cbb870c822
Use asm offsets to make sure the offset defines to struct _lowcore and its layout don't get out of sync. Also add a BUILD_BUG_ON() which checks that the size of the structure is sane. And while being at it change those sites which use odd casts to access the current lowcore. These should use S390_lowcore instead. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
110 lines
3.2 KiB
ArmAsm
110 lines
3.2 KiB
ArmAsm
/*
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* Copyright IBM Corp 2000,2009
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* Author(s): Holger Smolinski <Holger.Smolinski@de.ibm.com>,
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* Denis Joseph Barrow,
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*/
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#include <asm/asm-offsets.h>
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#
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# do_reipl_asm
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# Parameter: r2 = schid of reipl device
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#
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.globl do_reipl_asm
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do_reipl_asm: basr %r13,0
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.Lpg0: lpswe .Lnewpsw-.Lpg0(%r13)
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.Lpg1: # do store status of all registers
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stg %r1,.Lregsave-.Lpg0(%r13)
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lghi %r1,0x1000
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stmg %r0,%r15,__LC_GPREGS_SAVE_AREA-0x1000(%r1)
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lg %r0,.Lregsave-.Lpg0(%r13)
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stg %r0,__LC_GPREGS_SAVE_AREA-0x1000+8(%r1)
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stctg %c0,%c15,__LC_CREGS_SAVE_AREA-0x1000(%r1)
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stam %a0,%a15,__LC_AREGS_SAVE_AREA-0x1000(%r1)
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lg %r10,.Ldump_pfx-.Lpg0(%r13)
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mvc __LC_PREFIX_SAVE_AREA-0x1000(4,%r1),0(%r10)
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stfpc __LC_FP_CREG_SAVE_AREA-0x1000(%r1)
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stckc .Lclkcmp-.Lpg0(%r13)
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mvc __LC_CLOCK_COMP_SAVE_AREA-0x1000(7,%r1),.Lclkcmp-.Lpg0(%r13)
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stpt __LC_CPU_TIMER_SAVE_AREA-0x1000(%r1)
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stg %r13, __LC_PSW_SAVE_AREA-0x1000+8(%r1)
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lctlg %c6,%c6,.Lall-.Lpg0(%r13)
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lgr %r1,%r2
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mvc __LC_PGM_NEW_PSW(16),.Lpcnew-.Lpg0(%r13)
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stsch .Lschib-.Lpg0(%r13)
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oi .Lschib+5-.Lpg0(%r13),0x84
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.Lecs: xi .Lschib+27-.Lpg0(%r13),0x01
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msch .Lschib-.Lpg0(%r13)
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lghi %r0,5
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.Lssch: ssch .Liplorb-.Lpg0(%r13)
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jz .L001
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brct %r0,.Lssch
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bas %r14,.Ldisab-.Lpg0(%r13)
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.L001: mvc __LC_IO_NEW_PSW(16),.Lionew-.Lpg0(%r13)
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.Ltpi: lpswe .Lwaitpsw-.Lpg0(%r13)
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.Lcont: c %r1,__LC_SUBCHANNEL_ID
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jnz .Ltpi
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clc __LC_IO_INT_PARM(4),.Liplorb-.Lpg0(%r13)
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jnz .Ltpi
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tsch .Liplirb-.Lpg0(%r13)
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tm .Liplirb+9-.Lpg0(%r13),0xbf
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jz .L002
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bas %r14,.Ldisab-.Lpg0(%r13)
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.L002: tm .Liplirb+8-.Lpg0(%r13),0xf3
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jz .L003
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bas %r14,.Ldisab-.Lpg0(%r13)
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.L003: st %r1,__LC_SUBCHANNEL_ID
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lhi %r1,0 # mode 0 = esa
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slr %r0,%r0 # set cpuid to zero
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sigp %r1,%r0,0x12 # switch to esa mode
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lpsw 0
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.Ldisab: sll %r14,1
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srl %r14,1 # need to kill hi bit to avoid specification exceptions.
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st %r14,.Ldispsw+12-.Lpg0(%r13)
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lpswe .Ldispsw-.Lpg0(%r13)
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.align 8
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.Lclkcmp: .quad 0x0000000000000000
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.Lall: .quad 0x00000000ff000000
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.Ldump_pfx: .quad dump_prefix_page
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.Lregsave: .quad 0x0000000000000000
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.align 16
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/*
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* These addresses have to be 31 bit otherwise
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* the sigp will throw a specifcation exception
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* when switching to ESA mode as bit 31 be set
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* in the ESA psw.
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* Bit 31 of the addresses has to be 0 for the
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* 31bit lpswe instruction a fact they appear to have
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* ommited from the pop.
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*/
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.Lnewpsw: .quad 0x0000000080000000
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.quad .Lpg1
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.Lpcnew: .quad 0x0000000080000000
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.quad .Lecs
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.Lionew: .quad 0x0000000080000000
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.quad .Lcont
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.Lwaitpsw: .quad 0x0202000080000000
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.quad .Ltpi
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.Ldispsw: .quad 0x0002000080000000
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.quad 0x0000000000000000
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.Liplccws: .long 0x02000000,0x60000018
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.long 0x08000008,0x20000001
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.Liplorb: .long 0x0049504c,0x0040ff80
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.long 0x00000000+.Liplccws
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.Lschib: .long 0x00000000,0x00000000
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.long 0x00000000,0x00000000
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.long 0x00000000,0x00000000
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.long 0x00000000,0x00000000
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.long 0x00000000,0x00000000
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.long 0x00000000,0x00000000
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.Liplirb: .long 0x00000000,0x00000000
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.long 0x00000000,0x00000000
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.long 0x00000000,0x00000000
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.long 0x00000000,0x00000000
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.long 0x00000000,0x00000000
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.long 0x00000000,0x00000000
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.long 0x00000000,0x00000000
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.long 0x00000000,0x00000000
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