Johannes Berg wrote: > > But this isn't quite correct either is it? > > You said before that we should be fine allocating the DMA rings below > 1GB and then doing arbitrary DMA buffers. If this is the case, then imho > we should just do that, the six DMA rings or whatever we should be able > to fit into low memory.
No it isn't right. When I booted with a mem=512M option, the DMA error still occurred as long as I didn't allocate the ring buffer with the GFP_DMA flag. Allocating below the 1 GB boundary is not sufficient. John Linville wrote: > Crap...surely they have resolved this in newer hardware? It may be even worse. They seem to have made this device look like an ISA device and force the ring buffer to below the 16 MB boundary. Larry _______________________________________________ Bcm43xx-dev mailing list [email protected] https://lists.berlios.de/mailman/listinfo/bcm43xx-dev
