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, 2 insertions, 6 deletions

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index e6bfcfdd3b60..f65182667825 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1179,7 +1179,6 @@ 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 interruptible,
                 struct file *persistent_swap_storage,
                 size_t acc_size,
@@ -1200,7 +1199,6 @@ int ttm_bo_init(struct ttm_bo_device *bdev,
                 return -ENOMEM;
         }
 
-        size += buffer_start & ~PAGE_MASK;
         num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
         if (num_pages == 0) {
                 pr_err("Illegal buffer object size\n");
@@ -1233,7 +1231,6 @@ int ttm_bo_init(struct ttm_bo_device *bdev,
         bo->mem.page_alignment = page_alignment;
         bo->mem.bus.io_reserved_vm = false;
         bo->mem.bus.io_reserved_count = 0;
-        bo->buffer_start = buffer_start & PAGE_MASK;
         bo->priv_flags = 0;
         bo->mem.placement = (TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED);
         bo->seq_valid = false;
@@ -1306,7 +1303,6 @@ 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)
@@ -1321,8 +1317,8 @@ int ttm_bo_create(struct ttm_bo_device *bdev,
 
         acc_size = ttm_bo_acc_size(bdev, size, sizeof(struct ttm_buffer_object));
         ret = ttm_bo_init(bdev, bo, size, type, placement, page_alignment,
-                                buffer_start, interruptible,
-                          persistent_swap_storage, acc_size, NULL, NULL);
+                          interruptible, persistent_swap_storage, acc_size,
+                          NULL, NULL);
         if (likely(ret == 0))
                 *p_bo = bo;