Re: failure on linux-3.2 and radeon kms with a FireGL V5600 on PPC64

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2012/1/30 acrux <acrux_it@xxxxxxxxx>:
> On Mon, 30 Jan 2012 10:34:03 +0100
> Michel Dänzer <michel@xxxxxxxxxxx> wrote:
>
>> On Son, 2012-01-29 at 23:27 +0100, acrux wrote:
>> > hi all,
>> > i'm unable to have a working Radeon KMS framebuffer with an ATI FireGL
>> > V5600 on my YDL Powerstation and i'm obliged to use the old
>> > OpenFirmware fb.
>> >
>> > That's from my dmesg [1]:
>> >
>> > [...]
>> > vgaarb: device added: PCI:0000:f1:00.0,decodes=io+mem,owns=none,locks=none
>> > vgaarb: loaded
>> > vgaarb: bridge control possible 0000:f1:00.0
>> > [...]
>> > [drm] Initialized drm 1.1.0 20060810
>> > [drm] radeon defaulting to kernel modesetting.
>> > [drm] radeon kernel modesetting enabled.
>> > [drm] initializing kernel modesetting (RV630 0x1002:0x958C 0x1002:0x0B02).
>> > radeon 0000:f1:00.0: Using 32-bit DMA via iommu
>> > [drm] register mmio base: 0xE8000000
>> > [drm] register mmio size: 65536
>> > radeon 0000:f1:00.0: Invalid ROM contents
>> > radeon 0000:f1:00.0: Expecting atombios for R600 GPU
>> > radeon 0000:f1:00.0: Fatal error during GPU init
>>
>> Looks like there's a problem retrieving the card's ROM contents. Does
>> rebuilding the kernel with CONFIG_VGA_ARB disabled make a difference?
>>
>>
>
> hi Michel,
> thanks for your help but i'm unable to disable VGA_ARB 'cause it's automatically enabled.
> Can you suggest me a way to disable it?
> Here my kernel config: http://cruxppc.org/~acrux/config-kms
>

Also make sure you enable PCI quirks.

Alex

> best,
> --nico
> --
> acrux <acrux_it@xxxxxxxxx>
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