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I was thinking of the following system: Allocate a fifo for userspace, map the fifo, map the fifo registers into userspace. These allocations are therefore pinned, so something to avoid memory fragmentation has to be done. Userspace library fills up an entire fifo, minus a few essential things i will mention later. Userspace does ioctl with all the bo's it'll need for the fifo.

This patchset applies some minor fixes to renouveau.xml and then unifies the nv30 and nv40 register definitions. nv30 and nv40 are very similar and have the same offsets for the registers they share. The major differences are: 1. Texture setup is different due to full NPOT support on nv40 2. More advanced blending/render targets on nv40 3. NV30 has fixed function registers, which NV40 lacks The