From patchwork Tue Sep 28 11:51:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Pratik R. Sampat" X-Patchwork-Id: 12522363 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19C8CC433F5 for ; Tue, 28 Sep 2021 11:51:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F243F61157 for ; Tue, 28 Sep 2021 11:51:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240482AbhI1LxY (ORCPT ); Tue, 28 Sep 2021 07:53:24 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:2614 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240440AbhI1LxT (ORCPT ); Tue, 28 Sep 2021 07:53:19 -0400 Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 18SAF2l4026529; Tue, 28 Sep 2021 07:51:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=+5dr6xlj8qoY79+JHA0sHze00da8FJpvRmaJ5NEFTms=; b=BD72vPloAVscujrAxd91mbGQIItaT8m1CilLIpKjXFG37I1rTcos+BhrWGZUGO9DohOA hTle0g8rmuBzJ1PJeqj9ebkhhKb9HcV93sXnnfRTyIzcfq/BO27OHLnlgEmAYy1Szsrt cc+9O1kRwU9BQkEpZjgrikhACs4QOM7YmjtbFJ3N9wNj8gA5UUlo7It8beHfNcI2VkUd pOiXFkapbLsFhvKGYjwb2kNQ/SU8n9TqoioXmNM9mn0mTrPNMBQFxjVtNRxS5o7rSLDz lSDs7yRaouwpPtVWnvQIjbZavzdhLW/RJHT2Go8zrvJBHTc7JW+iuYMtb20UrRYx8a2X hg== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 3bbxq7d0ta-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 28 Sep 2021 07:51:24 -0400 Received: from m0187473.ppops.net (m0187473.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 18SBDlVU034986; Tue, 28 Sep 2021 07:51:24 -0400 Received: from ppma04ams.nl.ibm.com (63.31.33a9.ip4.static.sl-reverse.com [169.51.49.99]) by mx0a-001b2d01.pphosted.com with ESMTP id 3bbxq7d0sn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 28 Sep 2021 07:51:24 -0400 Received: from pps.filterd (ppma04ams.nl.ibm.com [127.0.0.1]) by ppma04ams.nl.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 18SBhKI8021670; Tue, 28 Sep 2021 11:51:21 GMT Received: from b06cxnps4076.portsmouth.uk.ibm.com (d06relay13.portsmouth.uk.ibm.com [9.149.109.198]) by ppma04ams.nl.ibm.com with ESMTP id 3b9ud9na6h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 28 Sep 2021 11:51:21 +0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps4076.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 18SBpHlB40829314 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 28 Sep 2021 11:51:17 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BC68E11C04A; Tue, 28 Sep 2021 11:51:17 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A7BF211C054; Tue, 28 Sep 2021 11:51:13 +0000 (GMT) Received: from pratiks-thinkpad.ibm.com (unknown [9.43.58.127]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 28 Sep 2021 11:51:13 +0000 (GMT) From: "Pratik R. Sampat" To: mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org, shuah@kernel.org, farosas@linux.ibm.com, kjain@linux.ibm.com, linuxppc-dev@lists.ozlabs.org, kvm-ppc@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, psampat@linux.ibm.com, pratik.r.sampat@gmail.com Subject: [PATCH v8 2/2] selftest/powerpc: Add PAPR sysfs attributes sniff test Date: Tue, 28 Sep 2021 17:21:02 +0530 Message-Id: <20210928115102.57117-3-psampat@linux.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210928115102.57117-1-psampat@linux.ibm.com> References: <20210928115102.57117-1-psampat@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: _iqWDJ0KI134p2VWX7lrRNns_6aIVbRL X-Proofpoint-GUID: ayVoehO3e9g6cw3yyVAlfzIEaWY7AFgN X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.391,FMLib:17.0.607.475 definitions=2021-09-28_05,2021-09-28_01,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 clxscore=1015 malwarescore=0 phishscore=0 mlxscore=0 spamscore=0 adultscore=0 bulkscore=0 impostorscore=0 suspectscore=0 lowpriorityscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109230001 definitions=main-2109280065 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Include a testcase to check if the sysfs files for energy and frequency related have its related attribute files exist and populated Signed-off-by: Pratik R. Sampat --- tools/testing/selftests/powerpc/Makefile | 1 + .../powerpc/papr_attributes/.gitignore | 2 + .../powerpc/papr_attributes/Makefile | 7 ++ .../powerpc/papr_attributes/attr_test.c | 107 ++++++++++++++++++ 4 files changed, 117 insertions(+) create mode 100644 tools/testing/selftests/powerpc/papr_attributes/.gitignore create mode 100644 tools/testing/selftests/powerpc/papr_attributes/Makefile create mode 100644 tools/testing/selftests/powerpc/papr_attributes/attr_test.c diff --git a/tools/testing/selftests/powerpc/Makefile b/tools/testing/selftests/powerpc/Makefile index 0830e63818c1..c68c872efb23 100644 --- a/tools/testing/selftests/powerpc/Makefile +++ b/tools/testing/selftests/powerpc/Makefile @@ -30,6 +30,7 @@ SUB_DIRS = alignment \ eeh \ vphn \ math \ + papr_attributes \ ptrace \ security diff --git a/tools/testing/selftests/powerpc/papr_attributes/.gitignore b/tools/testing/selftests/powerpc/papr_attributes/.gitignore new file mode 100644 index 000000000000..9c8cb54c8b28 --- /dev/null +++ b/tools/testing/selftests/powerpc/papr_attributes/.gitignore @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only +attr_test \ No newline at end of file diff --git a/tools/testing/selftests/powerpc/papr_attributes/Makefile b/tools/testing/selftests/powerpc/papr_attributes/Makefile new file mode 100644 index 000000000000..135886f200ad --- /dev/null +++ b/tools/testing/selftests/powerpc/papr_attributes/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0 +TEST_GEN_PROGS := attr_test + +top_srcdir = ../../../../.. +include ../../lib.mk + +$(TEST_GEN_PROGS): ../harness.c ../utils.c diff --git a/tools/testing/selftests/powerpc/papr_attributes/attr_test.c b/tools/testing/selftests/powerpc/papr_attributes/attr_test.c new file mode 100644 index 000000000000..905e2cbb3863 --- /dev/null +++ b/tools/testing/selftests/powerpc/papr_attributes/attr_test.c @@ -0,0 +1,107 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * PAPR Energy attributes sniff test + * This checks if the papr folders and contents are populated relating to + * the energy and frequency attributes + * + * Copyright 2021, Pratik Rajesh Sampat, IBM Corp. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "utils.h" + +enum energy_freq_attrs { + POWER_PERFORMANCE_MODE = 1, + IDLE_POWER_SAVER_STATUS = 2, + MIN_FREQ = 3, + STAT_FREQ = 4, + MAX_FREQ = 6, + PROC_FOLDING_STATUS = 8 +}; + +enum type { + INVALID, + STR_VAL, + NUM_VAL +}; + +int value_type(int id) +{ + int val_type; + + switch(id) { + case POWER_PERFORMANCE_MODE: + case IDLE_POWER_SAVER_STATUS: + val_type = STR_VAL; + break; + case MIN_FREQ: + case STAT_FREQ: + case MAX_FREQ: + case PROC_FOLDING_STATUS: + val_type = NUM_VAL; + break; + default: + val_type = INVALID; + } + + return val_type; +} + +int verify_energy_info() +{ + const char *path = "/sys/firmware/papr/energy_scale_info"; + struct dirent *entry; + struct stat s; + DIR *dirp; + + if (stat(path, &s) || !S_ISDIR(s.st_mode)) + return -1; + dirp = opendir(path); + + while ((entry = readdir(dirp)) != NULL) { + char file_name[64]; + int id, attr_type; + FILE *f; + + if (strcmp(entry->d_name,".") == 0 || + strcmp(entry->d_name,"..") == 0) + continue; + + id = atoi(entry->d_name); + attr_type = value_type(id); + if (attr_type == INVALID) + return -1; + + /* Check if the files exist and have data in them */ + sprintf(file_name, "%s/%d/desc", path, id); + f = fopen(file_name, "r"); + if (!f || fgetc(f) == EOF) + return -1; + + sprintf(file_name, "%s/%d/value", path, id); + f = fopen(file_name, "r"); + if (!f || fgetc(f) == EOF) + return -1; + + if (attr_type == STR_VAL) { + sprintf(file_name, "%s/%d/value_desc", path, id); + f = fopen(file_name, "r"); + if (!f || fgetc(f) == EOF) + return -1; + } + } + + return 0; +} + +int main(void) +{ + return test_harness(verify_energy_info, "papr_attributes"); +}