Re: 2.4.19, don't "hdparm -I /dev/hde" if hde is on a Asus A7V133 Promise ctrlr, or...

From: Andre Hedrick (andre@linux-ide.org)
Date: Thu Dec 19 2002 - 05:19:47 EST


On Thu, 19 Dec 2002, Denis Vlasenko wrote:

> On 18 December 2002 20:38, Alan Cox wrote:
> > On Wed, 2002-12-18 at 21:35, D.A.M. Revok wrote:
> > > So. I /think/ that somehow the Promise controller isn't being
> > > initialized properly by the Linux kernel, UNLESS the mobo's BIOS
> > > inits it first?
> >
> > In some situations yes. The BIOS does stuff including fixups we mere
> > mortals arent permitted to know about.
>
> OTOH mere mortals are allowed to make full dump of PCI config ;)
>
> "D.A.M. Revok" <marvin@synapse.net>, can you send lspci -vvvxxx
> outputs when you boot with BIOS enabled and BIOS disabled?

Promise knows this point.
Thus they moved the setting to a push/pull in the vendor space in the
dma_base+1 and dma_base+3 respectively.

lspci -vvvxxx fails when the content is located in bar4 io space.

Andre Hedrick
LAD Storage Consulting Group

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