Re: [Linux-fbdev-devel] Re: [PATCH] fbdev: Fix IO access in rivafb

From: Benjamin Herrenschmidt
Date: Mon Nov 08 2004 - 16:58:56 EST

On Mon, 2004-11-08 at 17:06 +0800, Antonino A. Daplas wrote:

> How about this patch? This is almost the original macro in riva_hw.h,
> with the __force annotation.

I don't like it neither. It lacks barriers. the rivafb driver
notoriously lacks barriers, except in a few places where it was so bad
that it actually broke all the time, where we added some. This
originates from the X "nv" driver written by Mark Vojkovich who didn't
want to hear about barriers for perfs reasons I think.


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