1 // SPDX-License-Identifier: GPL-2.0 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