[PATCH] drm/amdgpu: Reserve fence slots for command submission

[Zhang, Jerry (Junwei)]

On 07/04/2018 03:21 PM, Michel Dänzer wrote:
> On 2018-07-04 08:55 AM, Zhang, Jerry (Junwei) wrote:
>> On 07/04/2018 02:34 PM, Christian König wrote:
>>> Am 04.07.2018 um 05:02 schrieb Junwei Zhang:
>>>> From: Michel Dänzer <michel.daenzer at amd.com>
>>>>
>>>> Without this, there could not be enough slots, which could trigger the
>>>> BUG_ON in reservation_object_add_shared_fence.
>>>>
>>>> v2:
>>>> * Jump to the error label instead of returning directly (Jerry Zhang)
>>>> v3:
>>>> * Reserve slots for command submission after VM updates (Christian
>>>> König)
>>>>
>>>> Cc: stable at vger.kernel.org
>>>> Bugzilla: https://bugs.freedesktop.org/106418
>>>> Reported-by: mikhail.v.gavrilov at gmail.com
>>>> Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
>>>> Signed-off-by: Junwei Zhang <Jerry.Zhang at amd.com>
>>>
>>> I would put that at the end of amdgpu_bo_vm_update_pte(), but that is
>>> only a minor nit pick.
>>
>> At first, I really put it at the end of amdgpu_bo_vm_update_pte().
>> On the 2nd thought, that func may be called by others(although it's not
>> for now), so I move it out of there to the caller.
>
> Makes sense to me, FWIW. Thanks Junwei and Christian!

Please confirm if that works in your side.
If yes, I would push that to drm-next then.

Thanks.

Jerry

>
>
> P.S. Christian, any feedback on
> https://patchwork.freedesktop.org/patch/232204/ ?
>