lkml.org 
[lkml]   [2004]   [Jun]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: DMA API issues
    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


    -
    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/

    \
     
     \ /
      Last update: 2005-03-22 14:03    [from the cache]
    ©2003-2011 Jasper Spaans