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Message-ID: Date: Mon, 15 Aug 2022 16:29:32 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.12.0 Subject: Re: [PATCH v2 02/13] cpufreq: Add perf_freq to cpuinfo Content-Language: en-US To: Jason Andryuk Cc: Andrew Cooper , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= , Wei Liu , xen-devel@lists.xenproject.org References: <20220810192944.102135-1-jandryuk@gmail.com> <20220810192944.102135-3-jandryuk@gmail.com> From: Jan Beulich In-Reply-To: <20220810192944.102135-3-jandryuk@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: FR3P281CA0043.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:4a::15) To VE1PR04MB6560.eurprd04.prod.outlook.com (2603:10a6:803:122::25) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 9a9bc3a4-4f78-484b-168d-08da7eca92e9 X-MS-TrafficTypeDiagnostic: DB8PR04MB5884:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Settings max_freq to base_freq > "works" but the code is not obvious, and returning values to userspace > is tricky. Add an additonal perf_freq member which is used for scaling > aperf/mperf measurements. > > Signed-off-by: Jason Andryuk > --- > I don't like this, but it seems the best way to re-use the common > aperf/mperf code. The other option would be to add wrappers that then > do the acpi vs. hwp scaling. I think that's okay-ish, so Acked-by: Jan Beulich Jan