linux-kernel - Re: [PATCH] cpupower: Fix querying boost support for amd-pstate-epp mode

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Message-ID: <696c34d0-3de0-4f56-8003-eac872298605@amd.com>
Date:   Mon, 14 Aug 2023 16:50:49 -0500
From:   "Limonciello, Mario" <mario.limonciello@....com>
To:     Shuah Khan <skhan@...uxfoundation.org>,
        Huang Rui <ray.huang@....com>
Cc:     "Yuan, Perry" <Perry.Yuan@....com>,
        "Karny, Wyes" <Wyes.Karny@....com>,
        "trenn@...e.com" <trenn@...e.com>,
        "shuah@...nel.org" <shuah@...nel.org>,
        "rafael.j.wysocki@...el.com" <rafael.j.wysocki@...el.com>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "chenhq2005@...il.com" <chenhq2005@...il.com>
Subject: Re: [PATCH] cpupower: Fix querying boost support for amd-pstate-epp
 mode



On 8/14/2023 4:28 PM, Shuah Khan wrote:
> On 8/13/23 22:14, Huang Rui wrote:
>> On Sat, Aug 12, 2023 at 05:35:01AM +0800, Limonciello, Mario wrote:
>>> When running in active mode the driver for amd-pstate has -epp appended.
>>> This throws off amd-pstate detection.
>>>
>>> To detect amd-pstate look for the prefix instead.
>>>
>>> Fixes: ffa5096a7c33 ("cpufreq: amd-pstate: implement Pstate EPP 
>>> support for the AMD processors")
>>> Reported-by: chenhq2005@...il.com
>>> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217755
>>> Signed-off-by: Mario Limonciello <mario.limonciello@....com>
>>
>> Acked-by: Huang Rui <ray.huang@....com>
>>
> 
> This patch doesn't apply on top of cpupower latest:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux.git coupower
> 
> Please rebase and send it.
> 
> thanks,
> -- Shuah
> 

It looks like a variation of it is already in your tree as:

a1cf97c2d43ae ("cpupower: Recognise amd-pstate active mode driver")

Considering it was also reported to a kernel bugzilla, perhaps this 
should be considered for fixes?