[Nouveau] [PATCH 3/3] drm/nv50: wait for pgraph to idle before unloading the context

[Maarten Maathuis]

This patch *is* alone, sorry for the typo.

On Mon, Jan 11, 2010 at 9:20 PM, Maarten Maathuis <madman2003 at gmail.com> wrote:
> This patch alone, so ignore the 3/3. I think this fixes the channel
> unload hang issues in a less obscure way. Feedback appreciated as
> usual.
>
> On Mon, Jan 11, 2010 at 9:18 PM, Maarten Maathuis <madman2003 at gmail.com> wrote:
>> - This should fix the problem with gpu hangs people have had when closing
>> channels.
>>
>> Signed-off-by: Maarten Maathuis <madman2003 at gmail.com>
>> ---
>>  drivers/gpu/drm/nouveau/nv50_graph.c |    1 +
>>  1 files changed, 1 insertions(+), 0 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/nouveau/nv50_graph.c b/drivers/gpu/drm/nouveau/nv50_graph.c
>> index 444a46b..d6897cf 100644
>> --- a/drivers/gpu/drm/nouveau/nv50_graph.c
>> +++ b/drivers/gpu/drm/nouveau/nv50_graph.c
>> @@ -282,6 +282,7 @@ nv50_graph_unload_context(struct drm_device *dev)
>>                return 0;
>>        inst &= NV50_PGRAPH_CTXCTL_CUR_INSTANCE;
>>
>> +       nouveau_wait_for_idle(dev);
>>        nv_wr32(dev, 0x400500, fifo & ~1);
>>        nv_wr32(dev, 0x400784, inst);
>>        nv_wr32(dev, 0x400824, nv_rd32(dev, 0x400824) | 0x20);
>> --
>> 1.6.6
>>
>>
>