From patchwork Wed Dec 13 19:51:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Liang, Kan" X-Patchwork-Id: 13491838 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 D3B5AC4332F for ; Wed, 13 Dec 2023 19:53:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=p7r15Jzs2/sFBp/gEOet4srhIkdtEbrxH4uzT8bkorc=; b=0lkRutFRTs2PO3 w1YvhleVgLxE1djmJz1CCc0+e681f7pQTp1n9m5ISFO7hJsZy+1GSmH6o3MmgnViWPDhCAWghLHIV 2Hzl7q6eVYWXmL1AdW+uanAyT64wfgRDw2vY40OnCUozLrO613VY0Dz1IU4aKVxBYEyR5D/VgF9Z3 Kfmyk5eQxdtZS6ti+ZOyJR9VA1SWvSCplku/21ZCTJPRkCa4fz6gvDNNyUtEev0epyagzLg9FrD3L eFa3UUyFT+tlnWYIuqqF18MZRUW3AZ2OuN2srdT8gwiKdWKIR77iWa8rDRDD51OE3b4vMDKEjbSxY 51uPCfKOH8vC0bUFOkTA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rDVHV-00FtRC-29; Wed, 13 Dec 2023 19:52:33 +0000 Received: from mgamail.intel.com ([192.198.163.8]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rDVH9-00Ft50-26 for linux-arm-kernel@lists.infradead.org; Wed, 13 Dec 2023 19:52:19 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1702497132; x=1734033132; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+r6jgbLFvIcWvI4qWiCgNJQ8zB50pDocw0Vw9E2kfy8=; b=VBl/Ka0SuAgL9R16xv6d2613zwdK/UQaIOE++/8G9SL7NVafspSixI3c L8rqatD5/Sp5U9dhUQpeRHUvamNdjzAHni34uQ3atJMh8KsyyOH7zKfQ0 FLHKO5jRDPGGDKzJ/EEFDfNEvvwDBHlPss9HSCJiErh0yApow+4EXOclI Lx0jBDfp/skJle3S1/3muQMcoE2pQZRywoLceFpFGlBXlkLAkg7EXWBVD YJksVToxmtD+J7TUZYY79oSRnuDjv9P45oIpMczHTIt8K86l/IZIAMcfj I6diZ7rmDj2DkYRz+VcnMvP4rw68ZXyWdX93+2vPmuvlULVfOFlT7KUEL w==; X-IronPort-AV: E=McAfee;i="6600,9927,10923"; a="8412928" X-IronPort-AV: E=Sophos;i="6.04,273,1695711600"; d="scan'208";a="8412928" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Dec 2023 11:52:08 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10923"; a="917772569" X-IronPort-AV: E=Sophos;i="6.04,273,1695711600"; d="scan'208";a="917772569" Received: from kanliang-dev.jf.intel.com ([10.165.154.102]) by fmsmga001.fm.intel.com with ESMTP; 13 Dec 2023 11:52:06 -0800 From: kan.liang@linux.intel.com To: acme@kernel.org, irogers@google.com, peterz@infradead.org, mingo@redhat.com, namhyung@kernel.org, jolsa@kernel.org, adrian.hunter@intel.com, john.g.garry@oracle.com, will@kernel.org, james.clark@arm.com, mike.leach@linaro.org, leo.yan@linaro.org, yuhaixin.yhx@linux.alibaba.com, renyu.zj@linux.alibaba.com, tmricht@linux.ibm.com, ravi.bangoria@amd.com, atrajeev@linux.vnet.ibm.com, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Kan Liang Subject: [PATCH V3 4/7] perf mem: Clean up perf_mem_event__supported() Date: Wed, 13 Dec 2023 11:51:51 -0800 Message-Id: <20231213195154.1085945-5-kan.liang@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20231213195154.1085945-1-kan.liang@linux.intel.com> References: <20231213195154.1085945-1-kan.liang@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231213_115211_945670_6826DD3C X-CRM114-Status: GOOD ( 16.50 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Kan Liang For some ARCHs, e.g., ARM and AMD, to get the availability of the mem-events, perf checks the existence of a specific PMU. For the other ARCHs, e.g., Intel and Power, perf has to check the existence of some specific events. The current perf only iterates the mem-events-supported PMUs. It's not required to check the existence of a specific PMU anymore. Rename sysfs_name to event_name, which stores the specific mem-events. Perf only needs to check those events for the availability of the mem-events. Rename perf_mem_event__supported to perf_pmu__mem_events_supported. Reviewed-by: Ian Rogers Tested-by: Ravi Bangoria Signed-off-by: Kan Liang --- tools/perf/arch/arm64/util/mem-events.c | 8 ++++---- tools/perf/arch/powerpc/util/mem-events.c | 8 ++++---- tools/perf/arch/x86/util/mem-events.c | 20 ++++++++++---------- tools/perf/util/mem-events.c | 22 ++++++++++++---------- tools/perf/util/mem-events.h | 2 +- 5 files changed, 31 insertions(+), 29 deletions(-) diff --git a/tools/perf/arch/arm64/util/mem-events.c b/tools/perf/arch/arm64/util/mem-events.c index 96460c46640a..9f8da7937255 100644 --- a/tools/perf/arch/arm64/util/mem-events.c +++ b/tools/perf/arch/arm64/util/mem-events.c @@ -3,10 +3,10 @@ #include "util/mem-events.h" #include "mem-events.h" -#define E(t, n, s, l, a) { .tag = t, .name = n, .sysfs_name = s, .ldlat = l, .aux_event = a } +#define E(t, n, s, l, a) { .tag = t, .name = n, .event_name = s, .ldlat = l, .aux_event = a } struct perf_mem_event perf_mem_events_arm[PERF_MEM_EVENTS__MAX] = { - E("spe-load", "%s/ts_enable=1,pa_enable=1,load_filter=1,store_filter=0,min_latency=%u/", "arm_spe_0", true, 0), - E("spe-store", "%s/ts_enable=1,pa_enable=1,load_filter=0,store_filter=1/", "arm_spe_0", false, 0), - E("spe-ldst", "%s/ts_enable=1,pa_enable=1,load_filter=1,store_filter=1,min_latency=%u/", "arm_spe_0", true, 0), + E("spe-load", "%s/ts_enable=1,pa_enable=1,load_filter=1,store_filter=0,min_latency=%u/", NULL, true, 0), + E("spe-store", "%s/ts_enable=1,pa_enable=1,load_filter=0,store_filter=1/", NULL, false, 0), + E("spe-ldst", "%s/ts_enable=1,pa_enable=1,load_filter=1,store_filter=1,min_latency=%u/", NULL, true, 0), }; diff --git a/tools/perf/arch/powerpc/util/mem-events.c b/tools/perf/arch/powerpc/util/mem-events.c index b7883e38950f..72a6ac2b52f5 100644 --- a/tools/perf/arch/powerpc/util/mem-events.c +++ b/tools/perf/arch/powerpc/util/mem-events.c @@ -2,10 +2,10 @@ #include "map_symbol.h" #include "mem-events.h" -#define E(t, n, s, l, a) { .tag = t, .name = n, .sysfs_name = s, .ldlat = l, .aux_event = a } +#define E(t, n, s, l, a) { .tag = t, .name = n, .event_name = s, .ldlat = l, .aux_event = a } struct perf_mem_event perf_mem_events_power[PERF_MEM_EVENTS__MAX] = { - E("ldlat-loads", "%s/mem-loads/", "cpu/events/mem-loads", false, 0), - E("ldlat-stores", "%s/mem-stores/", "cpu/events/mem-stores", false, 0), - E(NULL, NULL, NULL, false, 0), + E("ldlat-loads", "%s/mem-loads/", "mem-loads", false, 0), + E("ldlat-stores", "%s/mem-stores/", "mem-stores", false, 0), + E(NULL, NULL, NULL, false, 0), }; diff --git a/tools/perf/arch/x86/util/mem-events.c b/tools/perf/arch/x86/util/mem-events.c index f0e66a0151a0..b776d849fc64 100644 --- a/tools/perf/arch/x86/util/mem-events.c +++ b/tools/perf/arch/x86/util/mem-events.c @@ -9,24 +9,24 @@ #define MEM_LOADS_AUX 0x8203 -#define E(t, n, s, l, a) { .tag = t, .name = n, .sysfs_name = s, .ldlat = l, .aux_event = a } +#define E(t, n, s, l, a) { .tag = t, .name = n, .event_name = s, .ldlat = l, .aux_event = a } struct perf_mem_event perf_mem_events_intel[PERF_MEM_EVENTS__MAX] = { - E("ldlat-loads", "%s/mem-loads,ldlat=%u/P", "%s/events/mem-loads", true, 0), - E("ldlat-stores", "%s/mem-stores/P", "%s/events/mem-stores", false, 0), - E(NULL, NULL, NULL, false, 0), + E("ldlat-loads", "%s/mem-loads,ldlat=%u/P", "mem-loads", true, 0), + E("ldlat-stores", "%s/mem-stores/P", "mem-stores", false, 0), + E(NULL, NULL, NULL, false, 0), }; struct perf_mem_event perf_mem_events_intel_aux[PERF_MEM_EVENTS__MAX] = { - E("ldlat-loads", "{%s/mem-loads-aux/,%s/mem-loads,ldlat=%u/}:P", "%s/events/mem-loads", true, MEM_LOADS_AUX), - E("ldlat-stores", "%s/mem-stores/P", "%s/events/mem-stores", false, 0), - E(NULL, NULL, NULL, false, 0), + E("ldlat-loads", "{%s/mem-loads-aux/,%s/mem-loads,ldlat=%u/}:P", "mem-loads", true, MEM_LOADS_AUX), + E("ldlat-stores", "%s/mem-stores/P", "mem-stores", false, 0), + E(NULL, NULL, NULL, false, 0), }; struct perf_mem_event perf_mem_events_amd[PERF_MEM_EVENTS__MAX] = { - E(NULL, NULL, NULL, false, 0), - E(NULL, NULL, NULL, false, 0), - E("mem-ldst", "%s//", "ibs_op", false, 0), + E(NULL, NULL, NULL, false, 0), + E(NULL, NULL, NULL, false, 0), + E("mem-ldst", "%s//", NULL, false, 0), }; bool is_mem_loads_aux_event(struct evsel *leader) diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c index 51e53e33df03..32890848bb3d 100644 --- a/tools/perf/util/mem-events.c +++ b/tools/perf/util/mem-events.c @@ -17,12 +17,12 @@ unsigned int perf_mem_events__loads_ldlat = 30; -#define E(t, n, s, l, a) { .tag = t, .name = n, .sysfs_name = s, .ldlat = l, .aux_event = a } +#define E(t, n, s, l, a) { .tag = t, .name = n, .event_name = s, .ldlat = l, .aux_event = a } struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX] = { - E("ldlat-loads", "%s/mem-loads,ldlat=%u/P", "cpu/events/mem-loads", true, 0), - E("ldlat-stores", "%s/mem-stores/P", "cpu/events/mem-stores", false, 0), - E(NULL, NULL, NULL, false, 0), + E("ldlat-loads", "%s/mem-loads,ldlat=%u/P", "mem-loads", true, 0), + E("ldlat-stores", "%s/mem-stores/P", "mem-stores", false, 0), + E(NULL, NULL, NULL, false, 0), }; #undef E @@ -151,15 +151,17 @@ int perf_pmu__mem_events_parse(struct perf_pmu *pmu, const char *str) return -1; } -static bool perf_mem_event__supported(const char *mnt, struct perf_pmu *pmu, +static bool perf_pmu__mem_events_supported(const char *mnt, struct perf_pmu *pmu, struct perf_mem_event *e) { - char sysfs_name[100]; char path[PATH_MAX]; struct stat st; - scnprintf(sysfs_name, sizeof(sysfs_name), e->sysfs_name, pmu->name); - scnprintf(path, PATH_MAX, "%s/devices/%s", mnt, sysfs_name); + if (!e->event_name) + return true; + + scnprintf(path, PATH_MAX, "%s/devices/%s/events/%s", mnt, pmu->name, e->event_name); + return !stat(path, &st); } @@ -182,7 +184,7 @@ int perf_pmu__mem_events_init(struct perf_pmu *pmu) if (!e->tag) continue; - e->supported |= perf_mem_event__supported(mnt, pmu, e); + e->supported |= perf_pmu__mem_events_supported(mnt, pmu, e); if (e->supported) found = true; } @@ -234,7 +236,7 @@ int perf_mem_events__record_args(const char **rec_argv, int *argv_nr, } else { const char *s = perf_pmu__mem_events_name(j, pmu); - if (!perf_mem_event__supported(mnt, pmu, e)) + if (!perf_pmu__mem_events_supported(mnt, pmu, e)) continue; rec_argv[i++] = "-e"; diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h index 79d342768d12..f817a507b106 100644 --- a/tools/perf/util/mem-events.h +++ b/tools/perf/util/mem-events.h @@ -18,7 +18,7 @@ struct perf_mem_event { u32 aux_event; const char *tag; const char *name; - const char *sysfs_name; + const char *event_name; }; struct mem_info {