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 <linux/linkage.h>
  10 #include <asm/asm-offsets.h>
  11
  12 #
  13 # store_status: Empty implementation until kdump is supported on 31 bit
  14 #
  15 ENTRY(store_status)
  16                 br      %r14
  17
  18 #
  19 # do_reipl_asm
  20 # Parameter: r2 = schid of reipl device
  21 #
  22 ENTRY(do_reipl_asm)
  23                 basr    %r13,0
  24 .Lpg0:          lpsw    .Lnewpsw-.Lpg0(%r13)
  25 .Lpg1:          # do store status of all registers
  26
  27                 stm     %r0,%r15,__LC_GPREGS_SAVE_AREA
  28                 stctl   %c0,%c15,__LC_CREGS_SAVE_AREA
  29                 stam    %a0,%a15,__LC_AREGS_SAVE_AREA
  30                 l       %r10,.Ldump_pfx-.Lpg0(%r13)
  31                 mvc     __LC_PREFIX_SAVE_AREA(4),0(%r10)
  32                 stckc   .Lclkcmp-.Lpg0(%r13)
  33                 mvc     __LC_CLOCK_COMP_SAVE_AREA(8),.Lclkcmp-.Lpg0(%r13)
  34                 stpt    __LC_CPU_TIMER_SAVE_AREA
  35                 st      %r13, __LC_PSW_SAVE_AREA+4
  36                 lctl    %c6,%c6,.Lall-.Lpg0(%r13)
  37                 lr      %r1,%r2
  38                 mvc     __LC_PGM_NEW_PSW(8),.Lpcnew-.Lpg0(%r13)
  39                 stsch   .Lschib-.Lpg0(%r13)
  40                 oi      .Lschib+5-.Lpg0(%r13),0x84
  41 .Lecs:          xi      .Lschib+27-.Lpg0(%r13),0x01
  42                 msch    .Lschib-.Lpg0(%r13)
  43                 lhi     %r0,5
  44 .Lssch:         ssch    .Liplorb-.Lpg0(%r13)
  45                 jz      .L001
  46                 brct    %r0,.Lssch
  47                 bas     %r14,.Ldisab-.Lpg0(%r13)
  48 .L001:          mvc     __LC_IO_NEW_PSW(8),.Lionew-.Lpg0(%r13)
  49 .Ltpi:          lpsw    .Lwaitpsw-.Lpg0(%r13)
  50 .Lcont:         c       %r1,__LC_SUBCHANNEL_ID
  51                 jnz     .Ltpi
  52                 clc     __LC_IO_INT_PARM(4),.Liplorb-.Lpg0(%r13)
  53                 jnz     .Ltpi
  54                 tsch    .Liplirb-.Lpg0(%r13)
  55                 tm      .Liplirb+9-.Lpg0(%r13),0xbf
  56                 jz      .L002
  57                 bas     %r14,.Ldisab-.Lpg0(%r13)
  58 .L002:          tm      .Liplirb+8-.Lpg0(%r13),0xf3
  59                 jz      .L003
  60                 bas     %r14,.Ldisab-.Lpg0(%r13)
  61 .L003:          st      %r1,__LC_SUBCHANNEL_ID
  62                 lpsw    0
  63                 sigp    0,0,0(6)
  64 .Ldisab:        st      %r14,.Ldispsw+4-.Lpg0(%r13)
  65                 lpsw    .Ldispsw-.Lpg0(%r13)
  66                 .align  8
  67 .Lclkcmp:       .quad   0x0000000000000000
  68 .Lall:          .long   0xff000000
  69 .Ldump_pfx:     .long   dump_prefix_page
  70                 .align  8
  71 .Lnewpsw:       .long   0x00080000,0x80000000+.Lpg1
  72 .Lpcnew:        .long   0x00080000,0x80000000+.Lecs
  73 .Lionew:        .long   0x00080000,0x80000000+.Lcont
  74 .Lwaitpsw:      .long   0x020a0000,0x00000000+.Ltpi
  75 .Ldispsw:       .long   0x000a0000,0x00000000
  76 .Liplccws:      .long   0x02000000,0x60000018
  77                 .long   0x08000008,0x20000001
  78 .Liplorb:       .long   0x0049504c,0x0040ff80
  79                 .long   0x00000000+.Liplccws
  80 .Lschib:        .long   0x00000000,0x00000000
  81                 .long   0x00000000,0x00000000
  82                 .long   0x00000000,0x00000000
  83                 .long   0x00000000,0x00000000
  84                 .long   0x00000000,0x00000000
  85                 .long   0x00000000,0x00000000
  86 .Liplirb:       .long   0x00000000,0x00000000
  87                 .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