include/asm-s390/setup.h

   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 #define MEMORY_CHUNKS           16      /* max 0x7fff */
  16
  17 #ifndef __ASSEMBLY__
  18
  19 #ifndef __s390x__
  20 #define IPL_DEVICE        (*(unsigned long *)  (0x10404))
  21 #define INITRD_START      (*(unsigned long *)  (0x1040C))
  22 #define INITRD_SIZE       (*(unsigned long *)  (0x10414))
  23 #else /* __s390x__ */
  24 #define IPL_DEVICE        (*(unsigned long *)  (0x10400))
  25 #define INITRD_START      (*(unsigned long *)  (0x10408))
  26 #define INITRD_SIZE       (*(unsigned long *)  (0x10410))
  27 #endif /* __s390x__ */
  28 #define COMMAND_LINE      ((char *)            (0x10480))
  29
  30 /*
  31  * Machine features detected in head.S
  32  */
  33 extern unsigned long machine_flags;
  34
  35 #define MACHINE_IS_VM           (machine_flags & 1)
  36 #define MACHINE_IS_P390         (machine_flags & 4)
  37 #define MACHINE_HAS_MVPG        (machine_flags & 16)
  38 #define MACHINE_HAS_DIAG44      (machine_flags & 32)
  39 #define MACHINE_HAS_IDTE        (machine_flags & 128)
  40
  41 #ifndef __s390x__
  42 #define MACHINE_HAS_IEEE        (machine_flags & 2)
  43 #define MACHINE_HAS_CSP         (machine_flags & 8)
  44 #else /* __s390x__ */
  45 #define MACHINE_HAS_IEEE        (1)
  46 #define MACHINE_HAS_CSP         (1)
  47 #endif /* __s390x__ */
  48
  49
  50 #define MACHINE_HAS_SCLP        (!MACHINE_IS_P390)
  51
  52 /*
  53  * Console mode. Override with conmode=
  54  */
  55 extern unsigned int console_mode;
  56 extern unsigned int console_devno;
  57 extern unsigned int console_irq;
  58
  59 #define CONSOLE_IS_UNDEFINED    (console_mode == 0)
  60 #define CONSOLE_IS_SCLP         (console_mode == 1)
  61 #define CONSOLE_IS_3215         (console_mode == 2)
  62 #define CONSOLE_IS_3270         (console_mode == 3)
  63 #define SET_CONSOLE_SCLP        do { console_mode = 1; } while (0)
  64 #define SET_CONSOLE_3215        do { console_mode = 2; } while (0)
  65 #define SET_CONSOLE_3270        do { console_mode = 3; } while (0)
  66
  67 #else
  68
  69 #ifndef __s390x__
  70 #define IPL_DEVICE        0x10404
  71 #define INITRD_START      0x1040C
  72 #define INITRD_SIZE       0x10414
  73 #else /* __s390x__ */
  74 #define IPL_DEVICE        0x10400
  75 #define INITRD_START      0x10408
  76 #define INITRD_SIZE       0x10410
  77 #endif /* __s390x__ */
  78 #define COMMAND_LINE      0x10480
  79
  80 #endif
  81
  82 #endif