[PATCH 4.13 041/109] powerpc/powernv/npu: Move tlb flush before launching ATSD

4.13-stable review patch. If anyone has any objections, please let me know. -- From: Alistair Popple commit bab9f954aaf352127725a9b7920226abdb65b604 upstream. The nest MMU tlb flush needs to happen before the GPU translation shootdown is launched to

[PATCH 4.13 041/109] powerpc/powernv/npu: Move tlb flush before launching ATSD

4.13-stable review patch. If anyone has any objections, please let me know. -- From: Alistair Popple commit bab9f954aaf352127725a9b7920226abdb65b604 upstream. The nest MMU tlb flush needs to happen before the GPU translation shootdown is launched to avoid the GPU refilling