diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/armada/armada_crtc.c | 33 | ||||
| -rw-r--r-- | drivers/gpu/drm/armada/armada_crtc.h | 1 |
2 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c index 80d34a4b7d41..a0c67ec892cf 100644 --- a/drivers/gpu/drm/armada/armada_crtc.c +++ b/drivers/gpu/drm/armada/armada_crtc.c @@ -232,6 +232,19 @@ static void armada_drm_vblank_off(struct armada_crtc *dcrtc) armada_drm_plane_work_run(dcrtc, dcrtc->crtc.primary); } +static void armada_drm_crtc_queue_state_event(struct drm_crtc *crtc) +{ + struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc); + struct drm_pending_vblank_event *event; + + /* If we have an event, we need vblank events enabled */ + event = xchg(&crtc->state->event, NULL); + if (event) { + WARN_ON(drm_crtc_vblank_get(crtc) != 0); + dcrtc->event = event; + } +} + /* The mode_config.mutex will be held for this call */ static void armada_drm_crtc_dpms(struct drm_crtc *crtc, int dpms) { @@ -294,6 +307,8 @@ static void armada_drm_crtc_commit(struct drm_crtc *crtc) dcrtc->dpms = DRM_MODE_DPMS_ON; armada_drm_crtc_update(dcrtc); drm_crtc_vblank_on(crtc); + + armada_drm_crtc_queue_state_event(crtc); } /* The mode_config.mutex will be held for this call */ @@ -337,6 +352,7 @@ static void armada_drm_crtc_enable_irq(struct armada_crtc *dcrtc, u32 mask) static void armada_drm_crtc_irq(struct armada_crtc *dcrtc, u32 stat) { + struct drm_pending_vblank_event *event; void __iomem *base = dcrtc->base; struct drm_plane *ovl_plane; @@ -383,6 +399,16 @@ static void armada_drm_crtc_irq(struct armada_crtc *dcrtc, u32 stat) if (stat & GRA_FRAME_IRQ) armada_drm_plane_work_run(dcrtc, dcrtc->crtc.primary); + + if (stat & VSYNC_IRQ) { + event = xchg(&dcrtc->event, NULL); + if (event) { + spin_lock(&dcrtc->crtc.dev->event_lock); + drm_crtc_send_vblank_event(&dcrtc->crtc, event); + spin_unlock(&dcrtc->crtc.dev->event_lock); + drm_crtc_vblank_put(&dcrtc->crtc); + } + } } static irqreturn_t armada_drm_irq(int irq, void *arg) @@ -554,6 +580,13 @@ static void armada_drm_crtc_atomic_flush(struct drm_crtc *crtc, spin_lock_irqsave(&dcrtc->irq_lock, flags); armada_drm_crtc_update_regs(dcrtc, dcrtc->regs); spin_unlock_irqrestore(&dcrtc->irq_lock, flags); + + /* + * If we aren't doing a full modeset, then we need to queue + * the event here. + */ + if (!drm_atomic_crtc_needs_modeset(crtc->state)) + armada_drm_crtc_queue_state_event(crtc); } static const struct drm_crtc_helper_funcs armada_crtc_helper_funcs = { diff --git a/drivers/gpu/drm/armada/armada_crtc.h b/drivers/gpu/drm/armada/armada_crtc.h index 775c01c52982..8b1de877cb02 100644 --- a/drivers/gpu/drm/armada/armada_crtc.h +++ b/drivers/gpu/drm/armada/armada_crtc.h @@ -90,6 +90,7 @@ struct armada_crtc { spinlock_t irq_lock; uint32_t irq_ena; + struct drm_pending_vblank_event *event; struct armada_regs atomic_regs[32]; struct armada_regs *regs; unsigned int regs_idx; |