diff options
Diffstat (limited to 'sys/dev/pci/drm')
| -rw-r--r-- | sys/dev/pci/drm/drm_irq.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/dev/pci/drm/drm_irq.c b/sys/dev/pci/drm/drm_irq.c index dd8474fc4a0..cbb80424abc 100644 --- a/sys/dev/pci/drm/drm_irq.c +++ b/sys/dev/pci/drm/drm_irq.c @@ -1317,8 +1317,21 @@ void drm_wait_one_vblank(struct drm_device *dev, unsigned int pipe) int ret; u32 last; - if (WARN_ON(pipe >= dev->num_crtcs) || cold) + if (WARN_ON(pipe >= dev->num_crtcs)) + return; + +#ifdef __OpenBSD__ + /* + * If we're cold, vblank interrupts won't happen even if + * they're turned on by the driver. Just stall long enough + * for a vblank to pass. This assumes a vrefresh of at least + * 25 Hz. + */ + if (cold) { + delay(40000); return; + } +#endif ret = drm_vblank_get(dev, pipe); if (WARN(ret, "vblank not available on crtc %i, ret=%i\n", pipe, ret)) |