arch/s390/kernel/reipl.S

   1 /*
   2  *  S390 version
   3  *    Copyright IBM Corp. 2000
   4  *    Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com)
   5  */
   6
   7 #include <linux/linkage.h>
   8 #include <asm/asm-offsets.h>
   9 #include <asm/sigp.h>
  10
  11 #
  12 # store_status: Empty implementation until kdump is supported on 31 bit
  13 #
  14 ENTRY(store_status)
  15                 br      %r14
  16
  17 #
  18 # do_reipl_asm
  19 # Parameter: r2 = schid of reipl device
  20 #
  21 ENTRY(do_reipl_asm)
  22                 basr    %r13,0
  23 .Lpg0:          lpsw    .Lnewpsw-.Lpg0(%r13)
  24 .Lpg1:          # do store status of all registers
  25
  26                 stm     %r0,%r15,__LC_GPREGS_SAVE_AREA
  27                 stctl   %c0,%c15,__LC_CREGS_SAVE_AREA
  28                 stam    %a0,%a15,__LC_AREGS_SAVE_AREA
  29                 l       %r10,.Ldump_pfx-.Lpg0(%r13)
  30                 mvc     __LC_PREFIX_SAVE_AREA(4),0(%r10)
  31                 stckc   .Lclkcmp-.Lpg0(%r13)
  32                 mvc     __LC_CLOCK_COMP_SAVE_AREA(8),.Lclkcmp-.Lpg0(%r13)
  33                 stpt    __LC_CPU_TIMER_SAVE_AREA
  34                 st      %r13, __LC_PSW_SAVE_AREA+4
  35                 lctl    %c6,%c6,.Lall-.Lpg0(%r13)
  36                 lr      %r1,%r2
  37                 mvc     __LC_PGM_NEW_PSW(8),.Lpcnew-.Lpg0(%r13)
  38                 stsch   .Lschib-.Lpg0(%r13)
  39                 oi      .Lschib+5-.Lpg0(%r13),0x84
  40 .Lecs:          xi      .Lschib+27-.Lpg0(%r13),0x01
  41                 msch    .Lschib-.Lpg0(%r13)
  42                 lhi     %r0,5
  43 .Lssch:         ssch    .Liplorb-.Lpg0(%r13)
  44                 jz      .L001
  45                 brct    %r0,.Lssch
  46                 bas     %r14,.Ldisab-.Lpg0(%r13)
  47 .L001:          mvc     __LC_IO_NEW_PSW(8),.Lionew-.Lpg0(%r13)
  48 .Ltpi:          lpsw    .Lwaitpsw-.Lpg0(%r13)
  49 .Lcont:         c       %r1,__LC_SUBCHANNEL_ID
  50                 jnz     .Ltpi
  51                 clc     __LC_IO_INT_PARM(4),.Liplorb-.Lpg0(%r13)
  52                 jnz     .Ltpi
  53                 tsch    .Liplirb-.Lpg0(%r13)
  54                 tm      .Liplirb+9-.Lpg0(%r13),0xbf
  55                 jz      .L002
  56                 bas     %r14,.Ldisab-.Lpg0(%r13)
  57 .L002:          tm      .Liplirb+8-.Lpg0(%r13),0xf3
  58                 jz      .L003
  59                 bas     %r14,.Ldisab-.Lpg0(%r13)
  60 .L003:          st      %r1,__LC_SUBCHANNEL_ID
  61                 lpsw    0
  62                 sigp    0,0,SIGP_RESTART
  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 .Ldump_pfx:     .long   dump_prefix_page
  69                 .align  8
  70 .Lnewpsw:       .long   0x00080000,0x80000000+.Lpg1
  71 .Lpcnew:        .long   0x00080000,0x80000000+.Lecs
  72 .Lionew:        .long   0x00080000,0x80000000+.Lcont
  73 .Lwaitpsw:      .long   0x020a0000,0x00000000+.Ltpi
  74 .Ldispsw:       .long   0x000a0000,0x00000000
  75 .Liplccws:      .long   0x02000000,0x60000018
  76                 .long   0x08000008,0x20000001
  77 .Liplorb:       .long   0x0049504c,0x0040ff80
  78                 .long   0x00000000+.Liplccws
  79 .Lschib:        .long   0x00000000,0x00000000
  80                 .long   0x00000000,0x00000000
  81                 .long   0x00000000,0x00000000
  82                 .long   0x00000000,0x00000000
  83                 .long   0x00000000,0x00000000
  84                 .long   0x00000000,0x00000000
  85 .Liplirb:       .long   0x00000000,0x00000000
  86                 .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