aboutsummaryrefslogtreecommitdiffstats
path: root/arch/s390/kernel/head64.S
diff options
context:
space:
mode:
authorHeiko Carstens <heiko.carstens@de.ibm.com>2006-09-28 10:56:37 -0400
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2006-09-28 10:56:37 -0400
commit25d83cbfaa44e1b9170c0941c3ef52ca39f54ccc (patch)
tree30d9bbc0a1051b837313edfafc40ffa6c5fbfedc /arch/s390/kernel/head64.S
parent52149ba6b0ddf3e9d965257cc0513193650b3ea8 (diff)
[S390] Whitespace cleanup.
Huge s390 assembly files whitespace cleanup. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/head64.S')
-rw-r--r--arch/s390/kernel/head64.S432
1 files changed, 216 insertions, 216 deletions
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index a8bdd96494c7..48998d50b00a 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -15,232 +15,232 @@
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) 20.LPG0: l %r13,0f-.LPG0(%r13)
21 b 0(%r13) 21 b 0(%r13)
220: .long startup_continue 220: .long startup_continue
23 23
24# 24#
25# params at 10400 (setup.h) 25# params at 10400 (setup.h)
26# 26#
27 .org PARMAREA 27 .org PARMAREA
28 .quad 0 # IPL_DEVICE 28 .quad 0 # IPL_DEVICE
29 .quad 0 # INITRD_START 29 .quad 0 # INITRD_START
30 .quad 0 # INITRD_SIZE 30 .quad 0 # INITRD_SIZE
31 31
32 .org COMMAND_LINE 32 .org COMMAND_LINE
33 .byte "root=/dev/ram0 ro" 33 .byte "root=/dev/ram0 ro"
34 .byte 0 34 .byte 0
35 35
36 .org 0x11000 36 .org 0x11000
37 37
38startup_continue: 38startup_continue:
39 basr %r13,0 # get base 39 basr %r13,0 # get base
40.LPG1: sll %r13,1 # remove high order bit 40.LPG1: sll %r13,1 # remove high order bit
41 srl %r13,1 41 srl %r13,1
42 lhi %r1,1 # mode 1 = esame 42 lhi %r1,1 # mode 1 = esame
43 mvi __LC_AR_MODE_ID,1 # set esame flag 43 mvi __LC_AR_MODE_ID,1 # set esame flag
44 slr %r0,%r0 # set cpuid to zero 44 slr %r0,%r0 # set cpuid to zero
45 sigp %r1,%r0,0x12 # switch to esame mode 45 sigp %r1,%r0,0x12 # switch to esame mode
46 sam64 # switch to 64 bit mode 46 sam64 # switch to 64 bit mode
47 lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers 47 lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
48 lg %r12,.Lparmaddr-.LPG1(%r13)# pointer to parameter area 48 lg %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
49 # move IPL device to lowcore 49 # move IPL device to lowcore
50 mvc __LC_IPLDEV(4),IPL_DEVICE+4-PARMAREA(%r12) 50 mvc __LC_IPLDEV(4),IPL_DEVICE+4-PARMAREA(%r12)
51# 51#
52# Setup stack 52# Setup stack
53# 53#
54 larl %r15,init_thread_union 54 larl %r15,init_thread_union
55 lg %r14,__TI_task(%r15) # cache current in lowcore 55 lg %r14,__TI_task(%r15) # cache current in lowcore
56 stg %r14,__LC_CURRENT 56 stg %r14,__LC_CURRENT
57 aghi %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union + THREAD_SIZE 57 aghi %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union + THREAD_SIZE
58 stg %r15,__LC_KERNEL_STACK # set end of kernel stack 58 stg %r15,__LC_KERNEL_STACK # set end of kernel stack
59 aghi %r15,-160 59 aghi %r15,-160
60 xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # clear backchain 60 xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # clear backchain
61 61
62 brasl %r14,ipl_save_parameters 62 brasl %r14,ipl_save_parameters
63# 63#
64# clear bss memory 64# clear bss memory
65# 65#
66 larl %r2,__bss_start # start of bss segment 66 larl %r2,__bss_start # start of bss segment
67 larl %r3,_end # end of bss segment 67 larl %r3,_end # end of bss segment
68 sgr %r3,%r2 # length of bss 68 sgr %r3,%r2 # length of bss
69 sgr %r4,%r4 # 69 sgr %r4,%r4 #
70 sgr %r5,%r5 # set src,length and pad to zero 70 sgr %r5,%r5 # set src,length and pad to zero
71 mvcle %r2,%r4,0 # clear mem 71 mvcle %r2,%r4,0 # clear mem
72 jo .-4 # branch back, if not finish 72 jo .-4 # branch back, if not finish
73 73
74 l %r2,.Lrcp-.LPG1(%r13) # Read SCP forced command word 74 l %r2,.Lrcp-.LPG1(%r13) # Read SCP forced command word
75.Lservicecall: 75.Lservicecall:
76 stosm .Lpmask-.LPG1(%r13),0x01 # authorize ext interrupts 76 stosm .Lpmask-.LPG1(%r13),0x01 # authorize ext interrupts
77 77
78 stctg %r0,%r0,.Lcr-.LPG1(%r13) # get cr0 78 stctg %r0,%r0,.Lcr-.LPG1(%r13) # get cr0
79 la %r1,0x200 # set bit 22 79 la %r1,0x200 # set bit 22
80 og %r1,.Lcr-.LPG1(%r13) # or old cr0 with r1 80 og %r1,.Lcr-.LPG1(%r13) # or old cr0 with r1
81 stg %r1,.Lcr-.LPG1(%r13) 81 stg %r1,.Lcr-.LPG1(%r13)
82 lctlg %r0,%r0,.Lcr-.LPG1(%r13) # load modified cr0 82 lctlg %r0,%r0,.Lcr-.LPG1(%r13) # load modified cr0
83 83
84 mvc __LC_EXT_NEW_PSW(8),.Lpcmsk-.LPG1(%r13) # set postcall psw 84 mvc __LC_EXT_NEW_PSW(8),.Lpcmsk-.LPG1(%r13) # set postcall psw
85 larl %r1,.Lsclph 85 larl %r1,.Lsclph
86 stg %r1,__LC_EXT_NEW_PSW+8 # set handler 86 stg %r1,__LC_EXT_NEW_PSW+8 # set handler
87 87
88 larl %r4,.Lsccb # %r4 is our index for sccb stuff 88 larl %r4,.Lsccb # %r4 is our index for sccb stuff
89 lgr %r1,%r4 # our sccb 89 lgr %r1,%r4 # our sccb
90 .insn rre,0xb2200000,%r2,%r1 # service call 90 .insn rre,0xb2200000,%r2,%r1 # service call
91 ipm %r1 91 ipm %r1
92 srl %r1,28 # get cc code 92 srl %r1,28 # get cc code
93 xr %r3,%r3 93 xr %r3,%r3
94 chi %r1,3 94 chi %r1,3
95 be .Lfchunk-.LPG1(%r13) # leave 95 be .Lfchunk-.LPG1(%r13) # leave
96 chi %r1,2 96 chi %r1,2
97 be .Lservicecall-.LPG1(%r13) 97 be .Lservicecall-.LPG1(%r13)
98 lpswe .Lwaitsclp-.LPG1(%r13) 98 lpswe .Lwaitsclp-.LPG1(%r13)
99.Lsclph: 99.Lsclph:
100 lh %r1,.Lsccbr-.Lsccb(%r4) 100 lh %r1,.Lsccbr-.Lsccb(%r4)
101 chi %r1,0x10 # 0x0010 is the sucess code 101 chi %r1,0x10 # 0x0010 is the sucess code
102 je .Lprocsccb # let's process the sccb 102 je .Lprocsccb # let's process the sccb
103 chi %r1,0x1f0 103 chi %r1,0x1f0
104 bne .Lfchunk-.LPG1(%r13) # unhandled error code 104 bne .Lfchunk-.LPG1(%r13) # unhandled error code
105 c %r2,.Lrcp-.LPG1(%r13) # Did we try Read SCP forced 105 c %r2,.Lrcp-.LPG1(%r13) # Did we try Read SCP forced
106 bne .Lfchunk-.LPG1(%r13) # if no, give up 106 bne .Lfchunk-.LPG1(%r13) # if no, give up
107 l %r2,.Lrcp2-.LPG1(%r13) # try with Read SCP 107 l %r2,.Lrcp2-.LPG1(%r13) # try with Read SCP
108 b .Lservicecall-.LPG1(%r13) 108 b .Lservicecall-.LPG1(%r13)
109.Lprocsccb: 109.Lprocsccb:
110 lghi %r1,0 110 lghi %r1,0
111 icm %r1,3,.Lscpincr1-.Lsccb(%r4) # use this one if != 0 111 icm %r1,3,.Lscpincr1-.Lsccb(%r4) # use this one if != 0
112 jnz .Lscnd 112 jnz .Lscnd
113 lg %r1,.Lscpincr2-.Lsccb(%r4) # otherwise use this one 113 lg %r1,.Lscpincr2-.Lsccb(%r4) # otherwise use this one
114.Lscnd: 114.Lscnd:
115 xr %r3,%r3 # same logic 115 xr %r3,%r3 # same logic
116 ic %r3,.Lscpa1-.Lsccb(%r4) 116 ic %r3,.Lscpa1-.Lsccb(%r4)
117 chi %r3,0x00 117 chi %r3,0x00
118 jne .Lcompmem 118 jne .Lcompmem
119 l %r3,.Lscpa2-.Lsccb(%r4) 119 l %r3,.Lscpa2-.Lsccb(%r4)
120.Lcompmem: 120.Lcompmem:
121 mlgr %r2,%r1 # mem in MB on 128-bit 121 mlgr %r2,%r1 # mem in MB on 128-bit
122 l %r1,.Lonemb-.LPG1(%r13) 122 l %r1,.Lonemb-.LPG1(%r13)
123 mlgr %r2,%r1 # mem size in bytes in %r3 123 mlgr %r2,%r1 # mem size in bytes in %r3
124 b .Lfchunk-.LPG1(%r13) 124 b .Lfchunk-.LPG1(%r13)
125 125
126 .align 4 126 .align 4
127.Lpmask: 127.Lpmask:
128 .byte 0 128 .byte 0
129 .align 8 129 .align 8
130.Lcr: 130.Lcr:
131 .quad 0x00 # place holder for cr0 131 .quad 0x00 # place holder for cr0
132.Lwaitsclp: 132.Lwaitsclp:
133 .quad 0x0102000180000000,.Lsclph 133 .quad 0x0102000180000000,.Lsclph
134.Lrcp: 134.Lrcp:
135 .int 0x00120001 # Read SCP forced code 135 .int 0x00120001 # Read SCP forced code
136.Lrcp2: 136.Lrcp2:
137 .int 0x00020001 # Read SCP code 137 .int 0x00020001 # Read SCP code
138.Lonemb: 138.Lonemb:
139 .int 0x100000 139 .int 0x100000
140 140
141.Lfchunk: 141.Lfchunk:
142 # set program check new psw mask 142 # set program check new psw mask
143 mvc __LC_PGM_NEW_PSW(8),.Lpcmsk-.LPG1(%r13) 143 mvc __LC_PGM_NEW_PSW(8),.Lpcmsk-.LPG1(%r13)
144 144
145# 145#
146# find memory chunks. 146# find memory chunks.
147# 147#
148 lgr %r9,%r3 # end of mem 148 lgr %r9,%r3 # end of mem
149 larl %r1,.Lchkmem # set program check address 149 larl %r1,.Lchkmem # set program check address
150 stg %r1,__LC_PGM_NEW_PSW+8 150 stg %r1,__LC_PGM_NEW_PSW+8
151 la %r1,1 # test in increments of 128KB 151 la %r1,1 # test in increments of 128KB
152 sllg %r1,%r1,17 152 sllg %r1,%r1,17
153 larl %r3,memory_chunk 153 larl %r3,memory_chunk
154 slgr %r4,%r4 # set start of chunk to zero 154 slgr %r4,%r4 # set start of chunk to zero
155 slgr %r5,%r5 # set end of chunk to zero 155 slgr %r5,%r5 # set end of chunk to zero
156 slr %r6,%r6 # set access code to zero 156 slr %r6,%r6 # set access code to zero
157 la %r10,MEMORY_CHUNKS # number of chunks 157 la %r10,MEMORY_CHUNKS # number of chunks
158.Lloop: 158.Lloop:
159 tprot 0(%r5),0 # test protection of first byte 159 tprot 0(%r5),0 # test protection of first byte
160 ipm %r7 160 ipm %r7
161 srl %r7,28 161 srl %r7,28
162 clr %r6,%r7 # compare cc with last access code 162 clr %r6,%r7 # compare cc with last access code
163 je .Lsame 163 je .Lsame
164 j .Lchkmem 164 j .Lchkmem
165.Lsame: 165.Lsame:
166 algr %r5,%r1 # add 128KB to end of chunk 166 algr %r5,%r1 # add 128KB to end of chunk
167 # no need to check here, 167 # no need to check here,
168 brc 12,.Lloop # this is the same chunk 168 brc 12,.Lloop # this is the same chunk
169.Lchkmem: # > 16EB or tprot got a program check 169.Lchkmem: # > 16EB or tprot got a program check
170 clgr %r4,%r5 # chunk size > 0? 170 clgr %r4,%r5 # chunk size > 0?
171 je .Lchkloop 171 je .Lchkloop
172 stg %r4,0(%r3) # store start address of chunk 172 stg %r4,0(%r3) # store start address of chunk
173 lgr %r0,%r5 173 lgr %r0,%r5
174 slgr %r0,%r4 174 slgr %r0,%r4
175 stg %r0,8(%r3) # store size of chunk 175 stg %r0,8(%r3) # store size of chunk
176 st %r6,20(%r3) # store type of chunk 176 st %r6,20(%r3) # store type of chunk
177 la %r3,24(%r3) 177 la %r3,24(%r3)
178 larl %r8,memory_size 178 larl %r8,memory_size
179 stg %r5,0(%r8) # store memory size 179 stg %r5,0(%r8) # store memory size
180 ahi %r10,-1 # update chunk number 180 ahi %r10,-1 # update chunk number
181.Lchkloop: 181.Lchkloop:
182 lr %r6,%r7 # set access code to last cc 182 lr %r6,%r7 # set access code to last cc
183 # we got an exception or we're starting a new 183 # we got an exception or we're starting a new
184 # chunk , we must check if we should 184 # chunk , we must check if we should
185 # still try to find valid memory (if we detected 185 # still try to find valid memory (if we detected
186 # the amount of available storage), and if we 186 # the amount of available storage), and if we
187 # have chunks left 187 # have chunks left
188 lghi %r4,1 188 lghi %r4,1
189 sllg %r4,%r4,31 189 sllg %r4,%r4,31
190 clgr %r5,%r4 190 clgr %r5,%r4
191 je .Lhsaskip 191 je .Lhsaskip
192 xr %r0, %r0 192 xr %r0, %r0
193 clgr %r0, %r9 # did we detect memory? 193 clgr %r0, %r9 # did we detect memory?
194 je .Ldonemem # if not, leave 194 je .Ldonemem # if not, leave
195 chi %r10, 0 # do we have chunks left? 195 chi %r10, 0 # do we have chunks left?
196 je .Ldonemem 196 je .Ldonemem
197.Lhsaskip: 197.Lhsaskip:
198 algr %r5,%r1 # add 128KB to end of chunk 198 algr %r5,%r1 # add 128KB to end of chunk
199 lgr %r4,%r5 # potential new chunk 199 lgr %r4,%r5 # potential new chunk
200 clgr %r5,%r9 # should we go on? 200 clgr %r5,%r9 # should we go on?
201 jl .Lloop 201 jl .Lloop
202.Ldonemem: 202.Ldonemem:
203 203
204 larl %r12,machine_flags 204 larl %r12,machine_flags
205# 205#
206# find out if we are running under VM 206# find out if we are running under VM
207# 207#
208 stidp __LC_CPUID # store cpuid 208 stidp __LC_CPUID # store cpuid
209 tm __LC_CPUID,0xff # running under VM ? 209 tm __LC_CPUID,0xff # running under VM ?
210 bno 0f-.LPG1(%r13) 210 bno 0f-.LPG1(%r13)
211 oi 7(%r12),1 # set VM flag 211 oi 7(%r12),1 # set VM flag
2120: lh %r0,__LC_CPUID+4 # get cpu version 2120: lh %r0,__LC_CPUID+4 # get cpu version
213 chi %r0,0x7490 # running on a P/390 ? 213 chi %r0,0x7490 # running on a P/390 ?
214 bne 1f-.LPG1(%r13) 214 bne 1f-.LPG1(%r13)
215 oi 7(%r12),4 # set P/390 flag 215 oi 7(%r12),4 # set P/390 flag
2161: 2161:
217 217
218# 218#
219# find out if we have the MVPG instruction 219# find out if we have the MVPG instruction
220# 220#
221 la %r1,0f-.LPG1(%r13) # set program check address 221 la %r1,0f-.LPG1(%r13) # set program check address
222 stg %r1,__LC_PGM_NEW_PSW+8 222 stg %r1,__LC_PGM_NEW_PSW+8
223 sgr %r0,%r0 223 sgr %r0,%r0
224 lghi %r1,0 224 lghi %r1,0
225 lghi %r2,0 225 lghi %r2,0
226 mvpg %r1,%r2 # test MVPG instruction 226 mvpg %r1,%r2 # test MVPG instruction
227 oi 7(%r12),16 # set MVPG flag 227 oi 7(%r12),16 # set MVPG flag
2280: 2280:
229 229
230# 230#
231# find out if the diag 0x44 works in 64 bit mode 231# find out if the diag 0x44 works in 64 bit mode
232# 232#
233 la %r1,0f-.LPG1(%r13) # set program check address 233 la %r1,0f-.LPG1(%r13) # set program check address
234 stg %r1,__LC_PGM_NEW_PSW+8 234 stg %r1,__LC_PGM_NEW_PSW+8
235 diag 0,0,0x44 # test diag 0x44 235 diag 0,0,0x44 # test diag 0x44
236 oi 7(%r12),32 # set diag44 flag 236 oi 7(%r12),32 # set diag44 flag
2370: 2370:
238 238
239# 239#
240# find out if we have the IDTE instruction 240# find out if we have the IDTE instruction
241# 241#
242 la %r1,0f-.LPG1(%r13) # set program check address 242 la %r1,0f-.LPG1(%r13) # set program check address
243 stg %r1,__LC_PGM_NEW_PSW+8 243 stg %r1,__LC_PGM_NEW_PSW+8
244 .long 0xb2b10000 # store facility list 244 .long 0xb2b10000 # store facility list
245 tm 0xc8,0x08 # check bit for clearing-by-ASCE 245 tm 0xc8,0x08 # check bit for clearing-by-ASCE
246 bno 0f-.LPG1(%r13) 246 bno 0f-.LPG1(%r13)
@@ -263,45 +263,45 @@ startup_continue:
263 oi 6(%r12),2 # set MVCOS flag 263 oi 6(%r12),2 # set MVCOS flag
2641: 2641:
265 265
266 lpswe .Lentry-.LPG1(13) # jump to _stext in primary-space, 266 lpswe .Lentry-.LPG1(13) # jump to _stext in primary-space,
267 # virtual and never return ... 267 # virtual and never return ...
268 .align 16 268 .align 16
269.Lentry:.quad 0x0000000180000000,_stext 269.Lentry:.quad 0x0000000180000000,_stext
270.Lctl: .quad 0x04b50002 # cr0: various things 270.Lctl: .quad 0x04b50002 # cr0: various things
271 .quad 0 # cr1: primary space segment table 271 .quad 0 # cr1: primary space segment table
272 .quad .Lduct # cr2: dispatchable unit control table 272 .quad .Lduct # cr2: dispatchable unit control table
273 .quad 0 # cr3: instruction authorization 273 .quad 0 # cr3: instruction authorization
274 .quad 0 # cr4: instruction authorization 274 .quad 0 # cr4: instruction authorization
275 .quad 0xffffffffffffffff # cr5: primary-aste origin 275 .quad 0xffffffffffffffff # cr5: primary-aste origin
276 .quad 0 # cr6: I/O interrupts 276 .quad 0 # cr6: I/O interrupts
277 .quad 0 # cr7: secondary space segment table 277 .quad 0 # cr7: secondary space segment table
278 .quad 0 # cr8: access registers translation 278 .quad 0 # cr8: access registers translation
279 .quad 0 # cr9: tracing off 279 .quad 0 # cr9: tracing off
280 .quad 0 # cr10: tracing off 280 .quad 0 # cr10: tracing off
281 .quad 0 # cr11: tracing off 281 .quad 0 # cr11: tracing off
282 .quad 0 # cr12: tracing off 282 .quad 0 # cr12: tracing off
283 .quad 0 # cr13: home space segment table 283 .quad 0 # cr13: home space segment table
284 .quad 0xc0000000 # cr14: machine check handling off 284 .quad 0xc0000000 # cr14: machine check handling off
285 .quad 0 # cr15: linkage stack operations 285 .quad 0 # cr15: linkage stack operations
286.Lduct: .long 0,0,0,0,0,0,0,0 286.Lduct: .long 0,0,0,0,0,0,0,0
287 .long 0,0,0,0,0,0,0,0 287 .long 0,0,0,0,0,0,0,0
288.Lpcmsk:.quad 0x0000000180000000 288.Lpcmsk:.quad 0x0000000180000000
289.L4malign:.quad 0xffffffffffc00000 289.L4malign:.quad 0xffffffffffc00000
290.Lscan2g:.quad 0x80000000 + 0x20000 - 8 # 2GB + 128K - 8 290.Lscan2g:.quad 0x80000000 + 0x20000 - 8 # 2GB + 128K - 8
291.Lnop: .long 0x07000700 291.Lnop: .long 0x07000700
292.Lparmaddr: 292.Lparmaddr:
293 .quad PARMAREA 293 .quad PARMAREA
294 294
295 .globl ipl_schib 295 .globl ipl_schib
296ipl_schib: 296ipl_schib:
297 .rept 13 297 .rept 13
298 .long 0 298 .long 0
299 .endr 299 .endr
300 300
301 .globl ipl_flags 301 .globl ipl_flags
302ipl_flags: 302ipl_flags:
303 .long 0 303 .long 0
304 .globl ipl_devno 304 .globl ipl_devno
305ipl_devno: 305ipl_devno:
306 .word 0 306 .word 0
307 307
@@ -309,47 +309,47 @@ ipl_devno:
309.globl s390_readinfo_sccb 309.globl s390_readinfo_sccb
310s390_readinfo_sccb: 310s390_readinfo_sccb:
311.Lsccb: 311.Lsccb:
312 .hword 0x1000 # length, one page 312 .hword 0x1000 # length, one page
313 .byte 0x00,0x00,0x00 313 .byte 0x00,0x00,0x00
314 .byte 0x80 # variable response bit set 314 .byte 0x80 # variable response bit set
315.Lsccbr: 315.Lsccbr:
316 .hword 0x00 # response code 316 .hword 0x00 # response code
317.Lscpincr1: 317.Lscpincr1:
318 .hword 0x00 318 .hword 0x00
319.Lscpa1: 319.Lscpa1:
320 .byte 0x00 320 .byte 0x00
321 .fill 89,1,0 321 .fill 89,1,0
322.Lscpa2: 322.Lscpa2:
323 .int 0x00 323 .int 0x00
324.Lscpincr2: 324.Lscpincr2:
325 .quad 0x00 325 .quad 0x00
326 .fill 3984,1,0 326 .fill 3984,1,0
327 .org 0x13000 327 .org 0x13000
328 328
329#ifdef CONFIG_SHARED_KERNEL 329#ifdef CONFIG_SHARED_KERNEL
330 .org 0x100000 330 .org 0x100000
331#endif 331#endif
332 332
333# 333#
334# startup-code, running in absolute addressing mode 334# startup-code, running in absolute addressing mode
335# 335#
336 .globl _stext 336 .globl _stext
337_stext: basr %r13,0 # get base 337_stext: basr %r13,0 # get base
338.LPG3: 338.LPG3:
339# check control registers 339# check control registers
340 stctg %c0,%c15,0(%r15) 340 stctg %c0,%c15,0(%r15)
341 oi 6(%r15),0x40 # enable sigp emergency signal 341 oi 6(%r15),0x40 # enable sigp emergency signal
342 oi 4(%r15),0x10 # switch on low address proctection 342 oi 4(%r15),0x10 # switch on low address proctection
343 lctlg %c0,%c15,0(%r15) 343 lctlg %c0,%c15,0(%r15)
344 344
345 lam 0,15,.Laregs-.LPG3(%r13) # load access regs needed by uaccess 345 lam 0,15,.Laregs-.LPG3(%r13) # load acrs needed by uaccess
346 brasl %r14,start_kernel # go to C code 346 brasl %r14,start_kernel # go to C code
347# 347#
348# We returned from start_kernel ?!? PANIK 348# We returned from start_kernel ?!? PANIK
349# 349#
350 basr %r13,0 350 basr %r13,0
351 lpswe .Ldw-.(%r13) # load disabled wait psw 351 lpswe .Ldw-.(%r13) # load disabled wait psw
352 352
353 .align 8 353 .align 8
354.Ldw: .quad 0x0002000180000000,0x0000000000000000 354.Ldw: .quad 0x0002000180000000,0x0000000000000000
355.Laregs: .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 355.Laregs:.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-20 04:37:40 -0500