Re: [PATCH 2/2] drm/ttm: Use pr_debug for all output from ttm_bo_evict

From: Koenig, Christian
Date: Thu Dec 06 2018 - 04:33:47 EST


Am 06.12.18 um 10:09 schrieb Michel DÃnzer:
> On 2018-12-06 3:43 a.m., Zhang, Jerry(Junwei) wrote:
>> On 12/6/18 12:56 AM, Michel DÃnzer wrote:
>>> From: Michel DÃnzer <michel.daenzer@xxxxxxx>
>>>
>>> All the output is related, so it should all be printed the same way.
>>> Some of it was using pr_debug, but some of it appeared in dmesg by
>>> default. The caller should handle failure, so there's no need to spam
>>> dmesg with potentially quite a lot of output by default.
>>>
>>> Signed-off-by: Michel DÃnzer <michel.daenzer@xxxxxxx>
>> Sounds reasonable, but personally prefer to show error when some
>> vital incident happens, e.g. no memory on eviction.
> The amdgpu driver still prints these in that case:
>
> [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* amdgpu_cs_list_validate(validated) failed.
> [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Not enough memory for command submission!
>
> That's plenty as far as I'm concerned. :)

Yeah, but in this case I would rather make the amdgpu messages debug
level and leave the TTM meassages on error level.

Christian.