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 28A36EC01A9 for ; Mon, 23 Mar 2026 09:19:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:CC:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=1CBitt41aOPgXc609m1BX5pROPHBEKPBN470I8eWNog=; b=NpdCGPUjb2sDEZ+54S4ShxnTUI H8xkPAzuATbYIvydPeHVdtuXzeJXVFNiOCs27vSlqZYwFLrQEl314pDFs5p3OR/a9j27bVIJOscS5 eaK+dLs8H624BVr2rB+YY7GAEVKg4kq6GM5ylltzySMIUJPRTNju43ZAs7267Rgw0SvttAmhSL46k xxXm0uV0MGmWHnD3PBlGoy66F8ZJ6a1mMP/A5heHGdjfP7X5+2mccezAMKbmdp3+j12ZrXscPrcGJ SehGYE8Tjc3Q2grdFgdJMlFLCOw7hPSLRm7gjFxpd571Hmja/mu+MWyOxOdcctU9QFoDET0ucVb1m t9yPSBeg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w4bRW-0000000GMTd-3v2U; Mon, 23 Mar 2026 09:19:26 +0000 Received: from canpmsgout10.his.huawei.com ([113.46.200.225]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w4bRF-0000000GMPu-0yc5 for linux-arm-kernel@lists.infradead.org; Mon, 23 Mar 2026 09:19:12 +0000 dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=1CBitt41aOPgXc609m1BX5pROPHBEKPBN470I8eWNog=; b=gRfp1lFHfqlIXOiVL12M6sd6Otkn5CAtDcB1hCVnozxdfyhHTvEv7109iyR4PqquNMC8kSHiU eo2yluK6FSYiK/ZZ2+QHzEz5n02jYnGw7CSS8dNqoiPd7X1fepmGvLFRsSXdsAliSWppmfNDQ9B s8bp40eTCkXPktGmnpt669E= Received: from mail.maildlp.com (unknown [172.19.163.15]) by canpmsgout10.his.huawei.com (SkyGuard) with ESMTPS id 4ffSBN6f9zz1K96D; Mon, 23 Mar 2026 17:13:00 +0800 (CST) Received: from kwepemk500005.china.huawei.com (unknown [7.202.194.90]) by mail.maildlp.com (Postfix) with ESMTPS id EEB7040565; Mon, 23 Mar 2026 17:19:02 +0800 (CST) Received: from [10.67.120.222] (10.67.120.222) by kwepemk500005.china.huawei.com (7.202.194.90) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Mon, 23 Mar 2026 17:19:02 +0800 Message-ID: <76186614-aa16-4a73-8fa9-059bb0a70486@huawei.com> Date: Mon, 23 Mar 2026 17:19:01 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC patch 8/9] selftests/resctrl: Add support for HiSilicon MBM/MBA test To: Reinette Chatre , , , , , , , , , , , , , CC: , , , , , References: <20260304040334.765860-1-wuyifan50@huawei.com> <20260304040334.765860-9-wuyifan50@huawei.com> From: wuyifan In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.67.120.222] X-ClientProxiedBy: kwepems200002.china.huawei.com (7.221.188.68) To kwepemk500005.china.huawei.com (7.202.194.90) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260323_021911_310346_380F0CF5 X-CRM114-Status: UNSURE ( 6.43 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Reinette, On 3/13/2026 5:01 AM, Reinette Chatre wrote: > Which baseline exposes MB_MON in resctrl? > > Reinette In the MPAM architecture reference manual, the memory-system component includes the cache and memory channel controller, among others. The memory channel controller can implement a memory bandwidth usage monitor. I noticed that arm_mpam maps other classes to l3 in the resctrl glue code, so I will fix this in the next version. Regards, Yifan Wu