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Commit | Line | Data |
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1da177e4 LT |
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 | ||
ff6b8ea6 MH |
11 | .globl do_reipl_asm |
12 | do_reipl_asm: basr %r13,0 | |
1da177e4 | 13 | .Lpg0: lpsw .Lnewpsw-.Lpg0(%r13) |
ff6b8ea6 MH |
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) | |
25d83cbf HC |
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) | |
1da177e4 | 43 | jz .L001 |
25d83cbf | 44 | brct %r0,.Lssch |
1da177e4 | 45 | bas %r14,.Ldisab-.Lpg0(%r13) |
25d83cbf HC |
46 | .L001: mvc __LC_IO_NEW_PSW(8),.Lionew-.Lpg0(%r13) |
47 | .Ltpi: lpsw .Lwaitpsw-.Lpg0(%r13) | |
1da177e4 LT |
48 | .Lcont: c %r1,__LC_SUBCHANNEL_ID |
49 | jnz .Ltpi | |
50 | clc __LC_IO_INT_PARM(4),.Liplorb-.Lpg0(%r13) | |
51 | jnz .Ltpi | |
25d83cbf | 52 | tsch .Liplirb-.Lpg0(%r13) |
1da177e4 | 53 | tm .Liplirb+9-.Lpg0(%r13),0xbf |
25d83cbf HC |
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) | |
1da177e4 | 59 | .L003: spx .Lnull-.Lpg0(%r13) |
25d83cbf HC |
60 | st %r1,__LC_SUBCHANNEL_ID |
61 | lpsw 0 | |
62 | sigp 0,0,0(6) | |
63 | .Ldisab: st %r14,.Ldispsw+4-.Lpg0(%r13) | |
1da177e4 | 64 | lpsw .Ldispsw-.Lpg0(%r13) |
25d83cbf | 65 | .align 8 |
ff6b8ea6 | 66 | .Lclkcmp: .quad 0x0000000000000000 |
1da177e4 | 67 | .Lall: .long 0xff000000 |
25d83cbf | 68 | .Lnull: .long 0x00000000 |
ff6b8ea6 MH |
69 | .Lctlsave1: .long 0x00000000 |
70 | .Lctlsave2: .long 0x00000000 | |
25d83cbf HC |
71 | .align 8 |
72 | .Lnewpsw: .long 0x00080000,0x80000000+.Lpg1 | |
73 | .Lpcnew: .long 0x00080000,0x80000000+.Lecs | |
74 | .Lionew: .long 0x00080000,0x80000000+.Lcont | |
1da177e4 | 75 | .Lwaitpsw: .long 0x020a0000,0x00000000+.Ltpi |
25d83cbf HC |
76 | .Ldispsw: .long 0x000a0000,0x00000000 |
77 | .Liplccws: .long 0x02000000,0x60000018 | |
78 | .long 0x08000008,0x20000001 | |
1da177e4 LT |
79 | .Liplorb: .long 0x0049504c,0x0040ff80 |
80 | .long 0x00000000+.Liplccws | |
25d83cbf HC |
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 | |
1da177e4 LT |
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 |