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Commit 9be5f34f3f00828dfe4012578b6467a31f408eab

Authored by Heiko Carstens
Committed by Martin Schwidefsky
1 parent 8fe234d3c8
Exists in smarc-l5.0.0_1.0.0-ga and in 5 other branches imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga

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>

Showing 2 changed files with 0 additions and 6 deletions Side-by-side Diff

arch/s390/kernel/head31.S
Diff comments   View file @ 9be5f34
... ... @@ -78,10 +78,7 @@
78 78  
79 79 ENTRY(_ehead)
80 80  
81   -#ifdef CONFIG_SHARED_KERNEL
82 81 .org 0x100000 - 0x11000 # head.o ends at 0x11000
83   -#endif
84   -
85 82 #
86 83 # startup-code, running in absolute addressing mode
87 84 #
arch/s390/kernel/head64.S
Diff comments   View file @ 9be5f34
... ... @@ -76,10 +76,7 @@
76 76  
77 77 ENTRY(_ehead)
78 78  
79   -#ifdef CONFIG_SHARED_KERNEL
80 79 .org 0x100000 - 0x11000 # head.o ends at 0x11000
81   -#endif
82   -
83 80 #
84 81 # startup-code, running in absolute addressing mode
85 82 #