[igt-dev] [PATCH 1/4] xe: Update to latest uAPI

[Matthew Brost <matthew.brost@intel.com>]

Needed to test NULL VM binds.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
 include/drm-uapi/xe_drm.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/drm-uapi/xe_drm.h b/include/drm-uapi/xe_drm.h
index 593b01ba..4bde1087 100644
--- a/include/drm-uapi/xe_drm.h
+++ b/include/drm-uapi/xe_drm.h
@@ -446,6 +446,14 @@ struct drm_xe_vm_bind_op {
 	 * than differing the MAP to the page fault handler.
 	 */
 #define XE_VM_BIND_FLAG_IMMEDIATE	(0x1 << 18)
+	/*
+	 * When the NULL flag is set, the page tables are setup with a special
+	 * bit which indicates writes are dropped and all reads return zero. The
+	 * NULL flags is only valid for XE_VM_BIND_OP_MAP operations, the BO
+	 * handle MBZ, and the BO offset MBZ. This flag is intended to implement
+	 * VK sparse bindings.
+	 */
+#define XE_VM_BIND_FLAG_NULL		(0x1 << 19)
 
 	/** @reserved: Reserved */
 	__u64 reserved[2];
-- 
2.34.1