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Wed, 10 Sep 2025 03:39:53 +0000 Message-ID: Date: Tue, 9 Sep 2025 20:39:51 -0700 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v9 18/31] x86,fs/resctrl: Fill in details of events for guid 0x26696143 and 0x26557651 To: Tony Luck , Fenghua Yu , "Maciej Wieczor-Retman" , Peter Newman , James Morse , Babu Moger , Drew Fustini , Dave Martin , Chen Yu CC: , , References: <20250829193346.31565-1-tony.luck@intel.com> <20250829193346.31565-19-tony.luck@intel.com> From: Reinette Chatre Content-Language: en-US In-Reply-To: <20250829193346.31565-19-tony.luck@intel.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MW2PR2101CA0035.namprd21.prod.outlook.com (2603:10b6:302:1::48) To SJ2PR11MB7573.namprd11.prod.outlook.com (2603:10b6:a03:4d2::10) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ2PR11MB7573:EE_|SJ5PPF66B2E927F:EE_ X-MS-Office365-Filtering-Correlation-Id: d64a0db2-0015-4e14-37c9-08ddf01bb3e5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014|13003099007; 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"The offsets" -> "The event counter offsets"? > > E.g the "energy" counters for guid 0x26696143 are arranged like this: > > MMIO offset:0x0000 Counter for RMID 0 PMT_EVENT_ENERGY > MMIO offset:0x0008 Counter for RMID 0 PMT_EVENT_ACTIVITY > MMIO offset:0x0010 Counter for RMID 1 PMT_EVENT_ENERGY > MMIO offset:0x0018 Counter for RMID 1 PMT_EVENT_ACTIVITY > ... > MMIO offset:0x23F0 Counter for RMID 575 PMT_EVENT_ENERGY > MMIO offset:0x23F8 Counter for RMID 575 PMT_EVENT_ACTIVITY To help understand the added XML_MMIO_SIZE() macro I think it will be helpful to mention the status registers and add them in the above depiction. > > Define these events in the file system code and add the events > to the event_group structures. > > PMT_EVENT_ENERGY and PMT_EVENT_ACTIVITY are produced in fixed point > format. File system code must output as floating point values. > > Signed-off-by: Tony Luck > --- Code looks good to me. Reinette