From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (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 442664C8E for ; Wed, 2 Apr 2025 12:34:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743597301; cv=pass; b=IK39UaEiwvFKivDPS2KogsU/JKMMnPIyLo9o/T4vhENPBX/oMiHgTamSZ+csnVtRyzb+DaI6cQv2BBLUMBTMC6DjPAdg8GE7khelCZbhgI+vsr4opZNKRKXU7kvKQ+vqvlT0BRzmYxXssF+ZseQcLFJ5r6wXzbJJOchGqn0X6DY= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743597301; c=relaxed/simple; bh=PA4CseUS5Q/gHiPS+1SfqIiV9hM6Ria+G9qY0DvDukY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=L1w/67wSSsWkVAJWAftY8p0DfqXVHGDuJVMPVaeHqS+bE2aTWKdGs+yVabx0gYtUBnz2PQMEcO/12YBRnccsqvkES+OCetmyEoZ1mCn7N3yd3Lo25FjM50ToKL5WopmFvuzm13wZmGIHbFjksegFEzFBtuThK/nB9gGlum67/qo= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=dmitry.osipenko@collabora.com header.b=IyZ00P8C; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=dmitry.osipenko@collabora.com header.b="IyZ00P8C" ARC-Seal: i=1; a=rsa-sha256; t=1743597277; cv=none; d=zohomail.com; s=zohoarc; b=STaBJNr4rZBo8f01c6VRqrJWEa0Y6jLfwmOHdlCvjodQKacGTfeaEE7N5YlXonxCccgYZ4HEq7s1mRNJDTe7NOVVjoNJReZJ7Z64g+qyWraTupVXUcU5zppU2Shmd2soFlyTwTAtME7D5npLiqVetN+ywpYqxoT+BoaaG17vcFA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1743597277; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=1KX7JQi6EbzwxEG4xd90S9IXnOU37kajAaOpaq/ajeQ=; b=Ne5sMX5Z95USWS5DMV7uKspCnRByCk51Z6WBz9V65lkQ/I++oArYVEuEJ3aB0OdZiw2lABgTXDq+igo6cQc8CVhrCYyX4mCKA2aUy2plEVGNVT8m/Y9qIBfKA7CQPZhsyXdUiQ0pa5b9sohZ6unPaILhdroDkmsIsqFskb4oeGw= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=dmitry.osipenko@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1743597277; s=zohomail; d=collabora.com; i=dmitry.osipenko@collabora.com; h=Message-ID:Date:Date:MIME-Version:Subject:Subject:To:To:Cc:Cc:References:From:From:In-Reply-To:Content-Type:Content-Transfer-Encoding:Message-Id:Reply-To; bh=1KX7JQi6EbzwxEG4xd90S9IXnOU37kajAaOpaq/ajeQ=; b=IyZ00P8CTrqdu6kCoQM8fd5GvRu8kjnC1RpMZznrTwGNp2DYkVbMXMPbPplrXu6F RSRoS7MOiMkcbvklCEMqDdstjlherVOurFLhFgXlg+my5abvLXcurVmGuqK586T8xky Q1ZfUfihpvqr6pu98D1ldAZVGwQx5uWiH0vp3HIs= Received: by mx.zohomail.com with SMTPS id 1743597273931232.0685945330315; Wed, 2 Apr 2025 05:34:33 -0700 (PDT) Message-ID: <975582a3-313b-4989-aac2-c3b309ba55b6@collabora.com> Date: Wed, 2 Apr 2025 15:34:28 +0300 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 7/7] drm/virtio: implement userptr: add interval tree To: "Huang, Honglei1" , David Airlie , Gerd Hoffmann , Gurchetan Singh , Chia-I Wu , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Simona Vetter , Rob Clark , Huang Rui Cc: dri-devel@lists.freedesktop.org, virtualization@lists.linux.dev, linux-kernel@vger.kernel.org, Demi Marie Obenour References: <20250321080029.1715078-1-honglei1.huang@amd.com> <20250321080029.1715078-8-honglei1.huang@amd.com> <810789ec-c034-4bdd-961a-f49c67336e45@collabora.com> <6e796751-86f3-42e5-b0a6-3a3602d3af13@amd.com> From: Dmitry Osipenko Content-Language: en-US In-Reply-To: <6e796751-86f3-42e5-b0a6-3a3602d3af13@amd.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ZohoMailClient: External On 4/2/25 04:53, Huang, Honglei1 wrote: > > On 2025/3/30 19:57, Dmitry Osipenko wrote: >> If the purpose of this feature is to dedup usrptr BOs of a the single >> process/application, can this can be done in userspace? I assume it can be done in userspace, don't see why it needs to be in kernel. -- Best regards, Dmitry