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[S390] head.S code moving.

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There is almost no room left for any new code between 0x10000
and 0x10480. Move the code from 0x10000 to 0x11000.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2006-06-29 14:58:17 +02:00
committed by Martin Schwidefsky
parent 138c014dcb
commit b1b7030691
3 changed files with 88 additions and 90 deletions
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79
arch/s390/kernel/head64.S
View File

@@ -1,7 +1,7 @@
/*
* arch/s390/kernel/head64.S
*
* (C) Copyright IBM Corp. 1999,2005
* Copyright (C) IBM Corp. 1999,2006
*
* Author(s): Hartmut Penner <hp@de.ibm.com>
* Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -15,18 +15,37 @@
# this is called either by the ipl loader or directly by PSW restart
# or linload or SALIPL
#
.org 0x10000
startup:basr %r13,0 # get base
.org 0x10000
startup:basr %r13,0 # get base
.LPG0: l %r13,0f-.LPG0(%r13)
b 0(%r13)
0: .long startup_continue
#
# params at 10400 (setup.h)
#
.org PARMAREA
.quad 0 # IPL_DEVICE
.quad RAMDISK_ORIGIN # INITRD_START
.quad RAMDISK_SIZE # INITRD_SIZE
.org COMMAND_LINE
.byte "root=/dev/ram0 ro"
.byte 0
.org 0x11000
startup_continue:
basr %r13,0 # get base
.LPG1: sll %r13,1 # remove high order bit
srl %r13,1
l %r1,.Lget_ipl_device_addr-.LPG1(%r13)
basr %r14,%r1
GET_IPL_DEVICE
lhi %r1,1 # mode 1 = esame
slr %r0,%r0 # set cpuid to zero
sigp %r1,%r0,0x12 # switch to esame mode
sam64 # switch to 64 bit mode
lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
larl %r12,_pstart # pointer to parameter area
lg %r12,.Lparmaddr-.LPG1(%r13)# pointer to parameter area
# move IPL device to lowcore
mvc __LC_IPLDEV(4),IPL_DEVICE+4-PARMAREA(%r12)
@@ -55,8 +74,8 @@ startup:basr %r13,0 # get base
larl %r1,.Lsclph
stg %r1,__LC_EXT_NEW_PSW+8 # set handler
larl %r4,_pstart # %r4 is our index for sccb stuff
la %r1,.Lsccb-PARMAREA(%r4) # our sccb
larl %r4,.Lsccb # %r4 is our index for sccb stuff
lgr %r1,%r4 # our sccb
.insn rre,0xb2200000,%r2,%r1 # service call
ipm %r1
srl %r1,28 # get cc code
@@ -67,7 +86,7 @@ startup:basr %r13,0 # get base
be .Lservicecall-.LPG1(%r13)
lpswe .Lwaitsclp-.LPG1(%r13)
.Lsclph:
lh %r1,.Lsccbr-PARMAREA(%r4)
lh %r1,.Lsccbr-.Lsccb(%r4)
chi %r1,0x10 # 0x0010 is the sucess code
je .Lprocsccb # let's process the sccb
chi %r1,0x1f0
@@ -78,15 +97,15 @@ startup:basr %r13,0 # get base
b .Lservicecall-.LPG1(%r13)
.Lprocsccb:
lghi %r1,0
icm %r1,3,.Lscpincr1-PARMAREA(%r4) # use this one if != 0
icm %r1,3,.Lscpincr1-.Lsccb(%r4) # use this one if != 0
jnz .Lscnd
lg %r1,.Lscpincr2-PARMAREA(%r4) # otherwise use this one
lg %r1,.Lscpincr2-.Lsccb(%r4) # otherwise use this one
.Lscnd:
xr %r3,%r3 # same logic
ic %r3,.Lscpa1-PARMAREA(%r4)
ic %r3,.Lscpa1-.Lsccb(%r4)
chi %r3,0x00
jne .Lcompmem
l %r3,.Lscpa2-PARMAREA(%r4)
l %r3,.Lscpa2-.Lsccb(%r4)
.Lcompmem:
mlgr %r2,%r1 # mem in MB on 128-bit
l %r1,.Lonemb-.LPG1(%r13)
@@ -94,8 +113,6 @@ startup:basr %r13,0 # get base
b .Lfchunk-.LPG1(%r13)
.align 4
.Lget_ipl_device_addr:
.long .Lget_ipl_device
.Lpmask:
.byte 0
.align 8
@@ -242,29 +259,16 @@ startup:basr %r13,0 # get base
.quad 0 # cr13: home space segment table
.quad 0xc0000000 # cr14: machine check handling off
.quad 0 # cr15: linkage stack operations
.Lduct: .long 0,0,0,0,0,0,0,0
.long 0,0,0,0,0,0,0,0
.Lpcmsk:.quad 0x0000000180000000
.L4malign:.quad 0xffffffffffc00000
.Lscan2g:.quad 0x80000000 + 0x20000 - 8 # 2GB + 128K - 8
.Lnop: .long 0x07000700
.Lparmaddr:
.quad PARMAREA
.org PARMAREA-64
.Lduct: .long 0,0,0,0,0,0,0,0
.long 0,0,0,0,0,0,0,0
#
# params at 10400 (setup.h)
#
.org PARMAREA
.global _pstart
_pstart:
.quad 0 # IPL_DEVICE
.quad RAMDISK_ORIGIN # INITRD_START
.quad RAMDISK_SIZE # INITRD_SIZE
.org COMMAND_LINE
.byte "root=/dev/ram0 ro"
.byte 0
.org 0x11000
.align 4096
.Lsccb:
.hword 0x1000 # length, one page
.byte 0x00,0x00,0x00
@@ -281,18 +285,14 @@ _pstart:
.Lscpincr2:
.quad 0x00
.fill 3984,1,0
.org 0x12000
.global _pend
_pend:
GET_IPL_DEVICE
.align 4096
#ifdef CONFIG_SHARED_KERNEL
.org 0x100000
#endif
#
# startup-code, running in virtual mode
# startup-code, running in absolute addressing mode
#
.globl _stext
_stext: basr %r13,0 # get base
@@ -326,4 +326,3 @@ _stext: basr %r13,0 # get base
.align 8
.Ldw: .quad 0x0002000180000000,0x0000000000000000
.Laregs: .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0