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 AD84CC001DC for ; Sat, 29 Jul 2023 07:35:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229496AbjG2Hfh (ORCPT ); Sat, 29 Jul 2023 03:35:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229447AbjG2Hfh (ORCPT ); Sat, 29 Jul 2023 03:35:37 -0400 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 35450101; Sat, 29 Jul 2023 00:35:36 -0700 (PDT) Received: from pps.filterd (m0353729.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36T7VfEj003000; Sat, 29 Jul 2023 07:35:18 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=Q7EgVlIj8WWBI961jwvSr0S3u2PuA1rGpYpxCocZk+A=; b=gsKFuyv+VTfoNxTMdZmwnB9n/0NDYJrDvVlX7xldot69lvnQj4KAQ1Ka9KWWq8HPgQTG zgZmEnaJbgjIFCwK5LTW8LTuneiAGyr8K/zlW7wn8SZbBJPG6SXxeb4tTc32xzMweYzz nYEod4Ev66I54fs7Luq6cdgn64MO7whWCTWZVEO+aKJrmx2eoy6rgYAZpbPcYYpdRJha 34NEqNLxBOW4Wzvyaklw4cqz6Kb4/9hjgwDwambjHqRACW994n3J6yITVuC5Phi01AyX hdIjb/fuwdKcPDQ2t6DFNYhY6eT/PHWVtJQCUTrpRwNlZNDoTXHzzxrK9XhS3E2aoYTX sg== Received: from ppma12.dal12v.mail.ibm.com (dc.9e.1632.ip4.static.sl-reverse.com [50.22.158.220]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3s4xf0857t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 29 Jul 2023 07:35:17 +0000 Received: from pps.filterd (ppma12.dal12v.mail.ibm.com [127.0.0.1]) by ppma12.dal12v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 36T6KKJd026189; Sat, 29 Jul 2023 07:35:16 GMT Received: from smtprelay06.fra02v.mail.ibm.com ([9.218.2.230]) by ppma12.dal12v.mail.ibm.com (PPS) with ESMTPS id 3s0sesw7kj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 29 Jul 2023 07:35:16 +0000 Received: from smtpav02.fra02v.mail.ibm.com (smtpav02.fra02v.mail.ibm.com [10.20.54.101]) by smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 36T7ZE8m45351362 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 29 Jul 2023 07:35:14 GMT Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EFBEB20043; Sat, 29 Jul 2023 07:35:13 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CA70620040; Sat, 29 Jul 2023 07:35:11 +0000 (GMT) Received: from li-e8dccbcc-2adc-11b2-a85c-bc1f33b9b810.ibm.com.com (unknown [9.171.60.192]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Sat, 29 Jul 2023 07:35:11 +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 v4 00/10] Add sysfs interface files to hv_gpci device to expose system information Date: Sat, 29 Jul 2023 13:04:45 +0530 Message-Id: <20230729073455.7918-1-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-ORIG-GUID: I8Wpywaubs4fkQr8LNtiWXmt0_k1PZ75 X-Proofpoint-GUID: I8Wpywaubs4fkQr8LNtiWXmt0_k1PZ75 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=2023-07-27_10,2023-07-26_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 bulkscore=0 spamscore=0 impostorscore=0 malwarescore=0 mlxlogscore=999 lowpriorityscore=0 mlxscore=0 phishscore=0 clxscore=1015 adultscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307290068 Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@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: v3 -> v4 -> Add Reviewed-by tag from Athira Rajeev. -> Correct typo by changing processor_bug_topology to processor_bus_topology 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