updated tests for memory subsystem
This commit is contained in:
parent
da54e953f9
commit
75633d0697
1 changed files with 54 additions and 36 deletions
|
|
@ -34,6 +34,10 @@
|
|||
#define VIRT_FROM_ADDR 0x100000000000
|
||||
#define VIRT_TO_ADDR 0x200000000000
|
||||
|
||||
extern atomic_int32_t total_page;
|
||||
extern atomic_int32_t total_allocated_pages;
|
||||
extern atomic_int32_t total_available_pages;
|
||||
|
||||
/** @brief Simple helper to format our test results */
|
||||
static void test(size_t expr, char *fmt, ...)
|
||||
{
|
||||
|
|
@ -65,7 +69,8 @@ static uint16_t rand()
|
|||
}
|
||||
|
||||
/** @brief BSD sum algorithm ('sum' Unix command) and used by QEmu */
|
||||
uint16_t checksum(size_t start, size_t end) {
|
||||
uint16_t checksum(size_t start, size_t end)
|
||||
{
|
||||
size_t addr;
|
||||
uint16_t sum;
|
||||
|
||||
|
|
@ -78,19 +83,22 @@ uint16_t checksum(size_t start, size_t end) {
|
|||
return sum;
|
||||
}
|
||||
|
||||
static int paging_stage2(void *arg) {
|
||||
static int paging_stage2(void *arg)
|
||||
{
|
||||
size_t old, new;
|
||||
|
||||
kprintf("PAGING: entering stage 2...\n");
|
||||
|
||||
size_t cr3 = read_cr3();
|
||||
kprintf("cr3 new = %#lx\n", cr3);
|
||||
|
||||
old = *((size_t *) arg);
|
||||
kprintf("old sum: %lu\n", old);
|
||||
|
||||
new = checksum(VIRT_FROM_ADDR, VIRT_FROM_ADDR + PAGE_COUNT*PAGE_SIZE);
|
||||
test(old == new, "checksum(%p, %p) = %lu", VIRT_FROM_ADDR, VIRT_FROM_ADDR + PAGE_COUNT*PAGE_SIZE, new);
|
||||
new = checksum(VIRT_FROM_ADDR, VIRT_FROM_ADDR + SIZE);
|
||||
test(old == new, "checksum(%p, %p) = %lu", VIRT_FROM_ADDR, VIRT_FROM_ADDR + SIZE, new);
|
||||
|
||||
size_t cr3 = read_cr3();
|
||||
kprintf("cr3 new = %x\n", cr3);
|
||||
page_dump(0, -1L);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -105,19 +113,31 @@ static void paging(void)
|
|||
{
|
||||
size_t c, sum;
|
||||
size_t *p1, *p2;
|
||||
size_t virt_from, virt_to, virt_alloc;
|
||||
size_t virt_from, virt_to;
|
||||
size_t phys;
|
||||
size_t t;
|
||||
int ret;
|
||||
|
||||
// show original page maps
|
||||
page_dump(0, 0);
|
||||
page_stats(0, 0, 1); // reset accessed and dirty bits
|
||||
t = rdtsc();
|
||||
page_dump(0, -1L);
|
||||
kprintf("delta_t = %lu\n", rdtsc() - t);
|
||||
|
||||
t = rdtsc();
|
||||
page_stats(0, -1L, 1); // reset accessed and dirty bits
|
||||
kprintf("delta_t = %lu\n", rdtsc() - t);
|
||||
|
||||
kprintf("bookkeeping pages:\n");
|
||||
kprintf(" - total:\t%lu\n", atomic_int32_read(&total_pages));
|
||||
kprintf(" - alloc:\t%lu\n", atomic_int32_read(&total_allocated_pages));
|
||||
kprintf(" - avail:\t%lu\n", atomic_int32_read(&total_available_pages));
|
||||
|
||||
// allocate physical page frames
|
||||
phys = get_pages(PAGE_COUNT);
|
||||
test(phys, "get_pages(%lu) = 0x%lx", PAGE_COUNT, phys);
|
||||
|
||||
// create first mapping
|
||||
virt_from = map_region(VIRT_FROM_ADDR, phys, PAGE_COUNT, MAP_USER_SPACE);
|
||||
virt_from = map_region(VIRT_FROM_ADDR, phys, PAGE_COUNT, 0);
|
||||
test(virt_from, "map_region(0x%lx, 0x%lx, %lu, 0x%x) = 0x%lx", VIRT_FROM_ADDR, phys, PAGE_COUNT, 0, virt_from);
|
||||
|
||||
// check address translation
|
||||
|
|
@ -126,7 +146,7 @@ static void paging(void)
|
|||
|
||||
// write test data
|
||||
p1 = (size_t *) virt_from;
|
||||
for (c = 0; c < PAGE_COUNT*PAGE_SIZE/sizeof(size_t); c++) {
|
||||
for (c = 0; c < SIZE/sizeof(size_t); c++) {
|
||||
p1[c] = c;
|
||||
}
|
||||
|
||||
|
|
@ -135,8 +155,8 @@ static void paging(void)
|
|||
test(virt_to, "map_region(0x%lx, 0x%lx, %lu, 0x%x) = 0x%lx", VIRT_TO_ADDR, phys, PAGE_COUNT, 0, virt_to);
|
||||
|
||||
// show pagings infos again
|
||||
page_dump(0, 0);
|
||||
page_stats(0, 0, 0);
|
||||
page_dump(0, -1L);
|
||||
page_stats(0, -1L, 0);
|
||||
|
||||
// check address translation
|
||||
phys = virt_to_phys(virt_to);
|
||||
|
|
@ -144,7 +164,7 @@ static void paging(void)
|
|||
|
||||
// check if both mapped areas are equal
|
||||
p2 = (size_t *) virt_to;
|
||||
for (c = 0; c < PAGE_COUNT*PAGE_SIZE/sizeof(size_t); c++) {
|
||||
for (c = 0; c < SIZE/sizeof(size_t); c++) {
|
||||
if (p1[c] != p2[c])
|
||||
test(0, "data mismatch: *(%p) != *(%p)", &p1[c], &p2[c]);
|
||||
}
|
||||
|
|
@ -158,59 +178,59 @@ static void paging(void)
|
|||
virt_to = map_region(VIRT_TO_ADDR, phys+PAGE_SIZE, PAGE_COUNT, MAP_REMAP|MAP_USER_SPACE);
|
||||
test(virt_to, "map_region(0x%lx, 0x%lx, %lu, 0x%x) = 0x%lx (with MAP_REMAP flag)", VIRT_TO_ADDR, phys+PAGE_SIZE, PAGE_COUNT, MAP_REMAP, virt_to);
|
||||
|
||||
// check if data is not equal anymore (we remapped with 1 page offset)
|
||||
// check if data is not equal anymore (we remapped with +PAGE_SIZE offset)
|
||||
p2 = (size_t *) virt_to;
|
||||
for (c = 0; c < PAGE_COUNT*PAGE_SIZE/sizeof(size_t); c++) {
|
||||
for (c = 0; c < SIZE/sizeof(size_t); c++) {
|
||||
if (p1[c] == p2[c])
|
||||
test(0, "data match at *(%p) != *(%p)", &p1[c], &p2[c]);
|
||||
}
|
||||
test(1, "data is unequal");
|
||||
|
||||
// test vma_alloc
|
||||
virt_alloc = map_region(0, phys, PAGE_COUNT, 0);
|
||||
test(virt_alloc, "map_region(0x%lx, 0x%lx, %lu, 0x%x) = 0x%lx", 0, phys, PAGE_COUNT, 0, virt_alloc);
|
||||
// test unmapping
|
||||
ret = unmap_region(VIRT_TO_ADDR, PAGE_COUNT);
|
||||
test(!ret, "unmap_region(%#lx, %lu) = %u", VIRT_TO_ADDR, PAGE_COUNT, ret);
|
||||
|
||||
// data should match against new vm addr
|
||||
p2 = (size_t *) virt_alloc;
|
||||
for (c = 0; c < PAGE_COUNT*PAGE_SIZE/sizeof(size_t); c++) {
|
||||
if (p1[c] != p2[c])
|
||||
test(0, "data mismatch at *(%p) != *(%p)", &p1[c], &p2[c]);
|
||||
}
|
||||
test(1, "data is equal");
|
||||
page_dump(0, -1L);
|
||||
|
||||
// calc checksum
|
||||
sum = checksum(virt_alloc, virt_alloc + PAGE_COUNT*PAGE_SIZE);
|
||||
test(sum, "checksum(%p, %p) = %lu", virt_alloc, virt_alloc + PAGE_COUNT*PAGE_SIZE, sum);
|
||||
sum = checksum(virt_from, virt_from + SIZE);
|
||||
test(sum, "checksum(%p, %p) = %lu", virt_from, virt_from+SIZE, sum);
|
||||
|
||||
size_t cr3 = read_cr3();
|
||||
kprintf("cr3 old = %x\n", cr3);
|
||||
kprintf("cr3 old = %#lx\n", cr3);
|
||||
|
||||
//create_kernel_task(0, paging_stage2, &sum, NORMAL_PRIO);
|
||||
//sleep(3);
|
||||
create_kernel_task(0, paging_stage2, &sum, NORMAL_PRIO);
|
||||
sleep(5);
|
||||
}
|
||||
|
||||
/** @brief Test of the VMA allocator */
|
||||
static void vma(void)
|
||||
{
|
||||
int ret;
|
||||
vma_dump();
|
||||
|
||||
// vma_alloc
|
||||
size_t a1 = vma_alloc(SIZE, VMA_HEAP);
|
||||
test(a1, "vma_alloc(0x%x, 0x%x) = 0x%lx", SIZE, VMA_HEAP, a1);
|
||||
vma_dump();
|
||||
|
||||
size_t a2 = vma_alloc(SIZE, VMA_HEAP|VMA_USER);
|
||||
test(a2 != 0, "vma_alloc(0x%x, 0x%x) = 0x%lx", SIZE, VMA_HEAP|VMA_USER, a2);
|
||||
vma_dump();
|
||||
|
||||
// vma_free
|
||||
ret = vma_free(a1, a1+SIZE);
|
||||
test(ret >= 0, "vma_free(0x%lx, 0x%lx) = %i", a1, a1+SIZE, ret);
|
||||
|
||||
ret = vma_free(a2, a2+SIZE);
|
||||
test(ret >= 0, "vma_free(0x%lx, 0x%lx) = %i", a2, a2+SIZE, ret);
|
||||
vma_dump();
|
||||
|
||||
// vma_add
|
||||
ret = vma_add(VIRT_FROM_ADDR, VIRT_FROM_ADDR+SIZE, VMA_HEAP|VMA_USER);
|
||||
test(ret >= 0, "vma_add(0x%lx, 0x%lx, 0x%x) = %u", VIRT_FROM_ADDR, VIRT_FROM_ADDR+SIZE, VMA_HEAP|VMA_USER, ret);
|
||||
vma_dump();
|
||||
|
||||
ret = vma_add(VIRT_FROM_ADDR+SIZE, VIRT_FROM_ADDR+2*SIZE, VMA_HEAP|VMA_USER);
|
||||
test(ret >= 0, "vma_add(0x%lx, 0x%lx, 0x%x) = %u", VIRT_FROM_ADDR+SIZE, VIRT_FROM_ADDR+2*SIZE, VMA_HEAP|VMA_USER, ret);
|
||||
vma_dump();
|
||||
|
||||
ret = vma_add(VIRT_FROM_ADDR-SIZE, VIRT_FROM_ADDR, VMA_HEAP|VMA_USER);
|
||||
test(ret >= 0, "vma_add(0x%lx, 0x%lx, 0x%x) = %u", VIRT_FROM_ADDR-SIZE, VIRT_FROM_ADDR, VMA_HEAP|VMA_USER, ret);
|
||||
|
|
@ -219,11 +239,9 @@ static void vma(void)
|
|||
// vma_free
|
||||
ret = vma_free(VIRT_FROM_ADDR-SIZE, VIRT_FROM_ADDR);
|
||||
test(ret >= 0, "vma_free(0x%lx, 0x%lx) = %u", VIRT_FROM_ADDR-SIZE, VIRT_FROM_ADDR, ret);
|
||||
vma_dump();
|
||||
|
||||
ret = vma_free(VIRT_FROM_ADDR+SIZE, VIRT_FROM_ADDR+2*SIZE);
|
||||
test(ret >= 0, "vma_free(0x%lx, 0x%lx) = %u", VIRT_FROM_ADDR+SIZE, VIRT_FROM_ADDR+2*SIZE, ret);
|
||||
vma_dump();
|
||||
|
||||
ret = vma_free(VIRT_FROM_ADDR, VIRT_FROM_ADDR+SIZE);
|
||||
test(ret >= 0, "vma_free(0x%lx, 0x%lx) = %u", VIRT_FROM_ADDR, VIRT_FROM_ADDR+SIZE, ret);
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue