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Fri, 18 Jun 2021 03:18:48 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D54334204B; Fri, 18 Jun 2021 03:18:47 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F263A42045; Fri, 18 Jun 2021 03:18:46 +0000 (GMT) Received: from [9.77.205.195] (unknown [9.77.205.195]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 18 Jun 2021 03:18:46 +0000 (GMT) Subject: Re: [RFC PATCH 8/8] powerpc/papr_scm: Use FORM2 associativity details To: Daniel Henrique Barboza , David Gibson References: <20210614164003.196094-1-aneesh.kumar@linux.ibm.com> <20210614164003.196094-9-aneesh.kumar@linux.ibm.com> <87czsnoejl.fsf@linux.ibm.com> <87a6nrobf6.fsf@linux.ibm.com> <87r1h0n3u6.fsf@linux.ibm.com> <5e180af8-9d48-7519-0b35-967065f8e3e1@gmail.com> From: "Aneesh Kumar K.V" Message-ID: Date: Fri, 18 Jun 2021 08:48:46 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <5e180af8-9d48-7519-0b35-967065f8e3e1@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: YpBxyPnCadkad_0ZxFHhvb8OUXy17Zsz X-Proofpoint-GUID: rSH4Hf31ELB31hu01qIK9ArddEg8KTQI X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.790 definitions=2021-06-17_17:2021-06-15, 2021-06-17 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 phishscore=0 clxscore=1015 mlxlogscore=999 adultscore=0 spamscore=0 bulkscore=0 mlxscore=0 suspectscore=0 malwarescore=0 impostorscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2106180015 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nathan Lynch , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 6/18/21 1:30 AM, Daniel Henrique Barboza wrote: > > > On 6/17/21 8:11 AM, Aneesh Kumar K.V wrote: >> Daniel Henrique Barboza writes: >> >>> On 6/17/21 4:46 AM, David Gibson wrote: >>>> On Tue, Jun 15, 2021 at 12:35:17PM +0530, Aneesh Kumar K.V wrote: >>>>> David Gibson writes: >> > > > In fact, the more I speak about this PMEM scenario the more I wonder: > why doesn't the PMEM driver, when switching from persistent to regular > memory and vice-versa, take care of all the necessary updates in the > numa-distance-table and kernel internals to reflect the current distances > of its current mode? Is this a technical limitation? > > I sent v4 doing something similar to this . -aneesh