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 82BFDC369D5 for ; Sun, 27 Apr 2025 07:02:44 +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:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=VI/EBoCa85mw/Z4MXqSMf+49eT1KYWHHQDL6xNlSVc8=; b=xXfk2gZ8YbYe+asHmkOzUXF4mu yD7cm+ajrLUDuKlOu/PFfr9n7p9+YdRlLHSRI2wCkR8SEl0ofKVaUzA24exTiW0AglK6/INPP95cT S6uVyOndGaZsGedoBaVtHb2qChUaZae+bqF5NxxHyGLBWXeATc9RTEZyuyUP4OsLthhtFd0ttvv+n PKgf+AFHXejuEiqoM4G//Ai+OtPbVO93Pcn4S7caMntDhuXDZ3E1ibI8zRbaTjjo9RANEbS/wDpl7 A4ZYx13dFK0cm2m2jFGMzHfQYNzJW7I/ysKWqG25Td1M3l4jLJmODj+5RPAXFecNQ5snhdlga79OZ Lb/qYe/g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u8w25-000000033yo-1vak; Sun, 27 Apr 2025 07:02:33 +0000 Received: from mgamail.intel.com ([198.175.65.16]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u8vgi-000000031Xb-21D1 for linux-arm-kernel@lists.infradead.org; Sun, 27 Apr 2025 06:40:29 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1745736029; x=1777272029; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=jHRCYwqkDeGnsoQZjCZlk/VB00dZCE9Xt/gFt3+3Ekg=; b=HiEDRoEEJt68T4S/kASoKDSrb3P9E7jpXeLzE7/KWdyArGS6lN+MKLH+ Rwy1++I15gldIUQZgEaWj3MdyeYZFD96NE3vG88ElOwTL/GmbRgiEo1sK FIPKLmndus56uqgPrxip3T2QlhVEw8bPi/zvceGHIQ/v8Sbk6mUyjyM26 FwP6f2m8CxvNEAlgwWVHjBNG6YNhJAvDIOblEr0YsazxnAYodkw5CJBDM d2Ivy3mwVFpYYKNZU+FljIva/8WohXo4ac2FpK0+nqIUuI50wfQOOLuYM tbkJ1PAIlOTHLay1mgLpo+FIdvWSuHPlAoMUz8TiEBeg5UfzQ7B/8zzvP w==; X-CSE-ConnectionGUID: dWLHFVNcT5er0ecBJ4zO9Q== X-CSE-MsgGUID: nRUrleonTCm5NWSbtQZzMQ== X-IronPort-AV: E=McAfee;i="6700,10204,11415"; a="47430750" X-IronPort-AV: E=Sophos;i="6.15,243,1739865600"; d="scan'208";a="47430750" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Apr 2025 23:40:28 -0700 X-CSE-ConnectionGUID: WKkjJoVMRdmCZIfMb9eS0Q== X-CSE-MsgGUID: wDOai0I1Qz+zMkODB65DXA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,243,1739865600"; d="scan'208";a="133731606" Received: from allen-sbox.sh.intel.com (HELO [10.239.159.30]) ([10.239.159.30]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Apr 2025 23:40:22 -0700 Message-ID: <43a93c81-3e7f-46cc-bf93-5e36cbf04b8f@linux.intel.com> Date: Sun, 27 Apr 2025 14:36:13 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 03/22] iommufd/viommu: Allow driver-specific user data for a vIOMMU object To: Nicolin Chen , jgg@nvidia.com, kevin.tian@intel.com, corbet@lwn.net, will@kernel.org Cc: bagasdotme@gmail.com, robin.murphy@arm.com, joro@8bytes.org, thierry.reding@gmail.com, vdumpa@nvidia.com, jonathanh@nvidia.com, shuah@kernel.org, jsnitsel@redhat.com, nathan@kernel.org, peterz@infradead.org, yi.l.liu@intel.com, mshavit@google.com, praan@google.com, zhangzekun11@huawei.com, iommu@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, linux-kselftest@vger.kernel.org, patches@lists.linux.dev, mochs@nvidia.com, alok.a.tiwari@oracle.com, vasant.hegde@amd.com References: <7031ae5ab6f625e73dbd51b074c2ff8a9923c731.1745646960.git.nicolinc@nvidia.com> Content-Language: en-US From: Baolu Lu In-Reply-To: <7031ae5ab6f625e73dbd51b074c2ff8a9923c731.1745646960.git.nicolinc@nvidia.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250426_234028_567338_82919DB9 X-CRM114-Status: UNSURE ( 6.23 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 4/26/25 13:57, Nicolin Chen wrote: > The new type of vIOMMU for tegra241-cmdqv driver needs a driver-specific > user data. So, add data_len/uptr to the iommu_viommu_alloc uAPI and pass > it in via the viommu_alloc iommu op. > > Reviewed-by: Jason Gunthorpe > Signed-off-by: Nicolin Chen Reviewed-by: Lu Baolu