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This commit is contained in:
Kamil Kowalczyk
2025-09-27 15:16:26 +02:00
parent 5af7c5276a
commit 3b1bb9d531
63 changed files with 1087 additions and 407 deletions
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11
kernel/bitmap/bitmap.c
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@ -3,6 +3,7 @@
#include <stdbool.h>
#include "bitmap.h"
#include "util/util.h"
#include "kprintf.h"
void *bitmap_toptr(BitMap *bm, size_t block) {
uint8_t *ptr = (uint8_t *)(bm->mem_start + (block * BITMAP_BLOCK_SIZE));
@ -104,13 +105,3 @@ void *bitmap_alloc(BitMap *bm, size_t blocks) {
void bitmap_free(BitMap *bm, void *base, size_t blocks) {
bitmap_markregion(bm, base, BITMAP_BLOCK_SIZE * blocks, 0);
}
size_t bitmap_allocpageframe(BitMap *bm) {
size_t pickedreg = bitmap_freeregion(bm, 1);
bitmap_markblocks(bm, pickedreg, 1, 1);
return (bm->mem_start + (pickedreg * BITMAP_BLOCK_SIZE));
}
void bitmap_freepageframe(BitMap *bm, void *addr) {
bitmap_markregion(bm, addr, BITMAP_BLOCK_SIZE * 1, 0);
}

2
kernel/bitmap/bitmap.h
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@ -31,7 +31,5 @@ void bitmap_markregion(BitMap *bm, void *baseptr, size_t size, bool is_used);
size_t bitmap_freeregion(BitMap *bm, size_t blocks);
void *bitmap_alloc(BitMap *bm, size_t blocks);
void bitmap_free(BitMap *bm, void *base, size_t blocks);
size_t bitmap_allocpageframe(BitMap *bm);
void bitmap_freepageframe(BitMap *bm, void *addr);
#endif // BITMAP_BITMAP_H_