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Date:	Thu, 03 Jan 2013 03:03:30 +0200
From:	Antti Palosaari <crope@....fi>
To:	Alex Deucher <alexdeucher@...il.com>
CC:	Shuah Khan <shuahkhan@...il.com>,
	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	Jerome Glisse <j.glisse@...il.com>,
	Borislav Petkov <bp@...en8.de>,
	Andy Furniss <andyqos@...sn.org>,
	Alex Deucher <alexander.deucher@....com>,
	dri-devel@...ts.freedesktop.org,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: radeon 0000:02:00.0: GPU lockup CP stall for more than 10000msec

On 01/03/2013 01:59 AM, Alex Deucher wrote:
> On Wed, Jan 2, 2013 at 6:58 PM, Shuah Khan <shuahkhan@...il.com> wrote:
>> On Wed, Jan 2, 2013 at 4:37 PM, Alex Deucher <alexdeucher@...il.com> wrote:
>>> On Wed, Jan 2, 2013 at 5:38 PM, Markus Trippelsdorf
>>> <markus@...ppelsdorf.de> wrote:
>>>> On 2013.01.02 at 17:31 -0500, Jerome Glisse wrote:
>>>>> Please affected people can you test if patch :
>>>>> http://people.freedesktop.org/~glisse/0003-drm-radeon-fix-dma-copy-on-r6xx-r7xx-evergen-ni-si-g.patch
>>>>>
>>>>> Fix the issue, you need to make sure you don't have the patch that
>>>>> disable dma on r6xx ie that line 977-978 & 1061-1062  in radeon_asic.c
>>>>> is :
>>>>>   .copy = &r600_copy_dma,
>>>>>   .copy_ring_index = R600_RING_TYPE_DMA_INDEX,
>>>>
>>>> It fixes the issue for me. Thanks.
>>>
>>> The count is actually the count, not count - 1.  The real fix seems to
>>> be that r6xx requires 2 dw aligned transfers.  The attached patch
>>> fixes the issue for me.
>>>
>>
>> Catching up with this thread. I reverted the
>>
>> drm/radeon: use async dma for ttm buffer moves on 6xx-SI
>> commit id: 2d6cc7296d4ee128ab0fa3b715f0afde511f49c2
>>
>> Do I need to apply this patch without reverting
>> 2d6cc7296d4ee128ab0fa3b715f0afde511f49c2?
>
> Correct.  Don't revert anything.  Just apply this patch.

Tested, it is working.

I didn't revert anything, just added that latest patch.

regards
Antti

-- 
http://palosaari.fi/
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