Re: [Linaro-mm-sig] [PATCH 00/11] drm/msm: drm scheduler conversion and cleanups

["Christian König" <ckoenig.leichtzumerken@gmail.com>]

Am 20.07.21 um 16:07 schrieb Daniel Vetter:
> On Mon, Jul 19, 2021 at 10:40:57AM +0200, Christian König wrote:
>> Am 17.07.21 um 22:29 schrieb Rob Clark:
>>> From: Rob Clark <robdclark@chromium.org>
>>>
>>> Conversion to gpu_scheduler, and bonus removal of
>>> drm_gem_object_put_locked()
>> Oh yes please!
>>
>> If I'm not completely mistaken that was the last puzzle piece missing to
>> unify TTMs and GEMs refcount of objects.
> Why does drm/msm, a driver not using ttm at all, block ttm refactorings?
> We can just check whether the TTM using driver is potentially using locked
> final unref and have a special version of
> drm_gem_object_put_guaranteed_unlocked or whatever the bikeshed will look
> like, which doesn't have the migth_lock.

Because we now don't have any unrealistic lock inversion between 
dev->struct_mutex and obj->resv lockdep can complain any more.

Cheers,
Christian.

>
> Anyway, deed is done now :-)
> -Daniel
>
>> Only problem is that I only see patch 7 and 9 in my inbox. Where is the
>> rest?
>>
>> Thanks,
>> Christian.
>>
>>> Rob Clark (11):
>>>     drm/msm: Docs and misc cleanup
>>>     drm/msm: Small submitqueue creation cleanup
>>>     drm/msm: drop drm_gem_object_put_locked()
>>>     drm: Drop drm_gem_object_put_locked()
>>>     drm/msm/submit: Simplify out-fence-fd handling
>>>     drm/msm: Consolidate submit bo state
>>>     drm/msm: Track "seqno" fences by idr
>>>     drm/msm: Return ERR_PTR() from submit_create()
>>>     drm/msm: Conversion to drm scheduler
>>>     drm/msm: Drop struct_mutex in submit path
>>>     drm/msm: Utilize gpu scheduler priorities
>>>
>>>    drivers/gpu/drm/drm_gem.c                   |  22 --
>>>    drivers/gpu/drm/msm/Kconfig                 |   1 +
>>>    drivers/gpu/drm/msm/adreno/a5xx_debugfs.c   |   4 +-
>>>    drivers/gpu/drm/msm/adreno/a5xx_gpu.c       |   6 +-
>>>    drivers/gpu/drm/msm/adreno/a5xx_power.c     |   2 +-
>>>    drivers/gpu/drm/msm/adreno/a5xx_preempt.c   |   7 +-
>>>    drivers/gpu/drm/msm/adreno/a6xx_gmu.c       |  12 +-
>>>    drivers/gpu/drm/msm/adreno/a6xx_gpu.c       |   2 +-
>>>    drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c |   4 +-
>>>    drivers/gpu/drm/msm/adreno/adreno_gpu.c     |   6 +-
>>>    drivers/gpu/drm/msm/msm_drv.c               |  30 +-
>>>    drivers/gpu/drm/msm/msm_fence.c             |  39 ---
>>>    drivers/gpu/drm/msm/msm_fence.h             |   2 -
>>>    drivers/gpu/drm/msm/msm_gem.c               |  91 +-----
>>>    drivers/gpu/drm/msm/msm_gem.h               |  37 ++-
>>>    drivers/gpu/drm/msm/msm_gem_submit.c        | 300 ++++++++++++--------
>>>    drivers/gpu/drm/msm/msm_gpu.c               |  50 +---
>>>    drivers/gpu/drm/msm/msm_gpu.h               |  41 ++-
>>>    drivers/gpu/drm/msm/msm_ringbuffer.c        |  70 ++++-
>>>    drivers/gpu/drm/msm/msm_ringbuffer.h        |  12 +
>>>    drivers/gpu/drm/msm/msm_submitqueue.c       |  49 +++-
>>>    include/drm/drm_gem.h                       |   2 -
>>>    include/uapi/drm/msm_drm.h                  |  10 +-
>>>    23 files changed, 440 insertions(+), 359 deletions(-)
>>>