Re: [PATCH V3 0/3] X1E001DE Snapdragon Devkit for Windows

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On 31.10.24 13:29, Marc Zyngier wrote:
On Thu, 31 Oct 2024 10:00:40 +0000,
Jens Glathe <jens.glathe@xxxxxxxxxxxxxxxxxxxxxx> wrote:
On 31.10.24 10:46, Abel Vesa wrote:
On 24-10-30 17:02:32, Marc Zyngier wrote:
On Fri, 25 Oct 2024 13:32:24 +0100,
Sibi Sankar <quic_sibis@xxxxxxxxxxx> wrote:
Add initial support for X1E001DE Snapdragon Devkit for Windows. X1E001DE
is the speed binned variant of X1E80100 that supports turbo boost up to
4.3 Ghz. The initial support includes the following:

-DSPs
-Ethernet (RTL8125BG) over the pcie 5 instance.
-NVme
-Wifi
-USB-C ports

V3:
* Asked around and looked at the firmware, couldn't find a codename so
    will keep it as DEVKIT. Will update it if someone from the community
    finds something else.
My machine has the following information as part of its DMI tables:

Handle 0x0005, DMI type 1, 27 bytes
System Information
	Manufacturer: Qualcomm
	Product Name: Snapdragon-Devkit
	Version: 2.1
	Serial Number: 5
	UUID: 63b5fc8b-9c50-89aa-fd0f-3fcef93dc291
	Wake-up Type: Power Switch
	SKU Number: 6
	Family: SCP_HAMOA

So I guess that Snapdragon-Devkit is another possible name. But given
that it is a bit of a mouthful, devkit, Devkit, or any other variation
on the case would work for me.
The point was to have something unique A codename would be unique.
Naming it Snapdragon-Devkit (or just devkit) will be confusing since
there was already a 2023 devkit (from Microsoft) with the Snapdragon
8cx Gen 3, and probably the next compute platform will also have a devkit
as well. So probably "X Elite devkit" could be the right option..
Odd, I didn't get that email.

My point was the the HW already comes with a full description as part
of the existing tables. If you really want something that is truly
unique to that platform and that can be used by a tool (be it
firmware, kernel or userspace) to understand what it is running on,
then you cannot have *less* information.

At the very least, you would need Manufacturer, Product Name, Version
and Family.

But does it really matter? I don't think it is *that* crucial. At the
end of the day, this is only used to pick the correct DT out of a set
for a given SoC, or worse case a family of SoCs that are closely
related.

As for The Windows Dev Kit 2023, dmidecode says this:

Handle 0x0009, DMI type 1, 27 bytes
System Information
     Manufacturer: Microsoft Corporation
     Product Name: Windows Dev Kit 2023
     Version: 124I:00097T:000M:0200000B:07
     Serial Number: 0F01C4F22373F6
     UUID: e4a4662c-8367-75d0-a54f-1d04bd404860
     Wake-up Type: Unknown
     SKU Number: 2043
     Family: Surface

That's also really a mouthful. In my patchset for it there were some
name / path changes, microsoft/blackrock it is now. Would be cool to
have short and unique names. In the end, whatever works and is unique.
Like those UUIDs?
Are those actually per platform? or per unit? On my box, the serial
number is probably a dud. What does the UUID reports on your X1E box?

Thanks,

	M.

Looks like the UUIDs are System UUIDs (unique). They are not the same as
/etc/machine-id either.

X1E DevKit:

Handle 0x0005, DMI type 1, 27 bytes
System Information
    Manufacturer: Qualcomm
    Product Name: Snapdragon-Devkit
    Version: 2.1
    Serial Number: 5
    UUID: eadc72c0-a0bd-cced-025c-c3a1494d433c
    Wake-up Type: Power Switch
    SKU Number: 6
    Family: SCP_HAMOA


Second Windows Dev Kit 2023:

Handle 0x0009, DMI type 1, 27 bytes
System Information
    Manufacturer: Microsoft Corporation
    Product Name: Windows Dev Kit 2023
    Version: 124I:00097T:000M:0200000B:07
    Serial Number: 0F004PD22363F6
    UUID: 35b94307-ddb5-e0c5-1c9a-ffc43fdf60ba
    Wake-up Type: Unknown
    SKU Number: 2043
    Family: Surface

Looks like maybe using the manufacturer for directory and product name
for subdirectory could do. But that long name everywhere?

with best regards

Jens






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