1 // SPDX-License-Identifier: GPL-2.0-only 1 // SPDX-License-Identifier: GPL-2.0-only
2 #include <linux/kernel.h> 2 #include <linux/kernel.h>
3 #include <linux/module.h> 3 #include <linux/module.h>
4 #include <linux/export.h> 4 #include <linux/export.h>
5 #include <linux/mm.h> 5 #include <linux/mm.h>
6 #include <linux/vmalloc.h> 6 #include <linux/vmalloc.h>
7 #include <linux/slab.h> 7 #include <linux/slab.h>
8 #include <linux/sizes.h> 8 #include <linux/sizes.h>
9 #include <linux/io.h> 9 #include <linux/io.h>
10 10
11 #include <asm/page.h> 11 #include <asm/page.h>
12 #ifdef CONFIG_MIPS 12 #ifdef CONFIG_MIPS
13 #include <asm/bootinfo.h> 13 #include <asm/bootinfo.h>
14 #endif 14 #endif
15 15
16 struct foo { 16 struct foo {
17 unsigned int bar; 17 unsigned int bar;
18 }; 18 };
19 19
20 static struct foo *foo; 20 static struct foo *foo;
21 21
22 static int __init test_debug_virtual_init(void 22 static int __init test_debug_virtual_init(void)
23 { 23 {
24 phys_addr_t pa; 24 phys_addr_t pa;
25 void *va; 25 void *va;
26 26
27 va = (void *)VMALLOC_START; 27 va = (void *)VMALLOC_START;
28 pa = virt_to_phys(va); 28 pa = virt_to_phys(va);
29 29
30 pr_info("PA: %pa for VA: 0x%lx\n", &pa 30 pr_info("PA: %pa for VA: 0x%lx\n", &pa, (unsigned long)va);
31 31
32 foo = kzalloc(sizeof(*foo), GFP_KERNEL 32 foo = kzalloc(sizeof(*foo), GFP_KERNEL);
33 if (!foo) 33 if (!foo)
34 return -ENOMEM; 34 return -ENOMEM;
35 35
36 pa = virt_to_phys(foo); 36 pa = virt_to_phys(foo);
37 va = foo; 37 va = foo;
38 pr_info("PA: %pa for VA: 0x%lx\n", &pa 38 pr_info("PA: %pa for VA: 0x%lx\n", &pa, (unsigned long)va);
39 39
40 return 0; 40 return 0;
41 } 41 }
42 module_init(test_debug_virtual_init); 42 module_init(test_debug_virtual_init);
43 43
44 static void __exit test_debug_virtual_exit(voi 44 static void __exit test_debug_virtual_exit(void)
45 { 45 {
46 kfree(foo); 46 kfree(foo);
47 } 47 }
48 module_exit(test_debug_virtual_exit); 48 module_exit(test_debug_virtual_exit);
49 49
50 MODULE_LICENSE("GPL"); 50 MODULE_LICENSE("GPL");
51 MODULE_DESCRIPTION("Test module for CONFIG_DEB 51 MODULE_DESCRIPTION("Test module for CONFIG_DEBUG_VIRTUAL");
52 52
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