Messages in this thread | | | From | Nick Warne <> | Subject | Re: hda: irq timeout: status=0xd0 DMA question | Date | Sun, 26 Feb 2006 21:10:55 +0000 |
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> > I can see the reasoning where the device just doesn't function properly > > with DMA at all (like on some Compact Flash-to-IDE adapters where the > > card claims to support DMA but the DMA lines aren't wired through in the > > adapter properly). In that case not disabling DMA would render it > > useless. The IDE layer could keep track of whether DMA was previously > > working on that device however, and not disable DMA on reset if it had > > previously been working. > > Definitely. Where these things get sticky is in defining "DMA was working". > And keeping track of it separately for reads and writes.
Hey guys, keep the CC intact, I missed these.
Yes, all the above points are valid and right, I think.
As a user we know if DMA is OK on a ide device, right? Then let user have option to set it permanent, else carry on as the code does now when idex needs a reset.
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