Messages in this thread |  | | Subject | Re: alpha iommu fixes | Date | Tue, 22 May 2001 22:10:13 +0100 (BST) | From | Alan Cox <> |
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> On Tue, May 22, 2001 at 01:48:23PM -0700, Jonathan Lundell wrote: > > 64KB for 8-bit DMA; 128KB for 16-bit DMA. [...] This doesn't > > apply to bus-master DMA, just the legacy (8237) stuff. > > Would this 8237 be something on the ISA card, or something on > the old pc mainboards? I'm wondering if we can safely ignore > this issue altogether here...
On the mainboards. Bus mastering ISA controllers have various limits of their own but I dont believe the 64/128K one is required
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