Re: [PATCH 2/4] mwait-idle: add SPR support

2022-04-27 Thread Roger Pau Monné
On Tue, Apr 26, 2022 at 12:05:07PM +0200, Jan Beulich wrote: > From: Artem Bityutskiy > > Add Sapphire Rapids Xeon support. > > Up until very recently, the C1 and C1E C-states were independent, but this > has changed in some new chips, including Sapphire Rapids Xeon (SPR). In these > chips the C

[PATCH 2/4] mwait-idle: add SPR support

2022-04-26 Thread Jan Beulich
From: Artem Bityutskiy Add Sapphire Rapids Xeon support. Up until very recently, the C1 and C1E C-states were independent, but this has changed in some new chips, including Sapphire Rapids Xeon (SPR). In these chips the C1 and C1E states cannot be enabled at the same time. The "C1E promotion" bi