Re: Can we kill f inb_p, outb_p and other random I/O on port 0x80, in 2.6?

From: Jamie Lokier
Date: Mon Sep 22 2003 - 13:28:58 EST


Arjan van de Ven wrote:
> The first person to complain about the extra branch miss in udelay for
> this will get laughed at by me ;)

udelay(1) is too slow on a 386 even without the branch miss.

If you think I/O operations are infinitely slower than other
instructions, please explain why there is asm-optimised I/O code in
asm-i386/floppy.h.

:)

-- Jamie



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