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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 87227EB64D9 for ; Fri, 7 Jul 2023 02:33:25 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=m0htwMp4; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4QxyBD00fLz3c5V for ; Fri, 7 Jul 2023 12:33:24 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=m0htwMp4; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com (client-ip=148.163.158.5; helo=mx0b-001b2d01.pphosted.com; envelope-from=bgray@linux.ibm.com; receiver=lists.ozlabs.org) Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4Qxy9D6vk5z3bVJ for ; Fri, 7 Jul 2023 12:32:32 +1000 (AEST) Received: from pps.filterd (m0353723.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3672SNMF008960 for ; Fri, 7 Jul 2023 02:32:29 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=message-id : subject : from : to : cc : date : in-reply-to : references : content-type : content-transfer-encoding : mime-version; s=pp1; bh=E+P9UZpZ7VrelFrFpSGsW/nu713/Gvs0oaKN1A5EnPY=; b=m0htwMp41Q8ahpm4SkuqbaSibtTmQdfQlKt5CjkydFnFa5pYdnNbQ8BUsh/Fj9fKqnpC odMfSfaw8ln5qJLSfZz9pKrbyGH62OjQKtOTvT1XYH0/Niy2FKJOiePo0nFft/6yy4j9 LJTQyzULL0scS4I3C9Klj7X7RBMqu6b6AqSncXwxDtUuJ4w0BEzvlKOh/JbJHSHGgB6M bkClvv8PGHm04f4Amv6WWGNC0huneFpUSkwlW+6+B38aXSCoIlWlPD77UqmmfOk4rJHy xnH0Cw2gseyeSop3W6qbJDSRqAHQsTWrbDh79Na+xIbu2VABzHmh0l4hS3kgoS/4WEFN 6Q== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3rp9xy827s-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 07 Jul 2023 02:32:28 +0000 Received: from m0353723.ppops.net (m0353723.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 3672U5mh012744 for ; Fri, 7 Jul 2023 02:32:28 GMT Received: from ppma04ams.nl.ibm.com (63.31.33a9.ip4.static.sl-reverse.com [169.51.49.99]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3rp9xy827a-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 07 Jul 2023 02:32:28 +0000 Received: from pps.filterd (ppma04ams.nl.ibm.com [127.0.0.1]) by ppma04ams.nl.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 366M1gdu006983; Fri, 7 Jul 2023 02:32:26 GMT Received: from smtprelay04.fra02v.mail.ibm.com ([9.218.2.228]) by ppma04ams.nl.ibm.com (PPS) with ESMTPS id 3rjbs4ur2v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 07 Jul 2023 02:32:26 +0000 Received: from smtpav04.fra02v.mail.ibm.com (smtpav04.fra02v.mail.ibm.com [10.20.54.103]) by smtprelay04.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 3672WOIO45744626 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 7 Jul 2023 02:32:24 GMT Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 870E620040; Fri, 7 Jul 2023 02:32:24 +0000 (GMT) Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0F6BC20043; Fri, 7 Jul 2023 02:32:24 +0000 (GMT) Received: from ozlabs.au.ibm.com (unknown [9.192.253.14]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 7 Jul 2023 02:32:24 +0000 (GMT) Received: from [10.61.2.107] (haven.au.ibm.com [9.192.254.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.au.ibm.com (Postfix) with ESMTPSA id 016F2600F0; Fri, 7 Jul 2023 12:32:21 +1000 (AEST) Message-ID: <643ebc8519d22e0ed869989490f39780c1bde09d.camel@linux.ibm.com> Subject: Re: [PATCH] powerpc/powermac: Use early_* IO variants in via_calibrate_decr From: Benjamin Gray To: linuxppc-dev@lists.ozlabs.org Date: Fri, 07 Jul 2023 12:32:21 +1000 In-Reply-To: <20230706010816.72682-1-bgray@linux.ibm.com> References: <20230706010816.72682-1-bgray@linux.ibm.com> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.48.3 (3.48.3-1.fc38) X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Lz9fiX64g5HdeGh6aVZL96DPikwMrDs7 X-Proofpoint-ORIG-GUID: zjUujOAGxezXGUmpLH-ahnERe8I3NIf5 Content-Transfer-Encoding: quoted-printable X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-06_17,2023-07-06_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxlogscore=632 impostorscore=0 malwarescore=0 adultscore=0 suspectscore=0 clxscore=1015 priorityscore=1501 lowpriorityscore=0 spamscore=0 bulkscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2307070017 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: Jordan Niethe Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Thu, 2023-07-06 at 11:08 +1000, Benjamin Gray wrote: > The issue is pre-existing, but is surfaced by commit 721255b9826b > ("genirq: Use a maple tree for interrupt descriptor management"). > It's not clear to me why this causes it to surface. >From the thread chain in [1], it looks like the maple tree implementation just has different allocation behaviour, which follows a pre-existing code path to kmem_cache_alloc_bulk(), which unconditionally enables interrupts. (thanks Jordan Niethe for finding this thread) [1]: https://lore.kernel.org/all/87o7qdzfay.ffs@tglx/