xref: /openbmc/linux/arch/s390/kernel/reipl.S (revision 95e9fd10)
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#
14ENTRY(store_status)
15		br	%r14
16
17#
18# do_reipl_asm
19# Parameter: r2 = schid of reipl device
20#
21ENTRY(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
93