Re: [PATCH V4 0/5] ocxl: Mmio invalidation support

2020-12-10 Thread Michael Ellerman
On Wed, 25 Nov 2020 16:50:08 +0100, Christophe Lombard wrote: > OpenCAPI 4.0/5.0 with TLBI/SLBI Snooping, is not used due to performance > problems caused by the PAU having to process all incoming TLBI/SLBI > commands which will cause them to back up on the PowerBus. > > When the Address Translati

[PATCH V4 0/5] ocxl: Mmio invalidation support

2020-11-25 Thread Christophe Lombard
OpenCAPI 4.0/5.0 with TLBI/SLBI Snooping, is not used due to performance problems caused by the PAU having to process all incoming TLBI/SLBI commands which will cause them to back up on the PowerBus. When the Address Translation Mode requires TLB operations to be initiated using MMIO registers, a