[PATCH] ppc64: support 64k pages
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Mon, 7 Nov 2005 00:06:55 +0000 (11:06 +1100)
committerLinus Torvalds <torvalds@g5.osdl.org>
Mon, 7 Nov 2005 00:56:47 +0000 (16:56 -0800)
commit3c726f8dee6f55e96475574e9f645327e461884c
treef67c381e8f57959aa4a94bda4c68e24253cd8171
parentf912696ab330bf539231d1f8032320f2a08b850f
[PATCH] ppc64: support 64k pages

Adds a new CONFIG_PPC_64K_PAGES which, when enabled, changes the kernel
base page size to 64K.  The resulting kernel still boots on any
hardware.  On current machines with 4K pages support only, the kernel
will maintain 16 "subpages" for each 64K page transparently.

Note that while real 64K capable HW has been tested, the current patch
will not enable it yet as such hardware is not released yet, and I'm
still verifying with the firmware architects the proper to get the
information from the newer hypervisors.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
52 files changed:
arch/powerpc/Kconfig
arch/powerpc/kernel/asm-offsets.c
arch/powerpc/kernel/cputable.c
arch/powerpc/kernel/head_64.S
arch/powerpc/kernel/lparmap.c
arch/powerpc/kernel/process.c
arch/powerpc/kernel/prom.c
arch/powerpc/kernel/setup_64.c
arch/powerpc/lib/copypage_64.S
arch/powerpc/lib/copyuser_64.S
arch/powerpc/mm/hash_low_64.S
arch/powerpc/mm/hash_native_64.c
arch/powerpc/mm/hash_utils_64.c
arch/powerpc/mm/hugetlbpage.c
arch/powerpc/mm/init_64.c
arch/powerpc/mm/mem.c
arch/powerpc/mm/pgtable_64.c
arch/powerpc/mm/ppc_mmu_32.c
arch/powerpc/mm/slb.c
arch/powerpc/mm/slb_low.S
arch/powerpc/mm/stab.c
arch/powerpc/mm/tlb_64.c
arch/powerpc/platforms/iseries/htab.c
arch/powerpc/platforms/iseries/hvlog.c
arch/powerpc/platforms/iseries/iommu.c
arch/powerpc/platforms/iseries/setup.c
arch/powerpc/platforms/iseries/vio.c
arch/powerpc/platforms/iseries/viopath.c
arch/powerpc/platforms/pseries/lpar.c
arch/ppc64/Kconfig
arch/ppc64/kernel/asm-offsets.c
arch/ppc64/kernel/head.S
arch/ppc64/kernel/pacaData.c
arch/ppc64/kernel/prom.c
include/asm-powerpc/cputable.h
include/asm-powerpc/iommu.h
include/asm-powerpc/machdep.h
include/asm-powerpc/prom.h
include/asm-powerpc/system.h
include/asm-powerpc/thread_info.h
include/asm-powerpc/tlbflush.h
include/asm-ppc64/mmu.h
include/asm-ppc64/mmu_context.h
include/asm-ppc64/paca.h
include/asm-ppc64/page.h
include/asm-ppc64/pgalloc.h
include/asm-ppc64/pgtable-4k.h [new file with mode: 0644]
include/asm-ppc64/pgtable-64k.h [new file with mode: 0644]
include/asm-ppc64/pgtable.h
include/asm-ppc64/prom.h
include/asm-ppc64/system.h
mm/hugetlb.c