1 files changed, 34 insertions, 4 deletions

diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index 86574b0005ff..ca788e01dab2 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -272,6 +272,13 @@ struct drm_mode_get_connector {
 #define DRM_MODE_PROP_OBJECT            DRM_MODE_PROP_TYPE(1)
 #define DRM_MODE_PROP_SIGNED_RANGE      DRM_MODE_PROP_TYPE(2)
 
+/* the PROP_ATOMIC flag is used to hide properties from userspace that
+ * is not aware of atomic properties.  This is mostly to work around
+ * older userspace (DDX drivers) that read/write each prop they find,
+ * witout being aware that this could be triggering a lengthy modeset.
+ */
+#define DRM_MODE_PROP_ATOMIC        0x80000000
+
 struct drm_mode_property_enum {
         __u64 value;
         char name[DRM_PROP_NAME_LEN];
@@ -338,7 +345,7 @@ struct drm_mode_fb_cmd2 {
 
         /*
          * In case of planar formats, this ioctl allows up to 4
-         * buffer objects with offets and pitches per plane.
+         * buffer objects with offsets and pitches per plane.
          * The pitch and offset order is dictated by the fourcc,
          * e.g. NV12 (http://fourcc.org/yuv.php#NV12) is described as:
          *
@@ -346,9 +353,9 @@ struct drm_mode_fb_cmd2 {
          *   followed by an interleaved U/V plane containing
          *   8 bit 2x2 subsampled colour difference samples.
          *
-         * So it would consist of Y as offset[0] and UV as
-         * offeset[1].  Note that offset[0] will generally
-         * be 0.
+         * So it would consist of Y as offsets[0] and UV as
+         * offsets[1].  Note that offsets[0] will generally
+         * be 0 (but this is not required).
          */
         __u32 handles[4];
         __u32 pitches[4]; /* pitch for each plane */
@@ -519,4 +526,27 @@ struct drm_mode_destroy_dumb {
         uint32_t handle;
 };
 
+/* page-flip flags are valid, plus: */
+#define DRM_MODE_ATOMIC_TEST_ONLY 0x0100
+#define DRM_MODE_ATOMIC_NONBLOCK  0x0200
+#define DRM_MODE_ATOMIC_ALLOW_MODESET 0x0400
+
+#define DRM_MODE_ATOMIC_FLAGS (\
+                DRM_MODE_PAGE_FLIP_EVENT |\
+                DRM_MODE_PAGE_FLIP_ASYNC |\
+                DRM_MODE_ATOMIC_TEST_ONLY |\
+                DRM_MODE_ATOMIC_NONBLOCK |\
+                DRM_MODE_ATOMIC_ALLOW_MODESET)
+
+struct drm_mode_atomic {
+        __u32 flags;
+        __u32 count_objs;
+        __u64 objs_ptr;
+        __u64 count_props_ptr;
+        __u64 props_ptr;
+        __u64 prop_values_ptr;
+        __u64 reserved;
+        __u64 user_data;
+};
+
 #endif