diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_display.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_display.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 24011596af43..6601690ab29c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -734,6 +734,9 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y, new_bo->bo.offset }; + /* Keep vblanks on during flip, for the target crtc of this flip */ + drm_vblank_get(dev, nouveau_crtc(crtc)->index); + /* Emit a page flip */ if (nv_device(drm->device)->card_type >= NV_50) { ret = nv50_display_flip_next(crtc, fb, chan, swap_interval); @@ -762,9 +765,9 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, } ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence); - mutex_unlock(&chan->cli->mutex); if (ret) goto fail_unreserve; + mutex_unlock(&chan->cli->mutex); /* Update the crtc struct and cleanup */ crtc->fb = fb; @@ -777,6 +780,7 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, return 0; fail_unreserve: + drm_vblank_put(dev, nouveau_crtc(crtc)->index); ttm_bo_unreserve(&old_bo->bo); fail_unpin: mutex_unlock(&chan->cli->mutex); @@ -796,6 +800,7 @@ nouveau_finish_page_flip(struct nouveau_channel *chan, struct drm_device *dev = drm->dev; struct nouveau_page_flip_state *s; unsigned long flags; + int crtcid = -1; spin_lock_irqsave(&dev->event_lock, flags); @@ -806,8 +811,16 @@ nouveau_finish_page_flip(struct nouveau_channel *chan, } s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head); - if (s->event) - drm_send_vblank_event(dev, s->crtc, s->event); + if (s->event) { + /* Vblank timestamps/counts are only correct on >= NV-50 */ + if (nv_device(drm->device)->card_type >= NV_50) + crtcid = s->crtc; + + drm_send_vblank_event(dev, crtcid, s->event); + } + + /* Give up ownership of vblank for page-flipped crtc */ + drm_vblank_put(dev, s->crtc); list_del(&s->head); if (ps) |