[PATCH] Configurable NODES_SHIFT
commitc80d79d746cc48bd94b0ce4f6d4f3c90cd403aaf
authorYasunori Goto <y-goto@jp.fujitsu.com>
Tue, 11 Apr 2006 05:53:53 +0000 (10 22:53 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Tue, 11 Apr 2006 13:18:39 +0000 (11 06:18 -0700)
tree5aa8d1590d95f8fd820ad797fe03a063b592e9bf
parent653edba1a8b2ed018bdfb078131324dfbfe1dd6a
[PATCH] Configurable NODES_SHIFT

Current implementations define NODES_SHIFT in include/asm-xxx/numnodes.h for
each arch.  Its definition is sometimes configurable.  Indeed, ia64 defines 5
NODES_SHIFT values in the current git tree.  But it looks a bit messy.

SGI-SN2(ia64) system requires 1024 nodes, and the number of nodes already has
been changeable by config.  Suitable node's number may be changed in the
future even if it is other architecture.  So, I wrote configurable node's
number.

This patch set defines just default value for each arch which needs multi
nodes except ia64.  But, it is easy to change to configurable if necessary.

On ia64 the number of nodes can be already configured in generic ia64 and SN2
config.  But, NODES_SHIFT is defined for DIG64 and HP'S machine too.  So, I
changed it so that all platforms can be configured via CONFIG_NODES_SHIFT.  It
would be simpler.

See also: http://marc.theaimsgroup.com/?l=linux-kernel&m=114358010523896&w=2

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
23 files changed:
arch/alpha/Kconfig
arch/arm/Kconfig
arch/i386/Kconfig
arch/ia64/Kconfig
arch/m32r/Kconfig
arch/mips/Kconfig
arch/parisc/Kconfig
arch/powerpc/Kconfig
arch/sh/Kconfig
arch/x86_64/Kconfig
include/asm-alpha/numnodes.h [deleted file]
include/asm-arm/arch-lh7a40x/memory.h
include/asm-arm/numnodes.h [deleted file]
include/asm-i386/numnodes.h [deleted file]
include/asm-ia64/numnodes.h [deleted file]
include/asm-m32r/numnodes.h [deleted file]
include/asm-mips/numnodes.h [deleted file]
include/asm-parisc/numnodes.h [deleted file]
include/asm-powerpc/numnodes.h [deleted file]
include/asm-sh/numnodes.h [deleted file]
include/asm-x86_64/numa.h
include/asm-x86_64/numnodes.h [deleted file]
include/linux/numa.h