Alistair Popple 1ab66d1fba powerpc/powernv: Introduce address translation services for Nvlink2 ... 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 nvlink processing unit (NPU). The NPU also manages forwarding of TLB invalidates (known as address translation shootdowns/ATSDs) to attached devices. This patch exports several methods to allow device drivers to register a process id (PASID/PID) in the hardware tables and to receive notification of when a device should stop issuing address translation requests (ATRs). It also adds a fault handler to allow device drivers to demand fault pages in. Signed-off-by: Alistair Popple <alistair@popple.id.au> [mpe: Fix up comment formatting, use flush_tlb_mm()] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2017-04-04 13:27:26 +10:00
..
asm	powerpc/powernv: Introduce address translation services for Nvlink2	2017-04-04 13:27:26 +10:00
uapi/asm	powerpc: Wire up statx() syscall	2017-03-16 20:45:53 +11:00