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