This function becomes obsolete and may be removed.
Signed-off-by: Arunpravin <arunpravin.paneersel...@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);
--
2.25.1
