Hello.
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
Similar to the chips driven by sata_sil you mean?
Both 680 and 3112 certainly have the INTRQ status in the MMIO
register (yes, alternatively seen thru the PCI config space). IIRC it's
not a latched status, so doesn't require clearing...
Promise uses a magic register at dmabase + 0x1D which holds irq bits
Yes, if you mean the chips driven by [pata_]pdc202xx_old -- don't
know about SATA.
MBR, Sergei
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
