgd+Y9G0k=; b=O5Nd38Nb07yh5vkg+/DwBkOqsf5zx8VrQ32sXsmyNQoHzFTwkWzK/b7FEQWD7U5Qzofc p6ARf7t7hmp+nCr+yD5jtsQ7lgCl7YAUgbVjYcFwan2ukW/GHFLWFmkNa2tovqd1m6XyC CyctGBUIMsZLfLACSKSWboEQS69qbp58C1tk+LLz1cXwWwOtdEbcsjWXYaMSkrHTNiRQF AS/fym/ZMeCDEeNFDlG1P71Srg17hudcQwPlE4AWqQ8oFMmHeH7EgUx03JUp8nkUoamVz HdjqOOAGM3qPplhxT13mBRzMfkTv16Ih1ehc3FKvUFTTfaPruhcxZTU6I94ldTwzl6Q== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=QKV3LCcM; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E31BC606A319; Wed, 21 Oct 2026 21:34:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=QKV3LCcM Received: by smtp.kernel.org (Postfix) with ESMTPSA id 148991F000C1; Wed, 21 Oct 2026 21:34:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792618460; bh=TEyfm7BQkz3xsJB2bBQBoQAXF84CXluCzEAgd+Y9G0k=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=QKV3LCcMB/U67gnyySXhkXMphhkMS9o+DwlqQgU5sEMJL3rjkqOYq4oSi7F/moNoM 7CEkB+W1WHlWPDWhzJ9ijLnpZaIWz2tpA6NI0K4zbfVfBUmCKjq723f3E0A8Go0j3h ArrgAPEBjng7bGSe7FGANuHiuzdNjnrSNwQgTW9D/SwDMSdBHpZLa2y7wPjAmpTovT JaxIKr111cyvQSpDRkETLOKvyJmwJ7QrCJUC2ZjbKwlffP89zIey4gO/H9iTZx8+sp 4dltL8ZJkqMngg3ethhfInC7rgeR0alBOSZ6JgvuAXbpYlEcZaww17fS024YEI7E0m kOnMqgTdVL6AQ== Date: Wed, 21 Oct 2026 14:34:19 -0700 From: Jakub Kicinski To: Vishnu Santhosh Cc: Stephan Gerhold , Andrew Lunn , "David S. Miller" , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Loic Poulain , Sergey Ryazanov , Johannes Berg , Eric Dumazet , linux-arm-msm@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Deepak Kumar Singh Subject: Re: [PATCH net-next v3 0/2] net: wwan: qcom_bam_dmux: Add restricted DMA pool support Message-ID: <20261021143419.02709eab@kernel.org> In-Reply-To: <20261021-qcom-bam-dmux-vmid-ext-v3-0-cedd1f681102@oss.qualcomm.com> References: <20261021-qcom-bam-dmux-vmid-ext-v3-0-cedd1f681102@oss.qualcomm.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Wed, 21 Oct 2026 12:09:42 +0530 Vishnu Santhosh wrote: > Some Qualcomm SoCs, such as Shikra, run the modem in a separate security > domain with restricted access to system memory. BAM-DMUX DMA mappings > and BAM descriptor FIFOs must therefore be constrained to a designated > memory region that can be shared with the modem. Accesses outside that > region can trigger an XPU violation. ## Form letter - net-next-closed The merge window for Linux v7.4 has begun, and the net-next tree is now closed for new drivers, features, code refactoring and optimizations. We are currently accepting bug fixes only. Please repost when net-next reopens. There is some uncertainty about how long this merge window will last, so please check https://netdev.bots.linux.dev/net-next.html before reposting. net-next _may_ reopen on Nov 2nd. See: https://www.kernel.org/doc/html/next/process/maintainer-netdev.html#development-cycle -- pw-bot: defer pv-bot: closed