[S390] System z large page support.
authorGerald Schaefer <geraldsc@de.ibm.com>
Wed, 30 Apr 2008 11:38:46 +0000 (13:38 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 30 Apr 2008 11:38:47 +0000 (13:38 +0200)
commit53492b1de46a7576170e865062ffcfc93bb5650b
treebee94e5b2e8c19c1a094a25023cb82572707feb4
parent2e5061e40af88070984e3769eafb5a06022375fd
[S390] System z large page support.

This adds hugetlbfs support on System z, using both hardware large page
support if available and software large page emulation on older hardware.
Shared (large) page tables are implemented in software emulation mode,
by using page->index of the first tail page from a compound large page
to store page table information.

Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 files changed:
arch/s390/kernel/early.c
arch/s390/kernel/head64.S
arch/s390/kernel/setup.c
arch/s390/mm/Makefile
arch/s390/mm/fault.c
arch/s390/mm/hugetlbpage.c [new file with mode: 0644]
arch/s390/mm/init.c
arch/s390/mm/vmem.c
fs/Kconfig
include/asm-s390/hugetlb.h [new file with mode: 0644]
include/asm-s390/page.h
include/asm-s390/pgtable.h
include/asm-s390/setup.h
include/asm-s390/tlbflush.h