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 X-Spam-Level: X-Spam-Status: No, score=-7.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99594C4CEC4 for ; Wed, 18 Sep 2019 09:58:24 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 702DB218AF for ; Wed, 18 Sep 2019 09:58:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="mWFwZ8hb" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 702DB218AF Authentication-Results: mail.kernel.org; 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Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iAWjA-0007WU-2C; Wed, 18 Sep 2019 09:58:24 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iAWj7-0007W8-09 for linux-arm-kernel@lists.infradead.org; Wed, 18 Sep 2019 09:58:22 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1E111337; Wed, 18 Sep 2019 02:58:18 -0700 (PDT) Received: from [10.1.197.61] (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 878863F59C; Wed, 18 Sep 2019 02:58:17 -0700 (PDT) Subject: Re: [Question-GIC-v4.1] Plan on GIC-v4.1 driver development From: Marc Zyngier To: Shaokun Zhang , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu References: <40d7276c-54a3-0cca-a207-217459850c21@hisilicon.com> <0501c049-67a6-9a63-e0d9-e043573e1211@kernel.org> Openpgp: preference=signencrypt Autocrypt: addr=maz@kernel.org; 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Linux aarch64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <0501c049-67a6-9a63-e0d9-e043573e1211@kernel.org> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190918_025821_134716_59706789 X-CRM114-Status: GOOD ( 11.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Tangnianyao \(ICT\)" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 17/09/2019 10:23, Marc Zyngier wrote: > On 17/09/2019 03:15, Shaokun Zhang wrote: >> Hi Marc, >> >> This is from Nianyao Tang. >> >> I'm planning to do some verification on our GIC-v4.1 implement. I would like some >> information about linux GIC-v4.1 driver. When will linux support GIC-v4.1 or what's >> the plan on developing GIC-v4.1 driver? > > The easy answer is that yes, there is a plan. There is some code, even, > just not quite in a usable state yet. I'll try to push something out > once I get a chance. FWIW, I've pushed out a branch containing the current state of this work at [1]. It doesn't really work at the moment (Doorbells and SGIs are unreliable), but hopefully that will give you an idea of what is going on. Being a work in progress, it is unstable, subject to being changed, rebased and deleted without warning. Thanks, M. [1] https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/log/?h=irq/gic-v4.1-devel -- Jazz is not dead, it just smells funny... _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel