diff options
Diffstat (limited to 'src/kernel/mem/mem.c')
| -rw-r--r-- | src/kernel/mem/mem.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/kernel/mem/mem.c b/src/kernel/mem/mem.c index 06242a5..47a03dc 100644 --- a/src/kernel/mem/mem.c +++ b/src/kernel/mem/mem.c @@ -22,6 +22,7 @@ static struct freepage { } freepages[FREEPAGESTOKEEP]; uint32_t freepagecount = 0; +/* For internal use only. Populates the cache of pages that can be given to requesters. */ static void get_free_pages() { static uint32_t locked = 0; uint32_t i; @@ -49,6 +50,7 @@ static void get_free_pages() { locked = 0; } +/* Gives one page from the cache to someone requesting it. */ void* kmalloc_page(size_t *phys) { cli(); get_free_pages(); @@ -72,12 +74,14 @@ void kfree_page(void* ptr) { static struct heap kheap; +/* Called on kernel start. Creates the kernel heap. */ void kheap_init() { heap_create(&kheap, (mem_placementAddr & 0xFFFFF000) + 0x1000, KHEAP_IDXSIZE, KHEAP_INITSIZE, KHEAP_MAXSIZE); kheap_working = 1; monitor_write("[KHeap] "); } +/* Allocates on the heap if possible. If not possible, allocates just after the kernel code. */ void* kmalloc(size_t size) { if (kheap_working) { return heap_alloc(&kheap, size); |