1/* 2 * include/asm-s390/setup.h 3 * 4 * S390 version 5 * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation 6 */ 7 8#ifndef _ASM_S390_SETUP_H 9#define _ASM_S390_SETUP_H 10 11#define PARMAREA 0x10400 12#define COMMAND_LINE_SIZE 896 13#define RAMDISK_ORIGIN 0x800000 14#define RAMDISK_SIZE 0x800000 15 16#ifndef __ASSEMBLY__ 17 18#define IPL_DEVICE (*(unsigned long *) (0x10400)) 19#define INITRD_START (*(unsigned long *) (0x10408)) 20#define INITRD_SIZE (*(unsigned long *) (0x10410)) 21#define COMMAND_LINE ((char *) (0x10480)) 22 23/* 24 * Machine features detected in head.S 25 */ 26extern unsigned long machine_flags; 27 28#define MACHINE_IS_VM (machine_flags & 1) 29#define MACHINE_IS_P390 (machine_flags & 4) 30#define MACHINE_HAS_MVPG (machine_flags & 16) 31#define MACHINE_HAS_DIAG44 (machine_flags & 32) 32 33#define MACHINE_HAS_HWC (!MACHINE_IS_P390) 34 35/* 36 * Console mode. Override with conmode= 37 */ 38extern unsigned int console_mode; 39extern unsigned int console_device; 40 41#define CONSOLE_IS_UNDEFINED (console_mode == 0) 42#define CONSOLE_IS_HWC (console_mode == 1) 43#define CONSOLE_IS_3215 (console_mode == 2) 44#define CONSOLE_IS_3270 (console_mode == 3) 45#define SET_CONSOLE_HWC do { console_mode = 1; } while (0) 46#define SET_CONSOLE_3215 do { console_mode = 2; } while (0) 47#define SET_CONSOLE_3270 do { console_mode = 3; } while (0) 48 49#else 50 51#define IPL_DEVICE 0x10400 52#define INITRD_START 0x10408 53#define INITRD_SIZE 0x10410 54#define COMMAND_LINE 0x10480 55 56#endif 57 58#endif 59