arch/s390/include/asm/setup.h

   1 /*
   2  *  include/asm-s390/setup.h
   3  *
   4  *  S390 version
   5  *    Copyright IBM Corp. 1999,2010
   6  */
   7
   8 #ifndef _ASM_S390_SETUP_H
   9 #define _ASM_S390_SETUP_H
  10
  11 #define COMMAND_LINE_SIZE       4096
  12
  13 #define ARCH_COMMAND_LINE_SIZE  896
  14
  15 #ifdef __KERNEL__
  16
  17 #define PARMAREA                0x10400
  18 #define MEMORY_CHUNKS           256
  19
  20 #ifndef __ASSEMBLY__
  21
  22 #include <asm/lowcore.h>
  23 #include <asm/types.h>
  24
  25 #ifndef __s390x__
  26 #define IPL_DEVICE        (*(unsigned long *)  (0x10404))
  27 #define INITRD_START      (*(unsigned long *)  (0x1040C))
  28 #define INITRD_SIZE       (*(unsigned long *)  (0x10414))
  29 #else /* __s390x__ */
  30 #define IPL_DEVICE        (*(unsigned long *)  (0x10400))
  31 #define INITRD_START      (*(unsigned long *)  (0x10408))
  32 #define INITRD_SIZE       (*(unsigned long *)  (0x10410))
  33 #endif /* __s390x__ */
  34 #define COMMAND_LINE      ((char *)            (0x10480))
  35
  36 #define CHUNK_READ_WRITE 0
  37 #define CHUNK_READ_ONLY  1
  38
  39 struct mem_chunk {
  40         unsigned long addr;
  41         unsigned long size;
  42         int type;
  43 };
  44
  45 extern struct mem_chunk memory_chunk[];
  46 extern unsigned long real_memory_size;
  47 extern int memory_end_set;
  48 extern unsigned long memory_end;
  49
  50 void detect_memory_layout(struct mem_chunk chunk[]);
  51
  52 #define PRIMARY_SPACE_MODE      0
  53 #define ACCESS_REGISTER_MODE    1
  54 #define SECONDARY_SPACE_MODE    2
  55 #define HOME_SPACE_MODE         3
  56
  57 extern unsigned int user_mode;
  58
  59 /*
  60  * Machine features detected in head.S
  61  */
  62
  63 #define MACHINE_FLAG_VM         (1UL << 0)
  64 #define MACHINE_FLAG_IEEE       (1UL << 1)
  65 #define MACHINE_FLAG_CSP        (1UL << 3)
  66 #define MACHINE_FLAG_MVPG       (1UL << 4)
  67 #define MACHINE_FLAG_DIAG44     (1UL << 5)
  68 #define MACHINE_FLAG_IDTE       (1UL << 6)
  69 #define MACHINE_FLAG_DIAG9C     (1UL << 7)
  70 #define MACHINE_FLAG_MVCOS      (1UL << 8)
  71 #define MACHINE_FLAG_KVM        (1UL << 9)
  72 #define MACHINE_FLAG_HPAGE      (1UL << 10)
  73 #define MACHINE_FLAG_PFMF       (1UL << 11)
  74 #define MACHINE_FLAG_LPAR       (1UL << 12)
  75 #define MACHINE_FLAG_SPP        (1UL << 13)
  76 #define MACHINE_FLAG_TOPOLOGY   (1UL << 14)
  77
  78 #define MACHINE_IS_VM           (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
  79 #define MACHINE_IS_KVM          (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
  80 #define MACHINE_IS_LPAR         (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
  81
  82 #define MACHINE_HAS_DIAG9C      (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
  83
  84 #ifndef __s390x__
  85 #define MACHINE_HAS_IEEE        (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE)
  86 #define MACHINE_HAS_CSP         (S390_lowcore.machine_flags & MACHINE_FLAG_CSP)
  87 #define MACHINE_HAS_IDTE        (0)
  88 #define MACHINE_HAS_DIAG44      (1)
  89 #define MACHINE_HAS_MVPG        (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG)
  90 #define MACHINE_HAS_MVCOS       (0)
  91 #define MACHINE_HAS_HPAGE       (0)
  92 #define MACHINE_HAS_PFMF        (0)
  93 #define MACHINE_HAS_SPP         (0)
  94 #define MACHINE_HAS_TOPOLOGY    (0)
  95 #else /* __s390x__ */
  96 #define MACHINE_HAS_IEEE        (1)
  97 #define MACHINE_HAS_CSP         (1)
  98 #define MACHINE_HAS_IDTE        (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
  99 #define MACHINE_HAS_DIAG44      (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
 100 #define MACHINE_HAS_MVPG        (1)
 101 #define MACHINE_HAS_MVCOS       (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
 102 #define MACHINE_HAS_HPAGE       (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE)
 103 #define MACHINE_HAS_PFMF        (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
 104 #define MACHINE_HAS_SPP         (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
 105 #define MACHINE_HAS_TOPOLOGY    (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
 106 #endif /* __s390x__ */
 107
 108 #define ZFCPDUMP_HSA_SIZE       (32UL<<20)
 109
 110 /*
 111  * Console mode. Override with conmode=
 112  */
 113 extern unsigned int console_mode;
 114 extern unsigned int console_devno;
 115 extern unsigned int console_irq;
 116
 117 extern char vmhalt_cmd[];
 118 extern char vmpoff_cmd[];
 119
 120 #define CONSOLE_IS_UNDEFINED    (console_mode == 0)
 121 #define CONSOLE_IS_SCLP         (console_mode == 1)
 122 #define CONSOLE_IS_3215         (console_mode == 2)
 123 #define CONSOLE_IS_3270         (console_mode == 3)
 124 #define SET_CONSOLE_SCLP        do { console_mode = 1; } while (0)
 125 #define SET_CONSOLE_3215        do { console_mode = 2; } while (0)
 126 #define SET_CONSOLE_3270        do { console_mode = 3; } while (0)
 127
 128 #define NSS_NAME_SIZE   8
 129 extern char kernel_nss_name[];
 130
 131 #else /* __ASSEMBLY__ */
 132
 133 #ifndef __s390x__
 134 #define IPL_DEVICE        0x10404
 135 #define INITRD_START      0x1040C
 136 #define INITRD_SIZE       0x10414
 137 #else /* __s390x__ */
 138 #define IPL_DEVICE        0x10400
 139 #define INITRD_START      0x10408
 140 #define INITRD_SIZE       0x10410
 141 #endif /* __s390x__ */
 142 #define COMMAND_LINE      0x10480
 143
 144 #endif /* __ASSEMBLY__ */
 145 #endif /* __KERNEL__ */
 146 #endif /* _ASM_S390_SETUP_H */