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 X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2B32AC1975A for ; Wed, 25 Mar 2020 12:42:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EAA4F20870 for ; Wed, 25 Mar 2020 12:42:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585140167; bh=Sqh0QRnk5ug49LgoDCJo7fAfb5SoaJ8dyxKFQn2IToM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=OKfR7lD3hwCnQRQMi1EiTMdkxOmY9NCOvIf4OC1tO4OE6s6NII4QjemCdqyhefsA+ g/wbS8s45thRz12r0M0AipVspSjTnULzhIymc/taR0SWKoujCb7MyOOCUSqGfkv6Ne 4UpNMlHRHqDzZ/HVoUU5ZBU9PxMB0DWMjgFc+hsE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727720AbgCYMmp (ORCPT ); Wed, 25 Mar 2020 08:42:45 -0400 Received: from mail.kernel.org ([198.145.29.99]:59562 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727391AbgCYMmm (ORCPT ); Wed, 25 Mar 2020 08:42:42 -0400 Received: from quaco.ghostprotocols.net (unknown [179.97.37.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 206E6207FC; Wed, 25 Mar 2020 12:42:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585140162; bh=Sqh0QRnk5ug49LgoDCJo7fAfb5SoaJ8dyxKFQn2IToM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GKbLVH2XUHO9gSCU+ZeOYZEVOIl+ZOOX6jcHjUf3gBpF9ISAVeET9WA7LAGWVLlUy 4jg5kynJzzXuk985E/Lg/ZcGYIOsoojK0fDoCdeKjJ9UNPgwnYyRmbfIBaceLuFu5s 9AfU5j5ckLXWYRJj3/9jUC7ZPEZDDPw8jhOtPMDA= From: Arnaldo Carvalho de Melo To: Ingo Molnar , Thomas Gleixner Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, John Garry , Jiri Olsa , Alexander Shishkin , Andi Kleen , James Clark , Joakim Zhang , Mark Rutland , Peter Zijlstra , Will Deacon , linuxarm@huawei.com, Arnaldo Carvalho de Melo Subject: [PATCH 17/24] perf jevents: Support test events folder Date: Wed, 25 Mar 2020 09:41:17 -0300 Message-Id: <20200325124124.32648-18-acme@kernel.org> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200325124124.32648-1-acme@kernel.org> References: <20200325124124.32648-1-acme@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: John Garry With the goal of supporting pmu-events test case, introduce support for a test events folder. These test events can be used for testing generation of pmu-event tables and alias creation for any arch. When running the pmu-events test case, these test events will be used as the platform-agnostic events, so aliases can be created per-PMU and validated against known expected values. To support the test events, add a "testcpu" entry in pmu_events_map[]. The pmu-events test will be able to lookup the events map for "testcpu", to verify the generated tables against expected values. The resultant generated pmu-events.c will now look like the following: struct pmu_event pme_ampere_emag[] = { { .name = "ldrex_spec", .event = "event=0x6c", .desc = "Exclusive operation spe...", .topic = "intrinsic", .long_desc = "Exclusive operation ...", }, ... }; struct pmu_event pme_test_cpu[] = { { .name = "uncore_hisi_ddrc.flux_wcmd", .event = "event=0x2", .desc = "DDRC write commands. Unit: hisi_sccl,ddrc ", .topic = "uncore", .long_desc = "DDRC write commands", .pmu = "hisi_sccl,ddrc", }, { .name = "unc_cbo_xsnp_response.miss_eviction", .event = "umask=0x81,event=0x22", .desc = "Unit: uncore_cbox A cross-core snoop resulted ...", .topic = "uncore", .long_desc = "A cross-core snoop resulted from L3 ...", .pmu = "uncore_cbox", }, { .name = "eist_trans", .event = "umask=0x0,period=200000,event=0x3a", .desc = "Number of Enhanced Intel SpeedStep(R) ...", .topic = "other", }, { .name = 0, }, }; struct pmu_events_map pmu_events_map[] = { ... { .cpuid = "0x00000000500f0000", .version = "v1", .type = "core", .table = pme_ampere_emag }, ... { .cpuid = "testcpu", .version = "v1", .type = "core", .table = pme_test_cpu, }, { .cpuid = 0, .version = 0, .type = 0, .table = 0, }, }; Signed-off-by: John Garry Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: James Clark Cc: Joakim Zhang Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Will Deacon Cc: linuxarm@huawei.com Link: http://lore.kernel.org/lkml/1584442939-8911-3-git-send-email-john.garry@huawei.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/pmu-events/jevents.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c index 3c4236a5bad8..fa86c5f997cc 100644 --- a/tools/perf/pmu-events/jevents.c +++ b/tools/perf/pmu-events/jevents.c @@ -771,6 +771,19 @@ static void print_mapping_table_suffix(FILE *outfp) fprintf(outfp, "};\n"); } +static void print_mapping_test_table(FILE *outfp) +{ + /* + * Print the terminating, NULL entry. + */ + fprintf(outfp, "{\n"); + fprintf(outfp, "\t.cpuid = \"testcpu\",\n"); + fprintf(outfp, "\t.version = \"v1\",\n"); + fprintf(outfp, "\t.type = \"core\",\n"); + fprintf(outfp, "\t.table = pme_test_cpu,\n"); + fprintf(outfp, "},\n"); +} + static int process_mapfile(FILE *outfp, char *fpath) { int n = 16384; @@ -848,6 +861,7 @@ static int process_mapfile(FILE *outfp, char *fpath) } out: + print_mapping_test_table(outfp); print_mapping_table_suffix(outfp); fclose(mapfp); free(line); @@ -1168,6 +1182,22 @@ int main(int argc, char *argv[]) goto empty_map; } + sprintf(ldirname, "%s/test", start_dirname); + + rc = nftw(ldirname, process_one_file, maxfds, 0); + if (rc && verbose) { + pr_info("%s: Error walking file tree %s rc=%d for test\n", + prog, ldirname, rc); + goto empty_map; + } else if (rc < 0) { + /* Make build fail */ + free_arch_std_events(); + ret = 1; + goto out_free_mapfile; + } else if (rc) { + goto empty_map; + } + if (close_table) print_events_table_suffix(eventsfp); -- 2.21.1