Re: [PATCH] drm/ttm: fix false positive assert

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Hi Christian,

Sorry I missed your original email. I just tested the patch and it works fine,
so feel free to add my Tested-by tag.

Pierre-Eric

On 09/03/2020 12:49, Christian König wrote:
> Pierre-eric, just a gentle ping on this? Could I get a tested-by?
> 
> Ray can you ack or even review this?
> 
> Thanks,
> Christian.
> 
> Am 06.03.20 um 13:41 schrieb Christian König:
>> The assert sometimes incorrectly triggers when pinned BOs are destroyed.
>>
>> Signed-off-by: Christian König <christian.koenig@xxxxxxx>
>> ---
>>   drivers/gpu/drm/ttm/ttm_bo.c | 5 ++---
>>   1 file changed, 2 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
>> index 2445e2bd6267..ca5a8d01ff1f 100644
>> --- a/drivers/gpu/drm/ttm/ttm_bo.c
>> +++ b/drivers/gpu/drm/ttm/ttm_bo.c
>> @@ -151,8 +151,6 @@ static void ttm_bo_add_mem_to_lru(struct ttm_buffer_object *bo,
>>       struct ttm_bo_device *bdev = bo->bdev;
>>       struct ttm_mem_type_manager *man;
>>   -    dma_resv_assert_held(bo->base.resv);
>> -
>>       if (!list_empty(&bo->lru))
>>           return;
>>   @@ -611,7 +609,8 @@ static void ttm_bo_release(struct kref *kref)
>>            */
>>           if (bo->mem.placement & TTM_PL_FLAG_NO_EVICT) {
>>               bo->mem.placement &= ~TTM_PL_FLAG_NO_EVICT;
>> -            ttm_bo_move_to_lru_tail(bo, NULL);
>> +            ttm_bo_del_from_lru(bo);
>> +            ttm_bo_add_mem_to_lru(bo, &bo->mem);
>>           }
>>             kref_init(&bo->kref);
> 
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