Re: IDE/DMA madness

Andre M. Hedrick (hedrick@Astro.Dyer.Vanderbilt.Edu)
Sun, 25 Jul 1999 19:55:49 -0500 (CDT)


That is because it is turned OFF...........

Enjoy the crashing and destruction of your FS for wreckless behavior.
That is there for a reason. You have to clear a few registers in the
ISA-BRIDGE to remove the simplex PnP stuff.

You have been warned about this FOOLISH action!!!!!!

NOW, the nicer reply.
Get a patch from one of the mirror sites for "LinuxIDE".
The old home was at ::

http://www.dyer.vanderbilt.edu/server/udma/

This URL will report an error 401 but also present links to the mirrors.

Should you blow of this help, do not ask/bitch/complain to the list or me.

On Sun, 25 Jul 1999 est@hyperreal.org wrote:

> Greetings,
>
> My 2.2.7 kernel claims the BIOS has turned IDE/DMA off unless I rip
> out the following lines:
>
> --- linux-2.2.7/drivers/block/ide-dma.c~ Mon Jan 18 02:23:01 1999
> +++ linux-2.2.7/drivers/block/ide-dma.c Sun Jul 25 16:06:54 1999
> @@ -434,10 +434,6 @@
> request_region(dma_base+16, extra, name);
> dma_base += hwif->channel ? 8 : 0;
> hwif->dma_extra = extra;
> - if (inb(dma_base+2) & 0x80) {
> - printk("%s: simplex device: DMA disabled\n", name);
> - dma_base = 0;
> - }
> }
> return dma_base;
> }
>
> The exact same lines appear in 2.2.10 as well. Obviously this isn't
> the right way to fix my problem..does anyone know what is? I've got
> an Asus P5A-B motherboard.

Recant of the bitch/complain........the alim15x3.c code was written on the
exact mainboard.

> Thanks, :)
>
> Eric
>
> -
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>

Andre Hedrick
The Linux IDE guy

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