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drm/amdgpu: add more warning to amdgpu_bo_offset 

Warn when we try to get the address and the BO isn't locked or reserved.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2016-07-25 17:56:18 +02:00 committed by Alex Deucher
parent 78bbbd9c0f
commit cdb7e8f273
2 changed files with 19 additions and 15 deletions
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18
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
View File

@ -737,3 +737,21 @@ void amdgpu_bo_fence(struct amdgpu_bo *bo, struct fence *fence,
else
reservation_object_add_excl_fence(resv, fence);
}
/**
* amdgpu_bo_gpu_offset - return GPU offset of bo
* @bo: amdgpu object for which we query the offset
*
* Returns current GPU offset of the object.
*
* Note: object should either be pinned or reserved when calling this
* function, it might be useful to add check for this for debugging.
*/
u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo)
{
WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_SYSTEM);
WARN_ON_ONCE(!ww_mutex_is_locked(&bo->tbo.resv->lock) &&
!bo->pin_count);
return bo->tbo.offset;
}

16
drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
View File

@ -85,21 +85,6 @@ static inline void amdgpu_bo_unreserve(struct amdgpu_bo *bo)
ttm_bo_unreserve(&bo->tbo);
}
/**
* amdgpu_bo_gpu_offset - return GPU offset of bo
* @bo: amdgpu object for which we query the offset
*
* Returns current GPU offset of the object.
*
* Note: object should either be pinned or reserved when calling this
* function, it might be useful to add check for this for debugging.
*/
static inline u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo)
{
WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_SYSTEM);
return bo->tbo.offset;
}
static inline unsigned long amdgpu_bo_size(struct amdgpu_bo *bo)
{
return bo->tbo.num_pages << PAGE_SHIFT;
@ -169,6 +154,7 @@ void amdgpu_bo_move_notify(struct ttm_buffer_object *bo,
int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
void amdgpu_bo_fence(struct amdgpu_bo *bo, struct fence *fence,
bool shared);
u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo);
/*
* sub allocation