Re: [v2, 3/3] powerpc/powernv: Introduce address translation services for Nvlink2

2017-04-06 Thread Michael Ellerman
On Mon, 2017-04-03 at 09:51:44 UTC, Alistair Popple wrote: > Nvlink2 supports address translation services (ATS) allowing devices > to request address translations from an mmu known as the nest MMU > which is setup to walk the CPU page tables. > > To access this functionality certain firmware

Re: [v2, 3/3] powerpc/powernv: Introduce address translation services for Nvlink2

2017-04-06 Thread Michael Ellerman
On Mon, 2017-04-03 at 09:51:44 UTC, Alistair Popple wrote: > Nvlink2 supports address translation services (ATS) allowing devices > to request address translations from an mmu known as the nest MMU > which is setup to walk the CPU page tables. > > To access this functionality certain firmware

[PATCH v2 3/3] powerpc/powernv: Introduce address translation services for Nvlink2

2017-04-03 Thread Alistair Popple
Nvlink2 supports address translation services (ATS) allowing devices to request address translations from an mmu known as the nest MMU which is setup to walk the CPU page tables. To access this functionality certain firmware calls are required to setup and manage hardware context tables in the

[PATCH v2 3/3] powerpc/powernv: Introduce address translation services for Nvlink2

2017-04-03 Thread Alistair Popple
Nvlink2 supports address translation services (ATS) allowing devices to request address translations from an mmu known as the nest MMU which is setup to walk the CPU page tables. To access this functionality certain firmware calls are required to setup and manage hardware context tables in the