arch/s390/include/asm/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/lowcore.h>
  18 #include <asm/types.h>
  19
  20 #define PARMAREA                0x10400
  21 #define MEMORY_CHUNKS           256
  22
  23 #ifndef __ASSEMBLY__
  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 #ifdef CONFIG_S390_SWITCH_AMODE
  53 extern unsigned int switch_amode;
  54 #else
  55 #define switch_amode    (0)
  56 #endif
  57
  58 #ifdef CONFIG_S390_EXEC_PROTECT
  59 extern unsigned int s390_noexec;
  60 #else
  61 #define s390_noexec     (0)
  62 #endif
  63
  64 /*
  65  * Machine features detected in head.S
  66  */
  67
  68 #define MACHINE_FLAG_VM         (1UL << 0)
  69 #define MACHINE_FLAG_IEEE       (1UL << 1)
  70 #define MACHINE_FLAG_CSP        (1UL << 3)
  71 #define MACHINE_FLAG_MVPG       (1UL << 4)
  72 #define MACHINE_FLAG_DIAG44     (1UL << 5)
  73 #define MACHINE_FLAG_IDTE       (1UL << 6)
  74 #define MACHINE_FLAG_DIAG9C     (1UL << 7)
  75 #define MACHINE_FLAG_MVCOS      (1UL << 8)
  76 #define MACHINE_FLAG_KVM        (1UL << 9)
  77 #define MACHINE_FLAG_HPAGE      (1UL << 10)
  78 #define MACHINE_FLAG_PFMF       (1UL << 11)
  79
  80 #define MACHINE_IS_VM           (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
  81 #define MACHINE_IS_KVM          (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
  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 #else /* __s390x__ */
  94 #define MACHINE_HAS_IEEE        (1)
  95 #define MACHINE_HAS_CSP         (1)
  96 #define MACHINE_HAS_IDTE        (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
  97 #define MACHINE_HAS_DIAG44      (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
  98 #define MACHINE_HAS_MVPG        (1)
  99 #define MACHINE_HAS_MVCOS       (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
 100 #define MACHINE_HAS_HPAGE       (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE)
 101 #define MACHINE_HAS_PFMF        (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
 102 #endif /* __s390x__ */
 103
 104 #define ZFCPDUMP_HSA_SIZE       (32UL<<20)
 105
 106 /*
 107  * Console mode. Override with conmode=
 108  */
 109 extern unsigned int console_mode;
 110 extern unsigned int console_devno;
 111 extern unsigned int console_irq;
 112
 113 extern char vmhalt_cmd[];
 114 extern char vmpoff_cmd[];
 115
 116 #define CONSOLE_IS_UNDEFINED    (console_mode == 0)
 117 #define CONSOLE_IS_SCLP         (console_mode == 1)
 118 #define CONSOLE_IS_3215         (console_mode == 2)
 119 #define CONSOLE_IS_3270         (console_mode == 3)
 120 #define SET_CONSOLE_SCLP        do { console_mode = 1; } while (0)
 121 #define SET_CONSOLE_3215        do { console_mode = 2; } while (0)
 122 #define SET_CONSOLE_3270        do { console_mode = 3; } while (0)
 123
 124 #define NSS_NAME_SIZE   8
 125 extern char kernel_nss_name[];
 126
 127 #else /* __ASSEMBLY__ */
 128
 129 #ifndef __s390x__
 130 #define IPL_DEVICE        0x10404
 131 #define INITRD_START      0x1040C
 132 #define INITRD_SIZE       0x10414
 133 #else /* __s390x__ */
 134 #define IPL_DEVICE        0x10400
 135 #define INITRD_START      0x10408
 136 #define INITRD_SIZE       0x10410
 137 #endif /* __s390x__ */
 138 #define COMMAND_LINE      0x10480
 139
 140 #endif /* __ASSEMBLY__ */
 141 #endif /* __KERNEL__ */
 142 #endif /* _ASM_S390_SETUP_H */