Re: memory barriers in bus_dmamap_sync() ?

From: Scott Long <scottl_at_samsco.org>
Date: Wed, 11 Jan 2012 10:04:13 -0700
On Jan 11, 2012, at 10:00 AM, Ian Lepore wrote:

> 
> I've wished (in the ARM world) for the ability to sync a portion of a
> map.  I've even kicked around the idea of proposing an API extension to
> do so, but I guess if FreeBSD went out of its way to remove that
> functionality that idea probably won't fly. :)

It's been discussed numerous times since mips and arm became relevant in FreeBSD, and I'm frankly surprised that it hasn't happened yet.  Go forth and code, it won't be opposed.

Scott
Received on Wed Jan 11 2012 - 16:04:21 UTC

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