[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, 4 deletions

diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index cc6dbc57eb90..c526279e1123 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -81,8 +81,6 @@ startup_continue:
         aghi    %r1,1                   # size is one more than end
         larl    %r2,memory_chunk
         stg     %r1,8(%r2)              # store size of chunk
-        larl    %r2,memory_size
-        stg     %r1,0(%r2)              # set memory size
         j       .Ldonemem
 
 .Lslowmemdetect:
@@ -188,8 +186,6 @@ startup_continue:
         stg     %r0,8(%r3)              # store size of chunk
         st      %r6,20(%r3)             # store type of chunk
         la      %r3,24(%r3)
-        larl    %r8,memory_size
-        stg     %r5,0(%r8)              # store memory size
         ahi     %r10,-1                 # update chunk number
 .Lchkloop:
         lr      %r6,%r7                 # set access code to last cc