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