drm/nouveau/mmu/nv50,g84: implement vmm on top of new base

#define NVIF_CLASS_VMM                               /* if000c.h */  0x8000000c

#define NVIF_CLASS_VMM_NV04                          /* if000d.h */  0x8000000d

#define NVIF_CLASS_VMM_NV50                          /* if500d.h */  0x8000500d

/* the below match nvidia-assigned (either in hw, or sw) class numbers */

#define NV_NULL_CLASS                                                0x00000030

#ifndef __NVIF_IF500D_H__

#define __NVIF_IF500D_H__

#include "if000c.h"

struct nv50_vmm_vn {

	/* nvif_vmm_vX ... */

};

#endif

	u64 limit;

	struct nvkm_vmm_pt *pd;

	u16 pd_offset;

	struct list_head join;

	struct nvkm_mm mm;

nvkm-y += nvkm/subdev/mmu/vmmnv04.o

nvkm-y += nvkm/subdev/mmu/vmmnv41.o

nvkm-y += nvkm/subdev/mmu/vmmnv44.o

nvkm-y += nvkm/subdev/mmu/vmmnv50.o

	nvkm_mm_fini(&vm->mm);

	vfree(vm->pgt);

	if (vm->func)

		nvkm_vmm_dtor(vm);

	kfree(vm);