Linux kernel mirror (for testing)
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linux
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/seq_file.h>
9#include <linux/memblock.h>
10#include <linux/sizes.h>
11#include <linux/printk.h>
12#include <../selftests/kselftest.h>
13
14#define MEM_SIZE SZ_32K
15#define PHYS_MEM_SIZE SZ_16M
16#define NUMA_NODES 8
17
18#define INIT_MEMBLOCK_REGIONS 128
19#define INIT_MEMBLOCK_RESERVED_REGIONS INIT_MEMBLOCK_REGIONS
20
21enum test_flags {
22 /* No special request. */
23 TEST_F_NONE = 0x0,
24 /* Perform raw allocations (no zeroing of memory). */
25 TEST_F_RAW = 0x1,
26 /* Perform allocations on the exact node specified. */
27 TEST_F_EXACT = 0x2
28};
29
30/**
31 * ASSERT_EQ():
32 * Check the condition
33 * @_expected == @_seen
34 * If false, print failed test message (if running with --verbose) and then
35 * assert.
36 */
37#define ASSERT_EQ(_expected, _seen) do { \
38 if ((_expected) != (_seen)) \
39 test_fail(); \
40 assert((_expected) == (_seen)); \
41} while (0)
42
43#define ASSERT_TRUE(_seen) ASSERT_EQ(true, _seen)
44#define ASSERT_FALSE(_seen) ASSERT_EQ(false, _seen)
45
46/**
47 * ASSERT_NE():
48 * Check the condition
49 * @_expected != @_seen
50 * If false, print failed test message (if running with --verbose) and then
51 * assert.
52 */
53#define ASSERT_NE(_expected, _seen) do { \
54 if ((_expected) == (_seen)) \
55 test_fail(); \
56 assert((_expected) != (_seen)); \
57} while (0)
58
59/**
60 * ASSERT_LT():
61 * Check the condition
62 * @_expected < @_seen
63 * If false, print failed test message (if running with --verbose) and then
64 * assert.
65 */
66#define ASSERT_LT(_expected, _seen) do { \
67 if ((_expected) >= (_seen)) \
68 test_fail(); \
69 assert((_expected) < (_seen)); \
70} while (0)
71
72/**
73 * ASSERT_LE():
74 * Check the condition
75 * @_expected <= @_seen
76 * If false, print failed test message (if running with --verbose) and then
77 * assert.
78 */
79#define ASSERT_LE(_expected, _seen) do { \
80 if ((_expected) > (_seen)) \
81 test_fail(); \
82 assert((_expected) <= (_seen)); \
83} while (0)
84
85/**
86 * ASSERT_MEM_EQ():
87 * Check that the first @_size bytes of @_seen are all equal to @_expected.
88 * If false, print failed test message (if running with --verbose) and then
89 * assert.
90 */
91#define ASSERT_MEM_EQ(_seen, _expected, _size) do { \
92 for (int _i = 0; _i < (_size); _i++) { \
93 ASSERT_EQ(((char *)_seen)[_i], (_expected)); \
94 } \
95} while (0)
96
97/**
98 * ASSERT_MEM_NE():
99 * Check that none of the first @_size bytes of @_seen are equal to @_expected.
100 * If false, print failed test message (if running with --verbose) and then
101 * assert.
102 */
103#define ASSERT_MEM_NE(_seen, _expected, _size) do { \
104 for (int _i = 0; _i < (_size); _i++) { \
105 ASSERT_NE(((char *)_seen)[_i], (_expected)); \
106 } \
107} while (0)
108
109#define PREFIX_PUSH() prefix_push(__func__)
110
111/*
112 * Available memory registered with memblock needs to be valid for allocs
113 * test to run. This is a convenience wrapper for memory allocated in
114 * dummy_physical_memory_init() that is later registered with memblock
115 * in setup_memblock().
116 */
117struct test_memory {
118 void *base;
119};
120
121struct region {
122 phys_addr_t base;
123 phys_addr_t size;
124};
125
126static inline phys_addr_t __maybe_unused region_end(struct memblock_region *rgn)
127{
128 return rgn->base + rgn->size;
129}
130
131void reset_memblock_regions(void);
132void reset_memblock_attributes(void);
133void setup_memblock(void);
134void setup_numa_memblock(const unsigned int node_fracs[]);
135void dummy_physical_memory_init(void);
136void dummy_physical_memory_cleanup(void);
137phys_addr_t dummy_physical_memory_base(void);
138void parse_args(int argc, char **argv);
139
140void test_fail(void);
141void test_pass(void);
142void test_print(const char *fmt, ...);
143void prefix_reset(void);
144void prefix_push(const char *prefix);
145void prefix_pop(void);
146
147static inline void test_pass_pop(void)
148{
149 test_pass();
150 prefix_pop();
151}
152
153static inline void run_top_down(int (*func)())
154{
155 memblock_set_bottom_up(false);
156 prefix_push("top-down");
157 func();
158 prefix_pop();
159}
160
161static inline void run_bottom_up(int (*func)())
162{
163 memblock_set_bottom_up(true);
164 prefix_push("bottom-up");
165 func();
166 prefix_pop();
167}
168
169static inline void assert_mem_content(void *mem, int size, int flags)
170{
171 if (flags & TEST_F_RAW)
172 ASSERT_MEM_NE(mem, 0, size);
173 else
174 ASSERT_MEM_EQ(mem, 0, size);
175}
176
177#endif