• Andrew Morton's avatar
    [PATCH] move consistent_dma_mask to the generic device · a0729eb4
    Andrew Morton authored
    From: James Bottomley <James.Bottomley@SteelEye.com>
    
    pci_dev.consistent_dma_mask was introduced to get around problems in the
    IA64 Altix machine.
    
    Now, we have a use for it in x86: the aacraid needs coherent memory in a
    31 bit address range (2GB).  Unfortunately, x86 is converted to the dma
    model, so it can't see the pci_dev by the time coherent memory is
    allocated.
    
    The solution to all of this is to move pci_dev.consistent_dma_mask to
    dev.coherent_dma_mask and make x86 use it in the dma_alloc_coherent()
    calls.
    
    This should allow me to make the aacraid set the coherent mask instead
    of using it's current dma_mask juggling.
    a0729eb4
drivers.c 16.5 KB