Messages in this thread | | | Date | Wed, 21 Sep 2022 21:48:13 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH] ACPI: processor_idle: Skip dummy wait for processors based on the Zen microarchitecture |
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On Wed, Sep 21, 2022 at 05:00:35PM +0200, Peter Zijlstra wrote: > On Wed, Sep 21, 2022 at 12:06:38PM +0530, K Prateek Nayak wrote: > > Processors based on the Zen microarchitecture support IOPORT based deeper > > C-states. > > I've just gotta ask; why the heck are you using IO port based idle > states in 2022 ?!?! You have have MWAIT, right?
They have both. And both is Intel technology. And as I'm sure you know AMD can't do their own thing - they kinda have to follow Intel. Unfortunately.
Are you saying modern Intel chipsets don't do IO-based C-states anymore?
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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