Re: ATI Radeon 9600SE and intel-agp, again

[Jacob Gorm Hansen <jacobg@diku.dk>]

Jacob Gorm Hansen wrote:
>     printk("trying to remap addr %p phys %p size %d to DOM_IO\n",addr, 
> phys_addr, size);
> 
>     if (direct_remap_area_pages(&init_mm, (unsigned long) addr, phys_addr,
>                     size, __pgprot(_PAGE_PRESENT | _PAGE_RW |
>                            _PAGE_DIRTY | _PAGE_ACCESSED
>                            | flags), DOMID_IO)) {
> 
> the printk says:
> "trying to remap addr d0900000 phys 3ff00000 size 262144 to DOM_IO"
> 
> And the call fails in Xen who claims that dom0 and not dom_io owns these 
> pages.

I have tried replacing DOMID_IO with DOMID_LOCAL, and then the call goes 
through, but I have no idea if it makes any sense doing that.

By the way, I just tried with an Nvidia graphics card in the machine, 
and the problem is the same, so it must be a problem with the chipset 
which is an Intel i875. The machine is a Dell Precision 380 
workstation-class machine with a P4 3.2GHz and 1GB mem.

Jacob


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