diff options
| author | Andy Whitcroft <apw@shadowen.org> | 2007-10-16 10:24:17 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 18:42:51 +0200 |
| commit | d29eff7bca60c9ee401d691d4562a4abca8de543 (patch) | |
| tree | 86715dfec0470a59d3bbad032b3032321f101766 /arch/powerpc/Kconfig | |
| parent | SPARC64: SPARSEMEM_VMEMMAP support (diff) | |
| download | linux-d29eff7bca60c9ee401d691d4562a4abca8de543.tar.xz linux-d29eff7bca60c9ee401d691d4562a4abca8de543.zip | |
ppc64: SPARSEMEM_VMEMMAP support
Enable virtual memmap support for SPARSEMEM on PPC64 systems. Slice a 16th
off the end of the linear mapping space and use that to hold the vmemmap.
Uses the same size mapping as uses in the linear 1:1 kernel mapping.
[pbadari@gmail.com: fix warning]
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 037664d496d7..5e001ad588a7 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -295,6 +295,7 @@ config ARCH_FLATMEM_ENABLE config ARCH_SPARSEMEM_ENABLE def_bool y depends on PPC64 + select SPARSEMEM_VMEMMAP_ENABLE config ARCH_SPARSEMEM_DEFAULT def_bool y |