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Mon, 20 Jul 2026 16:23:35 -0700 (PDT) Received: from [192.168.1.128] ([38.15.57.99]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7edaf9d5b4fsm9145613a34.24.2026.07.20.16.23.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 20 Jul 2026 16:23:34 -0700 (PDT) Message-ID: <3be08875-83c9-48af-a86f-58e9e8ab7ff6@linuxfoundation.org> Date: Mon, 20 Jul 2026 17:23:31 -0600 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/3] cpupower: Add generic CPPC performance display To: Jeremy Linton , Thorsten Leemhuis , linux-pm@vger.kernel.org Cc: trenn@suse.com, shuah@kernel.org, jwyatt@redhat.com, jkacur@redhat.com, kaushlendra.kumar@intel.com, sashal@kernel.org, fj5851bi@fujitsu.com, rui.zhang@intel.com, linux-kernel@vger.kernel.org, Shuah Khan References: <20260709221344.1919794-1-jeremy.linton@arm.com> <20260709221344.1919794-2-jeremy.linton@arm.com> <611fb9db-6263-4e53-a2cf-9ec35ae8ef17@arm.com> Content-Language: en-US From: Shuah Khan In-Reply-To: <611fb9db-6263-4e53-a2cf-9ec35ae8ef17@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 7/20/26 12:33, Jeremy Linton wrote: > Hi, > > On 7/18/26 1:12 AM, Thorsten Leemhuis wrote: >> On 7/10/26 00:13, Jeremy Linton wrote: >>> Arm64 machines, and possibly others, use the standard ACPI defined CPPC >>> infrastructure. cpupower has CPPC support, but it's largely written >>> around the intricacies of AMD processors, using platform MSRs to avoid >>> shortcomings in the specification. > > Patch to fix it. > > https://lkml.org/lkml/2026/7/20/2191 > Thank you both. Applied the fix to https://web.git.kernel.org/pub/scm/linux/kernel/git/shuah/linux.git/log/?h=cpupower thanks, -- Shuah