[S390] head.S code moving.
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
committed by
Martin Schwidefsky
Martin Schwidefsky
parent
138c014dcb
commit
b1b7030691
@@ -1,7 +1,7 @@
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/*
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* arch/s390/kernel/head31.S
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*
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* (C) Copyright IBM Corp. 2005
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* Copyright (C) IBM Corp. 2005,2006
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*
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* Author(s): Hartmut Penner <hp@de.ibm.com>
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* Martin Schwidefsky <schwidefsky@de.ibm.com>
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@@ -16,12 +16,31 @@
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# or linload or SALIPL
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#
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.org 0x10000
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startup:basr %r13,0 # get base
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.LPG1: l %r1, .Lget_ipl_device_addr-.LPG1(%r13)
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basr %r14, %r1
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startup:basr %r13,0 # get base
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.LPG0: l %r13,0f-.LPG0(%r13)
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b 0(%r13)
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0: .long startup_continue
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#
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# params at 10400 (setup.h)
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#
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.org PARMAREA
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.long 0,0 # IPL_DEVICE
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.long 0,RAMDISK_ORIGIN # INITRD_START
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.long 0,RAMDISK_SIZE # INITRD_SIZE
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.org COMMAND_LINE
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.byte "root=/dev/ram0 ro"
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.byte 0
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.org 0x11000
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startup_continue:
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basr %r13,0 # get base
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.LPG1: GET_IPL_DEVICE
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lctl %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
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la %r12,_pstart-.LPG1(%r13) # pointer to parameter area
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# move IPL device to lowcore
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l %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
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# move IPL device to lowcore
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mvc __LC_IPLDEV(4),IPL_DEVICE-PARMAREA(%r12)
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#
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@@ -51,8 +70,8 @@ startup:basr %r13,0 # get base
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a %r1,__LC_EXT_NEW_PSW+4 # set handler
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st %r1,__LC_EXT_NEW_PSW+4
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la %r4,_pstart-.LPG1(%r13) # %r4 is our index for sccb stuff
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la %r1, .Lsccb-PARMAREA(%r4) # our sccb
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l %r4,.Lsccbaddr-.LPG1(%r13) # %r4 is our index for sccb stuff
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lr %r1,%r4 # our sccb
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.insn rre,0xb2200000,%r2,%r1 # service call
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ipm %r1
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srl %r1,28 # get cc code
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@@ -63,7 +82,7 @@ startup:basr %r13,0 # get base
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be .Lservicecall-.LPG1(%r13)
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lpsw .Lwaitsclp-.LPG1(%r13)
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.Lsclph:
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lh %r1,.Lsccbr-PARMAREA(%r4)
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lh %r1,.Lsccbr-.Lsccb(%r4)
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chi %r1,0x10 # 0x0010 is the sucess code
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je .Lprocsccb # let's process the sccb
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chi %r1,0x1f0
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@@ -74,7 +93,7 @@ startup:basr %r13,0 # get base
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b .Lservicecall-.LPG1(%r13)
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.Lprocsccb:
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lhi %r1,0
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icm %r1,3,.Lscpincr1-PARMAREA(%r4) # use this one if != 0
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icm %r1,3,.Lscpincr1-.Lsccb(%r4) # use this one if != 0
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jnz .Lscnd
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lhi %r1,0x800 # otherwise report 2GB
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.Lscnd:
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@@ -84,10 +103,10 @@ startup:basr %r13,0 # get base
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lr %r1,%r3
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.Lno2gb:
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xr %r3,%r3 # same logic
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ic %r3,.Lscpa1-PARMAREA(%r4)
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ic %r3,.Lscpa1-.Lsccb(%r4)
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chi %r3,0x00
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jne .Lcompmem
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l %r3,.Lscpa2-PARMAREA(%r4)
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l %r3,.Lscpa2-.Lsccb(%r4)
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.Lcompmem:
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mr %r2,%r1 # mem in MB on 128-bit
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l %r1,.Lonemb-.LPG1(%r13)
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@@ -95,8 +114,6 @@ startup:basr %r13,0 # get base
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b .Lfchunk-.LPG1(%r13)
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.align 4
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.Lget_ipl_device_addr:
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.long .Lget_ipl_device
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.Lpmask:
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.byte 0
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.align 8
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@@ -242,6 +259,8 @@ startup:basr %r13,0 # get base
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.long 0 # cr13: home space segment table
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.long 0xc0000000 # cr14: machine check handling off
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.long 0 # cr15: linkage stack operations
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.Lduct: .long 0,0,0,0,0,0,0,0
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.long 0,0,0,0,0,0,0,0
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.Lpcmem:.long 0x00080000,0x80000000 + .Lchkmem
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.Lpcfpu:.long 0x00080000,0x80000000 + .Lchkfpu
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.Lpccsp:.long 0x00080000,0x80000000 + .Lchkcsp
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@@ -252,25 +271,9 @@ startup:basr %r13,0 # get base
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.Lmflags:.long machine_flags
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.Lbss_bgn: .long __bss_start
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.Lbss_end: .long _end
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.org PARMAREA-64
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.Lduct: .long 0,0,0,0,0,0,0,0
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.long 0,0,0,0,0,0,0,0
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#
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# params at 10400 (setup.h)
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#
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.org PARMAREA
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.global _pstart
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_pstart:
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.long 0,0 # IPL_DEVICE
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.long 0,RAMDISK_ORIGIN # INITRD_START
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.long 0,RAMDISK_SIZE # INITRD_SIZE
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.org COMMAND_LINE
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.byte "root=/dev/ram0 ro"
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.byte 0
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.org 0x11000
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.Lparmaddr: .long PARMAREA
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.Lsccbaddr: .long .Lsccb
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.align 4096
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.Lsccb:
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.hword 0x1000 # length, one page
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.byte 0x00,0x00,0x00
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@@ -287,18 +290,14 @@ _pstart:
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.Lscpincr2:
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.quad 0x00
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.fill 3984,1,0
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.org 0x12000
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.global _pend
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_pend:
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GET_IPL_DEVICE
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.align 4096
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#ifdef CONFIG_SHARED_KERNEL
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.org 0x100000
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#endif
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#
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# startup-code, running in virtual mode
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# startup-code, running in absolute addressing mode
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#
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.globl _stext
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_stext: basr %r13,0 # get base
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