Re: [PATCH] use mmiowb in tg3.c

From: Benjamin Herrenschmidt
Date: Thu Oct 21 2004 - 21:32:56 EST


On Fri, 2004-10-22 at 11:33, akepner@xxxxxxx wrote:
> On Fri, 22 Oct 2004, Benjamin Herrenschmidt wrote:
>
> > ...
> > Typically, our normal "light" write barrier doesn't reorder between cacheable
> > and non-cacheable (MMIO) stores, which is why we had to put some heavy sync
> > barrier in our MMIO writes macros.
> > ...
>
> Do you mean "impose order" rather than "reorder" here?

Right.

Ben.


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