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To: "Shinji Nomoto (Fujitsu)" , "'John B. Wyatt IV'" Cc: Thomas Renninger , Shuah Khan , John Kacur , "linux-pm@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Shuah Khan References: <20250522061122.2149188-1-fj5851bi@fujitsu.com> Content-Language: en-US From: Shuah Khan In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 6/3/25 01:16, Shinji Nomoto (Fujitsu) wrote: > John Wyatt wrote: >> Hello Shinji, ty for your patch. >> >> On Thu, May 22, 2025 at 03:10:57PM +0900, Shinji Nomoto wrote: >>> The cpufreq subsystem has a generic sysfs interface for controlling >>> boost (/sys/devices/system/cpu/cpufreq/boost). >>> The sysfs interface can be used to enable boost control from the >>> cpupower command on non-x86 platforms as well. So, allow boost >>> controlling on >>> non-x86 system if boost sysfs file exists. >> >> Did you test this on non-x86 systems? If so, would you please provide details on those architectures and systems? > > Hello, > > This patch has been tested on Arm-based systems. > > * It was tested on our internal simulator based on QEMU which supports boost. > * It was tested on the Nvidia grace system (which does not support boost). > * The cppc_cpufreq driver is working on both of the above systems. > > We have also confirmed that it continues to work as expected on AMD systems. > John, Let me know if you are good with this testing details. thanks, -- Shuah