diff --git a/drivers/ddk/core.S b/drivers/ddk/core.S
index 561f7c3938..373c7e01b1 100644
--- a/drivers/ddk/core.S
+++ b/drivers/ddk/core.S
@@ -13,6 +13,7 @@
     .global _CreateEvent
     .global _CreateObject
     .global _CreateRingBuffer
+    .global _CreateThread
 
     .global _Delay
     .global _DestroyEvent
@@ -81,6 +82,7 @@
     .def  _CreateEvent;       .scl  2;  .type 32; .endef
     .def  _CreateObject;      .scl  2;  .type 32; .endef
     .def  _CreateRingBuffer;  .scl  2;  .type 32; .endef
+    .def  _CreateThread;      .scl  2;  .type 32; .endef
 
     .def  _Delay;             .scl  2;  .type 32; .endef
     .def  _DestroyEvent;      .scl  2;  .type 32; .endef
@@ -149,6 +151,7 @@ _AttachIntHandler:
 _CreateEvent:
 _CreateObject:
 _CreateRingBuffer:
+_CreateThread:
 
 _Delay:
 
@@ -219,8 +222,8 @@ _WaitEventTimeout:
 
         .ascii " -export:CreateEvent"          #
         .ascii " -export:CreateObject"         #
-
         .ascii " -export:CreateRingBuffer"     # stdcall
+        .ascii " -export:CreateThread"         #
 
         .ascii " -export:Delay"                # stdcall
 
diff --git a/drivers/include/drm/drm_mm.h b/drivers/include/drm/drm_mm.h
index db85aa325e..523f487c29 100644
--- a/drivers/include/drm/drm_mm.h
+++ b/drivers/include/drm/drm_mm.h
@@ -36,7 +36,10 @@
 /*
  * Generic range manager structs
  */
+#include <linux/bug.h>
+#include <linux/kernel.h>
 #include <linux/list.h>
+#include <linux/spinlock.h>
 #ifdef CONFIG_DEBUG_FS
 #include <linux/seq_file.h>
 #endif
diff --git a/drivers/include/drm/ttm/ttm_bo_api.h b/drivers/include/drm/ttm/ttm_bo_api.h
index abc29f26fe..41c44b3409 100644
--- a/drivers/include/drm/ttm/ttm_bo_api.h
+++ b/drivers/include/drm/ttm/ttm_bo_api.h
@@ -32,12 +32,12 @@
 #define _TTM_BO_API_H_
 
 #include <drm/drm_hashtab.h>
+#include <drm/drm_vma_manager.h>
 #include <linux/kref.h>
 #include <linux/list.h>
 #include <linux/wait.h>
 #include <linux/mutex.h>
 #include <linux/mm.h>
-#include <linux/rbtree.h>
 #include <linux/bitmap.h>
 
 struct ttm_bo_device;
@@ -195,7 +195,6 @@ struct ttm_buffer_object {
 	enum ttm_bo_type type;
 	void (*destroy) (struct ttm_buffer_object *);
 	unsigned long num_pages;
-	uint64_t addr_space_offset;
 	size_t acc_size;
 
 	/**
@@ -239,13 +238,7 @@ struct ttm_buffer_object {
 	void *sync_obj;
 	unsigned long priv_flags;
 
-	/**
-	 * Members protected by the bdev::vm_lock
-	 */
-
-//   struct rb_node vm_rb;
-	struct drm_mm_node *vm_node;
-
+	struct drm_vma_offset_node vma_node;
 
 	/**
 	 * Special members that are protected by the reserve lock
diff --git a/drivers/include/drm/ttm/ttm_bo_driver.h b/drivers/include/drm/ttm/ttm_bo_driver.h
index ed76920309..dcc21e6523 100644
--- a/drivers/include/drm/ttm/ttm_bo_driver.h
+++ b/drivers/include/drm/ttm/ttm_bo_driver.h
@@ -36,6 +36,7 @@
 #include <ttm/ttm_placement.h>
 #include <drm/drm_mm.h>
 #include <drm/drm_global.h>
+#include <drm/drm_vma_manager.h>
 //#include <linux/workqueue.h>
 //#include <linux/fs.h>
 #include <linux/spinlock.h>
@@ -538,14 +539,13 @@ struct ttm_bo_device {
 	struct list_head device_list;
 	struct ttm_bo_global *glob;
 	struct ttm_bo_driver *driver;
-	rwlock_t vm_lock;
 	struct ttm_mem_type_manager man[TTM_NUM_MEM_TYPES];
 	spinlock_t fence_lock;
+
 	/*
-	 * Protected by the vm lock.
+	 * Protected by internal locks.
 	 */
-	struct rb_root addr_space_rb;
-	struct drm_mm addr_space_mm;
+	struct drm_vma_offset_manager vma_manager;
 
 	/*
 	 * Protected by the global:lru lock.
diff --git a/drivers/include/linux/kernel.h b/drivers/include/linux/kernel.h
index 6efcd44a9b..308e1202ec 100644
--- a/drivers/include/linux/kernel.h
+++ b/drivers/include/linux/kernel.h
@@ -12,7 +12,7 @@
 #include <linux/types.h>
 #include <linux/compiler.h>
 #include <linux/bitops.h>
-
+#include <linux/errno.h>
 #include <linux/typecheck.h>
 
 #define __init
diff --git a/drivers/include/syscall.h b/drivers/include/syscall.h
index 63fafdabdf..89897972dc 100644
--- a/drivers/include/syscall.h
+++ b/drivers/include/syscall.h
@@ -143,6 +143,19 @@ int dbgprintf(const char* format, ...);
 
 ///////////////////////////////////////////////////////////////////////////////
 
+static inline int CreateKernelThread(void *entry)
+{
+    int pid;
+     __asm__ __volatile__ (
+     "call *__imp__CreateThread"
+     :"=a"(pid)
+     :"b"(1),"c"(entry),"d"(0)
+     :"memory");
+     __asm__ __volatile__ ("":::"ebx","ecx","edx","esi","edi");
+     return pid;
+};
+
+
 static inline evhandle_t CreateEvent(kevent_t *ev, u32_t flags)
 {
      evhandle_t evh;