1 files changed, 3 insertions, 161 deletions

diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S
index b3dcdcdc80c0..453fd3b4edea 100644
--- a/arch/s390/kernel/head31.S
+++ b/arch/s390/kernel/head31.S
@@ -58,145 +58,6 @@ startup_continue:
         l       %r14,.Lstartup_init-.LPG1(%r13)
         basr    %r14,%r14
 
-        l       %r2,.Lrcp-.LPG1(%r13)   # Read SCP forced command word
-.Lservicecall:
-        stosm   .Lpmask-.LPG1(%r13),0x01        # authorize ext interrupts
-
-        stctl   %r0, %r0,.Lcr-.LPG1(%r13)       # get cr0
-        la      %r1,0x200               # set bit 22
-        o       %r1,.Lcr-.LPG1(%r13)    # or old cr0 with r1
-        st      %r1,.Lcr-.LPG1(%r13)
-        lctl    %r0, %r0,.Lcr-.LPG1(%r13)       # load modified cr0
-
-        mvc     __LC_EXT_NEW_PSW(8),.Lpcext-.LPG1(%r13) # set postcall psw
-        la      %r1, .Lsclph-.LPG1(%r13)
-        a       %r1,__LC_EXT_NEW_PSW+4  # set handler
-        st      %r1,__LC_EXT_NEW_PSW+4
-
-        l       %r4,.Lsccbaddr-.LPG1(%r13) # %r4 is our index for sccb stuff
-        lr      %r1,%r4                 # our sccb
-        .insn   rre,0xb2200000,%r2,%r1  # service call
-        ipm     %r1
-        srl     %r1,28                  # get cc code
-        xr      %r3, %r3
-        chi     %r1,3
-        be      .Lfchunk-.LPG1(%r13)    # leave
-        chi     %r1,2
-        be      .Lservicecall-.LPG1(%r13)
-        lpsw    .Lwaitsclp-.LPG1(%r13)
-.Lsclph:
-        lh      %r1,.Lsccbr-.Lsccb(%r4)
-        chi     %r1,0x10                # 0x0010 is the sucess code
-        je      .Lprocsccb              # let's process the sccb
-        chi     %r1,0x1f0
-        bne     .Lfchunk-.LPG1(%r13)    # unhandled error code
-        c       %r2, .Lrcp-.LPG1(%r13)  # Did we try Read SCP forced
-        bne     .Lfchunk-.LPG1(%r13)    # if no, give up
-        l       %r2, .Lrcp2-.LPG1(%r13) # try with Read SCP
-        b       .Lservicecall-.LPG1(%r13)
-.Lprocsccb:
-        lhi     %r1,0
-        icm     %r1,3,.Lscpincr1-.Lsccb(%r4) # use this one if != 0
-        jnz     .Lscnd
-        lhi     %r1,0x800               # otherwise report 2GB
-.Lscnd:
-        lhi     %r3,0x800               # limit reported memory size to 2GB
-        cr      %r1,%r3
-        jl      .Lno2gb
-        lr      %r1,%r3
-.Lno2gb:
-        xr      %r3,%r3                 # same logic
-        ic      %r3,.Lscpa1-.Lsccb(%r4)
-        chi     %r3,0x00
-        jne     .Lcompmem
-        l       %r3,.Lscpa2-.Lsccb(%r4)
-.Lcompmem:
-        mr      %r2,%r1                 # mem in MB on 128-bit
-        l       %r1,.Lonemb-.LPG1(%r13)
-        mr      %r2,%r1                 # mem size in bytes in %r3
-        b       .Lfchunk-.LPG1(%r13)
-
-        .align 4
-.Linittu:
-        .long   init_thread_union
-.Lstartup_init:
-        .long   startup_init
-.Lpmask:
-        .byte   0
-        .align  8
-.Lpcext:.long   0x00080000,0x80000000
-.Lcr:
-        .long   0x00                    # place holder for cr0
-        .align  8
-.Lwaitsclp:
-        .long 0x010a0000,0x80000000 + .Lsclph
-.Lrcp:
-        .int    0x00120001              # Read SCP forced code
-.Lrcp2:
-        .int    0x00020001              # Read SCP code
-.Lonemb:
-        .int    0x100000
-.Lfchunk:
-
-#
-# find memory chunks.
-#
-        lr      %r9,%r3                 # end of mem
-        mvc     __LC_PGM_NEW_PSW(8),.Lpcmem-.LPG1(%r13)
-        la      %r1,1                   # test in increments of 128KB
-        sll     %r1,17
-        l       %r3,.Lmchunk-.LPG1(%r13) # get pointer to memory_chunk array
-        slr     %r4,%r4                 # set start of chunk to zero
-        slr     %r5,%r5                 # set end of chunk to zero
-        slr     %r6,%r6                 # set access code to zero
-        la      %r10,MEMORY_CHUNKS      # number of chunks
-.Lloop:
-        tprot   0(%r5),0                # test protection of first byte
-        ipm     %r7
-        srl     %r7,28
-        clr     %r6,%r7                 # compare cc with last access code
-        be      .Lsame-.LPG1(%r13)
-        lhi     %r8,0                   # no program checks
-        b       .Lsavchk-.LPG1(%r13)
-.Lsame:
-        ar      %r5,%r1                 # add 128KB to end of chunk
-        bno     .Lloop-.LPG1(%r13)      # r1 < 0x80000000 -> loop
-.Lchkmem:                               # > 2GB or tprot got a program check
-        lhi     %r8,1                   # set program check flag
-.Lsavchk:
-        clr     %r4,%r5                 # chunk size > 0?
-        be      .Lchkloop-.LPG1(%r13)
-        st      %r4,0(%r3)              # store start address of chunk
-        lr      %r0,%r5
-        slr     %r0,%r4
-        st      %r0,4(%r3)              # store size of chunk
-        st      %r6,8(%r3)              # store type of chunk
-        la      %r3,12(%r3)
-        ahi     %r10,-1                 # update chunk number
-.Lchkloop:
-        lr      %r6,%r7                 # set access code to last cc
-        # we got an exception or we're starting a new
-        # chunk , we must check if we should
-        # still try to find valid memory (if we detected
-        # the amount of available storage), and if we
-        # have chunks left
-        xr      %r0,%r0
-        clr     %r0,%r9                 # did we detect memory?
-        je      .Ldonemem               # if not, leave
-        chi     %r10,0                  # do we have chunks left?
-        je      .Ldonemem
-        chi     %r8,1                   # program check ?
-        je      .Lpgmchk
-        lr      %r4,%r5                 # potential new chunk
-        alr     %r5,%r1                 # add 128KB to end of chunk
-        j       .Llpcnt
-.Lpgmchk:
-        alr     %r5,%r1                 # add 128KB to end of chunk
-        lr      %r4,%r5                 # potential new chunk
-.Llpcnt:
-        clr     %r5,%r9                 # should we go on?
-        jl      .Lloop
-.Ldonemem:
         l       %r12,.Lmflags-.LPG1(%r13) # get address of machine_flags
 #
 # find out if we have an IEEE fpu
@@ -273,7 +134,6 @@ startup_continue:
         .long   0                       # cr15: linkage stack operations
 .Lduct: .long   0,0,0,0,0,0,0,0
         .long   0,0,0,0,0,0,0,0
-.Lpcmem:.long   0x00080000,0x80000000 + .Lchkmem
 .Lpcfpu:.long   0x00080000,0x80000000 + .Lchkfpu
 .Lpccsp:.long   0x00080000,0x80000000 + .Lchkcsp
 .Lpcmvpg:.long  0x00080000,0x80000000 + .Lchkmvpg
@@ -284,7 +144,9 @@ startup_continue:
 .Lbss_bgn:  .long __bss_start
 .Lbss_end:  .long _end
 .Lparmaddr: .long PARMAREA
-.Lsccbaddr: .long .Lsccb
+.Linittu:   .long init_thread_union
+.Lstartup_init:
+            .long startup_init
 
         .globl ipl_schib
 ipl_schib:
@@ -300,26 +162,6 @@ ipl_devno:
         .word 0
 
         .org    0x12000
-.globl s390_readinfo_sccb
-s390_readinfo_sccb:
-.Lsccb:
-        .hword  0x1000                  # length, one page
-        .byte   0x00,0x00,0x00
-        .byte   0x80                    # variable response bit set
-.Lsccbr:
-        .hword  0x00                    # response code
-.Lscpincr1:
-        .hword  0x00
-.Lscpa1:
-        .byte   0x00
-        .fill   89,1,0
-.Lscpa2:
-        .int    0x00
-.Lscpincr2:
-        .quad   0x00
-        .fill   3984,1,0
-        .org    0x13000
-
 #ifdef CONFIG_SHARED_KERNEL
         .org    0x100000
 #endif