drm/nouveau/mmu: support initialisation of client-managed address-spaces

NVKM is currently responsible for managing the allocation of a client's
GPU address-space, but there's various use-cases (ie. HMM address-space
mirroring) where giving a client more direct control is desirable.

This commit allows for a VMM to be created where the area allocated for
NVKM is limited to a client-specified window, the remainder of address-
space is controlled directly by the client.

Leaving a window is necessary to support various internal requirements,
but also to support existing allocation interfaces as not all of the HW
is capable of working with a HMM allocation.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

22 files changed, 172 insertions, 115 deletions

diff --git a/drivers/gpu/drm/nouveau/include/nvif/if000c.h b/drivers/gpu/drm/nouveau/include/nvif/if000c.h
index 2928ecd989ad..f8e29cfee7f8 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/if000c.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/if000c.h
@@ -3,7 +3,8 @@
 struct nvif_vmm_v0 {
 	__u8  version;
 	__u8  page_nr;
-	__u8  pad02[6];
+	__u8  managed;
+	__u8  pad03[5];
 	__u64 addr;
 	__u64 size;
 	__u8  data[];
diff --git a/drivers/gpu/drm/nouveau/include/nvif/vmm.h b/drivers/gpu/drm/nouveau/include/nvif/vmm.h
index c5db8a2e82df..79bf85d2f43a 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/vmm.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/vmm.h
@@ -30,8 +30,8 @@ struct nvif_vmm {
 	int page_nr;
 };
 
-int nvif_vmm_init(struct nvif_mmu *, s32 oclass, u64 addr, u64 size,
-		  void *argv, u32 argc, struct nvif_vmm *);
+int nvif_vmm_init(struct nvif_mmu *, s32 oclass, bool managed, u64 addr,
+		  u64 size, void *argv, u32 argc, struct nvif_vmm *);
 void nvif_vmm_fini(struct nvif_vmm *);
 int nvif_vmm_get(struct nvif_vmm *, enum nvif_vmm_get, bool sparse,
 		 u8 page, u8 align, u64 size, struct nvif_vma *);
diff --git a/drivers/gpu/drm/nouveau/nouveau_vmm.c b/drivers/gpu/drm/nouveau/nouveau_vmm.c
index 2032c3e4f6e5..724d02d7c049 100644
--- a/drivers/gpu/drm/nouveau/nouveau_vmm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_vmm.c
@@ -126,7 +126,7 @@ nouveau_vmm_fini(struct nouveau_vmm *vmm)
 int
 nouveau_vmm_init(struct nouveau_cli *cli, s32 oclass, struct nouveau_vmm *vmm)
 {
-	int ret = nvif_vmm_init(&cli->mmu, oclass, PAGE_SIZE, 0, NULL, 0,
+	int ret = nvif_vmm_init(&cli->mmu, oclass, false, PAGE_SIZE, 0, NULL, 0,
 				&vmm->vmm);
 	if (ret)
 		return ret;
diff --git a/drivers/gpu/drm/nouveau/nvif/vmm.c b/drivers/gpu/drm/nouveau/nvif/vmm.c
index 6b9c5776547f..11487c00b909 100644
--- a/drivers/gpu/drm/nouveau/nvif/vmm.c
+++ b/drivers/gpu/drm/nouveau/nvif/vmm.c
@@ -112,8 +112,8 @@ nvif_vmm_fini(struct nvif_vmm *vmm)
 }
 
 int
-nvif_vmm_init(struct nvif_mmu *mmu, s32 oclass, u64 addr, u64 size,
-	      void *argv, u32 argc, struct nvif_vmm *vmm)
+nvif_vmm_init(struct nvif_mmu *mmu, s32 oclass, bool managed, u64 addr,
+	      u64 size, void *argv, u32 argc, struct nvif_vmm *vmm)
 {
 	struct nvif_vmm_v0 *args;
 	u32 argn = sizeof(*args) + argc;
@@ -125,6 +125,7 @@ nvif_vmm_init(struct nvif_mmu *mmu, s32 oclass, u64 addr, u64 size,
 	if (!(args = kmalloc(argn, GFP_KERNEL)))
 		return -ENOMEM;
 	args->version = 0;
+	args->managed = managed;
 	args->addr = addr;
 	args->size = size;
 	memcpy(args->data, argv, argc);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h
index 948a48c21be4..2ad1102a4e31 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h
@@ -28,7 +28,7 @@ struct nvkm_mmu_func {
 
 	struct {
 		struct nvkm_sclass user;
-		int (*ctor)(struct nvkm_mmu *, u64 addr, u64 size,
+		int (*ctor)(struct nvkm_mmu *, bool managed, u64 addr, u64 size,
 			    void *argv, u32 argc, struct lock_class_key *,
 			    const char *name, struct nvkm_vmm **);
 		bool global;
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.c
index 6889076097ec..4b9f07a31219 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.c
@@ -304,8 +304,10 @@ nvkm_uvmm_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
 	struct nvkm_uvmm *uvmm;
 	int ret = -ENOSYS;
 	u64 addr, size;
+	bool managed;
 
 	if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, more))) {
+		managed = args->v0.managed != 0;
 		addr = args->v0.addr;
 		size = args->v0.size;
 	} else
@@ -317,7 +319,7 @@ nvkm_uvmm_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
 	*pobject = &uvmm->object;
 
 	if (!mmu->vmm) {
-		ret = mmu->func->vmm.ctor(mmu, addr, size, argv, argc,
+		ret = mmu->func->vmm.ctor(mmu, managed, addr, size, argv, argc,
 					  NULL, "user", &uvmm->vmm);
 		if (ret)
 			return ret;
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
index 6b87fff014b3..5274ab0598af 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
@@ -972,16 +972,32 @@ nvkm_vmm_dtor(struct nvkm_vmm *vmm)
 	}
 }
 
+static int
+nvkm_vmm_ctor_managed(struct nvkm_vmm *vmm, u64 addr, u64 size)
+{
+	struct nvkm_vma *vma;
+	if (!(vma = nvkm_vma_new(addr, size)))
+		return -ENOMEM;
+	vma->mapref = true;
+	vma->sparse = false;
+	vma->used = true;
+	vma->user = true;
+	nvkm_vmm_node_insert(vmm, vma);
+	list_add_tail(&vma->head, &vmm->list);
+	return 0;
+}
+
 int
 nvkm_vmm_ctor(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu,
-	      u32 pd_header, u64 addr, u64 size, struct lock_class_key *key,
-	      const char *name, struct nvkm_vmm *vmm)
+	      u32 pd_header, bool managed, u64 addr, u64 size,
+	      struct lock_class_key *key, const char *name,
+	      struct nvkm_vmm *vmm)
 {
 	static struct lock_class_key _key;
 	const struct nvkm_vmm_page *page = func->page;
 	const struct nvkm_vmm_desc *desc;
 	struct nvkm_vma *vma;
-	int levels, bits = 0;
+	int levels, bits = 0, ret;
 
 	vmm->func = func;
 	vmm->mmu = mmu;
@@ -1009,11 +1025,6 @@ nvkm_vmm_ctor(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu,
 	if (WARN_ON(levels > NVKM_VMM_LEVELS_MAX))
 		return -EINVAL;
 
-	vmm->start = addr;
-	vmm->limit = size ? (addr + size) : (1ULL << bits);
-	if (vmm->start > vmm->limit || vmm->limit > (1ULL << bits))
-		return -EINVAL;
-
 	/* Allocate top-level page table. */
 	vmm->pd = nvkm_vmm_pt_new(desc, false, NULL);
 	if (!vmm->pd)
@@ -1036,22 +1047,61 @@ nvkm_vmm_ctor(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu,
 	vmm->free = RB_ROOT;
 	vmm->root = RB_ROOT;
 
-	if (!(vma = nvkm_vma_new(vmm->start, vmm->limit - vmm->start)))
-		return -ENOMEM;
+	if (managed) {
+		/* Address-space will be managed by the client for the most
+		 * part, except for a specified area where NVKM allocations
+		 * are allowed to be placed.
+		 */
+		vmm->start = 0;
+		vmm->limit = 1ULL << bits;
+		if (addr + size < addr || addr + size > vmm->limit)
+			return -EINVAL;
+
+		/* Client-managed area before the NVKM-managed area. */
+		if (addr && (ret = nvkm_vmm_ctor_managed(vmm, 0, addr)))
+			return ret;
+
+		/* NVKM-managed area. */
+		if (size) {
+			if (!(vma = nvkm_vma_new(addr, size)))
+				return -ENOMEM;
+			nvkm_vmm_free_insert(vmm, vma);
+			list_add_tail(&vma->head, &vmm->list);
+		}
+
+		/* Client-managed area after the NVKM-managed area. */
+		addr = addr + size;
+		size = vmm->limit - addr;
+		if (size && (ret = nvkm_vmm_ctor_managed(vmm, addr, size)))
+			return ret;
+	} else {
+		/* Address-space fully managed by NVKM, requiring calls to
+		 * nvkm_vmm_get()/nvkm_vmm_put() to allocate address-space.
+		 */
+		vmm->start = addr;
+		vmm->limit = size ? (addr + size) : (1ULL << bits);
+		if (vmm->start > vmm->limit || vmm->limit > (1ULL << bits))
+			return -EINVAL;
+
+		if (!(vma = nvkm_vma_new(vmm->start, vmm->limit - vmm->start)))
+			return -ENOMEM;
+
+		nvkm_vmm_free_insert(vmm, vma);
+		list_add(&vma->head, &vmm->list);
+	}
 
-	nvkm_vmm_free_insert(vmm, vma);
-	list_add(&vma->head, &vmm->list);
 	return 0;
 }
 
 int
 nvkm_vmm_new_(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu,
-	      u32 hdr, u64 addr, u64 size, struct lock_class_key *key,
-	      const char *name, struct nvkm_vmm **pvmm)
+	      u32 hdr, bool managed, u64 addr, u64 size,
+	      struct lock_class_key *key, const char *name,
+	      struct nvkm_vmm **pvmm)
 {
 	if (!(*pvmm = kzalloc(sizeof(**pvmm), GFP_KERNEL)))
 		return -ENOMEM;
-	return nvkm_vmm_ctor(func, mmu, hdr, addr, size, key, name, *pvmm);
+	return nvkm_vmm_ctor(func, mmu, hdr, managed, addr, size, key, name, *pvmm);
 }
 
 void
@@ -1584,7 +1634,8 @@ nvkm_vmm_new(struct nvkm_device *device, u64 addr, u64 size, void *argv,
 	struct nvkm_mmu *mmu = device->mmu;
 	struct nvkm_vmm *vmm = NULL;
 	int ret;
-	ret = mmu->func->vmm.ctor(mmu, addr, size, argv, argc, key, name, &vmm);
+	ret = mmu->func->vmm.ctor(mmu, false, addr, size, argv, argc,
+				  key, name, &vmm);
 	if (ret)
 		nvkm_vmm_unref(&vmm);
 	*pvmm = vmm;
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
index 68474f1f09c1..e272e81ac292 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h
@@ -153,11 +153,12 @@ struct nvkm_vmm_join {
 };
 
 int nvkm_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *,
-		  u32 pd_header, u64 addr, u64 size, struct lock_class_key *,
-		  const char *name, struct nvkm_vmm **);
+		  u32 pd_header, bool managed, u64 addr, u64 size,
+		  struct lock_class_key *, const char *name,
+		  struct nvkm_vmm **);
 int nvkm_vmm_ctor(const struct nvkm_vmm_func *, struct nvkm_mmu *,
-		  u32 pd_header, u64 addr, u64 size, struct lock_class_key *,
-		  const char *name, struct nvkm_vmm *);
+		  u32 pd_header, bool managed, u64 addr, u64 size,
+		  struct lock_class_key *, const char *name, struct nvkm_vmm *);
 struct nvkm_vma *nvkm_vmm_node_search(struct nvkm_vmm *, u64 addr);
 struct nvkm_vma *nvkm_vmm_node_split(struct nvkm_vmm *, struct nvkm_vma *,
 				     u64 addr, u64 size);
@@ -171,7 +172,7 @@ void nvkm_vmm_unmap_region(struct nvkm_vmm *vmm, struct nvkm_vma *vma);
 struct nvkm_vma *nvkm_vma_tail(struct nvkm_vma *, u64 tail);
 
 int nv04_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *, u32,
-		  u64, u64, void *, u32, struct lock_class_key *,
+		  bool, u64, u64, void *, u32, struct lock_class_key *,
 		  const char *, struct nvkm_vmm **);
 int nv04_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
 
@@ -181,7 +182,7 @@ int nv50_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
 void nv50_vmm_flush(struct nvkm_vmm *, int);
 
 int gf100_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *,
-		   struct nvkm_mmu *, u64, u64, void *, u32,
+		   struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		   struct lock_class_key *, const char *, struct nvkm_vmm **);
 int gf100_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base);
 int gf100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
@@ -195,7 +196,7 @@ void gf100_vmm_invalidate_pdb(struct nvkm_vmm *, u64 addr);
 int gk20a_vmm_aper(enum nvkm_memory_target);
 
 int gm200_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *,
-		   struct nvkm_mmu *, u64, u64, void *, u32,
+		   struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		   struct lock_class_key *, const char *, struct nvkm_vmm **);
 int gm200_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base);
 int gm200_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
@@ -207,46 +208,46 @@ void gp100_vmm_invalidate_pdb(struct nvkm_vmm *, u64 addr);
 
 int gv100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
 
-int nv04_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int nv04_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		 struct lock_class_key *, const char *, struct nvkm_vmm **);
-int nv41_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int nv41_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		 struct lock_class_key *, const char *, struct nvkm_vmm **);
-int nv44_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int nv44_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		 struct lock_class_key *, const char *, struct nvkm_vmm **);
-int nv50_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int nv50_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		 struct lock_class_key *, const char *, struct nvkm_vmm **);
-int mcp77_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int mcp77_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		  struct lock_class_key *, const char *, struct nvkm_vmm **);
-int g84_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int g84_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		struct lock_class_key *, const char *, struct nvkm_vmm **);
-int gf100_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int gf100_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		  struct lock_class_key *, const char *, struct nvkm_vmm **);
-int gk104_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int gk104_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		  struct lock_class_key *, const char *, struct nvkm_vmm **);
-int gk20a_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int gk20a_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		  struct lock_class_key *, const char *, struct nvkm_vmm **);
-int gm200_vmm_new_fixed(struct nvkm_mmu *, u64, u64, void *, u32,
+int gm200_vmm_new_fixed(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 			struct lock_class_key *, const char *,
 			struct nvkm_vmm **);
-int gm200_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int gm200_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		  struct lock_class_key *, const char *,
 		  struct nvkm_vmm **);
-int gm20b_vmm_new_fixed(struct nvkm_mmu *, u64, u64, void *, u32,
+int gm20b_vmm_new_fixed(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 			struct lock_class_key *, const char *,
 			struct nvkm_vmm **);
-int gm20b_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int gm20b_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		  struct lock_class_key *, const char *,
 		  struct nvkm_vmm **);
-int gp100_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int gp100_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		  struct lock_class_key *, const char *,
 		  struct nvkm_vmm **);
-int gp10b_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int gp10b_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		  struct lock_class_key *, const char *,
 		  struct nvkm_vmm **);
-int gv100_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int gv100_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		  struct lock_class_key *, const char *,
 		  struct nvkm_vmm **);
-int tu102_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,
+int tu102_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 		  struct lock_class_key *, const char *,
 		  struct nvkm_vmm **);
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c
index b414413b07d4..ab6424faf84c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c
@@ -400,14 +400,14 @@ gf100_vmm_16 = {
 int
 gf100_vmm_new_(const struct nvkm_vmm_func *func_16,
 	       const struct nvkm_vmm_func *func_17,
-	       struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	       struct lock_class_key *key, const char *name,
-	       struct nvkm_vmm **pvmm)
+	       struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	       void *argv, u32 argc, struct lock_class_key *key,
+	       const char *name, struct nvkm_vmm **pvmm)
 {
 	switch (mmu->subdev.device->fb->page) {
-	case 16: return nv04_vmm_new_(func_16, mmu, 0, addr, size,
+	case 16: return nv04_vmm_new_(func_16, mmu, 0, managed, addr, size,
 				      argv, argc, key, name, pvmm);
-	case 17: return nv04_vmm_new_(func_17, mmu, 0, addr, size,
+	case 17: return nv04_vmm_new_(func_17, mmu, 0, managed, addr, size,
 				      argv, argc, key, name, pvmm);
 	default:
 		WARN_ON(1);
@@ -416,10 +416,10 @@ gf100_vmm_new_(const struct nvkm_vmm_func *func_16,
 }
 
 int
-gf100_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	      struct lock_class_key *key, const char *name,
-	      struct nvkm_vmm **pvmm)
+gf100_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	      void *argv, u32 argc, struct lock_class_key *key,
+	      const char *name, struct nvkm_vmm **pvmm)
 {
-	return gf100_vmm_new_(&gf100_vmm_16, &gf100_vmm_17, mmu, addr,
+	return gf100_vmm_new_(&gf100_vmm_16, &gf100_vmm_17, mmu, managed, addr,
 			      size, argv, argc, key, name, pvmm);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk104.c
index 2679068e57ac..0b59c01fd146 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk104.c
@@ -95,10 +95,10 @@ gk104_vmm_16 = {
 };
 
 int
-gk104_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	      struct lock_class_key *key, const char *name,
-	      struct nvkm_vmm **pvmm)
+gk104_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	      void *argv, u32 argc, struct lock_class_key *key,
+	      const char *name, struct nvkm_vmm **pvmm)
 {
-	return gf100_vmm_new_(&gk104_vmm_16, &gk104_vmm_17, mmu, addr,
+	return gf100_vmm_new_(&gk104_vmm_16, &gk104_vmm_17, mmu, managed, addr,
 			      size, argv, argc, key, name, pvmm);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk20a.c
index 5c6f645080ae..5a9582dce970 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk20a.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk20a.c
@@ -64,10 +64,10 @@ gk20a_vmm_16 = {
 };
 
 int
-gk20a_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	      struct lock_class_key *key, const char *name,
-	      struct nvkm_vmm **pvmm)
+gk20a_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	      void *argv, u32 argc, struct lock_class_key *key,
+	      const char *name, struct nvkm_vmm **pvmm)
 {
-	return gf100_vmm_new_(&gk20a_vmm_16, &gk20a_vmm_17, mmu, addr,
+	return gf100_vmm_new_(&gk20a_vmm_16, &gk20a_vmm_17, mmu, managed, addr,
 			      size, argv, argc, key, name, pvmm);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c
index dd7f60753f6d..2e61af02d4d8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c
@@ -141,9 +141,9 @@ gm200_vmm_16 = {
 int
 gm200_vmm_new_(const struct nvkm_vmm_func *func_16,
 	       const struct nvkm_vmm_func *func_17,
-	       struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	       struct lock_class_key *key, const char *name,
-	       struct nvkm_vmm **pvmm)
+	       struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	       void *argv, u32 argc, struct lock_class_key *key,
+	       const char *name, struct nvkm_vmm **pvmm)
 {
 	const struct nvkm_vmm_func *func;
 	union {
@@ -165,23 +165,23 @@ gm200_vmm_new_(const struct nvkm_vmm_func *func_16,
 	} else
 		return ret;
 
-	return nvkm_vmm_new_(func, mmu, 0, addr, size, key, name, pvmm);
+	return nvkm_vmm_new_(func, mmu, 0, managed, addr, size, key, name, pvmm);
 }
 
 int
-gm200_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	      struct lock_class_key *key, const char *name,
-	      struct nvkm_vmm **pvmm)
+gm200_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	      void *argv, u32 argc, struct lock_class_key *key,
+	      const char *name, struct nvkm_vmm **pvmm)
 {
-	return gm200_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, addr,
+	return gm200_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, managed, addr,
 			      size, argv, argc, key, name, pvmm);
 }
 
 int
-gm200_vmm_new_fixed(struct nvkm_mmu *mmu, u64 addr, u64 size,
+gm200_vmm_new_fixed(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
 		    void *argv, u32 argc, struct lock_class_key *key,
 		    const char *name, struct nvkm_vmm **pvmm)
 {
-	return gf100_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, addr,
+	return gf100_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, managed, addr,
 			      size, argv, argc, key, name, pvmm);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm20b.c
index 57d763c9629e..96b759695dd8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm20b.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm20b.c
@@ -54,19 +54,19 @@ gm20b_vmm_16 = {
 };
 
 int
-gm20b_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	      struct lock_class_key *key, const char *name,
-	      struct nvkm_vmm **pvmm)
+gm20b_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	      void *argv, u32 argc, struct lock_class_key *key,
+	      const char *name, struct nvkm_vmm **pvmm)
 {
-	return gm200_vmm_new_(&gm20b_vmm_16, &gm20b_vmm_17, mmu, addr,
+	return gm200_vmm_new_(&gm20b_vmm_16, &gm20b_vmm_17, mmu, managed, addr,
 			      size, argv, argc, key, name, pvmm);
 }
 
 int
-gm20b_vmm_new_fixed(struct nvkm_mmu *mmu, u64 addr, u64 size,
+gm20b_vmm_new_fixed(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
 		    void *argv, u32 argc, struct lock_class_key *key,
 		    const char *name, struct nvkm_vmm **pvmm)
 {
-	return gf100_vmm_new_(&gm20b_vmm_16, &gm20b_vmm_17, mmu, addr,
+	return gf100_vmm_new_(&gm20b_vmm_16, &gm20b_vmm_17, mmu, managed, addr,
 			      size, argv, argc, key, name, pvmm);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp100.c
index f9c95c43c7a3..4b8ebaa63081 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp100.c
@@ -352,10 +352,10 @@ gp100_vmm = {
 };
 
 int
-gp100_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	      struct lock_class_key *key, const char *name,
-	      struct nvkm_vmm **pvmm)
+gp100_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	      void *argv, u32 argc, struct lock_class_key *key,
+	      const char *name, struct nvkm_vmm **pvmm)
 {
-	return nv04_vmm_new_(&gp100_vmm, mmu, 0, addr, size,
+	return nv04_vmm_new_(&gp100_vmm, mmu, 0, managed, addr, size,
 			     argv, argc, key, name, pvmm);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp10b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp10b.c
index 13d0d48bab55..07b91d835e18 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp10b.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp10b.c
@@ -41,10 +41,10 @@ gp10b_vmm = {
 };
 
 int
-gp10b_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	      struct lock_class_key *key, const char *name,
-	      struct nvkm_vmm **pvmm)
+gp10b_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	      void *argv, u32 argc, struct lock_class_key *key,
+	      const char *name, struct nvkm_vmm **pvmm)
 {
-	return nv04_vmm_new_(&gp10b_vmm, mmu, 0, addr, size,
+	return nv04_vmm_new_(&gp10b_vmm, mmu, 0, managed, addr, size,
 			     argv, argc, key, name, pvmm);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgv100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgv100.c
index 8574bc980bbb..da5841aad70a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgv100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgv100.c
@@ -79,10 +79,10 @@ gv100_vmm = {
 };
 
 int
-gv100_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	      struct lock_class_key *key, const char *name,
-	      struct nvkm_vmm **pvmm)
+gv100_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	      void *argv, u32 argc, struct lock_class_key *key,
+	      const char *name, struct nvkm_vmm **pvmm)
 {
-	return nv04_vmm_new_(&gv100_vmm, mmu, 0, addr, size,
+	return nv04_vmm_new_(&gv100_vmm, mmu, 0, managed, addr, size,
 			     argv, argc, key, name, pvmm);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmmcp77.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmmcp77.c
index e63d984cbfd4..bdddd99f5877 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmmcp77.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmmcp77.c
@@ -36,10 +36,10 @@ mcp77_vmm = {
 };
 
 int
-mcp77_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	      struct lock_class_key *key, const char *name,
-	      struct nvkm_vmm **pvmm)
+mcp77_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	      void *argv, u32 argc, struct lock_class_key *key,
+	      const char *name, struct nvkm_vmm **pvmm)
 {
-	return nv04_vmm_new_(&mcp77_vmm, mmu, 0, addr, size,
+	return nv04_vmm_new_(&mcp77_vmm, mmu, 0, managed, addr, size,
 			     argv, argc, key, name, pvmm);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv04.c
index 0cab1ffc9f64..4c6b3b7d221f 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv04.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv04.c
@@ -100,16 +100,17 @@ nv04_vmm = {
 
 int
 nv04_vmm_new_(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu,
-	      u32 pd_header, u64 addr, u64 size, void *argv, u32 argc,
-	      struct lock_class_key *key, const char *name,
-	      struct nvkm_vmm **pvmm)
+	      u32 pd_header, bool managed, u64 addr, u64 size,
+	      void *argv, u32 argc, struct lock_class_key *key,
+	      const char *name, struct nvkm_vmm **pvmm)
 {
 	union {
 		struct nv04_vmm_vn vn;
 	} *args = argv;
 	int ret;
 
-	ret = nvkm_vmm_new_(func, mmu, pd_header, addr, size, key, name, pvmm);
+	ret = nvkm_vmm_new_(func, mmu, pd_header, managed, addr, size,
+			    key, name, pvmm);
 	if (ret)
 		return ret;
 
@@ -117,15 +118,15 @@ nv04_vmm_new_(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu,
 }
 
 int
-nv04_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	     struct lock_class_key *key, const char *name,
+nv04_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	     void *argv, u32 argc, struct lock_class_key *key, const char *name,
 	     struct nvkm_vmm **pvmm)
 {
 	struct nvkm_memory *mem;
 	struct nvkm_vmm *vmm;
 	int ret;
 
-	ret = nv04_vmm_new_(&nv04_vmm, mmu, 8, addr, size,
+	ret = nv04_vmm_new_(&nv04_vmm, mmu, 8, managed, addr, size,
 			    argv, argc, key, name, &vmm);
 	*pvmm = vmm;
 	if (ret)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv41.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv41.c
index b595f130e573..1d3369683a21 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv41.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv41.c
@@ -104,10 +104,10 @@ nv41_vmm = {
 };
 
 int
-nv41_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	     struct lock_class_key *key, const char *name,
+nv41_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	     void *argv, u32 argc, struct lock_class_key *key, const char *name,
 	     struct nvkm_vmm **pvmm)
 {
-	return nv04_vmm_new_(&nv41_vmm, mmu, 0, addr, size,
+	return nv04_vmm_new_(&nv41_vmm, mmu, 0, managed, addr, size,
 			     argv, argc, key, name, pvmm);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv44.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv44.c
index b834e4352334..a82936ba9890 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv44.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv44.c
@@ -205,15 +205,15 @@ nv44_vmm = {
 };
 
 int
-nv44_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	     struct lock_class_key *key, const char *name,
+nv44_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	     void *argv, u32 argc, struct lock_class_key *key, const char *name,
 	     struct nvkm_vmm **pvmm)
 {
 	struct nvkm_subdev *subdev = &mmu->subdev;
 	struct nvkm_vmm *vmm;
 	int ret;
 
-	ret = nv04_vmm_new_(&nv44_vmm, mmu, 0, addr, size,
+	ret = nv04_vmm_new_(&nv44_vmm, mmu, 0, managed, addr, size,
 			    argv, argc, key, name, &vmm);
 	*pvmm = vmm;
 	if (ret)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv50.c
index 64f75d906202..c98afe3134ee 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv50.c
@@ -376,10 +376,10 @@ nv50_vmm = {
 };
 
 int
-nv50_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
-	     struct lock_class_key *key, const char *name,
+nv50_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
+	     void *argv, u32 argc, struct lock_class_key *key, const char *name,
 	     struct nvkm_vmm **pvmm)
 {
-	return nv04_vmm_new_(&nv50_vmm, mmu, 0, addr, size,
+	return nv04_vmm_new_(&nv50_vmm, mmu, 0, managed, addr, size,
 			     argv, argc, key, name, pvmm);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmtu102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmtu102.c
index 56c630d141da..ddab7c6bfe7c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmtu102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmtu102.c
@@ -68,10 +68,10 @@ tu102_vmm = {
 };
 
 int
-tu102_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size,
+tu102_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
 	      void *argv, u32 argc, struct lock_class_key *key,
 	      const char *name, struct nvkm_vmm **pvmm)
 {
-	return nv04_vmm_new_(&tu102_vmm, mmu, 0, addr, size,
+	return nv04_vmm_new_(&tu102_vmm, mmu, 0, managed, addr, size,
 			     argv, argc, key, name, pvmm);
 }