Re: [PATCH v2 1/1] mfd: intel-lpss: Try to enable Memory-Write-Invalidate

On Tue, 15 Nov 2016, Andy Shevchenko wrote: > Enable MWI mechanism if PCI bus master supports it. > > It might be potential benefit in some cases. Documentation [1] says that > standard Memory Write might supply more current data than in the CPU modified > cache line and "trashing a line in the c

Re: [PATCH v2 1/1] mfd: intel-lpss: Try to enable Memory-Write-Invalidate

On Tue, Nov 15, 2016 at 12:37:04PM +0200, Andy Shevchenko wrote: > Enable MWI mechanism if PCI bus master supports it. > > It might be potential benefit in some cases. Documentation [1] says that > standard Memory Write might supply more current data than in the CPU modified > cache line and "tras

[PATCH v2 1/1] mfd: intel-lpss: Try to enable Memory-Write-Invalidate

Enable MWI mechanism if PCI bus master supports it. It might be potential benefit in some cases. Documentation [1] says that standard Memory Write might supply more current data than in the CPU modified cache line and "trashing a line in the cache may trash some data that is more current that in t