arch/s390/kernel/reipl.S

   1 /*
   2  *  arch/s390/kernel/reipl.S
   3  *
   4  *  S390 version
   5  *    Copyright (C) 2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
   6  *    Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com)
   7  */
   8
   9 #include <asm/lowcore.h>
  10
  11                 .globl  do_reipl_asm
  12 do_reipl_asm:   basr    %r13,0
  13 .Lpg0:          lpsw    .Lnewpsw-.Lpg0(%r13)
  14
  15                 # switch off lowcore protection
  16
  17 .Lpg1:          stctl   %c0,%c0,.Lctlsave1-.Lpg0(%r13)
  18                 stctl   %c0,%c0,.Lctlsave2-.Lpg0(%r13)
  19                 ni      .Lctlsave1-.Lpg0(%r13),0xef
  20                 lctl    %c0,%c0,.Lctlsave1-.Lpg0(%r13)
  21
  22                 # do store status of all registers
  23
  24                 stm     %r0,%r15,__LC_GPREGS_SAVE_AREA
  25                 stctl   %c0,%c15,__LC_CREGS_SAVE_AREA
  26                 mvc     __LC_CREGS_SAVE_AREA(4),.Lctlsave2-.Lpg0(%r13)
  27                 stam    %a0,%a15,__LC_AREGS_SAVE_AREA
  28                 stpx    __LC_PREFIX_SAVE_AREA
  29                 stckc   .Lclkcmp-.Lpg0(%r13)
  30                 mvc     __LC_CLOCK_COMP_SAVE_AREA(8),.Lclkcmp-.Lpg0(%r13)
  31                 stpt    __LC_CPU_TIMER_SAVE_AREA
  32                 st      %r13, __LC_PSW_SAVE_AREA+4
  33
  34                 lctl    %c6,%c6,.Lall-.Lpg0(%r13)
  35                 lr      %r1,%r2
  36                 mvc     __LC_PGM_NEW_PSW(8),.Lpcnew-.Lpg0(%r13)
  37                 stsch   .Lschib-.Lpg0(%r13)
  38                 oi      .Lschib+5-.Lpg0(%r13),0x84
  39 .Lecs:          xi      .Lschib+27-.Lpg0(%r13),0x01
  40                 msch    .Lschib-.Lpg0(%r13)
  41                 lhi     %r0,5
  42 .Lssch:         ssch    .Liplorb-.Lpg0(%r13)
  43                 jz      .L001
  44                 brct    %r0,.Lssch
  45                 bas     %r14,.Ldisab-.Lpg0(%r13)
  46 .L001:          mvc     __LC_IO_NEW_PSW(8),.Lionew-.Lpg0(%r13)
  47 .Ltpi:          lpsw    .Lwaitpsw-.Lpg0(%r13)
  48 .Lcont:         c       %r1,__LC_SUBCHANNEL_ID
  49                 jnz     .Ltpi
  50                 clc     __LC_IO_INT_PARM(4),.Liplorb-.Lpg0(%r13)
  51                 jnz     .Ltpi
  52                 tsch    .Liplirb-.Lpg0(%r13)
  53                 tm      .Liplirb+9-.Lpg0(%r13),0xbf
  54                 jz      .L002
  55                 bas     %r14,.Ldisab-.Lpg0(%r13)
  56 .L002:          tm      .Liplirb+8-.Lpg0(%r13),0xf3
  57                 jz      .L003
  58                 bas     %r14,.Ldisab-.Lpg0(%r13)
  59 .L003:          spx     .Lnull-.Lpg0(%r13)
  60                 st      %r1,__LC_SUBCHANNEL_ID
  61                 lpsw    0
  62                 sigp    0,0,0(6)
  63 .Ldisab:        st      %r14,.Ldispsw+4-.Lpg0(%r13)
  64                 lpsw    .Ldispsw-.Lpg0(%r13)
  65                 .align  8
  66 .Lclkcmp:       .quad   0x0000000000000000
  67 .Lall:          .long   0xff000000
  68 .Lnull:         .long   0x00000000
  69 .Lctlsave1:     .long   0x00000000
  70 .Lctlsave2:     .long   0x00000000
  71                 .align  8
  72 .Lnewpsw:       .long   0x00080000,0x80000000+.Lpg1
  73 .Lpcnew:        .long   0x00080000,0x80000000+.Lecs
  74 .Lionew:        .long   0x00080000,0x80000000+.Lcont
  75 .Lwaitpsw:      .long   0x020a0000,0x00000000+.Ltpi
  76 .Ldispsw:       .long   0x000a0000,0x00000000
  77 .Liplccws:      .long   0x02000000,0x60000018
  78                 .long   0x08000008,0x20000001
  79 .Liplorb:       .long   0x0049504c,0x0040ff80
  80                 .long   0x00000000+.Liplccws
  81 .Lschib:        .long   0x00000000,0x00000000
  82                 .long   0x00000000,0x00000000
  83                 .long   0x00000000,0x00000000
  84                 .long   0x00000000,0x00000000
  85                 .long   0x00000000,0x00000000
  86                 .long   0x00000000,0x00000000
  87 .Liplirb:       .long   0x00000000,0x00000000
  88                 .long   0x00000000,0x00000000
  89                 .long   0x00000000,0x00000000
  90                 .long   0x00000000,0x00000000
  91                 .long   0x00000000,0x00000000
  92                 .long   0x00000000,0x00000000
  93                 .long   0x00000000,0x00000000
  94                 .long   0x00000000,0x00000000
  95
  96
  97