nvkm_mmu_ptc_get
ptp->pt = nvkm_mmu_ptc_get(mmu, 0x1000, 0x1000, false);
nvkm_mmu_ptc_get(struct nvkm_mmu *, u32 size, u32 align, bool zero);
vmm->pd->pt[0] = nvkm_mmu_ptc_get(mmu, size, desc->align, true);
pgt->pt[type] = nvkm_mmu_ptc_get(mmu, size, desc->align, zero);