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-rw-r--r--arch/s390/kernel/head.S22
1 files changed, 11 insertions, 11 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