This function becomes obsolete and may be removed.
Signed-off-by: Arunpravin Arunpravin.PaneerSelvam@amd.com --- drivers/gpu/drm/drm_buddy.c | 101 ------------------------------------ include/drm/drm_buddy.h | 4 -- 2 files changed, 105 deletions(-)
diff --git a/drivers/gpu/drm/drm_buddy.c b/drivers/gpu/drm/drm_buddy.c index f5f299dd9131..138e9f1a7340 100644 --- a/drivers/gpu/drm/drm_buddy.c +++ b/drivers/gpu/drm/drm_buddy.c @@ -457,107 +457,6 @@ int drm_buddy_alloc(struct drm_buddy_mm *mm, return err; }
-/* - * Allocate range. Note that it's safe to chain together multiple alloc_ranges - * with the same blocks list. - * - * Intended for pre-allocating portions of the address space, for example to - * reserve a block for the initial framebuffer or similar, hence the expectation - * here is that drm_buddy_alloc() is still the main vehicle for - * allocations, so if that's not the case then the drm_mm range allocator is - * probably a much better fit, and so you should probably go use that instead. - */ -int drm_buddy_alloc_range(struct drm_buddy_mm *mm, - struct list_head *blocks, - u64 start, u64 size) -{ - struct drm_buddy_block *block; - struct drm_buddy_block *buddy; - LIST_HEAD(allocated); - LIST_HEAD(dfs); - u64 end; - int err; - int i; - - if (size < mm->chunk_size) - return -EINVAL; - - if (!IS_ALIGNED(size | start, mm->chunk_size)) - return -EINVAL; - - if (range_overflows(start, size, mm->size)) - return -EINVAL; - - for (i = 0; i < mm->n_roots; ++i) - list_add_tail(&mm->roots[i]->tmp_link, &dfs); - - end = start + size - 1; - - do { - u64 block_start; - u64 block_end; - - block = list_first_entry_or_null(&dfs, - struct drm_buddy_block, - tmp_link); - if (!block) - break; - - list_del(&block->tmp_link); - - block_start = drm_buddy_block_offset(block); - block_end = block_start + drm_buddy_block_size(mm, block) - 1; - - if (!overlaps(start, end, block_start, block_end)) - continue; - - if (drm_buddy_block_is_allocated(block)) { - err = -ENOSPC; - goto err_free; - } - - if (contains(start, end, block_start, block_end)) { - if (!drm_buddy_block_is_free(block)) { - err = -ENOSPC; - goto err_free; - } - - mark_allocated(block); - mm->avail -= drm_buddy_block_size(mm, block); - list_add_tail(&block->link, &allocated); - continue; - } - - if (!drm_buddy_block_is_split(block)) { - err = split_block(mm, block); - if (unlikely(err)) - goto err_undo; - } - - list_add(&block->right->tmp_link, &dfs); - list_add(&block->left->tmp_link, &dfs); - } while (1); - - list_splice_tail(&allocated, blocks); - return 0; - -err_undo: - /* - * We really don't want to leave around a bunch of split blocks, since - * bigger is better, so make sure we merge everything back before we - * free the allocated blocks. - */ - buddy = get_buddy(block); - if (buddy && - (drm_buddy_block_is_free(block) && - drm_buddy_block_is_free(buddy))) - __drm_buddy_free(mm, block); - -err_free: - drm_buddy_free_list(mm, &allocated); - return err; -} - void drm_buddy_block_print(struct drm_buddy_mm *mm, struct drm_buddy_block *block, struct drm_printer *p) diff --git a/include/drm/drm_buddy.h b/include/drm/drm_buddy.h index c64fd4062cb6..ebf03d151845 100644 --- a/include/drm/drm_buddy.h +++ b/include/drm/drm_buddy.h @@ -144,10 +144,6 @@ int drm_buddy_alloc(struct drm_buddy_mm *mm, struct list_head *blocks, unsigned long flags);
-int drm_buddy_alloc_range(struct drm_buddy_mm *mm, - struct list_head *blocks, - u64 start, u64 size); - void drm_buddy_free(struct drm_buddy_mm *mm, struct drm_buddy_block *block);
void drm_buddy_free_list(struct drm_buddy_mm *mm, struct list_head *objects);