[PATCH 5.16 0902/1039] Revert "drm/amdgpu: Dont inherit GEM object VMAs in child process"

From: Greg Kroah-Hartman
Date: Mon Jan 24 2022 - 17:47:34 EST


From: Rajneesh Bhardwaj <rajneesh.bhardwaj@xxxxxxx>

commit 8b5da5a458c95ad49571a6a6285800bf13409616 upstream.

This reverts commit fbcdbfde87509d523132b59f661a355c731139d0.

Reviewed-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 3 ---
1 file changed, 3 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -264,9 +264,6 @@ static int amdgpu_gem_object_mmap(struct
!(vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)))
vma->vm_flags &= ~VM_MAYWRITE;

- if (bo->kfd_bo)
- vma->vm_flags |= VM_DONTCOPY;
-
return drm_gem_ttm_mmap(obj, vma);
}