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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 85B64C0015E for ; Wed, 19 Jul 2023 06:09:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229832AbjGSGJh (ORCPT ); Wed, 19 Jul 2023 02:09:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42808 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229476AbjGSGJf (ORCPT ); Wed, 19 Jul 2023 02:09:35 -0400 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9EFB31BF2; Tue, 18 Jul 2023 23:09:34 -0700 (PDT) Received: from pps.filterd (m0356516.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36J63CHZ024876; Wed, 19 Jul 2023 06:09:23 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding; s=pp1; bh=V39H711HKU9/skviqQuB5rlaLN3pdUAYy7qVwSsavpo=; b=thvydvDkjuNczqJTv/FZl5HQUfI23eLsauF2+AWGbccPat1x5jrmroSbFTRFtZXuJjjM jm1x8mJpN1OsWg+oTOcHaAFDaVTAsNy6ooW0wTKF0LRA3+7Xv+4n69r1FDViaXyw5X1X Ieeu3K0L5iNFb8r3cx6z3pRlECOsTbnwImPPL4KiClsVn+/FM2ui6qp9+0RIxmolAbs0 wj6zIg78waGay2MxDYnsj08jTNc6JtXSqlTQ6AFma2abIkpfc0kXt2+OcK0D2+P6r20t MBiB+rCaEWs6Ihl+BfVQWJ1Dk12SuhJ4edqrx15euEkxQ5GW4xXNNGBcygR0WfQiyTOZ fA== Received: from ppma13.dal12v.mail.ibm.com (dd.9e.1632.ip4.static.sl-reverse.com [50.22.158.221]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3rxa7hrdyd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 19 Jul 2023 06:09:21 +0000 Received: from pps.filterd (ppma13.dal12v.mail.ibm.com [127.0.0.1]) by ppma13.dal12v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 36J2fGoc004510; Wed, 19 Jul 2023 06:07:19 GMT Received: from smtprelay04.fra02v.mail.ibm.com ([9.218.2.228]) by ppma13.dal12v.mail.ibm.com (PPS) with ESMTPS id 3rv80j5wqa-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 19 Jul 2023 06:07:19 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay04.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 36J67GE445351566 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 19 Jul 2023 06:07:16 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4803120043; Wed, 19 Jul 2023 06:07:16 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DF5BD20040; Wed, 19 Jul 2023 06:07:10 +0000 (GMT) Received: from li-e8dccbcc-2adc-11b2-a85c-bc1f33b9b810.ibm.com.com (unknown [9.43.119.126]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 19 Jul 2023 06:07:10 +0000 (GMT) From: Kajol Jain To: mpe@ellerman.id.au Cc: linuxppc-dev@lists.ozlabs.org, maddy@linux.ibm.com, atrajeev@linux.vnet.ibm.com, disgoel@linux.ibm.com, kjain@linux.ibm.com, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, rdunlap@infradead.org Subject: [PATCH v3 00/10] Add sysfs interface files to hv_gpci device to expose system information Date: Wed, 19 Jul 2023 11:36:42 +0530 Message-Id: <20230719060652.625387-1-kjain@linux.ibm.com> X-Mailer: git-send-email 2.39.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: v_kyyCPmHtdRquiGc8LGAiZ2cYwS6ps- X-Proofpoint-ORIG-GUID: v_kyyCPmHtdRquiGc8LGAiZ2cYwS6ps- 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=2023-07-19_02,2023-07-18_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 suspectscore=0 phishscore=0 mlxlogscore=999 spamscore=0 priorityscore=1501 impostorscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307190056 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The hcall H_GET_PERF_COUNTER_INFO can be used to get data related to chips, dimms and system topology, by passing different counter request values. Patchset adds sysfs files to "/sys/devices/hv_gpci/interface/" of hv_gpci pmu driver, which will expose system topology information using H_GET_PERF_COUNTER_INFO hcall. The added sysfs files are available for power10 and above platforms and needs root access to read the data. Patches 1,3,5,7,9 adds sysfs interface files to the hv_gpci pmu driver, to get system topology information. List of added sysfs files: -> processor_bus_topology (Counter request value : 0xD0) -> processor_config (Counter request value : 0x90) -> affinity_domain_via_virtual_processor (Counter request value : 0xA0) -> affinity_domain_via_domain (Counter request value : 0xB0) -> affinity_domain_via_partition (Counter request value : 0xB1) Patches 2,4,6,8,10 adds details of the newly added hv_gpci interface files listed above in the ABI documentation. Patches 2,4,6,8,10 adds details of the newly added hv_gpci interface files listed above in the ABI documentation. Changelog: v2 -> v3 -> Make nit changes in documentation patches as suggested by Randy Dunlap. v1 -> v2 -> Incase the HCALL fails with errors that can be resolve during runtime, then only add sysinfo interface attributes to the interface_attrs attribute array. Even if one of the counter request value HCALL fails, don't add any sysinfo attribute to the interface_attrs attribute array. Add the code changes to make sure sysinfo interface added only when all the requirements met as suggested by Michael Ellerman. -> Make changes in documentation, adds detail of errors type which can be resolved at runtime as suggested by Michael Ellerman. -> Add new enum and sysinfo_counter_request array to get required counter request value in hv-gpci.c file. -> Move the macros for interface attribute array index to hv-gpci.c, as these macros currently only used in hv-gpci.c file. Kajol Jain (10): powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show processor bus topology information docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document processor_bus_topology sysfs interface file powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show processor config information docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document processor_config sysfs interface file powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity domain via virtual processor information docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document affinity_domain_via_virtual_processor sysfs interface file powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity domain via domain information docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document affinity_domain_via_domain sysfs interface file powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity domain via partition information docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document affinity_domain_via_partition sysfs interface file .../sysfs-bus-event_source-devices-hv_gpci | 160 +++++ arch/powerpc/perf/hv-gpci.c | 640 +++++++++++++++++- 2 files changed, 798 insertions(+), 2 deletions(-) -- 2.39.3