Re: [PATCH] use mmiowb in tg3.c

From: akepner
Date: Thu Oct 21 2004 - 21:01:53 EST


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?

--
Arthur



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