From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Chris Wilson <chris@chris-wilson.co.uk>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915: Check that the plane points to the pipe's framebuffer before enabling
Date: Mon, 18 Apr 2011 08:54:44 -0700 [thread overview]
Message-ID: <20110418085444.2d020b6c@jbarnes-desktop> (raw)
In-Reply-To: <1303032761-2991-1-git-send-email-chris@chris-wilson.co.uk>
On Sun, 17 Apr 2011 10:32:41 +0100
Chris Wilson <chris@chris-wilson.co.uk> wrote:
> Knut Petersen reported a GPU hang when he left x11perf running
> overnight. The error state quite clearly indicates that plane A was
> enabled without being fully setup:
>
> PGTBL_ER: 0x00000010
> Display A: Invalid GTT PTE
> Plane [0]:
> CNTR: c1000000
> STRIDE: 00000c80
> SIZE: 03ff04ff
> POS: 00000000
> ADDR: 00000000
>
> [That GTT offset on his system being pinned for the ringbuffer.]
>
> This is a simple debugging patch to assert that this cannot be so!
>
I like it (though now the comment talks about DSPADDR and leaves
DSPSURF out in the cold).
Sounds like our dpms code may be causing trouble for this x11perf run
perhaps? What else would cause us to change base addrs during a bench
run like that?
--
Jesse Barnes, Intel Open Source Technology Center
next prev parent reply other threads:[~2011-04-18 15:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-16 18:20 [PATCH] drm/i915: Check that the plane points to the pipe's framebuffer before enabling Chris Wilson
2011-04-17 9:32 ` Chris Wilson
2011-04-18 15:54 ` Jesse Barnes [this message]
2011-04-19 5:55 ` [PATCH] drm/i915: Check that the plane points to the pipes " Chris Wilson
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