linux-kernel - Re: [PATCH 34/49] gma500: the GEM and GTT code is device independant

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Message-ID: <20110711172517.46907e62@lxorguk.ukuu.org.uk>
Date:	Mon, 11 Jul 2011 17:25:17 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Hugh Dickins <hughd@...gle.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, greg@...ah.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 34/49] gma500: the GEM and GTT code is device
 independant

> Your <4GB pages won't get swapped out while they're pinned.  But can
> it happen that they'd be unpinned, swapped out, swapped back in >4GB
> pages, then cause trouble for you when needed again?

It does look that way, in which case that will eventually need fixing. At
the moment you can't put enough memory into a device using these chips
but that won't always be true I imagine.

Alan
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