Move fence- and buffer-object related header stuff to drm_ttm.h

2 files changed, 357 insertions, 371 deletions

diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index e0afc508..c3607c3f 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -591,117 +591,9 @@ typedef struct ati_pcigart_info {
 	drm_local_map_t mapping;
 } drm_ati_pcigart_info;
 
-/*
- * User space objects and their references.
- */
-
-#define drm_user_object_entry(_ptr, _type, _member) container_of(_ptr, _type, _member)
-
-typedef enum {
-		drm_fence_type,
-		drm_buffer_type,
-		drm_ttm_type
-
-		/*
-		 * Add other user space object types here. 
-		 */
-
-} drm_object_type_t;
-
-/*
- * A user object is a structure that helps the drm give out user handles
- * to kernel internal objects and to keep track of these objects so that 
- * they can be destroyed, for example when the user space process exits.
- * Designed to be accessible using a user space 32-bit handle. 
- */
-
-typedef struct drm_user_object{
-	drm_hash_item_t hash;
-	struct list_head list;
-	drm_object_type_t type;
-        atomic_t refcount;
-        int shareable;
-        drm_file_t *owner;
-	void (*ref_struct_locked) (drm_file_t *priv, struct drm_user_object *obj, 
-				   drm_ref_t ref_action); 
-	void (*unref)(drm_file_t *priv, struct drm_user_object *obj, 
-		      drm_ref_t unref_action);
-	void (*remove)(drm_file_t *priv, struct drm_user_object *obj);
-} drm_user_object_t;
-
-/*
- * A ref object is a structure which is used to
- * keep track of references to user objects and to keep track of these
- * references so that they can be destroyed for example when the user space
- * process exits. Designed to be accessible using a pointer to the _user_ object.
- */
-
-
-typedef struct drm_ref_object {
-	drm_hash_item_t hash;
-	struct list_head list;
-	atomic_t refcount;
-	drm_ref_t unref_action;
-} drm_ref_object_t;
-
-struct drm_buffer_object;
 
 #include "drm_ttm.h"
 
-#define _DRM_FLAG_MEMTYPE_FIXED     0x00000001   /* Fixed (on-card) PCI memory */
-#define _DRM_FLAG_MEMTYPE_MAPPABLE  0x00000002   /* Memory mappable */
-#define _DRM_FLAG_MEMTYPE_CACHED    0x00000004   /* Cached binding */
-#define _DRM_FLAG_NEEDS_IOREMAP     0x00000008   /* Fixed memory needs ioremap
-						    before kernel access. */
-#define _DRM_FLAG_MEMTYPE_CMA       0x00000010   /* Can't map aperture */
-#define _DRM_FLAG_MEMTYPE_CSELECT   0x00000020   /* Select caching */
-
-
-typedef struct drm_mem_type_manager {
-	int has_type;
-	int use_type;
-	drm_mm_t manager;
-	struct list_head lru;
-	struct list_head pinned;
-	uint32_t flags;
-        uint32_t drm_bus_maptype;
-	unsigned long io_offset;                 
-	unsigned long io_size;
-	void *io_addr;
-} drm_mem_type_manager_t;
-
-typedef struct drm_bo_mem_reg {
-	drm_mm_node_t *mm_node;
-	unsigned long size;
-	unsigned long num_pages;
-	uint32_t page_alignment;
-	uint32_t mem_type;
-	uint32_t flags;
-	uint32_t mask;
-} drm_bo_mem_reg_t;
-	
-/*
- * buffer object driver
- */
-
-typedef struct drm_bo_driver{
-        const uint32_t *mem_type_prio;
-	const uint32_t *mem_busy_prio;
-        uint32_t num_mem_type_prio;
-	uint32_t num_mem_busy_prio;
-	drm_ttm_backend_t *(*create_ttm_backend_entry) 
-		(struct drm_device *dev);
-	int (*fence_type)(uint32_t flags, uint32_t *class, uint32_t *type);
-	int (*invalidate_caches)(struct drm_device *dev, uint32_t flags);
-	int (*init_mem_type)(struct drm_device *dev, uint32_t type,
-			     drm_mem_type_manager_t *man);
-        uint32_t (*evict_flags) (struct drm_device *dev, uint32_t type);
-	int (*move)(struct drm_buffer_object *bo,
-		    int evict, int no_wait,
-		    struct drm_bo_mem_reg *new_mem);
-} drm_bo_driver_t;
-
-
 /**
  * DRM driver structure. This structure represent the common code for
  * a family of cards. There will one drm_device for each card present
@@ -787,61 +679,6 @@ typedef struct drm_head {
 } drm_head_t;
 
 
-typedef struct drm_fence_driver{
-	int no_types;
-	uint32_t wrap_diff;
-	uint32_t flush_diff;
-        uint32_t sequence_mask;
-        int lazy_capable;
-	int (*has_irq) (struct drm_device *dev, uint32_t class, uint32_t flags);
-	int (*emit) (struct drm_device *dev, uint32_t class, uint32_t flags,
-		     uint32_t *breadcrumb,
-		     uint32_t *native_type);
-	void (*poke_flush) (struct drm_device *dev, uint32_t class);
-} drm_fence_driver_t;
-
-#define _DRM_FENCE_TYPE_EXE 0x00
-
-typedef struct drm_fence_manager{
-        int initialized;
-	rwlock_t lock;
-
-	/*
-	 * The list below should be maintained in sequence order and 
-	 * access is protected by the above spinlock.
-	 */
-
-	struct list_head ring;
-	struct list_head *fence_types[32];
-	volatile uint32_t pending_flush;
-	wait_queue_head_t fence_queue;
-	int pending_exe_flush;
-	uint32_t last_exe_flush;
-	uint32_t exe_flush_sequence;
-        atomic_t count;
-} drm_fence_manager_t;
-
-typedef struct drm_buffer_manager{
-	struct mutex init_mutex;
-	struct mutex evict_mutex;
-	int nice_mode;
-	int initialized;
-        drm_file_t *last_to_validate;
-	drm_mem_type_manager_t man[DRM_BO_MEM_TYPES];
-	struct list_head unfenced;
-	struct list_head ddestroy;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-        struct work_struct wq;
-#else
-        struct delayed_work wq;
-#endif
-        uint32_t fence_type;
-        unsigned long cur_pages;
-        atomic_t count;
-} drm_buffer_manager_t;
-
-
-
 /**
  * DRM device structure. This structure represent a complete card that
  * may contain multiple heads.
@@ -996,77 +833,6 @@ typedef struct drm_agp_ttm_priv {
 } drm_agp_ttm_priv;
 #endif
 
-typedef struct drm_fence_object{
-	drm_user_object_t base;
-        atomic_t usage;
-
-	/*
-	 * The below three fields are protected by the fence manager spinlock.
-	 */
-
-	struct list_head ring;
-        int class;
-        uint32_t native_type;
-	uint32_t type;
-	uint32_t signaled;
-	uint32_t sequence;
-	uint32_t flush_mask;
-	uint32_t submitted_flush;
-} drm_fence_object_t;
-
-
-typedef struct drm_buffer_object{
-	drm_device_t *dev;
-	drm_user_object_t base;
-
-    /*
-     * If there is a possibility that the usage variable is zero,
-     * then dev->struct_mutext should be locked before incrementing it.
-     */
-
-	atomic_t usage;
-        unsigned long buffer_start;
-        drm_bo_type_t type;
-        unsigned long offset;
-	atomic_t mapped;
-	drm_bo_mem_reg_t mem;
-
-        struct list_head lru;
-	struct list_head ddestroy;
-
-	uint32_t fence_type;
-        uint32_t fence_class;
-	drm_fence_object_t *fence;
-        uint32_t priv_flags;
-	wait_queue_head_t event_queue;
-        struct mutex mutex;
-
-	/* For pinned buffers */
-	drm_mm_node_t *pinned_node;
-	uint32_t pinned_mem_type;
-	struct list_head pinned_lru;
-
-	/* For vm */
-
-        drm_ttm_t *ttm;
-        drm_map_list_t map_list;
-	uint32_t memory_type;
-	unsigned long bus_offset;
-	uint32_t vm_flags;
-        void *iomap;
-  
-        
-#ifdef DRM_ODD_MM_COMPAT
-  /* dev->struct_mutex only protected. */
-	struct list_head vma_list;
-	struct list_head p_mm_list;
-#endif
-
-} drm_buffer_object_t;
-
-#define _DRM_BO_FLAG_UNFENCED 0x00000001
-#define _DRM_BO_FLAG_EVICTED  0x00000002
-
 
 static __inline__ int drm_core_check_feature(struct drm_device *dev,
 					     int feature)
@@ -1408,144 +1174,9 @@ static inline drm_mm_t *drm_get_mm(drm_mm_node_t *block)
 }
   
 
-/*
- * User space object bookkeeping (drm_object.c)
- */
-
-/*
- * Must be called with the struct_mutex held.
- */
-
-extern int drm_add_user_object(drm_file_t *priv, drm_user_object_t *item, 
-
-/*
- * Must be called with the struct_mutex held.
- */
-			       int shareable);
-extern drm_user_object_t *drm_lookup_user_object(drm_file_t *priv, uint32_t key);
-
-/*
- * Must be called with the struct_mutex held.
- * If "item" has been obtained by a call to drm_lookup_user_object. You may not
- * release the struct_mutex before calling drm_remove_ref_object.
- * This function may temporarily release the struct_mutex.
- */
-
-extern int drm_remove_user_object(drm_file_t *priv, drm_user_object_t *item);
 
-/*
- * Must be called with the struct_mutex held. May temporarily release it.
- */
 
-extern int drm_add_ref_object(drm_file_t *priv, drm_user_object_t *referenced_object,
-			      drm_ref_t ref_action);
-
-/*
- * Must be called with the struct_mutex held.
- */
-
-drm_ref_object_t *drm_lookup_ref_object(drm_file_t *priv, 
-					drm_user_object_t *referenced_object,
-					drm_ref_t ref_action);
-/*
- * Must be called with the struct_mutex held.
- * If "item" has been obtained by a call to drm_lookup_ref_object. You may not
- * release the struct_mutex before calling drm_remove_ref_object.
- * This function may temporarily release the struct_mutex.
- */
-
-extern void drm_remove_ref_object(drm_file_t *priv, drm_ref_object_t *item);
-extern int drm_user_object_ref(drm_file_t *priv, uint32_t user_token, drm_object_type_t type,
-			       drm_user_object_t **object);
-extern int drm_user_object_unref(drm_file_t *priv, uint32_t user_token, drm_object_type_t type);
-
-
-
-/*
- * fence objects (drm_fence.c)
- */
-
-extern void drm_fence_handler(drm_device_t *dev, uint32_t class,
-			      uint32_t sequence, uint32_t type);
-extern void drm_fence_manager_init(drm_device_t *dev);
-extern void drm_fence_manager_takedown(drm_device_t *dev);
-extern void drm_fence_flush_old(drm_device_t *dev, uint32_t sequence);
-extern int drm_fence_object_flush(drm_device_t * dev,
-				  volatile drm_fence_object_t * fence, 
-				  uint32_t type);
-extern int drm_fence_object_signaled(volatile drm_fence_object_t * fence, 
-				     uint32_t type);
-extern void drm_fence_usage_deref_locked(drm_device_t * dev,
-					 drm_fence_object_t * fence);
-extern void drm_fence_usage_deref_unlocked(drm_device_t * dev,
-					 drm_fence_object_t * fence);
-extern int drm_fence_object_wait(drm_device_t * dev, 
-				 volatile drm_fence_object_t * fence,
-				 int lazy, int ignore_signals, uint32_t mask);
-extern int drm_fence_object_create(drm_device_t *dev, uint32_t type,
-				   uint32_t fence_flags, 
-				   drm_fence_object_t **c_fence);
-extern int drm_fence_add_user_object(drm_file_t *priv, 
-				     drm_fence_object_t *fence,
-				     int shareable);
-
-
-
-
-
-extern int drm_fence_ioctl(DRM_IOCTL_ARGS);
-
-/*
- * buffer objects (drm_bo.c)
- */
-
-extern int drm_bo_ioctl(DRM_IOCTL_ARGS);
-extern int drm_mm_init_ioctl(DRM_IOCTL_ARGS);
-extern int drm_bo_driver_finish(drm_device_t *dev);
-extern int drm_bo_driver_init(drm_device_t *dev);
-extern int drm_bo_pci_offset(drm_device_t *dev,
-			     drm_bo_mem_reg_t *mem,
-			     unsigned long *bus_base,
-			     unsigned long *bus_offset,
-			     unsigned long *bus_size);
-extern int drm_mem_reg_is_pci(drm_device_t *dev, drm_bo_mem_reg_t *mem);
-
-
-extern void drm_bo_usage_deref_locked(drm_buffer_object_t * bo);
-extern int drm_fence_buffer_objects(drm_file_t * priv,
-				    struct list_head *list, 
-				    uint32_t fence_flags,
-				    drm_fence_object_t *fence,
-				    drm_fence_object_t **used_fence);
-extern void drm_bo_add_to_lru(drm_buffer_object_t * bo);
-extern int drm_bo_wait(drm_buffer_object_t * bo, int lazy, int ignore_signals,
-		       int no_wait);
-extern int drm_bo_mem_space(drm_buffer_object_t *bo,
-			    drm_bo_mem_reg_t *mem,
-			    int no_wait);
-extern int drm_bo_move_buffer(drm_buffer_object_t * bo, uint32_t new_mem_flags,
-			      int no_wait, int move_unfenced);
-
-
-/*
- * Buffer object memory move helpers.
- * drm_bo_move.c
- */
 
-extern int drm_bo_move_ttm(drm_buffer_object_t *bo, 
-			   int evict,
-			   int no_wait,
-			   drm_bo_mem_reg_t *new_mem);
-extern int drm_bo_move_memcpy(drm_buffer_object_t *bo, 
-			      int evict,
-			      int no_wait,
-			      drm_bo_mem_reg_t *new_mem);
-extern int drm_bo_move_accel_cleanup(drm_buffer_object_t *bo,
-				     int evict,
-				     int no_wait,
-				     uint32_t fence_type,
-				     uint32_t fence_flags,
-				     drm_bo_mem_reg_t *new_mem);
 
 extern void drm_core_ioremap(struct drm_map *map, struct drm_device *dev);
 extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev);
diff --git a/linux-core/drm_ttm.h b/linux-core/drm_ttm.h
index b96f5cee..04fb1707 100644
--- a/linux-core/drm_ttm.h
+++ b/linux-core/drm_ttm.h
@@ -32,11 +32,199 @@
 #define _DRM_TTM_H
 #define DRM_HAS_TTM
 
+struct drm_device;
+
+/***************************************************
+ * User space objects. (drm_object.c)
+ */
+
+#define drm_user_object_entry(_ptr, _type, _member) container_of(_ptr, _type, _member)
+
+typedef enum {
+	drm_fence_type,
+	drm_buffer_type,
+	drm_ttm_type
+	    /*
+	     * Add other user space object types here.
+	     */
+} drm_object_type_t;
+
+/*
+ * A user object is a structure that helps the drm give out user handles
+ * to kernel internal objects and to keep track of these objects so that
+ * they can be destroyed, for example when the user space process exits.
+ * Designed to be accessible using a user space 32-bit handle.
+ */
+
+typedef struct drm_user_object {
+	drm_hash_item_t hash;
+	struct list_head list;
+	drm_object_type_t type;
+	atomic_t refcount;
+	int shareable;
+	drm_file_t *owner;
+	void (*ref_struct_locked) (drm_file_t * priv,
+				   struct drm_user_object * obj,
+				   drm_ref_t ref_action);
+	void (*unref) (drm_file_t * priv, struct drm_user_object * obj,
+		       drm_ref_t unref_action);
+	void (*remove) (drm_file_t * priv, struct drm_user_object * obj);
+} drm_user_object_t;
+
+/*
+ * A ref object is a structure which is used to
+ * keep track of references to user objects and to keep track of these
+ * references so that they can be destroyed for example when the user space
+ * process exits. Designed to be accessible using a pointer to the _user_ object.
+ */
+
+typedef struct drm_ref_object {
+	drm_hash_item_t hash;
+	struct list_head list;
+	atomic_t refcount;
+	drm_ref_t unref_action;
+} drm_ref_object_t;
+
+/**
+ * Must be called with the struct_mutex held.
+ */
+
+extern int drm_add_user_object(drm_file_t * priv, drm_user_object_t * item,
+			       int shareable);
+/**
+ * Must be called with the struct_mutex held.
+ */
+
+extern drm_user_object_t *drm_lookup_user_object(drm_file_t * priv,
+						 uint32_t key);
+
+/*
+ * Must be called with the struct_mutex held.
+ * If "item" has been obtained by a call to drm_lookup_user_object. You may not
+ * release the struct_mutex before calling drm_remove_ref_object.
+ * This function may temporarily release the struct_mutex.
+ */
+
+extern int drm_remove_user_object(drm_file_t * priv, drm_user_object_t * item);
+
+/*
+ * Must be called with the struct_mutex held. May temporarily release it.
+ */
+
+extern int drm_add_ref_object(drm_file_t * priv,
+			      drm_user_object_t * referenced_object,
+			      drm_ref_t ref_action);
+
 /*
- * The backend GART interface. (In our case AGP). Any similar type of device (PCIE?)
+ * Must be called with the struct_mutex held.
+ */
+
+drm_ref_object_t *drm_lookup_ref_object(drm_file_t * priv,
+					drm_user_object_t * referenced_object,
+					drm_ref_t ref_action);
+/*
+ * Must be called with the struct_mutex held.
+ * If "item" has been obtained by a call to drm_lookup_ref_object. You may not
+ * release the struct_mutex before calling drm_remove_ref_object.
+ * This function may temporarily release the struct_mutex.
+ */
+
+extern void drm_remove_ref_object(drm_file_t * priv, drm_ref_object_t * item);
+extern int drm_user_object_ref(drm_file_t * priv, uint32_t user_token,
+			       drm_object_type_t type,
+			       drm_user_object_t ** object);
+extern int drm_user_object_unref(drm_file_t * priv, uint32_t user_token,
+				 drm_object_type_t type);
+
+/***************************************************
+ * Fence objects. (drm_fence.c)
+ */
+
+typedef struct drm_fence_object {
+	drm_user_object_t base;
+	atomic_t usage;
+
+	/*
+	 * The below three fields are protected by the fence manager spinlock.
+	 */
+
+	struct list_head ring;
+	int class;
+	uint32_t native_type;
+	uint32_t type;
+	uint32_t signaled;
+	uint32_t sequence;
+	uint32_t flush_mask;
+	uint32_t submitted_flush;
+} drm_fence_object_t;
+
+#define _DRM_FENCE_TYPE_EXE 0x00
+
+typedef struct drm_fence_manager {
+	int initialized;
+	rwlock_t lock;
+
+	/*
+	 * The list below should be maintained in sequence order and
+	 * access is protected by the above spinlock.
+	 */
+
+	struct list_head ring;
+	struct list_head *fence_types[32];
+	volatile uint32_t pending_flush;
+	wait_queue_head_t fence_queue;
+	int pending_exe_flush;
+	uint32_t last_exe_flush;
+	uint32_t exe_flush_sequence;
+	atomic_t count;
+} drm_fence_manager_t;
+
+typedef struct drm_fence_driver {
+	int no_types;
+	uint32_t wrap_diff;
+	uint32_t flush_diff;
+	uint32_t sequence_mask;
+	int lazy_capable;
+	int (*has_irq) (struct drm_device * dev, uint32_t class,
+			uint32_t flags);
+	int (*emit) (struct drm_device * dev, uint32_t class, uint32_t flags,
+		     uint32_t * breadcrumb, uint32_t * native_type);
+	void (*poke_flush) (struct drm_device * dev, uint32_t class);
+} drm_fence_driver_t;
+
+extern void drm_fence_handler(struct drm_device *dev, uint32_t class,
+			      uint32_t sequence, uint32_t type);
+extern void drm_fence_manager_init(struct drm_device *dev);
+extern void drm_fence_manager_takedown(struct drm_device *dev);
+extern void drm_fence_flush_old(struct drm_device *dev, uint32_t sequence);
+extern int drm_fence_object_flush(struct drm_device *dev,
+				  drm_fence_object_t * fence, uint32_t type);
+extern int drm_fence_object_signaled(drm_fence_object_t * fence, uint32_t type);
+extern void drm_fence_usage_deref_locked(struct drm_device *dev,
+					 drm_fence_object_t * fence);
+extern void drm_fence_usage_deref_unlocked(struct drm_device *dev,
+					   drm_fence_object_t * fence);
+extern int drm_fence_object_wait(struct drm_device *dev,
+				 drm_fence_object_t * fence,
+				 int lazy, int ignore_signals, uint32_t mask);
+extern int drm_fence_object_create(struct drm_device *dev, uint32_t type,
+				   uint32_t fence_flags,
+				   drm_fence_object_t ** c_fence);
+extern int drm_fence_add_user_object(drm_file_t * priv,
+				     drm_fence_object_t * fence, int shareable);
+extern int drm_fence_ioctl(DRM_IOCTL_ARGS);
+
+/**************************************************
+ *TTMs
+ */
+
+/*
+ * The ttm backend GTT interface. (In our case AGP).
+ * Any similar type of device (PCIE?)
  * needs only to implement these functions to be usable with the "TTM" interface.
  * The AGP backend implementation lives in drm_agpsupport.c 
- * basically maps these calls to available functions in agpgart. Each drm device driver gets an
+ * basically maps these calls to available functions in agpgart.
+ * Each drm device driver gets an
  * additional function pointer that creates these types, 
  * so that the device can choose the correct aperture.
  * (Multiple AGP apertures, etc.) 
@@ -111,4 +299,171 @@ extern int drm_destroy_ttm(drm_ttm_t * ttm);
 #define DRM_TTM_PAGE_PRESENT  0x08
 #define DRM_TTM_PAGE_VMALLOC  0x10
 
+/***************************************************
+ * Buffer objects. (drm_bo.c, drm_bo_move.c)
+ */
+
+typedef struct drm_bo_mem_reg {
+	drm_mm_node_t *mm_node;
+	unsigned long size;
+	unsigned long num_pages;
+	uint32_t page_alignment;
+	uint32_t mem_type;
+	uint32_t flags;
+	uint32_t mask;
+} drm_bo_mem_reg_t;
+
+typedef struct drm_buffer_object {
+	struct drm_device *dev;
+	drm_user_object_t base;
+
+	/*
+	 * If there is a possibility that the usage variable is zero,
+	 * then dev->struct_mutext should be locked before incrementing it.
+	 */
+
+	atomic_t usage;
+	unsigned long buffer_start;
+	drm_bo_type_t type;
+	unsigned long offset;
+	atomic_t mapped;
+	drm_bo_mem_reg_t mem;
+
+	struct list_head lru;
+	struct list_head ddestroy;
+
+	uint32_t fence_type;
+	uint32_t fence_class;
+	drm_fence_object_t *fence;
+	uint32_t priv_flags;
+	wait_queue_head_t event_queue;
+	struct mutex mutex;
+
+	/* For pinned buffers */
+	drm_mm_node_t *pinned_node;
+	uint32_t pinned_mem_type;
+	struct list_head pinned_lru;
+
+	/* For vm */
+
+	drm_ttm_t *ttm;
+	drm_map_list_t map_list;
+	uint32_t memory_type;
+	unsigned long bus_offset;
+	uint32_t vm_flags;
+	void *iomap;
+
+#ifdef DRM_ODD_MM_COMPAT
+	/* dev->struct_mutex only protected. */
+	struct list_head vma_list;
+	struct list_head p_mm_list;
+#endif
+
+} drm_buffer_object_t;
+
+#define _DRM_BO_FLAG_UNFENCED 0x00000001
+#define _DRM_BO_FLAG_EVICTED  0x00000002
+
+typedef struct drm_mem_type_manager {
+	int has_type;
+	int use_type;
+	drm_mm_t manager;
+	struct list_head lru;
+	struct list_head pinned;
+	uint32_t flags;
+	uint32_t drm_bus_maptype;
+	unsigned long io_offset;
+	unsigned long io_size;
+	void *io_addr;
+} drm_mem_type_manager_t;
+
+#define _DRM_FLAG_MEMTYPE_FIXED     0x00000001	/* Fixed (on-card) PCI memory */
+#define _DRM_FLAG_MEMTYPE_MAPPABLE  0x00000002	/* Memory mappable */
+#define _DRM_FLAG_MEMTYPE_CACHED    0x00000004	/* Cached binding */
+#define _DRM_FLAG_NEEDS_IOREMAP     0x00000008	/* Fixed memory needs ioremap
+						   before kernel access. */
+#define _DRM_FLAG_MEMTYPE_CMA       0x00000010	/* Can't map aperture */
+#define _DRM_FLAG_MEMTYPE_CSELECT   0x00000020	/* Select caching */
+
+typedef struct drm_buffer_manager {
+	struct mutex init_mutex;
+	struct mutex evict_mutex;
+	int nice_mode;
+	int initialized;
+	drm_file_t *last_to_validate;
+	drm_mem_type_manager_t man[DRM_BO_MEM_TYPES];
+	struct list_head unfenced;
+	struct list_head ddestroy;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
+	struct work_struct wq;
+#else
+	struct delayed_work wq;
+#endif
+	uint32_t fence_type;
+	unsigned long cur_pages;
+	atomic_t count;
+} drm_buffer_manager_t;
+
+typedef struct drm_bo_driver {
+	const uint32_t *mem_type_prio;
+	const uint32_t *mem_busy_prio;
+	uint32_t num_mem_type_prio;
+	uint32_t num_mem_busy_prio;
+	drm_ttm_backend_t *(*create_ttm_backend_entry)
+	 (struct drm_device * dev);
+	int (*fence_type) (uint32_t flags, uint32_t * class, uint32_t * type);
+	int (*invalidate_caches) (struct drm_device * dev, uint32_t flags);
+	int (*init_mem_type) (struct drm_device * dev, uint32_t type,
+			      drm_mem_type_manager_t * man);
+	 uint32_t(*evict_flags) (struct drm_device * dev, uint32_t type);
+	int (*move) (struct drm_buffer_object * bo,
+		     int evict, int no_wait, struct drm_bo_mem_reg * new_mem);
+} drm_bo_driver_t;
+
+/*
+ * buffer objects (drm_bo.c)
+ */
+
+extern int drm_bo_ioctl(DRM_IOCTL_ARGS);
+extern int drm_mm_init_ioctl(DRM_IOCTL_ARGS);
+extern int drm_bo_driver_finish(struct drm_device *dev);
+extern int drm_bo_driver_init(struct drm_device *dev);
+extern int drm_bo_pci_offset(struct drm_device *dev,
+			     drm_bo_mem_reg_t * mem,
+			     unsigned long *bus_base,
+			     unsigned long *bus_offset,
+			     unsigned long *bus_size);
+extern int drm_mem_reg_is_pci(struct drm_device *dev, drm_bo_mem_reg_t * mem);
+
+extern void drm_bo_usage_deref_locked(drm_buffer_object_t * bo);
+extern int drm_fence_buffer_objects(drm_file_t * priv,
+				    struct list_head *list,
+				    uint32_t fence_flags,
+				    drm_fence_object_t * fence,
+				    drm_fence_object_t ** used_fence);
+extern void drm_bo_add_to_lru(drm_buffer_object_t * bo);
+extern int drm_bo_wait(drm_buffer_object_t * bo, int lazy, int ignore_signals,
+		       int no_wait);
+extern int drm_bo_mem_space(drm_buffer_object_t * bo,
+			    drm_bo_mem_reg_t * mem, int no_wait);
+extern int drm_bo_move_buffer(drm_buffer_object_t * bo, uint32_t new_mem_flags,
+			      int no_wait, int move_unfenced);
+
+/*
+ * Buffer object memory move helpers.
+ * drm_bo_move.c
+ */
+
+extern int drm_bo_move_ttm(drm_buffer_object_t * bo,
+			   int evict, int no_wait, drm_bo_mem_reg_t * new_mem);
+extern int drm_bo_move_memcpy(drm_buffer_object_t * bo,
+			      int evict,
+			      int no_wait, drm_bo_mem_reg_t * new_mem);
+extern int drm_bo_move_accel_cleanup(drm_buffer_object_t * bo,
+				     int evict,
+				     int no_wait,
+				     uint32_t fence_type,
+				     uint32_t fence_flags,
+				     drm_bo_mem_reg_t * new_mem);
+
 #endif