scsi0_ext 226 arch/mips/include/asm/sgi/hpc3.h volatile u32 scsi0_ext[256]; /* SCSI channel 0 external regs */ scsi0_ext 80 arch/mips/sgi-ip22/ip22-platform.c sgiwd93_0_pd.wdregs = (unsigned char *) hpc3c0->scsi0_ext;