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

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Message-ID: <c13f3ab8-eaf6-4efa-b06c-96dd2237165d@amd.com>
Date:   Mon, 14 Aug 2023 20:46:41 -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 7:03 PM, Shuah Khan wrote:
> On 8/14/23 17:33, Limonciello, Mario wrote:
>>
>>
>> On 8/14/2023 6:22 PM, Shuah Khan wrote:
>>> On 8/14/23 15:50, Limonciello, Mario wrote:
>>>>
>>>>
>>>> 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?
>>>
>>> If it is already fixed, there is no need to revert and apply your fix.
>>> Please close the bugzilla bug as fixed with the above commit.
>>
>> Sorry I was unclear. My suggestion was that perhaps a1cf97c2d43ae 
>> should be considered alone for 6.5-rc7 instead of waiting for 6.6-rc1 
>> as it fixes the Bugzilla issue.  Otherwise we should wait until it's 
>> in Linus' tree for 6.6-rc1 to close the Bugzilla.
> 
> Got it. There isn't enough time now to get this to flow through
> my workflow and then into pm workflow. Since the bug is fixed
> in linux-next, it will go inot Linux 6.6-rc1. Then it can go into
> stables.
> 

Got it.  In that case can you add the Fixes and CC: 
stable@...r.kernel.org tags to the correct commit in your branch so that 
all that happens automatically during 6.6's merge window?