[linux-fbdev] Re: readl() and friends and eieio on PPC

Richard Henderson rth at cygnus.com
Thu Aug 12 15:52:31 EST 1999

On Thu, Aug 12, 1999 at 01:16:14AM -0400, David Edelsohn wrote:
> 	Is your assumption that you want to provide the infrastructure to
> write high-performance device drivers or to write device drivers that
> don't require as much expertise and knowledge to produce correct results?

I prefer high-performance drivers. 

There are enough other things (virt_to_bus, ioremap, et al) that are
non-optional that driver writers must learn about for non-peecee
driver programming that proper use of mb/wmb doesn't seem that big a
deal to me.

I guess I personally can afford to be somewhat idealistic in this,
because I only use about 4 drivers -- ncr, aic7xxx, tulip, epic100 --
and the authors of all these drivers have clue.  But the thought of
coddling to folks that can't be bothered to do things Right gives
me hives.


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