geemili
/
drm
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Remove the stupid root_node field from the core memory manager.

main
Thomas Hellstrom 2006-12-20 19:33:50 +01:00
parent 672593f611
commit 9acd4a13f2
2 changed files with 16 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
linux-core/drmP.h
View File

@ -545,7 +545,8 @@ typedef struct drm_mm_node {
} drm_mm_node_t;
typedef struct drm_mm {
drm_mm_node_t root_node;
struct list_head fl_entry;
struct list_head ml_entry;
} drm_mm_t;

29
linux-core/drm_mm.c
View File

@ -49,7 +49,7 @@ unsigned long drm_mm_tail_space(drm_mm_t *mm)
struct list_head *tail_node;
drm_mm_node_t *entry;
tail_node = mm->root_node.ml_entry.prev;
tail_node = mm->ml_entry.prev;
entry = list_entry(tail_node, drm_mm_node_t, ml_entry);
if (!entry->free)
return 0;
@ -62,7 +62,7 @@ int drm_mm_remove_space_from_tail(drm_mm_t *mm, unsigned long size)
struct list_head *tail_node;
drm_mm_node_t *entry;
tail_node = mm->root_node.ml_entry.prev;
tail_node = mm->ml_entry.prev;
entry = list_entry(tail_node, drm_mm_node_t, ml_entry);
if (!entry->free)
return -ENOMEM;
@ -91,8 +91,8 @@ static int drm_mm_create_tail_node(drm_mm_t *mm,
child->start = start;
child->mm = mm;
list_add_tail(&child->ml_entry, &mm->root_node.ml_entry);
list_add_tail(&child->fl_entry, &mm->root_node.fl_entry);
list_add_tail(&child->ml_entry, &mm->ml_entry);
list_add_tail(&child->fl_entry, &mm->fl_entry);
return 0;
}
@ -103,7 +103,7 @@ int drm_mm_add_space_to_tail(drm_mm_t *mm, unsigned long size)
struct list_head *tail_node;
drm_mm_node_t *entry;
tail_node = mm->root_node.ml_entry.prev;
tail_node = mm->ml_entry.prev;
entry = list_entry(tail_node, drm_mm_node_t, ml_entry);
if (!entry->free) {
return drm_mm_create_tail_node(mm, entry->start + entry->size, size);
@ -183,9 +183,8 @@ void drm_mm_put_block(drm_mm_node_t * cur)
{
drm_mm_t *mm = cur->mm;
drm_mm_node_t *list_root = &mm->root_node;
struct list_head *cur_head = &cur->ml_entry;
struct list_head *root_head = &list_root->ml_entry;
struct list_head *root_head = &mm->ml_entry;
drm_mm_node_t *prev_node = NULL;
drm_mm_node_t *next_node;
@ -216,7 +215,7 @@ void drm_mm_put_block(drm_mm_node_t * cur)
}
if (!merged) {
cur->free = 1;
list_add(&cur->fl_entry, &list_root->fl_entry);
list_add(&cur->fl_entry, &mm->fl_entry);
} else {
list_del(&cur->ml_entry);
drm_ctl_free(cur, sizeof(*cur), DRM_MEM_MM);
@ -228,7 +227,7 @@ drm_mm_node_t *drm_mm_search_free(const drm_mm_t * mm,
unsigned alignment, int best_match)
{
struct list_head *list;
const struct list_head *free_stack = &mm->root_node.fl_entry;
const struct list_head *free_stack = &mm->fl_entry;
drm_mm_node_t *entry;
drm_mm_node_t *best;
unsigned long best_size;
@ -263,15 +262,15 @@ drm_mm_node_t *drm_mm_search_free(const drm_mm_t * mm,
int drm_mm_clean(drm_mm_t * mm)
{
struct list_head *head = &mm->root_node.ml_entry;
struct list_head *head = &mm->ml_entry;
return (head->next->next == head);
}
int drm_mm_init(drm_mm_t * mm, unsigned long start, unsigned long size)
{
INIT_LIST_HEAD(&mm->root_node.ml_entry);
INIT_LIST_HEAD(&mm->root_node.fl_entry);
INIT_LIST_HEAD(&mm->ml_entry);
INIT_LIST_HEAD(&mm->fl_entry);
return drm_mm_create_tail_node(mm, start, size);
}
@ -280,13 +279,13 @@ EXPORT_SYMBOL(drm_mm_init);
void drm_mm_takedown(drm_mm_t * mm)
{
struct list_head *bnode = mm->root_node.fl_entry.next;
struct list_head *bnode = mm->fl_entry.next;
drm_mm_node_t *entry;
entry = list_entry(bnode, drm_mm_node_t, fl_entry);
if (entry->ml_entry.next != &mm->root_node.ml_entry ||
entry->fl_entry.next != &mm->root_node.fl_entry) {
if (entry->ml_entry.next != &mm->ml_entry ||
entry->fl_entry.next != &mm->fl_entry) {
DRM_ERROR("Memory manager not clean. Delaying takedown\n");
return;
}