1e8e338325
Sysfs interface to export ipl device parameters. Dependent on the ipl type the interface will look like this: - ccw ipl: /sys/firmware/ipl/device /ipl_type - fcp ipl: /sys/firmware/ipl/binary_parameter /bootprog /br_lba /device /ipl_type /lun /scp_data /wwpn - otherwise (unknown that is): /sys/firmware/ipl/ipl_type Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
133 lines
3.2 KiB
C
133 lines
3.2 KiB
C
/*
|
|
* 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
|