Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 9be5f34f authored Oct 04, 2012 by Heiko Carstens Committed by Martin Schwidefsky Oct 09, 2012

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>

parent 8fe234d3

arch/s390/kernel/head31.S

+0 −3

Original line number	Original line	Diff line number	Diff line
	@@ -78,10 +78,7 @@ ENTRY(startup_continue)

	ENTRY(_ehead)		ENTRY(_ehead)

	#ifdef CONFIG_SHARED_KERNEL
	.org 0x100000 - 0x11000 # head.o ends at 0x11000		.org 0x100000 - 0x11000 # head.o ends at 0x11000
	#endif

	#		#
	# startup-code, running in absolute addressing mode		# startup-code, running in absolute addressing mode
	#		#

arch/s390/kernel/head64.S

+0 −3

Original line number	Original line	Diff line number	Diff line
	@@ -76,10 +76,7 @@ ENTRY(startup_continue)

	ENTRY(_ehead)		ENTRY(_ehead)

	#ifdef CONFIG_SHARED_KERNEL
	.org 0x100000 - 0x11000 # head.o ends at 0x11000		.org 0x100000 - 0x11000 # head.o ends at 0x11000
	#endif

	#		#
	# startup-code, running in absolute addressing mode		# startup-code, running in absolute addressing mode
	#		#