Messages in this thread | | | Date | Fri, 25 Nov 2005 16:36:01 +0100 | From | Marc Koschewski <> | Subject | Re: Assorted bugs in the PIIX drivers |
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* Alan Cox <alan@lxorguk.ukuu.org.uk> [2005-11-25 14:43:28 +0000]:
> I finally got all the documents rounded up to try and redo Jgarzik's > PIIX driver a bit more completely (I'm short MPIIX if anyone has it ?) > > I then started reading the docs and the code and noticing a couple of > problems > > 1. We set IE1 on PIO0-2 which the docs say is for PIO3+ > > 2. The ata_piix one (but not the ide/pci one) have shifts wrong so that > the secondary slave timings are half loaded into the primary slave > > > I'm also not clear if the "no MWDMA0" list has been updated correctly > for the newer chipsets. > > I've yet to review the DMA programming, just the PIO so far.
Alan,
could it be possible to again drop the ide=nodma kernel parameter in my configs that use reiserfs? reiserfs just bails out when I mount devices on ide busses that miss that parameter. I somtimes had to --rebuild-tree after a boot with DMA enabled.
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