s390/mm: let kernel text section always begin at 1MB

Let the kernel text section always begin at 1MB. This allows to always have a large frame in the identity mapping of the kernel image for beginning of the text section, if the machine has EDAT1 support. Moving the beginning from 64K to 1MB doesn't cost any memory, since we make the memory between 64K and 1MB available for the page allocator. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
git-mirror · Oct 9, 2012 · 9be5f34 · 9be5f34
1 parent 8fe234d
commit 9be5f34
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diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S
@@ -78,10 +78,7 @@ ENTRY(startup_continue)
 
 ENTRY(_ehead)
 
-#ifdef CONFIG_SHARED_KERNEL
 	.org	0x100000 - 0x11000	# head.o ends at 0x11000
-#endif
-
 #
 # startup-code, running in absolute addressing mode
 #

diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
@@ -76,10 +76,7 @@ ENTRY(startup_continue)
 
 ENTRY(_ehead)
 
-#ifdef CONFIG_SHARED_KERNEL
 	.org	0x100000 - 0x11000	# head.o ends at 0x11000
-#endif
-
 #
 # startup-code, running in absolute addressing mode
 #