1 | // SPDX-License-Identifier: GPL-2.0 |
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2 | #include <linux/bug.h> |
3 | #include <linux/export.h> |
4 | #include <linux/types.h> |
5 | #include <linux/mmdebug.h> |
6 | #include <linux/mm.h> |
7 | |
8 | #include <asm/memory.h> |
9 | |
10 | phys_addr_t __virt_to_phys(unsigned long x) |
11 | { |
12 | WARN(!__is_lm_address(__tag_reset(x)), |
13 | "virt_to_phys used for non-linear address: %pK (%pS)\n", |
14 | (void *)x, |
15 | (void *)x); |
16 | |
17 | return __virt_to_phys_nodebug(x); |
18 | } |
19 | EXPORT_SYMBOL(__virt_to_phys); |
20 | |
21 | phys_addr_t __phys_addr_symbol(unsigned long x) |
22 | { |
23 | /* |
24 | * This is bounds checking against the kernel image only. |
25 | * __pa_symbol should only be used on kernel symbol addresses. |
26 | */ |
27 | VIRTUAL_BUG_ON(x < (unsigned long) KERNEL_START || |
28 | x > (unsigned long) KERNEL_END); |
29 | return __pa_symbol_nodebug(x); |
30 | } |
31 | EXPORT_SYMBOL(__phys_addr_symbol); |
32 |