]> git.karo-electronics.de Git - linux-beck.git/commit
[S390] dynamic page tables.
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Sat, 9 Feb 2008 17:24:37 +0000 (18:24 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Sat, 9 Feb 2008 17:24:41 +0000 (18:24 +0100)
commit6252d702c5311ce916caf75ed82e5c8245171c92
tree3490f27b5f888ff2c1ec915d4e7201000f37a771
parent5a216a20837c5f5fa1ca4b8ae8991ffd96b08e6f
[S390] dynamic page tables.

Add support for different number of page table levels dependent
on the highest address used for a process. This will cause a 31 bit
process to use a two level page table instead of the four level page
table that is the default after the pud has been introduced. Likewise
a normal 64 bit process will use three levels instead of four. Only
if a process runs out of the 4 tera bytes which can be addressed with
a three level page table the fourth level is dynamically added. Then
the process can use up to 8 peta byte.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
13 files changed:
arch/s390/kernel/binfmt_elf32.c
arch/s390/kernel/traps.c
arch/s390/mm/fault.c
arch/s390/mm/init.c
arch/s390/mm/mmap.c
arch/s390/mm/pgtable.c
include/asm-s390/elf.h
include/asm-s390/mmu.h
include/asm-s390/mmu_context.h
include/asm-s390/pgalloc.h
include/asm-s390/pgtable.h
include/asm-s390/processor.h
include/asm-s390/tlb.h