From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 850C51D514F; Sun, 27 Apr 2025 06:40:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745736029; cv=none; b=A8QyPB0TpPDeVmj73Q8C/p3I24qtJabshczumU+Ac7tamcyWbPcjiosWpBUurlZvYHq9mMNWXCi33n2bbsZ2OjeG4O0c1odxlN3u+IavTNPQeRZ+mAhYnbh6Un+LhYVApRp5gzQDUlitc9HqUizfDs4PQcaTPkCn5Cfyt2l/KA0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745736029; c=relaxed/simple; bh=jHRCYwqkDeGnsoQZjCZlk/VB00dZCE9Xt/gFt3+3Ekg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=jV+m+jgJsFAyroMdGlz4lxmwxrEU6U9bZx94mqdgJXvlJx5KOzoXf569fAK4savAWa7PXqEWWAvxsakBcqV/Glaazk4HKMeIvVL2LVFsRUNRtz3jsrl2QZCuFBXyR2vuc9iGjy/nqQUkr3zPGQNSpoD0irDYtZ6nGxALNALqlvQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=HiEDRoEE; arc=none smtp.client-ip=198.175.65.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="HiEDRoEE" 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: Crjz16ZST92ARlRBkfGwSg== X-CSE-MsgGUID: TkoKrUu6SW+MMftejKbeww== X-IronPort-AV: E=McAfee;i="6700,10204,11415"; a="47430755" X-IronPort-AV: E=Sophos;i="6.15,243,1739865600"; d="scan'208";a="47430755" 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 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: 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 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