diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index c9faa69cd677..333cfbdf6dd0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -731,8 +731,10 @@ struct amdgpu_ttm_tt { #define MAX_RETRY_HMM_RANGE_FAULT 16 -int amdgpu_ttm_tt_get_user_pages(struct ttm_tt *ttm, struct page **pages) +int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct page **pages) { + struct hmm_mirror *mirror = bo->mn ? &bo->mn->mirror : NULL; + struct ttm_tt *ttm = bo->tbo.ttm; struct amdgpu_ttm_tt *gtt = (void *)ttm; struct mm_struct *mm = gtt->usertask->mm; unsigned long start = gtt->userptr; @@ -746,6 +748,12 @@ int amdgpu_ttm_tt_get_user_pages(struct ttm_tt *ttm, struct page **pages) if (!mm) /* Happens during process shutdown */ return -ESRCH; + if (unlikely(!mirror)) { + DRM_DEBUG_DRIVER("Failed to get hmm_mirror\n"); + r = -EFAULT; + goto out; + } + vma = find_vma(mm, start); if (unlikely(!vma || start < vma->vm_start)) { r = -EFAULT; |