add a brief description of the flags used in an atomic commit
Signed-off-by: Helen Koike <helen.ko...@collabora.com>
---
Changes in v3: None
Changes in v2: None
Changes in v1: None
include/uapi/drm/drm_mode.h | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index 83cd1636b9be..88ef2cf04d13 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -729,7 +729,23 @@ struct drm_mode_destroy_dumb {
__u32 handle;
};
-/* page-flip flags are valid, plus: */
+/*
+ * drm atomic flags
+ *
+ * page-flip flags are valid, plus:
+ *
+ * DRM_MODE_ATOMIC_TEST_ONLY
+ * Used with fences to check if the Sync File is a valid one.
+ *
+ * DRM_MODE_ATOMIC_NONBLOCK
+ * Perform a normal atomic update but do not block the ioctl until the request
+ * is finished, return the ioctl call immediately.
+ *
+ * DRM_MODE_ATOMIC_ALLOW_MODESET
+ * Indicates whether a full modeset is acceptable or not.
+ */
+
+/* */
#define DRM_MODE_ATOMIC_TEST_ONLY 0x0100
#define DRM_MODE_ATOMIC_NONBLOCK 0x0200
#define DRM_MODE_ATOMIC_ALLOW_MODESET 0x0400
--
2.20.1
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