1// SPDX-License-Identifier: GPL-3.0-or-later
2
3#include "test_engine_impl.h"
4
5#include <mos_stdlib.hpp>
6#include <mos_string.hpp>
7
8MOS_TEST_CASE(kmalloc_single)
9{
10 void *p = kcalloc<char>(n_members: 1024);
11 MOS_TEST_ASSERT(p != NULL, "kmalloc failed");
12 memset(s: p, c: 0, n: 1024);
13 kfree(ptr: p);
14}
15
16MOS_TEST_CASE(kmalloc_stress)
17{
18 void *p;
19 int i;
20 for (i = 0; i < 100; i++)
21 {
22 p = kcalloc<char>(n_members: 1024);
23 MOS_TEST_ASSERT(p != NULL, "kmalloc failed");
24 memset(s: p, c: 0, n: 1024);
25 kfree(ptr: p);
26 }
27}
28
29MOS_TEST_CASE(kmalloc_large)
30{
31 char *p = 0;
32 p = kcalloc<char>(n_members: 1 MB);
33 MOS_TEST_ASSERT(p != NULL, "kmalloc failed");
34 memset(s: p, c: 0, n: 1 MB);
35 kfree(ptr: p);
36
37 p = kcalloc<char>(n_members: 100 MB);
38 MOS_TEST_ASSERT(p != NULL, "kmalloc failed");
39 memset(s: p, c: 0, n: 100 MB);
40 kfree(ptr: p);
41
42 // we won't test larger allocations because for (32-bit) x86, the kernel
43 // heap starts at 0xd0000000, while the initrd is placed at 0xec000000,
44 // That only leaves 0x1c000000 bytes for the kernel heap i.e. ~460 MB.
45}
46
47MOS_TEST_CASE(kmalloc_a_lot)
48{
49 char *pointers[100];
50 for (int t = 0; t < 20; t++)
51 {
52 for (int i = 0; i < 50; i++)
53 {
54 pointers[i] = kcalloc<char>(n_members: 71);
55 MOS_TEST_ASSERT(pointers[i] != NULL, "failed to allocate memory");
56 memset(s: pointers[i], c: 0, n: 71);
57 }
58
59 for (int i = 0; i < 50; i++)
60 {
61 kfree(ptr: pointers[i]);
62 }
63 }
64}
65