static int ttm_bo_man_get_node(struct ttm_buffer_object *bo,
struct ttm_mem_type_manager *man,
struct ttm_placement *placement,
struct ttm_mem_reg *mem,
struct drm_mm_node **node)
{
struct ttm_bo_global *glob = bo->glob;
unsigned long lpfn;
int ret;
lpfn = placement->lpfn;
if (!lpfn)
lpfn = man->size;
*node = NULL;
do {
ret = drm_mm_pre_get(&man->manager);
if (unlikely(ret))
return ret;
spin_lock(&glob->lru_lock);
*node = drm_mm_search_free_in_range(&man->manager,
mem->num_pages, mem->page_alignment,
placement->fpfn, lpfn, 1);
if (unlikely(*node == NULL)) {
spin_unlock(&glob->lru_lock);
return 0;
}
*node = drm_mm_get_block_atomic_range(*node, mem->num_pages,
mem->page_alignment,
placement->fpfn,
lpfn);
spin_unlock(&glob->lru_lock);
} while (*node == NULL);
return 0;
}
static int ttm_bo_man_get_node(struct ttm_mem_type_manager *man,
struct ttm_buffer_object *bo,
struct ttm_placement *placement,
struct ttm_mem_reg *mem)
{
struct ttm_range_manager *rman = (struct ttm_range_manager *) man->priv;
struct drm_mm *mm = &rman->mm;
struct drm_mm_node *node = NULL;
unsigned long lpfn;
int ret;
lpfn = placement->lpfn;
if (!lpfn)
lpfn = man->size;
do {
ret = drm_mm_pre_get(mm);
if (unlikely(ret))
return ret;
spin_lock(&rman->lock);
node = drm_mm_search_free_in_range(mm,
mem->num_pages, mem->page_alignment,
placement->fpfn, lpfn,
DRM_MM_SEARCH_BEST);
if (unlikely(node == NULL)) {
spin_unlock(&rman->lock);
return 0;
}
node = drm_mm_get_block_atomic_range(node, mem->num_pages,
mem->page_alignment,
placement->fpfn,
lpfn);
spin_unlock(&rman->lock);
} while (node == NULL);
mem->mm_node = node;
mem->start = node->start;
return 0;
}
