setup.h

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/*
 *  S390 version
 *    Copyright IBM Corp. 1999, 2010
 */
#ifndef _ASM_S390_SETUP_H
#define _ASM_S390_SETUP_H

#include <uapi/asm/setup.h>


#define PARMAREA        0x10400
#define MEMORY_CHUNKS       256

#ifndef __ASSEMBLY__

#include <asm/lowcore.h>
#include <asm/types.h>

#ifndef CONFIG_64BIT
#define IPL_DEVICE        (*(unsigned long *)  (0x10404))
#define INITRD_START      (*(unsigned long *)  (0x1040C))
#define INITRD_SIZE       (*(unsigned long *)  (0x10414))
#define OLDMEM_BASE   (*(unsigned long *)  (0x1041C))
#define OLDMEM_SIZE   (*(unsigned long *)  (0x10424))
#else /* CONFIG_64BIT */
#define IPL_DEVICE        (*(unsigned long *)  (0x10400))
#define INITRD_START      (*(unsigned long *)  (0x10408))
#define INITRD_SIZE       (*(unsigned long *)  (0x10410))
#define OLDMEM_BASE   (*(unsigned long *)  (0x10418))
#define OLDMEM_SIZE   (*(unsigned long *)  (0x10420))
#endif /* CONFIG_64BIT */
#define COMMAND_LINE      ((char *)            (0x10480))

#define CHUNK_READ_WRITE 0
#define CHUNK_READ_ONLY  1
#define CHUNK_OLDMEM     4
#define CHUNK_CRASHK     5

struct mem_chunk {
    unsigned long addr;
    unsigned long size;
    int type;
};

extern struct mem_chunk memory_chunk[];
extern unsigned long real_memory_size;
extern int memory_end_set;
extern unsigned long memory_end;

void detect_memory_layout(struct mem_chunk chunk[]);
void create_mem_hole(struct mem_chunk memory_chunk[], unsigned long addr,
             unsigned long size, int type);

#define PRIMARY_SPACE_MODE  0
#define ACCESS_REGISTER_MODE    1
#define SECONDARY_SPACE_MODE    2
#define HOME_SPACE_MODE     3

extern unsigned int s390_user_mode;

/*
 * Machine features detected in head.S
 */

#define MACHINE_FLAG_VM     (1UL << 0)
#define MACHINE_FLAG_IEEE   (1UL << 1)
#define MACHINE_FLAG_CSP    (1UL << 3)
#define MACHINE_FLAG_MVPG   (1UL << 4)
#define MACHINE_FLAG_DIAG44 (1UL << 5)
#define MACHINE_FLAG_IDTE   (1UL << 6)
#define MACHINE_FLAG_DIAG9C (1UL << 7)
#define MACHINE_FLAG_MVCOS  (1UL << 8)
#define MACHINE_FLAG_KVM    (1UL << 9)
#define MACHINE_FLAG_EDAT1  (1UL << 10)
#define MACHINE_FLAG_EDAT2  (1UL << 11)
#define MACHINE_FLAG_LPAR   (1UL << 12)
#define MACHINE_FLAG_SPP    (1UL << 13)
#define MACHINE_FLAG_TOPOLOGY   (1UL << 14)
#define MACHINE_FLAG_TE     (1UL << 15)
#define MACHINE_FLAG_RRBM   (1UL << 16)

#define MACHINE_IS_VM       (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
#define MACHINE_IS_KVM      (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
#define MACHINE_IS_LPAR     (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)

#define MACHINE_HAS_DIAG9C  (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
#define MACHINE_HAS_PFMF    MACHINE_HAS_EDAT1
#define MACHINE_HAS_HPAGE   MACHINE_HAS_EDAT1

#ifndef CONFIG_64BIT
#define MACHINE_HAS_IEEE    (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE)
#define MACHINE_HAS_CSP     (S390_lowcore.machine_flags & MACHINE_FLAG_CSP)
#define MACHINE_HAS_IDTE    (0)
#define MACHINE_HAS_DIAG44  (1)
#define MACHINE_HAS_MVPG    (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG)
#define MACHINE_HAS_MVCOS   (0)
#define MACHINE_HAS_EDAT1   (0)
#define MACHINE_HAS_EDAT2   (0)
#define MACHINE_HAS_SPP     (0)
#define MACHINE_HAS_TOPOLOGY    (0)
#define MACHINE_HAS_TE      (0)
#define MACHINE_HAS_RRBM    (0)
#else /* CONFIG_64BIT */
#define MACHINE_HAS_IEEE    (1)
#define MACHINE_HAS_CSP     (1)
#define MACHINE_HAS_IDTE    (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
#define MACHINE_HAS_DIAG44  (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
#define MACHINE_HAS_MVPG    (1)
#define MACHINE_HAS_MVCOS   (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
#define MACHINE_HAS_EDAT1   (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1)
#define MACHINE_HAS_EDAT2   (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2)
#define MACHINE_HAS_SPP     (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
#define MACHINE_HAS_TOPOLOGY    (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
#define MACHINE_HAS_TE      (S390_lowcore.machine_flags & MACHINE_FLAG_TE)
#define MACHINE_HAS_RRBM    (S390_lowcore.machine_flags & MACHINE_FLAG_RRBM)
#endif /* CONFIG_64BIT */

#define ZFCPDUMP_HSA_SIZE   (32UL<<20)
#define ZFCPDUMP_HSA_SIZE_MAX   (64UL<<20)

/*
 * Console mode. Override with conmode=
 */
extern unsigned int console_mode;
extern unsigned int console_devno;
extern unsigned int console_irq;

extern char vmhalt_cmd[];
extern char vmpoff_cmd[];

#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)

#define NSS_NAME_SIZE   8
extern char kernel_nss_name[];

#ifdef CONFIG_PFAULT
extern int pfault_init(void);
extern void pfault_fini(void);
#else /* CONFIG_PFAULT */
#define pfault_init()       ({-1;})
#define pfault_fini()       do { } while (0)
#endif /* CONFIG_PFAULT */

extern void cmma_init(void);

extern void (*_machine_restart)(char *command);
extern void (*_machine_halt)(void);
extern void (*_machine_power_off)(void);

#else /* __ASSEMBLY__ */

#ifndef CONFIG_64BIT
#define IPL_DEVICE        0x10404
#define INITRD_START      0x1040C
#define INITRD_SIZE       0x10414
#define OLDMEM_BASE   0x1041C
#define OLDMEM_SIZE   0x10424
#else /* CONFIG_64BIT */
#define IPL_DEVICE        0x10400
#define INITRD_START      0x10408
#define INITRD_SIZE       0x10410
#define OLDMEM_BASE   0x10418
#define OLDMEM_SIZE   0x10420
#endif /* CONFIG_64BIT */
#define COMMAND_LINE      0x10480

#endif /* __ASSEMBLY__ */
#endif /* _ASM_S390_SETUP_H */