Commit a120647e authored by Mathieu Maret's avatar Mathieu Maret

TOFIX: implement testing for paging

parent 4a5f5674
......@@ -8,3 +8,4 @@
int pagingSetup(paddr_t upperKernelAddr);
int pageMap(vaddr_t vaddr, paddr_t paddr, int flags);
int pageUnmap(vaddr_t vaddr);
#include "list.h"
#include "mem.h"
#include "paging.h"
#include "serial.h"
#include "vga.h"
......@@ -38,8 +39,47 @@ void testPhymem(void)
}
}
static void testPaging(void)
{
printf("Testing paging\n");
struct mem_desc *allocated_page_list;
struct mem_desc
*page; // Cast in mem_desc to use it. In fact it's the addr of 4K free memory
list_init(allocated_page_list);
int allocCount = 0;
int freeCount = 0;
while ((page = (struct mem_desc *)allocPhyPage()) != NULL) {
pageMap((vaddr_t)page, (paddr_t)page, 0);
page->phy_addr = allocCount;
allocCount++;
list_add_tail(allocated_page_list, page);
}
printf("%d pages allocated\n", allocCount);
while ((page = list_pop_head(allocated_page_list)) != NULL) {
if (page->phy_addr != (ulong)freeCount) {
printf("Error page %d modified\n", (ulong)page);
}
if (unrefPhyPage((ulong)page)) {
printf("Failed to free page %d\n", (ulong)page);
}
pageUnmap((vaddr_t)page);
freeCount++;
}
printf("%d pages freed\n", freeCount);
if ((page = (struct mem_desc *)allocPhyPage()) == NULL) {
printf("Error ! Cannot allocate memory\n");
} else {
unrefPhyPage((ulong)page);
pageUnmap((vaddr_t)page);
}
}
void run_test(void)
{
testPaging();
printf("Testing Serial");
serialWrite('h');
serialWrite('e');
......
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