/* * include/asm-s390/setup.h * * S390 version * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation */ #ifndef _ASM_S390_SETUP_H #define _ASM_S390_SETUP_H #include <asm/types.h> #define PARMAREA 0x10400 #define COMMAND_LINE_SIZE 896 #define RAMDISK_ORIGIN 0x800000 #define RAMDISK_SIZE 0x800000 #define MEMORY_CHUNKS 16 /* max 0x7fff */ #define IPL_PARMBLOCK_ORIGIN 0x2000 #ifndef __ASSEMBLY__ #ifndef __s390x__ #define IPL_DEVICE (*(unsigned long *) (0x10404)) #define INITRD_START (*(unsigned long *) (0x1040C)) #define INITRD_SIZE (*(unsigned long *) (0x10414)) #else /* __s390x__ */ #define IPL_DEVICE (*(unsigned long *) (0x10400)) #define INITRD_START (*(unsigned long *) (0x10408)) #define INITRD_SIZE (*(unsigned long *) (0x10410)) #endif /* __s390x__ */ #define COMMAND_LINE ((char *) (0x10480)) /* * Machine features detected in head.S */ extern unsigned long machine_flags; #define MACHINE_IS_VM (machine_flags & 1) #define MACHINE_IS_P390 (machine_flags & 4) #define MACHINE_HAS_MVPG (machine_flags & 16) #define MACHINE_HAS_DIAG44 (machine_flags & 32) #define MACHINE_HAS_IDTE (machine_flags & 128) #ifndef __s390x__ #define MACHINE_HAS_IEEE (machine_flags & 2) #define MACHINE_HAS_CSP (machine_flags & 8) #else /* __s390x__ */ #define MACHINE_HAS_IEEE (1) #define MACHINE_HAS_CSP (1) #endif /* __s390x__ */ #define MACHINE_HAS_SCLP (!MACHINE_IS_P390) /* * Console mode. Override with conmode= */ extern unsigned int console_mode; extern unsigned int console_devno; extern unsigned int console_irq; #define CONSOLE_IS_UNDEFINED (console_mode == 0) #define CONSOLE_IS_SCLP (console_mode == 1) #define CONSOLE_IS_3215 (console_mode == 2) #define CONSOLE_IS_3270 (console_mode == 3) #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0) #define SET_CONSOLE_3215 do { console_mode = 2; } while (0) #define SET_CONSOLE_3270 do { console_mode = 3; } while (0) struct ipl_list_header { u32 length; u8 reserved[3]; u8 version; } __attribute__((packed)); struct ipl_block_fcp { u32 length; u8 pbt; u8 reserved1[322-1]; u16 devno; u8 reserved2[4]; u64 wwpn; u64 lun; u32 bootprog; u8 reserved3[12]; u64 br_lba; u32 scp_data_len; u8 reserved4[260]; u8 scp_data[]; } __attribute__((packed)); struct ipl_parameter_block { union { u32 length; struct ipl_list_header header; } hdr; struct ipl_block_fcp fcp; } __attribute__((packed)); #define IPL_MAX_SUPPORTED_VERSION (0) #define IPL_TYPE_FCP (0) /* * IPL validity flags and parameters as detected in head.S */ extern u32 ipl_parameter_flags; extern u16 ipl_devno; #define IPL_DEVNO_VALID (ipl_parameter_flags & 1) #define IPL_PARMBLOCK_VALID (ipl_parameter_flags & 2) #define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \ IPL_PARMBLOCK_ORIGIN) #define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.length) #else #ifndef __s390x__ #define IPL_DEVICE 0x10404 #define INITRD_START 0x1040C #define INITRD_SIZE 0x10414 #else /* __s390x__ */ #define IPL_DEVICE 0x10400 #define INITRD_START 0x10408 #define INITRD_SIZE 0x10410 #endif /* __s390x__ */ #define COMMAND_LINE 0x10480 #endif #endif