Re: [PATCH v2] intel_idle: mention assumption that wbinvd is not needed

2020-10-16 Thread Rafael J. Wysocki
On Mon, Oct 12, 2020 at 2:51 PM Alexander Monakov wrote: > > Intel SDM does not explicitly say that entering a C-state via MWAIT will > implicitly flush CPU caches as appropriate for that C-state. However, > documentation for individual Intel CPU generations does mention this > behavior. > > Since

[PATCH v2] intel_idle: mention assumption that wbinvd is not needed

2020-10-12 Thread Alexander Monakov
Intel SDM does not explicitly say that entering a C-state via MWAIT will implicitly flush CPU caches as appropriate for that C-state. However, documentation for individual Intel CPU generations does mention this behavior. Since intel_idle binds to any Intel CPU with MWAIT, list this assumption of