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-rw-r--r--drivers/gpu/drm/drm_gem.c2
-rw-r--r--drivers/gpu/drm/drm_mm.c169
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c6
-rw-r--r--drivers/gpu/drm/i915/i915_gem_evict.c9
-rw-r--r--include/drm/drm_mm.h93
5 files changed, 191 insertions, 88 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index d58e69d..fbe0842 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -354,7 +354,7 @@ drm_gem_create_mmap_offset(struct drm_gem_object *obj)
/* Get a DRM GEM mmap offset allocated... */
list->file_offset_node = drm_mm_search_free(&mm->offset_manager,
- obj->size / PAGE_SIZE, 0, 0);
+ obj->size / PAGE_SIZE, 0, false);
if (!list->file_offset_node) {
DRM_ERROR("failed to allocate offset for bo %d\n", obj->name);
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index 961fb54..9bb82f7 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -118,45 +118,53 @@ static inline unsigned long drm_mm_hole_node_end(struct drm_mm_node *hole_node)
static void drm_mm_insert_helper(struct drm_mm_node *hole_node,
struct drm_mm_node *node,
- unsigned long size, unsigned alignment)
+ unsigned long size, unsigned alignment,
+ unsigned long color)
{
struct drm_mm *mm = hole_node->mm;
- unsigned long tmp = 0, wasted = 0;
unsigned long hole_start = drm_mm_hole_node_start(hole_node);
unsigned long hole_end = drm_mm_hole_node_end(hole_node);
+ unsigned long adj_start = hole_start;
+ unsigned long adj_end = hole_end;
BUG_ON(!hole_node->hole_follows || node->allocated);
- if (alignment)
- tmp = hole_start % alignment;
+ if (mm->color_adjust)
+ mm->color_adjust(hole_node, color, &adj_start, &adj_end);
- if (!tmp) {
+ if (alignment) {
+ unsigned tmp = adj_start % alignment;
+ if (tmp)
+ adj_start += alignment - tmp;
+ }
+
+ if (adj_start == hole_start) {
hole_node->hole_follows = 0;
- list_del_init(&hole_node->hole_stack);
- } else
- wasted = alignment - tmp;
+ list_del(&hole_node->hole_stack);
+ }
- node->start = hole_start + wasted;
+ node->start = adj_start;
node->size = size;
node->mm = mm;
+ node->color = color;
node->allocated = 1;
INIT_LIST_HEAD(&node->hole_stack);
list_add(&node->node_list, &hole_node->node_list);
- BUG_ON(node->start + node->size > hole_end);
+ BUG_ON(node->start + node->size > adj_end);
+ node->hole_follows = 0;
if (node->start + node->size < hole_end) {
list_add(&node->hole_stack, &mm->hole_stack);
node->hole_follows = 1;
- } else {
- node->hole_follows = 0;
}
}
struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *hole_node,
unsigned long size,
unsigned alignment,
+ unsigned long color,
int atomic)
{
struct drm_mm_node *node;
@@ -165,7 +173,7 @@ struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *hole_node,
if (unlikely(node == NULL))
return NULL;
- drm_mm_insert_helper(hole_node, node, size, alignment);
+ drm_mm_insert_helper(hole_node, node, size, alignment, color);
return node;
}
@@ -181,11 +189,11 @@ int drm_mm_insert_node(struct drm_mm *mm, struct drm_mm_node *node,
{
struct drm_mm_node *hole_node;
- hole_node = drm_mm_search_free(mm, size, alignment, 0);
+ hole_node = drm_mm_search_free(mm, size, alignment, false);
if (!hole_node)
return -ENOSPC;
- drm_mm_insert_helper(hole_node, node, size, alignment);
+ drm_mm_insert_helper(hole_node, node, size, alignment, 0);
return 0;
}
@@ -194,50 +202,57 @@ EXPORT_SYMBOL(drm_mm_insert_node);
static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node,
struct drm_mm_node *node,
unsigned long size, unsigned alignment,
+ unsigned long color,
unsigned long start, unsigned long end)
{
struct drm_mm *mm = hole_node->mm;
- unsigned long tmp = 0, wasted = 0;
unsigned long hole_start = drm_mm_hole_node_start(hole_node);
unsigned long hole_end = drm_mm_hole_node_end(hole_node);
+ unsigned long adj_start = hole_start;
+ unsigned long adj_end = hole_end;
BUG_ON(!hole_node->hole_follows || node->allocated);
- if (hole_start < start)
- wasted += start - hole_start;
- if (alignment)
- tmp = (hole_start + wasted) % alignment;
+ if (mm->color_adjust)
+ mm->color_adjust(hole_node, color, &adj_start, &adj_end);
- if (tmp)
- wasted += alignment - tmp;
+ if (adj_start < start)
+ adj_start = start;
+
+ if (alignment) {
+ unsigned tmp = adj_start % alignment;
+ if (tmp)
+ adj_start += alignment - tmp;
+ }
- if (!wasted) {
+ if (adj_start == hole_start) {
hole_node->hole_follows = 0;
- list_del_init(&hole_node->hole_stack);
+ list_del(&hole_node->hole_stack);
}
- node->start = hole_start + wasted;
+ node->start = adj_start;
node->size = size;
node->mm = mm;
+ node->color = color;
node->allocated = 1;
INIT_LIST_HEAD(&node->hole_stack);
list_add(&node->node_list, &hole_node->node_list);
- BUG_ON(node->start + node->size > hole_end);
+ BUG_ON(node->start + node->size > adj_end);
BUG_ON(node->start + node->size > end);
+ node->hole_follows = 0;
if (node->start + node->size < hole_end) {
list_add(&node->hole_stack, &mm->hole_stack);
node->hole_follows = 1;
- } else {
- node->hole_follows = 0;
}
}
struct drm_mm_node *drm_mm_get_block_range_generic(struct drm_mm_node *hole_node,
unsigned long size,
unsigned alignment,
+ unsigned long color,
unsigned long start,
unsigned long end,
int atomic)
@@ -248,7 +263,7 @@ struct drm_mm_node *drm_mm_get_block_range_generic(struct drm_mm_node *hole_node
if (unlikely(node == NULL))
return NULL;
- drm_mm_insert_helper_range(hole_node, node, size, alignment,
+ drm_mm_insert_helper_range(hole_node, node, size, alignment, color,
start, end);
return node;
@@ -267,11 +282,11 @@ int drm_mm_insert_node_in_range(struct drm_mm *mm, struct drm_mm_node *node,
struct drm_mm_node *hole_node;
hole_node = drm_mm_search_free_in_range(mm, size, alignment,
- start, end, 0);
+ start, end, false);
if (!hole_node)
return -ENOSPC;
- drm_mm_insert_helper_range(hole_node, node, size, alignment,
+ drm_mm_insert_helper_range(hole_node, node, size, alignment, 0,
start, end);
return 0;
@@ -336,27 +351,23 @@ EXPORT_SYMBOL(drm_mm_put_block);
static int check_free_hole(unsigned long start, unsigned long end,
unsigned long size, unsigned alignment)
{
- unsigned wasted = 0;
-
if (end - start < size)
return 0;
if (alignment) {
unsigned tmp = start % alignment;
if (tmp)
- wasted = alignment - tmp;
- }
-
- if (end >= start + size + wasted) {
- return 1;
+ start += alignment - tmp;
}
- return 0;
+ return end >= start + size;
}
-struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm,
- unsigned long size,
- unsigned alignment, int best_match)
+struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long color,
+ bool best_match)
{
struct drm_mm_node *entry;
struct drm_mm_node *best;
@@ -368,10 +379,17 @@ struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm,
best_size = ~0UL;
list_for_each_entry(entry, &mm->hole_stack, hole_stack) {
+ unsigned long adj_start = drm_mm_hole_node_start(entry);
+ unsigned long adj_end = drm_mm_hole_node_end(entry);
+
+ if (mm->color_adjust) {
+ mm->color_adjust(entry, color, &adj_start, &adj_end);
+ if (adj_end <= adj_start)
+ continue;
+ }
+
BUG_ON(!entry->hole_follows);
- if (!check_free_hole(drm_mm_hole_node_start(entry),
- drm_mm_hole_node_end(entry),
- size, alignment))
+ if (!check_free_hole(adj_start, adj_end, size, alignment))
continue;
if (!best_match)
@@ -385,14 +403,15 @@ struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm,
return best;
}
-EXPORT_SYMBOL(drm_mm_search_free);
-
-struct drm_mm_node *drm_mm_search_free_in_range(const struct drm_mm *mm,
- unsigned long size,
- unsigned alignment,
- unsigned long start,
- unsigned long end,
- int best_match)
+EXPORT_SYMBOL(drm_mm_search_free_generic);
+
+struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long color,
+ unsigned long start,
+ unsigned long end,
+ bool best_match)
{
struct drm_mm_node *entry;
struct drm_mm_node *best;
@@ -410,6 +429,13 @@ struct drm_mm_node *drm_mm_search_free_in_range(const struct drm_mm *mm,
end : drm_mm_hole_node_end(entry);
BUG_ON(!entry->hole_follows);
+
+ if (mm->color_adjust) {
+ mm->color_adjust(entry, color, &adj_start, &adj_end);
+ if (adj_end <= adj_start)
+ continue;
+ }
+
if (!check_free_hole(adj_start, adj_end, size, alignment))
continue;
@@ -424,7 +450,7 @@ struct drm_mm_node *drm_mm_search_free_in_range(const struct drm_mm *mm,
return best;
}
-EXPORT_SYMBOL(drm_mm_search_free_in_range);
+EXPORT_SYMBOL(drm_mm_search_free_in_range_generic);
/**
* Moves an allocation. To be used with embedded struct drm_mm_node.
@@ -437,6 +463,7 @@ void drm_mm_replace_node(struct drm_mm_node *old, struct drm_mm_node *new)
new->mm = old->mm;
new->start = old->start;
new->size = old->size;
+ new->color = old->color;
old->allocated = 0;
new->allocated = 1;
@@ -452,9 +479,12 @@ EXPORT_SYMBOL(drm_mm_replace_node);
* Warning: As long as the scan list is non-empty, no other operations than
* adding/removing nodes to/from the scan list are allowed.
*/
-void drm_mm_init_scan(struct drm_mm *mm, unsigned long size,
- unsigned alignment)
+void drm_mm_init_scan(struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long color)
{
+ mm->scan_color = color;
mm->scan_alignment = alignment;
mm->scan_size = size;
mm->scanned_blocks = 0;
@@ -474,11 +504,14 @@ EXPORT_SYMBOL(drm_mm_init_scan);
* Warning: As long as the scan list is non-empty, no other operations than
* adding/removing nodes to/from the scan list are allowed.
*/
-void drm_mm_init_scan_with_range(struct drm_mm *mm, unsigned long size,
+void drm_mm_init_scan_with_range(struct drm_mm *mm,
+ unsigned long size,
unsigned alignment,
+ unsigned long color,
unsigned long start,
unsigned long end)
{
+ mm->scan_color = color;
mm->scan_alignment = alignment;
mm->scan_size = size;
mm->scanned_blocks = 0;
@@ -522,17 +555,21 @@ int drm_mm_scan_add_block(struct drm_mm_node *node)
hole_start = drm_mm_hole_node_start(prev_node);
hole_end = drm_mm_hole_node_end(prev_node);
+
+ adj_start = hole_start;
+ adj_end = hole_end;
+
+ if (mm->color_adjust)
+ mm->color_adjust(prev_node, mm->scan_color, &adj_start, &adj_end);
+
if (mm->scan_check_range) {
- adj_start = hole_start < mm->scan_start ?
- mm->scan_start : hole_start;
- adj_end = hole_end > mm->scan_end ?
- mm->scan_end : hole_end;
- } else {
- adj_start = hole_start;
- adj_end = hole_end;
+ if (adj_start < mm->scan_start)
+ adj_start = mm->scan_start;
+ if (adj_end > mm->scan_end)
+ adj_end = mm->scan_end;
}
- if (check_free_hole(adj_start , adj_end,
+ if (check_free_hole(adj_start, adj_end,
mm->scan_size, mm->scan_alignment)) {
mm->scan_hit_start = hole_start;
mm->scan_hit_size = hole_end;
@@ -616,6 +653,8 @@ int drm_mm_init(struct drm_mm * mm, unsigned long start, unsigned long size)
mm->head_node.size = start - mm->head_node.start;
list_add_tail(&mm->head_node.hole_stack, &mm->hole_stack);
+ mm->color_adjust = NULL;
+
return 0;
}
EXPORT_SYMBOL(drm_mm_init);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 2b54142..0fdb3d2 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2748,8 +2748,8 @@ i915_gem_object_bind_to_gtt(struct drm_i915_gem_object *obj,
if (map_and_fenceable)
free_space =
drm_mm_search_free_in_range(&dev_priv->mm.gtt_space,
- size, alignment, 0,
- dev_priv->mm.gtt_mappable_end,
+ size, alignment,
+ 0, dev_priv->mm.gtt_mappable_end,
0);
else
free_space = drm_mm_search_free(&dev_priv->mm.gtt_space,
@@ -2760,7 +2760,7 @@ i915_gem_object_bind_to_gtt(struct drm_i915_gem_object *obj,
obj->gtt_space =
drm_mm_get_block_range_generic(free_space,
size, alignment, 0,
- dev_priv->mm.gtt_mappable_end,
+ 0, dev_priv->mm.gtt_mappable_end,
0);
else
obj->gtt_space =
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index ae7c24e..eba0308 100644
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -78,11 +78,12 @@ i915_gem_evict_something(struct drm_device *dev, int min_size,
INIT_LIST_HEAD(&unwind_list);
if (mappable)
- drm_mm_init_scan_with_range(&dev_priv->mm.gtt_space, min_size,
- alignment, 0,
- dev_priv->mm.gtt_mappable_end);
+ drm_mm_init_scan_with_range(&dev_priv->mm.gtt_space,
+ min_size, alignment, 0,
+ 0, dev_priv->mm.gtt_mappable_end);
else
- drm_mm_init_scan(&dev_priv->mm.gtt_space, min_size, alignment);
+ drm_mm_init_scan(&dev_priv->mm.gtt_space,
+ min_size, alignment, 0);
/* First see if there is a large enough contiguous idle region... */
list_for_each_entry(obj, &dev_priv->mm.inactive_list, mm_list) {
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index 564b14a..06d7f79 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -50,6 +50,7 @@ struct drm_mm_node {
unsigned scanned_next_free : 1;
unsigned scanned_preceeds_hole : 1;
unsigned allocated : 1;
+ unsigned long color;
unsigned long start;
unsigned long size;
struct drm_mm *mm;
@@ -66,6 +67,7 @@ struct drm_mm {
spinlock_t unused_lock;
unsigned int scan_check_range : 1;
unsigned scan_alignment;
+ unsigned long scan_color;
unsigned long scan_size;
unsigned long scan_hit_start;
unsigned scan_hit_size;
@@ -73,6 +75,9 @@ struct drm_mm {
unsigned long scan_start;
unsigned long scan_end;
struct drm_mm_node *prev_scanned_node;
+
+ void (*color_adjust)(struct drm_mm_node *node, unsigned long color,
+ unsigned long *start, unsigned long *end);
};
static inline bool drm_mm_node_allocated(struct drm_mm_node *node)
@@ -100,11 +105,13 @@ static inline bool drm_mm_initialized(struct drm_mm *mm)
extern struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node,
unsigned long size,
unsigned alignment,
+ unsigned long color,
int atomic);
extern struct drm_mm_node *drm_mm_get_block_range_generic(
struct drm_mm_node *node,
unsigned long size,
unsigned alignment,
+ unsigned long color,
unsigned long start,
unsigned long end,
int atomic);
@@ -112,13 +119,13 @@ static inline struct drm_mm_node *drm_mm_get_block(struct drm_mm_node *parent,
unsigned long size,
unsigned alignment)
{
- return drm_mm_get_block_generic(parent, size, alignment, 0);
+ return drm_mm_get_block_generic(parent, size, alignment, 0, 0);
}
static inline struct drm_mm_node *drm_mm_get_block_atomic(struct drm_mm_node *parent,
unsigned long size,
unsigned alignment)
{
- return drm_mm_get_block_generic(parent, size, alignment, 1);
+ return drm_mm_get_block_generic(parent, size, alignment, 0, 1);
}
static inline struct drm_mm_node *drm_mm_get_block_range(
struct drm_mm_node *parent,
@@ -127,8 +134,19 @@ static inline struct drm_mm_node *drm_mm_get_block_range(
unsigned long start,
unsigned long end)
{
- return drm_mm_get_block_range_generic(parent, size, alignment,
- start, end, 0);
+ return drm_mm_get_block_range_generic(parent, size, alignment, 0,
+ start, end, 0);
+}
+static inline struct drm_mm_node *drm_mm_get_color_block_range(
+ struct drm_mm_node *parent,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long color,
+ unsigned long start,
+ unsigned long end)
+{
+ return drm_mm_get_block_range_generic(parent, size, alignment, color,
+ start, end, 0);
}
static inline struct drm_mm_node *drm_mm_get_block_atomic_range(
struct drm_mm_node *parent,
@@ -137,7 +155,7 @@ static inline struct drm_mm_node *drm_mm_get_block_atomic_range(
unsigned long start,
unsigned long end)
{
- return drm_mm_get_block_range_generic(parent, size, alignment,
+ return drm_mm_get_block_range_generic(parent, size, alignment, 0,
start, end, 1);
}
extern int drm_mm_insert_node(struct drm_mm *mm, struct drm_mm_node *node,
@@ -149,18 +167,59 @@ extern int drm_mm_insert_node_in_range(struct drm_mm *mm,
extern void drm_mm_put_block(struct drm_mm_node *cur);
extern void drm_mm_remove_node(struct drm_mm_node *node);
extern void drm_mm_replace_node(struct drm_mm_node *old, struct drm_mm_node *new);
-extern struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm,
- unsigned long size,
- unsigned alignment,
- int best_match);
-extern struct drm_mm_node *drm_mm_search_free_in_range(
+extern struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long color,
+ bool best_match);
+extern struct drm_mm_node *drm_mm_search_free_in_range_generic(
+ const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long color,
+ unsigned long start,
+ unsigned long end,
+ bool best_match);
+static inline struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ bool best_match)
+{
+ return drm_mm_search_free_generic(mm,size, alignment, 0, best_match);
+}
+static inline struct drm_mm_node *drm_mm_search_free_in_range(
const struct drm_mm *mm,
unsigned long size,
unsigned alignment,
unsigned long start,
unsigned long end,
- int best_match);
-extern int drm_mm_init(struct drm_mm *mm, unsigned long start,
+ bool best_match)
+{
+ return drm_mm_search_free_in_range_generic(mm, size, alignment, 0,
+ start, end, best_match);
+}
+static inline struct drm_mm_node *drm_mm_search_free_color(const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long color,
+ bool best_match)
+{
+ return drm_mm_search_free_generic(mm,size, alignment, color, best_match);
+}
+static inline struct drm_mm_node *drm_mm_search_free_in_range_color(
+ const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long color,
+ unsigned long start,
+ unsigned long end,
+ bool best_match)
+{
+ return drm_mm_search_free_in_range_generic(mm, size, alignment, color,
+ start, end, best_match);
+}
+extern int drm_mm_init(struct drm_mm *mm,
+ unsigned long start,
unsigned long size);
extern void drm_mm_takedown(struct drm_mm *mm);
extern int drm_mm_clean(struct drm_mm *mm);
@@ -171,10 +230,14 @@ static inline struct drm_mm *drm_get_mm(struct drm_mm_node *block)
return block->mm;
}
-void drm_mm_init_scan(struct drm_mm *mm, unsigned long size,
- unsigned alignment);
-void drm_mm_init_scan_with_range(struct drm_mm *mm, unsigned long size,
+void drm_mm_init_scan(struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ unsigned long color);
+void drm_mm_init_scan_with_range(struct drm_mm *mm,
+ unsigned long size,
unsigned alignment,
+ unsigned long color,
unsigned long start,
unsigned long end);
int drm_mm_scan_add_block(struct drm_mm_node *node);
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