From 1f6a99a1e7874650a62eaa106e12c00a19f7e7a1 Mon Sep 17 00:00:00 2001
From: Vegard Storheil Eriksen <zyp@jvnv.net>
Date: Fri, 29 Jan 2010 20:46:14 +0100
Subject: Rudimentary palloc().

---
 kernel/SConscript |  1 +
 kernel/main.c     |  4 ++++
 kernel/palloc.c   | 15 +++++++++++++++
 kernel/palloc.h   | 11 +++++++++++
 4 files changed, 31 insertions(+)
 create mode 100644 kernel/palloc.c
 create mode 100644 kernel/palloc.h

diff --git a/kernel/SConscript b/kernel/SConscript
index 89b5f03..47af722 100644
--- a/kernel/SConscript
+++ b/kernel/SConscript
@@ -34,6 +34,7 @@ kernel = env.Kernel('kernel', [
 	'idt.c',
 	'irq.c',
 	'main.c',
+	'palloc.c',
 	'panic.c',
 	'printf.c',
 ])
diff --git a/kernel/main.c b/kernel/main.c
index 5cc94d3..e8de5d2 100644
--- a/kernel/main.c
+++ b/kernel/main.c
@@ -1,4 +1,5 @@
 #include "printf.h"
+#include "palloc.h"
 #include "gdt.h"
 #include "idt.h"
 #include "irq.h"
@@ -7,6 +8,9 @@
 void main() {
 	printf("main()\n");
 	
+	palloc_init();
+	printf("Page allocator initiated.\n");
+	
 	gdt_init();
 	printf("GDT set.\n");
 	
diff --git a/kernel/palloc.c b/kernel/palloc.c
new file mode 100644
index 0000000..5ad6e56
--- /dev/null
+++ b/kernel/palloc.c
@@ -0,0 +1,15 @@
+#include "palloc.h"
+
+uint32_t palloc_last = 0x200000;
+
+void palloc_init() {
+	// TODO: Initialize bitmap from memory map.
+}
+
+uint32_t palloc() {
+	return palloc_last += 0x1000;
+}
+
+void pfree(uint32_t addr) {
+	
+}
diff --git a/kernel/palloc.h b/kernel/palloc.h
new file mode 100644
index 0000000..f846a96
--- /dev/null
+++ b/kernel/palloc.h
@@ -0,0 +1,11 @@
+#ifndef PALLOC_H
+#define PALLOC_H
+
+#include "types.h"
+
+void palloc_init();
+
+uint32_t palloc();
+void pfree(uint32_t addr);
+
+#endif
-- 
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