__phys_addr 40 arch/x86/include/asm/page.h #define __pa(x) __phys_addr((unsigned long)(x)) __phys_addr 10 arch/x86/include/asm/page_32.h extern unsigned long __phys_addr(unsigned long); __phys_addr 14 arch/x86/include/asm/page_32.h #define __phys_addr_symbol(x) __phys_addr(x) __phys_addr 23 arch/x86/include/asm/page_64.h extern unsigned long __phys_addr(unsigned long);