First off, I haven't checked this in yet, because I need to do some cleanup, but I've got synchronous DMA working for vertex buffers on both AGP and PCI (PCI for me meaning with agpgart unloaded). Unfortunately, at the moment it's actually slower than MMIO, since it's synchronous (wait for idle at the end of every pass) and there's the overhead of the descriptor table setup. So I guess the next thing to do will be to figure out the buffer aging.
I set up the descriptor table in PCI space using the pci_pool interface that the bus master test used, and I keep the handles in dev_priv. It took me awhile to figure out how to properly pass the physical address of the buffers to the card. What I'm doing for pci is using: address = (u32) virt_to_phys((void *)buf->address) and for AGP: address = (u32) buf->bus_address and to get a valid pointer for reading/writing the buffer with PCI I use: u32 *p = (u32 *) buf->address Jose, you almost had it before, it's just a matter of using the right types and cast. I'll try and send you a patch soon when I get things cleaned up a bit. -- Leif Delgass http://www.retinalburn.net _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
