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-rw-r--r--arch/s390/kernel/head.S22
-rw-r--r--arch/s390/kernel/head31.S77
-rw-r--r--arch/s390/kernel/head64.S79
3 files changed, 88 insertions, 90 deletions
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index ea88d066bf04..538c82da49b1 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -1,7 +1,7 @@
1/* 1/*
2 * arch/s390/kernel/head.S 2 * arch/s390/kernel/head.S
3 * 3 *
4 * (C) Copyright IBM Corp. 1999, 2005 4 * Copyright (C) IBM Corp. 1999,2006
5 * 5 *
6 * Author(s): Hartmut Penner <hp@de.ibm.com> 6 * Author(s): Hartmut Penner <hp@de.ibm.com>
7 * Martin Schwidefsky <schwidefsky@de.ibm.com> 7 * Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -482,24 +482,23 @@ start:
482 482
483.macro GET_IPL_DEVICE 483.macro GET_IPL_DEVICE
484.Lget_ipl_device: 484.Lget_ipl_device:
485 basr %r12,0 485 l %r1,0xb8 # get sid
486.LGID: l %r1,0xb8 # get sid
487 sll %r1,15 # test if subchannel is enabled 486 sll %r1,15 # test if subchannel is enabled
488 srl %r1,31 487 srl %r1,31
489 ltr %r1,%r1 488 ltr %r1,%r1
490 bz 0(%r14) # subchannel disabled 489 bz 2f-.LPG1(%r13) # subchannel disabled
491 l %r1,0xb8 490 l %r1,0xb8
492 la %r5,.Lipl_schib-.LGID(%r12) 491 la %r5,.Lipl_schib-.LPG1(%r13)
493 stsch 0(%r5) # get schib of subchannel 492 stsch 0(%r5) # get schib of subchannel
494 bnz 0(%r14) # schib not available 493 bnz 2f-.LPG1(%r13) # schib not available
495 tm 5(%r5),0x01 # devno valid? 494 tm 5(%r5),0x01 # devno valid?
496 bno 0(%r14) 495 bno 2f-.LPG1(%r13)
497 la %r6,ipl_parameter_flags-.LGID(%r12) 496 la %r6,ipl_parameter_flags-.LPG1(%r13)
498 oi 3(%r6),0x01 # set flag 497 oi 3(%r6),0x01 # set flag
499 la %r2,ipl_devno-.LGID(%r12) 498 la %r2,ipl_devno-.LPG1(%r13)
500 mvc 0(2,%r2),6(%r5) # store devno 499 mvc 0(2,%r2),6(%r5) # store devno
501 tm 4(%r5),0x80 # qdio capable device? 500 tm 4(%r5),0x80 # qdio capable device?
502 bno 0(%r14) 501 bno 2f-.LPG1(%r13)
503 oi 3(%r6),0x02 # set flag 502 oi 3(%r6),0x02 # set flag
504 503
505 # copy ipl parameters 504 # copy ipl parameters
@@ -523,7 +522,7 @@ start:
523 ar %r2,%r1 522 ar %r2,%r1
524 sr %r0,%r4 523 sr %r0,%r4
525 jne 1b 524 jne 1b
526 b 0(%r14) 525 b 2f-.LPG1(%r13)
527 526
528 .align 4 527 .align 4
529.Lipl_schib: 528.Lipl_schib:
@@ -537,6 +536,7 @@ ipl_parameter_flags:
537 .globl ipl_devno 536 .globl ipl_devno
538ipl_devno: 537ipl_devno:
539 .word 0 538 .word 0
5392:
540.endm 540.endm
541 541
542#ifdef CONFIG_64BIT 542#ifdef CONFIG_64BIT
diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S
index 8f38bfd642cf..d00de17b3778 100644
--- a/arch/s390/kernel/head31.S
+++ b/arch/s390/kernel/head31.S
@@ -1,7 +1,7 @@
1/* 1/*
2 * arch/s390/kernel/head31.S 2 * arch/s390/kernel/head31.S
3 * 3 *
4 * (C) Copyright IBM Corp. 2005 4 * Copyright (C) IBM Corp. 2005,2006
5 * 5 *
6 * Author(s): Hartmut Penner <hp@de.ibm.com> 6 * Author(s): Hartmut Penner <hp@de.ibm.com>
7 * Martin Schwidefsky <schwidefsky@de.ibm.com> 7 * Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -16,12 +16,31 @@
16# or linload or SALIPL 16# or linload or SALIPL
17# 17#
18 .org 0x10000 18 .org 0x10000
19startup:basr %r13,0 # get base 19startup:basr %r13,0 # get base
20.LPG1: l %r1, .Lget_ipl_device_addr-.LPG1(%r13) 20.LPG0: l %r13,0f-.LPG0(%r13)
21 basr %r14, %r1 21 b 0(%r13)
220: .long startup_continue
23
24#
25# params at 10400 (setup.h)
26#
27 .org PARMAREA
28 .long 0,0 # IPL_DEVICE
29 .long 0,RAMDISK_ORIGIN # INITRD_START
30 .long 0,RAMDISK_SIZE # INITRD_SIZE
31
32 .org COMMAND_LINE
33 .byte "root=/dev/ram0 ro"
34 .byte 0
35
36 .org 0x11000
37
38startup_continue:
39 basr %r13,0 # get base
40.LPG1: GET_IPL_DEVICE
22 lctl %c0,%c15,.Lctl-.LPG1(%r13) # load control registers 41 lctl %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
23 la %r12,_pstart-.LPG1(%r13) # pointer to parameter area 42 l %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
24 # move IPL device to lowcore 43 # move IPL device to lowcore
25 mvc __LC_IPLDEV(4),IPL_DEVICE-PARMAREA(%r12) 44 mvc __LC_IPLDEV(4),IPL_DEVICE-PARMAREA(%r12)
26 45
27# 46#
@@ -51,8 +70,8 @@ startup:basr %r13,0 # get base
51 a %r1,__LC_EXT_NEW_PSW+4 # set handler 70 a %r1,__LC_EXT_NEW_PSW+4 # set handler
52 st %r1,__LC_EXT_NEW_PSW+4 71 st %r1,__LC_EXT_NEW_PSW+4
53 72
54 la %r4,_pstart-.LPG1(%r13) # %r4 is our index for sccb stuff 73 l %r4,.Lsccbaddr-.LPG1(%r13) # %r4 is our index for sccb stuff
55 la %r1, .Lsccb-PARMAREA(%r4) # our sccb 74 lr %r1,%r4 # our sccb
56 .insn rre,0xb2200000,%r2,%r1 # service call 75 .insn rre,0xb2200000,%r2,%r1 # service call
57 ipm %r1 76 ipm %r1
58 srl %r1,28 # get cc code 77 srl %r1,28 # get cc code
@@ -63,7 +82,7 @@ startup:basr %r13,0 # get base
63 be .Lservicecall-.LPG1(%r13) 82 be .Lservicecall-.LPG1(%r13)
64 lpsw .Lwaitsclp-.LPG1(%r13) 83 lpsw .Lwaitsclp-.LPG1(%r13)
65.Lsclph: 84.Lsclph:
66 lh %r1,.Lsccbr-PARMAREA(%r4) 85 lh %r1,.Lsccbr-.Lsccb(%r4)
67 chi %r1,0x10 # 0x0010 is the sucess code 86 chi %r1,0x10 # 0x0010 is the sucess code
68 je .Lprocsccb # let's process the sccb 87 je .Lprocsccb # let's process the sccb
69 chi %r1,0x1f0 88 chi %r1,0x1f0
@@ -74,7 +93,7 @@ startup:basr %r13,0 # get base
74 b .Lservicecall-.LPG1(%r13) 93 b .Lservicecall-.LPG1(%r13)
75.Lprocsccb: 94.Lprocsccb:
76 lhi %r1,0 95 lhi %r1,0
77 icm %r1,3,.Lscpincr1-PARMAREA(%r4) # use this one if != 0 96 icm %r1,3,.Lscpincr1-.Lsccb(%r4) # use this one if != 0
78 jnz .Lscnd 97 jnz .Lscnd
79 lhi %r1,0x800 # otherwise report 2GB 98 lhi %r1,0x800 # otherwise report 2GB
80.Lscnd: 99.Lscnd:
@@ -84,10 +103,10 @@ startup:basr %r13,0 # get base
84 lr %r1,%r3 103 lr %r1,%r3
85.Lno2gb: 104.Lno2gb:
86 xr %r3,%r3 # same logic 105 xr %r3,%r3 # same logic
87 ic %r3,.Lscpa1-PARMAREA(%r4) 106 ic %r3,.Lscpa1-.Lsccb(%r4)
88 chi %r3,0x00 107 chi %r3,0x00
89 jne .Lcompmem 108 jne .Lcompmem
90 l %r3,.Lscpa2-PARMAREA(%r4) 109 l %r3,.Lscpa2-.Lsccb(%r4)
91.Lcompmem: 110.Lcompmem:
92 mr %r2,%r1 # mem in MB on 128-bit 111 mr %r2,%r1 # mem in MB on 128-bit
93 l %r1,.Lonemb-.LPG1(%r13) 112 l %r1,.Lonemb-.LPG1(%r13)
@@ -95,8 +114,6 @@ startup:basr %r13,0 # get base
95 b .Lfchunk-.LPG1(%r13) 114 b .Lfchunk-.LPG1(%r13)
96 115
97 .align 4 116 .align 4
98.Lget_ipl_device_addr:
99 .long .Lget_ipl_device
100.Lpmask: 117.Lpmask:
101 .byte 0 118 .byte 0
102.align 8 119.align 8
@@ -242,6 +259,8 @@ startup:basr %r13,0 # get base
242 .long 0 # cr13: home space segment table 259 .long 0 # cr13: home space segment table
243 .long 0xc0000000 # cr14: machine check handling off 260 .long 0xc0000000 # cr14: machine check handling off
244 .long 0 # cr15: linkage stack operations 261 .long 0 # cr15: linkage stack operations
262.Lduct: .long 0,0,0,0,0,0,0,0
263 .long 0,0,0,0,0,0,0,0
245.Lpcmem:.long 0x00080000,0x80000000 + .Lchkmem 264.Lpcmem:.long 0x00080000,0x80000000 + .Lchkmem
246.Lpcfpu:.long 0x00080000,0x80000000 + .Lchkfpu 265.Lpcfpu:.long 0x00080000,0x80000000 + .Lchkfpu
247.Lpccsp:.long 0x00080000,0x80000000 + .Lchkcsp 266.Lpccsp:.long 0x00080000,0x80000000 + .Lchkcsp
@@ -252,25 +271,9 @@ startup:basr %r13,0 # get base
252.Lmflags:.long machine_flags 271.Lmflags:.long machine_flags
253.Lbss_bgn: .long __bss_start 272.Lbss_bgn: .long __bss_start
254.Lbss_end: .long _end 273.Lbss_end: .long _end
255 274.Lparmaddr: .long PARMAREA
256 .org PARMAREA-64 275.Lsccbaddr: .long .Lsccb
257.Lduct: .long 0,0,0,0,0,0,0,0 276 .align 4096
258 .long 0,0,0,0,0,0,0,0
259
260#
261# params at 10400 (setup.h)
262#
263 .org PARMAREA
264 .global _pstart
265_pstart:
266 .long 0,0 # IPL_DEVICE
267 .long 0,RAMDISK_ORIGIN # INITRD_START
268 .long 0,RAMDISK_SIZE # INITRD_SIZE
269
270 .org COMMAND_LINE
271 .byte "root=/dev/ram0 ro"
272 .byte 0
273 .org 0x11000
274.Lsccb: 277.Lsccb:
275 .hword 0x1000 # length, one page 278 .hword 0x1000 # length, one page
276 .byte 0x00,0x00,0x00 279 .byte 0x00,0x00,0x00
@@ -287,18 +290,14 @@ _pstart:
287.Lscpincr2: 290.Lscpincr2:
288 .quad 0x00 291 .quad 0x00
289 .fill 3984,1,0 292 .fill 3984,1,0
290 .org 0x12000 293 .align 4096
291 .global _pend
292_pend:
293
294 GET_IPL_DEVICE
295 294
296#ifdef CONFIG_SHARED_KERNEL 295#ifdef CONFIG_SHARED_KERNEL
297 .org 0x100000 296 .org 0x100000
298#endif 297#endif
299 298
300# 299#
301# startup-code, running in virtual mode 300# startup-code, running in absolute addressing mode
302# 301#
303 .globl _stext 302 .globl _stext
304_stext: basr %r13,0 # get base 303_stext: basr %r13,0 # get base
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index ad5d87f3aef3..47744fcca930 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -1,7 +1,7 @@
1/* 1/*
2 * arch/s390/kernel/head64.S 2 * arch/s390/kernel/head64.S
3 * 3 *
4 * (C) Copyright IBM Corp. 1999,2005 4 * Copyright (C) IBM Corp. 1999,2006
5 * 5 *
6 * Author(s): Hartmut Penner <hp@de.ibm.com> 6 * Author(s): Hartmut Penner <hp@de.ibm.com>
7 * Martin Schwidefsky <schwidefsky@de.ibm.com> 7 * Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -15,18 +15,37 @@
15# this is called either by the ipl loader or directly by PSW restart 15# this is called either by the ipl loader or directly by PSW restart
16# or linload or SALIPL 16# or linload or SALIPL
17# 17#
18 .org 0x10000 18 .org 0x10000
19startup:basr %r13,0 # get base 19startup:basr %r13,0 # get base
20.LPG0: l %r13,0f-.LPG0(%r13)
21 b 0(%r13)
220: .long startup_continue
23
24#
25# params at 10400 (setup.h)
26#
27 .org PARMAREA
28 .quad 0 # IPL_DEVICE
29 .quad RAMDISK_ORIGIN # INITRD_START
30 .quad RAMDISK_SIZE # INITRD_SIZE
31
32 .org COMMAND_LINE
33 .byte "root=/dev/ram0 ro"
34 .byte 0
35
36 .org 0x11000
37
38startup_continue:
39 basr %r13,0 # get base
20.LPG1: sll %r13,1 # remove high order bit 40.LPG1: sll %r13,1 # remove high order bit
21 srl %r13,1 41 srl %r13,1
22 l %r1,.Lget_ipl_device_addr-.LPG1(%r13) 42 GET_IPL_DEVICE
23 basr %r14,%r1
24 lhi %r1,1 # mode 1 = esame 43 lhi %r1,1 # mode 1 = esame
25 slr %r0,%r0 # set cpuid to zero 44 slr %r0,%r0 # set cpuid to zero
26 sigp %r1,%r0,0x12 # switch to esame mode 45 sigp %r1,%r0,0x12 # switch to esame mode
27 sam64 # switch to 64 bit mode 46 sam64 # switch to 64 bit mode
28 lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers 47 lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
29 larl %r12,_pstart # pointer to parameter area 48 lg %r12,.Lparmaddr-.LPG1(%r13)# pointer to parameter area
30 # move IPL device to lowcore 49 # move IPL device to lowcore
31 mvc __LC_IPLDEV(4),IPL_DEVICE+4-PARMAREA(%r12) 50 mvc __LC_IPLDEV(4),IPL_DEVICE+4-PARMAREA(%r12)
32 51
@@ -55,8 +74,8 @@ startup:basr %r13,0 # get base
55 larl %r1,.Lsclph 74 larl %r1,.Lsclph
56 stg %r1,__LC_EXT_NEW_PSW+8 # set handler 75 stg %r1,__LC_EXT_NEW_PSW+8 # set handler
57 76
58 larl %r4,_pstart # %r4 is our index for sccb stuff 77 larl %r4,.Lsccb # %r4 is our index for sccb stuff
59 la %r1,.Lsccb-PARMAREA(%r4) # our sccb 78 lgr %r1,%r4 # our sccb
60 .insn rre,0xb2200000,%r2,%r1 # service call 79 .insn rre,0xb2200000,%r2,%r1 # service call
61 ipm %r1 80 ipm %r1
62 srl %r1,28 # get cc code 81 srl %r1,28 # get cc code
@@ -67,7 +86,7 @@ startup:basr %r13,0 # get base
67 be .Lservicecall-.LPG1(%r13) 86 be .Lservicecall-.LPG1(%r13)
68 lpswe .Lwaitsclp-.LPG1(%r13) 87 lpswe .Lwaitsclp-.LPG1(%r13)
69.Lsclph: 88.Lsclph:
70 lh %r1,.Lsccbr-PARMAREA(%r4) 89 lh %r1,.Lsccbr-.Lsccb(%r4)
71 chi %r1,0x10 # 0x0010 is the sucess code 90 chi %r1,0x10 # 0x0010 is the sucess code
72 je .Lprocsccb # let's process the sccb 91 je .Lprocsccb # let's process the sccb
73 chi %r1,0x1f0 92 chi %r1,0x1f0
@@ -78,15 +97,15 @@ startup:basr %r13,0 # get base
78 b .Lservicecall-.LPG1(%r13) 97 b .Lservicecall-.LPG1(%r13)
79.Lprocsccb: 98.Lprocsccb:
80 lghi %r1,0 99 lghi %r1,0
81 icm %r1,3,.Lscpincr1-PARMAREA(%r4) # use this one if != 0 100 icm %r1,3,.Lscpincr1-.Lsccb(%r4) # use this one if != 0
82 jnz .Lscnd 101 jnz .Lscnd
83 lg %r1,.Lscpincr2-PARMAREA(%r4) # otherwise use this one 102 lg %r1,.Lscpincr2-.Lsccb(%r4) # otherwise use this one
84.Lscnd: 103.Lscnd:
85 xr %r3,%r3 # same logic 104 xr %r3,%r3 # same logic
86 ic %r3,.Lscpa1-PARMAREA(%r4) 105 ic %r3,.Lscpa1-.Lsccb(%r4)
87 chi %r3,0x00 106 chi %r3,0x00
88 jne .Lcompmem 107 jne .Lcompmem
89 l %r3,.Lscpa2-PARMAREA(%r4) 108 l %r3,.Lscpa2-.Lsccb(%r4)
90.Lcompmem: 109.Lcompmem:
91 mlgr %r2,%r1 # mem in MB on 128-bit 110 mlgr %r2,%r1 # mem in MB on 128-bit
92 l %r1,.Lonemb-.LPG1(%r13) 111 l %r1,.Lonemb-.LPG1(%r13)
@@ -94,8 +113,6 @@ startup:basr %r13,0 # get base
94 b .Lfchunk-.LPG1(%r13) 113 b .Lfchunk-.LPG1(%r13)
95 114
96 .align 4 115 .align 4
97.Lget_ipl_device_addr:
98 .long .Lget_ipl_device
99.Lpmask: 116.Lpmask:
100 .byte 0 117 .byte 0
101 .align 8 118 .align 8
@@ -242,29 +259,16 @@ startup:basr %r13,0 # get base
242 .quad 0 # cr13: home space segment table 259 .quad 0 # cr13: home space segment table
243 .quad 0xc0000000 # cr14: machine check handling off 260 .quad 0xc0000000 # cr14: machine check handling off
244 .quad 0 # cr15: linkage stack operations 261 .quad 0 # cr15: linkage stack operations
262.Lduct: .long 0,0,0,0,0,0,0,0
263 .long 0,0,0,0,0,0,0,0
245.Lpcmsk:.quad 0x0000000180000000 264.Lpcmsk:.quad 0x0000000180000000
246.L4malign:.quad 0xffffffffffc00000 265.L4malign:.quad 0xffffffffffc00000
247.Lscan2g:.quad 0x80000000 + 0x20000 - 8 # 2GB + 128K - 8 266.Lscan2g:.quad 0x80000000 + 0x20000 - 8 # 2GB + 128K - 8
248.Lnop: .long 0x07000700 267.Lnop: .long 0x07000700
268.Lparmaddr:
269 .quad PARMAREA
249 270
250 .org PARMAREA-64 271 .align 4096
251.Lduct: .long 0,0,0,0,0,0,0,0
252 .long 0,0,0,0,0,0,0,0
253
254#
255# params at 10400 (setup.h)
256#
257 .org PARMAREA
258 .global _pstart
259_pstart:
260 .quad 0 # IPL_DEVICE
261 .quad RAMDISK_ORIGIN # INITRD_START
262 .quad RAMDISK_SIZE # INITRD_SIZE
263
264 .org COMMAND_LINE
265 .byte "root=/dev/ram0 ro"
266 .byte 0
267 .org 0x11000
268.Lsccb: 272.Lsccb:
269 .hword 0x1000 # length, one page 273 .hword 0x1000 # length, one page
270 .byte 0x00,0x00,0x00 274 .byte 0x00,0x00,0x00
@@ -281,18 +285,14 @@ _pstart:
281.Lscpincr2: 285.Lscpincr2:
282 .quad 0x00 286 .quad 0x00
283 .fill 3984,1,0 287 .fill 3984,1,0
284 .org 0x12000 288 .align 4096
285 .global _pend
286_pend:
287
288 GET_IPL_DEVICE
289 289
290#ifdef CONFIG_SHARED_KERNEL 290#ifdef CONFIG_SHARED_KERNEL
291 .org 0x100000 291 .org 0x100000
292#endif 292#endif
293 293
294# 294#
295# startup-code, running in virtual mode 295# startup-code, running in absolute addressing mode
296# 296#
297 .globl _stext 297 .globl _stext
298_stext: basr %r13,0 # get base 298_stext: basr %r13,0 # get base
@@ -326,4 +326,3 @@ _stext: basr %r13,0 # get base
326 .align 8 326 .align 8
327.Ldw: .quad 0x0002000180000000,0x0000000000000000 327.Ldw: .quad 0x0002000180000000,0x0000000000000000
328.Laregs: .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 328.Laregs: .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
329
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-23 09:34:22 -0500