[PATCH 1/1] drm/ttm: Ignore signaled move fences
Felix Kuehling
felix.kuehling at amd.com
Fri Mar 5 01:21:52 UTC 2021
Am 2021-03-01 um 10:09 a.m. schrieb Christian König:
> Am 27.02.21 um 04:45 schrieb Felix Kuehling:
>> Move fences that have already signaled should not prevent memory
>> allocations with no_wait_gpu.
>>
>> Signed-off-by: Felix Kuehling <Felix.Kuehling at amd.com>
>
> Reviewed-by: Christian König <christian.koenig at amd.com>
I work on this on Alex's rebased amd-staging-drm-next. Should this go
into any other branches?
Thanks,
Felix
>
>> ---
>> drivers/gpu/drm/ttm/ttm_bo.c | 3 ++-
>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
>> index 3a10bebb75d6..de1ec838cf8b 100644
>> --- a/drivers/gpu/drm/ttm/ttm_bo.c
>> +++ b/drivers/gpu/drm/ttm/ttm_bo.c
>> @@ -730,8 +730,9 @@ static int ttm_bo_add_move_fence(struct
>> ttm_buffer_object *bo,
>> return 0;
>> if (no_wait_gpu) {
>> + ret = dma_fence_is_signaled(fence) ? 0 : -EBUSY;
>> dma_fence_put(fence);
>> - return -EBUSY;
>> + return ret;
>> }
>> dma_resv_add_shared_fence(bo->base.resv, fence);
>
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