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From: "Shen, Yijun" <Yijun.Shen@dell.com>
To: "Limonciello, Mario" <mario.limonciello@amd.com>,
        Lyndon Sanche
	<lsanche@lyndeno.ca>
CC: "pali@kernel.org" <pali@kernel.org>, "W_Armin@gmx.de" <W_Armin@gmx.de>,
        "srinivas.pandruvada@linux.intel.com" <srinivas.pandruvada@linux.intel.com>,
        "ilpo.jarvinen@linux.intel.com" <ilpo.jarvinen@linux.intel.com>,
        "lkp@intel.com" <lkp@intel.com>, Hans de Goede <hdegoede@redhat.com>,
        Matthew
 Garrett <mjg59@srcf.ucam.org>,
        Jonathan Corbet <corbet@lwn.net>,
        Heiner
 Kallweit <hkallweit1@gmail.com>,
        Vegard Nossum <vegard.nossum@oracle.com>,
        "platform-driver-x86@vger.kernel.org" <platform-driver-x86@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Dell Client
 Kernel <Dell.Client.Kernel@dell.com>
Subject: RE: [PATCH v5] platform/x86: dell-laptop: Implement platform_profile
Thread-Topic: [PATCH v5] platform/x86: dell-laptop: Implement platform_profile
Thread-Index: AQHao7W5i0vPMIJzcUm3OnEtK3K4ELGSJuXQ
Date: Sat, 11 May 2024 15:56:55 +0000
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Internal Use - Confidential
+AD4- -----Original Message-----
+AD4- From: Limonciello, Mario +ADw-mario.limonciello+AEA-amd.com+AD4-
+AD4- Sent: Saturday, May 11, 2024 11:13 PM
+AD4- To: Shen, Yijun +ADw-Yijun+AF8-Shen+AEA-Dell.com+AD4AOw- Lyndon Sanch=
e
+AD4- +ADw-lsanche+AEA-lyndeno.ca+AD4-
+AD4- Cc: pali+AEA-kernel.org+ADs- W+AF8-Armin+AEA-gmx.de+ADs-
+AD4- srinivas.pandruvada+AEA-linux.intel.com+ADs- ilpo.jarvinen+AEA-linux.=
intel.com+ADs-
+AD4- lkp+AEA-intel.com+ADs- Hans de Goede +ADw-hdegoede+AEA-redhat.com+AD4=
AOw- Matthew Garrett
+AD4- +ADw-mjg59+AEA-srcf.ucam.org+AD4AOw- Jonathan Corbet +ADw-corbet+AEA-=
lwn.net+AD4AOw- Heiner Kallweit
+AD4- +ADw-hkallweit1+AEA-gmail.com+AD4AOw- Vegard Nossum +ADw-vegard.nossu=
m+AEA-oracle.com+AD4AOw-
+AD4- platform-driver-x86+AEA-vger.kernel.org+ADs- linux-kernel+AEA-vger.ke=
rnel.org+ADs- Dell Client
+AD4- Kernel +ADw-Dell.Client.Kernel+AEA-dell.com+AD4-
+AD4- Subject: Re: +AFs-PATCH v5+AF0- platform/x86: dell-laptop: Implement =
platform+AF8-profile
+AD4-
+AD4-
+AD4- +AFs-EXTERNAL EMAIL+AF0-
+AD4-
+AD4-
+AD4-
+AD4- On 5/11/2024 10:05 AM, Shen, Yijun wrote:
+AD4- +AD4-
+AD4- +AD4- Internal Use - Confidential
+AD4- +AD4APg- -----Original Message-----
+AD4- +AD4APg- From: Mario Limonciello +ADw-mario.limonciello+AEA-amd.com+A=
D4-
+AD4- +AD4APg- Sent: Wednesday, May 8, 2024 11:53 PM
+AD4- +AD4APg- To: Shen, Yijun +ADw-Yijun+AF8-Shen+AEA-Dell.com+AD4AOw- Lyn=
don Sanche
+AD4- +AD4APg- +ADw-lsanche+AEA-lyndeno.ca+AD4-
+AD4- +AD4APg- Cc: pali+AEA-kernel.org+ADs- W+AF8-Armin+AEA-gmx.de+ADs-
+AD4- +AD4APg- srinivas.pandruvada+AEA-linux.intel.com+ADs- ilpo.jarvinen+A=
EA-linux.intel.com+ADs-
+AD4- +AD4APg- lkp+AEA-intel.com+ADs- Hans de Goede +ADw-hdegoede+AEA-redha=
t.com+AD4AOw- Matthew
+AD4- Garrett
+AD4- +AD4APg- +ADw-mjg59+AEA-srcf.ucam.org+AD4AOw- Jonathan Corbet +ADw-co=
rbet+AEA-lwn.net+AD4AOw- Heiner
+AD4- +AD4APg- Kallweit +ADw-hkallweit1+AEA-gmail.com+AD4AOw- Vegard Nossum
+AD4- +AD4APg- +ADw-vegard.nossum+AEA-oracle.com+AD4AOw- platform-driver-x8=
6+AEA-vger.kernel.org+ADs-
+AD4- +AD4APg- linux-kernel+AEA-vger.kernel.org+ADs- Dell Client Kernel
+AD4- +AD4APg- +ADw-Dell.Client.Kernel+AEA-dell.com+AD4-
+AD4- +AD4APg- Subject: Re: RE: +AFs-PATCH v5+AF0- platform/x86: dell-lapto=
p: Implement
+AD4- +AD4APg- platform+AF8-profile
+AD4- +AD4APg-
+AD4- +AD4APg-
+AD4- +AD4APg- +AFs-EXTERNAL EMAIL+AF0-
+AD4- +AD4APg-
+AD4- +AD4APg- On 5/8/2024 09:24, Shen, Yijun wrote:
+AD4- +AD4APgA+- Hi Lyndon,
+AD4- +AD4APgA+-
+AD4- +AD4APgA+-    Thanks for working on this patch.
+AD4- +AD4APgA+-
+AD4- +AD4APgA+AD4-
+AD4- +AD4APgA+-    Dell side has an initial testing with this patch on som=
e laptops,
+AD4- +AD4APgA+- it looks
+AD4- +AD4APg- good. While changing the platform profile:
+AD4- +AD4APgA+- 1. The corresponding USTT option in BIOS will be changed.
+AD4- +AD4APgA+- 2. thermald will not be impacted. The related PSVT and ITM=
T will be
+AD4- loaded.
+AD4- +AD4APgA+-    Some Dell DTs does not have the USTT, Dell'll have a ch=
eck if
+AD4- +AD4APgA+- nothing is
+AD4- +AD4APg- broken.
+AD4- +AD4APg-
+AD4- +AD4APg- Hi Alex+ACE-
+AD4- +AD4APg-
+AD4- +AD4APg- Have you had a check both on both your AMD laptops and works=
tations
+AD4- +AD4APg- too, or just the Intel ones?  I think it would be good to ma=
ke sure
+AD4- +AD4APg- it's getting the correct experience in both cases.
+AD4- +AD4APg-
+AD4- +AD4- Hi Mario,
+AD4- +AD4-
+AD4- +AD4-   I've a check for this, for both laptop and workstation, the d=
ell+AF8-laptop
+AD4- module will not be loaded. So, AMD platform will not be impacted by t=
his
+AD4- patch series.
+AD4- +AD4- Follow is one example output with workstation.
+AD4- +AD4-   +ACM-lsmod +AHw- grep dell
+AD4- +AD4-     dell+AF8-wmi               28672  0
+AD4- +AD4-     dell+AF8-smbios            32768  1 dell+AF8-wmi
+AD4- +AD4-     dcdbas                 20480  1 dell+AF8-smbios
+AD4- +AD4-     dell+AF8-wmi+AF8-descriptor    20480  2 dell+AF8-wmi,dell+A=
F8-smbios
+AD4- +AD4-     sparse+AF8-keymap          12288  1 dell+AF8-wmi
+AD4- +AD4-     ledtrig+AF8-audio          12288  3 snd+AF8-ctl+AF8-led,snd=
+AF8-hda+AF8-codec+AF8-generic,dell+AF8-wmi
+AD4- +AD4-     video                  73728  2 dell+AF8-wmi,nvidia+AF8-mod=
eset
+AD4- +AD4-     wmi                    40960  5
+AD4- video,dell+AF8-wmi,wmi+AF8-bmof,dell+AF8-smbios,dell+AF8-wmi+AF8-desc=
riptor
+AD4- +AD4-
+AD4-
+AD4- Ah+ADs- right that makes sense.  In that case, is dell-laptop even th=
e right place for
+AD4- this patch series?  I would think the same policies for the platform =
profile
+AD4- should be able to apply to desktop/workstation.
+AD4-
+AD4- The v6 of this series would block smbios-thermal-ctl from working on =
a
+AD4- workstation too.
+AD4-
+AD4- +AD4APgA+-
+AD4- +AD4APgA+-     Additional, with this patch, follow behavior is found:
+AD4- +AD4APgA+-    1. For example, the platform profile is quiet.
+AD4- +AD4APgA+-    2. Reboot the system and change the USTT to performance=
.
+AD4- +AD4APgA+-    3. Boot to desktop, the platform profile is +ACI-quiet+=
ACI-, the USTT
+AD4- +AD4APgA+- will be
+AD4- +AD4APg- changed back to +ACI-quiet+ACI-.
+AD4- +AD4APgA+-    This looks like not a proper user experience. The platf=
orm
+AD4- +AD4APgA+- profile should
+AD4- +AD4APg- honor the BIOS setting, aka, the platform profile should be =
switched
+AD4- +AD4APg- to +ACI-performance+ACI-.
+AD4- +AD4APgA+-
+AD4- +AD4APg-
+AD4- +AD4APg- I agree, this sounds like the initial profile needs to be re=
ad from
+AD4- +AD4APg- the BIOS settings too.
+AD4- +AD4APg-
+AD4- +AD4APg- Furthermore I wanted to ask is there also a WMI setting that
+AD4- +AD4APg- corresponds to this that dell-wmi-sysman offers?
+AD4- +AD4-   Yes, Mario, you're right. This thermal setting could also be =
toggled by dell-
+AD4- wmi-sysman.
+AD4- +AD4- But, for the Dell consumer AMD laptops, like Alienware, the BIO=
S is another
+AD4- variant which is different with the workstation one.
+AD4- +AD4- With this variant BIOS, there is no USTT and also no dell+AF8-w=
mi/dell-wmi-
+AD4- sysman.
+AD4- +AD4-
+AD4- +AD4APg- I'm wondering if both should be probed in case the SMBIOS on=
e goes
+AD4- away one day.
+AD4- +AD4-   Yep, I think this is a good suggestion.
+AD4- +AD4-
+AD4-
+AD4- Great+ACE- Although something I wonder is if the policy when changed =
with dell-
+AD4- wmi-sysman is immediate or requires a reboot.  A lot of the settings =
in there
+AD4- aren't effective until after a reboot.
+AD4-
+AD4- If this is one of them then it might not be a good idea to make it wo=
rk for
+AD4- both.

Hi Mario,

 Just have a check, the check steps are:
1. stop the thermald
2. run the stress test
3. Toggle the thermal setting between UltraPerformance and Quiet via dell-w=
mi-sysman
4. Check the CPU FAN speed
 The system reboot is not needed, the CPU fan speed changes immediately.
 A screen recorder here: https://dell.box.com/s/p2bhd2b6cv8z5buk9eao3bosgrr=
p1lf9

Thanks