Messages in this thread | | | Date | Mon, 27 Jan 2003 12:30:57 +0300 | From | Ivan Kokshaysky <> | Subject | Re: [PATCH] isa_virt_to_bus and co on Alpha |
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On Sun, Jan 26, 2003 at 08:33:27PM +0100, Marc Zyngier wrote: > The following trivial patchlet (against 2.5.59) adds the missing > isa_virt_to_bus/isa_bus_to_virt API to the Alpha architecture.
Please don't do that. virt_to_bus/bus_to_virt are deprecated since 2.2, drivers are supposed to use DMA mapping API instead.
> This is at least needed by the aha1740 driver. With this patch, the > ol' good Jensen is back running 2.5 ;-).
And it won't work on anything but Jensen. All other alphas have direct map window at 1 or 2 Gb, which cannot be reached by ISA busmaster because of 24 address wires limitation.
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