[PATCH] Add DRM_MODE_PAGE_FLIP_ASYNC define

[Keith Packard]

This exposes the kernel API for performing asynchronous flips

Signed-off-by: Keith Packard <keithp at keithp.com>
---

 include/drm/drm.h      | 1 +
 include/drm/drm_mode.h | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/drm/drm.h b/include/drm/drm.h
index 725bf51..f0b4c16 100644
--- a/include/drm/drm.h
+++ b/include/drm/drm.h
@@ -797,6 +797,7 @@ struct drm_event_vblank {
 #define DRM_CAP_DUMB_PREFER_SHADOW 0x4
 #define DRM_CAP_PRIME 0x5
 #define DRM_CAP_TIMESTAMP_MONOTONIC 0x6
+#define DRM_CAP_ASYNC_PAGE_FLIP 0x7
 
 #define DRM_PRIME_CAP_IMPORT 0x1
 #define DRM_PRIME_CAP_EXPORT 0x2
diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h
index c1bb1a3..76fd76b 100644
--- a/include/drm/drm_mode.h
+++ b/include/drm/drm_mode.h
@@ -425,7 +425,8 @@ struct drm_mode_crtc_lut {
 };
 
 #define DRM_MODE_PAGE_FLIP_EVENT 0x01
-#define DRM_MODE_PAGE_FLIP_FLAGS DRM_MODE_PAGE_FLIP_EVENT
+#define DRM_MODE_PAGE_FLIP_ASYNC 0x02
+#define DRM_MODE_PAGE_FLIP_FLAGS (DRM_MODE_PAGE_FLIP_EVENT|DRM_MODE_PAGE_FLIP_ASYNC)
 
 /*
  * Request a page flip on the specified crtc.
-- 
1.8.4.2