Messages in this thread | | | Date | Sun, 20 Jun 2004 13:18:12 -0700 | From | David Brownell <> | Subject | Re: DMA API issues |
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James Bottomley wrote:
> The iseries can't because the PCI bus sits behind the hypervisor and has > to use accessors to get at the on chip memory, it can't simply be mapped > into the address space like it can on ARM.
So you're saying that the iSeries can't implement dma_alloc_coherent() for such hardware, yes? In that case, it should return a polite failure status. Meanwhile, hardware that _can_ implement it should do so.
- Dave
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