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Mon, 6 Jul 2020 23:19:23 +0000 (GMT) Received: from localhost (unknown [9.160.49.198]) by b03ledav006.gho.boulder.ibm.com (Postfix) with ESMTP; Mon, 6 Jul 2020 23:19:23 +0000 (GMT) From: Nathan Lynch To: Srikar Dronamraju Subject: Re: [PATCH] powerpc/numa: Restrict possible nodes based on platform In-Reply-To: <20200706064002.14848-1-srikar@linux.vnet.ibm.com> References: <20200706064002.14848-1-srikar@linux.vnet.ibm.com> Date: Mon, 06 Jul 2020 18:19:22 -0500 Message-ID: <877dvgfczp.fsf@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-07-06_20:2020-07-06, 2020-07-06 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 priorityscore=1501 adultscore=0 impostorscore=0 phishscore=0 suspectscore=1 bulkscore=0 clxscore=1011 spamscore=0 mlxscore=0 cotscore=-2147483648 malwarescore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2007060159 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: linuxppc-dev , Bharata B Rao Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Srikar Dronamraju writes: > diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c > index 9fcf2d195830..3d55cef1a2dc 100644 > --- a/arch/powerpc/mm/numa.c > +++ b/arch/powerpc/mm/numa.c > @@ -897,7 +897,7 @@ static void __init find_possible_nodes(void) > return; > > if (of_property_read_u32_index(rtas, > - "ibm,max-associativity-domains", > + "ibm,current-associativity-domains", > min_common_depth, &numnodes)) Looks good if ibm,current-associativity-domains[min_common_depth] actually denotes the range of possible values, i.e. a value of 2 implies node numbers 0 and 1. PAPR+ says it's the "number of unique values", which isn't how I would specify the property if it's supposed to express a range. But it's probably OK...