Add xe_bo_vm_access which is wrapper around ttm_bo_vm_access which takes
rpm refs for device access.

Suggested-by: Thomas Hellström <thomas.hellst...@linux.intel.com>
Signed-off-by: Matthew Brost <matthew.br...@intel.com>
Reviewed-by: Matthew Auld <matthew.a...@intel.com>
---
 drivers/gpu/drm/xe/xe_bo.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c
index ec070af12662..aaf54131c89e 100644
--- a/drivers/gpu/drm/xe/xe_bo.c
+++ b/drivers/gpu/drm/xe/xe_bo.c
@@ -1249,11 +1249,26 @@ static vm_fault_t xe_gem_fault(struct vm_fault *vmf)
        return ret;
 }
 
+static int xe_bo_vm_access(struct vm_area_struct *vma, unsigned long addr,
+                          void *buf, int len, int write)
+{
+       struct ttm_buffer_object *ttm_bo = vma->vm_private_data;
+       struct xe_bo *bo = ttm_to_xe_bo(ttm_bo);
+       struct xe_device *xe = xe_bo_device(bo);
+       int ret;
+
+       xe_pm_runtime_get(xe);
+       ret = ttm_bo_vm_access(vma, addr, buf, len, write);
+       xe_pm_runtime_put(xe);
+
+       return ret;
+}
+
 static const struct vm_operations_struct xe_gem_vm_ops = {
        .fault = xe_gem_fault,
        .open = ttm_bo_vm_open,
        .close = ttm_bo_vm_close,
-       .access = ttm_bo_vm_access
+       .access = xe_bo_vm_access,
 };
 
 static const struct drm_gem_object_funcs xe_gem_object_funcs = {
-- 
2.34.1

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