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       1024
  12
  13 #define ARCH_COMMAND_LINE_SIZE  896
  14
  15 #ifdef __KERNEL__
  16
  17 #include <asm/types.h>
  18
  19 #define PARMAREA                0x10400
  20 #define MEMORY_CHUNKS           256
  21
  22 #ifndef __ASSEMBLY__
  23
  24 #ifndef __s390x__
  25 #define IPL_DEVICE        (*(unsigned long *)  (0x10404))
  26 #define INITRD_START      (*(unsigned long *)  (0x1040C))
  27 #define INITRD_SIZE       (*(unsigned long *)  (0x10414))
  28 #else /* __s390x__ */
  29 #define IPL_DEVICE        (*(unsigned long *)  (0x10400))
  30 #define INITRD_START      (*(unsigned long *)  (0x10408))
  31 #define INITRD_SIZE       (*(unsigned long *)  (0x10410))
  32 #endif /* __s390x__ */
  33 #define COMMAND_LINE      ((char *)            (0x10480))
  34
  35 #define CHUNK_READ_WRITE 0
  36 #define CHUNK_READ_ONLY  1
  37
  38 struct mem_chunk {
  39         unsigned long addr;
  40         unsigned long size;
  41         int type;
  42 };
  43
  44 extern struct mem_chunk memory_chunk[];
  45 extern unsigned long real_memory_size;
  46
  47 void detect_memory_layout(struct mem_chunk chunk[]);
  48
  49 #ifdef CONFIG_S390_SWITCH_AMODE
  50 extern unsigned int switch_amode;
  51 #else
  52 #define switch_amode    (0)
  53 #endif
  54
  55 #ifdef CONFIG_S390_EXEC_PROTECT
  56 extern unsigned int s390_noexec;
  57 #else
  58 #define s390_noexec     (0)
  59 #endif
  60
  61 /*
  62  * Machine features detected in head.S
  63  */
  64 extern unsigned long machine_flags;
  65
  66 #define MACHINE_FLAG_VM         (1UL << 0)
  67 #define MACHINE_FLAG_IEEE       (1UL << 1)
  68 #define MACHINE_FLAG_CSP        (1UL << 3)
  69 #define MACHINE_FLAG_MVPG       (1UL << 4)
  70 #define MACHINE_FLAG_DIAG44     (1UL << 5)
  71 #define MACHINE_FLAG_IDTE       (1UL << 6)
  72 #define MACHINE_FLAG_DIAG9C     (1UL << 7)
  73 #define MACHINE_FLAG_MVCOS      (1UL << 8)
  74 #define MACHINE_FLAG_KVM        (1UL << 9)
  75 #define MACHINE_FLAG_HPAGE      (1UL << 10)
  76 #define MACHINE_FLAG_PFMF       (1UL << 11)
  77
  78 #define MACHINE_IS_VM           (machine_flags & MACHINE_FLAG_VM)
  79 #define MACHINE_IS_KVM          (machine_flags & MACHINE_FLAG_KVM)
  80 #define MACHINE_IS_P390         (machine_flags & MACHINE_FLAG_P390)
  81 #define MACHINE_HAS_DIAG9C      (machine_flags & MACHINE_FLAG_DIAG9C)
  82
  83 #ifndef __s390x__
  84 #define MACHINE_HAS_IEEE        (machine_flags & MACHINE_FLAG_IEEE)
  85 #define MACHINE_HAS_CSP         (machine_flags & MACHINE_FLAG_CSP)
  86 #define MACHINE_HAS_IDTE        (0)
  87 #define MACHINE_HAS_DIAG44      (1)
  88 #define MACHINE_HAS_MVPG        (machine_flags & MACHINE_FLAG_MVPG)
  89 #define MACHINE_HAS_MVCOS       (0)
  90 #define MACHINE_HAS_HPAGE       (0)
  91 #define MACHINE_HAS_PFMF        (0)
  92 #else /* __s390x__ */
  93 #define MACHINE_HAS_IEEE        (1)
  94 #define MACHINE_HAS_CSP         (1)
  95 #define MACHINE_HAS_IDTE        (machine_flags & MACHINE_FLAG_IDTE)
  96 #define MACHINE_HAS_DIAG44      (machine_flags & MACHINE_FLAG_DIAG44)
  97 #define MACHINE_HAS_MVPG        (1)
  98 #define MACHINE_HAS_MVCOS       (machine_flags & MACHINE_FLAG_MVCOS)
  99 #define MACHINE_HAS_HPAGE       (machine_flags & MACHINE_FLAG_HPAGE)
 100 #define MACHINE_HAS_PFMF        (machine_flags & MACHINE_FLAG_PFMF)
 101 #endif /* __s390x__ */
 102
 103 #define ZFCPDUMP_HSA_SIZE       (32UL<<20)
 104
 105 /*
 106  * Console mode. Override with conmode=
 107  */
 108 extern unsigned int console_mode;
 109 extern unsigned int console_devno;
 110 extern unsigned int console_irq;
 111
 112 extern char vmhalt_cmd[];
 113 extern char vmpoff_cmd[];
 114
 115 #define CONSOLE_IS_UNDEFINED    (console_mode == 0)
 116 #define CONSOLE_IS_SCLP         (console_mode == 1)
 117 #define CONSOLE_IS_3215         (console_mode == 2)
 118 #define CONSOLE_IS_3270         (console_mode == 3)
 119 #define SET_CONSOLE_SCLP        do { console_mode = 1; } while (0)
 120 #define SET_CONSOLE_3215        do { console_mode = 2; } while (0)
 121 #define SET_CONSOLE_3270        do { console_mode = 3; } while (0)
 122
 123 #define NSS_NAME_SIZE   8
 124 extern char kernel_nss_name[];
 125
 126 #else /* __ASSEMBLY__ */
 127
 128 #ifndef __s390x__
 129 #define IPL_DEVICE        0x10404
 130 #define INITRD_START      0x1040C
 131 #define INITRD_SIZE       0x10414
 132 #else /* __s390x__ */
 133 #define IPL_DEVICE        0x10400
 134 #define INITRD_START      0x10408
 135 #define INITRD_SIZE       0x10410
 136 #endif /* __s390x__ */
 137 #define COMMAND_LINE      0x10480
 138
 139 #endif /* __ASSEMBLY__ */
 140 #endif /* __KERNEL__ */
 141 #endif /* _ASM_S390_SETUP_H */