On Tue, 14 Aug 2007, Andi Kleen wrote: > On Mon, Aug 13, 2007 at 03:00:14PM -0700, Christoph Lameter wrote: > > You said that ZONE_DMA will still be there right? So the zone will be > > There will be a (variable sized) dma zone, but not a ZONE_DMA entry in pgdat > or in the the fallback lists.
Ahh.. Okay. > > > There are still other architectures that use it. Biggest offender > > > is s390. I'll leave them to their respective maintainers. > > > > IA64 also uses ZONE_DMA to support 32bit controllers. > > ZONE_DMA32 I thought? That one is not changed. x86_64 is the only platforms that uses ZONE_DMA32. Ia64 and other 64 bit platforms use ZONE_DMA for <4GB allocs. > > If so then it may be better to drop ZONE_DMA32 and make ZONE_DMA be below > > 4GB like other 64bit arches. > > That might be possible as a followup, but would change the driver > API. Is it worth it? It would leave the driver API as is for many arches. I think s/ZONE_DMA32/ZONE_DMA would restore the one DMA zone thing which is good. We could drop all ZONE_DMA32 stuff that is only needed by a single arch. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
