Messages in this thread | | | Date | Mon, 22 Mar 2004 18:23:28 +0000 | From | Richard Curnow <> | Subject | Re: can device drivers return non-ram via vm_ops->nopage? |
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* Benjamin Herrenschmidt <benh@kernel.crashing.org> [2004-03-22]: > DRI suffers from similar issue when using PCI GART, but then, it also > doesn't use the consistent alloc routines, it gets pages with GFP, > mmap those into userland, and does pci_map_single in the kernel on > each individual page to obtain the bus addresses. This will not be > pretty on non-coherent architectures though.
... or on platforms where PCI bounce-buffers are being used.
-- Richard \\\ SH-4/SH-5 Core & Debug Architect Curnow \\\ SuperH (UK) Ltd, Bristol - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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