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Tue, 1 Sep 2020 22:10:15 +0000 From: Kim Phillips To: Arnaldo Carvalho de Melo , kim.phillips@amd.com Cc: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Vijay Thakkar , Andi Kleen , John Garry , Kan Liang , Yunfeng Ye , Jin Yao , =?UTF-8?q?Martin=20Li=C5=A1ka?= , Borislav Petkov , Jon Grimm , Martin Jambor , Michael Petlan , William Cohen , Stephane Eranian , Ian Rogers , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/4] perf vendor events amd: Add ITLB Instruction Fetch Hits event for zen1 Date: Tue, 1 Sep 2020 17:09:42 -0500 Message-Id: <20200901220944.277505-2-kim.phillips@amd.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200901220944.277505-1-kim.phillips@amd.com> References: <20200901220944.277505-1-kim.phillips@amd.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-ClientProxiedBy: DM3PR03CA0002.namprd03.prod.outlook.com (2603:10b6:0:50::12) To BN8PR12MB2946.namprd12.prod.outlook.com (2603:10b6:408:9d::13) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from 255.255.255.255 (255.255.255.255) by DM3PR03CA0002.namprd03.prod.outlook.com (2603:10b6:0:50::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3326.19 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: uf7DH2/Bd/BoQvY6MzWceTpiE3rBug0//g4T27u1hIX8nrc5JHyBqHEHaBYHVZQve+rbtqYHwXBNaiWTfn/rPR8vxJlRtZvDzZ9SsTWsOYaVNutXvjofj6hi3CvBX6lE9cVqj3gQ4Zt6I8OL7UKpfuUMQOhVbvrM1mtM5BT+7W8zhLUhZm2+gp+Y5UZeHvdYer9zA5WZR3iDlzINeAUHOLssrwe0ZXs8BU1bvoaiR0gkp/GdJdVrkWh/AFTZcQ9rCSnqZnTF+14dGVBG2mEy2Ih0N7KJcCrUABHt04mVz+wGPHZlmZtODvPp08Jf867uegn49c7OBRoYMhYvUrLVmzgz0dMTNDa+NOxxJiB0378SQpjkASWJq+TIEcez/Q/DTanP9C4t0lUgHIEQw6R3vCnpIJVAmHZggcHk23Sqi1VTuLe8LUvkXTbelrhrmA03Pl6UOLHe/XH13nOdC8sKgGfMbCWfqF/tGNUAIWkzvsrYVOD9nbbDKVdG+NARyfeYoFAZlIIMlhmt9HemqH7GI6g1P/Wq22wcdH4j7rEs/tODieFFgdleO/WxykxpO8DtbJdNUum1HW1a+8ulQnMgjz/2icBRj+f5soYDaJe9LK1YdsUnXSN1uHMIuEh3w7o9p0jKU2or3KkebgmO0PI4KA== X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: eb340166-9f69-4156-8f58-08d84ec3cdc0 X-MS-Exchange-CrossTenant-AuthSource: BN8PR12MB2946.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Sep 2020 22:10:15.2152 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: aLMSbXzi86hVzZ1ANbQNJetVIf2PiO2YaSnGHNIbfA+CgaeErsYboCVtH/ImeRV5CvsOdVGeRo9AHj9koq0ZSg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR1201MB0148 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The ITLB Instruction Fetch Hits event isn't documented even in later zen1 PPRs, but it seems to count correctly on zen1 hardware. Add it to zen1 group so zen1 users can use the upcoming IC Fetch Miss Ratio Metric. The IF1G, 1IF2M, IF4K (Instruction fetches to a 1 GB, 2 MB, and 4K page) unit masks are not added because unlike zen2 hardware, zen1 hardware counts all its unit masks with a 0 unit mask according to the old convention: zen1$ perf stat -e cpu/event=0x94/,cpu/event=0x94,umask=0xff/ sleep 1 Performance counter stats for 'sleep 1': 211,318 cpu/event=0x94/u 211,318 cpu/event=0x94,umask=0xff/u Rome/zen2: zen2$ perf stat -e cpu/event=0x94/,cpu/event=0x94,umask=0xff/ sleep 1 Performance counter stats for 'sleep 1': 0 cpu/event=0x94/u 190,744 cpu/event=0x94,umask=0xff/u Signed-off-by: Kim Phillips Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Arnaldo Carvalho de Melo Cc: Mark Rutland Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Namhyung Kim Cc: Vijay Thakkar Cc: Andi Kleen Cc: John Garry Cc: Kan Liang Cc: Yunfeng Ye Cc: Jin Yao Cc: "Martin Liška" Cc: Borislav Petkov Cc: Jon Grimm Cc: Martin Jambor Cc: Michael Petlan Cc: William Cohen Cc: Stephane Eranian Cc: Ian Rogers Cc: linux-perf-users@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- tools/perf/pmu-events/arch/x86/amdzen1/branch.json | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/tools/perf/pmu-events/arch/x86/amdzen1/branch.json b/tools/perf/pmu-events/arch/x86/amdzen1/branch.json index a9943eeb8d6b..4ceb67a0db21 100644 --- a/tools/perf/pmu-events/arch/x86/amdzen1/branch.json +++ b/tools/perf/pmu-events/arch/x86/amdzen1/branch.json @@ -19,5 +19,10 @@ "EventName": "bp_de_redirect", "EventCode": "0x91", "BriefDescription": "Decoder Overrides Existing Branch Prediction (speculative)." + }, + { + "EventName": "bp_l1_tlb_fetch_hit", + "EventCode": "0x94", + "BriefDescription": "The number of instruction fetches that hit in the L1 ITLB." } ] -- 2.27.0