[PATCH v3 15/19] drm/xe/uapi: Add flag for consulting madvise hints on svm prefetch

[Himal Prasad Ghimiray]

Introduce flag DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC to ensure prefetching
in madvise-advised memory regions

v2 (Matthew Brost)
- Add kernel-doc

Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray at intel.com>
---
 include/uapi/drm/xe_drm.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/uapi/drm/xe_drm.h b/include/uapi/drm/xe_drm.h
index e0d75226a724..03adfdc20dde 100644
--- a/include/uapi/drm/xe_drm.h
+++ b/include/uapi/drm/xe_drm.h
@@ -1111,6 +1111,10 @@ struct drm_xe_vm_bind_op {
 	/** @flags: Bind flags */
 	__u32 flags;
 
+	/** DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC as prefetch_mem_region_instance
+	 * ensures prefetching in madvise-advised memory region.
+	 */
+#define DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC	-1
 	/**
 	 * @prefetch_mem_region_instance: Memory region to prefetch VMA to.
 	 * It is a region instance, not a mask.
-- 
2.34.1