From: Michel Dänzer Date: Tue Mar 15 16:47:35 2016 +0900 Subject: [PATCH 3/20]present: Support async flips Patch-mainline: Upstream Git-repo: git://anongit.freedesktop.org/xorg/driver/xf86-video-ati Git-commit: 1ca677309720e2f6c953c9e76f5b34c22a4416c6 References: bsc#990066 Signed-off-by: Max Staudt 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. Reviewed-by: Alex Deucher --- 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 1a0e06a..69a0532 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