Christoph Lameter 66701b1499 [PATCH] optional ZONE_DMA: introduce CONFIG_ZONE_DMA ... This patch simply defines CONFIG_ZONE_DMA for all arches. We later do special things with CONFIG_ZONE_DMA after the VM and an arch are prepared to work without ZONE_DMA. CONFIG_ZONE_DMA can be defined in two ways depending on how an architecture handles ISA DMA. First if CONFIG_GENERIC_ISA_DMA is set by the arch then we know that the arch needs ZONE_DMA because ISA DMA devices are supported. We can catch this in mm/Kconfig and do not need to modify arch code. Second, arches may use ZONE_DMA in an unknown way. We set CONFIG_ZONE_DMA for all arches that do not set CONFIG_GENERIC_ISA_DMA in order to insure backwards compatibility. The arches may later undefine ZONE_DMA if their arch code has been verified to not depend on ZONE_DMA. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Wilcox <willy@debian.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-02-11 10:51:18 -08:00
..
arch-v10	[PATCH] getting rid of all casts of k[cmz]alloc() calls	2006-12-13 09:05:58 -08:00
arch-v32	[PATCH] Change cpu_up and co from __devinit to __cpuinit	2007-01-11 18:18:20 -08:00
kernel	[PATCH] getting rid of all casts of k[cmz]alloc() calls	2006-12-13 09:05:58 -08:00
mm	[PATCH] mm: arch do_page_fault() vs in_atomic()	2006-12-07 08:39:21 -08:00
defconfig	[PATCH] CRIS update: configuration and build	2005-07-27 16:25:59 -07:00
Kconfig	[PATCH] optional ZONE_DMA: introduce CONFIG_ZONE_DMA	2007-02-11 10:51:18 -08:00
Kconfig.debug	[PATCH] arch/cris/Kconfig.debug: use lib/Kconfig.debug	2005-09-05 00:06:19 -07:00
Makefile	cris: asm-offsets related build failure	2006-01-21 12:04:14 +01:00