[PATCH xf86-video-ati 2/2] present: Support async flips

[Michel Dänzer]

From: Michel Dänzer <michel.daenzer at amd.com>

The xserver Present code only calls radeon_present_flip with
sync_flip=FALSE if radeon_present_screen_init sets
PresentCapabilityAsync, and the latter only sets it if the kernel driver
advertises support for async flips.

Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 src/radeon_present.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/radeon_present.c b/src/radeon_present.c
index c012fed..1eced4a 100644
--- a/src/radeon_present.c
+++ b/src/radeon_present.c
@@ -248,9 +248,6 @@ radeon_present_check_flip(RRCrtcPtr crtc, WindowPtr window, PixmapPtr pixmap,
     if (info->hwcursor_disabled)
 	return FALSE;
 
-    if (!sync_flip)
-	return FALSE;
-
     if (info->drmmode.dri2_flipping)
 	return FALSE;
 
@@ -339,7 +336,7 @@ radeon_present_flip(RRCrtcPtr crtc, uint64_t event_id, uint64_t target_msc,
 			     event_id, event, crtc_id,
 			     radeon_present_flip_event,
 			     radeon_present_flip_abort,
-			     FLIP_VSYNC);
+			     sync_flip ? FLIP_VSYNC : FLIP_ASYNC);
     if (!ret)
 	xf86DrvMsg(scrn->scrnIndex, X_ERROR, "present flip failed\n");
     else
-- 
2.8.0.rc3