1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 #ifndef _MEMBLOCK_TEST_H
3 #define _MEMBLOCK_TEST_H
4
5 #include <stdlib.h>
6 #include <assert.h>
7 #include <linux/types.h>
8 #include <linux/memblock.h>
9 #include <linux/sizes.h>
10 #include <linux/printk.h>
11 #include <../selftests/kselftest.h>
12
13 #define MEM_SIZE SZ_16K
14 #define NUMA_NODES 8
15
16 enum test_flags {
17 /* No special request. */
18 TEST_F_NONE = 0x0,
19 /* Perform raw allocations (no zeroing of memory). */
20 TEST_F_RAW = 0x1,
21 };
22
23 /**
24 * ASSERT_EQ():
25 * Check the condition
26 * @_expected == @_seen
27 * If false, print failed test message (if running with --verbose) and then
28 * assert.
29 */
30 #define ASSERT_EQ(_expected, _seen) do { \
31 if ((_expected) != (_seen)) \
32 test_fail(); \
33 assert((_expected) == (_seen)); \
34 } while (0)
35
36 /**
37 * ASSERT_NE():
38 * Check the condition
39 * @_expected != @_seen
40 * If false, print failed test message (if running with --verbose) and then
41 * assert.
42 */
43 #define ASSERT_NE(_expected, _seen) do { \
44 if ((_expected) == (_seen)) \
45 test_fail(); \
46 assert((_expected) != (_seen)); \
47 } while (0)
48
49 /**
50 * ASSERT_LT():
51 * Check the condition
52 * @_expected < @_seen
53 * If false, print failed test message (if running with --verbose) and then
54 * assert.
55 */
56 #define ASSERT_LT(_expected, _seen) do { \
57 if ((_expected) >= (_seen)) \
58 test_fail(); \
59 assert((_expected) < (_seen)); \
60 } while (0)
61
62 /**
63 * ASSERT_LE():
64 * Check the condition
65 * @_expected <= @_seen
66 * If false, print failed test message (if running with --verbose) and then
67 * assert.
68 */
69 #define ASSERT_LE(_expected, _seen) do { \
70 if ((_expected) > (_seen)) \
71 test_fail(); \
72 assert((_expected) <= (_seen)); \
73 } while (0)
74
75 /**
76 * ASSERT_MEM_EQ():
77 * Check that the first @_size bytes of @_seen are all equal to @_expected.
78 * If false, print failed test message (if running with --verbose) and then
79 * assert.
80 */
81 #define ASSERT_MEM_EQ(_seen, _expected, _size) do { \
82 for (int _i = 0; _i < (_size); _i++) { \
83 ASSERT_EQ(((char *)_seen)[_i], (_expected)); \
84 } \
85 } while (0)
86
87 /**
88 * ASSERT_MEM_NE():
89 * Check that none of the first @_size bytes of @_seen are equal to @_expected.
90 * If false, print failed test message (if running with --verbose) and then
91 * assert.
92 */
93 #define ASSERT_MEM_NE(_seen, _expected, _size) do { \
94 for (int _i = 0; _i < (_size); _i++) { \
95 ASSERT_NE(((char *)_seen)[_i], (_expected)); \
96 } \
97 } while (0)
98
99 #define PREFIX_PUSH() prefix_push(__func__)
100
101 /*
102 * Available memory registered with memblock needs to be valid for allocs
103 * test to run. This is a convenience wrapper for memory allocated in
104 * dummy_physical_memory_init() that is later registered with memblock
105 * in setup_memblock().
106 */
107 struct test_memory {
108 void *base;
109 };
110
111 struct region {
112 phys_addr_t base;
113 phys_addr_t size;
114 };
115
region_end(struct memblock_region * rgn)116 static inline phys_addr_t __maybe_unused region_end(struct memblock_region *rgn)
117 {
118 return rgn->base + rgn->size;
119 }
120
121 void reset_memblock_regions(void);
122 void reset_memblock_attributes(void);
123 void setup_memblock(void);
124 void setup_numa_memblock(const unsigned int node_fracs[]);
125 void dummy_physical_memory_init(void);
126 void dummy_physical_memory_cleanup(void);
127 void parse_args(int argc, char **argv);
128
129 void test_fail(void);
130 void test_pass(void);
131 void test_print(const char *fmt, ...);
132 void prefix_reset(void);
133 void prefix_push(const char *prefix);
134 void prefix_pop(void);
135
test_pass_pop(void)136 static inline void test_pass_pop(void)
137 {
138 test_pass();
139 prefix_pop();
140 }
141
run_top_down(int (* func)())142 static inline void run_top_down(int (*func)())
143 {
144 memblock_set_bottom_up(false);
145 prefix_push("top-down");
146 func();
147 prefix_pop();
148 }
149
run_bottom_up(int (* func)())150 static inline void run_bottom_up(int (*func)())
151 {
152 memblock_set_bottom_up(true);
153 prefix_push("bottom-up");
154 func();
155 prefix_pop();
156 }
157
assert_mem_content(void * mem,int size,int flags)158 static inline void assert_mem_content(void *mem, int size, int flags)
159 {
160 if (flags & TEST_F_RAW)
161 ASSERT_MEM_NE(mem, 0, size);
162 else
163 ASSERT_MEM_EQ(mem, 0, size);
164 }
165
166 #endif
167
