Re: EISA i/o mem & ioremap vs isa_memcpy

Linus Torvalds (torvalds@transmeta.com)
Fri, 5 Nov 1999 10:04:22 -0800 (PST)

Messages sorted by: [ date ][ thread ][ subject ][ author ]
Next message: Trond Myklebust: "Another small rpc_procinfo glitch..."
Previous message: (no name): "(no subject)"

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.

Linus

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

Next message: Trond Myklebust: "Another small rpc_procinfo glitch..."
Previous message: (no name): "(no subject)"