From: Zhenyu Wang <zhenyuw@linux.intel.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: Eric Anholt <eric@anholt.net>, David Airlie <airlied@linux.ie>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] agp/intel: Fix dma mask for Sandybridge
Date: Mon, 23 Aug 2010 09:35:07 +0800 [thread overview]
Message-ID: <20100823013507.GA29442@zhen-devel.sh.intel.com> (raw)
In-Reply-To: <s5hlj81cn4n.wl%tiwai@suse.de>
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On 2010.08.20 17:36:08 +0200, Takashi Iwai wrote:
> Sandybridge requires 36bit dma mask, but the current code checks only
> against i965, thus it gives Oops with i915 probing on 32bit machine:
>
> nommu_map_sg: overflow 14a000000+4096 of device mask ffffffff
> [drm:drm_agp_bind_pages] *ERROR* Failed to bind AGP memory: -12
> BUG: unable to handle kernel paging request at fffffff8
> IP: [<f7fac57f>] i915_gem_evict_something+0xef/0x230 [i915]
> ...
Sandybridge can do 40-bit dma mask. This has been fixed upstream now.
--
Open Source Technology Center, Intel ltd.
$gpg --keyserver wwwkeys.pgp.net --recv-keys 4D781827
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next prev parent reply other threads:[~2010-08-23 1:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-20 15:36 [PATCH] agp/intel: Fix dma mask for Sandybridge Takashi Iwai
2010-08-23 1:35 ` Zhenyu Wang [this message]
2010-08-23 5:29 ` Takashi Iwai
2010-08-23 5:43 ` Zhenyu Wang
2010-08-23 6:02 ` Takashi Iwai
2010-08-23 6:13 ` Takashi Iwai
2010-08-23 6:19 ` Zhenyu Wang
2010-08-23 6:31 ` Takashi Iwai
2010-08-23 6:48 ` Zhenyu Wang
2010-08-23 14:02 ` Eric Anholt
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