Hi Michael!
> 2 questions:
>
> 1) theoretic: Why at all drm needs IRQ i.e. does AGP sends info back to
> the driver?
The reason why drm needs an irq is because it can do DMA transfers from
system memory to video card memory (much faster). I take it you know why DMA
transfers need an irq (;
> 2) practical: AFAIK BIOS is in charge of setting IRQs, but the only
> thing my AWARD bios enables to set for each IRQ is whether it is
> Plug-n-Play or Reserved. How do I rearrange PCI cards IRQs?
Try putting your ethernet card in a different PCI slot. On most motherboards
(except high-end server boards), the PCI slots are hardwired/routed to
certain irqs. Your motherboard manual should state which PCI slots share
irqs (that includes the AGP slot).
--
Regards
Abraham
Your supervisor is thinking about you.
__________________________________________________________
Abraham vd Merwe - 2d3D, Inc.
Device Driver Development, Outsourcing, Embedded Systems
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