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_32K
14 #define NUMA_NODES 8
15
16 #define INIT_MEMBLOCK_REGIONS 128
17 #define INIT_MEMBLOCK_RESERVED_REGIONS INIT_MEMBLOCK_REGIONS
18
19 enum test_flags {
20 /* No special request. */
21 TEST_F_NONE = 0x0,
22 /* Perform raw allocations (no zeroing of memory). */
23 TEST_F_RAW = 0x1,
24 /* Perform allocations on the exact node specified. */
25 TEST_F_EXACT = 0x2
26 };
27
28 /**
29 * ASSERT_EQ():
30 * Check the condition
31 * @_expected == @_seen
32 * If false, print failed test message (if running with --verbose) and then
33 * assert.
34 */
35 #define ASSERT_EQ(_expected, _seen) do { \
36 if ((_expected) != (_seen)) \
37 test_fail(); \
38 assert((_expected) == (_seen)); \
39 } while (0)
40
41 /**
42 * ASSERT_NE():
43 * Check the condition
44 * @_expected != @_seen
45 * If false, print failed test message (if running with --verbose) and then
46 * assert.
47 */
48 #define ASSERT_NE(_expected, _seen) do { \
49 if ((_expected) == (_seen)) \
50 test_fail(); \
51 assert((_expected) != (_seen)); \
52 } while (0)
53
54 /**
55 * ASSERT_LT():
56 * Check the condition
57 * @_expected < @_seen
58 * If false, print failed test message (if running with --verbose) and then
59 * assert.
60 */
61 #define ASSERT_LT(_expected, _seen) do { \
62 if ((_expected) >= (_seen)) \
63 test_fail(); \
64 assert((_expected) < (_seen)); \
65 } while (0)
66
67 /**
68 * ASSERT_LE():
69 * Check the condition
70 * @_expected <= @_seen
71 * If false, print failed test message (if running with --verbose) and then
72 * assert.
73 */
74 #define ASSERT_LE(_expected, _seen) do { \
75 if ((_expected) > (_seen)) \
76 test_fail(); \
77 assert((_expected) <= (_seen)); \
78 } while (0)
79
80 /**
81 * ASSERT_MEM_EQ():
82 * Check that the first @_size bytes of @_seen are all equal to @_expected.
83 * If false, print failed test message (if running with --verbose) and then
84 * assert.
85 */
86 #define ASSERT_MEM_EQ(_seen, _expected, _size) do { \
87 for (int _i = 0; _i < (_size); _i++) { \
88 ASSERT_EQ(((char *)_seen)[_i], (_expected)); \
89 } \
90 } while (0)
91
92 /**
93 * ASSERT_MEM_NE():
94 * Check that none of the first @_size bytes of @_seen are equal to @_expected.
95 * If false, print failed test message (if running with --verbose) and then
96 * assert.
97 */
98 #define ASSERT_MEM_NE(_seen, _expected, _size) do { \
99 for (int _i = 0; _i < (_size); _i++) { \
100 ASSERT_NE(((char *)_seen)[_i], (_expected)); \
101 } \
102 } while (0)
103
104 #define PREFIX_PUSH() prefix_push(__func__)
105
106 /*
107 * Available memory registered with memblock needs to be valid for allocs
108 * test to run. This is a convenience wrapper for memory allocated in
109 * dummy_physical_memory_init() that is later registered with memblock
110 * in setup_memblock().
111 */
112 struct test_memory {
113 void *base;
114 };
115
116 struct region {
117 phys_addr_t base;
118 phys_addr_t size;
119 };
120
region_end(struct memblock_region * rgn)121 static inline phys_addr_t __maybe_unused region_end(struct memblock_region *rgn)
122 {
123 return rgn->base + rgn->size;
124 }
125
126 void reset_memblock_regions(void);
127 void reset_memblock_attributes(void);
128 void setup_memblock(void);
129 void setup_numa_memblock(const unsigned int node_fracs[]);
130 void dummy_physical_memory_init(void);
131 void dummy_physical_memory_cleanup(void);
132 phys_addr_t dummy_physical_memory_base(void);
133 void parse_args(int argc, char **argv);
134
135 void test_fail(void);
136 void test_pass(void);
137 void test_print(const char *fmt, ...);
138 void prefix_reset(void);
139 void prefix_push(const char *prefix);
140 void prefix_pop(void);
141
test_pass_pop(void)142 static inline void test_pass_pop(void)
143 {
144 test_pass();
145 prefix_pop();
146 }
147
run_top_down(int (* func)())148 static inline void run_top_down(int (*func)())
149 {
150 memblock_set_bottom_up(false);
151 prefix_push("top-down");
152 func();
153 prefix_pop();
154 }
155
run_bottom_up(int (* func)())156 static inline void run_bottom_up(int (*func)())
157 {
158 memblock_set_bottom_up(true);
159 prefix_push("bottom-up");
160 func();
161 prefix_pop();
162 }
163
assert_mem_content(void * mem,int size,int flags)164 static inline void assert_mem_content(void *mem, int size, int flags)
165 {
166 if (flags & TEST_F_RAW)
167 ASSERT_MEM_NE(mem, 0, size);
168 else
169 ASSERT_MEM_EQ(mem, 0, size);
170 }
171
172 #endif
173