From nobody Tue Dec 23 12:37:41 2025 Received: from mail-yw1-f201.google.com (mail-yw1-f201.google.com [209.85.128.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2F0A6130E35 for ; Thu, 7 Mar 2024 17:40:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709833236; cv=none; b=O216XiwJKTLFkCKKx6PuLdjiCqmLrRSqZNQBS/Mvp/WIe0FBHkriHXjb/riD7YugiDln+eg4mZmc0HdErTsapPqAiXC1PPln99NtBY2/tLZw9XldPtE90cj7+WYQU9gpNm7wtRS+8uZAO0E1NIHjD2Yf1BIrT/KYkdY7ROVQsCk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709833236; c=relaxed/simple; bh=qRbM4J1nMnCOTtjpsDerekpdTUM2CRL3YgboxCf8VXI=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=XadTKd5LQ4xPhAJAdgj95kHEECULFwE38HUK8nHM4BEDmUv2dVcaE/YseocfzLGIM3D5yFybbeh2JXA1aiBGL5UUYJ+r4AhT8VgQAEr++euGeiWx13nihe4K/gjG/PBxtUWKGufMJ47gqaDgt3alR28fLDw+hnMz2OXOju2Icyo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=mUHzOig9; arc=none smtp.client-ip=209.85.128.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="mUHzOig9" Received: by mail-yw1-f201.google.com with SMTP id 00721157ae682-609db871b90so673027b3.1 for ; Thu, 07 Mar 2024 09:40:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1709833234; x=1710438034; darn=vger.kernel.org; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=WnCRzMIwEmUWcP4taw0TGh+kO0P1YkAyutoR+GaoeIk=; b=mUHzOig98qznQjWKBadckcenh3qg3aKvQVTDtj/TVY0/C4fjjSlciDtKP8P1qw6l0D aoUZZ4R3kzQdlTnxbc32Yts/30FCEeJRV4joc4KGIKXaov/E0noIR7KfR8+FVB7pcx3p Ip7v2O3ahgWvzvO5Hd8/acMn80Z1PvM0fKiXcv+hdRke2cyxR8nCP4teH1kU9oZJyd32 eDSkG6d8Aheu8RJIPuxhTOk0UZ2y8BisL/kLQHgqB4WwSMXXSRorxZaQLNppp/oK6lPi McCHTJgMmTnmhhLcm1UYIOPHWZsqlfR0OvJUYQ46R8F9Ng6JkMnHitkoSbcQUvrcE+zD CIiw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709833234; x=1710438034; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=WnCRzMIwEmUWcP4taw0TGh+kO0P1YkAyutoR+GaoeIk=; b=KrDkcZFPyYD5qjTxzKmudoBDOYEnZVnqWs/fhuxuKbzTI5A7UCrB7FhjE0s4mEk4j0 al4XOwg+GjPo9D2B9oHsmDRhTDON5mkVUmqm0/EvUsay6nE8u1k63UJ3Wi5xq8VEPtIi 5wAeGS/hpNKAps8mM5xg5E4P6iMKbilykaK4qs4tQ98VnGVH1hFt1bpx76Lx0RECZwO4 /57+YqivlTfNu73K+CHAd2NSmGNbiyxRSCpHJ3k20FWqTqsNit/ZB1EC1F9hTgL8WoPg xJCiCIAppBVugZbUhhUh+cQLQ9WTA4G8I6ltgavUc9iafIlp9rZ+Ly0l9PaxoXronXtu rHFA== X-Forwarded-Encrypted: i=1; AJvYcCWjBP9haO7si82IP5Kd3EcszxYBPPksYSmGBxlcg6fsrBZ8I3gFQYHPcoWLy3OulXLMwb4GPwnEjx4S6+7gqypE3GoKUX2U05bpTkg+ X-Gm-Message-State: AOJu0Yz5aQnNkx08eT+WfpW2rk5C2Y/eowWR/oRwajPmdyakpfCSdkN8 BphKO0HcGvzFJMssL1Y3sb9hDm8RNL3NA1tDKuhfPdbWvyS6vRSo6T1txdUqyw0mw63O+hLVqDl gXLjRHA== X-Google-Smtp-Source: AGHT+IEhh6Kp6uBn3S698WNWsAUPCqlRZBKy0FEY2SEfrml6jP5P0/i9mnZTMpgvkkcp7d7UPnOxJpU2jx1u X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:47d6:1de1:237a:6728]) (user=irogers job=sendgmr) by 2002:a25:abad:0:b0:dcb:abcc:62be with SMTP id v42-20020a25abad000000b00dcbabcc62bemr4788790ybi.6.1709833234407; Thu, 07 Mar 2024 09:40:34 -0800 (PST) Date: Thu, 7 Mar 2024 09:39:54 -0800 In-Reply-To: <20240307173955.3982040-1-irogers@google.com> Message-Id: <20240307173955.3982040-6-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240307173955.3982040-1-irogers@google.com> X-Mailer: git-send-email 2.44.0.278.ge034bb2e1d-goog Subject: [PATCH v2 5/6] perf tools: Use pmus to describe type from attribute From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Yang Jihong , Kan Liang , James Clark , Ravi Bangoria , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" When dumping a perf_event_attr, use pmus to find the PMU and its name by the type number. This allows dynamically added PMUs to be described. Before: ``` $ perf stat -vv -e data_read true ... perf_event_attr: type 24 size 136 config 0x20ff sample_type IDENTIFIER read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING disabled 1 inherit 1 exclude_guest 1 ... ``` After: ``` $ perf stat -vv -e data_read true ... perf_event_attr: type 24 (uncore_imc_free_running_0) size 136 config 0x20ff sample_type IDENTIFIER read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING disabled 1 inherit 1 exclude_guest 1 ... ``` However, it also means that when we have a PMU name we prefer it to a hard coded name: Before: ``` $ perf stat -vv -e faults true ... perf_event_attr: type 1 (PERF_TYPE_SOFTWARE) size 136 config 0x2 (PERF_COUNT_SW_PAGE_FAULTS) sample_type IDENTIFIER read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING disabled 1 inherit 1 enable_on_exec 1 exclude_guest 1 ... ``` After: ``` $ perf stat -vv -e faults true ... perf_event_attr: type 1 (software) size 136 config 0x2 (PERF_COUNT_SW_PAGE_FAULTS) sample_type IDENTIFIER read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING disabled 1 inherit 1 enable_on_exec 1 exclude_guest 1 ... ``` It feels more consistent to do this, rather than only prefer a PMU name when a hard coded name isn't available. Signed-off-by: Ian Rogers --- tools/perf/util/perf_event_attr_fprintf.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/tools/perf/util/perf_event_attr_fprintf.c b/tools/perf/util/pe= rf_event_attr_fprintf.c index 8f04d3b7f3ec..29e66835da3a 100644 --- a/tools/perf/util/perf_event_attr_fprintf.c +++ b/tools/perf/util/perf_event_attr_fprintf.c @@ -7,6 +7,8 @@ #include #include #include "util/evsel_fprintf.h" +#include "util/pmu.h" +#include "util/pmus.h" #include "trace-event.h" =20 struct bit_names { @@ -75,9 +77,12 @@ static void __p_read_format(char *buf, size_t size, u64 = value) } =20 #define ENUM_ID_TO_STR_CASE(x) case x: return (#x); -static const char *stringify_perf_type_id(u64 value) +static const char *stringify_perf_type_id(struct perf_pmu *pmu, u32 type) { - switch (value) { + if (pmu) + return pmu->name; + + switch (type) { ENUM_ID_TO_STR_CASE(PERF_TYPE_HARDWARE) ENUM_ID_TO_STR_CASE(PERF_TYPE_SOFTWARE) ENUM_ID_TO_STR_CASE(PERF_TYPE_TRACEPOINT) @@ -175,9 +180,9 @@ do { \ #define print_id_unsigned(_s) PRINT_ID(_s, "%"PRIu64) #define print_id_hex(_s) PRINT_ID(_s, "%#"PRIx64) =20 -static void __p_type_id(char *buf, size_t size, u64 value) +static void __p_type_id(struct perf_pmu *pmu, char *buf, size_t size, u64 = value) { - print_id_unsigned(stringify_perf_type_id(value)); + print_id_unsigned(stringify_perf_type_id(pmu, value)); } =20 static void __p_config_hw_id(char *buf, size_t size, u64 value) @@ -246,7 +251,7 @@ static void __p_config_id(char *buf, size_t size, u32 t= ype, u64 value) #define p_sample_type(val) __p_sample_type(buf, BUF_SIZE, val) #define p_branch_sample_type(val) __p_branch_sample_type(buf, BUF_SIZE, va= l) #define p_read_format(val) __p_read_format(buf, BUF_SIZE, val) -#define p_type_id(val) __p_type_id(buf, BUF_SIZE, val) +#define p_type_id(val) __p_type_id(pmu, buf, BUF_SIZE, val) #define p_config_id(val) __p_config_id(buf, BUF_SIZE, attr->type, val) =20 #define PRINT_ATTRn(_n, _f, _p, _a) \ @@ -262,6 +267,7 @@ do { \ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr, attr__fprintf_f attr__fprintf, void *priv) { + struct perf_pmu *pmu =3D perf_pmus__find_by_type(attr->type); char buf[BUF_SIZE]; int ret =3D 0; =20 --=20 2.44.0.278.ge034bb2e1d-goog