[S390] Memory detection fixes.

VMALLOC_END on 31bit should be 0x8000000UL instead of 0x7fffffffL.
The page mask which is used to make sure memory_end is on 4MB/2MB
boundary is wrong and not needed. Therefore remove it.
Make sure a vmalloc area does also exist and work on (future)
machines with 4TB and more memory.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S
index 9817c327aab1..4388b3309e0c 100644
--- a/arch/s390/kernel/head31.S
+++ b/arch/s390/kernel/head31.S
@@ -177,8 +177,6 @@ startup_continue:
         st      %r0,4(%r3)              # store size of chunk
         st      %r6,8(%r3)              # store type of chunk
         la      %r3,12(%r3)
-        l       %r4,.Lmemsize-.LPG1(%r13)        # address of variable memory_size
-        st      %r5,0(%r4)              # store last end to memory size
         ahi     %r10,-1                 # update chunk number
 .Lchkloop:
         lr      %r6,%r7                 # set access code to last cc
@@ -293,7 +291,6 @@ startup_continue:
 .Lpcmvpg:.long  0x00080000,0x80000000 + .Lchkmvpg
 .Lpcidte:.long  0x00080000,0x80000000 + .Lchkidte
 .Lpcdiag9c:.long 0x00080000,0x80000000 + .Lchkdiag9c
-.Lmemsize:.long memory_size
 .Lmchunk:.long  memory_chunk
 .Lmflags:.long  machine_flags
 .Lbss_bgn:  .long __bss_start