[Bug 19002] Radeon rv730 AGP/KMS/DRM kernel lockup

[<bug...@bu...>]

https://bugzilla.kernel.org/show_bug.cgi?id=19002





--- Comment #7 from Alex Deucher <ale...@gm...>  2010-10-13 15:12:16 ---
(In reply to comment #6)
> 
> Meanwhile, is the radeon.agpmode=-1 boot parameter like the xorg.conf device
> section Option "AGPMode" "int" or Option "BusType" "string" that I used to use
> and that's still documented in the radeon manpage?  Do those do any good now
> with KMS or are they ignored in that case, with only the boot parameters having
> any effect?

Correct.  the agpmode module parameter is a combination of those two xorg
driver options. -1 uses the on board GART mechanism rather than the northbridge
provided AGP one. 1,2,4,8 specify the AGP mode when using the northbridge
provided AGP GART.  When KMS is active, the AGPMode and BusType xorg.conf
options are not used as KMS configures the hw independent of X.

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