[src/trunk]: src/sys/external/bsd/drm2/dist/drm Convert wait_event_timeout to...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/53667c4f4655
branches:  trunk
changeset: 365870:53667c4f4655
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Mon Aug 27 07:03:39 2018 +0000

description:
Convert wait_event_timeout to DRM_SPIN_TIMED_WAIT_UNTIL.

diffstat:

 sys/external/bsd/drm2/dist/drm/drm_irq.c |  13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diffs (39 lines):

diff -r 77dc5db7fd8e -r 53667c4f4655 sys/external/bsd/drm2/dist/drm/drm_irq.c
--- a/sys/external/bsd/drm2/dist/drm/drm_irq.c  Mon Aug 27 07:03:25 2018 +0000
+++ b/sys/external/bsd/drm2/dist/drm/drm_irq.c  Mon Aug 27 07:03:39 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: drm_irq.c,v 1.11 2018/08/27 07:03:25 riastradh Exp $   */
+/*     $NetBSD: drm_irq.c,v 1.12 2018/08/27 07:03:39 riastradh Exp $   */
 
 /*
  * drm_irq.c IRQ and vblank support
@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: drm_irq.c,v 1.11 2018/08/27 07:03:25 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: drm_irq.c,v 1.12 2018/08/27 07:03:39 riastradh Exp $");
 
 #include <drm/drmP.h>
 #include "drm_trace.h"
@@ -1397,11 +1397,20 @@
        if (WARN(ret, "vblank not available on crtc %i, ret=%i\n", pipe, ret))
                return;
 
+#ifdef __NetBSD__
+       spin_lock(&dev->vbl_lock);
+       last = drm_vblank_count(dev, pipe);
+       DRM_SPIN_TIMED_WAIT_UNTIL(ret, &vblank->queue, &dev->vbl_lock,
+           msecs_to_jiffies(100),
+           last != drm_vblank_count(dev, pipe));
+       spin_unlock(&dev->vbl_lock);
+#else
        last = drm_vblank_count(dev, pipe);
 
        ret = wait_event_timeout(vblank->queue,
                                 last != drm_vblank_count(dev, pipe),
                                 msecs_to_jiffies(100));
+#endif
 
        WARN(ret == 0, "vblank wait timed out on crtc %i\n", pipe);