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| author | Heiko Carstens | 2015-02-12 13:08:27 +0100 |
|---|---|---|
| committer | Martin Schwidefsky | 2015-03-25 11:49:33 +0100 |
| commit | 5a79859ae0f35d25c67a03e82bf0c80592f16a39 (patch) | |
| tree | 37264d49f069812f19ced94e6ae171814fb7e498 /arch/s390/kernel/reipl.S | |
| parent | s390/smp: reenable smt after resume (diff) | |
| download | kernel-qcow2-linux-5a79859ae0f35d25c67a03e82bf0c80592f16a39.tar.gz kernel-qcow2-linux-5a79859ae0f35d25c67a03e82bf0c80592f16a39.tar.xz kernel-qcow2-linux-5a79859ae0f35d25c67a03e82bf0c80592f16a39.zip | |
s390: remove 31 bit support
Remove the 31 bit support in order to reduce maintenance cost and
effectively remove dead code. Since a couple of years there is no
distribution left that comes with a 31 bit kernel.
The 31 bit kernel also has been broken since more than a year before
anybody noticed. In addition I added a removal warning to the kernel
shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning
message") which let everybody know about the plan to remove 31 bit
code. We didn't get any response.
Given that the last 31 bit only machine was introduced in 1999 let's
remove the code.
Anybody with 31 bit user space code can still use the compat mode.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/reipl.S')
| -rw-r--r-- | arch/s390/kernel/reipl.S | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/arch/s390/kernel/reipl.S b/arch/s390/kernel/reipl.S deleted file mode 100644 index dd8016b0477e..000000000000 --- a/arch/s390/kernel/reipl.S +++ /dev/null @@ -1,92 +0,0 @@ -/* - * S390 version - * Copyright IBM Corp. 2000 - * Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com) - */ - -#include <linux/linkage.h> -#include <asm/asm-offsets.h> -#include <asm/sigp.h> - -# -# store_status: Empty implementation until kdump is supported on 31 bit -# -ENTRY(store_status) - br %r14 - -# -# do_reipl_asm -# Parameter: r2 = schid of reipl device -# -ENTRY(do_reipl_asm) - basr %r13,0 -.Lpg0: lpsw .Lnewpsw-.Lpg0(%r13) -.Lpg1: # do store status of all registers - - stm %r0,%r15,__LC_GPREGS_SAVE_AREA - stctl %c0,%c15,__LC_CREGS_SAVE_AREA - stam %a0,%a15,__LC_AREGS_SAVE_AREA - l %r10,.Ldump_pfx-.Lpg0(%r13) - mvc __LC_PREFIX_SAVE_AREA(4),0(%r10) - stckc .Lclkcmp-.Lpg0(%r13) - mvc __LC_CLOCK_COMP_SAVE_AREA(8),.Lclkcmp-.Lpg0(%r13) - stpt __LC_CPU_TIMER_SAVE_AREA - st %r13, __LC_PSW_SAVE_AREA+4 - lctl %c6,%c6,.Lall-.Lpg0(%r13) - lr %r1,%r2 - mvc __LC_PGM_NEW_PSW(8),.Lpcnew-.Lpg0(%r13) - stsch .Lschib-.Lpg0(%r13) - oi .Lschib+5-.Lpg0(%r13),0x84 -.Lecs: xi .Lschib+27-.Lpg0(%r13),0x01 - msch .Lschib-.Lpg0(%r13) - lhi %r0,5 -.Lssch: ssch .Liplorb-.Lpg0(%r13) - jz .L001 - brct %r0,.Lssch - bas %r14,.Ldisab-.Lpg0(%r13) -.L001: mvc __LC_IO_NEW_PSW(8),.Lionew-.Lpg0(%r13) -.Ltpi: lpsw .Lwaitpsw-.Lpg0(%r13) -.Lcont: c %r1,__LC_SUBCHANNEL_ID - jnz .Ltpi - clc __LC_IO_INT_PARM(4),.Liplorb-.Lpg0(%r13) - jnz .Ltpi - tsch .Liplirb-.Lpg0(%r13) - tm .Liplirb+9-.Lpg0(%r13),0xbf - jz .L002 - bas %r14,.Ldisab-.Lpg0(%r13) -.L002: tm .Liplirb+8-.Lpg0(%r13),0xf3 - jz .L003 - bas %r14,.Ldisab-.Lpg0(%r13) -.L003: st %r1,__LC_SUBCHANNEL_ID - lpsw 0 - sigp 0,0,SIGP_RESTART -.Ldisab: st %r14,.Ldispsw+4-.Lpg0(%r13) - lpsw .Ldispsw-.Lpg0(%r13) - .align 8 -.Lclkcmp: .quad 0x0000000000000000 -.Lall: .long 0xff000000 -.Ldump_pfx: .long dump_prefix_page - .align 8 -.Lnewpsw: .long 0x00080000,0x80000000+.Lpg1 -.Lpcnew: .long 0x00080000,0x80000000+.Lecs -.Lionew: .long 0x00080000,0x80000000+.Lcont -.Lwaitpsw: .long 0x020a0000,0x00000000+.Ltpi -.Ldispsw: .long 0x000a0000,0x00000000 -.Liplccws: .long 0x02000000,0x60000018 - .long 0x08000008,0x20000001 -.Liplorb: .long 0x0049504c,0x0040ff80 - .long 0x00000000+.Liplccws -.Lschib: .long 0x00000000,0x00000000 - .long 0x00000000,0x00000000 - .long 0x00000000,0x00000000 - .long 0x00000000,0x00000000 - .long 0x00000000,0x00000000 - .long 0x00000000,0x00000000 -.Liplirb: .long 0x00000000,0x00000000 - .long 0x00000000,0x00000000 - .long 0x00000000,0x00000000 - .long 0x00000000,0x00000000 - .long 0x00000000,0x00000000 - .long 0x00000000,0x00000000 - .long 0x00000000,0x00000000 - .long 0x00000000,0x00000000 |