From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D58E3387566; Mon, 23 Mar 2026 09:19:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.187 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774257555; cv=none; b=h3KwPK/UhDkx+3KqKBRjxo0Fu+I9kdRNOobmlQ0QpGCn78d1Y2SlwN4vPjUQ0Gv9L70VoXAFC6d6lUtmzxwzZgDdYBV59B7c00bh8wFMOVndvPKF4hviDc/9Bcfh5i4AvQbBZyj8JlDtLgA5qVS1Au2HkEDtvkDzEu72Ccf1Yzc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774257555; c=relaxed/simple; bh=1CBitt41aOPgXc609m1BX5pROPHBEKPBN470I8eWNog=; h=Message-ID:Date:MIME-Version:Subject:To:CC:References:From: In-Reply-To:Content-Type; b=XqInhh0QZQcOkBWTfDdQweiIX2KwSJFLAAVVEWx9t0V5t2maTJLEQJTVdSDt40//x6aUTw7GEsh89HJ7+huEdAy7GONgNk6fVI32AudMhGdNfgwtwn95RKyxjF3ct3DL2KgA8eAJZYf6H+SfCg8kLdntFkVF8YWfN6GTGqA5NHQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com header.b=gRfp1lFH; dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com header.b=gRfp1lFH; arc=none smtp.client-ip=45.249.212.187 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com header.b="gRfp1lFH"; dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com header.b="gRfp1lFH" 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 canpmsgout10.his.huawei.com (unknown [172.19.92.130]) by szxga01-in.huawei.com (SkyGuard) with ESMTPS id 4ffSKT3r5nz1BGFG; Mon, 23 Mar 2026 17:19:09 +0800 (CST) 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 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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-ClientProxiedBy: kwepems200002.china.huawei.com (7.221.188.68) To kwepemk500005.china.huawei.com (7.202.194.90) 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