linux-kernel - Re: [PATCH 14/15] gma500: nuke the PSB debug stuff

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Date:	Thu, 9 Jun 2011 12:55:21 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Dave Airlie <airlied@...hat.com>
Cc:	Patrik Jakobsson <patrik.r.jakobsson@...il.com>, greg@...ah.com,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 14/15] gma500: nuke the PSB debug stuff

> Though if psb wants to be different to other drm drivers it can lead the
> way, though it'll be a total nightmare for all the people who follow
> documentation on how to debug drm drivers using drm.debug=1,2,4,8. for
> various code paths.

Actually it seems to work out nicely because you can debug DRM core
goings on and driver goings on separately. Also the driver ones can be
turned on/off on their own at runtime which is a godsend.

As you can imagine I've been testing the debugging a fair bit !

Alan
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