Alistair Popple 5d2aa710e6 powerpc/powernv: Add support for Nvlink NPUs ... NVLink is a high speed interconnect that is used in conjunction with a PCI-E connection to create an interface between CPU and GPU that provides very high data bandwidth. A PCI-E connection to a GPU is used as the control path to initiate and report status of large data transfers sent via the NVLink. On IBM Power systems the NVLink processing unit (NPU) is similar to the existing PHB3. This patch adds support for a new NPU PHB type. DMA operations on the NPU are not supported as this patch sets the TCE translation tables to be the same as the related GPU PCIe device for each NVLink. Therefore all DMA operations are setup and controlled via the PCIe device. EEH is not presently supported for the NPU devices, although it may be added in future. Signed-off-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2015-12-17 22:41:00 +11:00
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asm	powerpc/powernv: Add support for Nvlink NPUs	2015-12-17 22:41:00 +11:00
uapi/asm	powerpc: Wire up sys_mlock2()	2015-11-16 17:05:53 +11:00