Messages in this thread | | | From | "Adam J. Richter" <> | Date | Tue, 5 Mar 2002 09:08:20 -0800 | Subject | Re: Does kmalloc always return address below 4GB? |
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Steffen Persvold writes: >I know pci_map_single (and _sg) will >use bounce buffers on platforms without an IOMMU [...]
For a moment I thought that must be the point that I was missing, but I don't see any such bounce buffer support in linux-2.5.6-pre2/include/asm-i386/pci.h or arch/i386/kernel/pci-dma.c. I do not see how this is currently implemented on x86 systems with >4GB of RAM.
Or, by "will use" did you mean "will implement in the future?"
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