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 21F39C636D4 for ; Wed, 15 Feb 2023 05:02:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=X+GLI+838tXsP+t1v4k6gTSKBYClPD2bmc/b4Z5ldNY=; b=GeI0LMvophPBVq Rwg5DIN3DnVmo2HP0QuU6TTWG/y4abJ9p++5tSFB9loMn0ID7U7iSFy9gAvdrWRv/Y0+SP7U5E5xL yPVzhweQr26TszCkXrj4KO6m0lTrdEP5GhG94rhbtJgDgXFC5K3NqDUzYH8T6Z/uMTFme70o4LD46 hlRLgjWzQn5t6WE05/10yTzcwfu6nP8NJLvx2U42grEukqzTRFCn5o3Qbck/lcVH74FycvbFrIdMX 3hakO/3Ij6VnR37iNo5apKfE5pw7is3Oc4OtML9+erGuW0OwhrTe40UiXC2hHAgnCFk5AcJYdSlDH /OwC7UfODfJAsUBquQaw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pS9vH-004jOo-0A; Wed, 15 Feb 2023 05:01:39 +0000 Received: from mout01.posteo.de ([185.67.36.65]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pS9vD-004jOE-8b for linux-arm-kernel@lists.infradead.org; Wed, 15 Feb 2023 05:01:36 +0000 Received: from submission (posteo.de [185.67.36.169]) by mout01.posteo.de (Postfix) with ESMTPS id C69892401B1 for ; Wed, 15 Feb 2023 06:01:30 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1676437292; bh=FWiteDJexgPQ7XRRBus0P85wr8k1keyo2CAWC376RBg=; h=Date:From:To:Cc:Subject:From; b=ZYMkFcT1wUACq7gTSaZHHrFoaxq1SEMvdR0ALtdInGrMwAmObJfxOfDLQjN9Ea+Kz Uheho57PZltWvfBMwHSU5cEWb4pcne/s5cX7yZQ6Cqg1ECCriubQ+UvSx8WJluYzU7 ElYSi3kCs6kuU6Fupz6m1giE4+DWkYmcuaH1uQqdyZhkkT2lpnaWFPULEDE+43I2ay RXO0JRvvjIP15QL4cNbTPenE2YoMDjzOTzODp/G6ysrBnm+1+7D8eRhv97qZ3EwoXZ ekBSLXRdj2UyvxHh1FJJCELVU++mYN9l5dRq9OiObCFGsjanfAYMY7LtUY5NBedp1W dONp3rvW5/v/w== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4PGmBZ5hGhz9rxF; Wed, 15 Feb 2023 06:01:26 +0100 (CET) Date: Wed, 15 Feb 2023 05:01:25 +0000 From: Wilken Gottwalt To: Bastian Germann Cc: Andre Przywara , Ohad Ben-Cohen , Bjorn Andersson , Baolin Wang , Rob Herring , Krzysztof Kozlowski , Chen-Yu Tsai , Samuel Holland , linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, devicetree@vger.kernel.org Subject: Re: [PATCH 0/3] Enable hwlock on Allwinner A64 Message-ID: <20230215060125.0e06312e@posteo.net> In-Reply-To: References: <20230213231931.6546-1-bage@debian.org> <20230214001805.6ead683d@slackpad.lan> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230214_210135_477916_7DED86B8 X-CRM114-Status: GOOD ( 12.16 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, 14 Feb 2023 22:55:45 +0100 Bastian Germann wrote: > Am 14.02.23 um 01:18 schrieb Andre Przywara: > > So are there Linux/Crust patches out there that use this device? > > I do not know of any. I was just investigating the chip and checked the parts that I could easily > use in Linux. Easily using it is, well, a bit questionable. The only reason to use this is for syncing access to hardware between the ARM and the embedded OpenRISC core. Like Andre wrote, it only makes sense if you want to etablish some form of shared access between Linux and the Crust firmware. Using this in Linux only instead of the common spinlocks won't be fun, that hwspinlock unit is slower. greetings, Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel