Alan Cox wrote:
All BMDMA controllers I know about are sata_sil (already has private
irq handler) and ata_piix (this patch). Alan, how do other
controllers do it?
CMD chipsets do a register read .. from PCI config space (gak)
SIL680 is similar
SI3112 adds the fact you need to keep at the PHY as well.
Promise uses a magic register at dmabase + 0x1D which holds irq bits
What I'd like to understand better is why we need any
of these ...
Indeed!
Jeff
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