Messages in this thread | | | Subject | Re: 2.6.10-rc2-mm4 | From | Jes Sorensen <> | Date | 02 Dec 2004 03:01:02 -0500 |
| |
>>>>> "Andrew" == Andrew Morton <akpm@osdl.org> writes:
Andrew> Arjan van de Ven <arjan@infradead.org> wrote: >> >> On Tue, 2004-11-30 at 09:50 -0800, Andrew Morton wrote: >> > >> http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10-rc2/2.6.10-rc2-mm4/ >> > >> > - Various fixes and cleanups >> > >> > - A decent-sized x86_64 update. >> > >> > - x86_64 supports a fourth VM zone: ZONE_DMA32. This may affect >> memory > reclaim, but shouldn't. >> >> >> what is the purpose of such a zone ??
Andrew> For pages which have a physical address <4G. I assume this Andrew> was motivated by the lack of an IOMMU on ia32e?
If we really need such a special case, wouldn't it be about time we introduced a mask based allocation API instead? There's hardware out there with 31 bit and 40 bit restrictions.
Doing this solely for the sake of nvidia is certainly questionable.
Regards, Jes - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |