Messages in this thread |  | | | Subject | Re: With Daniel Phillips Patch (was: aic7xxx with 2.4.9 on 7899P) | | Date | Wed, 22 Aug 2001 07:24:29 -0600 | | From | "Justin T. Gibbs" <> |
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>On Tue, Aug 21 2001, Justin T. Gibbs wrote: >> [...] Unfortunately the x86 port >> doesn't support passing large dma addresses to drivers so bouncing is requir >ed >> in order to do PAE. > >With the PCI64 + highmem no-bounce patches it does, so feel free to >convert aic7xxx to the newpci64 API :-)
Is this somehow different than how large DMA is done on the ia64 port? All I do is look at the size of dma_addr_t to decide whether to enable high address support in my driver. If dma_addr_t's size changes, then 64bit addressing will work the same as on every other Linux port.
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