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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 C1900C369B2 for ; Mon, 14 Apr 2025 09:03:47 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3956610E4F4; Mon, 14 Apr 2025 09:03:47 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=bootlin.com header.i=@bootlin.com header.b="h2ibYs9n"; dkim-atps=neutral Received: from mslow3.mail.gandi.net (mslow3.mail.gandi.net [217.70.178.249]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8E72110E4F4 for ; Mon, 14 Apr 2025 09:03:43 +0000 (UTC) Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::222]) by mslow3.mail.gandi.net (Postfix) with ESMTP id 22F365840A4 for ; Mon, 14 Apr 2025 08:17:32 +0000 (UTC) Received: by mail.gandi.net (Postfix) with ESMTPSA id 490B54314D; Mon, 14 Apr 2025 08:17:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1744618651; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TaJd3GfmIN1FF9Nfj5/3nKeIWUdNKoVByIZIbP92ZZs=; b=h2ibYs9nUqdmwXSfBkha5wwKX89e0Na2JsReubQd38M98wrSVDTX/1v18O9D0IcbkD7Iv2 VifJvoIxVm7C7tmQF2yeF7Wgtwn/b3JU9zuvcf5G+uh6U2PSbw0AO3Iv0DcJeMzdIDGDk/ 5Z7ZiRu9YzVaDmeh/Z8+YQCFutv458m3+AuAb0xY+YX9vmG5cH43GwfyKIbt5s/jxfnAkv +OrMIlZTEvrEIP9y1m8wUyyWwZ2iAiZBs/ahOy2+3ujAaZ+znrW6SRtYyCRrv9zp+8lV79 gxvpZn8Vueb7yhZIDxZ3lMMrjxkw4yP43zpdNcKf/bXgU2fUfUoHtM3x1aKDjg== Date: Mon, 14 Apr 2025 10:17:29 +0200 From: Thomas Petazzoni To: Christian =?UTF-8?B?S8O2bmln?= Cc: Bastien Curutchet , Sumit Semwal , Greg Kroah-Hartman , linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/3] uio/dma-buf: Give UIO users access to DMA addresses. Message-ID: <20250414101729.598c1422@windsurf> In-Reply-To: <45bbee88-0446-4773-a4b6-d19a1747c43f@amd.com> References: <20250410-uio-dma-v1-0-6468ace2c786@bootlin.com> <09a5beeb-bae3-4a00-9aff-66adf68064e6@amd.com> <20250410214307.361e373f@windsurf> <60e2d844-418a-4bde-b6ef-76d10448d5ec@bootlin.com> <45bbee88-0446-4773-a4b6-d19a1747c43f@amd.com> Organization: Bootlin X-Mailer: Claws Mail 4.3.0 (GTK 3.24.43; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-GND-State: clean X-GND-Score: -100 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgddvvddttdehucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuifetpfffkfdpucggtfgfnhhsuhgsshgtrhhisggvnecuuegrihhlohhuthemuceftddunecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpeffhffvvefukfgjfhhoofggtgfgsehtqhertdertdejnecuhfhrohhmpefvhhhomhgrshcurfgvthgriiiiohhnihcuoehthhhomhgrshdrphgvthgriiiiohhnihessghoohhtlhhinhdrtghomheqnecuggftrfgrthhtvghrnhepheduteeufeekieevieegueegiefgvdevhefggfdutdeiuedvtdfgledvgeevleeinecuffhomhgrihhnpegsohhothhlihhnrdgtohhmnecukfhppedvrgdtvdemkeegfeegmeelfhdtleemvdektddumeefsgelmeejsggtfhemheehleehmegvfhefvgenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpedvrgdtvdemkeegfeegmeelfhdtleemvdektddumeefsgelmeejsggtfhemheehleehmegvfhefvgdphhgvlhhopeifihhnughsuhhrfhdpmhgrihhlfhhrohhmpehthhhomhgrshdrphgvthgriiiiohhnihessghoohhtlhhinhdrtghomhdpnhgspghrtghpthhtohepkedprhgtphhtthhopegthhhrihhsthhirghnrdhkohgvnhhighesrghmugdrtghomhdprhgtphhtthhopegsrghsthhivghnrdgtuhhruhhttghhvghtsegsohhothhlihhnrdgtohhmpdhrt ghpthhtohepshhumhhithdrshgvmhifrghlsehlihhnrghrohdrohhrghdprhgtphhtthhopehgrhgvghhkhheslhhinhhugihfohhunhgurghtihhonhdrohhrghdprhgtphhtthhopehlihhnuhigqdhmvgguihgrsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtohepughrihdquggvvhgvlheslhhishhtshdrfhhrvggvuggvshhkthhophdrohhrghdprhgtphhtthhopehlihhnrghrohdqmhhmqdhsihhgsehlihhsthhsrdhlihhnrghrohdrohhrghdprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrgh X-GND-Sasl: thomas.petazzoni@bootlin.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hello Christian, On Fri, 11 Apr 2025 14:41:56 +0200 Christian K=C3=B6nig wrote: > But anyway please note that when you want to create new UAPI you need > to provide an open source user of it. E.g. link to a repository or > something similar in the covert letter should do it. Could you clarify what is the "reference" user-space user of UIO that exists today? Thomas --=20 Thomas Petazzoni, co-owner and CEO, Bootlin Embedded Linux and Kernel engineering and training https://bootlin.com