RE: Re.: Generic DMA

Christian Brunner (chb@muc.de)
Mon, 22 Sep 1997 11:35:20 +0200 (MET DST)


Hi Ronald,

you seem to be another one that has a rather strange BIOS. (Did you
have a look for a DMA option in your BISO-Settings?).

I wonder how the other OSes deal with this problem? Any hints?

Please be patient, I will try to find a solution (right after my exams)...

Christian

On Mon, 22 Sep 1997, Vogelaar, Ronald wrote:

> On Monday, September 22, 1997 10:25 AM, Christian Brunner
> [SMTP:chb@muc.de] wrote:
> > Hi,
> >
> > could you please send me the output of `dmesg` (right after booting your
> > Linux system) and the output of `cat /proc/pci`.
> >
> > Bye, Christian
> >
> >
> > On Mon, 22 Sep 1997, Vogelaar, Ronald wrote:
> >
> > > Hi,
> > >
> > > The DMA-thingy still doesn't work for me. I'm afraid Linux is the only
> > > os I work with ('95,NT,OS/2,Linux) left where this doesn't work.
> > > My hardware:
> > > Dell Optiplex PPro 200 ->PIIX3-> i82371SB & 82441FX Natoma (rev.2)
> > >
> > > Any suggestions?
> > >
> > > rgds, ronald vogelaar
> > >
> >
> Hi Christian,
> Thanx for your quick response!
>
> Here's the info:
>
> Bus 0, device 13, function 1:
> IDE interface: Intel 82371SB Natoma/Triton II PIIX3 (rev 0).
> Medium devsel. Fast back-to-back capable. Master Capable.
> Latency=32.
> I/O at 0xffa0 [0xffa1].
>
[...]
>
> PIIX3: bus-master IDE device on PCI bus 0 function 105
> PIIX3: bus-master DMA feature is not enabled (BIOS)
> ide0 master: sample_CLKs=3, recovery_CLKs=1
> master: fastDMA=yes PreFetch=on IORDY=on fastPIO=on
> slave : sample_CLKs=3, recovery_CLKs=1
> slave : fastDMA=yes PreFetch=on IORDY=on fastPIO=on
> ide1 master/slave: sample_CLKs=3, recovery_CLKs=3
> master: fastDMA=yes PreFetch=off IORDY=on fastPIO=on
> slave : fastDMA=no PreFetch=off IORDY=off fastPIO=off
> hda: WDC AC33100H, ATA DISK drive
> hdb: IBM-DCAA-34330, ATA DISK drive
> hdc: NEC CD-ROM DRIVE:282, ATAPI CDROM drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> ide1 at 0x170-0x177,0x376 on irq 15
> hda: WDC AC33100H, 3020MB w/128kB Cache, LBA, CHS=767/128/63
> hdb: IBM-DCAA-34330, 4134MB w/96kB Cache, LBA, CHS=527/255/63
> hdc: media changed