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 CA407C43334 for ; Wed, 15 Jun 2022 16:45:56 +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=Lcyixq6A2qU6LlTg4dkQ+k9vq59EXRFHMucJatG+7lY=; b=WeXt3X3dkInOSH lYtwH7lPdSHiRhMHixnBD0cO2yWPchK7JRhpvEzMOYcxZ/AZ9JBAy6DgR1W7s6lN76w8XL6Wz8BMm jzJiAB185aZId8Opt/KBc5/QZs27Wo9GMUGZYVUa8ZGIAYMNw4H9ot8cF81u/1NCMrzZE0OgZKhlg 1ngQnA3wpX3k7EVXUlH9L1yxc1gz5OoEJbprzUL8WBMveSijtEPg9dSNkt9d39+3NiVm4nqYWbx32 W/FJVip1S/vMyTYU1UN8Ukvl0N1SrEnP+v8c7k3QmCGWuVTcODEIGmW8r1bl0T2mSGPc2rd8edy49 9SrzMKKvGKw+CedUmksA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o1W8Q-00FToA-IK; Wed, 15 Jun 2022 16:44:50 +0000 Received: from frasgout.his.huawei.com ([185.176.79.56]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o1W8L-00FTn8-Ka for linux-arm-kernel@lists.infradead.org; Wed, 15 Jun 2022 16:44:48 +0000 Received: from fraeml739-chm.china.huawei.com (unknown [172.18.147.200]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4LNWM60VvDz67kFm; Thu, 16 Jun 2022 00:42:58 +0800 (CST) Received: from lhreml710-chm.china.huawei.com (10.201.108.61) by fraeml739-chm.china.huawei.com (10.206.15.220) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Wed, 15 Jun 2022 18:44:35 +0200 Received: from localhost (10.202.226.42) by lhreml710-chm.china.huawei.com (10.201.108.61) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Wed, 15 Jun 2022 17:44:34 +0100 Date: Wed, 15 Jun 2022 17:44:32 +0100 From: Jonathan Cameron To: James Morse CC: "itaru.kitayama@fujitsu.com" , 'Rob Herring' , "'linux-arm-kernel@lists.infradead.org'" , "tan.shaopeng@fujitsu.com" Subject: Re: mpam/snapshot/v5.17 Message-ID: <20220615174432.00006951@Huawei.com> In-Reply-To: <71500d44-e318-ba0d-4e0f-079d338940e7@arm.com> References: <20220613164406.GA3874918-robh@kernel.org> <71500d44-e318-ba0d-4e0f-079d338940e7@arm.com> Organization: Huawei Technologies Research and Development (UK) Ltd. X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.29; i686-w64-mingw32) MIME-Version: 1.0 X-Originating-IP: [10.202.226.42] X-ClientProxiedBy: lhreml739-chm.china.huawei.com (10.201.108.189) To lhreml710-chm.china.huawei.com (10.201.108.61) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220615_094445_868890_CBE64DBF X-CRM114-Status: GOOD ( 15.39 ) 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 Wed, 15 Jun 2022 11:26:27 +0100 James Morse wrote: > Hi Itaru, > > On 6/13/22 22:59, itaru.kitayama@fujitsu.com wrote: > > Rob, > > Indeed my colleague pointed that out to me as well. In the meantime, what's the best way > > to test the MPAM feature (8.4 optional)? > > I do my testing with the Fixed Virtual Platform from arm[0]. > Its a bit of a pain to set up, but it configured correctly it presents MPAM MSC - although > they don't do anything as its not a performance model. > > There are a ton of options, but the main two to try and enable are something like: > | cluster0.has_mpam=1 > | cluster0.l3cache-mpamf_base=0x30000000 > > Let me know off list if you want a hand setting it up. > > > One day there will be hardware! There is (and has been for several years... :) https://chowdera.com/2021/05/20210504023631776n.html openEuler is carrying code for it. https://gitee.com/openeuler/kernel/tree/openEuler-22.03-LTS/arch/arm64/kernel/mpam > > > Thanks, > > James > > [0] https://developer.arm.com/Tools%20and%20Software/Fixed%20Virtual%20Platforms > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel