Messages in this thread | | | Date | Tue, 1 Jun 1999 17:53:13 +0200 | From | Jamie Lokier <> | Subject | Re: ptrace question ... |
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Ralf Baechle wrote: > > Yes: if you remove the test, accessing the hardware still doesn't work! > > Obviously. However that code was written even before Linux 1.0 and > at that time there was no ioremap that is all memory mappaple devices > were permanently accessible.
At the time, there were no PCI devices with high physical addresses. Hardware has moved on -- Linux 1.0 can't access those devices directly.
-- Jamie
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