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-rw-r--r--arch/s390/kernel/head64.S43
1 files changed, 15 insertions, 28 deletions
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index 791cb9000e86..6d14ad42ba88 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -48,11 +48,23 @@ ENTRY(startup_continue)
# Early machine initialization and detection functions.
#
brasl %r14,startup_init
- lpswe .Lentry-.LPG1(13) # jump to _stext in primary-space,
- # virtual and never return ...
+
+# check control registers
+ stctg %c0,%c15,0(%r15)
+ oi 6(%r15),0x60 # enable sigp emergency & external call
+ oi 4(%r15),0x10 # switch on low address proctection
+ lctlg %c0,%c15,0(%r15)
+
+ lam 0,15,.Laregs-.LPG1(%r13) # load acrs needed by uaccess
+ brasl %r14,start_kernel # go to C code
+#
+# We returned from start_kernel ?!? PANIK
+#
+ basr %r13,0
+ lpswe .Ldw-.(%r13) # load disabled wait psw
+
.align 16
.LPG1:
-.Lentry:.quad 0x0000000180000000,_stext
.Lctl: .quad 0x04040000 # cr0: AFP registers & secondary space
.quad 0 # cr1: primary space segment table
.quad .Lduct # cr2: dispatchable unit control table
@@ -85,30 +97,5 @@ ENTRY(startup_continue)
.endr
.Llinkage_stack:
.long 0,0,0x89000000,0,0,0,0x8a000000,0
-
-ENTRY(_ehead)
-
- .org 0x100000 - 0x11000 # head.o ends at 0x11000
-#
-# startup-code, running in absolute addressing mode
-#
-ENTRY(_stext)
- basr %r13,0 # get base
-.LPG3:
-# check control registers
- stctg %c0,%c15,0(%r15)
- oi 6(%r15),0x60 # enable sigp emergency & external call
- oi 4(%r15),0x10 # switch on low address proctection
- lctlg %c0,%c15,0(%r15)
-
- lam 0,15,.Laregs-.LPG3(%r13) # load acrs needed by uaccess
- brasl %r14,start_kernel # go to C code
-#
-# We returned from start_kernel ?!? PANIK
-#
- basr %r13,0
- lpswe .Ldw-.(%r13) # load disabled wait psw
-
- .align 8
.Ldw: .quad 0x0002000180000000,0x0000000000000000
.Laregs:.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0