struct drm_crtc *crtc = &head->base.base;
struct drm_device *dev = crtc->dev;
struct nv50_disp *disp = nv50_disp(dev);
+ const uint64_t start_vbl = drm_crtc_vblank_count(crtc);
+ uint64_t end_vbl;
u8 new_idx = crc->ctx_idx ^ 1;
/*
*/
if (!mutex_trylock(&disp->mutex)) {
drm_dbg_kms(dev, "Lock contended, delaying CRC ctx flip for %s\n", crtc->name);
- drm_vblank_work_schedule(work,
- drm_crtc_vblank_count(crtc) + 1,
- true);
+ drm_vblank_work_schedule(work, start_vbl + 1, true);
return;
}
nv50_crc_program_ctx(head, &crc->ctx[new_idx]);
mutex_unlock(&disp->mutex);
+ end_vbl = drm_crtc_vblank_count(crtc);
+ if (unlikely(end_vbl != start_vbl))
+ NV_ERROR(nouveau_drm(dev),
+ "Failed to flip CRC context on %s on time (%llu > %llu)\n",
+ crtc->name, end_vbl, start_vbl);
+
spin_lock_irq(&crc->lock);
crc->ctx_changed = true;
spin_unlock_irq(&crc->lock);