drm/ttm: Convert ttm_buffer_object_init to use ttm_placement

Convert ttm_buffer_object_init to use struct ttm_placement and
rename to ttm_bo_init for consistency with function naming. This
allow to give more complex placement at buffer creation. For
instance you ask to allocate bo into vram first but if there is
not enough vram you can give system as a second possible
placement. It also allow to create buffer in a specific range.

Also rename ttm_buffer_object_validate to ttm_bo_validate.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 30 insertions, 33 deletions

diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 4fd498523ce3..81eb9f45883c 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -308,7 +308,7 @@ ttm_bo_reference(struct ttm_buffer_object *bo)
 extern int ttm_bo_wait(struct ttm_buffer_object *bo, bool lazy,
                        bool interruptible, bool no_wait);
 /**
- * ttm_buffer_object_validate
+ * ttm_bo_validate
  *
  * @bo: The buffer object.
  * @placement: Proposed placement for the buffer object.
@@ -323,9 +323,9 @@ extern int ttm_bo_wait(struct ttm_buffer_object *bo, bool lazy,
  * -EBUSY if no_wait is true and buffer busy.
  * -ERESTARTSYS if interrupted by a signal.
  */
-extern int ttm_buffer_object_validate(struct ttm_buffer_object *bo,
-                                        struct ttm_placement *placement,
-                                        bool interruptible, bool no_wait);
+extern int ttm_bo_validate(struct ttm_buffer_object *bo,
+                                struct ttm_placement *placement,
+                                bool interruptible, bool no_wait);
 
 /**
  * ttm_bo_unref
@@ -362,7 +362,7 @@ ttm_bo_synccpu_write_grab(struct ttm_buffer_object *bo, bool no_wait);
 extern void ttm_bo_synccpu_write_release(struct ttm_buffer_object *bo);
 
 /**
- * ttm_buffer_object_init
+ * ttm_bo_init
  *
  * @bdev: Pointer to a ttm_bo_device struct.
  * @bo: Pointer to a ttm_buffer_object to be initialized.
@@ -393,17 +393,17 @@ extern void ttm_bo_synccpu_write_release(struct ttm_buffer_object *bo);
  * -ERESTARTSYS: Interrupted by signal while sleeping waiting for resources.
  */
 
-extern int ttm_buffer_object_init(struct ttm_bo_device *bdev,
-                                  struct ttm_buffer_object *bo,
-                                  unsigned long size,
-                                  enum ttm_bo_type type,
-                                  uint32_t flags,
-                                  uint32_t page_alignment,
-                                  unsigned long buffer_start,
-                                  bool interrubtible,
-                                  struct file *persistant_swap_storage,
-                                  size_t acc_size,
-                                  void (*destroy) (struct ttm_buffer_object *));
+extern int ttm_bo_init(struct ttm_bo_device *bdev,
+                        struct ttm_buffer_object *bo,
+                        unsigned long size,
+                        enum ttm_bo_type type,
+                        struct ttm_placement *placement,
+                        uint32_t page_alignment,
+                        unsigned long buffer_start,
+                        bool interrubtible,
+                        struct file *persistant_swap_storage,
+                        size_t acc_size,
+                        void (*destroy) (struct ttm_buffer_object *));
 /**
  * ttm_bo_synccpu_object_init
  *
@@ -424,40 +424,37 @@ extern int ttm_buffer_object_init(struct ttm_bo_device *bdev,
  * GEM user interface.
  * @p_bo: On successful completion *p_bo points to the created object.
  *
- * This function allocates a ttm_buffer_object, and then calls
- * ttm_buffer_object_init on that object.
- * The destroy function is set to kfree().
+ * This function allocates a ttm_buffer_object, and then calls ttm_bo_init
+ * on that object. The destroy function is set to kfree().
  * Returns
  * -ENOMEM: Out of memory.
  * -EINVAL: Invalid placement flags.
  * -ERESTARTSYS: Interrupted by signal while waiting for resources.
  */
 
-extern int ttm_buffer_object_create(struct ttm_bo_device *bdev,
-                                    unsigned long size,
-                                    enum ttm_bo_type type,
-                                    uint32_t flags,
-                                    uint32_t page_alignment,
-                                    unsigned long buffer_start,
-                                    bool interruptible,
-                                    struct file *persistant_swap_storage,
-                                    struct ttm_buffer_object **p_bo);
+extern int ttm_bo_create(struct ttm_bo_device *bdev,
+                                unsigned long size,
+                                enum ttm_bo_type type,
+                                struct ttm_placement *placement,
+                                uint32_t page_alignment,
+                                unsigned long buffer_start,
+                                bool interruptible,
+                                struct file *persistant_swap_storage,
+                                struct ttm_buffer_object **p_bo);
 
 /**
  * ttm_bo_check_placement
  *
- * @bo: the buffer object.
- * @set_flags: placement flags to set.
- * @clr_flags: placement flags to clear.
+ * @bo:         the buffer object.
+ * @placement:  placements
  *
  * Performs minimal validity checking on an intended change of
  * placement flags.
  * Returns
  * -EINVAL: Intended change is invalid or not allowed.
  */
-
 extern int ttm_bo_check_placement(struct ttm_buffer_object *bo,
-                                  uint32_t set_flags, uint32_t clr_flags);
+                                        struct ttm_placement *placement);
 
 /**
  * ttm_bo_init_mm