Re: radeon 0000:02:00.0: GPU lockup CP stall for more than 10000msec

From: Antti Palosaari
Date: Wed Jan 02 2013 - 20:04:11 EST

On 01/03/2013 01:59 AM, Alex Deucher wrote:
On Wed, Jan 2, 2013 at 6:58 PM, Shuah Khan <shuahkhan@xxxxxxxxx> wrote:
On Wed, Jan 2, 2013 at 4:37 PM, Alex Deucher <alexdeucher@xxxxxxxxx> wrote:
On Wed, Jan 2, 2013 at 5:38 PM, Markus Trippelsdorf
<markus@xxxxxxxxxxxxxxx> wrote:
On 2013.01.02 at 17:31 -0500, Jerome Glisse wrote:
Please affected people can you test if 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

Correct. Don't revert anything. Just apply this patch.

Tested, it is working.

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


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