intel

[Question] Usage of D3CE/D3CX

Bug #2059065 reported by Kai-Heng Feng
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Bug Description

While reading the BIOS guide, there are two ACPI method that are currently missing under Linux:

D3CE, The global entry for OSPM to indicate all TBT domain is ready into OFF state.
D3CX, The global entry for OSPM to indicate all TBT domain is ready to be transited to ON state.

Are those implemented under other OSes so Linux should also have them?

Revision history for this message
Max Lee (max-lee) wrote :

It was reference to Intel RDC#627270_ADL_RPL_TWL_Proc_Core_Uncore_BIOS_Spec_Rev1p0p3.pdf

Revision history for this message
Neo Wong (neowong-taiwan) wrote :

What's the meaning of missing under Linux ? It works well under Windows ? The reference MRC code did contain those two methods.

Revision history for this message
Kai-Heng Feng (kaihengfeng) wrote :

> What's the meaning of missing under Linux ?
Not implemented in Linux.

> It works well under Windows ?
I don't know, that's why we need help here :)

> The reference MRC code did contain those two methods.
So does Windows invoke those methods?

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