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Date: Thu, 16 Jun 2022 16:27:32 +0800
From: Huang Rui <ray.huang@....com>
To: Shuah Khan <skhan@...uxfoundation.org>
Cc: "Meng, Li (Jassmine)" <Li.Meng@....com>,
"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
"Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
"Fontenot, Nathan" <Nathan.Fontenot@....com>,
"Sharma, Deepak" <Deepak.Sharma@....com>,
"Deucher, Alexander" <Alexander.Deucher@....com>,
"Limonciello, Mario" <Mario.Limonciello@....com>,
"Su, Jinzhou (Joe)" <Jinzhou.Su@....com>,
"Yuan, Perry" <Perry.Yuan@....com>,
"Du, Xiaojian" <Xiaojian.Du@....com>,
Viresh Kumar <viresh.kumar@...aro.org>,
Borislav Petkov <bp@...en8.de>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V8 0/4] Add unit test module for AMD P-State driver
On Fri, Jun 10, 2022 at 04:28:27AM +0800, Shuah Khan wrote:
> On 5/26/22 9:44 AM, Shuah Khan wrote:
> > On 5/25/22 9:47 PM, Meng Li wrote:
> >> Hi all:
> >>
> >> AMD P-State unit test(amd-pstate-ut) is a kernel module for testing
> >> the functions of amd-pstate driver.
> >> It could import as a module to launch some test tasks.
> >> 1) It can help all users to verify their processor support (SBIOS/
> >> Firmware or Hardware).
> >> 2) Kernel can have a basic function test to avoid the kernel regression
> >> during the update.
> >> 3) We can introduce more functional or performance tests to align the
> >> together, it will benefit power and performance scale optimization.
> >>
> >> We upstream out AMD P-state driver into Linux kernel and use this unit
> >> test module to verify the required conditions and basic functions of
> >> amd-pstate before integration test.
> >>
> >> We use test module in the kselftest frameworks to implement it.
> >> We create amd-pstate-ut module and tie it into kselftest.
> >>
> >> For example: The test case aput_acpi_cpc is used to check whether the
> >> _CPC object is exist in SBIOS.
> >> The amd-pstate initialization will fail if the _CPC in ACPI SBIOS is not
> >> existed at the detected processor, so it is a necessary condition.
> >>
> >> At present, it only implements the basic framework and some simple test
> >> cases.
> >>
> >> TODO : 1) we will add more test cases to improve the depth and coverage of
> >> the test. E.X. use the script to trigger the tbench, gitsource, kernbench,
> >> netperf, speedometer, and etc. testing and monitor the cpu frequency and
> >> performance goals change, power consumption at runtime.
> >>
> >> Please check the documentation amd-pstate.rst for details of the test steps.
> >>
> >> See patch series in below git repo:
> >> V1: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Flinux-pm%2F20220323071502.2674156-1-li.meng%40amd.com%2F&data=05%7C01%7Cray.huang%40amd.com%7Cca871cbe21d34368046408da4a569d82%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637904033129149948%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=RhdyH9UelmQuEGokmUcPZKla%2FTr1j9GC%2BzC%2BPGD22xo%3D&reserved=0
> >> V2: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Flkml%2F20220413090510.4039589-1-li.meng%40amd.com%2F&data=05%7C01%7Cray.huang%40amd.com%7Cca871cbe21d34368046408da4a569d82%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637904033129149948%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=f8%2BUhVE94oDnm9aWy2Bz9FmV9f2fBwOF%2B%2FfioZCjX5c%3D&reserved=0
> >> V3: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Flkml%2F20220421074152.599419-1-li.meng%40amd.com%2F&data=05%7C01%7Cray.huang%40amd.com%7Cca871cbe21d34368046408da4a569d82%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637904033129149948%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=QOYa%2FjtTrh3sXhMmMBPPIsY12%2BjVG%2B9hn1myQ0HhOpA%3D&reserved=0
> >> V4: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Flkml%2F20220427135315.3447550-1-li.meng%40amd.com%2F&data=05%7C01%7Cray.huang%40amd.com%7Cca871cbe21d34368046408da4a569d82%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637904033129149948%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=e4GBakHlYTqv0dhAUOmPu1CueJceKIjQCZ8OeHhgFqs%3D&reserved=0
> >> V5: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Flkml%2F20220505022913.329259-1-li.meng%40amd.com%2F&data=05%7C01%7Cray.huang%40amd.com%7Cca871cbe21d34368046408da4a569d82%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637904033129149948%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=l3zbZC6SjF0R%2BeAGN%2F32M4FnT16OTDv5FvCfKf%2FXDyw%3D&reserved=0
> >> V6: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Flkml%2F20220519134737.359290-1-li.meng%40amd.com%2F&data=05%7C01%7Cray.huang%40amd.com%7Cca871cbe21d34368046408da4a569d82%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637904033129149948%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=KW5KbwUOe1DReaKRvu2AttcXsCJYYr5zHrB%2FZvxPAYo%3D&reserved=0
> >> V7: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Flkml%2F20220522115423.1147282-1-li.meng%40amd.com%2F&data=05%7C01%7Cray.huang%40amd.com%7Cca871cbe21d34368046408da4a569d82%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637904033129149948%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=JscI%2F69EuDNzZsQMGbgkyF3rAChKJl1nz2sZLxdm5H8%3D&reserved=0
> >>
> >
> >>
> >> Changes from V7 -> V8:
> >> - cpufreq: amd-pstate:
> >> - - amend commit message.
> >> - - amend module description.
> >> - Documentation: amd-pstate:
> >> - - amend commit message.
> >> - - Remove the personal data.
> >>
> >
> > Looks good to me. Thank you.
> >
> > Rafael, Viresh,
> >
> > How do you want to handle this patch series? We are in merge window
> > and this would be for Linux 5.20 based on the changes and content.
> >
> > Would you like to take the entire patch series through your tree, you
> > have my Ack(s) and Reviewed-by(s)
> >
>
> Picking this back up since rc1 is out. How do we want to handle this patch
> series?
>
Rafael, Shuah,
Would you mind to put this patch series in bleeding-edge of linux-pm kernel
tree? Because we have some patches that based on the include/linux/amd-pstate.h
in patch 1 for amd-pstate driver next step.
Thanks,
Ray
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