18282cd64SVasily Gorbik/* SPDX-License-Identifier: GPL-2.0 */ 28282cd64SVasily Gorbik/* 38282cd64SVasily Gorbik * Copyright IBM Corp. 1999, 2010 48282cd64SVasily Gorbik * 58282cd64SVasily Gorbik * Author(s): Hartmut Penner <hp@de.ibm.com> 68282cd64SVasily Gorbik * Martin Schwidefsky <schwidefsky@de.ibm.com> 78282cd64SVasily Gorbik * Rob van der Heij <rvdhei@iae.nl> 88282cd64SVasily Gorbik * 98282cd64SVasily Gorbik * There are 5 different IPL methods 108282cd64SVasily Gorbik * 1) load the image directly into ram at address 0 and do an PSW restart 118282cd64SVasily Gorbik * 2) linload will load the image from address 0x10000 to memory 0x10000 128282cd64SVasily Gorbik * and start the code thru LPSW 0x0008000080010000 (VM only, deprecated) 138282cd64SVasily Gorbik * 3) generate the tape ipl header, store the generated image on a tape 148282cd64SVasily Gorbik * and ipl from it 158282cd64SVasily Gorbik * In case of SL tape you need to IPL 5 times to get past VOL1 etc 168282cd64SVasily Gorbik * 4) generate the vm reader ipl header, move the generated image to the 178282cd64SVasily Gorbik * VM reader (use option NOH!) and do a ipl from reader (VM only) 188282cd64SVasily Gorbik * 5) direct call of start by the SALIPL loader 198282cd64SVasily Gorbik * We use the cpuid to distinguish between VM and native ipl 208282cd64SVasily Gorbik * params for kernel are pushed to 0x10400 (see setup.h) 218282cd64SVasily Gorbik * 228282cd64SVasily Gorbik */ 238282cd64SVasily Gorbik 248282cd64SVasily Gorbik#include <linux/init.h> 258282cd64SVasily Gorbik#include <linux/linkage.h> 268282cd64SVasily Gorbik#include <asm/asm-offsets.h> 278282cd64SVasily Gorbik#include <asm/page.h> 288282cd64SVasily Gorbik#include <asm/ptrace.h> 290029b4d1SAlexander Egorenkov#include <asm/sclp.h> 30834979c2SHeiko Carstens#include "boot.h" 318282cd64SVasily Gorbik 328282cd64SVasily Gorbik#define ARCH_OFFSET 4 338282cd64SVasily Gorbik 346a24d466SAlexander Egorenkov#define EP_OFFSET 0x10008 356a24d466SAlexander Egorenkov#define EP_STRING "S390EP" 36834979c2SHeiko Carstens#define IPL_BS 0x730 3773475797SHeiko Carstens 388282cd64SVasily Gorbik__HEAD 3973475797SHeiko Carstensipl_start: 4073475797SHeiko Carstens j .Liplcont 418282cd64SVasily Gorbik# 428282cd64SVasily Gorbik# subroutine to wait for end I/O 438282cd64SVasily Gorbik# 448282cd64SVasily Gorbik.Lirqwait: 45*e9953b72SHeiko Carstens larl %r13,.Lnewpsw # set up IO interrupt psw 46*e9953b72SHeiko Carstens mvc __LC_IO_NEW_PSW(16),0(%r13) 478282cd64SVasily Gorbik lpsw .Lwaitpsw 488282cd64SVasily Gorbik.Lioint: 498282cd64SVasily Gorbik br %r14 508282cd64SVasily Gorbik .align 8 518282cd64SVasily Gorbik.Lnewpsw: 528282cd64SVasily Gorbik .quad 0x0000000080000000,.Lioint 538282cd64SVasily Gorbik.Lwaitpsw: 548282cd64SVasily Gorbik .long 0x020a0000,0x80000000+.Lioint 558282cd64SVasily Gorbik 568282cd64SVasily Gorbik# 578282cd64SVasily Gorbik# subroutine for loading cards from the reader 588282cd64SVasily Gorbik# 598282cd64SVasily Gorbik.Lloader: 608282cd64SVasily Gorbik la %r4,0(%r14) 618282cd64SVasily Gorbik la %r3,.Lorb # r2 = address of orb into r2 628282cd64SVasily Gorbik la %r5,.Lirb # r4 = address of irb 638282cd64SVasily Gorbik la %r6,.Lccws 648282cd64SVasily Gorbik la %r7,20 658282cd64SVasily Gorbik.Linit: 668282cd64SVasily Gorbik st %r2,4(%r6) # initialize CCW data addresses 678282cd64SVasily Gorbik la %r2,0x50(%r2) 688282cd64SVasily Gorbik la %r6,8(%r6) 698282cd64SVasily Gorbik bct 7,.Linit 708282cd64SVasily Gorbik 718282cd64SVasily Gorbik lctl %c6,%c6,.Lcr6 # set IO subclass mask 728282cd64SVasily Gorbik slr %r2,%r2 738282cd64SVasily Gorbik.Lldlp: 748282cd64SVasily Gorbik ssch 0(%r3) # load chunk of 1600 bytes 758282cd64SVasily Gorbik bnz .Llderr 768282cd64SVasily Gorbik.Lwait4irq: 778282cd64SVasily Gorbik bas %r14,.Lirqwait 788282cd64SVasily Gorbik c %r1,__LC_SUBCHANNEL_ID # compare subchannel number 798282cd64SVasily Gorbik bne .Lwait4irq 808282cd64SVasily Gorbik tsch 0(%r5) 818282cd64SVasily Gorbik 828282cd64SVasily Gorbik slr %r0,%r0 838282cd64SVasily Gorbik ic %r0,8(%r5) # get device status 848282cd64SVasily Gorbik chi %r0,8 # channel end ? 858282cd64SVasily Gorbik be .Lcont 868282cd64SVasily Gorbik chi %r0,12 # channel end + device end ? 878282cd64SVasily Gorbik be .Lcont 888282cd64SVasily Gorbik 898282cd64SVasily Gorbik l %r0,4(%r5) 908282cd64SVasily Gorbik s %r0,8(%r3) # r0/8 = number of ccws executed 918282cd64SVasily Gorbik mhi %r0,10 # *10 = number of bytes in ccws 928282cd64SVasily Gorbik lh %r3,10(%r5) # get residual count 938282cd64SVasily Gorbik sr %r0,%r3 # #ccws*80-residual=#bytes read 948282cd64SVasily Gorbik ar %r2,%r0 958282cd64SVasily Gorbik 968282cd64SVasily Gorbik br %r4 # r2 contains the total size 978282cd64SVasily Gorbik 988282cd64SVasily Gorbik.Lcont: 998282cd64SVasily Gorbik ahi %r2,0x640 # add 0x640 to total size 1008282cd64SVasily Gorbik la %r6,.Lccws 1018282cd64SVasily Gorbik la %r7,20 1028282cd64SVasily Gorbik.Lincr: 1038282cd64SVasily Gorbik l %r0,4(%r6) # update CCW data addresses 1048282cd64SVasily Gorbik ahi %r0,0x640 1058282cd64SVasily Gorbik st %r0,4(%r6) 1068282cd64SVasily Gorbik ahi %r6,8 1078282cd64SVasily Gorbik bct 7,.Lincr 1088282cd64SVasily Gorbik 1098282cd64SVasily Gorbik b .Lldlp 1108282cd64SVasily Gorbik.Llderr: 1118282cd64SVasily Gorbik lpsw .Lcrash 1128282cd64SVasily Gorbik 1138282cd64SVasily Gorbik .align 8 1148282cd64SVasily Gorbik.Lorb: .long 0x00000000,0x0080ff00,.Lccws 1158282cd64SVasily Gorbik.Lirb: .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 1168282cd64SVasily Gorbik.Lcr6: .long 0xff000000 1178282cd64SVasily Gorbik.Lloadp:.long 0,0 1188282cd64SVasily Gorbik .align 8 1198282cd64SVasily Gorbik.Lcrash:.long 0x000a0000,0x00000000 1208282cd64SVasily Gorbik 1218282cd64SVasily Gorbik .align 8 1228282cd64SVasily Gorbik.Lccws: .rept 19 1238282cd64SVasily Gorbik .long 0x02600050,0x00000000 1248282cd64SVasily Gorbik .endr 1258282cd64SVasily Gorbik .long 0x02200050,0x00000000 1268282cd64SVasily Gorbik 12773475797SHeiko Carstens.Liplcont: 1288282cd64SVasily Gorbik mvi __LC_AR_MODE_ID,1 # set esame flag 1298282cd64SVasily Gorbik slr %r0,%r0 # set cpuid to zero 1308282cd64SVasily Gorbik lhi %r1,2 # mode 2 = esame (dump) 1318282cd64SVasily Gorbik sigp %r1,%r0,0x12 # switch to esame mode 1328282cd64SVasily Gorbik bras %r13,0f 1338282cd64SVasily Gorbik .fill 16,4,0x0 1348282cd64SVasily Gorbik0: lmh %r0,%r15,0(%r13) # clear high-order half of gprs 1358282cd64SVasily Gorbik sam31 # switch to 31 bit addressing mode 1368282cd64SVasily Gorbik lh %r1,__LC_SUBCHANNEL_ID # test if subchannel number 1378282cd64SVasily Gorbik bct %r1,.Lnoload # is valid 1388282cd64SVasily Gorbik l %r1,__LC_SUBCHANNEL_ID # load ipl subchannel number 1398282cd64SVasily Gorbik la %r2,IPL_BS # load start address 1408282cd64SVasily Gorbik bas %r14,.Lloader # load rest of ipl image 1418282cd64SVasily Gorbik l %r12,.Lparm # pointer to parameter area 1428282cd64SVasily Gorbik st %r1,IPL_DEVICE+ARCH_OFFSET-PARMAREA(%r12) # save ipl device number 1438282cd64SVasily Gorbik 1448282cd64SVasily Gorbik# 1458282cd64SVasily Gorbik# load parameter file from ipl device 1468282cd64SVasily Gorbik# 1478282cd64SVasily Gorbik.Lagain1: 1488282cd64SVasily Gorbik l %r2,.Linitrd # ramdisk loc. is temp 1498282cd64SVasily Gorbik bas %r14,.Lloader # load parameter file 1508282cd64SVasily Gorbik ltr %r2,%r2 # got anything ? 1518282cd64SVasily Gorbik bz .Lnopf 1525ecb2da6SSven Schnelle l %r3,MAX_COMMAND_LINE_SIZE+ARCH_OFFSET-PARMAREA(%r12) 1535ecb2da6SSven Schnelle ahi %r3,-1 1545ecb2da6SSven Schnelle clr %r2,%r3 1555ecb2da6SSven Schnelle bl .Lnotrunc 1565ecb2da6SSven Schnelle lr %r2,%r3 1578282cd64SVasily Gorbik.Lnotrunc: 1588282cd64SVasily Gorbik l %r4,.Linitrd 159*e9953b72SHeiko Carstens larl %r13,.L_hdr 160*e9953b72SHeiko Carstens clc 0(3,%r4),0(%r13) # if it is HDRx 1618282cd64SVasily Gorbik bz .Lagain1 # skip dataset header 162*e9953b72SHeiko Carstens larl %r13,.L_eof 163*e9953b72SHeiko Carstens clc 0(3,%r4),0(%r13) # if it is EOFx 1648282cd64SVasily Gorbik bz .Lagain1 # skip dateset trailer 1655ecb2da6SSven Schnelle 1665ecb2da6SSven Schnelle lr %r5,%r2 1675ecb2da6SSven Schnelle la %r6,COMMAND_LINE-PARMAREA(%r12) 1685ecb2da6SSven Schnelle lr %r7,%r2 1695ecb2da6SSven Schnelle ahi %r7,1 1705ecb2da6SSven Schnelle mvcl %r6,%r4 1718282cd64SVasily Gorbik.Lnopf: 1728282cd64SVasily Gorbik 1738282cd64SVasily Gorbik# 1748282cd64SVasily Gorbik# load ramdisk from ipl device 1758282cd64SVasily Gorbik# 1768282cd64SVasily Gorbik.Lagain2: 1778282cd64SVasily Gorbik l %r2,.Linitrd # addr of ramdisk 1788282cd64SVasily Gorbik st %r2,INITRD_START+ARCH_OFFSET-PARMAREA(%r12) 1798282cd64SVasily Gorbik bas %r14,.Lloader # load ramdisk 1808282cd64SVasily Gorbik st %r2,INITRD_SIZE+ARCH_OFFSET-PARMAREA(%r12) # store size of rd 1818282cd64SVasily Gorbik ltr %r2,%r2 1828282cd64SVasily Gorbik bnz .Lrdcont 1838282cd64SVasily Gorbik st %r2,INITRD_START+ARCH_OFFSET-PARMAREA(%r12) # no ramdisk found 1848282cd64SVasily Gorbik.Lrdcont: 1858282cd64SVasily Gorbik l %r2,.Linitrd 1868282cd64SVasily Gorbik 187*e9953b72SHeiko Carstens larl %r13,.L_hdr # skip HDRx and EOFx 188*e9953b72SHeiko Carstens clc 0(3,%r2),0(%r13) 1898282cd64SVasily Gorbik bz .Lagain2 190*e9953b72SHeiko Carstens larl %r13,.L_eof 191*e9953b72SHeiko Carstens clc 0(3,%r2),0(%r13) 1928282cd64SVasily Gorbik bz .Lagain2 1938282cd64SVasily Gorbik 1948282cd64SVasily Gorbik# 1958282cd64SVasily Gorbik# reset files in VM reader 1968282cd64SVasily Gorbik# 1978282cd64SVasily Gorbik stidp .Lcpuid # store cpuid 1988282cd64SVasily Gorbik tm .Lcpuid,0xff # running VM ? 1998282cd64SVasily Gorbik bno .Lnoreset 2008282cd64SVasily Gorbik la %r2,.Lreset 2018282cd64SVasily Gorbik lhi %r3,26 2028282cd64SVasily Gorbik diag %r2,%r3,8 2038282cd64SVasily Gorbik la %r5,.Lirb 2048282cd64SVasily Gorbik stsch 0(%r5) # check if irq is pending 2058282cd64SVasily Gorbik tm 30(%r5),0x0f # by verifying if any of the 2068282cd64SVasily Gorbik bnz .Lwaitforirq # activity or status control 2078282cd64SVasily Gorbik tm 31(%r5),0xff # bits is set in the schib 2088282cd64SVasily Gorbik bz .Lnoreset 2098282cd64SVasily Gorbik.Lwaitforirq: 2108282cd64SVasily Gorbik bas %r14,.Lirqwait # wait for IO interrupt 2118282cd64SVasily Gorbik c %r1,__LC_SUBCHANNEL_ID # compare subchannel number 2128282cd64SVasily Gorbik bne .Lwaitforirq 2138282cd64SVasily Gorbik la %r5,.Lirb 2148282cd64SVasily Gorbik tsch 0(%r5) 2158282cd64SVasily Gorbik.Lnoreset: 2168282cd64SVasily Gorbik b .Lnoload 2178282cd64SVasily Gorbik 2188282cd64SVasily Gorbik# 2198282cd64SVasily Gorbik# everything loaded, go for it 2208282cd64SVasily Gorbik# 2218282cd64SVasily Gorbik.Lnoload: 2228282cd64SVasily Gorbik l %r1,.Lstartup 2238282cd64SVasily Gorbik br %r1 2248282cd64SVasily Gorbik 2258282cd64SVasily Gorbik.Linitrd:.long _end # default address of initrd 2268282cd64SVasily Gorbik.Lparm: .long PARMAREA 2278282cd64SVasily Gorbik.Lstartup: .long startup 2288282cd64SVasily Gorbik.Lreset:.byte 0xc3,0xc8,0xc1,0xd5,0xc7,0xc5,0x40,0xd9,0xc4,0xd9,0x40 2298282cd64SVasily Gorbik .byte 0xc1,0xd3,0xd3,0x40,0xd2,0xc5,0xc5,0xd7,0x40,0xd5,0xd6 2308282cd64SVasily Gorbik .byte 0xc8,0xd6,0xd3,0xc4 # "change rdr all keep nohold" 2318282cd64SVasily Gorbik.L_eof: .long 0xc5d6c600 /* C'EOF' */ 2328282cd64SVasily Gorbik.L_hdr: .long 0xc8c4d900 /* C'HDR' */ 2338282cd64SVasily Gorbik .align 8 2348282cd64SVasily Gorbik.Lcpuid:.fill 8,1,0 2358282cd64SVasily Gorbik 2368282cd64SVasily Gorbik# 2378b6bd6f2SAlexander Egorenkov# normal startup-code, running in absolute addressing mode 2388282cd64SVasily Gorbik# this is called either by the ipl loader or directly by PSW restart 2398282cd64SVasily Gorbik# or linload or SALIPL 2408282cd64SVasily Gorbik# 241834979c2SHeiko Carstens .org STARTUP_NORMAL_OFFSET - IPL_START 242ec55d1e1SVasily GorbikSYM_CODE_START(startup) 243ec55d1e1SVasily Gorbik j startup_normal 244834979c2SHeiko Carstens .org EP_OFFSET - IPL_START 2458282cd64SVasily Gorbik# 2468282cd64SVasily Gorbik# This is a list of s390 kernel entry points. At address 0x1000f the number of 2478282cd64SVasily Gorbik# valid entry points is stored. 2488282cd64SVasily Gorbik# 2498282cd64SVasily Gorbik# IMPORTANT: Do not change this table, it is s390 kernel ABI! 2508282cd64SVasily Gorbik# 251627c9b62SVasily Gorbik .ascii EP_STRING 2528282cd64SVasily Gorbik .byte 0x00,0x01 2538282cd64SVasily Gorbik# 2548b6bd6f2SAlexander Egorenkov# kdump startup-code, running in 64 bit absolute addressing mode 2558282cd64SVasily Gorbik# 256834979c2SHeiko Carstens .org STARTUP_KDUMP_OFFSET - IPL_START 257ec55d1e1SVasily Gorbik j startup_kdump 258ec55d1e1SVasily GorbikSYM_CODE_END(startup) 259ec55d1e1SVasily GorbikSYM_CODE_START_LOCAL(startup_normal) 2608282cd64SVasily Gorbik mvi __LC_AR_MODE_ID,1 # set esame flag 2618282cd64SVasily Gorbik slr %r0,%r0 # set cpuid to zero 2628282cd64SVasily Gorbik lhi %r1,2 # mode 2 = esame (dump) 2638282cd64SVasily Gorbik sigp %r1,%r0,0x12 # switch to esame mode 2648282cd64SVasily Gorbik bras %r13,0f 2658282cd64SVasily Gorbik .fill 16,4,0x0 2668282cd64SVasily Gorbik0: lmh %r0,%r15,0(%r13) # clear high-order half of gprs 2678282cd64SVasily Gorbik sam64 # switch to 64 bit addressing mode 268*e9953b72SHeiko Carstens larl %r13,.Lext_new_psw 269*e9953b72SHeiko Carstens mvc __LC_EXT_NEW_PSW(16),0(%r13) 270*e9953b72SHeiko Carstens larl %r13,.Lpgm_new_psw 271*e9953b72SHeiko Carstens mvc __LC_PGM_NEW_PSW(16),0(%r13) 272*e9953b72SHeiko Carstens larl %r13,.Lio_new_psw 273*e9953b72SHeiko Carstens mvc __LC_IO_NEW_PSW(16),0(%r13) 2748282cd64SVasily Gorbik xc 0x200(256),0x200 # partially clear lowcore 2758282cd64SVasily Gorbik xc 0x300(256),0x300 2768282cd64SVasily Gorbik xc 0xe00(256),0xe00 2778282cd64SVasily Gorbik xc 0xf00(256),0xf00 278*e9953b72SHeiko Carstens larl %r13,.Lctl 279*e9953b72SHeiko Carstens lctlg %c0,%c15,0(%r13) # load control registers 2808282cd64SVasily Gorbik stcke __LC_BOOT_CLOCK 2818282cd64SVasily Gorbik mvc __LC_LAST_UPDATE_CLOCK(8),__LC_BOOT_CLOCK+1 282*e9953b72SHeiko Carstens larl %r13,6f 283*e9953b72SHeiko Carstens spt 0(%r13) 284*e9953b72SHeiko Carstens mvc __LC_LAST_UPDATE_TIMER(8),0(%r13) 285256d78d0SAlexander Egorenkov larl %r15,_stack_end-STACK_FRAME_OVERHEAD 286f1d3c532SAlexander Egorenkov brasl %r14,sclp_early_setup_buffer 2878282cd64SVasily Gorbik brasl %r14,verify_facilities 2888f75582aSVasily Gorbik brasl %r14,startup_kernel 289ec55d1e1SVasily GorbikSYM_CODE_END(startup_normal) 2908282cd64SVasily Gorbik 2918282cd64SVasily Gorbik .align 8 2928282cd64SVasily Gorbik6: .long 0x7fffffff,0xffffffff 29313b5bd8aSVasily Gorbik.Lext_new_psw: 29413b5bd8aSVasily Gorbik .quad 0x0002000180000000,0x1b0 # disabled wait 29513b5bd8aSVasily Gorbik.Lpgm_new_psw: 29613b5bd8aSVasily Gorbik .quad 0x0000000180000000,startup_pgm_check_handler 29713b5bd8aSVasily Gorbik.Lio_new_psw: 29813b5bd8aSVasily Gorbik .quad 0x0002000180000000,0x1f0 # disabled wait 299584315edSAlexander Gordeev.Lctl: .quad 0x04040000 # cr0: AFP registers & secondary space 300584315edSAlexander Gordeev .quad 0 # cr1: primary space segment table 301584315edSAlexander Gordeev .quad 0 # cr2: dispatchable unit control table 302584315edSAlexander Gordeev .quad 0 # cr3: instruction authorization 303584315edSAlexander Gordeev .quad 0xffff # cr4: instruction authorization 304584315edSAlexander Gordeev .quad 0 # cr5: primary-aste origin 305584315edSAlexander Gordeev .quad 0 # cr6: I/O interrupts 306584315edSAlexander Gordeev .quad 0 # cr7: secondary space segment table 307584315edSAlexander Gordeev .quad 0x0000000000008000 # cr8: access registers translation 308584315edSAlexander Gordeev .quad 0 # cr9: tracing off 309584315edSAlexander Gordeev .quad 0 # cr10: tracing off 310584315edSAlexander Gordeev .quad 0 # cr11: tracing off 311584315edSAlexander Gordeev .quad 0 # cr12: tracing off 312584315edSAlexander Gordeev .quad 0 # cr13: home space segment table 313584315edSAlexander Gordeev .quad 0xc0000000 # cr14: machine check handling off 314584315edSAlexander Gordeev .quad 0 # cr15: linkage stack operations 315a80313ffSGerald Schaefer 3168282cd64SVasily Gorbik#include "head_kdump.S" 3178282cd64SVasily Gorbik 3188282cd64SVasily Gorbik# 319da9ed30dSVasily Gorbik# This program check is active immediately after kernel start 320da9ed30dSVasily Gorbik# and until early_pgm_check_handler is set in kernel/early.c 321da9ed30dSVasily Gorbik# It simply saves general/control registers and psw in 322da9ed30dSVasily Gorbik# the save area and does disabled wait with a faulty address. 323da9ed30dSVasily Gorbik# 324ec55d1e1SVasily GorbikSYM_CODE_START_LOCAL(startup_pgm_check_handler) 3252835c2eaSVasily Gorbik stmg %r8,%r15,__LC_SAVE_AREA_SYNC 3262835c2eaSVasily Gorbik la %r8,4095 3272835c2eaSVasily Gorbik stctg %c0,%c15,__LC_CREGS_SAVE_AREA-4095(%r8) 3282835c2eaSVasily Gorbik stmg %r0,%r7,__LC_GPREGS_SAVE_AREA-4095(%r8) 3292835c2eaSVasily Gorbik mvc __LC_GPREGS_SAVE_AREA-4095+64(64,%r8),__LC_SAVE_AREA_SYNC 3302835c2eaSVasily Gorbik mvc __LC_PSW_SAVE_AREA-4095(16,%r8),__LC_PGM_OLD_PSW 331da9ed30dSVasily Gorbik mvc __LC_RETURN_PSW(16),__LC_PGM_OLD_PSW 332da9ed30dSVasily Gorbik ni __LC_RETURN_PSW,0xfc # remove IO and EX bits 333da9ed30dSVasily Gorbik ni __LC_RETURN_PSW+1,0xfb # remove MCHK bit 334da9ed30dSVasily Gorbik oi __LC_RETURN_PSW+1,0x2 # set wait state bit 3352835c2eaSVasily Gorbik larl %r9,.Lold_psw_disabled_wait 3362835c2eaSVasily Gorbik stg %r9,__LC_PGM_NEW_PSW+8 337256d78d0SAlexander Egorenkov larl %r15,_dump_info_stack_end-STACK_FRAME_OVERHEAD 338724dc336SVasily Gorbik brasl %r14,print_pgm_check_info 339724dc336SVasily Gorbik.Lold_psw_disabled_wait: 3402835c2eaSVasily Gorbik la %r8,4095 3412835c2eaSVasily Gorbik lmg %r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r8) 342da9ed30dSVasily Gorbik lpswe __LC_RETURN_PSW # disabled wait 343ec55d1e1SVasily GorbikSYM_CODE_END(startup_pgm_check_handler) 344