Re: [PATCH v3] Optimize C3 entry on Centaur CPUs

From: Thomas Gleixner
Date: Fri Jul 20 2018 - 02:38:34 EST


On Tue, 29 May 2018, David Wang wrote:

> For new Centaur CPUs the ucode will take care of the preservation of cache coherence
> between CPU cores in C-states regardless of how deep the C-states are. So, it is not
> necessary to flush the caches in software befor entering C3.
>
> Signed-off-by: David Wang <davidwang@xxxxxxxxxxx>

Reviewed-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>