Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Heiko Carstens | c70d0fe | 2009-03-26 15:24:57 +0100 | [diff] [blame] | 2 | * Copyright IBM Corp 2000,2009 |
| 3 | * Author(s): Holger Smolinski <Holger.Smolinski@de.ibm.com>, |
| 4 | * Denis Joseph Barrow, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | */ |
| 6 | |
Jan Glauber | 144d634 | 2011-07-24 10:48:19 +0200 | [diff] [blame] | 7 | #include <linux/linkage.h> |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 8 | #include <asm/asm-offsets.h> |
Heiko Carstens | c5dd858 | 2007-03-05 23:35:43 +0100 | [diff] [blame] | 9 | |
| 10 | # |
| 11 | # do_reipl_asm |
| 12 | # Parameter: r2 = schid of reipl device |
| 13 | # |
| 14 | |
Jan Glauber | 144d634 | 2011-07-24 10:48:19 +0200 | [diff] [blame] | 15 | ENTRY(do_reipl_asm) |
| 16 | basr %r13,0 |
Heiko Carstens | 15e9b58 | 2006-12-04 15:40:26 +0100 | [diff] [blame] | 17 | .Lpg0: lpswe .Lnewpsw-.Lpg0(%r13) |
| 18 | .Lpg1: # do store status of all registers |
Michael Holzheu | ff6b8ea | 2006-09-20 15:58:49 +0200 | [diff] [blame] | 19 | |
Heiko Carstens | 15e9b58 | 2006-12-04 15:40:26 +0100 | [diff] [blame] | 20 | stg %r1,.Lregsave-.Lpg0(%r13) |
Michael Holzheu | ff6b8ea | 2006-09-20 15:58:49 +0200 | [diff] [blame] | 21 | lghi %r1,0x1000 |
| 22 | stmg %r0,%r15,__LC_GPREGS_SAVE_AREA-0x1000(%r1) |
| 23 | lg %r0,.Lregsave-.Lpg0(%r13) |
| 24 | stg %r0,__LC_GPREGS_SAVE_AREA-0x1000+8(%r1) |
| 25 | stctg %c0,%c15,__LC_CREGS_SAVE_AREA-0x1000(%r1) |
| 26 | stam %a0,%a15,__LC_AREGS_SAVE_AREA-0x1000(%r1) |
Heiko Carstens | c5dd858 | 2007-03-05 23:35:43 +0100 | [diff] [blame] | 27 | lg %r10,.Ldump_pfx-.Lpg0(%r13) |
| 28 | mvc __LC_PREFIX_SAVE_AREA-0x1000(4,%r1),0(%r10) |
Michael Holzheu | ff6b8ea | 2006-09-20 15:58:49 +0200 | [diff] [blame] | 29 | stfpc __LC_FP_CREG_SAVE_AREA-0x1000(%r1) |
| 30 | stckc .Lclkcmp-.Lpg0(%r13) |
Heiko Carstens | c70d0fe | 2009-03-26 15:24:57 +0100 | [diff] [blame] | 31 | mvc __LC_CLOCK_COMP_SAVE_AREA-0x1000(7,%r1),.Lclkcmp-.Lpg0(%r13) |
Michael Holzheu | ff6b8ea | 2006-09-20 15:58:49 +0200 | [diff] [blame] | 32 | stpt __LC_CPU_TIMER_SAVE_AREA-0x1000(%r1) |
| 33 | stg %r13, __LC_PSW_SAVE_AREA-0x1000+8(%r1) |
| 34 | |
Heiko Carstens | 15e9b58 | 2006-12-04 15:40:26 +0100 | [diff] [blame] | 35 | lctlg %c6,%c6,.Lall-.Lpg0(%r13) |
Heiko Carstens | 25d83cb | 2006-09-28 16:56:37 +0200 | [diff] [blame] | 36 | lgr %r1,%r2 |
| 37 | mvc __LC_PGM_NEW_PSW(16),.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 | lghi %r0,5 |
| 43 | .Lssch: ssch .Liplorb-.Lpg0(%r13) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | jz .L001 |
Heiko Carstens | 25d83cb | 2006-09-28 16:56:37 +0200 | [diff] [blame] | 45 | brct %r0,.Lssch |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | bas %r14,.Ldisab-.Lpg0(%r13) |
Heiko Carstens | 25d83cb | 2006-09-28 16:56:37 +0200 | [diff] [blame] | 47 | .L001: mvc __LC_IO_NEW_PSW(16),.Lionew-.Lpg0(%r13) |
| 48 | .Ltpi: lpswe .Lwaitpsw-.Lpg0(%r13) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | .Lcont: c %r1,__LC_SUBCHANNEL_ID |
| 50 | jnz .Ltpi |
| 51 | clc __LC_IO_INT_PARM(4),.Liplorb-.Lpg0(%r13) |
| 52 | jnz .Ltpi |
Heiko Carstens | 25d83cb | 2006-09-28 16:56:37 +0200 | [diff] [blame] | 53 | tsch .Liplirb-.Lpg0(%r13) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | tm .Liplirb+9-.Lpg0(%r13),0xbf |
Heiko Carstens | 25d83cb | 2006-09-28 16:56:37 +0200 | [diff] [blame] | 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) |
Heiko Carstens | 15e9b58 | 2006-12-04 15:40:26 +0100 | [diff] [blame] | 60 | .L003: st %r1,__LC_SUBCHANNEL_ID |
Heiko Carstens | 25d83cb | 2006-09-28 16:56:37 +0200 | [diff] [blame] | 61 | lhi %r1,0 # mode 0 = esa |
| 62 | slr %r0,%r0 # set cpuid to zero |
| 63 | sigp %r1,%r0,0x12 # switch to esa mode |
| 64 | lpsw 0 |
| 65 | .Ldisab: sll %r14,1 |
| 66 | srl %r14,1 # need to kill hi bit to avoid specification exceptions. |
| 67 | st %r14,.Ldispsw+12-.Lpg0(%r13) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | lpswe .Ldispsw-.Lpg0(%r13) |
Heiko Carstens | 25d83cb | 2006-09-28 16:56:37 +0200 | [diff] [blame] | 69 | .align 8 |
Michael Holzheu | ff6b8ea | 2006-09-20 15:58:49 +0200 | [diff] [blame] | 70 | .Lclkcmp: .quad 0x0000000000000000 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | .Lall: .quad 0x00000000ff000000 |
Heiko Carstens | c5dd858 | 2007-03-05 23:35:43 +0100 | [diff] [blame] | 72 | .Ldump_pfx: .quad dump_prefix_page |
Michael Holzheu | ff6b8ea | 2006-09-20 15:58:49 +0200 | [diff] [blame] | 73 | .Lregsave: .quad 0x0000000000000000 |
Heiko Carstens | 25d83cb | 2006-09-28 16:56:37 +0200 | [diff] [blame] | 74 | .align 16 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | /* |
| 76 | * These addresses have to be 31 bit otherwise |
| 77 | * the sigp will throw a specifcation exception |
| 78 | * when switching to ESA mode as bit 31 be set |
| 79 | * in the ESA psw. |
| 80 | * Bit 31 of the addresses has to be 0 for the |
| 81 | * 31bit lpswe instruction a fact they appear to have |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 82 | * omitted from the pop. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | */ |
Heiko Carstens | 25d83cb | 2006-09-28 16:56:37 +0200 | [diff] [blame] | 84 | .Lnewpsw: .quad 0x0000000080000000 |
| 85 | .quad .Lpg1 |
| 86 | .Lpcnew: .quad 0x0000000080000000 |
| 87 | .quad .Lecs |
| 88 | .Lionew: .quad 0x0000000080000000 |
| 89 | .quad .Lcont |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | .Lwaitpsw: .quad 0x0202000080000000 |
Heiko Carstens | 25d83cb | 2006-09-28 16:56:37 +0200 | [diff] [blame] | 91 | .quad .Ltpi |
| 92 | .Ldispsw: .quad 0x0002000080000000 |
| 93 | .quad 0x0000000000000000 |
| 94 | .Liplccws: .long 0x02000000,0x60000018 |
| 95 | .long 0x08000008,0x20000001 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | .Liplorb: .long 0x0049504c,0x0040ff80 |
| 97 | .long 0x00000000+.Liplccws |
Heiko Carstens | 25d83cb | 2006-09-28 16:56:37 +0200 | [diff] [blame] | 98 | .Lschib: .long 0x00000000,0x00000000 |
| 99 | .long 0x00000000,0x00000000 |
| 100 | .long 0x00000000,0x00000000 |
| 101 | .long 0x00000000,0x00000000 |
| 102 | .long 0x00000000,0x00000000 |
| 103 | .long 0x00000000,0x00000000 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | .Liplirb: .long 0x00000000,0x00000000 |
| 105 | .long 0x00000000,0x00000000 |
| 106 | .long 0x00000000,0x00000000 |
| 107 | .long 0x00000000,0x00000000 |
| 108 | .long 0x00000000,0x00000000 |
| 109 | .long 0x00000000,0x00000000 |
| 110 | .long 0x00000000,0x00000000 |
| 111 | .long 0x00000000,0x00000000 |