drm/ttm: remove ttm_buffer_object->buffer_start

All drivers set it to 0 and nothing uses it.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 0 insertions, 9 deletions

diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 36e8408e00f..a554c2e22d5 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -141,8 +141,6 @@ struct ttm_tt;
  * struct ttm_buffer_object
  *
  * @bdev: Pointer to the buffer object device structure.
- * @buffer_start: The virtual user-space start address of ttm_bo_type_user
- * buffers.
  * @type: The bo type.
  * @destroy: Destruction function. If NULL, kfree is used.
  * @num_pages: Actual number of pages.
@@ -200,7 +198,6 @@ struct ttm_buffer_object {
 
         struct ttm_bo_global *glob;
         struct ttm_bo_device *bdev;
-        unsigned long buffer_start;
         enum ttm_bo_type type;
         void (*destroy) (struct ttm_buffer_object *);
         unsigned long num_pages;
@@ -472,8 +469,6 @@ size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
  * @type: Requested type of buffer object.
  * @flags: Initial placement flags.
  * @page_alignment: Data alignment in pages.
- * @buffer_start: Virtual address of user space data backing a
- * user buffer object.
  * @interruptible: If needing to sleep to wait for GPU resources,
  * sleep interruptible.
  * @persistent_swap_storage: Usually the swap storage is deleted for buffers
@@ -505,7 +500,6 @@ extern int ttm_bo_init(struct ttm_bo_device *bdev,
                         enum ttm_bo_type type,
                         struct ttm_placement *placement,
                         uint32_t page_alignment,
-                        unsigned long buffer_start,
                         bool interrubtible,
                         struct file *persistent_swap_storage,
                         size_t acc_size,
@@ -521,8 +515,6 @@ extern int ttm_bo_init(struct ttm_bo_device *bdev,
  * @type: Requested type of buffer object.
  * @flags: Initial placement flags.
  * @page_alignment: Data alignment in pages.
- * @buffer_start: Virtual address of user space data backing a
- * user buffer object.
  * @interruptible: If needing to sleep while waiting for GPU resources,
  * sleep interruptible.
  * @persistent_swap_storage: Usually the swap storage is deleted for buffers
@@ -545,7 +537,6 @@ extern int ttm_bo_create(struct ttm_bo_device *bdev,
                                 enum ttm_bo_type type,
                                 struct ttm_placement *placement,
                                 uint32_t page_alignment,
-                                unsigned long buffer_start,
                                 bool interruptible,
                                 struct file *persistent_swap_storage,
                                 struct ttm_buffer_object **p_bo);