linux-kernel - Re: [PATCH 1/5]: drm: ati_pcigart: Do not access I/O MEM space using pointer derefs.

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Message-Id: <1234602564.26036.84.camel@pasglop>
Date:	Sat, 14 Feb 2009 20:09:24 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Dave Airlie <airlied@...il.com>
Cc:	David Miller <davem@...emloft.net>, airlied@...ux.ie,
	dri-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5]: drm: ati_pcigart: Do not access I/O MEM space
 using  pointer derefs.


> The only think I can think to do is use a surface instead of the
> aperture swappers
> and make the surface cover all the VRAM except the GART table which is
> at the end.

Why not use a surface to cover the GART ? At least this would ensure a
known swapper setting for it. 

> That's interesting, it could explain why things never work again after a reset
> or at least proceed to hang straight away.

No shit :-)

Cheers,
Ben.


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