From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C195B196C8C; Thu, 6 Jun 2024 14:09:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717682955; cv=none; b=qA+/ve2sgFoe8vvwSW05he4mLYN1hqSsx5Vf8Z0yxDAjAyW77b5eqmOqT5QzDUJOihAImgzzhDnbmA3O2EVGK3scCTFs1V3Utvrm4ZLLR7rF132AqOct6Wsp/3fwh6YtjolEkmhxU882g3xg+3YKYicgB9QUM2QQ/n28xIfzylA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717682955; c=relaxed/simple; bh=DKsPLVAuv+WdICCIgEI7IXVGAsBluuHyTHZLYvBdgdU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bwccz9qHg6xUcL/03WAHCZnv/UgV5IYf1S5WqEtrcR5jYKzlrGTxYpQUHVKB/R9pbOUz+/f1Q9vwpKm3fYlBHvEDqjIkg1samJbcpJkeknh6vm9yEOSbkTpS1NTedsxKFk3mIImGKVwIXxX5J7Y2S41FfcXYkhCSVRF4pexTKwk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=OOoU/2uI; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="OOoU/2uI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9CD6DC2BD10; Thu, 6 Jun 2024 14:09:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1717682955; bh=DKsPLVAuv+WdICCIgEI7IXVGAsBluuHyTHZLYvBdgdU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OOoU/2uIzRMJANDES/ifyFZprjPbtyhYc2K+U+ZsqC1bk9GkLEPi6K7z6R13NgmYU Q04dJvGEwt26Wuz7bKjuxULDlz3Jc2pAacfeq2SnYc3I1KOSPR9GwFcuGIACOs49XZ 1laBygW6vrdbtm7O0VXMP4dyrM64x4IJzuzBUcQc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ian Rogers , Arnaldo Carvalho de Melo , Kan Liang , Adrian Hunter , Alexander Shishkin , Ingo Molnar , James Clark , Jiri Olsa , Mark Rutland , Namhyung Kim , Peter Zijlstra , Ravi Bangoria , Yang Jihong , Sasha Levin Subject: [PATCH 6.9 122/374] perf tools: Use pmus to describe type from attribute Date: Thu, 6 Jun 2024 16:01:41 +0200 Message-ID: <20240606131656.002910566@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240606131651.683718371@linuxfoundation.org> References: <20240606131651.683718371@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ian Rogers [ Upstream commit 7093882067e2e2f88d3449c35c5f0f3f566c8a26 ] 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 Tested-by: Arnaldo Carvalho de Melo Tested-by: Kan Liang Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Yang Jihong Link: https://lore.kernel.org/r/20240308001915.4060155-6-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo Stable-dep-of: d9c5f5f94c2d ("perf pmu: Count sys and cpuid JSON events separately") Signed-off-by: Sasha Levin --- 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/perf_event_attr_fprintf.c index 8f04d3b7f3ec7..29e66835da3a7 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" struct bit_names { @@ -75,9 +77,12 @@ static void __p_read_format(char *buf, size_t size, u64 value) } #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) -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)); } 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 type, 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, val) #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) #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 = perf_pmus__find_by_type(attr->type); char buf[BUF_SIZE]; int ret = 0; -- 2.43.0