Re: Opinion on ordering of writel vs. stores to RAM

[Alan Cox]

Ar Sad, 2006-09-09 am 17:23 +1000, ysgrifennodd Benjamin Herrenschmidt:
> The problem is that very few people have any clear idea of what mmiowb
> is :) In fact, what you described is not the definition of mmiowb
> according to Jesse 

Some of us talked a little about this at Linux Kongress and one
suggestion so people did understand it was

	spin_lock_io();
	spin_unlock_io();

so that it can be expressed not as a weird barrier op but as part of the
locking.

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