void bt_initialise_slab_second_stage() {
BT_u32 i = BT_CACHE_GENERIC_MIN;
while(i <= BT_CACHE_GENERIC_MAX) {
BT_CACHE *pCache = BT_GetSuitableCache(i);
if(!pCache) {
break;
}
pCache->slab_mutex = BT_kMutexCreate();
i = i << 1;
}
}
void bt_initialise_slab() {
BT_u32 i = BT_CACHE_GENERIC_MIN;
while(i <= BT_CACHE_GENERIC_MAX) {
BT_CACHE *pCache = BT_GetSuitableCache(i);
if(!pCache) {
break;
}
init_cache(pCache, i);
i = i << 1;
}
}
void *BT_kMalloc(BT_u32 ulSize) {
void *p;
if(!ulSize) {
return NULL;
}
ulSize=(ulSize+3)&0xFFFFFFFC;
BT_CACHE *pCache = BT_GetSuitableCache(ulSize+sizeof(struct MEM_TAG)+sizeof(struct MAGIC_TAG));
if(pCache) {
p = BT_CacheAlloc(pCache);
} else {
bt_paddr_t phys = bt_page_alloc(ulSize+sizeof(struct MEM_TAG)+sizeof(struct MAGIC_TAG));
if(!phys) {
return NULL;
}
p = (void *) bt_phys_to_virt(phys);
}
if(!p) {
return NULL;
}
struct MEM_TAG *tag = (struct MEM_TAG *) p;
tag->pCache = pCache;
tag->size = ulSize;
set_magic(&tag->tag_0);
set_magic(&tag->tag_1);
struct MAGIC_TAG *mempost = (struct MAGIC_TAG *) ((BT_u8 *) (tag+1) + ulSize);
set_magic(mempost);
/*
* Before the allocated memory we place a pointer to the pCache.
* This will be 0 in the case of a page allocation!
*/
return ((void *) (tag + 1));
}
void *BT_kMalloc(BT_u32 ulSize) {
void *p;
BT_CACHE *pCache = BT_GetSuitableCache(ulSize+sizeof(BT_CACHE *));
if(pCache) {
p = BT_CacheAlloc(pCache);
} else {
p = (void *) bt_phys_to_virt(bt_page_alloc(ulSize+sizeof(BT_CACHE *)));
if(!p) {
return NULL;
}
}
BT_CACHE **tag = (BT_CACHE **) p;
*tag = pCache;
/*
* Before the allocated memory we place a pointer to the pCache.
* This will be 0 in the case of a page allocation!
*/
return ((void *) (tag + 1));
}
