drm/xe/vm: Add an identifier in xe_vma_ops for svm prefetch

Add a flag in xe_vma_ops to determine whether it has svm prefetch ops or
not.

v2:
 - s/false/0 (Matthew Brost)

v3:
 - s/XE_VMA_OPS_HAS_SVM_PREFETCH/XE_VMA_OPS_FLAG_HAS_SVM_PREFETCH

Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://lore.kernel.org/r/20250513040228.470682-8-himal.prasad.ghimiray@intel.com
Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>

Author: hghimira

drivers/gpu/drm/xe/xe_vm.c

@@ -3240,6 +3240,7 @@ static void xe_vma_ops_init(struct xe_vma_ops *vops, struct xe_vm *vm,
 	vops->q = q;
 	vops->syncs = syncs;
 	vops->num_syncs = num_syncs;
+	vops->flags = 0;
 }
 
 static int xe_vm_bind_ioctl_validate_bo(struct xe_device *xe, struct xe_bo *bo,

drivers/gpu/drm/xe/xe_vm_types.h

@@ -445,6 +445,9 @@ struct xe_vma_ops {
 	u32 num_syncs;
 	/** @pt_update_ops: page table update operations */
 	struct xe_vm_pgtable_update_ops pt_update_ops[XE_MAX_TILES_PER_DEVICE];
+	/** @flag: signify the properties within xe_vma_ops*/
+#define XE_VMA_OPS_FLAG_HAS_SVM_PREFETCH BIT(0)
+	u32 flags;
 #ifdef TEST_VM_OPS_ERROR
 	/** @inject_error: inject error to test error handling */
 	bool inject_error;