From 50fee8495e9329081067e9eb91f7e0ad9adc4025 Mon Sep 17 00:00:00 2001
From: Freya Murphy <freya@freyacat.org>
Date: Wed, 31 Jan 2024 12:49:06 -0500
Subject: better mboot and kalloc

---
 include/memory.h | 37 +++++++++++++++++++------------------
 1 file changed, 19 insertions(+), 18 deletions(-)

(limited to 'include/memory.h')

diff --git a/include/memory.h b/include/memory.h
index bec05f8..cbed363 100644
--- a/include/memory.h
+++ b/include/memory.h
@@ -2,19 +2,7 @@
 
 #include <stddef.h>
 #include <stdint.h>
-
-struct memory_segment {
-	uint64_t addr;
-	uint64_t len;
-	uint32_t type;
-	uint32_t reserved;
-} __attribute__((packed));
-
-struct memory_map {
-	uint32_t size;
-	uint32_t version;
-	struct memory_segment entries[];
-} __attribute__((packed));
+#include <shim.h>
 
 /**
  * Initalize system memory allocator
@@ -61,10 +49,23 @@ extern void *alloc_page(void);
 extern void *alloc_pages(int count);
 
 /**
- * Frees a single page in memory
+ * Frees a signle page in memory.
+ * Must be a page aligned allocated vitural pointer.
+ * Freeing in the middle of a block is allowed.
  * @param page - the pointer to the page
  */
 extern void free_page(void *page);
+// TODO: implement free_page
+
+/**
+ * Frees block of pages in memory.
+ * Must be a page aligned allocated vitural pointer.
+ * Freeing int he middle of a block is allowed,
+ * free_pages will from *page to end of block allocated.
+ * @param page - the pointer to the page
+ */
+extern void free_pages(void *page);
+// TODO: implement freeing in middle of block
 
 /**
  * Allocates at least len bytes of memory starting at
@@ -85,11 +86,11 @@ extern void *mmap(void *addr, size_t len);
 extern void unmap(void *addr);
 
 /**
- * Allocates size_t bytes in memory 
+ * Allocates size_t bytes in memory
  * @param size - the amount of bytes to allocate
  * @retruns the address allocated or NULL on failure
  */
-extern void *malloc(size_t size);
+extern void *kalloc(size_t size);
 
 /**
  * Reallocates a given allocated ptr to a new size of bytes in memory.
@@ -98,10 +99,10 @@ extern void *malloc(size_t size);
  * @param size - the amount of bytes to set the pointer to
  * @returns the address allocated or NULL on failure
  */
-extern void *realloc(void *ptr, size_t size);
+extern void *krealloc(void *ptr, size_t size);
 
 /**
  * Frees a allocated pointer in memory
  * @param ptr - the pointer to free
  */
-extern void free(void *ptr);
+extern void kfree(void *ptr);
-- 
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