{
struct amdgpu_gtt_mgr *mgr = man->priv;
struct drm_mm_node *node = mem->mm_node;
- enum drm_mm_search_flags sflags = DRM_MM_SEARCH_BEST;
- enum drm_mm_allocator_flags aflags = DRM_MM_CREATE_DEFAULT;
+ enum drm_mm_insert_mode mode;
unsigned long fpfn, lpfn;
int r;
else
lpfn = man->size;
- if (place && place->flags & TTM_PL_FLAG_TOPDOWN) {
- sflags = DRM_MM_SEARCH_BELOW;
- aflags = DRM_MM_CREATE_TOP;
- }
+ mode = DRM_MM_INSERT_BEST;
+ if (place && place->flags & TTM_PL_FLAG_TOPDOWN)
+ mode = DRM_MM_INSERT_HIGH;
spin_lock(&mgr->lock);
- r = drm_mm_insert_node_in_range_generic(&mgr->mm, node, mem->num_pages,
- mem->page_alignment, 0,
- fpfn, lpfn, sflags, aflags);
+ r = drm_mm_insert_node_in_range(&mgr->mm, node,
+ mem->num_pages, mem->page_alignment, 0,
+ fpfn, lpfn, mode);
spin_unlock(&mgr->lock);
if (!r) {
struct amdgpu_vram_mgr *mgr = man->priv;
struct drm_mm *mm = &mgr->mm;
struct drm_mm_node *nodes;
- enum drm_mm_search_flags sflags = DRM_MM_SEARCH_DEFAULT;
- enum drm_mm_allocator_flags aflags = DRM_MM_CREATE_DEFAULT;
+ enum drm_mm_insert_mode mode;
unsigned long lpfn, num_nodes, pages_per_node, pages_left;
unsigned i;
int r;
if (!nodes)
return -ENOMEM;
- if (place->flags & TTM_PL_FLAG_TOPDOWN) {
- sflags = DRM_MM_SEARCH_BELOW;
- aflags = DRM_MM_CREATE_TOP;
- }
+ mode = DRM_MM_INSERT_BEST;
+ if (place->flags & TTM_PL_FLAG_TOPDOWN)
+ mode = DRM_MM_INSERT_HIGH;
pages_left = mem->num_pages;
if (pages == pages_per_node)
alignment = pages_per_node;
- else
- sflags |= DRM_MM_SEARCH_BEST;
- r = drm_mm_insert_node_in_range_generic(mm, &nodes[i], pages,
- alignment, 0,
- place->fpfn, lpfn,
- sflags, aflags);
+ r = drm_mm_insert_node_in_range(mm, &nodes[i],
+ pages, alignment, 0,
+ place->fpfn, lpfn,
+ mode);
if (unlikely(r))
goto error;
return -ENOSPC;
mutex_lock(&priv->linear_lock);
- ret = drm_mm_insert_node(&priv->linear, node, size, align,
- DRM_MM_SEARCH_DEFAULT);
+ ret = drm_mm_insert_node_generic(&priv->linear, node,
+ size, align, 0, 0);
mutex_unlock(&priv->linear_lock);
if (ret) {
kfree(node);
* locking would be fully redundant.
*/
-static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_mm *mm,
- u64 size,
- u64 alignment,
- unsigned long color,
- u64 start,
- u64 end,
- enum drm_mm_search_flags flags);
-
#ifdef CONFIG_DRM_DEBUG_MM
#include <linux/stackdepot.h>
&drm_mm_interval_tree_augment);
}
-static void drm_mm_insert_helper(struct drm_mm_node *hole_node,
- struct drm_mm_node *node,
- u64 size, u64 alignment,
- unsigned long color,
- u64 range_start, u64 range_end,
- enum drm_mm_allocator_flags flags)
+#define RB_INSERT(root, member, expr) do { \
+ struct rb_node **link = &root.rb_node, *rb = NULL; \
+ u64 x = expr(node); \
+ while (*link) { \
+ rb = *link; \
+ if (x < expr(rb_entry(rb, struct drm_mm_node, member))) \
+ link = &rb->rb_left; \
+ else \
+ link = &rb->rb_right; \
+ } \
+ rb_link_node(&node->member, rb, link); \
+ rb_insert_color(&node->member, &root); \
+} while (0)
+
+#define HOLE_SIZE(NODE) ((NODE)->hole_size)
+#define HOLE_ADDR(NODE) (__drm_mm_hole_node_start(NODE))
+
+static void add_hole(struct drm_mm_node *node)
{
- struct drm_mm *mm = hole_node->mm;
- u64 hole_start = drm_mm_hole_node_start(hole_node);
- u64 hole_end = drm_mm_hole_node_end(hole_node);
- u64 adj_start = hole_start;
- u64 adj_end = hole_end;
+ struct drm_mm *mm = node->mm;
- DRM_MM_BUG_ON(!drm_mm_hole_follows(hole_node) || node->allocated);
+ node->hole_size =
+ __drm_mm_hole_node_end(node) - __drm_mm_hole_node_start(node);
+ DRM_MM_BUG_ON(!drm_mm_hole_follows(node));
- if (mm->color_adjust)
- mm->color_adjust(hole_node, color, &adj_start, &adj_end);
+ RB_INSERT(mm->holes_size, rb_hole_size, HOLE_SIZE);
+ RB_INSERT(mm->holes_addr, rb_hole_addr, HOLE_ADDR);
- adj_start = max(adj_start, range_start);
- adj_end = min(adj_end, range_end);
+ list_add(&node->hole_stack, &mm->hole_stack);
+}
- if (flags & DRM_MM_CREATE_TOP)
- adj_start = adj_end - size;
+static void rm_hole(struct drm_mm_node *node)
+{
+ DRM_MM_BUG_ON(!drm_mm_hole_follows(node));
- if (alignment) {
- u64 rem;
+ list_del(&node->hole_stack);
+ rb_erase(&node->rb_hole_size, &node->mm->holes_size);
+ rb_erase(&node->rb_hole_addr, &node->mm->holes_addr);
+ node->hole_size = 0;
- div64_u64_rem(adj_start, alignment, &rem);
- if (rem) {
- if (flags & DRM_MM_CREATE_TOP)
- adj_start -= rem;
- else
- adj_start += alignment - rem;
+ DRM_MM_BUG_ON(drm_mm_hole_follows(node));
+}
+
+static inline struct drm_mm_node *rb_hole_size_to_node(struct rb_node *rb)
+{
+ return rb_entry_safe(rb, struct drm_mm_node, rb_hole_size);
+}
+
+static inline struct drm_mm_node *rb_hole_addr_to_node(struct rb_node *rb)
+{
+ return rb_entry_safe(rb, struct drm_mm_node, rb_hole_addr);
+}
+
+static inline u64 rb_hole_size(struct rb_node *rb)
+{
+ return rb_entry(rb, struct drm_mm_node, rb_hole_size)->hole_size;
+}
+
+static struct drm_mm_node *best_hole(struct drm_mm *mm, u64 size)
+{
+ struct rb_node *best = NULL;
+ struct rb_node **link = &mm->holes_size.rb_node;
+
+ while (*link) {
+ struct rb_node *rb = *link;
+
+ if (size <= rb_hole_size(rb)) {
+ link = &rb->rb_left;
+ best = rb;
+ } else {
+ link = &rb->rb_right;
}
}
- if (adj_start == hole_start) {
- hole_node->hole_follows = 0;
- list_del(&hole_node->hole_stack);
+ return rb_hole_size_to_node(best);
+}
+
+static struct drm_mm_node *find_hole(struct drm_mm *mm, u64 addr)
+{
+ struct drm_mm_node *node = NULL;
+ struct rb_node **link = &mm->holes_addr.rb_node;
+
+ while (*link) {
+ u64 hole_start;
+
+ node = rb_hole_addr_to_node(*link);
+ hole_start = __drm_mm_hole_node_start(node);
+
+ if (addr < hole_start)
+ link = &node->rb_hole_addr.rb_left;
+ else if (addr > hole_start + node->hole_size)
+ link = &node->rb_hole_addr.rb_right;
+ else
+ break;
}
- node->start = adj_start;
- node->size = size;
- node->mm = mm;
- node->color = color;
- node->allocated = 1;
+ return node;
+}
- list_add(&node->node_list, &hole_node->node_list);
+static struct drm_mm_node *
+first_hole(struct drm_mm *mm,
+ u64 start, u64 end, u64 size,
+ enum drm_mm_insert_mode mode)
+{
+ if (RB_EMPTY_ROOT(&mm->holes_size))
+ return NULL;
- drm_mm_interval_tree_add_node(hole_node, node);
+ switch (mode) {
+ default:
+ case DRM_MM_INSERT_BEST:
+ return best_hole(mm, size);
- DRM_MM_BUG_ON(node->start < range_start);
- DRM_MM_BUG_ON(node->start < adj_start);
- DRM_MM_BUG_ON(node->start + node->size > adj_end);
- DRM_MM_BUG_ON(node->start + node->size > range_end);
+ case DRM_MM_INSERT_LOW:
+ return find_hole(mm, start);
- node->hole_follows = 0;
- if (__drm_mm_hole_node_start(node) < hole_end) {
- list_add(&node->hole_stack, &mm->hole_stack);
- node->hole_follows = 1;
+ case DRM_MM_INSERT_HIGH:
+ return find_hole(mm, end);
+
+ case DRM_MM_INSERT_EVICT:
+ return list_first_entry_or_null(&mm->hole_stack,
+ struct drm_mm_node,
+ hole_stack);
}
+}
- save_stack(node);
+static struct drm_mm_node *
+next_hole(struct drm_mm *mm,
+ struct drm_mm_node *node,
+ enum drm_mm_insert_mode mode)
+{
+ switch (mode) {
+ default:
+ case DRM_MM_INSERT_BEST:
+ return rb_hole_size_to_node(rb_next(&node->rb_hole_size));
+
+ case DRM_MM_INSERT_LOW:
+ return rb_hole_addr_to_node(rb_next(&node->rb_hole_addr));
+
+ case DRM_MM_INSERT_HIGH:
+ return rb_hole_addr_to_node(rb_prev(&node->rb_hole_addr));
+
+ case DRM_MM_INSERT_EVICT:
+ node = list_next_entry(node, hole_stack);
+ return &node->hole_stack == &mm->hole_stack ? NULL : node;
+ }
}
/**
return -ENOSPC;
/* Find the relevant hole to add our node to */
- hole = drm_mm_interval_tree_iter_first(&mm->interval_tree,
- node->start, ~(u64)0);
- if (hole) {
- if (hole->start < end)
- return -ENOSPC;
- } else {
- hole = list_entry(drm_mm_nodes(mm), typeof(*hole), node_list);
- }
-
- hole = list_last_entry(&hole->node_list, typeof(*hole), node_list);
- if (!drm_mm_hole_follows(hole))
+ hole = find_hole(mm, node->start);
+ if (!hole)
return -ENOSPC;
adj_start = hole_start = __drm_mm_hole_node_start(hole);
- adj_end = hole_end = __drm_mm_hole_node_end(hole);
+ adj_end = hole_end = hole_start + hole->hole_size;
if (mm->color_adjust)
mm->color_adjust(hole, node->color, &adj_start, &adj_end);
return -ENOSPC;
node->mm = mm;
- node->allocated = 1;
list_add(&node->node_list, &hole->node_list);
-
drm_mm_interval_tree_add_node(hole, node);
+ node->allocated = true;
+ node->hole_size = 0;
- if (node->start == hole_start) {
- hole->hole_follows = 0;
- list_del(&hole->hole_stack);
- }
-
- node->hole_follows = 0;
- if (end != hole_end) {
- list_add(&node->hole_stack, &mm->hole_stack);
- node->hole_follows = 1;
- }
+ rm_hole(hole);
+ if (node->start > hole_start)
+ add_hole(hole);
+ if (end < hole_end)
+ add_hole(node);
save_stack(node);
-
return 0;
}
EXPORT_SYMBOL(drm_mm_reserve_node);
/**
- * drm_mm_insert_node_in_range_generic - ranged search for space and insert @node
+ * drm_mm_insert_node_in_range - ranged search for space and insert @node
* @mm: drm_mm to allocate from
* @node: preallocate node to insert
* @size: size of the allocation
* @alignment: alignment of the allocation
* @color: opaque tag value to use for this node
- * @start: start of the allowed range for this node
- * @end: end of the allowed range for this node
- * @sflags: flags to fine-tune the allocation search
- * @aflags: flags to fine-tune the allocation behavior
+ * @range_start: start of the allowed range for this node
+ * @range_end: end of the allowed range for this node
+ * @mode: fine-tune the allocation search and placement
*
* The preallocated @node must be cleared to 0.
*
* Returns:
* 0 on success, -ENOSPC if there's no suitable hole.
*/
-int drm_mm_insert_node_in_range_generic(struct drm_mm *mm, struct drm_mm_node *node,
- u64 size, u64 alignment,
- unsigned long color,
- u64 start, u64 end,
- enum drm_mm_search_flags sflags,
- enum drm_mm_allocator_flags aflags)
+int drm_mm_insert_node_in_range(struct drm_mm * const mm,
+ struct drm_mm_node * const node,
+ u64 size, u64 alignment,
+ unsigned long color,
+ u64 range_start, u64 range_end,
+ enum drm_mm_insert_mode mode)
{
- struct drm_mm_node *hole_node;
+ struct drm_mm_node *hole;
+ u64 remainder_mask;
- if (WARN_ON(size == 0))
- return -EINVAL;
+ DRM_MM_BUG_ON(range_start >= range_end);
- hole_node = drm_mm_search_free_in_range_generic(mm,
- size, alignment, color,
- start, end, sflags);
- if (!hole_node)
+ if (unlikely(size == 0 || range_end - range_start < size))
return -ENOSPC;
- drm_mm_insert_helper(hole_node, node,
- size, alignment, color,
- start, end, aflags);
- return 0;
+ if (alignment <= 1)
+ alignment = 0;
+
+ remainder_mask = is_power_of_2(alignment) ? alignment - 1 : 0;
+ for (hole = first_hole(mm, range_start, range_end, size, mode); hole;
+ hole = next_hole(mm, hole, mode)) {
+ u64 hole_start = __drm_mm_hole_node_start(hole);
+ u64 hole_end = hole_start + hole->hole_size;
+ u64 adj_start, adj_end;
+ u64 col_start, col_end;
+
+ if (mode == DRM_MM_INSERT_LOW && hole_start >= range_end)
+ break;
+
+ if (mode == DRM_MM_INSERT_HIGH && hole_end <= range_start)
+ break;
+
+ col_start = hole_start;
+ col_end = hole_end;
+ if (mm->color_adjust)
+ mm->color_adjust(hole, color, &col_start, &col_end);
+
+ adj_start = max(col_start, range_start);
+ adj_end = min(col_end, range_end);
+
+ if (adj_end <= adj_start || adj_end - adj_start < size)
+ continue;
+
+ if (mode == DRM_MM_INSERT_HIGH)
+ adj_start = adj_end - size;
+
+ if (alignment) {
+ u64 rem;
+
+ if (likely(remainder_mask))
+ rem = adj_start & remainder_mask;
+ else
+ div64_u64_rem(adj_start, alignment, &rem);
+ if (rem) {
+ adj_start -= rem;
+ if (mode != DRM_MM_INSERT_HIGH)
+ adj_start += alignment;
+
+ if (adj_start < max(col_start, range_start) ||
+ min(col_end, range_end) - adj_start < size)
+ continue;
+
+ if (adj_end <= adj_start ||
+ adj_end - adj_start < size)
+ continue;
+ }
+ }
+
+ node->mm = mm;
+ node->size = size;
+ node->start = adj_start;
+ node->color = color;
+ node->hole_size = 0;
+
+ list_add(&node->node_list, &hole->node_list);
+ drm_mm_interval_tree_add_node(hole, node);
+ node->allocated = true;
+
+ rm_hole(hole);
+ if (adj_start > hole_start)
+ add_hole(hole);
+ if (adj_start + size < hole_end)
+ add_hole(node);
+
+ save_stack(node);
+ return 0;
+ }
+
+ return -ENOSPC;
}
-EXPORT_SYMBOL(drm_mm_insert_node_in_range_generic);
+EXPORT_SYMBOL(drm_mm_insert_node_in_range);
/**
* drm_mm_remove_node - Remove a memory node from the allocator.
DRM_MM_BUG_ON(!node->allocated);
DRM_MM_BUG_ON(node->scanned_block);
- prev_node =
- list_entry(node->node_list.prev, struct drm_mm_node, node_list);
-
- if (drm_mm_hole_follows(node)) {
- DRM_MM_BUG_ON(__drm_mm_hole_node_start(node) ==
- __drm_mm_hole_node_end(node));
- list_del(&node->hole_stack);
- } else {
- DRM_MM_BUG_ON(__drm_mm_hole_node_start(node) !=
- __drm_mm_hole_node_end(node));
- }
+ prev_node = list_prev_entry(node, node_list);
- if (!drm_mm_hole_follows(prev_node)) {
- prev_node->hole_follows = 1;
- list_add(&prev_node->hole_stack, &mm->hole_stack);
- } else
- list_move(&prev_node->hole_stack, &mm->hole_stack);
+ if (drm_mm_hole_follows(node))
+ rm_hole(node);
drm_mm_interval_tree_remove(node, &mm->interval_tree);
list_del(&node->node_list);
- node->allocated = 0;
-}
-EXPORT_SYMBOL(drm_mm_remove_node);
-
-static int check_free_hole(u64 start, u64 end, u64 size, u64 alignment)
-{
- if (end - start < size)
- return 0;
-
- if (alignment) {
- u64 rem;
-
- div64_u64_rem(start, alignment, &rem);
- if (rem)
- start += alignment - rem;
- }
+ node->allocated = false;
- return end >= start + size;
-}
-
-static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_mm *mm,
- u64 size,
- u64 alignment,
- unsigned long color,
- u64 start,
- u64 end,
- enum drm_mm_search_flags flags)
-{
- struct drm_mm_node *entry;
- struct drm_mm_node *best;
- u64 adj_start;
- u64 adj_end;
- u64 best_size;
-
- DRM_MM_BUG_ON(mm->scan_active);
-
- best = NULL;
- best_size = ~0UL;
-
- __drm_mm_for_each_hole(entry, mm, adj_start, adj_end,
- flags & DRM_MM_SEARCH_BELOW) {
- u64 hole_size = adj_end - adj_start;
-
- if (mm->color_adjust) {
- mm->color_adjust(entry, color, &adj_start, &adj_end);
- if (adj_end <= adj_start)
- continue;
- }
-
- adj_start = max(adj_start, start);
- adj_end = min(adj_end, end);
-
- if (!check_free_hole(adj_start, adj_end, size, alignment))
- continue;
-
- if (!(flags & DRM_MM_SEARCH_BEST))
- return entry;
-
- if (hole_size < best_size) {
- best = entry;
- best_size = hole_size;
- }
- }
-
- return best;
+ if (drm_mm_hole_follows(prev_node))
+ rm_hole(prev_node);
+ add_hole(prev_node);
}
+EXPORT_SYMBOL(drm_mm_remove_node);
/**
* drm_mm_replace_node - move an allocation from @old to @new
{
DRM_MM_BUG_ON(!old->allocated);
+ *new = *old;
+
list_replace(&old->node_list, &new->node_list);
- list_replace(&old->hole_stack, &new->hole_stack);
rb_replace_node(&old->rb, &new->rb, &old->mm->interval_tree);
- new->hole_follows = old->hole_follows;
- new->mm = old->mm;
- new->start = old->start;
- new->size = old->size;
- new->color = old->color;
- new->__subtree_last = old->__subtree_last;
-
- old->allocated = 0;
- new->allocated = 1;
+
+ if (drm_mm_hole_follows(old)) {
+ list_replace(&old->hole_stack, &new->hole_stack);
+ rb_replace_node(&old->rb_hole_size,
+ &new->rb_hole_size,
+ &old->mm->holes_size);
+ rb_replace_node(&old->rb_hole_addr,
+ &new->rb_hole_addr,
+ &old->mm->holes_addr);
+ }
+
+ old->allocated = false;
+ new->allocated = true;
}
EXPORT_SYMBOL(drm_mm_replace_node);
* @color: opaque tag value to use for the allocation
* @start: start of the allowed range for the allocation
* @end: end of the allowed range for the allocation
- * @flags: flags to specify how the allocation will be performed afterwards
+ * @mode: fine-tune the allocation search and placement
*
* This simply sets up the scanning routines with the parameters for the desired
* hole.
unsigned long color,
u64 start,
u64 end,
- unsigned int flags)
+ enum drm_mm_insert_mode mode)
{
DRM_MM_BUG_ON(start >= end);
DRM_MM_BUG_ON(!size || size > end - start);
scan->alignment = alignment;
scan->remainder_mask = is_power_of_2(alignment) ? alignment - 1 : 0;
scan->size = size;
- scan->flags = flags;
+ scan->mode = mode;
DRM_MM_BUG_ON(end <= start);
scan->range_start = start;
if (adj_end <= adj_start || adj_end - adj_start < scan->size)
return false;
- if (scan->flags == DRM_MM_CREATE_TOP)
+ if (scan->mode == DRM_MM_INSERT_HIGH)
adj_start = adj_end - scan->size;
if (scan->alignment) {
div64_u64_rem(adj_start, scan->alignment, &rem);
if (rem) {
adj_start -= rem;
- if (scan->flags != DRM_MM_CREATE_TOP)
+ if (scan->mode != DRM_MM_INSERT_HIGH)
adj_start += scan->alignment;
if (adj_start < max(col_start, scan->range_start) ||
min(col_end, scan->range_end) - adj_start < scan->size)
hole = list_first_entry(&mm->hole_stack, typeof(*hole), hole_stack);
hole_start = __drm_mm_hole_node_start(hole);
- hole_end = __drm_mm_hole_node_end(hole);
+ hole_end = hole_start + hole->hole_size;
DRM_MM_BUG_ON(hole_start > scan->hit_start);
DRM_MM_BUG_ON(hole_end < scan->hit_end);
{
DRM_MM_BUG_ON(start + size <= start);
+ mm->color_adjust = NULL;
+
INIT_LIST_HEAD(&mm->hole_stack);
- mm->scan_active = 0;
+ mm->interval_tree = RB_ROOT;
+ mm->holes_size = RB_ROOT;
+ mm->holes_addr = RB_ROOT;
/* Clever trick to avoid a special case in the free hole tracking. */
INIT_LIST_HEAD(&mm->head_node.node_list);
- mm->head_node.allocated = 0;
- mm->head_node.hole_follows = 1;
+ mm->head_node.allocated = false;
mm->head_node.mm = mm;
mm->head_node.start = start + size;
- mm->head_node.size = start - mm->head_node.start;
- list_add_tail(&mm->head_node.hole_stack, &mm->hole_stack);
+ mm->head_node.size = -size;
+ add_hole(&mm->head_node);
- mm->interval_tree = RB_ROOT;
-
- mm->color_adjust = NULL;
+ mm->scan_active = 0;
}
EXPORT_SYMBOL(drm_mm_init);
static u64 drm_mm_dump_hole(struct drm_printer *p, const struct drm_mm_node *entry)
{
- u64 hole_start, hole_end, hole_size;
-
- if (entry->hole_follows) {
- hole_start = drm_mm_hole_node_start(entry);
- hole_end = drm_mm_hole_node_end(entry);
- hole_size = hole_end - hole_start;
- drm_printf(p, "%#018llx-%#018llx: %llu: free\n", hole_start,
- hole_end, hole_size);
- return hole_size;
+ u64 start, size;
+
+ size = entry->hole_size;
+ if (size) {
+ start = drm_mm_hole_node_start(entry);
+ drm_printf(p, "%#018llx-%#018llx: %llu: free\n",
+ start, start + size, size);
}
- return 0;
+ return size;
}
-
/**
* drm_mm_print - print allocator state
* @mm: drm_mm allocator to print
goto out_unlock;
}
- ret = drm_mm_insert_node(&mgr->vm_addr_space_mm, &node->vm_node,
- pages, 0, DRM_MM_SEARCH_DEFAULT);
+ ret = drm_mm_insert_node(&mgr->vm_addr_space_mm, &node->vm_node, pages);
if (ret)
goto out_unlock;
struct drm_mm_node *node, size_t size)
{
struct etnaviv_vram_mapping *free = NULL;
+ enum drm_mm_insert_mode mode = DRM_MM_INSERT_LOW;
int ret;
lockdep_assert_held(&mmu->lock);
bool found;
ret = drm_mm_insert_node_in_range(&mmu->mm, node,
- size, 0, mmu->last_iova, ~0UL,
- DRM_MM_SEARCH_DEFAULT);
-
+ size, 0, 0,
+ mmu->last_iova, U64_MAX,
+ mode);
if (ret != -ENOSPC)
break;
}
/* Try to retire some entries */
- drm_mm_scan_init(&scan, &mmu->mm, size, 0, 0, 0);
+ drm_mm_scan_init(&scan, &mmu->mm, size, 0, 0, mode);
found = 0;
INIT_LIST_HEAD(&list);
list_del_init(&m->scan_node);
}
+ mode = DRM_MM_INSERT_EVICT;
+
/*
* We removed enough mappings so that the new allocation will
* succeed, retry the allocation one more time.
struct drm_mm_node *node, u32 size)
{
memset(node, 0, sizeof(*node));
- return drm_mm_insert_node_in_range_generic(&ggtt->base.mm, node,
- size, 0,
- I915_COLOR_UNEVICTABLE,
- 0, ggtt->mappable_end,
- DRM_MM_SEARCH_DEFAULT,
- DRM_MM_CREATE_DEFAULT);
+ return drm_mm_insert_node_in_range(&ggtt->base.mm, node,
+ size, 0, I915_COLOR_UNEVICTABLE,
+ 0, ggtt->mappable_end,
+ DRM_MM_INSERT_LOW);
}
static void
}, **phase;
struct i915_vma *vma, *next;
struct drm_mm_node *node;
+ enum drm_mm_insert_mode mode;
int ret;
lockdep_assert_held(&vm->i915->drm.struct_mutex);
* On each list, the oldest objects lie at the HEAD with the freshest
* object on the TAIL.
*/
+ mode = DRM_MM_INSERT_BEST;
+ if (flags & PIN_HIGH)
+ mode = DRM_MM_INSERT_HIGH;
+ if (flags & PIN_MAPPABLE)
+ mode = DRM_MM_INSERT_LOW;
drm_mm_scan_init_with_range(&scan, &vm->mm,
min_size, alignment, cache_level,
- start, end,
- flags & PIN_HIGH ? DRM_MM_CREATE_TOP : 0);
+ start, end, mode);
/* Retire before we search the active list. Although we have
* reasonable accuracy in our retirement lists, we may have
PIN_MAPPABLE | PIN_NONBLOCK);
if (IS_ERR(vma)) {
memset(&cache->node, 0, sizeof(cache->node));
- ret = drm_mm_insert_node_in_range_generic
+ ret = drm_mm_insert_node_in_range
(&ggtt->base.mm, &cache->node,
PAGE_SIZE, 0, I915_COLOR_UNEVICTABLE,
0, ggtt->mappable_end,
- DRM_MM_SEARCH_DEFAULT,
- DRM_MM_CREATE_DEFAULT);
+ DRM_MM_INSERT_LOW);
if (ret) /* no inactive aperture space, use cpu reloc */
return NULL;
} else {
return ret;
/* Reserve a mappable slot for our lockless error capture */
- ret = drm_mm_insert_node_in_range_generic(&ggtt->base.mm,
- &ggtt->error_capture,
- PAGE_SIZE, 0,
- I915_COLOR_UNEVICTABLE,
- 0, ggtt->mappable_end,
- 0, 0);
+ ret = drm_mm_insert_node_in_range(&ggtt->base.mm, &ggtt->error_capture,
+ PAGE_SIZE, 0, I915_COLOR_UNEVICTABLE,
+ 0, ggtt->mappable_end,
+ DRM_MM_INSERT_LOW);
if (ret)
return ret;
u64 size, u64 alignment, unsigned long color,
u64 start, u64 end, unsigned int flags)
{
- u32 search_flag, alloc_flag;
+ enum drm_mm_insert_mode mode;
u64 offset;
int err;
if (unlikely(round_up(start, alignment) > round_down(end - size, alignment)))
return -ENOSPC;
- if (flags & PIN_HIGH) {
- search_flag = DRM_MM_SEARCH_BELOW;
- alloc_flag = DRM_MM_CREATE_TOP;
- } else {
- search_flag = DRM_MM_SEARCH_DEFAULT;
- alloc_flag = DRM_MM_CREATE_DEFAULT;
- }
+ mode = DRM_MM_INSERT_BEST;
+ if (flags & PIN_HIGH)
+ mode = DRM_MM_INSERT_HIGH;
+ if (flags & PIN_MAPPABLE)
+ mode = DRM_MM_INSERT_LOW;
/* We only allocate in PAGE_SIZE/GTT_PAGE_SIZE (4096) chunks,
* so we know that we always have a minimum alignment of 4096.
if (alignment <= I915_GTT_MIN_ALIGNMENT)
alignment = 0;
- err = drm_mm_insert_node_in_range_generic(&vm->mm, node,
- size, alignment, color,
- start, end,
- search_flag, alloc_flag);
+ err = drm_mm_insert_node_in_range(&vm->mm, node,
+ size, alignment, color,
+ start, end, mode);
if (err != -ENOSPC)
return err;
if (err)
return err;
- search_flag = DRM_MM_SEARCH_DEFAULT;
- return drm_mm_insert_node_in_range_generic(&vm->mm, node,
- size, alignment, color,
- start, end,
- search_flag, alloc_flag);
+ return drm_mm_insert_node_in_range(&vm->mm, node,
+ size, alignment, color,
+ start, end, DRM_MM_INSERT_EVICT);
}
return -ENODEV;
mutex_lock(&dev_priv->mm.stolen_lock);
- ret = drm_mm_insert_node_in_range(&dev_priv->mm.stolen, node, size,
- alignment, start, end,
- DRM_MM_SEARCH_DEFAULT);
+ ret = drm_mm_insert_node_in_range(&dev_priv->mm.stolen, node,
+ size, alignment, 0,
+ start, end, DRM_MM_INSERT_BEST);
mutex_unlock(&dev_priv->mm.stolen_lock);
return ret;
if (!p)
return ERR_PTR(-ENOMEM);
- ret = drm_mm_insert_node(&priv->vram.mm, msm_obj->vram_node,
- npages, 0, DRM_MM_SEARCH_DEFAULT);
+ ret = drm_mm_insert_node(&priv->vram.mm, msm_obj->vram_node, npages);
if (ret) {
drm_free_large(p);
return ERR_PTR(ret);
if (WARN_ON(drm_mm_node_allocated(&vma->node)))
return 0;
- ret = drm_mm_insert_node(&aspace->mm, &vma->node, npages,
- 0, DRM_MM_SEARCH_DEFAULT);
+ ret = drm_mm_insert_node(&aspace->mm, &vma->node, npages);
if (ret)
return ret;
static unsigned int max_prime = 128;
enum {
- DEFAULT,
- TOPDOWN,
BEST,
+ BOTTOMUP,
+ TOPDOWN,
+ EVICT,
};
static const struct insert_mode {
const char *name;
- unsigned int search_flags;
- unsigned int create_flags;
+ enum drm_mm_insert_mode mode;
} insert_modes[] = {
- [DEFAULT] = { "default", DRM_MM_SEARCH_DEFAULT, DRM_MM_CREATE_DEFAULT },
- [TOPDOWN] = { "top-down", DRM_MM_SEARCH_BELOW, DRM_MM_CREATE_TOP },
- [BEST] = { "best", DRM_MM_SEARCH_BEST, DRM_MM_CREATE_DEFAULT },
+ [BEST] = { "best", DRM_MM_INSERT_BEST },
+ [BOTTOMUP] = { "bottom-up", DRM_MM_INSERT_LOW },
+ [TOPDOWN] = { "top-down", DRM_MM_INSERT_HIGH },
+ [EVICT] = { "evict", DRM_MM_INSERT_EVICT },
{}
}, evict_modes[] = {
- { "default", DRM_MM_SEARCH_DEFAULT, DRM_MM_CREATE_DEFAULT },
- { "top-down", DRM_MM_SEARCH_BELOW, DRM_MM_CREATE_TOP },
+ { "bottom-up", DRM_MM_INSERT_LOW },
+ { "top-down", DRM_MM_INSERT_HIGH },
{}
};
err = drm_mm_insert_node_generic(mm, node,
size, alignment, color,
- mode->search_flags,
- mode->create_flags);
+ mode->mode);
if (err) {
pr_err("insert (size=%llu, alignment=%llu, color=%lu, mode=%s) failed with err=%d\n",
size, alignment, color, mode->name, err);
struct drm_mm_node tmp = {};
int err;
- err = drm_mm_insert_node(mm, &tmp, size, 0, DRM_MM_SEARCH_DEFAULT);
+ err = drm_mm_insert_node(mm, &tmp, size);
if (likely(err == -ENOSPC))
return true;
{
int err;
- err = drm_mm_insert_node_in_range_generic(mm, node,
- size, alignment, color,
- range_start, range_end,
- mode->search_flags,
- mode->create_flags);
+ err = drm_mm_insert_node_in_range(mm, node,
+ size, alignment, color,
+ range_start, range_end,
+ mode->mode);
if (err) {
pr_err("insert (size=%llu, alignment=%llu, color=%lu, mode=%s) nto range [%llx, %llx] failed with err=%d\n",
size, alignment, color, mode->name,
struct drm_mm_node tmp = {};
int err;
- err = drm_mm_insert_node_in_range_generic(mm, &tmp,
- size, 0, 0,
- range_start, range_end,
- DRM_MM_SEARCH_DEFAULT,
- DRM_MM_CREATE_DEFAULT);
+ err = drm_mm_insert_node_in_range(mm, &tmp,
+ size, 0, 0,
+ range_start, range_end,
+ 0);
if (likely(err == -ENOSPC))
return true;
drm_mm_scan_init_with_range(&scan, mm,
size, alignment, 0,
range_start, range_end,
- mode->create_flags);
+ mode->mode);
if (!evict_nodes(&scan,
nodes, order, count, false,
&evict_list))
memset(&tmp, 0, sizeof(tmp));
err = drm_mm_insert_node_generic(mm, &tmp, size, alignment, 0,
- mode->search_flags,
- mode->create_flags);
+ DRM_MM_INSERT_EVICT);
if (err) {
pr_err("Failed to insert into eviction hole: size=%d, align=%d\n",
size, alignment);
ret = -EINVAL;
drm_mm_init(&mm, 0, size);
for (n = 0; n < size; n++) {
- err = drm_mm_insert_node(&mm, &nodes[n].node, 1, 0,
- DRM_MM_SEARCH_DEFAULT);
+ err = drm_mm_insert_node(&mm, &nodes[n].node, 1);
if (err) {
pr_err("insert failed, step %d\n", n);
ret = err;
ret = -EINVAL;
drm_mm_init(&mm, 0, size);
for (n = 0; n < size; n++) {
- err = drm_mm_insert_node(&mm, &nodes[n].node, 1, 0,
- DRM_MM_SEARCH_DEFAULT);
+ err = drm_mm_insert_node(&mm, &nodes[n].node, 1);
if (err) {
pr_err("insert failed, step %d\n", n);
ret = err;
drm_mm_scan_init_with_range(&scan, mm,
size, alignment, color,
range_start, range_end,
- mode->create_flags);
+ mode->mode);
if (!evict_nodes(&scan,
nodes, order, count, true,
&evict_list))
memset(&tmp, 0, sizeof(tmp));
err = drm_mm_insert_node_generic(mm, &tmp, size, alignment, color,
- mode->search_flags,
- mode->create_flags);
+ DRM_MM_INSERT_EVICT);
if (err) {
pr_err("Failed to insert into eviction hole: size=%d, align=%d, color=%lu, err=%d\n",
size, alignment, color, err);
if (pool == AGP_TYPE) {
retval = drm_mm_insert_node(&dev_priv->agp_mm,
&item->mm_node,
- mem->size, 0,
- DRM_MM_SEARCH_DEFAULT);
+ mem->size);
offset = item->mm_node.start;
} else {
#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
#else
retval = drm_mm_insert_node(&dev_priv->vram_mm,
&item->mm_node,
- mem->size, 0,
- DRM_MM_SEARCH_DEFAULT);
+ mem->size);
offset = item->mm_node.start;
#endif
}
if (!bo->mm)
return -ENOMEM;
- err = drm_mm_insert_node_generic(&tegra->mm, bo->mm, bo->gem.size,
- PAGE_SIZE, 0, 0, 0);
+ err = drm_mm_insert_node_generic(&tegra->mm,
+ bo->mm, bo->gem.size, PAGE_SIZE, 0, 0);
if (err < 0) {
dev_err(tegra->drm->dev, "out of I/O virtual memory: %zd\n",
err);
{
struct ttm_range_manager *rman = (struct ttm_range_manager *) man->priv;
struct drm_mm *mm = &rman->mm;
- struct drm_mm_node *node = NULL;
- enum drm_mm_search_flags sflags = DRM_MM_SEARCH_BEST;
- enum drm_mm_allocator_flags aflags = DRM_MM_CREATE_DEFAULT;
+ struct drm_mm_node *node;
+ enum drm_mm_insert_mode mode;
unsigned long lpfn;
int ret;
if (!node)
return -ENOMEM;
- if (place->flags & TTM_PL_FLAG_TOPDOWN) {
- sflags = DRM_MM_SEARCH_BELOW;
- aflags = DRM_MM_CREATE_TOP;
- }
+ mode = DRM_MM_INSERT_BEST;
+ if (place->flags & TTM_PL_FLAG_TOPDOWN)
+ mode = DRM_MM_INSERT_HIGH;
spin_lock(&rman->lock);
- ret = drm_mm_insert_node_in_range_generic(mm, node, mem->num_pages,
+ ret = drm_mm_insert_node_in_range(mm, node,
+ mem->num_pages,
mem->page_alignment, 0,
- place->fpfn, lpfn,
- sflags, aflags);
+ place->fpfn, lpfn, mode);
spin_unlock(&rman->lock);
if (unlikely(ret)) {
spin_lock_irqsave(&vc4->hvs->mm_lock, flags);
ret = drm_mm_insert_node(&vc4->hvs->dlist_mm, &vc4_state->mm,
- dlist_count, 1, 0);
+ dlist_count);
spin_unlock_irqrestore(&vc4->hvs->mm_lock, flags);
if (ret)
return ret;
int ret, i;
u32 __iomem *dst_kernel;
- ret = drm_mm_insert_node(&hvs->dlist_mm, space, VC4_KERNEL_DWORDS, 1,
- 0);
+ ret = drm_mm_insert_node(&hvs->dlist_mm, space, VC4_KERNEL_DWORDS);
if (ret) {
DRM_ERROR("Failed to allocate space for filter kernel: %d\n",
ret);
if (lbm_size) {
if (!vc4_state->lbm.allocated) {
spin_lock_irqsave(&vc4->hvs->mm_lock, irqflags);
- ret = drm_mm_insert_node(&vc4->hvs->lbm_mm,
- &vc4_state->lbm,
- lbm_size, 32, 0);
+ ret = drm_mm_insert_node_generic(&vc4->hvs->lbm_mm,
+ &vc4_state->lbm,
+ lbm_size, 32, 0, 0);
spin_unlock_irqrestore(&vc4->hvs->mm_lock, irqflags);
} else {
WARN_ON_ONCE(lbm_size != vc4_state->lbm.size);
if (mem->type == VIA_MEM_AGP)
retval = drm_mm_insert_node(&dev_priv->agp_mm,
&item->mm_node,
- tmpSize, 0, DRM_MM_SEARCH_DEFAULT);
+ tmpSize);
else
retval = drm_mm_insert_node(&dev_priv->vram_mm,
&item->mm_node,
- tmpSize, 0, DRM_MM_SEARCH_DEFAULT);
+ tmpSize);
if (retval)
goto fail_alloc;
memset(info->node, 0, sizeof(*info->node));
spin_lock_bh(&man->lock);
- ret = drm_mm_insert_node_generic(&man->mm, info->node, info->page_size,
- 0, 0,
- DRM_MM_SEARCH_DEFAULT,
- DRM_MM_CREATE_DEFAULT);
+ ret = drm_mm_insert_node(&man->mm, info->node, info->page_size);
if (ret) {
vmw_cmdbuf_man_process(man);
- ret = drm_mm_insert_node_generic(&man->mm, info->node,
- info->page_size, 0, 0,
- DRM_MM_SEARCH_DEFAULT,
- DRM_MM_CREATE_DEFAULT);
+ ret = drm_mm_insert_node(&man->mm, info->node, info->page_size);
}
spin_unlock_bh(&man->lock);
#define DRM_MM_BUG_ON(expr) BUILD_BUG_ON_INVALID(expr)
#endif
-enum drm_mm_search_flags {
- DRM_MM_SEARCH_DEFAULT = 0,
- DRM_MM_SEARCH_BEST = 1 << 0,
- DRM_MM_SEARCH_BELOW = 1 << 1,
-};
+/**
+ * enum drm_mm_insert_mode - control search and allocation behaviour
+ *
+ * The &struct drm_mm range manager supports finding a suitable modes using
+ * a number of search trees. These trees are oranised by size, by address and
+ * in most recent eviction order. This allows the user to find either the
+ * smallest hole to reuse, the lowest or highest address to reuse, or simply
+ * reuse the most recent eviction that fits. When allocating the &drm_mm_node
+ * from within the hole, the &drm_mm_insert_mode also dictate whether to
+ * allocate the lowest matching address or the highest.
+ */
+enum drm_mm_insert_mode {
+ /**
+ * @DRM_MM_INSERT_BEST:
+ *
+ * Search for the smallest hole (within the search range) that fits
+ * the desired node.
+ *
+ * Allocates the node from the bottom of the found hole.
+ */
+ DRM_MM_INSERT_BEST = 0,
-enum drm_mm_allocator_flags {
- DRM_MM_CREATE_DEFAULT = 0,
- DRM_MM_CREATE_TOP = 1 << 0,
-};
+ /**
+ * @DRM_MM_INSERT_LOW:
+ *
+ * Search for the lowest hole (address closest to 0, within the search
+ * range) that fits the desired node.
+ *
+ * Allocates the node from the bottom of the found hole.
+ */
+ DRM_MM_INSERT_LOW,
-#define DRM_MM_BOTTOMUP DRM_MM_SEARCH_DEFAULT, DRM_MM_CREATE_DEFAULT
-#define DRM_MM_TOPDOWN DRM_MM_SEARCH_BELOW, DRM_MM_CREATE_TOP
+ /**
+ * @DRM_MM_INSERT_HIGH:
+ *
+ * Search for the highest hole (address closest to U64_MAX, within the
+ * search range) that fits the desired node.
+ *
+ * Allocates the node from the *top* of the found hole. The specified
+ * alignment for the node is applied to the base of the node
+ * (&drm_mm_node.start).
+ */
+ DRM_MM_INSERT_HIGH,
+
+ /**
+ * @DRM_MM_INSERT_EVICT:
+ *
+ * Search for the most recently evicted hole (within the search range)
+ * that fits the desired node. This is appropriate for use immediately
+ * after performing an eviction scan (see drm_mm_scan_init()) and
+ * removing the selected nodes to form a hole.
+ *
+ * Allocates the node from the bottom of the found hole.
+ */
+ DRM_MM_INSERT_EVICT,
+};
/**
* struct drm_mm_node - allocated block in the DRM allocator
/** @size: Size of the allocated block. */
u64 size;
/* private: */
+ struct drm_mm *mm;
struct list_head node_list;
struct list_head hole_stack;
struct rb_node rb;
- unsigned hole_follows : 1;
- unsigned allocated : 1;
- bool scanned_block : 1;
+ struct rb_node rb_hole_size;
+ struct rb_node rb_hole_addr;
u64 __subtree_last;
- struct drm_mm *mm;
+ u64 hole_size;
+ bool allocated : 1;
+ bool scanned_block : 1;
#ifdef CONFIG_DRM_DEBUG_MM
depot_stack_handle_t stack;
#endif
struct drm_mm_node head_node;
/* Keep an interval_tree for fast lookup of drm_mm_nodes by address. */
struct rb_root interval_tree;
+ struct rb_root holes_size;
+ struct rb_root holes_addr;
unsigned long scan_active;
};
u64 hit_end;
unsigned long color;
- unsigned int flags;
+ enum drm_mm_insert_mode mode;
};
/**
*/
static inline bool drm_mm_hole_follows(const struct drm_mm_node *node)
{
- return node->hole_follows;
+ return node->hole_size;
}
static inline u64 __drm_mm_hole_node_start(const struct drm_mm_node *hole_node)
#define drm_mm_for_each_node_safe(entry, next, mm) \
list_for_each_entry_safe(entry, next, drm_mm_nodes(mm), node_list)
-#define __drm_mm_for_each_hole(entry, mm, hole_start, hole_end, backwards) \
- for (entry = list_entry((backwards) ? (mm)->hole_stack.prev : (mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
- &entry->hole_stack != &(mm)->hole_stack ? \
- hole_start = drm_mm_hole_node_start(entry), \
- hole_end = drm_mm_hole_node_end(entry), \
- 1 : 0; \
- entry = list_entry((backwards) ? entry->hole_stack.prev : entry->hole_stack.next, struct drm_mm_node, hole_stack))
-
/**
* drm_mm_for_each_hole - iterator to walk over all holes
- * @entry: &drm_mm_node used internally to track progress
+ * @pos: &drm_mm_node used internally to track progress
* @mm: &drm_mm allocator to walk
* @hole_start: ulong variable to assign the hole start to on each iteration
* @hole_end: ulong variable to assign the hole end to on each iteration
* Implementation Note:
* We need to inline list_for_each_entry in order to be able to set hole_start
* and hole_end on each iteration while keeping the macro sane.
- *
- * The __drm_mm_for_each_hole version is similar, but with added support for
- * going backwards.
*/
-#define drm_mm_for_each_hole(entry, mm, hole_start, hole_end) \
- __drm_mm_for_each_hole(entry, mm, hole_start, hole_end, 0)
+#define drm_mm_for_each_hole(pos, mm, hole_start, hole_end) \
+ for (pos = list_first_entry(&(mm)->hole_stack, \
+ typeof(*pos), hole_stack); \
+ &pos->hole_stack != &(mm)->hole_stack ? \
+ hole_start = drm_mm_hole_node_start(pos), \
+ hole_end = hole_start + pos->hole_size, \
+ 1 : 0; \
+ pos = list_next_entry(pos, hole_stack))
/*
* Basic range manager support (drm_mm.c)
*/
int drm_mm_reserve_node(struct drm_mm *mm, struct drm_mm_node *node);
-int drm_mm_insert_node_in_range_generic(struct drm_mm *mm,
- struct drm_mm_node *node,
- u64 size,
- u64 alignment,
- unsigned long color,
- u64 start,
- u64 end,
- enum drm_mm_search_flags sflags,
- enum drm_mm_allocator_flags aflags);
-
-/**
- * drm_mm_insert_node_in_range - ranged search for space and insert @node
- * @mm: drm_mm to allocate from
- * @node: preallocate node to insert
- * @size: size of the allocation
- * @alignment: alignment of the allocation
- * @start: start of the allowed range for this node
- * @end: end of the allowed range for this node
- * @flags: flags to fine-tune the allocation
- *
- * This is a simplified version of drm_mm_insert_node_in_range_generic() with
- * @color set to 0.
- *
- * The preallocated node must be cleared to 0.
- *
- * Returns:
- * 0 on success, -ENOSPC if there's no suitable hole.
- */
-static inline int drm_mm_insert_node_in_range(struct drm_mm *mm,
- struct drm_mm_node *node,
- u64 size,
- u64 alignment,
- u64 start,
- u64 end,
- enum drm_mm_search_flags flags)
-{
- return drm_mm_insert_node_in_range_generic(mm, node, size, alignment,
- 0, start, end, flags,
- DRM_MM_CREATE_DEFAULT);
-}
+int drm_mm_insert_node_in_range(struct drm_mm *mm,
+ struct drm_mm_node *node,
+ u64 size,
+ u64 alignment,
+ unsigned long color,
+ u64 start,
+ u64 end,
+ enum drm_mm_insert_mode mode);
/**
* drm_mm_insert_node_generic - search for space and insert @node
* @size: size of the allocation
* @alignment: alignment of the allocation
* @color: opaque tag value to use for this node
- * @sflags: flags to fine-tune the allocation search
- * @aflags: flags to fine-tune the allocation behavior
+ * @mode: fine-tune the allocation search and placement
*
* This is a simplified version of drm_mm_insert_node_in_range_generic() with no
* range restrictions applied.
drm_mm_insert_node_generic(struct drm_mm *mm, struct drm_mm_node *node,
u64 size, u64 alignment,
unsigned long color,
- enum drm_mm_search_flags sflags,
- enum drm_mm_allocator_flags aflags)
+ enum drm_mm_insert_mode mode)
{
- return drm_mm_insert_node_in_range_generic(mm, node,
- size, alignment, 0,
- 0, U64_MAX,
- sflags, aflags);
+ return drm_mm_insert_node_in_range(mm, node,
+ size, alignment, color,
+ 0, U64_MAX, mode);
}
/**
* @mm: drm_mm to allocate from
* @node: preallocate node to insert
* @size: size of the allocation
- * @alignment: alignment of the allocation
- * @flags: flags to fine-tune the allocation
*
* This is a simplified version of drm_mm_insert_node_generic() with @color set
* to 0.
*/
static inline int drm_mm_insert_node(struct drm_mm *mm,
struct drm_mm_node *node,
- u64 size,
- u64 alignment,
- enum drm_mm_search_flags flags)
+ u64 size)
{
- return drm_mm_insert_node_generic(mm, node,
- size, alignment, 0,
- flags, DRM_MM_CREATE_DEFAULT);
+ return drm_mm_insert_node_generic(mm, node, size, 0, 0, 0);
}
void drm_mm_remove_node(struct drm_mm_node *node);
struct drm_mm *mm,
u64 size, u64 alignment, unsigned long color,
u64 start, u64 end,
- unsigned int flags);
+ enum drm_mm_insert_mode mode);
/**
* drm_mm_scan_init - initialize lru scanning
* @size: size of the allocation
* @alignment: alignment of the allocation
* @color: opaque tag value to use for the allocation
- * @flags: flags to specify how the allocation will be performed afterwards
+ * @mode: fine-tune the allocation search and placement
*
* This is a simplified version of drm_mm_scan_init_with_range() with no range
* restrictions applied.
u64 size,
u64 alignment,
unsigned long color,
- unsigned int flags)
+ enum drm_mm_insert_mode mode)
{
drm_mm_scan_init_with_range(scan, mm,
size, alignment, color,
- 0, U64_MAX,
- flags);
+ 0, U64_MAX, mode);
}
bool drm_mm_scan_add_block(struct drm_mm_scan *scan,
projects / openwrt / staging / blogic.git / commitdiff