machine_btop
#define machine_btop(x) mips_btop(MIPS_KSEG1_TO_PHYS(x))
#define machine_btop(x) alpha_btop(ALPHA_K0SEG_TO_PHYS(x))
#define machine_btop(x) mips_btop(MIPS_KSEG1_TO_PHYS(x))
#define machine_btop(x) alpha_btop(ALPHA_K0SEG_TO_PHYS(x))
#define machine_btop(x) mips_btop(MIPS_KSEG1_TO_PHYS(x))
#define machine_btop(x) alpha_btop(ALPHA_K0SEG_TO_PHYS(x))
#define machine_btop(x) mips_btop(MIPS_KSEG1_TO_PHYS(x))
#define machine_btop(x) alpha_btop(ALPHA_K0SEG_TO_PHYS(x))
#define machine_btop(x) mips_btop(x)
#define machine_btop(x) alpha_btop(x)
#define machine_btop(x) mips_btop(MIPS_KSEG1_TO_PHYS(x))
#define machine_btop(x) alpha_btop(ALPHA_K0SEG_TO_PHYS(x))