create dtb allocator

the parent commit (b106df2447d23d6b3fcffa7cc87edde218d054f3) discussed
the possibility of creating dtb device discovery. for that, we have
replaced wdt device discovery with dtb device discovery. in the future,
we will use the pci kernel module to use device discovery via a PCI
controller

1 files changed, 5 insertions, 2 deletions

diff --git a/include/mem.h b/include/mem.h
index 12976df..6135786 100644
--- a/include/mem.h
+++ b/include/mem.h
@@ -1,8 +1,6 @@
 #pragma once
 #include <types.h>
 
-#define EHEAP_SIZE (512 * 1024)
-
 typedef enum {
     PAGE_FREE,
     PAGE_ALLOCATED
@@ -14,6 +12,11 @@ struct page {
     struct page* next;
 };
 
+struct mem_info {
+    void* start;
+    size_t size;
+};
+
 void* kmalloc(size_t size);
 void* memcpy(void* to, const void* from,size_t size);