arch/s390/include/asm/setup.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *  S390 version
   4  *    Copyright IBM Corp. 1999, 2010
   5  */
   6 #ifndef _ASM_S390_SETUP_H
   7 #define _ASM_S390_SETUP_H
   8
   9 #include <linux/const.h>
  10 #include <uapi/asm/setup.h>
  11
  12
  13 #define PARMAREA                0x10400
  14
  15 /*
  16  * Machine features detected in early.c
  17  */
  18
  19 #define MACHINE_FLAG_VM         _BITUL(0)
  20 #define MACHINE_FLAG_KVM        _BITUL(1)
  21 #define MACHINE_FLAG_LPAR       _BITUL(2)
  22 #define MACHINE_FLAG_DIAG9C     _BITUL(3)
  23 #define MACHINE_FLAG_ESOP       _BITUL(4)
  24 #define MACHINE_FLAG_IDTE       _BITUL(5)
  25 #define MACHINE_FLAG_DIAG44     _BITUL(6)
  26 #define MACHINE_FLAG_EDAT1      _BITUL(7)
  27 #define MACHINE_FLAG_EDAT2      _BITUL(8)
  28 #define MACHINE_FLAG_LPP        _BITUL(9)
  29 #define MACHINE_FLAG_TOPOLOGY   _BITUL(10)
  30 #define MACHINE_FLAG_TE         _BITUL(11)
  31 #define MACHINE_FLAG_TLB_LC     _BITUL(12)
  32 #define MACHINE_FLAG_VX         _BITUL(13)
  33 #define MACHINE_FLAG_TLB_GUEST  _BITUL(14)
  34 #define MACHINE_FLAG_NX         _BITUL(15)
  35 #define MACHINE_FLAG_GS         _BITUL(16)
  36 #define MACHINE_FLAG_SCC        _BITUL(17)
  37
  38 #define LPP_MAGIC               _BITUL(31)
  39 #define LPP_PFAULT_PID_MASK     _AC(0xffffffff, UL)
  40
  41 #ifndef __ASSEMBLY__
  42
  43 #include <asm/lowcore.h>
  44 #include <asm/types.h>
  45
  46 #define IPL_DEVICE        (*(unsigned long *)  (0x10400))
  47 #define INITRD_START      (*(unsigned long *)  (0x10408))
  48 #define INITRD_SIZE       (*(unsigned long *)  (0x10410))
  49 #define OLDMEM_BASE       (*(unsigned long *)  (0x10418))
  50 #define OLDMEM_SIZE       (*(unsigned long *)  (0x10420))
  51 #define COMMAND_LINE      ((char *)            (0x10480))
  52
  53 extern int memory_end_set;
  54 extern unsigned long memory_end;
  55 extern unsigned long max_physmem_end;
  56
  57 extern void detect_memory_memblock(void);
  58
  59 #define MACHINE_IS_VM           (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
  60 #define MACHINE_IS_KVM          (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
  61 #define MACHINE_IS_LPAR         (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
  62
  63 #define MACHINE_HAS_DIAG9C      (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
  64 #define MACHINE_HAS_ESOP        (S390_lowcore.machine_flags & MACHINE_FLAG_ESOP)
  65 #define MACHINE_HAS_IDTE        (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
  66 #define MACHINE_HAS_DIAG44      (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
  67 #define MACHINE_HAS_EDAT1       (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1)
  68 #define MACHINE_HAS_EDAT2       (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2)
  69 #define MACHINE_HAS_LPP         (S390_lowcore.machine_flags & MACHINE_FLAG_LPP)
  70 #define MACHINE_HAS_TOPOLOGY    (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
  71 #define MACHINE_HAS_TE          (S390_lowcore.machine_flags & MACHINE_FLAG_TE)
  72 #define MACHINE_HAS_TLB_LC      (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC)
  73 #define MACHINE_HAS_VX          (S390_lowcore.machine_flags & MACHINE_FLAG_VX)
  74 #define MACHINE_HAS_TLB_GUEST   (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_GUEST)
  75 #define MACHINE_HAS_NX          (S390_lowcore.machine_flags & MACHINE_FLAG_NX)
  76 #define MACHINE_HAS_GS          (S390_lowcore.machine_flags & MACHINE_FLAG_GS)
  77 #define MACHINE_HAS_SCC         (S390_lowcore.machine_flags & MACHINE_FLAG_SCC)
  78
  79 /*
  80  * Console mode. Override with conmode=
  81  */
  82 extern unsigned int console_mode;
  83 extern unsigned int console_devno;
  84 extern unsigned int console_irq;
  85
  86 extern char vmhalt_cmd[];
  87 extern char vmpoff_cmd[];
  88
  89 #define CONSOLE_IS_UNDEFINED    (console_mode == 0)
  90 #define CONSOLE_IS_SCLP         (console_mode == 1)
  91 #define CONSOLE_IS_3215         (console_mode == 2)
  92 #define CONSOLE_IS_3270         (console_mode == 3)
  93 #define CONSOLE_IS_VT220        (console_mode == 4)
  94 #define CONSOLE_IS_HVC          (console_mode == 5)
  95 #define SET_CONSOLE_SCLP        do { console_mode = 1; } while (0)
  96 #define SET_CONSOLE_3215        do { console_mode = 2; } while (0)
  97 #define SET_CONSOLE_3270        do { console_mode = 3; } while (0)
  98 #define SET_CONSOLE_VT220       do { console_mode = 4; } while (0)
  99 #define SET_CONSOLE_HVC         do { console_mode = 5; } while (0)
 100
 101 #define NSS_NAME_SIZE   8
 102 extern char kernel_nss_name[];
 103
 104 #ifdef CONFIG_PFAULT
 105 extern int pfault_init(void);
 106 extern void pfault_fini(void);
 107 #else /* CONFIG_PFAULT */
 108 #define pfault_init()           ({-1;})
 109 #define pfault_fini()           do { } while (0)
 110 #endif /* CONFIG_PFAULT */
 111
 112 #ifdef CONFIG_VMCP
 113 void vmcp_cma_reserve(void);
 114 #else
 115 static inline void vmcp_cma_reserve(void) { }
 116 #endif
 117
 118 void report_user_fault(struct pt_regs *regs, long signr, int is_mm_fault);
 119
 120 void cmma_init(void);
 121 void cmma_init_nodat(void);
 122
 123 extern void (*_machine_restart)(char *command);
 124 extern void (*_machine_halt)(void);
 125 extern void (*_machine_power_off)(void);
 126
 127 #else /* __ASSEMBLY__ */
 128
 129 #define IPL_DEVICE        0x10400
 130 #define INITRD_START      0x10408
 131 #define INITRD_SIZE       0x10410
 132 #define OLDMEM_BASE       0x10418
 133 #define OLDMEM_SIZE       0x10420
 134 #define COMMAND_LINE      0x10480
 135
 136 #endif /* __ASSEMBLY__ */
 137 #endif /* _ASM_S390_SETUP_H */