> > That's the problem: we don't have the datasheet for the ArticiaS. :-( > > But the driver initializes correctly with the Uninorth code now and > > with the DRI/DRM code changed. (The code in drm_vm.c checks for Apple's > > PCI vendor ID. Therefore I just added a check for MAI's PCI vendor ID.) > > But the X server freezes after the login screen is displayed (IIRC the > > mouse still works, but the keyboard is dead!?). > > That check is only necessary because Apple bridge puts the AGP aperture > at bus address 0. This is probably not the case for you. You may not > have that right. Check what you put in agp_bridge->gart_bus_addr Hmm, I'm not sure what value agp_bridge->gart_bus_addr should have. The BIOS doesn't setup it and the VIA AGPGART driver even reads it out from the northbridge's registers! Where does the value for agp_bridge->gart_bus_addr come from? For now it is set to 0x0, which would require the modification in drm_vm.c!?
> > > - The AGP aperture itself. The main issue there is wether your > > > chipset makes the AGP aperture visible to the CPU or not. The Apple > > > UniNorth one doesn't for example, it;'s only visible to the graphic > > > chip. That is why the uninorth driver sets cant_use_aperture to 1. > > > That forces the DRM to generate AGP mappings by using the real memory > > > pages and putting them together into a virtual mapping instead of > > > doing a direct mapping of the AGP aperture on the bus. Most x86 > > > chipsets however _can_, thus a simple remapping of pages is enough. > > > Good question! How would I have to modify the Uninorth driver to use a > > direct mapping of the AGP aperture on the bus? > > Don't set cant_use_aperture to 1 :) :) The driver seems to work better with cant_use_aperture set to 1, so I leave it as it is. BTW: What's the meaning of needs_scratch_page? Thanks for your support! Gerhard -- 10 GB Mailbox, 100 FreeSMS/Monat http://www.gmx.net/de/go/topmail +++ GMX - die erste Adresse für Mail, Message, More +++ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
