Re: EISA i/o mem & ioremap vs isa_memcpy

Linus Torvalds (
Fri, 5 Nov 1999 10:04:22 -0800 (PST)

On Thu, 4 Nov 1999, Paul Gortmaker wrote:
> My question is: Does adding the isa_ prefix to the memcpy (and readb &
> friends) make sense for these EISA cases or should I just do the ioremap()
> unconditionally and not use the isa_ prefix. I tend to prefer the latter.

Just do the ioremap() unconditionally.

Note that the isa_xxxx() functions are for old drivers that do NOT know
about ioremap(), and think that the ISA space is always mapped. Think of
it as a band-aid for stupid drivers, making it easier to bring them up to
working order. But the "ioremap()" approach is always the right one.


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