Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [RFC] Initial alpha-0 for new page allocator API | Date | Fri, 22 Sep 2006 08:17:59 +0200 |
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On Friday 22 September 2006 06:02, Christoph Lameter wrote: > We have repeatedly discussed the problems of devices having varying > address range requirements for doing DMA.
We already have such an API. dma_alloc_coherent(). Device drivers are not supposed to mess with GFP_DMA* directly anymore for quite some time.
> We would like for the device > drivers to have the ability to specify exactly which address range is > allowed.
I actually have my doubts it is a good idea to add that now. The devices with weird requirements are steadily going away.
-Andi
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