include/asm-s390/setup.h

   1 /*
   2  *  include/asm-s390/setup.h
   3  *
   4  *  S390 version
   5  *    Copyright IBM Corp. 1999,2006
   6  */
   7
   8 #ifndef _ASM_S390_SETUP_H
   9 #define _ASM_S390_SETUP_H
  10
  11 #define COMMAND_LINE_SIZE       896
  12
  13 #ifdef __KERNEL__
  14
  15 #include <asm/types.h>
  16
  17 #define PARMAREA                0x10400
  18 #define MEMORY_CHUNKS           16      /* max 0x7fff */
  19
  20 #ifndef __ASSEMBLY__
  21
  22 #ifndef __s390x__
  23 #define IPL_DEVICE        (*(unsigned long *)  (0x10404))
  24 #define INITRD_START      (*(unsigned long *)  (0x1040C))
  25 #define INITRD_SIZE       (*(unsigned long *)  (0x10414))
  26 #else /* __s390x__ */
  27 #define IPL_DEVICE        (*(unsigned long *)  (0x10400))
  28 #define INITRD_START      (*(unsigned long *)  (0x10408))
  29 #define INITRD_SIZE       (*(unsigned long *)  (0x10410))
  30 #endif /* __s390x__ */
  31 #define COMMAND_LINE      ((char *)            (0x10480))
  32
  33 #define CHUNK_READ_WRITE 0
  34 #define CHUNK_READ_ONLY  1
  35
  36 struct mem_chunk {
  37         unsigned long addr;
  38         unsigned long size;
  39         unsigned long type;
  40 };
  41
  42 extern struct mem_chunk memory_chunk[];
  43 extern unsigned long real_memory_size;
  44
  45 #ifdef CONFIG_S390_SWITCH_AMODE
  46 extern unsigned int switch_amode;
  47 #else
  48 #define switch_amode    (0)
  49 #endif
  50
  51 #ifdef CONFIG_S390_EXEC_PROTECT
  52 extern unsigned int s390_noexec;
  53 #else
  54 #define s390_noexec     (0)
  55 #endif
  56
  57 /*
  58  * Machine features detected in head.S
  59  */
  60 extern unsigned long machine_flags;
  61
  62 #define MACHINE_IS_VM           (machine_flags & 1)
  63 #define MACHINE_IS_P390         (machine_flags & 4)
  64 #define MACHINE_HAS_MVPG        (machine_flags & 16)
  65 #define MACHINE_HAS_IDTE        (machine_flags & 128)
  66 #define MACHINE_HAS_DIAG9C      (machine_flags & 256)
  67
  68 #ifndef __s390x__
  69 #define MACHINE_HAS_IEEE        (machine_flags & 2)
  70 #define MACHINE_HAS_CSP         (machine_flags & 8)
  71 #define MACHINE_HAS_DIAG44      (1)
  72 #define MACHINE_HAS_MVCOS       (0)
  73 #else /* __s390x__ */
  74 #define MACHINE_HAS_IEEE        (1)
  75 #define MACHINE_HAS_CSP         (1)
  76 #define MACHINE_HAS_DIAG44      (machine_flags & 32)
  77 #define MACHINE_HAS_MVCOS       (machine_flags & 512)
  78 #endif /* __s390x__ */
  79
  80 #define MACHINE_HAS_SCLP        (!MACHINE_IS_P390)
  81 #define ZFCPDUMP_HSA_SIZE       (32UL<<20)
  82
  83 /*
  84  * Console mode. Override with conmode=
  85  */
  86 extern unsigned int console_mode;
  87 extern unsigned int console_devno;
  88 extern unsigned int console_irq;
  89
  90 extern char vmhalt_cmd[];
  91 extern char vmpoff_cmd[];
  92
  93 #define CONSOLE_IS_UNDEFINED    (console_mode == 0)
  94 #define CONSOLE_IS_SCLP         (console_mode == 1)
  95 #define CONSOLE_IS_3215         (console_mode == 2)
  96 #define CONSOLE_IS_3270         (console_mode == 3)
  97 #define SET_CONSOLE_SCLP        do { console_mode = 1; } while (0)
  98 #define SET_CONSOLE_3215        do { console_mode = 2; } while (0)
  99 #define SET_CONSOLE_3270        do { console_mode = 3; } while (0)
 100
 101 #define NSS_NAME_SIZE   8
 102 extern char kernel_nss_name[];
 103
 104 #else /* __ASSEMBLY__ */
 105
 106 #ifndef __s390x__
 107 #define IPL_DEVICE        0x10404
 108 #define INITRD_START      0x1040C
 109 #define INITRD_SIZE       0x10414
 110 #else /* __s390x__ */
 111 #define IPL_DEVICE        0x10400
 112 #define INITRD_START      0x10408
 113 #define INITRD_SIZE       0x10410
 114 #endif /* __s390x__ */
 115 #define COMMAND_LINE      0x10480
 116
 117 #endif /* __ASSEMBLY__ */
 118 #endif /* __KERNEL__ */
 119 #endif /* _ASM_S390_SETUP_H */