Set vblank interrupt configuration to match pipe configuration

New i915 drm ioctl (in version 1.5) allows the X server to select
which pipe drives vblank interrupts. Use this to drive from the 'preferred'
pipe. Yes, per-window vblanks would be nice in a shared fb environment.
Maybe someday.
(cherry picked from 2fb375b665f4802819b89f2277fd6154006c11ee commit)

1 files changed, 1 insertions, 0 deletions

diff --git a/src/i830.h b/src/i830.h
index 4fa33285..4fc39878 100644
--- a/src/i830.h
+++ b/src/i830.h
@@ -427,6 +427,7 @@ extern void I830DRIUnmapScreenRegions(ScrnInfoPtr pScrn, drmI830Sarea *sarea);
 extern Bool I830DRIMapScreenRegions(ScrnInfoPtr pScrn, drmI830Sarea *sarea);
 extern void I830DRIUnlock(ScrnInfoPtr pScrn);
 extern Bool I830DRILock(ScrnInfoPtr pScrn);
+extern Bool I830DRISetVBlankInterrupt (ScrnInfoPtr pScrn, Bool on);
 #endif
 
 extern Bool I830AccelInit(ScreenPtr pScreen);