Revert "drm/amdgpu: Don't inherit GEM object VMAs in child process"

rajbhar · alexdeucher · commit 8b5da5a458c9 · 2022-01-11T15:44:27.000-05:00
This reverts commit fbcdbfd. Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git 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 drm_gem_object *obj, struct vm_area_str
 	    !(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);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -264,9 +264,6 @@ static int amdgpu_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_str`
`264`	`264`	`!(vma->vm_flags & (VM_READ \| VM_WRITE \| VM_EXEC)))`
`265`	`265`	`vma->vm_flags &= ~VM_MAYWRITE;`
`266`	`266`
`267`		`- if (bo->kfd_bo)`
`268`		`- vma->vm_flags \|= VM_DONTCOPY;`
`269`		`-`
`270`	`267`	`return drm_gem_ttm_mmap(obj, vma);`
`271`	`268`	`}`
`272`	`269`