Re: New topic (PowerPC Linux PCI HELL)

[Jeff Garzik]

Gérard Roudier wrote:
> This function delegates too much as a whole to the PCI generic layer, IMO.
> Imagine that for sanity I want to allocate all the device resources, but
> only _enable_ part of device features (for example only memory
> transactions). Imagine some special handling to be necessary due to some
> chip bug.

Blindly enabling PIO on VGA devices is bad news, cuz they all want to
grab 0x3?0 ports.  I always imagined it as something of a special case
though.

So for VGA devices I agree with you -- I don't care how a device is
"enabled", but it would be nice tell the PCI layer that PIO or MMIO bits
in PCI_COMMAND need special handling.  PCI_DONT_TOUCH_PIO and
PCI_DONT_TOUCH_MMIO maybe :)

        Jeff




-- 
Jeff Garzik              | Would you *really* want to
Building 1024            | get on a non-stop flight?
MandrakeSoft, Inc.       |       -- George Carlin
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