[PATCH 1/6] drm/ttm: remove no_gpu_wait param from ttm_bo_move_accel_cleanup

[Alex Deucher]

On Wed, Jun 15, 2016 at 9:27 AM, Christian König
<christian.koenig at amd.com> wrote:
> Alex do you want to pull that in through your branches or should I send Dave
> a separate pull request for the TTM changes?

I'll pick it up today.

>
> BTW: I'm trying to enable this on radeon as well. In theory it should work
> out of the box.

Excellent!

Alex

>
> Regards,
> Christian.
>
>
> Am 15.06.2016 um 13:44 schrieb Christian König:
>>
>> From: Christian König <christian.koenig at amd.com>
>>
>> It isn't used and not waiting for the GPU after scheduling a move is
>> actually quite dangerous.
>>
>> Signed-off-by: Christian König <christian.koenig at amd.com>
>> ---
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 3 +--
>>   drivers/gpu/drm/nouveau/nouveau_bo.c    | 1 -
>>   drivers/gpu/drm/radeon/radeon_ttm.c     | 3 +--
>>   drivers/gpu/drm/ttm/ttm_bo_util.c       | 1 -
>>   include/drm/ttm/ttm_bo_driver.h         | 4 +---
>>   5 files changed, 3 insertions(+), 9 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> index 232f123..b2b9df6 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> @@ -287,8 +287,7 @@ static int amdgpu_move_blit(struct ttm_buffer_object
>> *bo,
>>                                new_mem->num_pages * PAGE_SIZE, /* bytes */
>>                                bo->resv, &fence);
>>         /* FIXME: handle copy error */
>> -       r = ttm_bo_move_accel_cleanup(bo, fence,
>> -                                     evict, no_wait_gpu, new_mem);
>> +       r = ttm_bo_move_accel_cleanup(bo, fence, evict, new_mem);
>>         fence_put(fence);
>>         return r;
>>   }
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c
>> b/drivers/gpu/drm/nouveau/nouveau_bo.c
>> index b61660b..49ae191 100644
>> --- a/drivers/gpu/drm/nouveau/nouveau_bo.c
>> +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
>> @@ -1082,7 +1082,6 @@ nouveau_bo_move_m2mf(struct ttm_buffer_object *bo,
>> int evict, bool intr,
>>                                 ret = ttm_bo_move_accel_cleanup(bo,
>>
>> &fence->base,
>>                                                                 evict,
>> -
>> no_wait_gpu,
>>                                                                 new_mem);
>>                                 nouveau_fence_unref(&fence);
>>                         }
>> diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c
>> b/drivers/gpu/drm/radeon/radeon_ttm.c
>> index 20ca22d..ffdad81 100644
>> --- a/drivers/gpu/drm/radeon/radeon_ttm.c
>> +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
>> @@ -300,8 +300,7 @@ static int radeon_move_blit(struct ttm_buffer_object
>> *bo,
>>         if (IS_ERR(fence))
>>                 return PTR_ERR(fence);
>>   -     r = ttm_bo_move_accel_cleanup(bo, &fence->base,
>> -                                     evict, no_wait_gpu, new_mem);
>> +       r = ttm_bo_move_accel_cleanup(bo, &fence->base, evict, new_mem);
>>         radeon_fence_unref(&fence);
>>         return r;
>>   }
>> diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c
>> b/drivers/gpu/drm/ttm/ttm_bo_util.c
>> index 434f239..c8fe554 100644
>> --- a/drivers/gpu/drm/ttm/ttm_bo_util.c
>> +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
>> @@ -637,7 +637,6 @@ EXPORT_SYMBOL(ttm_bo_kunmap);
>>   int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
>>                               struct fence *fence,
>>                               bool evict,
>> -                             bool no_wait_gpu,
>>                               struct ttm_mem_reg *new_mem)
>>   {
>>         struct ttm_bo_device *bdev = bo->bdev;
>> diff --git a/include/drm/ttm/ttm_bo_driver.h
>> b/include/drm/ttm/ttm_bo_driver.h
>> index 0d1d9d7..697e5f9 100644
>> --- a/include/drm/ttm/ttm_bo_driver.h
>> +++ b/include/drm/ttm/ttm_bo_driver.h
>> @@ -1004,7 +1004,6 @@ extern void ttm_bo_free_old_node(struct
>> ttm_buffer_object *bo);
>>    * @bo: A pointer to a struct ttm_buffer_object.
>>    * @fence: A fence object that signals when moving is complete.
>>    * @evict: This is an evict move. Don't return until the buffer is idle.
>> - * @no_wait_gpu: Return immediately if the GPU is busy.
>>    * @new_mem: struct ttm_mem_reg indicating where to move.
>>    *
>>    * Accelerated move function to be called when an accelerated move
>> @@ -1016,8 +1015,7 @@ extern void ttm_bo_free_old_node(struct
>> ttm_buffer_object *bo);
>>    */
>>     extern int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
>> -                                    struct fence *fence,
>> -                                    bool evict, bool no_wait_gpu,
>> +                                    struct fence *fence, bool evict,
>>                                      struct ttm_mem_reg *new_mem);
>>   /**
>>    * ttm_io_prot
>
>
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